New upstream version 2.5~beta3upstream/2.5_beta3

96 files changed, 84228 insertions, 3535 deletions

diff --git a/.git-blame-ignore-revs b/.git-blame-ignore-revs
deleted file mode 100644
index 1e940db..0000000
--- a/.git-blame-ignore-revs
+++ /dev/null
@@ -1,41 +0,0 @@
-# This FILE allows git blame to ignore reformatting changes and instead
-# shows the previous commit that changed the line.
-#
-# To avoid manually building the list of commits this commit
-# adds a file with a list of reformatting commits. TO use:
-#
-#   git blame --ignore-revs-file=.git-blame-ignore-revs file
-#
-# or to automatically always use the file
-#
-#   git config blame.ignoreRevsFile .git-blame-ignore-revs
-
-# Uncrustify 2020/06... (engine, pool, SSO)
-c1ff8f247f91c88a2df5502eeedf42857f9a6831
-
-# Uncrustify the tests/unit_tests/ part of our tree.
-da1574ef7826d73f01e120cbd1ba40ce39a305b7
-
-# Another round of uncrustify code cleanup.
-9cf7b4925a54d93fbea1cadcf3dc0e11f3ce358f
-
-# networking_sitnl.c: uncrustify file
-2c45d268ca65c522fbabb7c4dab5e721296b4623
-
-# Uncrustify tapctl and openvpnmsica
-6280d3d5536174934ee22d3840457d61896e0e3a
-
-# tun.c: uncrustify
-baef44fc8769bbd99f4d699ce9f63180c29a5455
-
-# networking_sitnl.c: uncrustify file
-2c45d268ca65c522fbabb7c4dab5e721296b4623
-
-# uncrustify openvpn sources
-f57431cdc88f22fa4d7962946f0d3187fe058539
-
-# More broadly enforce Allman style and braces-around-conditionals
-4cd4899e8e80efae03c584a760fd107251735723
-
-# The Great Reformatting - first phase
-81d882d5302b8b647202a6893b57dfdc61fd6df2
diff --git a/.github/PULL_REQUEST_TEMPLATE.md b/.github/PULL_REQUEST_TEMPLATE.md
deleted file mode 100644
index a454b7a..0000000
--- a/.github/PULL_REQUEST_TEMPLATE.md
+++ /dev/null
@@ -1,15 +0,0 @@
-# Thank you for your contribution
-
-You are welcome to open PR, but they are used for discussion only. All
-patches must eventually go to the openvpn-devel mailing list for review:
-
-* https://lists.sourceforge.net/lists/listinfo/openvpn-devel
-
-Please send your patch using [git-send-email](https://git-scm.com/docs/git-send-email). For example to send your latest commit to the list:
-
-    $ git send-email --to=openvpn-devel@lists.sourceforge.net HEAD~1
-
-For details, see these Wiki articles:
-
-* https://community.openvpn.net/openvpn/wiki/DeveloperDocumentation
-* https://community.openvpn.net/openvpn/wiki/Contributing
diff --git a/.mailmap b/.mailmap
deleted file mode 100644
index 6773967..0000000
--- a/.mailmap
+++ /dev/null
@@ -1,13 +0,0 @@
-Adriaan de Jong <dejong@fox-it.com>             <adriaan@adriaan-VirtualBox.(none)>
-David Sommerseth <dazo@eurephia.net>            <dazo@users.sourceforge.net>
-Gert Doering <gert@greenie.muc.de>              <gd@medat.de>
-Gert Doering <gert@greenie.muc.de>              <gert@fbsd74.ov.greenie.net>
-Gert Doering <gert@greenie.muc.de>              <gert@fbsd90.ov.greenie.net>
-Gert Doering <gert@greenie.muc.de>              <gert@mobile.greenie.muc.de>
-James Yonan <james@openvpn.net>                 <james@e7ae566f-a301-0410-adde-c780ea21d3b5>
-Jan Just Keijser <janjust@nikhef.nl>            <janjust@nikhef.nl>
-JuanJo Ciarlante <jjo@google.com>               <jjo+ml@google.com>
-Karl O. Pinc <kop@meme.com>                     <kop@mofo.meme.com>
-Robert Fischer <ml-openvpn@trispace.org>        <ml-openvpn@trispace.org>
-Samuli Seppänen <samuli@openvpn.net>            <samuli@openvpn.net>
-Seth Mos <seth.mos@dds.nl>                      <seth.mos@dds.nl>
diff --git a/.svncommitters b/.svncommitters
deleted file mode 100644
index 0772102..0000000
--- a/.svncommitters
+++ /dev/null
@@ -1 +0,0 @@
-james = James Yonan <james@openvpn.net>
diff --git a/.travis.yml b/.travis.yml
deleted file mode 100644
index 2d379c7..0000000
--- a/.travis.yml
+++ /dev/null
@@ -1,126 +0,0 @@
-dist: bionic
-
-os: linux
-
-language: c
-
-env:
-  global:
-    - JOBS=3
-    - RUN_SUDO="false"
-    - PREFIX="${HOME}/opt"
-    - TAP_WINDOWS_VERSION=9.23.3
-    - LZO_VERSION=2.10
-    - PKCS11_HELPER_VERSION=1.26
-    - MBEDTLS_VERSION=2.16.4
-    - MBEDTLS_CFLAGS="-I${PREFIX}/include"
-    - MBEDTLS_LIBS="-L${PREFIX}/lib -lmbedtls -lmbedx509 -lmbedcrypto"
-    - OPENSSL_VERSION=1.0.2u
-    - OPENSSL_CFLAGS="-I${PREFIX}/include"
-    - OPENSSL_LIBS="-L${PREFIX}/lib -lssl -lcrypto"
-    # The next declaration is the encrypted COVERITY_SCAN_TOKEN, created
-    #   via the "travis encrypt" command using the project repo's public key
-    - secure: "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"
-
-jobs:
-  include:
-    - name: cl
-      env:
-      - SSLLIB="openssl"
-      - OPENSSL_VERSION="1.1.1d"
-      - P7Z="c:\Program Files\7-Zip\7z.exe"
-      - CC="cl"
-      os: windows
-      compiler: cl
-    - name: Coverity scan
-      env: SSLLIB="openssl" RUN_COVERITY="1"
-      os: linux
-      compiler: gcc
-    - name: gcc | openssl-1.1.1d
-      env: SSLLIB="openssl" OPENSSL_VERSION="1.1.1d"
-      os: linux
-      arch: amd64
-      compiler: gcc
-    - name: gcc | openssl-1.1.1d
-      env: SSLLIB="openssl" OPENSSL_VERSION="1.1.1d"
-      os: linux
-      arch: ppc64le
-      compiler: gcc
-    - name: gcc | openssl-1.1.1d
-      env: SSLLIB="openssl" OPENSSL_VERSION="1.1.1d"
-      os: linux
-      arch: arm64
-      compiler: gcc
-    - name: gcc | openssl-1.1.1d
-      env: SSLLIB="openssl" OPENSSL_VERSION="1.1.1d"
-      os: linux
-      arch: s390x
-      compiler: gcc
-    - name: gcc | openssl-1.0.2u | iproute2
-      env: SSLLIB="openssl" EXTRA_CONFIG="--enable-iproute2"
-      os: linux
-      compiler: gcc
-    - name: clang+asan | openssl-1.0.2u
-      env: SSLLIB="openssl" CFLAGS="-fsanitize=address" CC=clang-9
-      os: linux
-      compiler: clang
-    - name: clang | openssl-1.1.1d
-      env: SSLLIB="openssl" OPENSSL_VERSION="1.1.1d" CC=clang-9
-      os: linux
-      compiler: clang
-    - name: gcc | mbedtls
-      env: SSLLIB="mbedtls"
-      os: linux
-      compiler: gcc
-    - name: clang+asan | mbedtls
-      env: SSLLIB="mbedtls" CFLAGS="-fsanitize=address" CC=clang-9
-      os: linux
-      compiler: clang
-    - name: clang | openssl-1.0.2u
-      env: SSLLIB="openssl"
-      os: osx
-      compiler: clang
-    - name: clang | mbedtls
-      env: SSLLIB="mbedtls"
-      os: osx
-      compiler: clang
-    - name: mingw64 | openssl-1.1.1d
-      env: SSLLIB="openssl" CHOST=x86_64-w64-mingw32 OPENSSL_VERSION="1.1.1d"
-      os: linux
-      compiler: ": Win64 build only"
-    - name: mingw32 | openssl-1.0.2u
-      env: SSLLIB="openssl" CHOST=i686-w64-mingw32
-      os: linux
-      compiler: ": Win32 build only"
-    - name: clang | openssl-1.0.2u | disable-lzo | distcheck
-      env: SSLLIB="openssl" EXTRA_CONFIG="--disable-lzo" EXTRA_SCRIPT="make distcheck" CC=clang-9
-      os: linux
-      compiler: clang
-    - name: clang | openssl-1.0.2u | enable-small
-      env: SSLLIB="openssl" EXTRA_CONFIG="--enable-small" CC=clang-9
-      os: linux
-      compiler: clang
-
-addons:
-  apt:
-    update: true
-    packages: [ liblzo2-dev, libpam0g-dev, liblz4-dev, linux-libc-dev, man2html, mingw-w64, clang-9, libcmocka-dev, python3-docutils ]
-  homebrew:
-    update: true
-    packages: [ lzo, lz4, cmocka ]
-
-cache:
-  directories:
-  - download-cache
-  - ${HOME}/opt
-  - ${HOME}/Library/Caches/Homebrew
-
-install:
-  - if [ ! -z "${CHOST}" ]; then unset CC; fi
-  - travis_wait 30 bash -c '.travis/build-deps.sh > build-deps.log 2>&1' || (cat build-deps.log && exit 1)
-
-before_script:
-  - .travis/coverity.sh
-
-script:
-  - .travis/build-check.sh
diff --git a/.travis/build-check.sh b/.travis/build-check.sh
deleted file mode 100755
index 4e1b724..0000000
--- a/.travis/build-check.sh
+++ /dev/null
@@ -1,32 +0,0 @@
-#!/bin/sh
-set -eux
-
-if [ "${TRAVIS_OS_NAME}" = "windows" ]; then
-	PATH="/c/Program Files (x86)/Microsoft Visual Studio/2019/BuildTools/MSBuild/Current/Bin/":$PATH
-	MSBuild.exe openvpn.sln //p:Platform=x64 && exit 0
-fi
-
-autoreconf -vi
-
-if [ -z ${CHOST+x} ]; then
-	if [ "${TRAVIS_OS_NAME}" = "linux" ]; then
-		export EXTRA_CONFIG="${EXTRA_CONFIG:-} --enable-werror"
-	fi
-	./configure --with-crypto-library="${SSLLIB}" ${EXTRA_CONFIG:-} || (cat config.log && exit 1)
-	make LDFLAGS="-Wl,-rpath,${PREFIX}/lib" -j$JOBS
-	src/openvpn/openvpn --version || true
-	if [ "${TRAVIS_OS_NAME}" = "linux" ]; then
-		ldd src/openvpn/openvpn;
-	fi
-	if [ "${TRAVIS_OS_NAME}" = "osx" ]; then otool -L src/openvpn/openvpn; fi
-	make check
-	${EXTRA_SCRIPT:-}
-else
-	export TAP_CFLAGS="-I${PWD}/tap-windows-${TAP_WINDOWS_VERSION}/include"
-	export LZO_CFLAGS="-I${PREFIX}/include"
-	export LZO_LIBS="-L${PREFIX}/lib -llzo2"
-	export PKCS11_HELPER_LIBS="-L${PREFIX}/lib -lpkcs11-helper"
-	export PKCS11_HELPER_CFLAGS="-I${PREFIX}/include"
-	./configure --with-crypto-library="${SSLLIB}" --host=${CHOST} --build=x86_64-pc-linux-gnu --enable-pkcs11 --disable-plugins || (cat config.log && exit 1)
-	make -j${JOBS}
-fi
diff --git a/.travis/build-deps.sh b/.travis/build-deps.sh
deleted file mode 100755
index 08b93e7..0000000
--- a/.travis/build-deps.sh
+++ /dev/null
@@ -1,170 +0,0 @@
-#!/bin/sh
-set -eux
-
-if [ "${TRAVIS_OS_NAME}" = "windows" ]; then
-    choco install strawberryperl nasm
-    choco install visualstudio2019buildtools --package-parameters "--includeRecommended --includeOptional"
-    choco install visualstudio2019-workload-vctools
-    cd ..
-    git clone https://github.com/openvpn/openvpn-build.git
-    cd openvpn-build
-    PATH="/c/Strawberry/perl/bin:":$PATH MODE=DEPS msvc/build.bat
-    exit 0
-fi
-
-# Set defaults
-PREFIX="${PREFIX:-${HOME}/opt}"
-
-download_tap_windows () {
-    if [ ! -f "download-cache/tap-windows-${TAP_WINDOWS_VERSION}.zip" ]; then
-       wget -P download-cache/ \
-           "http://build.openvpn.net/downloads/releases/tap-windows-${TAP_WINDOWS_VERSION}.zip"
-    fi
-}
-
-download_lzo () {
-    if [ ! -f "download-cache/lzo-${LZO_VERSION}.tar.gz" ]; then
-        wget -P download-cache/ \
-            "http://www.oberhumer.com/opensource/lzo/download/lzo-${LZO_VERSION}.tar.gz"
-    fi
-}
-
-build_lzo () {
-    if [ "$(cat ${PREFIX}/.lzo-version)" != "${LZO_VERSION}" ]; then
-        tar zxf download-cache/lzo-${LZO_VERSION}.tar.gz
-        (
-            cd "lzo-${LZO_VERSION}"
-
-            ./configure --host=${CHOST} --program-prefix='' \
-                --libdir=${PREFIX}/lib --prefix=${PREFIX} --build=x86_64-pc-linux-gnu
-            make all install
-        )
-        echo "${LZO_VERSION}" > "${PREFIX}/.lzo-version"
-    fi
-}
-
-download_pkcs11_helper () {
-    if [ ! -f "pkcs11-helper-${PKCS11_HELPER_VERSION}.tar.gz" ]; then
-        wget -P download-cache/ \
-            "https://github.com/OpenSC/pkcs11-helper/archive/pkcs11-helper-${PKCS11_HELPER_VERSION}.tar.gz"
-    fi
-}
-
-build_pkcs11_helper () {
-    if [ "$(cat ${PREFIX}/.pkcs11_helper-version)" != "${PKCS11_HELPER_VERSION}" ]; then
-        tar xf download-cache/pkcs11-helper-${PKCS11_HELPER_VERSION}.tar.gz
-        (
-            cd "pkcs11-helper-pkcs11-helper-${PKCS11_HELPER_VERSION}"
-
-            autoreconf -iv
-
-            ./configure --host=${CHOST} --program-prefix='' --libdir=${PREFIX}/lib \
-                 --prefix=${PREFIX} --build=x86_64-pc-linux-gnu \
-                 --disable-crypto-engine-gnutls \
-                 --disable-crypto-engine-nss \
-                 --disable-crypto-engine-polarssl \
-                 --disable-crypto-engine-mbedtls
-            make all install
-         )
-         echo "${PKCS11_HELPER_VERSION}" > "${PREFIX}/.pkcs11_helper-version"
-    fi
-}
-
-download_mbedtls () {
-    if [ ! -f "download-cache/mbedtls-${MBEDTLS_VERSION}-apache.tgz" ]; then
-        wget -P download-cache/ \
-            "https://tls.mbed.org/download/mbedtls-${MBEDTLS_VERSION}-apache.tgz"
-    fi
-}
-
-build_mbedtls () {
-    if [ "$(cat ${PREFIX}/.mbedtls-version)" != "${MBEDTLS_VERSION}" ]; then
-        tar zxf download-cache/mbedtls-${MBEDTLS_VERSION}-apache.tgz
-        (
-            cd "mbedtls-${MBEDTLS_VERSION}"
-            make
-            make install DESTDIR="${PREFIX}"
-        )
-        echo "${MBEDTLS_VERSION}" > "${PREFIX}/.mbedtls-version"
-    fi
-}
-
-download_openssl () {
-    if [ ! -f "download-cache/openssl-${OPENSSL_VERSION}.tar.gz" ]; then
-        MAJOR=`echo $OPENSSL_VERSION | sed -e 's/\([0-9.]*\).*/\1/'`
-        wget -P download-cache/ \
-             "https://www.openssl.org/source/old/${MAJOR}/openssl-${OPENSSL_VERSION}.tar.gz"
-    fi
-}
-
-build_openssl_linux () {
-    (
-        cd "openssl-${OPENSSL_VERSION}/"
-        ./config shared --prefix="${PREFIX}" --openssldir="${PREFIX}" -DPURIFY
-        make all install_sw
-    )
-}
-
-build_openssl_osx () {
-    (
-        cd "openssl-${OPENSSL_VERSION}/"
-        ./Configure darwin64-x86_64-cc shared \
-            --prefix="${PREFIX}" --openssldir="${PREFIX}" -DPURIFY
-        make depend all install_sw
-    )
-}
-
-build_openssl_mingw () {
-    (
-        cd "openssl-${OPENSSL_VERSION}/"
-
-        if [ "${CHOST}" = "i686-w64-mingw32" ]; then
-            export TARGET=mingw
-        elif [ "${CHOST}" = "x86_64-w64-mingw32" ]; then
-            export TARGET=mingw64
-        fi
-
-        ./Configure --cross-compile-prefix=${CHOST}- shared \
-           ${TARGET} no-capieng --prefix="${PREFIX}" --openssldir="${PREFIX}" -static-libgcc
-        make install
-    )
-}
-
-build_openssl () {
-    if [ "$(cat ${PREFIX}/.openssl-version)" != "${OPENSSL_VERSION}" ]; then
-        tar zxf "download-cache/openssl-${OPENSSL_VERSION}.tar.gz"
-        if [ ! -z ${CHOST+x} ]; then
-            build_openssl_mingw
-        elif [ "${TRAVIS_OS_NAME}" = "osx" ]; then
-            build_openssl_osx
-        elif [ "${TRAVIS_OS_NAME}" = "linux" ]; then
-            build_openssl_linux
-        fi
-        echo "${OPENSSL_VERSION}" > "${PREFIX}/.openssl-version"
-    fi
-}
-
-# Download and build crypto lib
-if [ "${SSLLIB}" = "openssl" ]; then
-    download_openssl
-    build_openssl
-elif [ "${SSLLIB}" = "mbedtls" ]; then
-    download_mbedtls
-    build_mbedtls
-else
-    echo "Invalid crypto lib: ${SSLLIB}"
-    exit 1
-fi
-
-# Download and build dependencies for mingw cross build
-# dependencies are the same as in regular windows installer build
-if [ ! -z ${CHOST+x} ]; then
-      download_tap_windows
-      unzip download-cache/tap-windows-${TAP_WINDOWS_VERSION}.zip
-
-      download_lzo
-      build_lzo
-
-      download_pkcs11_helper
-      build_pkcs11_helper
-fi
diff --git a/.travis/coverity.sh b/.travis/coverity.sh
deleted file mode 100755
index 8bb40f4..0000000
--- a/.travis/coverity.sh
+++ /dev/null
@@ -1,17 +0,0 @@
-#!/bin/sh
-set -eu
-
-RUN_COVERITY="${RUN_COVERITY:-0}"
-
-export COVERITY_SCAN_PROJECT_NAME="OpenVPN/openvpn"
-export COVERITY_SCAN_BRANCH_PATTERN="release\/2.4"
-export COVERITY_SCAN_NOTIFICATION_EMAIL="scan-reports@openvpn.net"
-export COVERITY_SCAN_BUILD_COMMAND_PREPEND="autoreconf -vi && ./configure --enable-iproute2 && make clean"
-export COVERITY_SCAN_BUILD_COMMAND="make"
-
-if [ "${RUN_COVERITY}" = "1" ]; then
-    # Ignore exit code, script exits with 1 if we're not on the right branch
-    curl -s "https://scan.coverity.com/scripts/travisci_build_coverity_scan.sh" | bash || true
-else
-    echo "Skipping coverity scan because \$RUN_COVERITY != \"1\""
-fi
diff --git a/CONTRIBUTING.rst b/CONTRIBUTING.rst
deleted file mode 100644
index f87293c..0000000
--- a/CONTRIBUTING.rst
+++ /dev/null
@@ -1,34 +0,0 @@
-CONTRIBUTING TO THE OPENVPN PROJECT
-===================================
-
-Patches should be written against the Git "master" branch. Some patches may get
-backported to a release branch.
-
-The preferred procedure to send patches to the "openvpn-devel" mailing list:
-
-- https://lists.sourceforge.net/lists/listinfo/openvpn-devel
-
-While we do not merge GitHub pull requests as-is, we do allow their use for code
-review purposes. After the patch has been ACKed (reviewed and accepted), it must
-be sent to the mailing list. This last step does not necessarily need to be done
-by the patch author, although that is definitely recommended.
-
-When sending patches to "openvpn-devel" the subject line should be prefixed with
-[PATCH]. To avoid merging issues the patches should be generated with
-git-format-patch or sent using git-send-email. Try to split large patches into
-small, atomic pieces to make reviews easier.
-
-If you want quick feedback on a patch before sending it to openvpn-devel mailing
-list, you can visit the #openvpn-devel channel on irc.freenode.net. Note that
-you need to be logged in to Freenode to join the channel:
-
-- http://freenode.net/faq.shtml#nicksetup
-
-More detailed contribution instructions are available here:
-
-- https://community.openvpn.net/openvpn/wiki/DeveloperDocumentation
-
-Note that the process for contributing to other OpenVPN projects such as
-openvpn-build, openvpn-gui, tap-windows6 and easy-rsa may differ from what was
-described above. Please refer to the contribution instructions of each
-respective project.
diff --git a/ChangeLog b/ChangeLog
index ea1e930..f516b5a 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,6 +1,34 @@
 OpenVPN Change Log
 Copyright (C) 2002-2020 OpenVPN Inc <sales@openvpn.net>
 
+2020.08.31 -- Version 2.5_beta3
+
+Arne Schwabe (1):
+      Fix client NCP OCC fallback when server and client cipher are identical
+
+2020.08.26 -- Version 2.5_beta2
+
+Arne Schwabe (1):
+      Fix client's poor man NCP fallback
+
+Eric Thorpe (1):
+      Fixes a bug in management_callback_send_cc_message, should be strlen instead of sizeof
+
+Gert Doering (2):
+      Fix stack overflow in OpenSolaris NEXTADDR()
+      Workaround FreeBSD 12+ race condition on tun/tap open with IPv6.
+
+Lev Stipakov (1):
+      tun.c: enable using wintun driver under SYSTEM
+
+Magnus Kroken (2):
+      doc: fix typos in cipher-negotiation.rst
+      Changes.rst: fix mistyped option names
+
+Selva Nair (1):
+      Improve the documentation for --dhcp-option
+
+
 2020.08.12 -- Version 2.5_beta1
 
 Adam Ciarcin?ski (1):
diff --git a/Changes.rst b/Changes.rst
index 0aee360..f67e1d7 100644
--- a/Changes.rst
+++ b/Changes.rst
@@ -34,7 +34,7 @@ Improved Data channel cipher negotiation
 Removal of BF-CBC support in default configuration:
     By default OpenVPN 2.5 will only accept AES-256-GCM and AES-128-GCM as
     data ciphers. OpenVPN 2.4 allows AES-256-GCM,AES-128-GCM and BF-CBC when
-    no --cipher and --ncp-cipher options are present. Accepting BF-CBC can be
+    no --cipher and --ncp-ciphers options are present. Accepting BF-CBC can be
     enabled by adding
 
         data-ciphers AES-256-GCM:AES-128-GCM:BF-CBC
@@ -101,7 +101,7 @@ Linux VRF support
 TLS 1.3 support
     TLS 1.3 support has been added to OpenVPN.  Currently, this requires
     OpenSSL 1.1.1+.
-    The options ``--tls-cipher-suites`` and ``--tls-groups`` have been
+    The options ``--tls-ciphersuites`` and ``--tls-groups`` have been
     added to fine tune TLS protocol options.  Most of the improvements
     were also backported to OpenVPN 2.4 as part of the maintainance
     releases.
@@ -112,7 +112,7 @@ Support setting DHCP search domain
     wintun support yet).  Other platforms need to support this via ``--up``
     script (Linux) or GUI (OSX/Tunnelblick).
 
-per-client changing of ``--data-cipher`` or ``data-ciphers-fallback``
+per-client changing of ``--data-ciphers`` or ``data-ciphers-fallback``
     from client-connect script/dir (NOTE: this only changes preference of
     ciphers for NCP, but can not override what the client announces as
     "willing to accept")
@@ -213,9 +213,9 @@ User-visible Changes
   the client configuration almost immediately as result of the
   faster connection setup feature.
 
-- ``--compression`` is nowadays considered risky, because attacks exist
+- ``--compress`` is nowadays considered risky, because attacks exist
   leveraging compression-inside-crypto to reveal plaintext (VORACLE).  So
-  by default, ``--compression xxx`` will now accept incoming compressed
+  by default, ``--compress xxx`` will now accept incoming compressed
   packets (for compatibility with peers that have not been upgraded yet),
   but will not use compression outgoing packets.  This can be controlled with
   the new option ``--allow-compression yes|no|asym``.
diff --git a/Makefile.in b/Makefile.in
new file mode 100644
index 0000000..675d4e3
--- /dev/null
+++ b/Makefile.in
@@ -0,0 +1,1060 @@
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+
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+
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+#             over a single UDP port, with support for SSL/TLS-based
+#             session authentication and key exchange,
+#             packet encryption, packet authentication, and
+#             packet compression.
+#
+#  Copyright (C) 2002-2018 OpenVPN Inc <sales@openvpn.net>
+#  Copyright (C) 2010      David Sommerseth <dazo@users.sourceforge.net>
+#  Copyright (C) 2006-2012 Alon Bar-Lev <alon.barlev@gmail.com>
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+	$(MAKE) $(AM_MAKEFLAGS) all-recursive
+
+.SUFFIXES:
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+	@for dep in $?; do \
+	  case '$(am__configure_deps)' in \
+	    *$$dep*) \
+	      echo ' cd $(srcdir) && $(AUTOMAKE) --foreign'; \
+	      $(am__cd) $(srcdir) && $(AUTOMAKE) --foreign \
+		&& exit 0; \
+	      exit 1;; \
+	  esac; \
+	done; \
+	echo ' cd $(top_srcdir) && $(AUTOMAKE) --foreign Makefile'; \
+	$(am__cd) $(top_srcdir) && \
+	  $(AUTOMAKE) --foreign Makefile
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+	  *) \
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+	  echo " $(MKDIR_P) '$(DESTDIR)$(docdir)'"; \
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+	  echo " $(MKDIR_P) '$(DESTDIR)$(rootdir)'"; \
+	  $(MKDIR_P) "$(DESTDIR)$(rootdir)" || exit 1; \
+	fi; \
+	for p in $$list; do \
+	  if test -f "$$p"; then d=; else d="$(srcdir)/"; fi; \
+	  echo "$$d$$p"; \
+	done | $(am__base_list) | \
+	while read files; do \
+	  echo " $(INSTALL_DATA) $$files '$(DESTDIR)$(rootdir)'"; \
+	  $(INSTALL_DATA) $$files "$(DESTDIR)$(rootdir)" || exit $$?; \
+	done
+
+uninstall-rootDATA:
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+	@list='$(root_DATA)'; test -n "$(rootdir)" || list=; \
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+	dir='$(DESTDIR)$(rootdir)'; $(am__uninstall_files_from_dir)
+
+# This directory's subdirectories are mostly independent; you can cd
+# into them and run 'make' without going through this Makefile.
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+# (1) if the variable is set in 'config.status', edit 'config.status'
+#     (which will cause the Makefiles to be regenerated when you run 'make');
+# (2) otherwise, pass the desired values on the 'make' command line.
+$(am__recursive_targets):
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+	if $(am__make_keepgoing); then \
+	  failcom='fail=yes'; \
+	else \
+	  failcom='exit 1'; \
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+	dot_seen=no; \
+	target=`echo $@ | sed s/-recursive//`; \
+	case "$@" in \
+	  distclean-* | maintainer-clean-*) list='$(DIST_SUBDIRS)' ;; \
+	  *) list='$(SUBDIRS)' ;; \
+	esac; \
+	for subdir in $$list; do \
+	  echo "Making $$target in $$subdir"; \
+	  if test "$$subdir" = "."; then \
+	    dot_seen=yes; \
+	    local_target="$$target-am"; \
+	  else \
+	    local_target="$$target"; \
+	  fi; \
+	  ($(am__cd) $$subdir && $(MAKE) $(AM_MAKEFLAGS) $$local_target) \
+	  || eval $$failcom; \
+	done; \
+	if test "$$dot_seen" = "no"; then \
+	  $(MAKE) $(AM_MAKEFLAGS) "$$target-am" || exit 1; \
+	fi; test -z "$$fail"
+
+ID: $(am__tagged_files)
+	$(am__define_uniq_tagged_files); mkid -fID $$unique
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+	set x; \
+	here=`pwd`; \
+	if ($(ETAGS) --etags-include --version) >/dev/null 2>&1; then \
+	  include_option=--etags-include; \
+	  empty_fix=.; \
+	else \
+	  include_option=--include; \
+	  empty_fix=; \
+	fi; \
+	list='$(SUBDIRS)'; for subdir in $$list; do \
+	  if test "$$subdir" = .; then :; else \
+	    test ! -f $$subdir/TAGS || \
+	      set "$$@" "$$include_option=$$here/$$subdir/TAGS"; \
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+	done; \
+	$(am__define_uniq_tagged_files); \
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+	  if test $$# -gt 0; then \
+	    $(ETAGS) $(ETAGSFLAGS) $(AM_ETAGSFLAGS) $(ETAGS_ARGS) \
+	      "$$@" $$unique; \
+	  else \
+	    $(ETAGS) $(ETAGSFLAGS) $(AM_ETAGSFLAGS) $(ETAGS_ARGS) \
+	      $$unique; \
+	  fi; \
+	fi
+ctags: ctags-recursive
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+	     $$unique
+
+GTAGS:
+	here=`$(am__cd) $(top_builddir) && pwd` \
+	  && $(am__cd) $(top_srcdir) \
+	  && gtags -i $(GTAGS_ARGS) "$$here"
+cscope: cscope.files
+	test ! -s cscope.files \
+	  || $(CSCOPE) -b -q $(AM_CSCOPEFLAGS) $(CSCOPEFLAGS) -i cscope.files $(CSCOPE_ARGS)
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+cscopelist-am: $(am__tagged_files)
+	list='$(am__tagged_files)'; \
+	case "$(srcdir)" in \
+	  [\\/]* | ?:[\\/]*) sdir="$(srcdir)" ;; \
+	  *) sdir=$(subdir)/$(srcdir) ;; \
+	esac; \
+	for i in $$list; do \
+	  if test -f "$$i"; then \
+	    echo "$(subdir)/$$i"; \
+	  else \
+	    echo "$$sdir/$$i"; \
+	  fi; \
+	done >> $(top_builddir)/cscope.files
+
+distclean-tags:
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+	-rm -f cscope.out cscope.in.out cscope.po.out cscope.files
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+distdir: $(BUILT_SOURCES)
+	$(MAKE) $(AM_MAKEFLAGS) distdir-am
+
+distdir-am: $(DISTFILES)
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+	list='$(DISTFILES)'; \
+	  dist_files=`for file in $$list; do echo $$file; done | \
+	  sed -e "s|^$$srcdirstrip/||;t" \
+	      -e "s|^$$topsrcdirstrip/|$(top_builddir)/|;t"`; \
+	case $$dist_files in \
+	  */*) $(MKDIR_P) `echo "$$dist_files" | \
+			   sed '/\//!d;s|^|$(distdir)/|;s,/[^/]*$$,,' | \
+			   sort -u` ;; \
+	esac; \
+	for file in $$dist_files; do \
+	  if test -f $$file || test -d $$file; then d=.; else d=$(srcdir); fi; \
+	  if test -d $$d/$$file; then \
+	    dir=`echo "/$$file" | sed -e 's,/[^/]*$$,,'`; \
+	    if test -d "$(distdir)/$$file"; then \
+	      find "$(distdir)/$$file" -type d ! -perm -700 -exec chmod u+rwx {} \;; \
+	    fi; \
+	    if test -d $(srcdir)/$$file && test $$d != $(srcdir); then \
+	      cp -fpR $(srcdir)/$$file "$(distdir)$$dir" || exit 1; \
+	      find "$(distdir)/$$file" -type d ! -perm -700 -exec chmod u+rwx {} \;; \
+	    fi; \
+	    cp -fpR $$d/$$file "$(distdir)$$dir" || exit 1; \
+	  else \
+	    test -f "$(distdir)/$$file" \
+	    || cp -p $$d/$$file "$(distdir)/$$file" \
+	    || exit 1; \
+	  fi; \
+	done
+	@list='$(DIST_SUBDIRS)'; for subdir in $$list; do \
+	  if test "$$subdir" = .; then :; else \
+	    $(am__make_dryrun) \
+	      || test -d "$(distdir)/$$subdir" \
+	      || $(MKDIR_P) "$(distdir)/$$subdir" \
+	      || exit 1; \
+	    dir1=$$subdir; dir2="$(distdir)/$$subdir"; \
+	    $(am__relativize); \
+	    new_distdir=$$reldir; \
+	    dir1=$$subdir; dir2="$(top_distdir)"; \
+	    $(am__relativize); \
+	    new_top_distdir=$$reldir; \
+	    echo " (cd $$subdir && $(MAKE) $(AM_MAKEFLAGS) top_distdir="$$new_top_distdir" distdir="$$new_distdir" \\"; \
+	    echo "     am__remove_distdir=: am__skip_length_check=: am__skip_mode_fix=: distdir)"; \
+	    ($(am__cd) $$subdir && \
+	      $(MAKE) $(AM_MAKEFLAGS) \
+	        top_distdir="$$new_top_distdir" \
+	        distdir="$$new_distdir" \
+		am__remove_distdir=: \
+		am__skip_length_check=: \
+		am__skip_mode_fix=: \
+	        distdir) \
+	      || exit 1; \
+	  fi; \
+	done
+	-test -n "$(am__skip_mode_fix)" \
+	|| find "$(distdir)" -type d ! -perm -755 \
+		-exec chmod u+rwx,go+rx {} \; -o \
+	  ! -type d ! -perm -444 -links 1 -exec chmod a+r {} \; -o \
+	  ! -type d ! -perm -400 -exec chmod a+r {} \; -o \
+	  ! -type d ! -perm -444 -exec $(install_sh) -c -m a+r {} {} \; \
+	|| chmod -R a+r "$(distdir)"
+dist-gzip: distdir
+	tardir=$(distdir) && $(am__tar) | eval GZIP= gzip $(GZIP_ENV) -c >$(distdir).tar.gz
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+dist-bzip2: distdir
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+	$(am__post_remove_distdir)
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+dist-lzip: distdir
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+	$(am__post_remove_distdir)
+
+dist-tarZ: distdir
+	@echo WARNING: "Support for distribution archives compressed with" \
+		       "legacy program 'compress' is deprecated." >&2
+	@echo WARNING: "It will be removed altogether in Automake 2.0" >&2
+	tardir=$(distdir) && $(am__tar) | compress -c >$(distdir).tar.Z
+	$(am__post_remove_distdir)
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+dist-shar: distdir
+	@echo WARNING: "Support for shar distribution archives is" \
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+	@echo WARNING: "It will be removed altogether in Automake 2.0" >&2
+	shar $(distdir) | eval GZIP= gzip $(GZIP_ENV) -c >$(distdir).shar.gz
+	$(am__post_remove_distdir)
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+dist-zip: distdir
+	-rm -f $(distdir).zip
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+	$(am__post_remove_distdir)
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+dist dist-all:
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+	$(am__post_remove_distdir)
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+# This target untars the dist file and tries a VPATH configuration.  Then
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+# tarfile.
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+	case '$(DIST_ARCHIVES)' in \
+	*.tar.gz*) \
+	  eval GZIP= gzip $(GZIP_ENV) -dc $(distdir).tar.gz | $(am__untar) ;;\
+	*.tar.bz2*) \
+	  bzip2 -dc $(distdir).tar.bz2 | $(am__untar) ;;\
+	*.tar.lz*) \
+	  lzip -dc $(distdir).tar.lz | $(am__untar) ;;\
+	*.tar.xz*) \
+	  xz -dc $(distdir).tar.xz | $(am__untar) ;;\
+	*.tar.Z*) \
+	  uncompress -c $(distdir).tar.Z | $(am__untar) ;;\
+	*.shar.gz*) \
+	  eval GZIP= gzip $(GZIP_ENV) -dc $(distdir).shar.gz | unshar ;;\
+	*.zip*) \
+	  unzip $(distdir).zip ;;\
+	esac
+	chmod -R a-w $(distdir)
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+	chmod a-w $(distdir)
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+	dc_install_base=`$(am__cd) $(distdir)/_inst && pwd | sed -e 's,^[^:\\/]:[\\/],/,'` \
+	  && dc_destdir="$${TMPDIR-/tmp}/am-dc-$$$$/" \
+	  && am__cwd=`pwd` \
+	  && $(am__cd) $(distdir)/_build/sub \
+	  && ../../configure \
+	    $(AM_DISTCHECK_CONFIGURE_FLAGS) \
+	    $(DISTCHECK_CONFIGURE_FLAGS) \
+	    --srcdir=../.. --prefix="$$dc_install_base" \
+	  && $(MAKE) $(AM_MAKEFLAGS) \
+	  && $(MAKE) $(AM_MAKEFLAGS) dvi \
+	  && $(MAKE) $(AM_MAKEFLAGS) check \
+	  && $(MAKE) $(AM_MAKEFLAGS) install \
+	  && $(MAKE) $(AM_MAKEFLAGS) installcheck \
+	  && $(MAKE) $(AM_MAKEFLAGS) uninstall \
+	  && $(MAKE) $(AM_MAKEFLAGS) distuninstallcheck_dir="$$dc_install_base" \
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+	  && chmod -R a-w "$$dc_install_base" \
+	  && ({ \
+	       (cd ../.. && umask 077 && mkdir "$$dc_destdir") \
+	       && $(MAKE) $(AM_MAKEFLAGS) DESTDIR="$$dc_destdir" install \
+	       && $(MAKE) $(AM_MAKEFLAGS) DESTDIR="$$dc_destdir" uninstall \
+	       && $(MAKE) $(AM_MAKEFLAGS) DESTDIR="$$dc_destdir" \
+	            distuninstallcheck_dir="$$dc_destdir" distuninstallcheck; \
+	      } || { rm -rf "$$dc_destdir"; exit 1; }) \
+	  && rm -rf "$$dc_destdir" \
+	  && $(MAKE) $(AM_MAKEFLAGS) dist \
+	  && rm -rf $(DIST_ARCHIVES) \
+	  && $(MAKE) $(AM_MAKEFLAGS) distcleancheck \
+	  && cd "$$am__cwd" \
+	  || exit 1
+	$(am__post_remove_distdir)
+	@(echo "$(distdir) archives ready for distribution: "; \
+	  list='$(DIST_ARCHIVES)'; for i in $$list; do echo $$i; done) | \
+	  sed -e 1h -e 1s/./=/g -e 1p -e 1x -e '$$p' -e '$$x'
+distuninstallcheck:
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+	  echo 'ERROR: trying to run $@ with an empty' \
+	       '$$(distuninstallcheck_dir)' >&2; \
+	  exit 1; \
+	}; \
+	$(am__cd) '$(distuninstallcheck_dir)' || { \
+	  echo 'ERROR: cannot chdir into $(distuninstallcheck_dir)' >&2; \
+	  exit 1; \
+	}; \
+	test `$(am__distuninstallcheck_listfiles) | wc -l` -eq 0 \
+	   || { echo "ERROR: files left after uninstall:" ; \
+	        if test -n "$(DESTDIR)"; then \
+	          echo "  (check DESTDIR support)"; \
+	        fi ; \
+	        $(distuninstallcheck_listfiles) ; \
+	        exit 1; } >&2
+distcleancheck: distclean
+	@if test '$(srcdir)' = . ; then \
+	  echo "ERROR: distcleancheck can only run from a VPATH build" ; \
+	  exit 1 ; \
+	fi
+	@test `$(distcleancheck_listfiles) | wc -l` -eq 0 \
+	  || { echo "ERROR: files left in build directory after distclean:" ; \
+	       $(distcleancheck_listfiles) ; \
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+check-am: all-am
+check: $(BUILT_SOURCES)
+	$(MAKE) $(AM_MAKEFLAGS) check-recursive
+all-am: Makefile $(DATA) $(HEADERS) config.h
+installdirs: installdirs-recursive
+installdirs-am:
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+	  test -z "$$dir" || $(MKDIR_P) "$$dir"; \
+	done
+install: $(BUILT_SOURCES)
+	$(MAKE) $(AM_MAKEFLAGS) install-recursive
+install-exec: install-exec-recursive
+install-data: install-data-recursive
+uninstall: uninstall-recursive
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+install-am: all-am
+	@$(MAKE) $(AM_MAKEFLAGS) install-exec-am install-data-am
+
+installcheck: installcheck-recursive
+install-strip:
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+	  $(MAKE) $(AM_MAKEFLAGS) INSTALL_PROGRAM="$(INSTALL_STRIP_PROGRAM)" \
+	    install_sh_PROGRAM="$(INSTALL_STRIP_PROGRAM)" INSTALL_STRIP_FLAG=-s \
+	      install; \
+	else \
+	  $(MAKE) $(AM_MAKEFLAGS) INSTALL_PROGRAM="$(INSTALL_STRIP_PROGRAM)" \
+	    install_sh_PROGRAM="$(INSTALL_STRIP_PROGRAM)" INSTALL_STRIP_FLAG=-s \
+	    "INSTALL_PROGRAM_ENV=STRIPPROG='$(STRIP)'" install; \
+	fi
+mostlyclean-generic:
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+clean-generic:
+	-test -z "$(CLEANFILES)" || rm -f $(CLEANFILES)
+
+distclean-generic:
+	-test -z "$(CONFIG_CLEAN_FILES)" || rm -f $(CONFIG_CLEAN_FILES)
+	-test . = "$(srcdir)" || test -z "$(CONFIG_CLEAN_VPATH_FILES)" || rm -f $(CONFIG_CLEAN_VPATH_FILES)
+
+maintainer-clean-generic:
+	@echo "This command is intended for maintainers to use"
+	@echo "it deletes files that may require special tools to rebuild."
+	-test -z "$(BUILT_SOURCES)" || rm -f $(BUILT_SOURCES)
+	-test -z "$(MAINTAINERCLEANFILES)" || rm -f $(MAINTAINERCLEANFILES)
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+distclean: distclean-recursive
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+maintainer-clean: maintainer-clean-recursive
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+	maintainer-clean maintainer-clean-generic mostlyclean \
+	mostlyclean-generic mostlyclean-libtool pdf pdf-am ps ps-am \
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+	uninstall-rootDATA
+
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+
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+
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+	CONFIGURE_GIT_UNCOMMITTED="`GIT_DIR=\"$(top_srcdir)/.git\" $(GIT) diff-index --cached  --quiet --ignore-submodules HEAD || echo \"*\"`"; \
+	CONFIGURE_GIT_REVISION="`GIT_DIR=\"$(top_srcdir)/.git\" $(GIT) rev-parse --symbolic-full-name HEAD | cut -d/ -f3-`/`GIT_DIR=\"$(top_srcdir)/.git\" $(GIT) rev-parse --short=16 HEAD`"; \
+	echo "#define CONFIGURE_GIT_REVISION \"$${CONFIGURE_GIT_REVISION}\"" > config-version.h.tmp; \
+	echo "#define CONFIGURE_GIT_FLAGS \"$${CONFIGURE_GIT_CHFILES}$${CONFIGURE_GIT_UNCOMMITTED}\"" >> config-version.h.tmp
+
+	@if ! [ -f config-version.h ] || ! cmp -s config-version.h.tmp config-version.h; then \
+		echo "replacing config-version.h"; \
+		mv config-version.h.tmp config-version.h; \
+	else \
+		rm -f config-version.h.tmp; \
+	fi
+
+doxygen:
+	$(MAKE) -C doc/doxygen doxygen
+
+# Tell versions [3.59,3.63) of GNU make to not export all variables.
+# Otherwise a system limit (for SysV at least) may be exceeded.
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diff --git a/README.ec b/README.ec
deleted file mode 100644
index 61f23b2..0000000
--- a/README.ec
+++ /dev/null
@@ -1,36 +0,0 @@
-Since 2.4.0, OpenVPN has official support for elliptic curve crypto. Elliptic
-curves are an alternative to RSA for asymmetric encryption.
-
-Elliptic curve crypto ('ECC') can be used for the ('TLS') control channel only
-in OpenVPN; the data channel (encrypting the actual network traffic) uses
-symmetric encryption. ECC can be used in TLS for authentication (ECDSA) and key
-exchange (ECDH).
-
-Key exchange (ECDH)
--------------------
-OpenVPN 2.4.0 and newer automatically initialize ECDH parameters. When ECDSA is
-used for authentication, the curve used for the server certificate will be used
-for ECDH too. When autodetection fails (e.g. when using RSA certificates)
-OpenVPN lets the crypto library decide if possible, or falls back to the
-secp384r1 curve. The list of groups/curves that the crypto library will choose
-from can be set with the --tls-groups <grouplist> option.
-
-An administrator can force an OpenVPN/OpenSSL server to use a specific curve
-using the --ecdh-curve <curvename> option with one of the curves listed as
-available by the --show-groups option. Clients will use the same curve as
-selected by the server.
-
-Note that not all curves listed by --show-groups are available for use with TLS;
-in that case connecting will fail with a 'no shared cipher' TLS error.
-
-Authentication (ECDSA)
-----------------------
-Since OpenVPN 2.4.0, using ECDSA certificates works 'out of the box'. Which
-specific curves and cipher suites are available depends on your version and
-configuration of the crypto library. The crypto library will automatically
-select a cipher suite for the TLS control channel.
-
-Support for generating an ECDSA certificate chain is available in EasyRSA (in
-spite of it's name) since EasyRSA 3.0. The parameters you're looking for are
-'--use-algo=ec' and '--curve=<curve_name>'. See the EasyRSA documentation for
-more details on generating ECDSA certificates.
diff --git a/aclocal.m4 b/aclocal.m4
new file mode 100644
index 0000000..2cc1c34
--- /dev/null
+++ b/aclocal.m4
@@ -0,0 +1,1144 @@
+# generated automatically by aclocal 1.16.1 -*- Autoconf -*-
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+# Copyright (C) 1996-2018 Free Software Foundation, Inc.
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+# This file is free software; the Free Software Foundation
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+# with or without modifications, as long as this notice is preserved.
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+m4_ifval([$2],
+[AC_DIAGNOSE([obsolete],
+             [$0: two- and three-arguments forms are deprecated.])
+m4_ifval([$3], [_AM_SET_OPTION([no-define])])dnl
+ AC_SUBST([PACKAGE], [$1])dnl
+ AC_SUBST([VERSION], [$2])],
+[_AM_SET_OPTIONS([$1])dnl
+dnl Diagnose old-style AC_INIT with new-style AM_AUTOMAKE_INIT.
+m4_if(
+  m4_ifdef([AC_PACKAGE_NAME], [ok]):m4_ifdef([AC_PACKAGE_VERSION], [ok]),
+  [ok:ok],,
+  [m4_fatal([AC_INIT should be called with package and version arguments])])dnl
+ AC_SUBST([PACKAGE], ['AC_PACKAGE_TARNAME'])dnl
+ AC_SUBST([VERSION], ['AC_PACKAGE_VERSION'])])dnl
+
+_AM_IF_OPTION([no-define],,
+[AC_DEFINE_UNQUOTED([PACKAGE], ["$PACKAGE"], [Name of package])
+ AC_DEFINE_UNQUOTED([VERSION], ["$VERSION"], [Version number of package])])dnl
+
+# Some tools Automake needs.
+AC_REQUIRE([AM_SANITY_CHECK])dnl
+AC_REQUIRE([AC_ARG_PROGRAM])dnl
+AM_MISSING_PROG([ACLOCAL], [aclocal-${am__api_version}])
+AM_MISSING_PROG([AUTOCONF], [autoconf])
+AM_MISSING_PROG([AUTOMAKE], [automake-${am__api_version}])
+AM_MISSING_PROG([AUTOHEADER], [autoheader])
+AM_MISSING_PROG([MAKEINFO], [makeinfo])
+AC_REQUIRE([AM_PROG_INSTALL_SH])dnl
+AC_REQUIRE([AM_PROG_INSTALL_STRIP])dnl
+AC_REQUIRE([AC_PROG_MKDIR_P])dnl
+# For better backward compatibility.  To be removed once Automake 1.9.x
+# dies out for good.  For more background, see:
+# <https://lists.gnu.org/archive/html/automake/2012-07/msg00001.html>
+# <https://lists.gnu.org/archive/html/automake/2012-07/msg00014.html>
+AC_SUBST([mkdir_p], ['$(MKDIR_P)'])
+# We need awk for the "check" target (and possibly the TAP driver).  The
+# system "awk" is bad on some platforms.
+AC_REQUIRE([AC_PROG_AWK])dnl
+AC_REQUIRE([AC_PROG_MAKE_SET])dnl
+AC_REQUIRE([AM_SET_LEADING_DOT])dnl
+_AM_IF_OPTION([tar-ustar], [_AM_PROG_TAR([ustar])],
+	      [_AM_IF_OPTION([tar-pax], [_AM_PROG_TAR([pax])],
+			     [_AM_PROG_TAR([v7])])])
+_AM_IF_OPTION([no-dependencies],,
+[AC_PROVIDE_IFELSE([AC_PROG_CC],
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+AC_PROVIDE_IFELSE([AC_PROG_CXX],
+		  [_AM_DEPENDENCIES([CXX])],
+		  [m4_define([AC_PROG_CXX],
+			     m4_defn([AC_PROG_CXX])[_AM_DEPENDENCIES([CXX])])])dnl
+AC_PROVIDE_IFELSE([AC_PROG_OBJC],
+		  [_AM_DEPENDENCIES([OBJC])],
+		  [m4_define([AC_PROG_OBJC],
+			     m4_defn([AC_PROG_OBJC])[_AM_DEPENDENCIES([OBJC])])])dnl
+AC_PROVIDE_IFELSE([AC_PROG_OBJCXX],
+		  [_AM_DEPENDENCIES([OBJCXX])],
+		  [m4_define([AC_PROG_OBJCXX],
+			     m4_defn([AC_PROG_OBJCXX])[_AM_DEPENDENCIES([OBJCXX])])])dnl
+])
+AC_REQUIRE([AM_SILENT_RULES])dnl
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+[m4_provide_if([_AM_COMPILER_EXEEXT],
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+# POSIX will say in a future version that running "rm -f" with no argument
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+# recipes.  So use an aggressive probe to check that the usage we want is
+# actually supported "in the wild" to an acceptable degree.
+# See automake bug#10828.
+# To make any issue more visible, cause the running configure to be aborted
+# by default if the 'rm' program in use doesn't match our expectations; the
+# user can still override this though.
+if rm -f && rm -fr && rm -rf; then : OK; else
+  cat >&2 <<'END'
+Oops!
+
+Your 'rm' program seems unable to run without file operands specified
+on the command line, even when the '-f' option is present.  This is contrary
+to the behaviour of most rm programs out there, and not conforming with
+the upcoming POSIX standard: <http://austingroupbugs.net/view.php?id=542>
+
+Please tell bug-automake@gnu.org about your system, including the value
+of your $PATH and any error possibly output before this message.  This
+can help us improve future automake versions.
+
+END
+  if test x"$ACCEPT_INFERIOR_RM_PROGRAM" = x"yes"; then
+    echo 'Configuration will proceed anyway, since you have set the' >&2
+    echo 'ACCEPT_INFERIOR_RM_PROGRAM variable to "yes"' >&2
+    echo >&2
+  else
+    cat >&2 <<'END'
+Aborting the configuration process, to ensure you take notice of the issue.
+
+You can download and install GNU coreutils to get an 'rm' implementation
+that behaves properly: <https://www.gnu.org/software/coreutils/>.
+
+If you want to complete the configuration process using your problematic
+'rm' anyway, export the environment variable ACCEPT_INFERIOR_RM_PROGRAM
+to "yes", and re-run configure.
+
+END
+    AC_MSG_ERROR([Your 'rm' program is bad, sorry.])
+  fi
+fi
+dnl The trailing newline in this macro's definition is deliberate, for
+dnl backward compatibility and to allow trailing 'dnl'-style comments
+dnl after the AM_INIT_AUTOMAKE invocation. See automake bug#16841.
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+
+dnl Hook into '_AC_COMPILER_EXEEXT' early to learn its expansion.  Do not
+dnl add the conditional right here, as _AC_COMPILER_EXEEXT may be further
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+# When config.status generates a header, we must update the stamp-h file.
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+# Autoconf calls _AC_AM_CONFIG_HEADER_HOOK (when defined) in the
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+# our stamp files there.
+AC_DEFUN([_AC_AM_CONFIG_HEADER_HOOK],
+[# Compute $1's index in $config_headers.
+_am_arg=$1
+_am_stamp_count=1
+for _am_header in $config_headers :; do
+  case $_am_header in
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+echo "timestamp for $_am_arg" >`AS_DIRNAME(["$_am_arg"])`/stamp-h[]$_am_stamp_count])
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+# Copyright (C) 2001-2018 Free Software Foundation, Inc.
+#
+# This file is free software; the Free Software Foundation
+# gives unlimited permission to copy and/or distribute it,
+# with or without modifications, as long as this notice is preserved.
+
+# AM_PROG_INSTALL_SH
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+# Define $install_sh.
+AC_DEFUN([AM_PROG_INSTALL_SH],
+[AC_REQUIRE([AM_AUX_DIR_EXPAND])dnl
+if test x"${install_sh+set}" != xset; then
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+    install_sh="\${SHELL} '$am_aux_dir/install-sh'" ;;
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+    install_sh="\${SHELL} $am_aux_dir/install-sh"
+  esac
+fi
+AC_SUBST([install_sh])])
+
+# Copyright (C) 2003-2018 Free Software Foundation, Inc.
+#
+# This file is free software; the Free Software Foundation
+# gives unlimited permission to copy and/or distribute it,
+# with or without modifications, as long as this notice is preserved.
+
+# Check whether the underlying file-system supports filenames
+# with a leading dot.  For instance MS-DOS doesn't.
+AC_DEFUN([AM_SET_LEADING_DOT],
+[rm -rf .tst 2>/dev/null
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+  am__leading_dot=.
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+  am__leading_dot=_
+fi
+rmdir .tst 2>/dev/null
+AC_SUBST([am__leading_dot])])
+
+# Check to see how 'make' treats includes.	            -*- Autoconf -*-
+
+# Copyright (C) 2001-2018 Free Software Foundation, Inc.
+#
+# This file is free software; the Free Software Foundation
+# gives unlimited permission to copy and/or distribute it,
+# with or without modifications, as long as this notice is preserved.
+
+# AM_MAKE_INCLUDE()
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+# Check whether make has an 'include' directive that can support all
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+AC_DEFUN([AM_MAKE_INCLUDE],
+[AC_MSG_CHECKING([whether ${MAKE-make} supports the include directive])
+cat > confinc.mk << 'END'
+am__doit:
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+am__include="#"
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+echo 'include confinc.mk # ignored' > confmf.GNU
+_am_result=no
+for s in GNU BSD; do
+  AM_RUN_LOG([${MAKE-make} -f confmf.$s && cat confinc.out])
+  AS_CASE([$?:`cat confinc.out 2>/dev/null`],
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+      [AS_CASE([$s],
+          [BSD], [am__include='.include' am__quote='"'],
+          [am__include='include' am__quote=''])])
+  if test "$am__include" != "#"; then
+    _am_result="yes ($s style)"
+    break
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+done
+rm -f confinc.* confmf.*
+AC_MSG_RESULT([${_am_result}])
+AC_SUBST([am__include])])
+AC_SUBST([am__quote])])
+
+# Fake the existence of programs that GNU maintainers use.  -*- Autoconf -*-
+
+# Copyright (C) 1997-2018 Free Software Foundation, Inc.
+#
+# This file is free software; the Free Software Foundation
+# gives unlimited permission to copy and/or distribute it,
+# with or without modifications, as long as this notice is preserved.
+
+# AM_MISSING_PROG(NAME, PROGRAM)
+# ------------------------------
+AC_DEFUN([AM_MISSING_PROG],
+[AC_REQUIRE([AM_MISSING_HAS_RUN])
+$1=${$1-"${am_missing_run}$2"}
+AC_SUBST($1)])
+
+# AM_MISSING_HAS_RUN
+# ------------------
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+AC_DEFUN([AM_MISSING_HAS_RUN],
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+    MISSING="\${SHELL} \"$am_aux_dir/missing\"" ;;
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+    MISSING="\${SHELL} $am_aux_dir/missing" ;;
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+# Use eval to expand $SHELL
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+  am_missing_run=
+  AC_MSG_WARN(['missing' script is too old or missing])
+fi
+])
+
+# Helper functions for option handling.                     -*- Autoconf -*-
+
+# Copyright (C) 2001-2018 Free Software Foundation, Inc.
+#
+# This file is free software; the Free Software Foundation
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+# with or without modifications, as long as this notice is preserved.
+
+# _AM_MANGLE_OPTION(NAME)
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+AC_DEFUN([_AM_MANGLE_OPTION],
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+# _AM_SET_OPTION(NAME)
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+AC_DEFUN([_AM_SET_OPTION],
+[m4_define(_AM_MANGLE_OPTION([$1]), [1])])
+
+# _AM_SET_OPTIONS(OPTIONS)
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+AC_DEFUN([_AM_SET_OPTIONS],
+[m4_foreach_w([_AM_Option], [$1], [_AM_SET_OPTION(_AM_Option)])])
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+# _AM_IF_OPTION(OPTION, IF-SET, [IF-NOT-SET])
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+AC_DEFUN([_AM_IF_OPTION],
+[m4_ifset(_AM_MANGLE_OPTION([$1]), [$2], [$3])])
+
+# Copyright (C) 1999-2018 Free Software Foundation, Inc.
+#
+# This file is free software; the Free Software Foundation
+# gives unlimited permission to copy and/or distribute it,
+# with or without modifications, as long as this notice is preserved.
+
+# _AM_PROG_CC_C_O
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+      break
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+   # FIXME: It is wrong to rewrite CC.
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+   # A longer-term fix would be to have automake use am__CC in this case,
+   # and then we could set am__CC="\$(top_srcdir)/compile \$(CC)"
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+AC_LANG_POP([C])])
+
+# For backward compatibility.
+AC_DEFUN_ONCE([AM_PROG_CC_C_O], [AC_REQUIRE([AC_PROG_CC])])
+
+# Copyright (C) 2001-2018 Free Software Foundation, Inc.
+#
+# This file is free software; the Free Software Foundation
+# gives unlimited permission to copy and/or distribute it,
+# with or without modifications, as long as this notice is preserved.
+
+# AM_RUN_LOG(COMMAND)
+# -------------------
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+AC_DEFUN([AM_RUN_LOG],
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+   echo "$as_me:$LINENO: \$? = $ac_status" >&AS_MESSAGE_LOG_FD
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+
+# Check to make sure that the build environment is sane.    -*- Autoconf -*-
+
+# Copyright (C) 1996-2018 Free Software Foundation, Inc.
+#
+# This file is free software; the Free Software Foundation
+# gives unlimited permission to copy and/or distribute it,
+# with or without modifications, as long as this notice is preserved.
+
+# AM_SANITY_CHECK
+# ---------------
+AC_DEFUN([AM_SANITY_CHECK],
+[AC_MSG_CHECKING([whether build environment is sane])
+# Reject unsafe characters in $srcdir or the absolute working directory
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+am_lf='
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+  *[[\\\"\#\$\&\'\`$am_lf]]*)
+    AC_MSG_ERROR([unsafe absolute working directory name]);;
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+case $srcdir in
+  *[[\\\"\#\$\&\'\`$am_lf\ \	]]*)
+    AC_MSG_ERROR([unsafe srcdir value: '$srcdir']);;
+esac
+
+# Do 'set' in a subshell so we don't clobber the current shell's
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+# symlink; some systems play weird games with the mod time of symlinks
+# (eg FreeBSD returns the mod time of the symlink's containing
+# directory).
+if (
+   am_has_slept=no
+   for am_try in 1 2; do
+     echo "timestamp, slept: $am_has_slept" > conftest.file
+     set X `ls -Lt "$srcdir/configure" conftest.file 2> /dev/null`
+     if test "$[*]" = "X"; then
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+	set X `ls -t "$srcdir/configure" conftest.file`
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+     if test "$[*]" != "X $srcdir/configure conftest.file" \
+	&& test "$[*]" != "X conftest.file $srcdir/configure"; then
+
+	# If neither matched, then we have a broken ls.  This can happen
+	# if, for instance, CONFIG_SHELL is bash and it inherits a
+	# broken ls alias from the environment.  This has actually
+	# happened.  Such a system could not be considered "sane".
+	AC_MSG_ERROR([ls -t appears to fail.  Make sure there is not a broken
+  alias in your environment])
+     fi
+     if test "$[2]" = conftest.file || test $am_try -eq 2; then
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+     # Just in case.
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+   AC_MSG_ERROR([newly created file is older than distributed files!
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+fi
+AC_MSG_RESULT([yes])
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+  [AC_MSG_CHECKING([that generated files are newer than configure])
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+   AC_MSG_RESULT([done])])
+rm -f conftest.file
+])
+
+# Copyright (C) 2009-2018 Free Software Foundation, Inc.
+#
+# This file is free software; the Free Software Foundation
+# gives unlimited permission to copy and/or distribute it,
+# with or without modifications, as long as this notice is preserved.
+
+# AM_SILENT_RULES([DEFAULT])
+# --------------------------
+# Enable less verbose build rules; with the default set to DEFAULT
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+AC_DEFUN([AM_SILENT_RULES],
+[AC_ARG_ENABLE([silent-rules], [dnl
+AS_HELP_STRING(
+  [--enable-silent-rules],
+  [less verbose build output (undo: "make V=1")])
+AS_HELP_STRING(
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+  [verbose build output (undo: "make V=0")])dnl
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+  yes) AM_DEFAULT_VERBOSITY=0;;
+   no) AM_DEFAULT_VERBOSITY=1;;
+    *) AM_DEFAULT_VERBOSITY=m4_if([$1], [yes], [0], [1]);;
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+dnl
+dnl A few 'make' implementations (e.g., NonStop OS and NextStep)
+dnl do not support nested variable expansions.
+dnl See automake bug#9928 and bug#10237.
+am_make=${MAKE-make}
+AC_CACHE_CHECK([whether $am_make supports nested variables],
+   [am_cv_make_support_nested_variables],
+   [if AS_ECHO([['TRUE=$(BAR$(V))
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+BAR1=true
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+	@$(TRUE)
+.PHONY: am__doit']]) | $am_make -f - >/dev/null 2>&1; then
+  am_cv_make_support_nested_variables=yes
+else
+  am_cv_make_support_nested_variables=no
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+if test $am_cv_make_support_nested_variables = yes; then
+  dnl Using '$V' instead of '$(V)' breaks IRIX make.
+  AM_V='$(V)'
+  AM_DEFAULT_V='$(AM_DEFAULT_VERBOSITY)'
+else
+  AM_V=$AM_DEFAULT_VERBOSITY
+  AM_DEFAULT_V=$AM_DEFAULT_VERBOSITY
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+AC_SUBST([AM_V])dnl
+AM_SUBST_NOTMAKE([AM_V])dnl
+AC_SUBST([AM_DEFAULT_V])dnl
+AM_SUBST_NOTMAKE([AM_DEFAULT_V])dnl
+AC_SUBST([AM_DEFAULT_VERBOSITY])dnl
+AM_BACKSLASH='\'
+AC_SUBST([AM_BACKSLASH])dnl
+_AM_SUBST_NOTMAKE([AM_BACKSLASH])dnl
+])
+
+# Copyright (C) 2001-2018 Free Software Foundation, Inc.
+#
+# This file is free software; the Free Software Foundation
+# gives unlimited permission to copy and/or distribute it,
+# with or without modifications, as long as this notice is preserved.
+
+# AM_PROG_INSTALL_STRIP
+# ---------------------
+# One issue with vendor 'install' (even GNU) is that you can't
+# specify the program used to strip binaries.  This is especially
+# annoying in cross-compiling environments, where the build's strip
+# is unlikely to handle the host's binaries.
+# Fortunately install-sh will honor a STRIPPROG variable, so we
+# always use install-sh in "make install-strip", and initialize
+# STRIPPROG with the value of the STRIP variable (set by the user).
+AC_DEFUN([AM_PROG_INSTALL_STRIP],
+[AC_REQUIRE([AM_PROG_INSTALL_SH])dnl
+# Installed binaries are usually stripped using 'strip' when the user
+# run "make install-strip".  However 'strip' might not be the right
+# tool to use in cross-compilation environments, therefore Automake
+# will honor the 'STRIP' environment variable to overrule this program.
+dnl Don't test for $cross_compiling = yes, because it might be 'maybe'.
+if test "$cross_compiling" != no; then
+  AC_CHECK_TOOL([STRIP], [strip], :)
+fi
+INSTALL_STRIP_PROGRAM="\$(install_sh) -c -s"
+AC_SUBST([INSTALL_STRIP_PROGRAM])])
+
+# Copyright (C) 2006-2018 Free Software Foundation, Inc.
+#
+# This file is free software; the Free Software Foundation
+# gives unlimited permission to copy and/or distribute it,
+# with or without modifications, as long as this notice is preserved.
+
+# _AM_SUBST_NOTMAKE(VARIABLE)
+# ---------------------------
+# Prevent Automake from outputting VARIABLE = @VARIABLE@ in Makefile.in.
+# This macro is traced by Automake.
+AC_DEFUN([_AM_SUBST_NOTMAKE])
+
+# AM_SUBST_NOTMAKE(VARIABLE)
+# --------------------------
+# Public sister of _AM_SUBST_NOTMAKE.
+AC_DEFUN([AM_SUBST_NOTMAKE], [_AM_SUBST_NOTMAKE($@)])
+
+# Check how to create a tarball.                            -*- Autoconf -*-
+
+# Copyright (C) 2004-2018 Free Software Foundation, Inc.
+#
+# This file is free software; the Free Software Foundation
+# gives unlimited permission to copy and/or distribute it,
+# with or without modifications, as long as this notice is preserved.
+
+# _AM_PROG_TAR(FORMAT)
+# --------------------
+# Check how to create a tarball in format FORMAT.
+# FORMAT should be one of 'v7', 'ustar', or 'pax'.
+#
+# Substitute a variable $(am__tar) that is a command
+# writing to stdout a FORMAT-tarball containing the directory
+# $tardir.
+#     tardir=directory && $(am__tar) > result.tar
+#
+# Substitute a variable $(am__untar) that extract such
+# a tarball read from stdin.
+#     $(am__untar) < result.tar
+#
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+[# Always define AMTAR for backward compatibility.  Yes, it's still used
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+_am_tools='gnutar m4_if([$1], [ustar], [plaintar]) pax cpio none'
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+m4_if([$1], [v7],
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+  [m4_case([$1],
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+        AC_MSG_RESULT([no])
+        _am_tools=none
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+
+  [pax],
+    [],
+
+  [m4_fatal([Unknown tar format])])
+
+  AC_MSG_CHECKING([how to create a $1 tar archive])
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+  # Go ahead even if we have the value already cached.  We do so because we
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+  _am_tools=${am_cv_prog_tar_$1-$_am_tools}
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+  for _am_tool in $_am_tools; do
+    case $_am_tool in
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+      done
+      am__tar="$_am_tar --format=m4_if([$1], [pax], [posix], [$1]) -chf - "'"$$tardir"'
+      am__tar_="$_am_tar --format=m4_if([$1], [pax], [posix], [$1]) -chf - "'"$tardir"'
+      am__untar="$_am_tar -xf -"
+      ;;
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+      # Must skip GNU tar: if it does not support --format= it doesn't create
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+  AC_CACHE_VAL([am_cv_prog_tar_$1], [am_cv_prog_tar_$1=$_am_tool])
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+AC_SUBST([am__tar])
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+]) # _AM_PROG_TAR
+
+m4_include([m4/ax_emptyarray.m4])
+m4_include([m4/ax_socklen_t.m4])
+m4_include([m4/ax_varargs.m4])
+m4_include([m4/libtool.m4])
+m4_include([m4/ltoptions.m4])
+m4_include([m4/ltsugar.m4])
+m4_include([m4/ltversion.m4])
+m4_include([m4/lt~obsolete.m4])
+m4_include([m4/pkg.m4])
diff --git a/build/Makefile.in b/build/Makefile.in
new file mode 100644
index 0000000..727a8d1
--- /dev/null
+++ b/build/Makefile.in
@@ -0,0 +1,705 @@
+# Makefile.in generated by automake 1.16.1 from Makefile.am.
+# @configure_input@
+
+# Copyright (C) 1994-2018 Free Software Foundation, Inc.
+
+# This Makefile.in is free software; the Free Software Foundation
+# gives unlimited permission to copy and/or distribute it,
+# with or without modifications, as long as this notice is preserved.
+
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY, to the extent permitted by law; without
+# even the implied warranty of MERCHANTABILITY or FITNESS FOR A
+# PARTICULAR PURPOSE.
+
+@SET_MAKE@
+
+#
+#  OpenVPN -- An application to securely tunnel IP networks
+#             over a single UDP port, with support for SSL/TLS-based
+#             session authentication and key exchange,
+#             packet encryption, packet authentication, and
+#             packet compression.
+#
+#  Copyright (C) 2002-2018 OpenVPN Inc <sales@openvpn.net>
+#
+VPATH = @srcdir@
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diff --git a/build/msvc/Makefile.in b/build/msvc/Makefile.in
new file mode 100644
index 0000000..c55b593
--- /dev/null
+++ b/build/msvc/Makefile.in
@@ -0,0 +1,703 @@
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+am__v_GEN_0 = @echo "  GEN     " $@;
+am__v_GEN_1 = 
+AM_V_at = $(am__v_at_@AM_V@)
+am__v_at_ = $(am__v_at_@AM_DEFAULT_V@)
+am__v_at_0 = @
+am__v_at_1 = 
+SOURCES =
+DIST_SOURCES =
+am__can_run_installinfo = \
+  case $$AM_UPDATE_INFO_DIR in \
+    n|no|NO) false;; \
+    *) (install-info --version) >/dev/null 2>&1;; \
+  esac
+DATA = $(dist_noinst_DATA)
+am__tagged_files = $(HEADERS) $(SOURCES) $(TAGS_FILES) $(LISP)
+am__DIST_COMMON = $(srcdir)/Makefile.in
+DISTFILES = $(DIST_COMMON) $(DIST_SOURCES) $(TEXINFOS) $(EXTRA_DIST)
+ACLOCAL = @ACLOCAL@
+AMTAR = @AMTAR@
+AM_DEFAULT_VERBOSITY = @AM_DEFAULT_VERBOSITY@
+AR = @AR@
+AS = @AS@
+AUTOCONF = @AUTOCONF@
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+AWK = @AWK@
+CC = @CC@
+CCDEPMODE = @CCDEPMODE@
+CFLAGS = @CFLAGS@
+CMOCKA_CFLAGS = @CMOCKA_CFLAGS@
+CMOCKA_LIBS = @CMOCKA_LIBS@
+CPP = @CPP@
+CPPFLAGS = @CPPFLAGS@
+CYGPATH_W = @CYGPATH_W@
+DEFS = @DEFS@
+DEPDIR = @DEPDIR@
+DLLTOOL = @DLLTOOL@
+DL_LIBS = @DL_LIBS@
+DSYMUTIL = @DSYMUTIL@
+DUMPBIN = @DUMPBIN@
+ECHO_C = @ECHO_C@
+ECHO_N = @ECHO_N@
+ECHO_T = @ECHO_T@
+EGREP = @EGREP@
+ENABLE_UNITTESTS = @ENABLE_UNITTESTS@
+EXEEXT = @EXEEXT@
+FGREP = @FGREP@
+GIT = @GIT@
+GREP = @GREP@
+IFCONFIG = @IFCONFIG@
+INSTALL = @INSTALL@
+INSTALL_DATA = @INSTALL_DATA@
+INSTALL_PROGRAM = @INSTALL_PROGRAM@
+INSTALL_SCRIPT = @INSTALL_SCRIPT@
+INSTALL_STRIP_PROGRAM = @INSTALL_STRIP_PROGRAM@
+IPROUTE = @IPROUTE@
+LD = @LD@
+LDFLAGS = @LDFLAGS@
+LIBOBJS = @LIBOBJS@
+LIBPAM_CFLAGS = @LIBPAM_CFLAGS@
+LIBPAM_LIBS = @LIBPAM_LIBS@
+LIBS = @LIBS@
+LIBTOOL = @LIBTOOL@
+LIPO = @LIPO@
+LN_S = @LN_S@
+LTLIBOBJS = @LTLIBOBJS@
+LT_SYS_LIBRARY_PATH = @LT_SYS_LIBRARY_PATH@
+LZ4_CFLAGS = @LZ4_CFLAGS@
+LZ4_LIBS = @LZ4_LIBS@
+LZO_CFLAGS = @LZO_CFLAGS@
+LZO_LIBS = @LZO_LIBS@
+MAKEINFO = @MAKEINFO@
+MANIFEST_TOOL = @MANIFEST_TOOL@
+MBEDTLS_CFLAGS = @MBEDTLS_CFLAGS@
+MBEDTLS_LIBS = @MBEDTLS_LIBS@
+MKDIR_P = @MKDIR_P@
+NETSTAT = @NETSTAT@
+NM = @NM@
+NMEDIT = @NMEDIT@
+OBJDUMP = @OBJDUMP@
+OBJEXT = @OBJEXT@
+OPENSSL_CFLAGS = @OPENSSL_CFLAGS@
+OPENSSL_LIBS = @OPENSSL_LIBS@
+OPENVPN_VERSION_MAJOR = @OPENVPN_VERSION_MAJOR@
+OPENVPN_VERSION_MINOR = @OPENVPN_VERSION_MINOR@
+OPENVPN_VERSION_PATCH = @OPENVPN_VERSION_PATCH@
+OPTIONAL_CRYPTO_CFLAGS = @OPTIONAL_CRYPTO_CFLAGS@
+OPTIONAL_CRYPTO_LIBS = @OPTIONAL_CRYPTO_LIBS@
+OPTIONAL_DL_LIBS = @OPTIONAL_DL_LIBS@
+OPTIONAL_INOTIFY_CFLAGS = @OPTIONAL_INOTIFY_CFLAGS@
+OPTIONAL_INOTIFY_LIBS = @OPTIONAL_INOTIFY_LIBS@
+OPTIONAL_LZ4_CFLAGS = @OPTIONAL_LZ4_CFLAGS@
+OPTIONAL_LZ4_LIBS = @OPTIONAL_LZ4_LIBS@
+OPTIONAL_LZO_CFLAGS = @OPTIONAL_LZO_CFLAGS@
+OPTIONAL_LZO_LIBS = @OPTIONAL_LZO_LIBS@
+OPTIONAL_PKCS11_HELPER_CFLAGS = @OPTIONAL_PKCS11_HELPER_CFLAGS@
+OPTIONAL_PKCS11_HELPER_LIBS = @OPTIONAL_PKCS11_HELPER_LIBS@
+OPTIONAL_SELINUX_LIBS = @OPTIONAL_SELINUX_LIBS@
+OPTIONAL_SYSTEMD_LIBS = @OPTIONAL_SYSTEMD_LIBS@
+OTOOL = @OTOOL@
+OTOOL64 = @OTOOL64@
+P11KIT_CFLAGS = @P11KIT_CFLAGS@
+P11KIT_LIBS = @P11KIT_LIBS@
+PACKAGE = @PACKAGE@
+PACKAGE_BUGREPORT = @PACKAGE_BUGREPORT@
+PACKAGE_NAME = @PACKAGE_NAME@
+PACKAGE_STRING = @PACKAGE_STRING@
+PACKAGE_TARNAME = @PACKAGE_TARNAME@
+PACKAGE_URL = @PACKAGE_URL@
+PACKAGE_VERSION = @PACKAGE_VERSION@
+PATH_SEPARATOR = @PATH_SEPARATOR@
+PKCS11_HELPER_CFLAGS = @PKCS11_HELPER_CFLAGS@
+PKCS11_HELPER_LIBS = @PKCS11_HELPER_LIBS@
+PKG_CONFIG = @PKG_CONFIG@
+PKG_CONFIG_LIBDIR = @PKG_CONFIG_LIBDIR@
+PKG_CONFIG_PATH = @PKG_CONFIG_PATH@
+PLUGINDIR = @PLUGINDIR@
+PLUGIN_AUTH_PAM_CFLAGS = @PLUGIN_AUTH_PAM_CFLAGS@
+PLUGIN_AUTH_PAM_LIBS = @PLUGIN_AUTH_PAM_LIBS@
+RANLIB = @RANLIB@
+RC = @RC@
+ROUTE = @ROUTE@
+RST2HTML = @RST2HTML@
+RST2MAN = @RST2MAN@
+SED = @SED@
+SELINUX_LIBS = @SELINUX_LIBS@
+SET_MAKE = @SET_MAKE@
+SHELL = @SHELL@
+SOCKETS_LIBS = @SOCKETS_LIBS@
+STRIP = @STRIP@
+SYSTEMD_ASK_PASSWORD = @SYSTEMD_ASK_PASSWORD@
+SYSTEMD_UNIT_DIR = @SYSTEMD_UNIT_DIR@
+TAP_CFLAGS = @TAP_CFLAGS@
+TAP_WIN_COMPONENT_ID = @TAP_WIN_COMPONENT_ID@
+TAP_WIN_MIN_MAJOR = @TAP_WIN_MIN_MAJOR@
+TAP_WIN_MIN_MINOR = @TAP_WIN_MIN_MINOR@
+TEST_CFLAGS = @TEST_CFLAGS@
+TEST_LDFLAGS = @TEST_LDFLAGS@
+TMPFILES_DIR = @TMPFILES_DIR@
+VERSION = @VERSION@
+abs_builddir = @abs_builddir@
+abs_srcdir = @abs_srcdir@
+abs_top_builddir = @abs_top_builddir@
+abs_top_srcdir = @abs_top_srcdir@
+ac_ct_AR = @ac_ct_AR@
+ac_ct_CC = @ac_ct_CC@
+ac_ct_DUMPBIN = @ac_ct_DUMPBIN@
+am__include = @am__include@
+am__leading_dot = @am__leading_dot@
+am__quote = @am__quote@
+am__tar = @am__tar@
+am__untar = @am__untar@
+bindir = @bindir@
+build = @build@
+build_alias = @build_alias@
+build_cpu = @build_cpu@
+build_os = @build_os@
+build_vendor = @build_vendor@
+builddir = @builddir@
+datadir = @datadir@
+datarootdir = @datarootdir@
+docdir = @docdir@
+dvidir = @dvidir@
+exec_prefix = @exec_prefix@
+host = @host@
+host_alias = @host_alias@
+host_cpu = @host_cpu@
+host_os = @host_os@
+host_vendor = @host_vendor@
+htmldir = @htmldir@
+includedir = @includedir@
+infodir = @infodir@
+install_sh = @install_sh@
+libdir = @libdir@
+libexecdir = @libexecdir@
+libsystemd_CFLAGS = @libsystemd_CFLAGS@
+libsystemd_LIBS = @libsystemd_LIBS@
+localedir = @localedir@
+localstatedir = @localstatedir@
+mandir = @mandir@
+mkdir_p = @mkdir_p@
+oldincludedir = @oldincludedir@
+pdfdir = @pdfdir@
+plugindir = @plugindir@
+prefix = @prefix@
+program_transform_name = @program_transform_name@
+psdir = @psdir@
+sampledir = @sampledir@
+sbindir = @sbindir@
+sharedstatedir = @sharedstatedir@
+srcdir = @srcdir@
+sysconfdir = @sysconfdir@
+systemdunitdir = @systemdunitdir@
+target_alias = @target_alias@
+tmpfilesdir = @tmpfilesdir@
+top_build_prefix = @top_build_prefix@
+top_builddir = @top_builddir@
+top_srcdir = @top_srcdir@
+MAINTAINERCLEANFILES = \
+	$(srcdir)/Makefile.in
+
+dist_noinst_DATA = \
+	msvc-generate.vcxproj \
+	Makefile.mak \
+	msvc-generate.js
+
+all: all-am
+
+.SUFFIXES:
+$(srcdir)/Makefile.in:  $(srcdir)/Makefile.am  $(am__configure_deps)
+	@for dep in $?; do \
+	  case '$(am__configure_deps)' in \
+	    *$$dep*) \
+	      ( cd $(top_builddir) && $(MAKE) $(AM_MAKEFLAGS) am--refresh ) \
+	        && { if test -f $@; then exit 0; else break; fi; }; \
+	      exit 1;; \
+	  esac; \
+	done; \
+	echo ' cd $(top_srcdir) && $(AUTOMAKE) --foreign build/msvc/msvc-generate/Makefile'; \
+	$(am__cd) $(top_srcdir) && \
+	  $(AUTOMAKE) --foreign build/msvc/msvc-generate/Makefile
+Makefile: $(srcdir)/Makefile.in $(top_builddir)/config.status
+	@case '$?' in \
+	  *config.status*) \
+	    cd $(top_builddir) && $(MAKE) $(AM_MAKEFLAGS) am--refresh;; \
+	  *) \
+	    echo ' cd $(top_builddir) && $(SHELL) ./config.status $(subdir)/$@ $(am__maybe_remake_depfiles)'; \
+	    cd $(top_builddir) && $(SHELL) ./config.status $(subdir)/$@ $(am__maybe_remake_depfiles);; \
+	esac;
+
+$(top_builddir)/config.status: $(top_srcdir)/configure $(CONFIG_STATUS_DEPENDENCIES)
+	cd $(top_builddir) && $(MAKE) $(AM_MAKEFLAGS) am--refresh
+
+$(top_srcdir)/configure:  $(am__configure_deps)
+	cd $(top_builddir) && $(MAKE) $(AM_MAKEFLAGS) am--refresh
+$(ACLOCAL_M4):  $(am__aclocal_m4_deps)
+	cd $(top_builddir) && $(MAKE) $(AM_MAKEFLAGS) am--refresh
+$(am__aclocal_m4_deps):
+
+mostlyclean-libtool:
+	-rm -f *.lo
+
+clean-libtool:
+	-rm -rf .libs _libs
+tags TAGS:
+
+ctags CTAGS:
+
+cscope cscopelist:
+
+
+distdir: $(BUILT_SOURCES)
+	$(MAKE) $(AM_MAKEFLAGS) distdir-am
+
+distdir-am: $(DISTFILES)
+	@srcdirstrip=`echo "$(srcdir)" | sed 's/[].[^$$\\*]/\\\\&/g'`; \
+	topsrcdirstrip=`echo "$(top_srcdir)" | sed 's/[].[^$$\\*]/\\\\&/g'`; \
+	list='$(DISTFILES)'; \
+	  dist_files=`for file in $$list; do echo $$file; done | \
+	  sed -e "s|^$$srcdirstrip/||;t" \
+	      -e "s|^$$topsrcdirstrip/|$(top_builddir)/|;t"`; \
+	case $$dist_files in \
+	  */*) $(MKDIR_P) `echo "$$dist_files" | \
+			   sed '/\//!d;s|^|$(distdir)/|;s,/[^/]*$$,,' | \
+			   sort -u` ;; \
+	esac; \
+	for file in $$dist_files; do \
+	  if test -f $$file || test -d $$file; then d=.; else d=$(srcdir); fi; \
+	  if test -d $$d/$$file; then \
+	    dir=`echo "/$$file" | sed -e 's,/[^/]*$$,,'`; \
+	    if test -d "$(distdir)/$$file"; then \
+	      find "$(distdir)/$$file" -type d ! -perm -700 -exec chmod u+rwx {} \;; \
+	    fi; \
+	    if test -d $(srcdir)/$$file && test $$d != $(srcdir); then \
+	      cp -fpR $(srcdir)/$$file "$(distdir)$$dir" || exit 1; \
+	      find "$(distdir)/$$file" -type d ! -perm -700 -exec chmod u+rwx {} \;; \
+	    fi; \
+	    cp -fpR $$d/$$file "$(distdir)$$dir" || exit 1; \
+	  else \
+	    test -f "$(distdir)/$$file" \
+	    || cp -p $$d/$$file "$(distdir)/$$file" \
+	    || exit 1; \
+	  fi; \
+	done
+check-am: all-am
+check: check-am
+all-am: Makefile $(DATA)
+installdirs:
+install: install-am
+install-exec: install-exec-am
+install-data: install-data-am
+uninstall: uninstall-am
+
+install-am: all-am
+	@$(MAKE) $(AM_MAKEFLAGS) install-exec-am install-data-am
+
+installcheck: installcheck-am
+install-strip:
+	if test -z '$(STRIP)'; then \
+	  $(MAKE) $(AM_MAKEFLAGS) INSTALL_PROGRAM="$(INSTALL_STRIP_PROGRAM)" \
+	    install_sh_PROGRAM="$(INSTALL_STRIP_PROGRAM)" INSTALL_STRIP_FLAG=-s \
+	      install; \
+	else \
+	  $(MAKE) $(AM_MAKEFLAGS) INSTALL_PROGRAM="$(INSTALL_STRIP_PROGRAM)" \
+	    install_sh_PROGRAM="$(INSTALL_STRIP_PROGRAM)" INSTALL_STRIP_FLAG=-s \
+	    "INSTALL_PROGRAM_ENV=STRIPPROG='$(STRIP)'" install; \
+	fi
+mostlyclean-generic:
+
+clean-generic:
+
+distclean-generic:
+	-test -z "$(CONFIG_CLEAN_FILES)" || rm -f $(CONFIG_CLEAN_FILES)
+	-test . = "$(srcdir)" || test -z "$(CONFIG_CLEAN_VPATH_FILES)" || rm -f $(CONFIG_CLEAN_VPATH_FILES)
+
+maintainer-clean-generic:
+	@echo "This command is intended for maintainers to use"
+	@echo "it deletes files that may require special tools to rebuild."
+	-test -z "$(MAINTAINERCLEANFILES)" || rm -f $(MAINTAINERCLEANFILES)
+clean: clean-am
+
+clean-am: clean-generic clean-libtool mostlyclean-am
+
+distclean: distclean-am
+	-rm -f Makefile
+distclean-am: clean-am distclean-generic
+
+dvi: dvi-am
+
+dvi-am:
+
+html: html-am
+
+html-am:
+
+info: info-am
+
+info-am:
+
+install-data-am:
+
+install-dvi: install-dvi-am
+
+install-dvi-am:
+
+install-exec-am:
+
+install-html: install-html-am
+
+install-html-am:
+
+install-info: install-info-am
+
+install-info-am:
+
+install-man:
+
+install-pdf: install-pdf-am
+
+install-pdf-am:
+
+install-ps: install-ps-am
+
+install-ps-am:
+
+installcheck-am:
+
+maintainer-clean: maintainer-clean-am
+	-rm -f Makefile
+maintainer-clean-am: distclean-am maintainer-clean-generic
+
+mostlyclean: mostlyclean-am
+
+mostlyclean-am: mostlyclean-generic mostlyclean-libtool
+
+pdf: pdf-am
+
+pdf-am:
+
+ps: ps-am
+
+ps-am:
+
+uninstall-am:
+
+.MAKE: install-am install-strip
+
+.PHONY: all all-am check check-am clean clean-generic clean-libtool \
+	cscopelist-am ctags-am distclean distclean-generic \
+	distclean-libtool distdir dvi dvi-am html html-am info info-am \
+	install install-am install-data install-data-am install-dvi \
+	install-dvi-am install-exec install-exec-am install-html \
+	install-html-am install-info install-info-am install-man \
+	install-pdf install-pdf-am install-ps install-ps-am \
+	install-strip installcheck installcheck-am installdirs \
+	maintainer-clean maintainer-clean-generic mostlyclean \
+	mostlyclean-generic mostlyclean-libtool pdf pdf-am ps ps-am \
+	tags-am uninstall uninstall-am
+
+.PRECIOUS: Makefile
+
+
+# Tell versions [3.59,3.63) of GNU make to not export all variables.
+# Otherwise a system limit (for SysV at least) may be exceeded.
+.NOEXPORT:
diff --git a/build/msvc/msvc-generate/version.m4.in b/build/msvc/msvc-generate/version.m4.in
deleted file mode 100644
index cbb4fef..0000000
--- a/build/msvc/msvc-generate/version.m4.in
+++ /dev/null
@@ -1,3 +0,0 @@
-define([OPENVPN_VERSION_MAJOR], [@PRODUCT_VERSION_MAJOR@])
-define([OPENVPN_VERSION_MINOR], [@PRODUCT_VERSION_MINOR@])
-define([OPENVPN_VERSION_PATCH], [@PRODUCT_VERSION_PATCH@])
diff --git a/compile b/compile
new file mode 100755
index 0000000..99e5052
--- /dev/null
+++ b/compile
@@ -0,0 +1,348 @@
+#! /bin/sh
+# Wrapper for compilers which do not understand '-c -o'.
+
+scriptversion=2018-03-07.03; # UTC
+
+# Copyright (C) 1999-2018 Free Software Foundation, Inc.
+# Written by Tom Tromey <tromey@cygnus.com>.
+#
+# This program is free software; you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation; either version 2, or (at your option)
+# any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program.  If not, see <https://www.gnu.org/licenses/>.
+
+# As a special exception to the GNU General Public License, if you
+# distribute this file as part of a program that contains a
+# configuration script generated by Autoconf, you may include it under
+# the same distribution terms that you use for the rest of that program.
+
+# This file is maintained in Automake, please report
+# bugs to <bug-automake@gnu.org> or send patches to
+# <automake-patches@gnu.org>.
+
+nl='
+'
+
+# We need space, tab and new line, in precisely that order.  Quoting is
+# there to prevent tools from complaining about whitespace usage.
+IFS=" ""	$nl"
+
+file_conv=
+
+# func_file_conv build_file lazy
+# Convert a $build file to $host form and store it in $file
+# Currently only supports Windows hosts. If the determined conversion
+# type is listed in (the comma separated) LAZY, no conversion will
+# take place.
+func_file_conv ()
+{
+  file=$1
+  case $file in
+    / | /[!/]*) # absolute file, and not a UNC file
+      if test -z "$file_conv"; then
+	# lazily determine how to convert abs files
+	case `uname -s` in
+	  MINGW*)
+	    file_conv=mingw
+	    ;;
+	  CYGWIN*)
+	    file_conv=cygwin
+	    ;;
+	  *)
+	    file_conv=wine
+	    ;;
+	esac
+      fi
+      case $file_conv/,$2, in
+	*,$file_conv,*)
+	  ;;
+	mingw/*)
+	  file=`cmd //C echo "$file " | sed -e 's/"\(.*\) " *$/\1/'`
+	  ;;
+	cygwin/*)
+	  file=`cygpath -m "$file" || echo "$file"`
+	  ;;
+	wine/*)
+	  file=`winepath -w "$file" || echo "$file"`
+	  ;;
+      esac
+      ;;
+  esac
+}
+
+# func_cl_dashL linkdir
+# Make cl look for libraries in LINKDIR
+func_cl_dashL ()
+{
+  func_file_conv "$1"
+  if test -z "$lib_path"; then
+    lib_path=$file
+  else
+    lib_path="$lib_path;$file"
+  fi
+  linker_opts="$linker_opts -LIBPATH:$file"
+}
+
+# func_cl_dashl library
+# Do a library search-path lookup for cl
+func_cl_dashl ()
+{
+  lib=$1
+  found=no
+  save_IFS=$IFS
+  IFS=';'
+  for dir in $lib_path $LIB
+  do
+    IFS=$save_IFS
+    if $shared && test -f "$dir/$lib.dll.lib"; then
+      found=yes
+      lib=$dir/$lib.dll.lib
+      break
+    fi
+    if test -f "$dir/$lib.lib"; then
+      found=yes
+      lib=$dir/$lib.lib
+      break
+    fi
+    if test -f "$dir/lib$lib.a"; then
+      found=yes
+      lib=$dir/lib$lib.a
+      break
+    fi
+  done
+  IFS=$save_IFS
+
+  if test "$found" != yes; then
+    lib=$lib.lib
+  fi
+}
+
+# func_cl_wrapper cl arg...
+# Adjust compile command to suit cl
+func_cl_wrapper ()
+{
+  # Assume a capable shell
+  lib_path=
+  shared=:
+  linker_opts=
+  for arg
+  do
+    if test -n "$eat"; then
+      eat=
+    else
+      case $1 in
+	-o)
+	  # configure might choose to run compile as 'compile cc -o foo foo.c'.
+	  eat=1
+	  case $2 in
+	    *.o | *.[oO][bB][jJ])
+	      func_file_conv "$2"
+	      set x "$@" -Fo"$file"
+	      shift
+	      ;;
+	    *)
+	      func_file_conv "$2"
+	      set x "$@" -Fe"$file"
+	      shift
+	      ;;
+	  esac
+	  ;;
+	-I)
+	  eat=1
+	  func_file_conv "$2" mingw
+	  set x "$@" -I"$file"
+	  shift
+	  ;;
+	-I*)
+	  func_file_conv "${1#-I}" mingw
+	  set x "$@" -I"$file"
+	  shift
+	  ;;
+	-l)
+	  eat=1
+	  func_cl_dashl "$2"
+	  set x "$@" "$lib"
+	  shift
+	  ;;
+	-l*)
+	  func_cl_dashl "${1#-l}"
+	  set x "$@" "$lib"
+	  shift
+	  ;;
+	-L)
+	  eat=1
+	  func_cl_dashL "$2"
+	  ;;
+	-L*)
+	  func_cl_dashL "${1#-L}"
+	  ;;
+	-static)
+	  shared=false
+	  ;;
+	-Wl,*)
+	  arg=${1#-Wl,}
+	  save_ifs="$IFS"; IFS=','
+	  for flag in $arg; do
+	    IFS="$save_ifs"
+	    linker_opts="$linker_opts $flag"
+	  done
+	  IFS="$save_ifs"
+	  ;;
+	-Xlinker)
+	  eat=1
+	  linker_opts="$linker_opts $2"
+	  ;;
+	-*)
+	  set x "$@" "$1"
+	  shift
+	  ;;
+	*.cc | *.CC | *.cxx | *.CXX | *.[cC]++)
+	  func_file_conv "$1"
+	  set x "$@" -Tp"$file"
+	  shift
+	  ;;
+	*.c | *.cpp | *.CPP | *.lib | *.LIB | *.Lib | *.OBJ | *.obj | *.[oO])
+	  func_file_conv "$1" mingw
+	  set x "$@" "$file"
+	  shift
+	  ;;
+	*)
+	  set x "$@" "$1"
+	  shift
+	  ;;
+      esac
+    fi
+    shift
+  done
+  if test -n "$linker_opts"; then
+    linker_opts="-link$linker_opts"
+  fi
+  exec "$@" $linker_opts
+  exit 1
+}
+
+eat=
+
+case $1 in
+  '')
+     echo "$0: No command.  Try '$0 --help' for more information." 1>&2
+     exit 1;
+     ;;
+  -h | --h*)
+    cat <<\EOF
+Usage: compile [--help] [--version] PROGRAM [ARGS]
+
+Wrapper for compilers which do not understand '-c -o'.
+Remove '-o dest.o' from ARGS, run PROGRAM with the remaining
+arguments, and rename the output as expected.
+
+If you are trying to build a whole package this is not the
+right script to run: please start by reading the file 'INSTALL'.
+
+Report bugs to <bug-automake@gnu.org>.
+EOF
+    exit $?
+    ;;
+  -v | --v*)
+    echo "compile $scriptversion"
+    exit $?
+    ;;
+  cl | *[/\\]cl | cl.exe | *[/\\]cl.exe | \
+  icl | *[/\\]icl | icl.exe | *[/\\]icl.exe )
+    func_cl_wrapper "$@"      # Doesn't return...
+    ;;
+esac
+
+ofile=
+cfile=
+
+for arg
+do
+  if test -n "$eat"; then
+    eat=
+  else
+    case $1 in
+      -o)
+	# configure might choose to run compile as 'compile cc -o foo foo.c'.
+	# So we strip '-o arg' only if arg is an object.
+	eat=1
+	case $2 in
+	  *.o | *.obj)
+	    ofile=$2
+	    ;;
+	  *)
+	    set x "$@" -o "$2"
+	    shift
+	    ;;
+	esac
+	;;
+      *.c)
+	cfile=$1
+	set x "$@" "$1"
+	shift
+	;;
+      *)
+	set x "$@" "$1"
+	shift
+	;;
+    esac
+  fi
+  shift
+done
+
+if test -z "$ofile" || test -z "$cfile"; then
+  # If no '-o' option was seen then we might have been invoked from a
+  # pattern rule where we don't need one.  That is ok -- this is a
+  # normal compilation that the losing compiler can handle.  If no
+  # '.c' file was seen then we are probably linking.  That is also
+  # ok.
+  exec "$@"
+fi
+
+# Name of file we expect compiler to create.
+cofile=`echo "$cfile" | sed 's|^.*[\\/]||; s|^[a-zA-Z]:||; s/\.c$/.o/'`
+
+# Create the lock directory.
+# Note: use '[/\\:.-]' here to ensure that we don't use the same name
+# that we are using for the .o file.  Also, base the name on the expected
+# object file name, since that is what matters with a parallel build.
+lockdir=`echo "$cofile" | sed -e 's|[/\\:.-]|_|g'`.d
+while true; do
+  if mkdir "$lockdir" >/dev/null 2>&1; then
+    break
+  fi
+  sleep 1
+done
+# FIXME: race condition here if user kills between mkdir and trap.
+trap "rmdir '$lockdir'; exit 1" 1 2 15
+
+# Run the compile.
+"$@"
+ret=$?
+
+if test -f "$cofile"; then
+  test "$cofile" = "$ofile" || mv "$cofile" "$ofile"
+elif test -f "${cofile}bj"; then
+  test "${cofile}bj" = "$ofile" || mv "${cofile}bj" "$ofile"
+fi
+
+rmdir "$lockdir"
+exit $ret
+
+# Local Variables:
+# mode: shell-script
+# sh-indentation: 2
+# eval: (add-hook 'before-save-hook 'time-stamp)
+# time-stamp-start: "scriptversion="
+# time-stamp-format: "%:y-%02m-%02d.%02H"
+# time-stamp-time-zone: "UTC0"
+# time-stamp-end: "; # UTC"
+# End:
diff --git a/config.guess b/config.guess
new file mode 100755
index 0000000..b33c9e8
--- /dev/null
+++ b/config.guess
@@ -0,0 +1,1486 @@
+#! /bin/sh
+# Attempt to guess a canonical system name.
+#   Copyright 1992-2018 Free Software Foundation, Inc.
+
+timestamp='2018-08-29'
+
+# This file is free software; you can redistribute it and/or modify it
+# under the terms of the GNU General Public License as published by
+# the Free Software Foundation; either version 3 of the License, or
+# (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful, but
+# WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+# General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program; if not, see <https://www.gnu.org/licenses/>.
+#
+# As a special exception to the GNU General Public License, if you
+# distribute this file as part of a program that contains a
+# configuration script generated by Autoconf, you may include it under
+# the same distribution terms that you use for the rest of that
+# program.  This Exception is an additional permission under section 7
+# of the GNU General Public License, version 3 ("GPLv3").
+#
+# Originally written by Per Bothner; maintained since 2000 by Ben Elliston.
+#
+# You can get the latest version of this script from:
+# https://git.savannah.gnu.org/gitweb/?p=config.git;a=blob_plain;f=config.guess
+#
+# Please send patches to <config-patches@gnu.org>.
+
+
+me=`echo "$0" | sed -e 's,.*/,,'`
+
+usage="\
+Usage: $0 [OPTION]
+
+Output the configuration name of the system \`$me' is run on.
+
+Options:
+  -h, --help         print this help, then exit
+  -t, --time-stamp   print date of last modification, then exit
+  -v, --version      print version number, then exit
+
+Report bugs and patches to <config-patches@gnu.org>."
+
+version="\
+GNU config.guess ($timestamp)
+
+Originally written by Per Bothner.
+Copyright 1992-2018 Free Software Foundation, Inc.
+
+This is free software; see the source for copying conditions.  There is NO
+warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE."
+
+help="
+Try \`$me --help' for more information."
+
+# Parse command line
+while test $# -gt 0 ; do
+  case $1 in
+    --time-stamp | --time* | -t )
+       echo "$timestamp" ; exit ;;
+    --version | -v )
+       echo "$version" ; exit ;;
+    --help | --h* | -h )
+       echo "$usage"; exit ;;
+    -- )     # Stop option processing
+       shift; break ;;
+    - )	# Use stdin as input.
+       break ;;
+    -* )
+       echo "$me: invalid option $1$help" >&2
+       exit 1 ;;
+    * )
+       break ;;
+  esac
+done
+
+if test $# != 0; then
+  echo "$me: too many arguments$help" >&2
+  exit 1
+fi
+
+# CC_FOR_BUILD -- compiler used by this script. Note that the use of a
+# compiler to aid in system detection is discouraged as it requires
+# temporary files to be created and, as you can see below, it is a
+# headache to deal with in a portable fashion.
+
+# Historically, `CC_FOR_BUILD' used to be named `HOST_CC'. We still
+# use `HOST_CC' if defined, but it is deprecated.
+
+# Portable tmp directory creation inspired by the Autoconf team.
+
+tmp=
+# shellcheck disable=SC2172
+trap 'test -z "$tmp" || rm -fr "$tmp"' 1 2 13 15
+trap 'exitcode=$?; test -z "$tmp" || rm -fr "$tmp"; exit $exitcode' 0
+
+set_cc_for_build() {
+    : "${TMPDIR=/tmp}"
+    # shellcheck disable=SC2039
+    { tmp=`(umask 077 && mktemp -d "$TMPDIR/cgXXXXXX") 2>/dev/null` && test -n "$tmp" && test -d "$tmp" ; } ||
+	{ test -n "$RANDOM" && tmp=$TMPDIR/cg$$-$RANDOM && (umask 077 && mkdir "$tmp" 2>/dev/null) ; } ||
+	{ tmp=$TMPDIR/cg-$$ && (umask 077 && mkdir "$tmp" 2>/dev/null) && echo "Warning: creating insecure temp directory" >&2 ; } ||
+	{ echo "$me: cannot create a temporary directory in $TMPDIR" >&2 ; exit 1 ; }
+    dummy=$tmp/dummy
+    case ${CC_FOR_BUILD-},${HOST_CC-},${CC-} in
+	,,)    echo "int x;" > "$dummy.c"
+	       for driver in cc gcc c89 c99 ; do
+		   if ($driver -c -o "$dummy.o" "$dummy.c") >/dev/null 2>&1 ; then
+		       CC_FOR_BUILD="$driver"
+		       break
+		   fi
+	       done
+	       if test x"$CC_FOR_BUILD" = x ; then
+		   CC_FOR_BUILD=no_compiler_found
+	       fi
+	       ;;
+	,,*)   CC_FOR_BUILD=$CC ;;
+	,*,*)  CC_FOR_BUILD=$HOST_CC ;;
+    esac
+}
+
+# This is needed to find uname on a Pyramid OSx when run in the BSD universe.
+# (ghazi@noc.rutgers.edu 1994-08-24)
+if test -f /.attbin/uname ; then
+	PATH=$PATH:/.attbin ; export PATH
+fi
+
+UNAME_MACHINE=`(uname -m) 2>/dev/null` || UNAME_MACHINE=unknown
+UNAME_RELEASE=`(uname -r) 2>/dev/null` || UNAME_RELEASE=unknown
+UNAME_SYSTEM=`(uname -s) 2>/dev/null`  || UNAME_SYSTEM=unknown
+UNAME_VERSION=`(uname -v) 2>/dev/null` || UNAME_VERSION=unknown
+
+case "$UNAME_SYSTEM" in
+Linux|GNU|GNU/*)
+	# If the system lacks a compiler, then just pick glibc.
+	# We could probably try harder.
+	LIBC=gnu
+
+	set_cc_for_build
+	cat <<-EOF > "$dummy.c"
+	#include <features.h>
+	#if defined(__UCLIBC__)
+	LIBC=uclibc
+	#elif defined(__dietlibc__)
+	LIBC=dietlibc
+	#else
+	LIBC=gnu
+	#endif
+	EOF
+	eval "`$CC_FOR_BUILD -E "$dummy.c" 2>/dev/null | grep '^LIBC' | sed 's, ,,g'`"
+
+	# If ldd exists, use it to detect musl libc.
+	if command -v ldd >/dev/null && \
+		ldd --version 2>&1 | grep -q ^musl
+	then
+	    LIBC=musl
+	fi
+	;;
+esac
+
+# Note: order is significant - the case branches are not exclusive.
+
+case "$UNAME_MACHINE:$UNAME_SYSTEM:$UNAME_RELEASE:$UNAME_VERSION" in
+    *:NetBSD:*:*)
+	# NetBSD (nbsd) targets should (where applicable) match one or
+	# more of the tuples: *-*-netbsdelf*, *-*-netbsdaout*,
+	# *-*-netbsdecoff* and *-*-netbsd*.  For targets that recently
+	# switched to ELF, *-*-netbsd* would select the old
+	# object file format.  This provides both forward
+	# compatibility and a consistent mechanism for selecting the
+	# object file format.
+	#
+	# Note: NetBSD doesn't particularly care about the vendor
+	# portion of the name.  We always set it to "unknown".
+	sysctl="sysctl -n hw.machine_arch"
+	UNAME_MACHINE_ARCH=`(uname -p 2>/dev/null || \
+	    "/sbin/$sysctl" 2>/dev/null || \
+	    "/usr/sbin/$sysctl" 2>/dev/null || \
+	    echo unknown)`
+	case "$UNAME_MACHINE_ARCH" in
+	    armeb) machine=armeb-unknown ;;
+	    arm*) machine=arm-unknown ;;
+	    sh3el) machine=shl-unknown ;;
+	    sh3eb) machine=sh-unknown ;;
+	    sh5el) machine=sh5le-unknown ;;
+	    earmv*)
+		arch=`echo "$UNAME_MACHINE_ARCH" | sed -e 's,^e\(armv[0-9]\).*$,\1,'`
+		endian=`echo "$UNAME_MACHINE_ARCH" | sed -ne 's,^.*\(eb\)$,\1,p'`
+		machine="${arch}${endian}"-unknown
+		;;
+	    *) machine="$UNAME_MACHINE_ARCH"-unknown ;;
+	esac
+	# The Operating System including object format, if it has switched
+	# to ELF recently (or will in the future) and ABI.
+	case "$UNAME_MACHINE_ARCH" in
+	    earm*)
+		os=netbsdelf
+		;;
+	    arm*|i386|m68k|ns32k|sh3*|sparc|vax)
+		set_cc_for_build
+		if echo __ELF__ | $CC_FOR_BUILD -E - 2>/dev/null \
+			| grep -q __ELF__
+		then
+		    # Once all utilities can be ECOFF (netbsdecoff) or a.out (netbsdaout).
+		    # Return netbsd for either.  FIX?
+		    os=netbsd
+		else
+		    os=netbsdelf
+		fi
+		;;
+	    *)
+		os=netbsd
+		;;
+	esac
+	# Determine ABI tags.
+	case "$UNAME_MACHINE_ARCH" in
+	    earm*)
+		expr='s/^earmv[0-9]/-eabi/;s/eb$//'
+		abi=`echo "$UNAME_MACHINE_ARCH" | sed -e "$expr"`
+		;;
+	esac
+	# The OS release
+	# Debian GNU/NetBSD machines have a different userland, and
+	# thus, need a distinct triplet. However, they do not need
+	# kernel version information, so it can be replaced with a
+	# suitable tag, in the style of linux-gnu.
+	case "$UNAME_VERSION" in
+	    Debian*)
+		release='-gnu'
+		;;
+	    *)
+		release=`echo "$UNAME_RELEASE" | sed -e 's/[-_].*//' | cut -d. -f1,2`
+		;;
+	esac
+	# Since CPU_TYPE-MANUFACTURER-KERNEL-OPERATING_SYSTEM:
+	# contains redundant information, the shorter form:
+	# CPU_TYPE-MANUFACTURER-OPERATING_SYSTEM is used.
+	echo "$machine-${os}${release}${abi-}"
+	exit ;;
+    *:Bitrig:*:*)
+	UNAME_MACHINE_ARCH=`arch | sed 's/Bitrig.//'`
+	echo "$UNAME_MACHINE_ARCH"-unknown-bitrig"$UNAME_RELEASE"
+	exit ;;
+    *:OpenBSD:*:*)
+	UNAME_MACHINE_ARCH=`arch | sed 's/OpenBSD.//'`
+	echo "$UNAME_MACHINE_ARCH"-unknown-openbsd"$UNAME_RELEASE"
+	exit ;;
+    *:LibertyBSD:*:*)
+	UNAME_MACHINE_ARCH=`arch | sed 's/^.*BSD\.//'`
+	echo "$UNAME_MACHINE_ARCH"-unknown-libertybsd"$UNAME_RELEASE"
+	exit ;;
+    *:MidnightBSD:*:*)
+	echo "$UNAME_MACHINE"-unknown-midnightbsd"$UNAME_RELEASE"
+	exit ;;
+    *:ekkoBSD:*:*)
+	echo "$UNAME_MACHINE"-unknown-ekkobsd"$UNAME_RELEASE"
+	exit ;;
+    *:SolidBSD:*:*)
+	echo "$UNAME_MACHINE"-unknown-solidbsd"$UNAME_RELEASE"
+	exit ;;
+    macppc:MirBSD:*:*)
+	echo powerpc-unknown-mirbsd"$UNAME_RELEASE"
+	exit ;;
+    *:MirBSD:*:*)
+	echo "$UNAME_MACHINE"-unknown-mirbsd"$UNAME_RELEASE"
+	exit ;;
+    *:Sortix:*:*)
+	echo "$UNAME_MACHINE"-unknown-sortix
+	exit ;;
+    *:Redox:*:*)
+	echo "$UNAME_MACHINE"-unknown-redox
+	exit ;;
+    mips:OSF1:*.*)
+        echo mips-dec-osf1
+        exit ;;
+    alpha:OSF1:*:*)
+	case $UNAME_RELEASE in
+	*4.0)
+		UNAME_RELEASE=`/usr/sbin/sizer -v | awk '{print $3}'`
+		;;
+	*5.*)
+		UNAME_RELEASE=`/usr/sbin/sizer -v | awk '{print $4}'`
+		;;
+	esac
+	# According to Compaq, /usr/sbin/psrinfo has been available on
+	# OSF/1 and Tru64 systems produced since 1995.  I hope that
+	# covers most systems running today.  This code pipes the CPU
+	# types through head -n 1, so we only detect the type of CPU 0.
+	ALPHA_CPU_TYPE=`/usr/sbin/psrinfo -v | sed -n -e 's/^  The alpha \(.*\) processor.*$/\1/p' | head -n 1`
+	case "$ALPHA_CPU_TYPE" in
+	    "EV4 (21064)")
+		UNAME_MACHINE=alpha ;;
+	    "EV4.5 (21064)")
+		UNAME_MACHINE=alpha ;;
+	    "LCA4 (21066/21068)")
+		UNAME_MACHINE=alpha ;;
+	    "EV5 (21164)")
+		UNAME_MACHINE=alphaev5 ;;
+	    "EV5.6 (21164A)")
+		UNAME_MACHINE=alphaev56 ;;
+	    "EV5.6 (21164PC)")
+		UNAME_MACHINE=alphapca56 ;;
+	    "EV5.7 (21164PC)")
+		UNAME_MACHINE=alphapca57 ;;
+	    "EV6 (21264)")
+		UNAME_MACHINE=alphaev6 ;;
+	    "EV6.7 (21264A)")
+		UNAME_MACHINE=alphaev67 ;;
+	    "EV6.8CB (21264C)")
+		UNAME_MACHINE=alphaev68 ;;
+	    "EV6.8AL (21264B)")
+		UNAME_MACHINE=alphaev68 ;;
+	    "EV6.8CX (21264D)")
+		UNAME_MACHINE=alphaev68 ;;
+	    "EV6.9A (21264/EV69A)")
+		UNAME_MACHINE=alphaev69 ;;
+	    "EV7 (21364)")
+		UNAME_MACHINE=alphaev7 ;;
+	    "EV7.9 (21364A)")
+		UNAME_MACHINE=alphaev79 ;;
+	esac
+	# A Pn.n version is a patched version.
+	# A Vn.n version is a released version.
+	# A Tn.n version is a released field test version.
+	# A Xn.n version is an unreleased experimental baselevel.
+	# 1.2 uses "1.2" for uname -r.
+	echo "$UNAME_MACHINE"-dec-osf"`echo "$UNAME_RELEASE" | sed -e 's/^[PVTX]//' | tr ABCDEFGHIJKLMNOPQRSTUVWXYZ abcdefghijklmnopqrstuvwxyz`"
+	# Reset EXIT trap before exiting to avoid spurious non-zero exit code.
+	exitcode=$?
+	trap '' 0
+	exit $exitcode ;;
+    Amiga*:UNIX_System_V:4.0:*)
+	echo m68k-unknown-sysv4
+	exit ;;
+    *:[Aa]miga[Oo][Ss]:*:*)
+	echo "$UNAME_MACHINE"-unknown-amigaos
+	exit ;;
+    *:[Mm]orph[Oo][Ss]:*:*)
+	echo "$UNAME_MACHINE"-unknown-morphos
+	exit ;;
+    *:OS/390:*:*)
+	echo i370-ibm-openedition
+	exit ;;
+    *:z/VM:*:*)
+	echo s390-ibm-zvmoe
+	exit ;;
+    *:OS400:*:*)
+	echo powerpc-ibm-os400
+	exit ;;
+    arm:RISC*:1.[012]*:*|arm:riscix:1.[012]*:*)
+	echo arm-acorn-riscix"$UNAME_RELEASE"
+	exit ;;
+    arm*:riscos:*:*|arm*:RISCOS:*:*)
+	echo arm-unknown-riscos
+	exit ;;
+    SR2?01:HI-UX/MPP:*:* | SR8000:HI-UX/MPP:*:*)
+	echo hppa1.1-hitachi-hiuxmpp
+	exit ;;
+    Pyramid*:OSx*:*:* | MIS*:OSx*:*:* | MIS*:SMP_DC-OSx*:*:*)
+	# akee@wpdis03.wpafb.af.mil (Earle F. Ake) contributed MIS and NILE.
+	if test "`(/bin/universe) 2>/dev/null`" = att ; then
+		echo pyramid-pyramid-sysv3
+	else
+		echo pyramid-pyramid-bsd
+	fi
+	exit ;;
+    NILE*:*:*:dcosx)
+	echo pyramid-pyramid-svr4
+	exit ;;
+    DRS?6000:unix:4.0:6*)
+	echo sparc-icl-nx6
+	exit ;;
+    DRS?6000:UNIX_SV:4.2*:7* | DRS?6000:isis:4.2*:7*)
+	case `/usr/bin/uname -p` in
+	    sparc) echo sparc-icl-nx7; exit ;;
+	esac ;;
+    s390x:SunOS:*:*)
+	echo "$UNAME_MACHINE"-ibm-solaris2"`echo "$UNAME_RELEASE" | sed -e 's/[^.]*//'`"
+	exit ;;
+    sun4H:SunOS:5.*:*)
+	echo sparc-hal-solaris2"`echo "$UNAME_RELEASE"|sed -e 's/[^.]*//'`"
+	exit ;;
+    sun4*:SunOS:5.*:* | tadpole*:SunOS:5.*:*)
+	echo sparc-sun-solaris2"`echo "$UNAME_RELEASE" | sed -e 's/[^.]*//'`"
+	exit ;;
+    i86pc:AuroraUX:5.*:* | i86xen:AuroraUX:5.*:*)
+	echo i386-pc-auroraux"$UNAME_RELEASE"
+	exit ;;
+    i86pc:SunOS:5.*:* | i86xen:SunOS:5.*:*)
+	UNAME_REL="`echo "$UNAME_RELEASE" | sed -e 's/[^.]*//'`"
+	case `isainfo -b` in
+	    32)
+		echo i386-pc-solaris2"$UNAME_REL"
+		;;
+	    64)
+		echo x86_64-pc-solaris2"$UNAME_REL"
+		;;
+	esac
+	exit ;;
+    sun4*:SunOS:6*:*)
+	# According to config.sub, this is the proper way to canonicalize
+	# SunOS6.  Hard to guess exactly what SunOS6 will be like, but
+	# it's likely to be more like Solaris than SunOS4.
+	echo sparc-sun-solaris3"`echo "$UNAME_RELEASE"|sed -e 's/[^.]*//'`"
+	exit ;;
+    sun4*:SunOS:*:*)
+	case "`/usr/bin/arch -k`" in
+	    Series*|S4*)
+		UNAME_RELEASE=`uname -v`
+		;;
+	esac
+	# Japanese Language versions have a version number like `4.1.3-JL'.
+	echo sparc-sun-sunos"`echo "$UNAME_RELEASE"|sed -e 's/-/_/'`"
+	exit ;;
+    sun3*:SunOS:*:*)
+	echo m68k-sun-sunos"$UNAME_RELEASE"
+	exit ;;
+    sun*:*:4.2BSD:*)
+	UNAME_RELEASE=`(sed 1q /etc/motd | awk '{print substr($5,1,3)}') 2>/dev/null`
+	test "x$UNAME_RELEASE" = x && UNAME_RELEASE=3
+	case "`/bin/arch`" in
+	    sun3)
+		echo m68k-sun-sunos"$UNAME_RELEASE"
+		;;
+	    sun4)
+		echo sparc-sun-sunos"$UNAME_RELEASE"
+		;;
+	esac
+	exit ;;
+    aushp:SunOS:*:*)
+	echo sparc-auspex-sunos"$UNAME_RELEASE"
+	exit ;;
+    # The situation for MiNT is a little confusing.  The machine name
+    # can be virtually everything (everything which is not
+    # "atarist" or "atariste" at least should have a processor
+    # > m68000).  The system name ranges from "MiNT" over "FreeMiNT"
+    # to the lowercase version "mint" (or "freemint").  Finally
+    # the system name "TOS" denotes a system which is actually not
+    # MiNT.  But MiNT is downward compatible to TOS, so this should
+    # be no problem.
+    atarist[e]:*MiNT:*:* | atarist[e]:*mint:*:* | atarist[e]:*TOS:*:*)
+	echo m68k-atari-mint"$UNAME_RELEASE"
+	exit ;;
+    atari*:*MiNT:*:* | atari*:*mint:*:* | atarist[e]:*TOS:*:*)
+	echo m68k-atari-mint"$UNAME_RELEASE"
+	exit ;;
+    *falcon*:*MiNT:*:* | *falcon*:*mint:*:* | *falcon*:*TOS:*:*)
+	echo m68k-atari-mint"$UNAME_RELEASE"
+	exit ;;
+    milan*:*MiNT:*:* | milan*:*mint:*:* | *milan*:*TOS:*:*)
+	echo m68k-milan-mint"$UNAME_RELEASE"
+	exit ;;
+    hades*:*MiNT:*:* | hades*:*mint:*:* | *hades*:*TOS:*:*)
+	echo m68k-hades-mint"$UNAME_RELEASE"
+	exit ;;
+    *:*MiNT:*:* | *:*mint:*:* | *:*TOS:*:*)
+	echo m68k-unknown-mint"$UNAME_RELEASE"
+	exit ;;
+    m68k:machten:*:*)
+	echo m68k-apple-machten"$UNAME_RELEASE"
+	exit ;;
+    powerpc:machten:*:*)
+	echo powerpc-apple-machten"$UNAME_RELEASE"
+	exit ;;
+    RISC*:Mach:*:*)
+	echo mips-dec-mach_bsd4.3
+	exit ;;
+    RISC*:ULTRIX:*:*)
+	echo mips-dec-ultrix"$UNAME_RELEASE"
+	exit ;;
+    VAX*:ULTRIX*:*:*)
+	echo vax-dec-ultrix"$UNAME_RELEASE"
+	exit ;;
+    2020:CLIX:*:* | 2430:CLIX:*:*)
+	echo clipper-intergraph-clix"$UNAME_RELEASE"
+	exit ;;
+    mips:*:*:UMIPS | mips:*:*:RISCos)
+	set_cc_for_build
+	sed 's/^	//' << EOF > "$dummy.c"
+#ifdef __cplusplus
+#include <stdio.h>  /* for printf() prototype */
+	int main (int argc, char *argv[]) {
+#else
+	int main (argc, argv) int argc; char *argv[]; {
+#endif
+	#if defined (host_mips) && defined (MIPSEB)
+	#if defined (SYSTYPE_SYSV)
+	  printf ("mips-mips-riscos%ssysv\\n", argv[1]); exit (0);
+	#endif
+	#if defined (SYSTYPE_SVR4)
+	  printf ("mips-mips-riscos%ssvr4\\n", argv[1]); exit (0);
+	#endif
+	#if defined (SYSTYPE_BSD43) || defined(SYSTYPE_BSD)
+	  printf ("mips-mips-riscos%sbsd\\n", argv[1]); exit (0);
+	#endif
+	#endif
+	  exit (-1);
+	}
+EOF
+	$CC_FOR_BUILD -o "$dummy" "$dummy.c" &&
+	  dummyarg=`echo "$UNAME_RELEASE" | sed -n 's/\([0-9]*\).*/\1/p'` &&
+	  SYSTEM_NAME=`"$dummy" "$dummyarg"` &&
+	    { echo "$SYSTEM_NAME"; exit; }
+	echo mips-mips-riscos"$UNAME_RELEASE"
+	exit ;;
+    Motorola:PowerMAX_OS:*:*)
+	echo powerpc-motorola-powermax
+	exit ;;
+    Motorola:*:4.3:PL8-*)
+	echo powerpc-harris-powermax
+	exit ;;
+    Night_Hawk:*:*:PowerMAX_OS | Synergy:PowerMAX_OS:*:*)
+	echo powerpc-harris-powermax
+	exit ;;
+    Night_Hawk:Power_UNIX:*:*)
+	echo powerpc-harris-powerunix
+	exit ;;
+    m88k:CX/UX:7*:*)
+	echo m88k-harris-cxux7
+	exit ;;
+    m88k:*:4*:R4*)
+	echo m88k-motorola-sysv4
+	exit ;;
+    m88k:*:3*:R3*)
+	echo m88k-motorola-sysv3
+	exit ;;
+    AViiON:dgux:*:*)
+	# DG/UX returns AViiON for all architectures
+	UNAME_PROCESSOR=`/usr/bin/uname -p`
+	if [ "$UNAME_PROCESSOR" = mc88100 ] || [ "$UNAME_PROCESSOR" = mc88110 ]
+	then
+	    if [ "$TARGET_BINARY_INTERFACE"x = m88kdguxelfx ] || \
+	       [ "$TARGET_BINARY_INTERFACE"x = x ]
+	    then
+		echo m88k-dg-dgux"$UNAME_RELEASE"
+	    else
+		echo m88k-dg-dguxbcs"$UNAME_RELEASE"
+	    fi
+	else
+	    echo i586-dg-dgux"$UNAME_RELEASE"
+	fi
+	exit ;;
+    M88*:DolphinOS:*:*)	# DolphinOS (SVR3)
+	echo m88k-dolphin-sysv3
+	exit ;;
+    M88*:*:R3*:*)
+	# Delta 88k system running SVR3
+	echo m88k-motorola-sysv3
+	exit ;;
+    XD88*:*:*:*) # Tektronix XD88 system running UTekV (SVR3)
+	echo m88k-tektronix-sysv3
+	exit ;;
+    Tek43[0-9][0-9]:UTek:*:*) # Tektronix 4300 system running UTek (BSD)
+	echo m68k-tektronix-bsd
+	exit ;;
+    *:IRIX*:*:*)
+	echo mips-sgi-irix"`echo "$UNAME_RELEASE"|sed -e 's/-/_/g'`"
+	exit ;;
+    ????????:AIX?:[12].1:2)   # AIX 2.2.1 or AIX 2.1.1 is RT/PC AIX.
+	echo romp-ibm-aix     # uname -m gives an 8 hex-code CPU id
+	exit ;;               # Note that: echo "'`uname -s`'" gives 'AIX '
+    i*86:AIX:*:*)
+	echo i386-ibm-aix
+	exit ;;
+    ia64:AIX:*:*)
+	if [ -x /usr/bin/oslevel ] ; then
+		IBM_REV=`/usr/bin/oslevel`
+	else
+		IBM_REV="$UNAME_VERSION.$UNAME_RELEASE"
+	fi
+	echo "$UNAME_MACHINE"-ibm-aix"$IBM_REV"
+	exit ;;
+    *:AIX:2:3)
+	if grep bos325 /usr/include/stdio.h >/dev/null 2>&1; then
+		set_cc_for_build
+		sed 's/^		//' << EOF > "$dummy.c"
+		#include <sys/systemcfg.h>
+
+		main()
+			{
+			if (!__power_pc())
+				exit(1);
+			puts("powerpc-ibm-aix3.2.5");
+			exit(0);
+			}
+EOF
+		if $CC_FOR_BUILD -o "$dummy" "$dummy.c" && SYSTEM_NAME=`"$dummy"`
+		then
+			echo "$SYSTEM_NAME"
+		else
+			echo rs6000-ibm-aix3.2.5
+		fi
+	elif grep bos324 /usr/include/stdio.h >/dev/null 2>&1; then
+		echo rs6000-ibm-aix3.2.4
+	else
+		echo rs6000-ibm-aix3.2
+	fi
+	exit ;;
+    *:AIX:*:[4567])
+	IBM_CPU_ID=`/usr/sbin/lsdev -C -c processor -S available | sed 1q | awk '{ print $1 }'`
+	if /usr/sbin/lsattr -El "$IBM_CPU_ID" | grep ' POWER' >/dev/null 2>&1; then
+		IBM_ARCH=rs6000
+	else
+		IBM_ARCH=powerpc
+	fi
+	if [ -x /usr/bin/lslpp ] ; then
+		IBM_REV=`/usr/bin/lslpp -Lqc bos.rte.libc |
+			   awk -F: '{ print $3 }' | sed s/[0-9]*$/0/`
+	else
+		IBM_REV="$UNAME_VERSION.$UNAME_RELEASE"
+	fi
+	echo "$IBM_ARCH"-ibm-aix"$IBM_REV"
+	exit ;;
+    *:AIX:*:*)
+	echo rs6000-ibm-aix
+	exit ;;
+    ibmrt:4.4BSD:*|romp-ibm:4.4BSD:*)
+	echo romp-ibm-bsd4.4
+	exit ;;
+    ibmrt:*BSD:*|romp-ibm:BSD:*)            # covers RT/PC BSD and
+	echo romp-ibm-bsd"$UNAME_RELEASE"   # 4.3 with uname added to
+	exit ;;                             # report: romp-ibm BSD 4.3
+    *:BOSX:*:*)
+	echo rs6000-bull-bosx
+	exit ;;
+    DPX/2?00:B.O.S.:*:*)
+	echo m68k-bull-sysv3
+	exit ;;
+    9000/[34]??:4.3bsd:1.*:*)
+	echo m68k-hp-bsd
+	exit ;;
+    hp300:4.4BSD:*:* | 9000/[34]??:4.3bsd:2.*:*)
+	echo m68k-hp-bsd4.4
+	exit ;;
+    9000/[34678]??:HP-UX:*:*)
+	HPUX_REV=`echo "$UNAME_RELEASE"|sed -e 's/[^.]*.[0B]*//'`
+	case "$UNAME_MACHINE" in
+	    9000/31?)            HP_ARCH=m68000 ;;
+	    9000/[34]??)         HP_ARCH=m68k ;;
+	    9000/[678][0-9][0-9])
+		if [ -x /usr/bin/getconf ]; then
+		    sc_cpu_version=`/usr/bin/getconf SC_CPU_VERSION 2>/dev/null`
+		    sc_kernel_bits=`/usr/bin/getconf SC_KERNEL_BITS 2>/dev/null`
+		    case "$sc_cpu_version" in
+		      523) HP_ARCH=hppa1.0 ;; # CPU_PA_RISC1_0
+		      528) HP_ARCH=hppa1.1 ;; # CPU_PA_RISC1_1
+		      532)                      # CPU_PA_RISC2_0
+			case "$sc_kernel_bits" in
+			  32) HP_ARCH=hppa2.0n ;;
+			  64) HP_ARCH=hppa2.0w ;;
+			  '') HP_ARCH=hppa2.0 ;;   # HP-UX 10.20
+			esac ;;
+		    esac
+		fi
+		if [ "$HP_ARCH" = "" ]; then
+		    set_cc_for_build
+		    sed 's/^		//' << EOF > "$dummy.c"
+
+		#define _HPUX_SOURCE
+		#include <stdlib.h>
+		#include <unistd.h>
+
+		int main ()
+		{
+		#if defined(_SC_KERNEL_BITS)
+		    long bits = sysconf(_SC_KERNEL_BITS);
+		#endif
+		    long cpu  = sysconf (_SC_CPU_VERSION);
+
+		    switch (cpu)
+			{
+			case CPU_PA_RISC1_0: puts ("hppa1.0"); break;
+			case CPU_PA_RISC1_1: puts ("hppa1.1"); break;
+			case CPU_PA_RISC2_0:
+		#if defined(_SC_KERNEL_BITS)
+			    switch (bits)
+				{
+				case 64: puts ("hppa2.0w"); break;
+				case 32: puts ("hppa2.0n"); break;
+				default: puts ("hppa2.0"); break;
+				} break;
+		#else  /* !defined(_SC_KERNEL_BITS) */
+			    puts ("hppa2.0"); break;
+		#endif
+			default: puts ("hppa1.0"); break;
+			}
+		    exit (0);
+		}
+EOF
+		    (CCOPTS="" $CC_FOR_BUILD -o "$dummy" "$dummy.c" 2>/dev/null) && HP_ARCH=`"$dummy"`
+		    test -z "$HP_ARCH" && HP_ARCH=hppa
+		fi ;;
+	esac
+	if [ "$HP_ARCH" = hppa2.0w ]
+	then
+	    set_cc_for_build
+
+	    # hppa2.0w-hp-hpux* has a 64-bit kernel and a compiler generating
+	    # 32-bit code.  hppa64-hp-hpux* has the same kernel and a compiler
+	    # generating 64-bit code.  GNU and HP use different nomenclature:
+	    #
+	    # $ CC_FOR_BUILD=cc ./config.guess
+	    # => hppa2.0w-hp-hpux11.23
+	    # $ CC_FOR_BUILD="cc +DA2.0w" ./config.guess
+	    # => hppa64-hp-hpux11.23
+
+	    if echo __LP64__ | (CCOPTS="" $CC_FOR_BUILD -E - 2>/dev/null) |
+		grep -q __LP64__
+	    then
+		HP_ARCH=hppa2.0w
+	    else
+		HP_ARCH=hppa64
+	    fi
+	fi
+	echo "$HP_ARCH"-hp-hpux"$HPUX_REV"
+	exit ;;
+    ia64:HP-UX:*:*)
+	HPUX_REV=`echo "$UNAME_RELEASE"|sed -e 's/[^.]*.[0B]*//'`
+	echo ia64-hp-hpux"$HPUX_REV"
+	exit ;;
+    3050*:HI-UX:*:*)
+	set_cc_for_build
+	sed 's/^	//' << EOF > "$dummy.c"
+	#include <unistd.h>
+	int
+	main ()
+	{
+	  long cpu = sysconf (_SC_CPU_VERSION);
+	  /* The order matters, because CPU_IS_HP_MC68K erroneously returns
+	     true for CPU_PA_RISC1_0.  CPU_IS_PA_RISC returns correct
+	     results, however.  */
+	  if (CPU_IS_PA_RISC (cpu))
+	    {
+	      switch (cpu)
+		{
+		  case CPU_PA_RISC1_0: puts ("hppa1.0-hitachi-hiuxwe2"); break;
+		  case CPU_PA_RISC1_1: puts ("hppa1.1-hitachi-hiuxwe2"); break;
+		  case CPU_PA_RISC2_0: puts ("hppa2.0-hitachi-hiuxwe2"); break;
+		  default: puts ("hppa-hitachi-hiuxwe2"); break;
+		}
+	    }
+	  else if (CPU_IS_HP_MC68K (cpu))
+	    puts ("m68k-hitachi-hiuxwe2");
+	  else puts ("unknown-hitachi-hiuxwe2");
+	  exit (0);
+	}
+EOF
+	$CC_FOR_BUILD -o "$dummy" "$dummy.c" && SYSTEM_NAME=`"$dummy"` &&
+		{ echo "$SYSTEM_NAME"; exit; }
+	echo unknown-hitachi-hiuxwe2
+	exit ;;
+    9000/7??:4.3bsd:*:* | 9000/8?[79]:4.3bsd:*:*)
+	echo hppa1.1-hp-bsd
+	exit ;;
+    9000/8??:4.3bsd:*:*)
+	echo hppa1.0-hp-bsd
+	exit ;;
+    *9??*:MPE/iX:*:* | *3000*:MPE/iX:*:*)
+	echo hppa1.0-hp-mpeix
+	exit ;;
+    hp7??:OSF1:*:* | hp8?[79]:OSF1:*:*)
+	echo hppa1.1-hp-osf
+	exit ;;
+    hp8??:OSF1:*:*)
+	echo hppa1.0-hp-osf
+	exit ;;
+    i*86:OSF1:*:*)
+	if [ -x /usr/sbin/sysversion ] ; then
+	    echo "$UNAME_MACHINE"-unknown-osf1mk
+	else
+	    echo "$UNAME_MACHINE"-unknown-osf1
+	fi
+	exit ;;
+    parisc*:Lites*:*:*)
+	echo hppa1.1-hp-lites
+	exit ;;
+    C1*:ConvexOS:*:* | convex:ConvexOS:C1*:*)
+	echo c1-convex-bsd
+	exit ;;
+    C2*:ConvexOS:*:* | convex:ConvexOS:C2*:*)
+	if getsysinfo -f scalar_acc
+	then echo c32-convex-bsd
+	else echo c2-convex-bsd
+	fi
+	exit ;;
+    C34*:ConvexOS:*:* | convex:ConvexOS:C34*:*)
+	echo c34-convex-bsd
+	exit ;;
+    C38*:ConvexOS:*:* | convex:ConvexOS:C38*:*)
+	echo c38-convex-bsd
+	exit ;;
+    C4*:ConvexOS:*:* | convex:ConvexOS:C4*:*)
+	echo c4-convex-bsd
+	exit ;;
+    CRAY*Y-MP:*:*:*)
+	echo ymp-cray-unicos"$UNAME_RELEASE" | sed -e 's/\.[^.]*$/.X/'
+	exit ;;
+    CRAY*[A-Z]90:*:*:*)
+	echo "$UNAME_MACHINE"-cray-unicos"$UNAME_RELEASE" \
+	| sed -e 's/CRAY.*\([A-Z]90\)/\1/' \
+	      -e y/ABCDEFGHIJKLMNOPQRSTUVWXYZ/abcdefghijklmnopqrstuvwxyz/ \
+	      -e 's/\.[^.]*$/.X/'
+	exit ;;
+    CRAY*TS:*:*:*)
+	echo t90-cray-unicos"$UNAME_RELEASE" | sed -e 's/\.[^.]*$/.X/'
+	exit ;;
+    CRAY*T3E:*:*:*)
+	echo alphaev5-cray-unicosmk"$UNAME_RELEASE" | sed -e 's/\.[^.]*$/.X/'
+	exit ;;
+    CRAY*SV1:*:*:*)
+	echo sv1-cray-unicos"$UNAME_RELEASE" | sed -e 's/\.[^.]*$/.X/'
+	exit ;;
+    *:UNICOS/mp:*:*)
+	echo craynv-cray-unicosmp"$UNAME_RELEASE" | sed -e 's/\.[^.]*$/.X/'
+	exit ;;
+    F30[01]:UNIX_System_V:*:* | F700:UNIX_System_V:*:*)
+	FUJITSU_PROC=`uname -m | tr ABCDEFGHIJKLMNOPQRSTUVWXYZ abcdefghijklmnopqrstuvwxyz`
+	FUJITSU_SYS=`uname -p | tr ABCDEFGHIJKLMNOPQRSTUVWXYZ abcdefghijklmnopqrstuvwxyz | sed -e 's/\///'`
+	FUJITSU_REL=`echo "$UNAME_RELEASE" | sed -e 's/ /_/'`
+	echo "${FUJITSU_PROC}-fujitsu-${FUJITSU_SYS}${FUJITSU_REL}"
+	exit ;;
+    5000:UNIX_System_V:4.*:*)
+	FUJITSU_SYS=`uname -p | tr ABCDEFGHIJKLMNOPQRSTUVWXYZ abcdefghijklmnopqrstuvwxyz | sed -e 's/\///'`
+	FUJITSU_REL=`echo "$UNAME_RELEASE" | tr ABCDEFGHIJKLMNOPQRSTUVWXYZ abcdefghijklmnopqrstuvwxyz | sed -e 's/ /_/'`
+	echo "sparc-fujitsu-${FUJITSU_SYS}${FUJITSU_REL}"
+	exit ;;
+    i*86:BSD/386:*:* | i*86:BSD/OS:*:* | *:Ascend\ Embedded/OS:*:*)
+	echo "$UNAME_MACHINE"-pc-bsdi"$UNAME_RELEASE"
+	exit ;;
+    sparc*:BSD/OS:*:*)
+	echo sparc-unknown-bsdi"$UNAME_RELEASE"
+	exit ;;
+    *:BSD/OS:*:*)
+	echo "$UNAME_MACHINE"-unknown-bsdi"$UNAME_RELEASE"
+	exit ;;
+    arm:FreeBSD:*:*)
+	UNAME_PROCESSOR=`uname -p`
+	set_cc_for_build
+	if echo __ARM_PCS_VFP | $CC_FOR_BUILD -E - 2>/dev/null \
+	    | grep -q __ARM_PCS_VFP
+	then
+	    echo "${UNAME_PROCESSOR}"-unknown-freebsd"`echo ${UNAME_RELEASE}|sed -e 's/[-(].*//'`"-gnueabi
+	else
+	    echo "${UNAME_PROCESSOR}"-unknown-freebsd"`echo ${UNAME_RELEASE}|sed -e 's/[-(].*//'`"-gnueabihf
+	fi
+	exit ;;
+    *:FreeBSD:*:*)
+	UNAME_PROCESSOR=`/usr/bin/uname -p`
+	case "$UNAME_PROCESSOR" in
+	    amd64)
+		UNAME_PROCESSOR=x86_64 ;;
+	    i386)
+		UNAME_PROCESSOR=i586 ;;
+	esac
+	echo "$UNAME_PROCESSOR"-unknown-freebsd"`echo "$UNAME_RELEASE"|sed -e 's/[-(].*//'`"
+	exit ;;
+    i*:CYGWIN*:*)
+	echo "$UNAME_MACHINE"-pc-cygwin
+	exit ;;
+    *:MINGW64*:*)
+	echo "$UNAME_MACHINE"-pc-mingw64
+	exit ;;
+    *:MINGW*:*)
+	echo "$UNAME_MACHINE"-pc-mingw32
+	exit ;;
+    *:MSYS*:*)
+	echo "$UNAME_MACHINE"-pc-msys
+	exit ;;
+    i*:PW*:*)
+	echo "$UNAME_MACHINE"-pc-pw32
+	exit ;;
+    *:Interix*:*)
+	case "$UNAME_MACHINE" in
+	    x86)
+		echo i586-pc-interix"$UNAME_RELEASE"
+		exit ;;
+	    authenticamd | genuineintel | EM64T)
+		echo x86_64-unknown-interix"$UNAME_RELEASE"
+		exit ;;
+	    IA64)
+		echo ia64-unknown-interix"$UNAME_RELEASE"
+		exit ;;
+	esac ;;
+    i*:UWIN*:*)
+	echo "$UNAME_MACHINE"-pc-uwin
+	exit ;;
+    amd64:CYGWIN*:*:* | x86_64:CYGWIN*:*:*)
+	echo x86_64-unknown-cygwin
+	exit ;;
+    prep*:SunOS:5.*:*)
+	echo powerpcle-unknown-solaris2"`echo "$UNAME_RELEASE"|sed -e 's/[^.]*//'`"
+	exit ;;
+    *:GNU:*:*)
+	# the GNU system
+	echo "`echo "$UNAME_MACHINE"|sed -e 's,[-/].*$,,'`-unknown-$LIBC`echo "$UNAME_RELEASE"|sed -e 's,/.*$,,'`"
+	exit ;;
+    *:GNU/*:*:*)
+	# other systems with GNU libc and userland
+	echo "$UNAME_MACHINE-unknown-`echo "$UNAME_SYSTEM" | sed 's,^[^/]*/,,' | tr "[:upper:]" "[:lower:]"``echo "$UNAME_RELEASE"|sed -e 's/[-(].*//'`-$LIBC"
+	exit ;;
+    *:Minix:*:*)
+	echo "$UNAME_MACHINE"-unknown-minix
+	exit ;;
+    aarch64:Linux:*:*)
+	echo "$UNAME_MACHINE"-unknown-linux-"$LIBC"
+	exit ;;
+    aarch64_be:Linux:*:*)
+	UNAME_MACHINE=aarch64_be
+	echo "$UNAME_MACHINE"-unknown-linux-"$LIBC"
+	exit ;;
+    alpha:Linux:*:*)
+	case `sed -n '/^cpu model/s/^.*: \(.*\)/\1/p' < /proc/cpuinfo` in
+	  EV5)   UNAME_MACHINE=alphaev5 ;;
+	  EV56)  UNAME_MACHINE=alphaev56 ;;
+	  PCA56) UNAME_MACHINE=alphapca56 ;;
+	  PCA57) UNAME_MACHINE=alphapca56 ;;
+	  EV6)   UNAME_MACHINE=alphaev6 ;;
+	  EV67)  UNAME_MACHINE=alphaev67 ;;
+	  EV68*) UNAME_MACHINE=alphaev68 ;;
+	esac
+	objdump --private-headers /bin/sh | grep -q ld.so.1
+	if test "$?" = 0 ; then LIBC=gnulibc1 ; fi
+	echo "$UNAME_MACHINE"-unknown-linux-"$LIBC"
+	exit ;;
+    arc:Linux:*:* | arceb:Linux:*:*)
+	echo "$UNAME_MACHINE"-unknown-linux-"$LIBC"
+	exit ;;
+    arm*:Linux:*:*)
+	set_cc_for_build
+	if echo __ARM_EABI__ | $CC_FOR_BUILD -E - 2>/dev/null \
+	    | grep -q __ARM_EABI__
+	then
+	    echo "$UNAME_MACHINE"-unknown-linux-"$LIBC"
+	else
+	    if echo __ARM_PCS_VFP | $CC_FOR_BUILD -E - 2>/dev/null \
+		| grep -q __ARM_PCS_VFP
+	    then
+		echo "$UNAME_MACHINE"-unknown-linux-"$LIBC"eabi
+	    else
+		echo "$UNAME_MACHINE"-unknown-linux-"$LIBC"eabihf
+	    fi
+	fi
+	exit ;;
+    avr32*:Linux:*:*)
+	echo "$UNAME_MACHINE"-unknown-linux-"$LIBC"
+	exit ;;
+    cris:Linux:*:*)
+	echo "$UNAME_MACHINE"-axis-linux-"$LIBC"
+	exit ;;
+    crisv32:Linux:*:*)
+	echo "$UNAME_MACHINE"-axis-linux-"$LIBC"
+	exit ;;
+    e2k:Linux:*:*)
+	echo "$UNAME_MACHINE"-unknown-linux-"$LIBC"
+	exit ;;
+    frv:Linux:*:*)
+	echo "$UNAME_MACHINE"-unknown-linux-"$LIBC"
+	exit ;;
+    hexagon:Linux:*:*)
+	echo "$UNAME_MACHINE"-unknown-linux-"$LIBC"
+	exit ;;
+    i*86:Linux:*:*)
+	echo "$UNAME_MACHINE"-pc-linux-"$LIBC"
+	exit ;;
+    ia64:Linux:*:*)
+	echo "$UNAME_MACHINE"-unknown-linux-"$LIBC"
+	exit ;;
+    k1om:Linux:*:*)
+	echo "$UNAME_MACHINE"-unknown-linux-"$LIBC"
+	exit ;;
+    m32r*:Linux:*:*)
+	echo "$UNAME_MACHINE"-unknown-linux-"$LIBC"
+	exit ;;
+    m68*:Linux:*:*)
+	echo "$UNAME_MACHINE"-unknown-linux-"$LIBC"
+	exit ;;
+    mips:Linux:*:* | mips64:Linux:*:*)
+	set_cc_for_build
+	sed 's/^	//' << EOF > "$dummy.c"
+	#undef CPU
+	#undef ${UNAME_MACHINE}
+	#undef ${UNAME_MACHINE}el
+	#if defined(__MIPSEL__) || defined(__MIPSEL) || defined(_MIPSEL) || defined(MIPSEL)
+	CPU=${UNAME_MACHINE}el
+	#else
+	#if defined(__MIPSEB__) || defined(__MIPSEB) || defined(_MIPSEB) || defined(MIPSEB)
+	CPU=${UNAME_MACHINE}
+	#else
+	CPU=
+	#endif
+	#endif
+EOF
+	eval "`$CC_FOR_BUILD -E "$dummy.c" 2>/dev/null | grep '^CPU'`"
+	test "x$CPU" != x && { echo "$CPU-unknown-linux-$LIBC"; exit; }
+	;;
+    mips64el:Linux:*:*)
+	echo "$UNAME_MACHINE"-unknown-linux-"$LIBC"
+	exit ;;
+    openrisc*:Linux:*:*)
+	echo or1k-unknown-linux-"$LIBC"
+	exit ;;
+    or32:Linux:*:* | or1k*:Linux:*:*)
+	echo "$UNAME_MACHINE"-unknown-linux-"$LIBC"
+	exit ;;
+    padre:Linux:*:*)
+	echo sparc-unknown-linux-"$LIBC"
+	exit ;;
+    parisc64:Linux:*:* | hppa64:Linux:*:*)
+	echo hppa64-unknown-linux-"$LIBC"
+	exit ;;
+    parisc:Linux:*:* | hppa:Linux:*:*)
+	# Look for CPU level
+	case `grep '^cpu[^a-z]*:' /proc/cpuinfo 2>/dev/null | cut -d' ' -f2` in
+	  PA7*) echo hppa1.1-unknown-linux-"$LIBC" ;;
+	  PA8*) echo hppa2.0-unknown-linux-"$LIBC" ;;
+	  *)    echo hppa-unknown-linux-"$LIBC" ;;
+	esac
+	exit ;;
+    ppc64:Linux:*:*)
+	echo powerpc64-unknown-linux-"$LIBC"
+	exit ;;
+    ppc:Linux:*:*)
+	echo powerpc-unknown-linux-"$LIBC"
+	exit ;;
+    ppc64le:Linux:*:*)
+	echo powerpc64le-unknown-linux-"$LIBC"
+	exit ;;
+    ppcle:Linux:*:*)
+	echo powerpcle-unknown-linux-"$LIBC"
+	exit ;;
+    riscv32:Linux:*:* | riscv64:Linux:*:*)
+	echo "$UNAME_MACHINE"-unknown-linux-"$LIBC"
+	exit ;;
+    s390:Linux:*:* | s390x:Linux:*:*)
+	echo "$UNAME_MACHINE"-ibm-linux-"$LIBC"
+	exit ;;
+    sh64*:Linux:*:*)
+	echo "$UNAME_MACHINE"-unknown-linux-"$LIBC"
+	exit ;;
+    sh*:Linux:*:*)
+	echo "$UNAME_MACHINE"-unknown-linux-"$LIBC"
+	exit ;;
+    sparc:Linux:*:* | sparc64:Linux:*:*)
+	echo "$UNAME_MACHINE"-unknown-linux-"$LIBC"
+	exit ;;
+    tile*:Linux:*:*)
+	echo "$UNAME_MACHINE"-unknown-linux-"$LIBC"
+	exit ;;
+    vax:Linux:*:*)
+	echo "$UNAME_MACHINE"-dec-linux-"$LIBC"
+	exit ;;
+    x86_64:Linux:*:*)
+	echo "$UNAME_MACHINE"-pc-linux-"$LIBC"
+	exit ;;
+    xtensa*:Linux:*:*)
+	echo "$UNAME_MACHINE"-unknown-linux-"$LIBC"
+	exit ;;
+    i*86:DYNIX/ptx:4*:*)
+	# ptx 4.0 does uname -s correctly, with DYNIX/ptx in there.
+	# earlier versions are messed up and put the nodename in both
+	# sysname and nodename.
+	echo i386-sequent-sysv4
+	exit ;;
+    i*86:UNIX_SV:4.2MP:2.*)
+	# Unixware is an offshoot of SVR4, but it has its own version
+	# number series starting with 2...
+	# I am not positive that other SVR4 systems won't match this,
+	# I just have to hope.  -- rms.
+	# Use sysv4.2uw... so that sysv4* matches it.
+	echo "$UNAME_MACHINE"-pc-sysv4.2uw"$UNAME_VERSION"
+	exit ;;
+    i*86:OS/2:*:*)
+	# If we were able to find `uname', then EMX Unix compatibility
+	# is probably installed.
+	echo "$UNAME_MACHINE"-pc-os2-emx
+	exit ;;
+    i*86:XTS-300:*:STOP)
+	echo "$UNAME_MACHINE"-unknown-stop
+	exit ;;
+    i*86:atheos:*:*)
+	echo "$UNAME_MACHINE"-unknown-atheos
+	exit ;;
+    i*86:syllable:*:*)
+	echo "$UNAME_MACHINE"-pc-syllable
+	exit ;;
+    i*86:LynxOS:2.*:* | i*86:LynxOS:3.[01]*:* | i*86:LynxOS:4.[02]*:*)
+	echo i386-unknown-lynxos"$UNAME_RELEASE"
+	exit ;;
+    i*86:*DOS:*:*)
+	echo "$UNAME_MACHINE"-pc-msdosdjgpp
+	exit ;;
+    i*86:*:4.*:*)
+	UNAME_REL=`echo "$UNAME_RELEASE" | sed 's/\/MP$//'`
+	if grep Novell /usr/include/link.h >/dev/null 2>/dev/null; then
+		echo "$UNAME_MACHINE"-univel-sysv"$UNAME_REL"
+	else
+		echo "$UNAME_MACHINE"-pc-sysv"$UNAME_REL"
+	fi
+	exit ;;
+    i*86:*:5:[678]*)
+	# UnixWare 7.x, OpenUNIX and OpenServer 6.
+	case `/bin/uname -X | grep "^Machine"` in
+	    *486*)	     UNAME_MACHINE=i486 ;;
+	    *Pentium)	     UNAME_MACHINE=i586 ;;
+	    *Pent*|*Celeron) UNAME_MACHINE=i686 ;;
+	esac
+	echo "$UNAME_MACHINE-unknown-sysv${UNAME_RELEASE}${UNAME_SYSTEM}{$UNAME_VERSION}"
+	exit ;;
+    i*86:*:3.2:*)
+	if test -f /usr/options/cb.name; then
+		UNAME_REL=`sed -n 's/.*Version //p' </usr/options/cb.name`
+		echo "$UNAME_MACHINE"-pc-isc"$UNAME_REL"
+	elif /bin/uname -X 2>/dev/null >/dev/null ; then
+		UNAME_REL=`(/bin/uname -X|grep Release|sed -e 's/.*= //')`
+		(/bin/uname -X|grep i80486 >/dev/null) && UNAME_MACHINE=i486
+		(/bin/uname -X|grep '^Machine.*Pentium' >/dev/null) \
+			&& UNAME_MACHINE=i586
+		(/bin/uname -X|grep '^Machine.*Pent *II' >/dev/null) \
+			&& UNAME_MACHINE=i686
+		(/bin/uname -X|grep '^Machine.*Pentium Pro' >/dev/null) \
+			&& UNAME_MACHINE=i686
+		echo "$UNAME_MACHINE"-pc-sco"$UNAME_REL"
+	else
+		echo "$UNAME_MACHINE"-pc-sysv32
+	fi
+	exit ;;
+    pc:*:*:*)
+	# Left here for compatibility:
+	# uname -m prints for DJGPP always 'pc', but it prints nothing about
+	# the processor, so we play safe by assuming i586.
+	# Note: whatever this is, it MUST be the same as what config.sub
+	# prints for the "djgpp" host, or else GDB configure will decide that
+	# this is a cross-build.
+	echo i586-pc-msdosdjgpp
+	exit ;;
+    Intel:Mach:3*:*)
+	echo i386-pc-mach3
+	exit ;;
+    paragon:*:*:*)
+	echo i860-intel-osf1
+	exit ;;
+    i860:*:4.*:*) # i860-SVR4
+	if grep Stardent /usr/include/sys/uadmin.h >/dev/null 2>&1 ; then
+	  echo i860-stardent-sysv"$UNAME_RELEASE" # Stardent Vistra i860-SVR4
+	else # Add other i860-SVR4 vendors below as they are discovered.
+	  echo i860-unknown-sysv"$UNAME_RELEASE"  # Unknown i860-SVR4
+	fi
+	exit ;;
+    mini*:CTIX:SYS*5:*)
+	# "miniframe"
+	echo m68010-convergent-sysv
+	exit ;;
+    mc68k:UNIX:SYSTEM5:3.51m)
+	echo m68k-convergent-sysv
+	exit ;;
+    M680?0:D-NIX:5.3:*)
+	echo m68k-diab-dnix
+	exit ;;
+    M68*:*:R3V[5678]*:*)
+	test -r /sysV68 && { echo 'm68k-motorola-sysv'; exit; } ;;
+    3[345]??:*:4.0:3.0 | 3[34]??A:*:4.0:3.0 | 3[34]??,*:*:4.0:3.0 | 3[34]??/*:*:4.0:3.0 | 4400:*:4.0:3.0 | 4850:*:4.0:3.0 | SKA40:*:4.0:3.0 | SDS2:*:4.0:3.0 | SHG2:*:4.0:3.0 | S7501*:*:4.0:3.0)
+	OS_REL=''
+	test -r /etc/.relid \
+	&& OS_REL=.`sed -n 's/[^ ]* [^ ]* \([0-9][0-9]\).*/\1/p' < /etc/.relid`
+	/bin/uname -p 2>/dev/null | grep 86 >/dev/null \
+	  && { echo i486-ncr-sysv4.3"$OS_REL"; exit; }
+	/bin/uname -p 2>/dev/null | /bin/grep entium >/dev/null \
+	  && { echo i586-ncr-sysv4.3"$OS_REL"; exit; } ;;
+    3[34]??:*:4.0:* | 3[34]??,*:*:4.0:*)
+	/bin/uname -p 2>/dev/null | grep 86 >/dev/null \
+	  && { echo i486-ncr-sysv4; exit; } ;;
+    NCR*:*:4.2:* | MPRAS*:*:4.2:*)
+	OS_REL='.3'
+	test -r /etc/.relid \
+	    && OS_REL=.`sed -n 's/[^ ]* [^ ]* \([0-9][0-9]\).*/\1/p' < /etc/.relid`
+	/bin/uname -p 2>/dev/null | grep 86 >/dev/null \
+	    && { echo i486-ncr-sysv4.3"$OS_REL"; exit; }
+	/bin/uname -p 2>/dev/null | /bin/grep entium >/dev/null \
+	    && { echo i586-ncr-sysv4.3"$OS_REL"; exit; }
+	/bin/uname -p 2>/dev/null | /bin/grep pteron >/dev/null \
+	    && { echo i586-ncr-sysv4.3"$OS_REL"; exit; } ;;
+    m68*:LynxOS:2.*:* | m68*:LynxOS:3.0*:*)
+	echo m68k-unknown-lynxos"$UNAME_RELEASE"
+	exit ;;
+    mc68030:UNIX_System_V:4.*:*)
+	echo m68k-atari-sysv4
+	exit ;;
+    TSUNAMI:LynxOS:2.*:*)
+	echo sparc-unknown-lynxos"$UNAME_RELEASE"
+	exit ;;
+    rs6000:LynxOS:2.*:*)
+	echo rs6000-unknown-lynxos"$UNAME_RELEASE"
+	exit ;;
+    PowerPC:LynxOS:2.*:* | PowerPC:LynxOS:3.[01]*:* | PowerPC:LynxOS:4.[02]*:*)
+	echo powerpc-unknown-lynxos"$UNAME_RELEASE"
+	exit ;;
+    SM[BE]S:UNIX_SV:*:*)
+	echo mips-dde-sysv"$UNAME_RELEASE"
+	exit ;;
+    RM*:ReliantUNIX-*:*:*)
+	echo mips-sni-sysv4
+	exit ;;
+    RM*:SINIX-*:*:*)
+	echo mips-sni-sysv4
+	exit ;;
+    *:SINIX-*:*:*)
+	if uname -p 2>/dev/null >/dev/null ; then
+		UNAME_MACHINE=`(uname -p) 2>/dev/null`
+		echo "$UNAME_MACHINE"-sni-sysv4
+	else
+		echo ns32k-sni-sysv
+	fi
+	exit ;;
+    PENTIUM:*:4.0*:*)	# Unisys `ClearPath HMP IX 4000' SVR4/MP effort
+			# says <Richard.M.Bartel@ccMail.Census.GOV>
+	echo i586-unisys-sysv4
+	exit ;;
+    *:UNIX_System_V:4*:FTX*)
+	# From Gerald Hewes <hewes@openmarket.com>.
+	# How about differentiating between stratus architectures? -djm
+	echo hppa1.1-stratus-sysv4
+	exit ;;
+    *:*:*:FTX*)
+	# From seanf@swdc.stratus.com.
+	echo i860-stratus-sysv4
+	exit ;;
+    i*86:VOS:*:*)
+	# From Paul.Green@stratus.com.
+	echo "$UNAME_MACHINE"-stratus-vos
+	exit ;;
+    *:VOS:*:*)
+	# From Paul.Green@stratus.com.
+	echo hppa1.1-stratus-vos
+	exit ;;
+    mc68*:A/UX:*:*)
+	echo m68k-apple-aux"$UNAME_RELEASE"
+	exit ;;
+    news*:NEWS-OS:6*:*)
+	echo mips-sony-newsos6
+	exit ;;
+    R[34]000:*System_V*:*:* | R4000:UNIX_SYSV:*:* | R*000:UNIX_SV:*:*)
+	if [ -d /usr/nec ]; then
+		echo mips-nec-sysv"$UNAME_RELEASE"
+	else
+		echo mips-unknown-sysv"$UNAME_RELEASE"
+	fi
+	exit ;;
+    BeBox:BeOS:*:*)	# BeOS running on hardware made by Be, PPC only.
+	echo powerpc-be-beos
+	exit ;;
+    BeMac:BeOS:*:*)	# BeOS running on Mac or Mac clone, PPC only.
+	echo powerpc-apple-beos
+	exit ;;
+    BePC:BeOS:*:*)	# BeOS running on Intel PC compatible.
+	echo i586-pc-beos
+	exit ;;
+    BePC:Haiku:*:*)	# Haiku running on Intel PC compatible.
+	echo i586-pc-haiku
+	exit ;;
+    x86_64:Haiku:*:*)
+	echo x86_64-unknown-haiku
+	exit ;;
+    SX-4:SUPER-UX:*:*)
+	echo sx4-nec-superux"$UNAME_RELEASE"
+	exit ;;
+    SX-5:SUPER-UX:*:*)
+	echo sx5-nec-superux"$UNAME_RELEASE"
+	exit ;;
+    SX-6:SUPER-UX:*:*)
+	echo sx6-nec-superux"$UNAME_RELEASE"
+	exit ;;
+    SX-7:SUPER-UX:*:*)
+	echo sx7-nec-superux"$UNAME_RELEASE"
+	exit ;;
+    SX-8:SUPER-UX:*:*)
+	echo sx8-nec-superux"$UNAME_RELEASE"
+	exit ;;
+    SX-8R:SUPER-UX:*:*)
+	echo sx8r-nec-superux"$UNAME_RELEASE"
+	exit ;;
+    SX-ACE:SUPER-UX:*:*)
+	echo sxace-nec-superux"$UNAME_RELEASE"
+	exit ;;
+    Power*:Rhapsody:*:*)
+	echo powerpc-apple-rhapsody"$UNAME_RELEASE"
+	exit ;;
+    *:Rhapsody:*:*)
+	echo "$UNAME_MACHINE"-apple-rhapsody"$UNAME_RELEASE"
+	exit ;;
+    *:Darwin:*:*)
+	UNAME_PROCESSOR=`uname -p` || UNAME_PROCESSOR=unknown
+	set_cc_for_build
+	if test "$UNAME_PROCESSOR" = unknown ; then
+	    UNAME_PROCESSOR=powerpc
+	fi
+	if test "`echo "$UNAME_RELEASE" | sed -e 's/\..*//'`" -le 10 ; then
+	    if [ "$CC_FOR_BUILD" != no_compiler_found ]; then
+		if (echo '#ifdef __LP64__'; echo IS_64BIT_ARCH; echo '#endif') | \
+		       (CCOPTS="" $CC_FOR_BUILD -E - 2>/dev/null) | \
+		       grep IS_64BIT_ARCH >/dev/null
+		then
+		    case $UNAME_PROCESSOR in
+			i386) UNAME_PROCESSOR=x86_64 ;;
+			powerpc) UNAME_PROCESSOR=powerpc64 ;;
+		    esac
+		fi
+		# On 10.4-10.6 one might compile for PowerPC via gcc -arch ppc
+		if (echo '#ifdef __POWERPC__'; echo IS_PPC; echo '#endif') | \
+		       (CCOPTS="" $CC_FOR_BUILD -E - 2>/dev/null) | \
+		       grep IS_PPC >/dev/null
+		then
+		    UNAME_PROCESSOR=powerpc
+		fi
+	    fi
+	elif test "$UNAME_PROCESSOR" = i386 ; then
+	    # Avoid executing cc on OS X 10.9, as it ships with a stub
+	    # that puts up a graphical alert prompting to install
+	    # developer tools.  Any system running Mac OS X 10.7 or
+	    # later (Darwin 11 and later) is required to have a 64-bit
+	    # processor. This is not true of the ARM version of Darwin
+	    # that Apple uses in portable devices.
+	    UNAME_PROCESSOR=x86_64
+	fi
+	echo "$UNAME_PROCESSOR"-apple-darwin"$UNAME_RELEASE"
+	exit ;;
+    *:procnto*:*:* | *:QNX:[0123456789]*:*)
+	UNAME_PROCESSOR=`uname -p`
+	if test "$UNAME_PROCESSOR" = x86; then
+		UNAME_PROCESSOR=i386
+		UNAME_MACHINE=pc
+	fi
+	echo "$UNAME_PROCESSOR"-"$UNAME_MACHINE"-nto-qnx"$UNAME_RELEASE"
+	exit ;;
+    *:QNX:*:4*)
+	echo i386-pc-qnx
+	exit ;;
+    NEO-*:NONSTOP_KERNEL:*:*)
+	echo neo-tandem-nsk"$UNAME_RELEASE"
+	exit ;;
+    NSE-*:NONSTOP_KERNEL:*:*)
+	echo nse-tandem-nsk"$UNAME_RELEASE"
+	exit ;;
+    NSR-*:NONSTOP_KERNEL:*:*)
+	echo nsr-tandem-nsk"$UNAME_RELEASE"
+	exit ;;
+    NSV-*:NONSTOP_KERNEL:*:*)
+	echo nsv-tandem-nsk"$UNAME_RELEASE"
+	exit ;;
+    NSX-*:NONSTOP_KERNEL:*:*)
+	echo nsx-tandem-nsk"$UNAME_RELEASE"
+	exit ;;
+    *:NonStop-UX:*:*)
+	echo mips-compaq-nonstopux
+	exit ;;
+    BS2000:POSIX*:*:*)
+	echo bs2000-siemens-sysv
+	exit ;;
+    DS/*:UNIX_System_V:*:*)
+	echo "$UNAME_MACHINE"-"$UNAME_SYSTEM"-"$UNAME_RELEASE"
+	exit ;;
+    *:Plan9:*:*)
+	# "uname -m" is not consistent, so use $cputype instead. 386
+	# is converted to i386 for consistency with other x86
+	# operating systems.
+	# shellcheck disable=SC2154
+	if test "$cputype" = 386; then
+	    UNAME_MACHINE=i386
+	else
+	    UNAME_MACHINE="$cputype"
+	fi
+	echo "$UNAME_MACHINE"-unknown-plan9
+	exit ;;
+    *:TOPS-10:*:*)
+	echo pdp10-unknown-tops10
+	exit ;;
+    *:TENEX:*:*)
+	echo pdp10-unknown-tenex
+	exit ;;
+    KS10:TOPS-20:*:* | KL10:TOPS-20:*:* | TYPE4:TOPS-20:*:*)
+	echo pdp10-dec-tops20
+	exit ;;
+    XKL-1:TOPS-20:*:* | TYPE5:TOPS-20:*:*)
+	echo pdp10-xkl-tops20
+	exit ;;
+    *:TOPS-20:*:*)
+	echo pdp10-unknown-tops20
+	exit ;;
+    *:ITS:*:*)
+	echo pdp10-unknown-its
+	exit ;;
+    SEI:*:*:SEIUX)
+	echo mips-sei-seiux"$UNAME_RELEASE"
+	exit ;;
+    *:DragonFly:*:*)
+	echo "$UNAME_MACHINE"-unknown-dragonfly"`echo "$UNAME_RELEASE"|sed -e 's/[-(].*//'`"
+	exit ;;
+    *:*VMS:*:*)
+	UNAME_MACHINE=`(uname -p) 2>/dev/null`
+	case "$UNAME_MACHINE" in
+	    A*) echo alpha-dec-vms ; exit ;;
+	    I*) echo ia64-dec-vms ; exit ;;
+	    V*) echo vax-dec-vms ; exit ;;
+	esac ;;
+    *:XENIX:*:SysV)
+	echo i386-pc-xenix
+	exit ;;
+    i*86:skyos:*:*)
+	echo "$UNAME_MACHINE"-pc-skyos"`echo "$UNAME_RELEASE" | sed -e 's/ .*$//'`"
+	exit ;;
+    i*86:rdos:*:*)
+	echo "$UNAME_MACHINE"-pc-rdos
+	exit ;;
+    i*86:AROS:*:*)
+	echo "$UNAME_MACHINE"-pc-aros
+	exit ;;
+    x86_64:VMkernel:*:*)
+	echo "$UNAME_MACHINE"-unknown-esx
+	exit ;;
+    amd64:Isilon\ OneFS:*:*)
+	echo x86_64-unknown-onefs
+	exit ;;
+esac
+
+echo "$0: unable to guess system type" >&2
+
+case "$UNAME_MACHINE:$UNAME_SYSTEM" in
+    mips:Linux | mips64:Linux)
+	# If we got here on MIPS GNU/Linux, output extra information.
+	cat >&2 <<EOF
+
+NOTE: MIPS GNU/Linux systems require a C compiler to fully recognize
+the system type. Please install a C compiler and try again.
+EOF
+	;;
+esac
+
+cat >&2 <<EOF
+
+This script (version $timestamp), has failed to recognize the
+operating system you are using. If your script is old, overwrite *all*
+copies of config.guess and config.sub with the latest versions from:
+
+  https://git.savannah.gnu.org/gitweb/?p=config.git;a=blob_plain;f=config.guess
+and
+  https://git.savannah.gnu.org/gitweb/?p=config.git;a=blob_plain;f=config.sub
+
+If $0 has already been updated, send the following data and any
+information you think might be pertinent to config-patches@gnu.org to
+provide the necessary information to handle your system.
+
+config.guess timestamp = $timestamp
+
+uname -m = `(uname -m) 2>/dev/null || echo unknown`
+uname -r = `(uname -r) 2>/dev/null || echo unknown`
+uname -s = `(uname -s) 2>/dev/null || echo unknown`
+uname -v = `(uname -v) 2>/dev/null || echo unknown`
+
+/usr/bin/uname -p = `(/usr/bin/uname -p) 2>/dev/null`
+/bin/uname -X     = `(/bin/uname -X) 2>/dev/null`
+
+hostinfo               = `(hostinfo) 2>/dev/null`
+/bin/universe          = `(/bin/universe) 2>/dev/null`
+/usr/bin/arch -k       = `(/usr/bin/arch -k) 2>/dev/null`
+/bin/arch              = `(/bin/arch) 2>/dev/null`
+/usr/bin/oslevel       = `(/usr/bin/oslevel) 2>/dev/null`
+/usr/convex/getsysinfo = `(/usr/convex/getsysinfo) 2>/dev/null`
+
+UNAME_MACHINE = "$UNAME_MACHINE"
+UNAME_RELEASE = "$UNAME_RELEASE"
+UNAME_SYSTEM  = "$UNAME_SYSTEM"
+UNAME_VERSION = "$UNAME_VERSION"
+EOF
+
+exit 1
+
+# Local variables:
+# eval: (add-hook 'before-save-hook 'time-stamp)
+# time-stamp-start: "timestamp='"
+# time-stamp-format: "%:y-%02m-%02d"
+# time-stamp-end: "'"
+# End:
diff --git a/config.h.in b/config.h.in
new file mode 100644
index 0000000..dc4c2d5
--- /dev/null
+++ b/config.h.in
@@ -0,0 +1,968 @@
+/* config.h.in.  Generated from configure.ac by autoheader.  */
+
+/* Configuration settings */
+#undef CONFIGURE_DEFINES
+
+/* special build string */
+#undef CONFIGURE_SPECIAL_BUILD
+
+/* Use memory debugging function in OpenSSL */
+#undef CRYPTO_MDEBUG
+
+/* p11-kit proxy */
+#undef DEFAULT_PKCS11_MODULE
+
+/* Use dmalloc memory debugging library */
+#undef DMALLOC
+
+/* Dimension to use for empty array declaration */
+#undef EMPTY_ARRAY_SIZE
+
+/* Enable async push */
+#undef ENABLE_ASYNC_PUSH
+
+/* Enable compression stub capability */
+#undef ENABLE_COMP_STUB
+
+/* Use mbed TLS library */
+#undef ENABLE_CRYPTO_MBEDTLS
+
+/* Use OpenSSL library */
+#undef ENABLE_CRYPTO_OPENSSL
+
+/* Enable debugging support */
+#undef ENABLE_DEBUG
+
+/* Enable deferred authentication */
+#undef ENABLE_DEF_AUTH
+
+/* We have persist tun capability */
+#undef ENABLE_FEATURE_TUN_PERSIST
+
+/* Enable internal fragmentation support */
+#undef ENABLE_FRAGMENT
+
+/* enable iproute2 support */
+#undef ENABLE_IPROUTE
+
+/* Enable LZ4 compression library */
+#undef ENABLE_LZ4
+
+/* Enable LZO compression library */
+#undef ENABLE_LZO
+
+/* Enable management server capability */
+#undef ENABLE_MANAGEMENT
+
+/* Enable multi-homed UDP server capability */
+#undef ENABLE_MULTIHOME
+
+/* Enable OFB and CFB cipher modes */
+#undef ENABLE_OFB_CFB_MODE
+
+/* Enable internal packet filter */
+#undef ENABLE_PF
+
+/* Enable PKCS11 */
+#undef ENABLE_PKCS11
+
+/* Enable plug-in support */
+#undef ENABLE_PLUGIN
+
+/* Enable TCP Server port sharing */
+#undef ENABLE_PORT_SHARE
+
+/* SELinux support */
+#undef ENABLE_SELINUX
+
+/* enable sitnl support */
+#undef ENABLE_SITNL
+
+/* Enable smaller executable size */
+#undef ENABLE_SMALL
+
+/* Enable strict options check between peers */
+#undef ENABLE_STRICT_OPTIONS_CHECK
+
+/* Enable systemd integration */
+#undef ENABLE_SYSTEMD
+
+/* Enable --x509-username-field feature */
+#undef ENABLE_X509ALTUSERNAME
+
+/* Define to 1 if you have the `accept' function. */
+#undef HAVE_ACCEPT
+
+/* Define to 1 if you have the `access' function. */
+#undef HAVE_ACCESS
+
+/* Compiler supports anonymous unions */
+#undef HAVE_ANONYMOUS_UNION_SUPPORT
+
+/* Define to 1 if you have the <arpa/inet.h> header file. */
+#undef HAVE_ARPA_INET_H
+
+/* Define to 1 if you have the `basename' function. */
+#undef HAVE_BASENAME
+
+/* Define to 1 if you have the `bind' function. */
+#undef HAVE_BIND
+
+/* Define to 1 if you have the `chdir' function. */
+#undef HAVE_CHDIR
+
+/* Define to 1 if you have the `chroot' function. */
+#undef HAVE_CHROOT
+
+/* Define to 1 if you have the `chsize' function. */
+#undef HAVE_CHSIZE
+
+/* struct cmsghdr needed for extended socket error support */
+#undef HAVE_CMSGHDR
+
+/* extra version available in config-version.h */
+#undef HAVE_CONFIG_VERSION_H
+
+/* Define to 1 if you have the `connect' function. */
+#undef HAVE_CONNECT
+
+/* Define to 1 if your compiler supports GNU GCC-style variadic macros */
+#undef HAVE_CPP_VARARG_MACRO_GCC
+
+/* Define to 1 if your compiler supports ISO C99 variadic macros */
+#undef HAVE_CPP_VARARG_MACRO_ISO
+
+/* Define to 1 if you have the `ctime' function. */
+#undef HAVE_CTIME
+
+/* Define to 1 if you have the <ctype.h> header file. */
+#undef HAVE_CTYPE_H
+
+/* Define to 1 if you have the `daemon' function. */
+#undef HAVE_DAEMON
+
+/* Define to 1 if you have the declaration of `SIGHUP', and to 0 if you don't.
+   */
+#undef HAVE_DECL_SIGHUP
+
+/* Define to 1 if you have the declaration of `SIGINT', and to 0 if you don't.
+   */
+#undef HAVE_DECL_SIGINT
+
+/* Define to 1 if you have the declaration of `SIGTERM', and to 0 if you
+   don't. */
+#undef HAVE_DECL_SIGTERM
+
+/* Define to 1 if you have the declaration of `SIGUSR1', and to 0 if you
+   don't. */
+#undef HAVE_DECL_SIGUSR1
+
+/* Define to 1 if you have the declaration of `SIGUSR2', and to 0 if you
+   don't. */
+#undef HAVE_DECL_SIGUSR2
+
+/* Define to 1 if you have the declaration of `SO_MARK', and to 0 if you
+   don't. */
+#undef HAVE_DECL_SO_MARK
+
+/* Define to 1 if you have the declaration of `TUNSETPERSIST', and to 0 if you
+   don't. */
+#undef HAVE_DECL_TUNSETPERSIST
+
+/* Define to 1 if you have the <direct.h> header file. */
+#undef HAVE_DIRECT_H
+
+/* Define to 1 if you have the `dirname' function. */
+#undef HAVE_DIRNAME
+
+/* Define to 1 if you have the <dlfcn.h> header file. */
+#undef HAVE_DLFCN_H
+
+/* Define to 1 if you have the <dmalloc.h> header file. */
+#undef HAVE_DMALLOC_H
+
+/* Define to 1 if you have the `DSA_bits' function. */
+#undef HAVE_DSA_BITS
+
+/* Define to 1 if you have the `DSA_get0_pqg' function. */
+#undef HAVE_DSA_GET0_PQG
+
+/* Define to 1 if you have the `dup' function. */
+#undef HAVE_DUP
+
+/* Define to 1 if you have the `dup2' function. */
+#undef HAVE_DUP2
+
+/* Define to 1 if you have the `EC_GROUP_order_bits' function. */
+#undef HAVE_EC_GROUP_ORDER_BITS
+
+/* Define to 1 if you have the `ENGINE_cleanup' function. */
+#undef HAVE_ENGINE_CLEANUP
+
+/* Define to 1 if you have the `ENGINE_load_builtin_engines' function. */
+#undef HAVE_ENGINE_LOAD_BUILTIN_ENGINES
+
+/* Define to 1 if you have the `ENGINE_register_all_complete' function. */
+#undef HAVE_ENGINE_REGISTER_ALL_COMPLETE
+
+/* Define to 1 if you have the `epoll_create' function. */
+#undef HAVE_EPOLL_CREATE
+
+/* Define to 1 if you have the <errno.h> header file. */
+#undef HAVE_ERRNO_H
+
+/* Define to 1 if you have the <err.h> header file. */
+#undef HAVE_ERR_H
+
+/* Define to 1 if you have the `EVP_CIPHER_CTX_reset' function. */
+#undef HAVE_EVP_CIPHER_CTX_RESET
+
+/* Define to 1 if you have the `EVP_CIPHER_CTX_set_key_length' function. */
+#undef HAVE_EVP_CIPHER_CTX_SET_KEY_LENGTH
+
+/* Define to 1 if you have the `EVP_MD_CTX_free' function. */
+#undef HAVE_EVP_MD_CTX_FREE
+
+/* Define to 1 if you have the `EVP_MD_CTX_new' function. */
+#undef HAVE_EVP_MD_CTX_NEW
+
+/* Define to 1 if you have the `EVP_MD_CTX_reset' function. */
+#undef HAVE_EVP_MD_CTX_RESET
+
+/* Define to 1 if you have the `EVP_PKEY_get0_DSA' function. */
+#undef HAVE_EVP_PKEY_GET0_DSA
+
+/* Define to 1 if you have the `EVP_PKEY_get0_EC_KEY' function. */
+#undef HAVE_EVP_PKEY_GET0_EC_KEY
+
+/* Define to 1 if you have the `EVP_PKEY_get0_RSA' function. */
+#undef HAVE_EVP_PKEY_GET0_RSA
+
+/* Define to 1 if you have the `execve' function. */
+#undef HAVE_EXECVE
+
+/* Crypto library supports keying material exporter */
+#undef HAVE_EXPORT_KEYING_MATERIAL
+
+/* Define to 1 if you have the <fcntl.h> header file. */
+#undef HAVE_FCNTL_H
+
+/* Define to 1 if you have the `flock' function. */
+#undef HAVE_FLOCK
+
+/* Define to 1 if you have the `fork' function. */
+#undef HAVE_FORK
+
+/* Define to 1 if you have the `ftruncate' function. */
+#undef HAVE_FTRUNCATE
+
+/* Define to 1 if you have the `getgrnam' function. */
+#undef HAVE_GETGRNAM
+
+/* Define to 1 if you have the `gethostbyname' function. */
+#undef HAVE_GETHOSTBYNAME
+
+/* Define to 1 if you have the `getpass' function. */
+#undef HAVE_GETPASS
+
+/* Define to 1 if you have the `getpeereid' function. */
+#undef HAVE_GETPEEREID
+
+/* Define to 1 if you have the `getpeername' function. */
+#undef HAVE_GETPEERNAME
+
+/* Define to 1 if you have the `getpid' function. */
+#undef HAVE_GETPID
+
+/* Define to 1 if you have the `getpwnam' function. */
+#undef HAVE_GETPWNAM
+
+/* Define to 1 if you have the `getsockname' function. */
+#undef HAVE_GETSOCKNAME
+
+/* Define to 1 if you have the `getsockopt' function. */
+#undef HAVE_GETSOCKOPT
+
+/* Define to 1 if you have the `gettimeofday' function. */
+#undef HAVE_GETTIMEOFDAY
+
+/* Define to 1 if you have the <grp.h> header file. */
+#undef HAVE_GRP_H
+
+/* Define to 1 if you have the `HMAC_CTX_free' function. */
+#undef HAVE_HMAC_CTX_FREE
+
+/* Define to 1 if you have the `HMAC_CTX_new' function. */
+#undef HAVE_HMAC_CTX_NEW
+
+/* Define to 1 if you have the `HMAC_CTX_reset' function. */
+#undef HAVE_HMAC_CTX_RESET
+
+/* Define to 1 if you have the `inet_ntoa' function. */
+#undef HAVE_INET_NTOA
+
+/* Define to 1 if you have the `inet_ntop' function. */
+#undef HAVE_INET_NTOP
+
+/* Define to 1 if you have the `inet_pton' function. */
+#undef HAVE_INET_PTON
+
+/* Define to 1 if you have the <inttypes.h> header file. */
+#undef HAVE_INTTYPES_H
+
+/* Define to 1 if the system has the type `in_addr_t'. */
+#undef HAVE_IN_ADDR_T
+
+/* struct in_pktinfo needed for IP_PKTINFO support */
+#undef HAVE_IN_PKTINFO
+
+/* Define to 1 if the system has the type `in_port_t'. */
+#undef HAVE_IN_PORT_T
+
+/* struct iovec needed for IPv6 support */
+#undef HAVE_IOVEC
+
+/* Define to 1 if you have the <io.h> header file. */
+#undef HAVE_IO_H
+
+/* struct iphdr needed for IPv6 support */
+#undef HAVE_IPHDR
+
+/* struct in_pktinfo.ipi_spec_dst needed for IP_PKTINFO support */
+#undef HAVE_IPI_SPEC_DST
+
+/* Define to 1 if you have the <libgen.h> header file. */
+#undef HAVE_LIBGEN_H
+
+/* Define to 1 if you have the `lz4' library (-llz4). */
+#undef HAVE_LIBLZ4
+
+/* Define to 1 if you have the <limits.h> header file. */
+#undef HAVE_LIMITS_H
+
+/* Define to 1 if you have the <linux/if_tun.h> header file. */
+#undef HAVE_LINUX_IF_TUN_H
+
+/* Define to 1 if you have the <linux/sockios.h> header file. */
+#undef HAVE_LINUX_SOCKIOS_H
+
+/* Define to 1 if you have the <linux/types.h> header file. */
+#undef HAVE_LINUX_TYPES_H
+
+/* Define to 1 if you have the `listen' function. */
+#undef HAVE_LISTEN
+
+/* Define to 1 if you have the <lz4.h> header file. */
+#undef HAVE_LZ4_H
+
+/* Define to 1 if you have the <lzo1x.h> header file. */
+#undef HAVE_LZO1X_H
+
+/* Define to 1 if you have the <lzoutil.h> header file. */
+#undef HAVE_LZOUTIL_H
+
+/* Define to 1 if you have the <lzo/lzo1x.h> header file. */
+#undef HAVE_LZO_LZO1X_H
+
+/* Define to 1 if you have the <lzo/lzoutil.h> header file. */
+#undef HAVE_LZO_LZOUTIL_H
+
+/* Define to 1 if you have the `mbedtls_cipher_check_tag' function. */
+#undef HAVE_MBEDTLS_CIPHER_CHECK_TAG
+
+/* Define to 1 if you have the `mbedtls_cipher_write_tag' function. */
+#undef HAVE_MBEDTLS_CIPHER_WRITE_TAG
+
+/* Define to 1 if you have the <memory.h> header file. */
+#undef HAVE_MEMORY_H
+
+/* Define to 1 if you have the `memset' function. */
+#undef HAVE_MEMSET
+
+/* Define to 1 if you have the `mlockall' function. */
+#undef HAVE_MLOCKALL
+
+/* struct msghdr needed for extended socket error support */
+#undef HAVE_MSGHDR
+
+/* Define to 1 if you have the <netdb.h> header file. */
+#undef HAVE_NETDB_H
+
+/* Define to 1 if you have the <netinet/in.h> header file. */
+#undef HAVE_NETINET_IN_H
+
+/* Define to 1 if you have the <netinet/in_systm.h> header file. */
+#undef HAVE_NETINET_IN_SYSTM_H
+
+/* Define to 1 if you have the <netinet/ip.h> header file. */
+#undef HAVE_NETINET_IP_H
+
+/* Define to 1 if you have the <netinet/tcp.h> header file. */
+#undef HAVE_NETINET_TCP_H
+
+/* Define to 1 if you have the <net/if.h> header file. */
+#undef HAVE_NET_IF_H
+
+/* Define to 1 if you have the <net/if_tun.h> header file. */
+#undef HAVE_NET_IF_TUN_H
+
+/* Define to 1 if you have the <net/if_utun.h> header file. */
+#undef HAVE_NET_IF_UTUN_H
+
+/* Define to 1 if you have the <net/tun/if_tun.h> header file. */
+#undef HAVE_NET_TUN_IF_TUN_H
+
+/* Define to 1 if you have the `nice' function. */
+#undef HAVE_NICE
+
+/* Define to 1 if you have the `openlog' function. */
+#undef HAVE_OPENLOG
+
+/* OpenSSL engine support available */
+#undef HAVE_OPENSSL_ENGINE
+
+/* Define to 1 if you have the `OpenSSL_version' function. */
+#undef HAVE_OPENSSL_VERSION
+
+/* Define to 1 if you have the `poll' function. */
+#undef HAVE_POLL
+
+/* Define to 1 if you have the <poll.h> header file. */
+#undef HAVE_POLL_H
+
+/* Define to 1 if you have the `putenv' function. */
+#undef HAVE_PUTENV
+
+/* Define to 1 if you have the <pwd.h> header file. */
+#undef HAVE_PWD_H
+
+/* Define to 1 if you have the `readv' function. */
+#undef HAVE_READV
+
+/* Define to 1 if you have the `recv' function. */
+#undef HAVE_RECV
+
+/* Define to 1 if you have the `recvfrom' function. */
+#undef HAVE_RECVFROM
+
+/* Define to 1 if you have the `recvmsg' function. */
+#undef HAVE_RECVMSG
+
+/* Define to 1 if you have the <resolv.h> header file. */
+#undef HAVE_RESOLV_H
+
+/* Define to 1 if you have the `RSA_bits' function. */
+#undef HAVE_RSA_BITS
+
+/* Define to 1 if you have the `RSA_get0_key' function. */
+#undef HAVE_RSA_GET0_KEY
+
+/* Define to 1 if you have the `RSA_meth_free' function. */
+#undef HAVE_RSA_METH_FREE
+
+/* Define to 1 if you have the `RSA_meth_get0_app_data' function. */
+#undef HAVE_RSA_METH_GET0_APP_DATA
+
+/* Define to 1 if you have the `RSA_meth_new' function. */
+#undef HAVE_RSA_METH_NEW
+
+/* Define to 1 if you have the `RSA_meth_set0_app_data' function. */
+#undef HAVE_RSA_METH_SET0_APP_DATA
+
+/* Define to 1 if you have the `RSA_meth_set_finish' function. */
+#undef HAVE_RSA_METH_SET_FINISH
+
+/* Define to 1 if you have the `RSA_meth_set_init' function. */
+#undef HAVE_RSA_METH_SET_INIT
+
+/* Define to 1 if you have the `RSA_meth_set_priv_dec' function. */
+#undef HAVE_RSA_METH_SET_PRIV_DEC
+
+/* Define to 1 if you have the `RSA_meth_set_priv_enc' function. */
+#undef HAVE_RSA_METH_SET_PRIV_ENC
+
+/* Define to 1 if you have the `RSA_meth_set_pub_dec' function. */
+#undef HAVE_RSA_METH_SET_PUB_DEC
+
+/* Define to 1 if you have the `RSA_meth_set_pub_enc' function. */
+#undef HAVE_RSA_METH_SET_PUB_ENC
+
+/* Define to 1 if you have the `RSA_meth_set_sign' function. */
+#undef HAVE_RSA_METH_SET_SIGN
+
+/* Define to 1 if you have the `RSA_set0_key' function. */
+#undef HAVE_RSA_SET0_KEY
+
+/* Define to 1 if you have the `RSA_set_flags' function. */
+#undef HAVE_RSA_SET_FLAGS
+
+/* sa_family_t, needed to hold AF_* info */
+#undef HAVE_SA_FAMILY_T
+
+/* Define to 1 if you have the `sd_booted' function. */
+#undef HAVE_SD_BOOTED
+
+/* Define to 1 if you have the `select' function. */
+#undef HAVE_SELECT
+
+/* Define to 1 if you have the `send' function. */
+#undef HAVE_SEND
+
+/* Define to 1 if you have the `sendmsg' function. */
+#undef HAVE_SENDMSG
+
+/* Define to 1 if you have the `sendto' function. */
+#undef HAVE_SENDTO
+
+/* Define to 1 if you have the `setgid' function. */
+#undef HAVE_SETGID
+
+/* Define to 1 if you have the `setgroups' function. */
+#undef HAVE_SETGROUPS
+
+/* Define to 1 if you have the `setsid' function. */
+#undef HAVE_SETSID
+
+/* Define to 1 if you have the `setsockopt' function. */
+#undef HAVE_SETSOCKOPT
+
+/* Define to 1 if you have the `setuid' function. */
+#undef HAVE_SETUID
+
+/* Define to 1 if you have the <signal.h> header file. */
+#undef HAVE_SIGNAL_H
+
+/* Define to 1 if you have the `socket' function. */
+#undef HAVE_SOCKET
+
+/* struct sock_extended_err needed for extended socket error support */
+#undef HAVE_SOCK_EXTENDED_ERR
+
+/* Define to 1 if you have the `SSL_CTX_get_default_passwd_cb' function. */
+#undef HAVE_SSL_CTX_GET_DEFAULT_PASSWD_CB
+
+/* Define to 1 if you have the `SSL_CTX_get_default_passwd_cb_userdata'
+   function. */
+#undef HAVE_SSL_CTX_GET_DEFAULT_PASSWD_CB_USERDATA
+
+/* Define to 1 if you have the `SSL_CTX_new' function. */
+#undef HAVE_SSL_CTX_NEW
+
+/* Define to 1 if you have the `SSL_CTX_set1_groups' function. */
+#undef HAVE_SSL_CTX_SET1_GROUPS
+
+/* Define to 1 if you have the `SSL_CTX_set_security_level' function. */
+#undef HAVE_SSL_CTX_SET_SECURITY_LEVEL
+
+/* Define to 1 if you have the `stat' function. */
+#undef HAVE_STAT
+
+/* Define to 1 if you have the <stdarg.h> header file. */
+#undef HAVE_STDARG_H
+
+/* Define to 1 if you have the <stdint.h> header file. */
+#undef HAVE_STDINT_H
+
+/* Define to 1 if you have the <stdio.h> header file. */
+#undef HAVE_STDIO_H
+
+/* Define to 1 if you have the <stdlib.h> header file. */
+#undef HAVE_STDLIB_H
+
+/* Define to 1 if you have the `strdup' function. */
+#undef HAVE_STRDUP
+
+/* Define to 1 if you have the <strings.h> header file. */
+#undef HAVE_STRINGS_H
+
+/* Define to 1 if you have the <string.h> header file. */
+#undef HAVE_STRING_H
+
+/* Define to 1 if you have the <stropts.h> header file. */
+#undef HAVE_STROPTS_H
+
+/* Define to 1 if you have the `strsep' function. */
+#undef HAVE_STRSEP
+
+/* Define to 1 if you have the `syslog' function. */
+#undef HAVE_SYSLOG
+
+/* Define to 1 if you have the <syslog.h> header file. */
+#undef HAVE_SYSLOG_H
+
+/* Define to 1 if you have the `system' function. */
+#undef HAVE_SYSTEM
+
+/* Define to 1 if you have the <systemd/sd-daemon.h> header file. */
+#undef HAVE_SYSTEMD_SD_DAEMON_H
+
+/* Define to 1 if you have the <sys/epoll.h> header file. */
+#undef HAVE_SYS_EPOLL_H
+
+/* Define to 1 if you have the <sys/file.h> header file. */
+#undef HAVE_SYS_FILE_H
+
+/* Define to 1 if you have the <sys/inotify.h> header file. */
+#undef HAVE_SYS_INOTIFY_H
+
+/* Define to 1 if you have the <sys/ioctl.h> header file. */
+#undef HAVE_SYS_IOCTL_H
+
+/* Define to 1 if you have the <sys/kern_control.h> header file. */
+#undef HAVE_SYS_KERN_CONTROL_H
+
+/* Define to 1 if you have the <sys/mman.h> header file. */
+#undef HAVE_SYS_MMAN_H
+
+/* Define to 1 if you have the <sys/socket.h> header file. */
+#undef HAVE_SYS_SOCKET_H
+
+/* Define to 1 if you have the <sys/sockio.h> header file. */
+#undef HAVE_SYS_SOCKIO_H
+
+/* Define to 1 if you have the <sys/stat.h> header file. */
+#undef HAVE_SYS_STAT_H
+
+/* Define to 1 if you have the <sys/time.h> header file. */
+#undef HAVE_SYS_TIME_H
+
+/* Define to 1 if you have the <sys/types.h> header file. */
+#undef HAVE_SYS_TYPES_H
+
+/* Define to 1 if you have the <sys/uio.h> header file. */
+#undef HAVE_SYS_UIO_H
+
+/* Define to 1 if you have the <sys/un.h> header file. */
+#undef HAVE_SYS_UN_H
+
+/* Define to 1 if you have the <sys/wait.h> header file. */
+#undef HAVE_SYS_WAIT_H
+
+/* Define to 1 if you have the <tap-windows.h> header file. */
+#undef HAVE_TAP_WINDOWS_H
+
+/* Define to 1 if you have the `time' function. */
+#undef HAVE_TIME
+
+/* Define to 1 if you have the <time.h> header file. */
+#undef HAVE_TIME_H
+
+/* Define to 1 if you have the `umask' function. */
+#undef HAVE_UMASK
+
+/* Define to 1 if you have the <unistd.h> header file. */
+#undef HAVE_UNISTD_H
+
+/* Define to 1 if you have the `unlink' function. */
+#undef HAVE_UNLINK
+
+/* Define to 1 if you have the <valgrind/memcheck.h> header file. */
+#undef HAVE_VALGRIND_MEMCHECK_H
+
+/* Define to 1 if you have the <versionhelpers.h> header file. */
+#undef HAVE_VERSIONHELPERS_H
+
+/* Define to 1 if you have the `vfork' function. */
+#undef HAVE_VFORK
+
+/* Define to 1 if you have the <vfork.h> header file. */
+#undef HAVE_VFORK_H
+
+/* Define to 1 if you have the `vsnprintf' function. */
+#undef HAVE_VSNPRINTF
+
+/* Define to 1 if you have the <windows.h> header file. */
+#undef HAVE_WINDOWS_H
+
+/* Define to 1 if you have the <winsock2.h> header file. */
+#undef HAVE_WINSOCK2_H
+
+/* Define to 1 if `fork' works. */
+#undef HAVE_WORKING_FORK
+
+/* Define to 1 if `vfork' works. */
+#undef HAVE_WORKING_VFORK
+
+/* Define to 1 if you have the `writev' function. */
+#undef HAVE_WRITEV
+
+/* Define to 1 if you have the <ws2tcpip.h> header file. */
+#undef HAVE_WS2TCPIP_H
+
+/* Define to 1 if you have the `X509_get0_notAfter' function. */
+#undef HAVE_X509_GET0_NOTAFTER
+
+/* Define to 1 if you have the `X509_get0_notBefore' function. */
+#undef HAVE_X509_GET0_NOTBEFORE
+
+/* Define to 1 if you have the `X509_get0_pubkey' function. */
+#undef HAVE_X509_GET0_PUBKEY
+
+/* Define to 1 if you have the `X509_OBJECT_free' function. */
+#undef HAVE_X509_OBJECT_FREE
+
+/* Define to 1 if you have the `X509_OBJECT_get_type' function. */
+#undef HAVE_X509_OBJECT_GET_TYPE
+
+/* Define to 1 if you have the `X509_STORE_get0_objects' function. */
+#undef HAVE_X509_STORE_GET0_OBJECTS
+
+/* Path to ifconfig tool */
+#undef IFCONFIG_PATH
+
+/* Path to iproute tool */
+#undef IPROUTE_PATH
+
+/* Define to the sub-directory where libtool stores uninstalled libraries. */
+#undef LT_OBJDIR
+
+/* use copy of LZ4 source in compat/ */
+#undef NEED_COMPAT_LZ4
+
+/* OpenVPN major version - integer */
+#undef OPENVPN_VERSION_MAJOR
+
+/* OpenVPN minor version - integer */
+#undef OPENVPN_VERSION_MINOR
+
+/* OpenVPN patch level - may be a string or integer */
+#undef OPENVPN_VERSION_PATCH
+
+/* Version in windows resource format */
+#undef OPENVPN_VERSION_RESOURCE
+
+/* Name of package */
+#undef PACKAGE
+
+/* Define to the address where bug reports for this package should be sent. */
+#undef PACKAGE_BUGREPORT
+
+/* Define to the full name of this package. */
+#undef PACKAGE_NAME
+
+/* Define to the full name and version of this package. */
+#undef PACKAGE_STRING
+
+/* Define to the one symbol short name of this package. */
+#undef PACKAGE_TARNAME
+
+/* Define to the home page for this package. */
+#undef PACKAGE_URL
+
+/* Define to the version of this package. */
+#undef PACKAGE_VERSION
+
+/* Path separator */
+#undef PATH_SEPARATOR
+
+/* Path separator */
+#undef PATH_SEPARATOR_STR
+
+/* Enable pedantic mode */
+#undef PEDANTIC
+
+/* Define as the return type of signal handlers (`int' or `void'). */
+#undef RETSIGTYPE
+
+/* Path to route tool */
+#undef ROUTE_PATH
+
+/* SIGHUP replacement */
+#undef SIGHUP
+
+/* SIGINT replacement */
+#undef SIGINT
+
+/* SIGTERM replacement */
+#undef SIGTERM
+
+/* SIGUSR1 replacement */
+#undef SIGUSR1
+
+/* SIGUSR2 replacement */
+#undef SIGUSR2
+
+/* The size of `unsigned int', as computed by sizeof. */
+#undef SIZEOF_UNSIGNED_INT
+
+/* The size of `unsigned long', as computed by sizeof. */
+#undef SIZEOF_UNSIGNED_LONG
+
+/* Define to 1 if you have the ANSI C header files. */
+#undef STDC_HEADERS
+
+/* Path to systemd-ask-password tool */
+#undef SYSTEMD_ASK_PASSWORD_PATH
+
+/* systemd is newer than v216 */
+#undef SYSTEMD_NEWER_THAN_216
+
+/* The tap-windows id */
+#undef TAP_WIN_COMPONENT_ID
+
+/* The tap-windows version number is required for OpenVPN */
+#undef TAP_WIN_MIN_MAJOR
+
+/* The tap-windows version number is required for OpenVPN */
+#undef TAP_WIN_MIN_MINOR
+
+/* Are we running AIX? */
+#undef TARGET_AIX
+
+/* A string representing our host */
+#undef TARGET_ALIAS
+
+/* Are we running on Mac OS X? */
+#undef TARGET_DARWIN
+
+/* Are we running on DragonFlyBSD? */
+#undef TARGET_DRAGONFLY
+
+/* Are we running on FreeBSD? */
+#undef TARGET_FREEBSD
+
+/* Are we running on Linux? */
+#undef TARGET_LINUX
+
+/* Are we running NetBSD? */
+#undef TARGET_NETBSD
+
+/* Are we running on OpenBSD? */
+#undef TARGET_OPENBSD
+
+/* Target prefix */
+#undef TARGET_PREFIX
+
+/* Are we running on Solaris? */
+#undef TARGET_SOLARIS
+
+/* Are we running WIN32? */
+#undef TARGET_WIN32
+
+/* dlopen libpam */
+#undef USE_PAM_DLOPEN
+
+/* Enable extensions on AIX 3, Interix.  */
+#ifndef _ALL_SOURCE
+# undef _ALL_SOURCE
+#endif
+/* Enable GNU extensions on systems that have them.  */
+#ifndef _GNU_SOURCE
+# undef _GNU_SOURCE
+#endif
+/* Enable threading extensions on Solaris.  */
+#ifndef _POSIX_PTHREAD_SEMANTICS
+# undef _POSIX_PTHREAD_SEMANTICS
+#endif
+/* Enable extensions on HP NonStop.  */
+#ifndef _TANDEM_SOURCE
+# undef _TANDEM_SOURCE
+#endif
+/* Enable general extensions on Solaris.  */
+#ifndef __EXTENSIONS__
+# undef __EXTENSIONS__
+#endif
+
+
+/* Use valgrind memory debugging library */
+#undef USE_VALGRIND
+
+/* Version number of package */
+#undef VERSION
+
+/* Define to 1 if on MINIX. */
+#undef _MINIX
+
+/* Define to 2 if the system does not provide POSIX.1 features except with
+   this defined. */
+#undef _POSIX_1_SOURCE
+
+/* Define to 1 if you need to in order for `stat' and other things to work. */
+#undef _POSIX_SOURCE
+
+/* Define for Solaris 2.5.1 so the uint32_t typedef from <sys/synch.h>,
+   <pthread.h>, or <semaphore.h> is not used. If the typedef were allowed, the
+   #define below would cause a syntax error. */
+#undef _UINT32_T
+
+/* Define for Solaris 2.5.1 so the uint64_t typedef from <sys/synch.h>,
+   <pthread.h>, or <semaphore.h> is not used. If the typedef were allowed, the
+   #define below would cause a syntax error. */
+#undef _UINT64_T
+
+/* Define for Solaris 2.5.1 so the uint8_t typedef from <sys/synch.h>,
+   <pthread.h>, or <semaphore.h> is not used. If the typedef were allowed, the
+   #define below would cause a syntax error. */
+#undef _UINT8_T
+
+/* Define to empty if `const' does not conform to ANSI C. */
+#undef const
+
+/* Define to `int' if <sys/types.h> doesn't define. */
+#undef gid_t
+
+/* Workaround missing in_addr_t */
+#undef in_addr_t
+
+/* Workaround missing in_port_t */
+#undef in_port_t
+
+/* Define to `__inline__' or `__inline' if that's what the C compiler
+   calls it, or to nothing if 'inline' is not supported under any name.  */
+#ifndef __cplusplus
+#undef inline
+#endif
+
+/* Define to the type of a signed integer type of width exactly 16 bits if
+   such a type exists and the standard includes do not define it. */
+#undef int16_t
+
+/* Define to the type of a signed integer type of width exactly 32 bits if
+   such a type exists and the standard includes do not define it. */
+#undef int32_t
+
+/* Define to the type of a signed integer type of width exactly 64 bits if
+   such a type exists and the standard includes do not define it. */
+#undef int64_t
+
+/* Define to the type of a signed integer type of width exactly 8 bits if such
+   a type exists and the standard includes do not define it. */
+#undef int8_t
+
+/* Define to `long int' if <sys/types.h> does not define. */
+#undef off_t
+
+/* Define to `int' if <sys/types.h> does not define. */
+#undef pid_t
+
+/* Define to `unsigned int' if <sys/types.h> does not define. */
+#undef size_t
+
+/* type to use in place of socklen_t if not defined */
+#undef socklen_t
+
+/* Define to `int' if <sys/types.h> doesn't define. */
+#undef uid_t
+
+/* Define to the type of an unsigned integer type of width exactly 16 bits if
+   such a type exists and the standard includes do not define it. */
+#undef uint16_t
+
+/* Define to the type of an unsigned integer type of width exactly 32 bits if
+   such a type exists and the standard includes do not define it. */
+#undef uint32_t
+
+/* Define to the type of an unsigned integer type of width exactly 64 bits if
+   such a type exists and the standard includes do not define it. */
+#undef uint64_t
+
+/* Define to the type of an unsigned integer type of width exactly 8 bits if
+   such a type exists and the standard includes do not define it. */
+#undef uint8_t
+
+/* Define as `fork' if `vfork' does not work. */
+#undef vfork
+
+/* Define to empty if the keyword `volatile' does not work. Warning: valid
+   code using `volatile' can become incorrect without. Disable with care. */
+#undef volatile
diff --git a/config.sub b/config.sub
new file mode 100755
index 0000000..b51fb8c
--- /dev/null
+++ b/config.sub
@@ -0,0 +1,1790 @@
+#! /bin/sh
+# Configuration validation subroutine script.
+#   Copyright 1992-2018 Free Software Foundation, Inc.
+
+timestamp='2018-08-29'
+
+# This file is free software; you can redistribute it and/or modify it
+# under the terms of the GNU General Public License as published by
+# the Free Software Foundation; either version 3 of the License, or
+# (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful, but
+# WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+# General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program; if not, see <https://www.gnu.org/licenses/>.
+#
+# As a special exception to the GNU General Public License, if you
+# distribute this file as part of a program that contains a
+# configuration script generated by Autoconf, you may include it under
+# the same distribution terms that you use for the rest of that
+# program.  This Exception is an additional permission under section 7
+# of the GNU General Public License, version 3 ("GPLv3").
+
+
+# Please send patches to <config-patches@gnu.org>.
+#
+# Configuration subroutine to validate and canonicalize a configuration type.
+# Supply the specified configuration type as an argument.
+# If it is invalid, we print an error message on stderr and exit with code 1.
+# Otherwise, we print the canonical config type on stdout and succeed.
+
+# You can get the latest version of this script from:
+# https://git.savannah.gnu.org/gitweb/?p=config.git;a=blob_plain;f=config.sub
+
+# This file is supposed to be the same for all GNU packages
+# and recognize all the CPU types, system types and aliases
+# that are meaningful with *any* GNU software.
+# Each package is responsible for reporting which valid configurations
+# it does not support.  The user should be able to distinguish
+# a failure to support a valid configuration from a meaningless
+# configuration.
+
+# The goal of this file is to map all the various variations of a given
+# machine specification into a single specification in the form:
+#	CPU_TYPE-MANUFACTURER-OPERATING_SYSTEM
+# or in some cases, the newer four-part form:
+#	CPU_TYPE-MANUFACTURER-KERNEL-OPERATING_SYSTEM
+# It is wrong to echo any other type of specification.
+
+me=`echo "$0" | sed -e 's,.*/,,'`
+
+usage="\
+Usage: $0 [OPTION] CPU-MFR-OPSYS or ALIAS
+
+Canonicalize a configuration name.
+
+Options:
+  -h, --help         print this help, then exit
+  -t, --time-stamp   print date of last modification, then exit
+  -v, --version      print version number, then exit
+
+Report bugs and patches to <config-patches@gnu.org>."
+
+version="\
+GNU config.sub ($timestamp)
+
+Copyright 1992-2018 Free Software Foundation, Inc.
+
+This is free software; see the source for copying conditions.  There is NO
+warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE."
+
+help="
+Try \`$me --help' for more information."
+
+# Parse command line
+while test $# -gt 0 ; do
+  case $1 in
+    --time-stamp | --time* | -t )
+       echo "$timestamp" ; exit ;;
+    --version | -v )
+       echo "$version" ; exit ;;
+    --help | --h* | -h )
+       echo "$usage"; exit ;;
+    -- )     # Stop option processing
+       shift; break ;;
+    - )	# Use stdin as input.
+       break ;;
+    -* )
+       echo "$me: invalid option $1$help"
+       exit 1 ;;
+
+    *local*)
+       # First pass through any local machine types.
+       echo "$1"
+       exit ;;
+
+    * )
+       break ;;
+  esac
+done
+
+case $# in
+ 0) echo "$me: missing argument$help" >&2
+    exit 1;;
+ 1) ;;
+ *) echo "$me: too many arguments$help" >&2
+    exit 1;;
+esac
+
+# Split fields of configuration type
+IFS="-" read -r field1 field2 field3 field4 <<EOF
+$1
+EOF
+
+# Separate into logical components for further validation
+case $1 in
+	*-*-*-*-*)
+		echo Invalid configuration \`"$1"\': more than four components >&2
+		exit 1
+		;;
+	*-*-*-*)
+		basic_machine=$field1-$field2
+		os=$field3-$field4
+		;;
+	*-*-*)
+		# Ambiguous whether COMPANY is present, or skipped and KERNEL-OS is two
+		# parts
+		maybe_os=$field2-$field3
+		case $maybe_os in
+			nto-qnx* | linux-gnu* | linux-android* | linux-dietlibc \
+			| linux-newlib* | linux-musl* | linux-uclibc* | uclinux-uclibc* \
+			| uclinux-gnu* | kfreebsd*-gnu* | knetbsd*-gnu* | netbsd*-gnu* \
+			| netbsd*-eabi* | kopensolaris*-gnu* | cloudabi*-eabi* \
+			| storm-chaos* | os2-emx* | rtmk-nova*)
+				basic_machine=$field1
+				os=$maybe_os
+				;;
+			android-linux)
+				basic_machine=$field1-unknown
+				os=linux-android
+				;;
+			*)
+				basic_machine=$field1-$field2
+				os=$field3
+				;;
+		esac
+		;;
+	*-*)
+		# A lone config we happen to match not fitting any patern
+		case $field1-$field2 in
+			decstation-3100)
+				basic_machine=mips-dec
+				os=
+				;;
+			*-*)
+				# Second component is usually, but not always the OS
+				case $field2 in
+					# Prevent following clause from handling this valid os
+					sun*os*)
+						basic_machine=$field1
+						os=$field2
+						;;
+					# Manufacturers
+					dec* | mips* | sequent* | encore* | pc533* | sgi* | sony* \
+					| att* | 7300* | 3300* | delta* | motorola* | sun[234]* \
+					| unicom* | ibm* | next | hp | isi* | apollo | altos* \
+					| convergent* | ncr* | news | 32* | 3600* | 3100* \
+					| hitachi* | c[123]* | convex* | sun | crds | omron* | dg \
+					| ultra | tti* | harris | dolphin | highlevel | gould \
+					| cbm | ns | masscomp | apple | axis | knuth | cray \
+					| microblaze* | sim | cisco \
+					| oki | wec | wrs | winbond)
+						basic_machine=$field1-$field2
+						os=
+						;;
+					*)
+						basic_machine=$field1
+						os=$field2
+						;;
+				esac
+			;;
+		esac
+		;;
+	*)
+		# Convert single-component short-hands not valid as part of
+		# multi-component configurations.
+		case $field1 in
+			386bsd)
+				basic_machine=i386-pc
+				os=bsd
+				;;
+			a29khif)
+				basic_machine=a29k-amd
+				os=udi
+				;;
+			adobe68k)
+				basic_machine=m68010-adobe
+				os=scout
+				;;
+			alliant)
+				basic_machine=fx80-alliant
+				os=
+				;;
+			altos | altos3068)
+				basic_machine=m68k-altos
+				os=
+				;;
+			am29k)
+				basic_machine=a29k-none
+				os=bsd
+				;;
+			amdahl)
+				basic_machine=580-amdahl
+				os=sysv
+				;;
+			amiga)
+				basic_machine=m68k-unknown
+				os=
+				;;
+			amigaos | amigados)
+				basic_machine=m68k-unknown
+				os=amigaos
+				;;
+			amigaunix | amix)
+				basic_machine=m68k-unknown
+				os=sysv4
+				;;
+			apollo68)
+				basic_machine=m68k-apollo
+				os=sysv
+				;;
+			apollo68bsd)
+				basic_machine=m68k-apollo
+				os=bsd
+				;;
+			aros)
+				basic_machine=i386-pc
+				os=aros
+				;;
+			aux)
+				basic_machine=m68k-apple
+				os=aux
+				;;
+			balance)
+				basic_machine=ns32k-sequent
+				os=dynix
+				;;
+			blackfin)
+				basic_machine=bfin-unknown
+				os=linux
+				;;
+			cegcc)
+				basic_machine=arm-unknown
+				os=cegcc
+				;;
+			convex-c1)
+				basic_machine=c1-convex
+				os=bsd
+				;;
+			convex-c2)
+				basic_machine=c2-convex
+				os=bsd
+				;;
+			convex-c32)
+				basic_machine=c32-convex
+				os=bsd
+				;;
+			convex-c34)
+				basic_machine=c34-convex
+				os=bsd
+				;;
+			convex-c38)
+				basic_machine=c38-convex
+				os=bsd
+				;;
+			cray)
+				basic_machine=j90-cray
+				os=unicos
+				;;
+			crds | unos)
+				basic_machine=m68k-crds
+				os=
+				;;
+			da30)
+				basic_machine=m68k-da30
+				os=
+				;;
+			decstation | pmax | pmin | dec3100 | decstatn)
+				basic_machine=mips-dec
+				os=
+				;;
+			delta88)
+				basic_machine=m88k-motorola
+				os=sysv3
+				;;
+			dicos)
+				basic_machine=i686-pc
+				os=dicos
+				;;
+			djgpp)
+				basic_machine=i586-pc
+				os=msdosdjgpp
+				;;
+			ebmon29k)
+				basic_machine=a29k-amd
+				os=ebmon
+				;;
+			es1800 | OSE68k | ose68k | ose | OSE)
+				basic_machine=m68k-ericsson
+				os=ose
+				;;
+			gmicro)
+				basic_machine=tron-gmicro
+				os=sysv
+				;;
+			go32)
+				basic_machine=i386-pc
+				os=go32
+				;;
+			h8300hms)
+				basic_machine=h8300-hitachi
+				os=hms
+				;;
+			h8300xray)
+				basic_machine=h8300-hitachi
+				os=xray
+				;;
+			h8500hms)
+				basic_machine=h8500-hitachi
+				os=hms
+				;;
+			harris)
+				basic_machine=m88k-harris
+				os=sysv3
+				;;
+			hp300)
+				basic_machine=m68k-hp
+				;;
+			hp300bsd)
+				basic_machine=m68k-hp
+				os=bsd
+				;;
+			hp300hpux)
+				basic_machine=m68k-hp
+				os=hpux
+				;;
+			hppaosf)
+				basic_machine=hppa1.1-hp
+				os=osf
+				;;
+			hppro)
+				basic_machine=hppa1.1-hp
+				os=proelf
+				;;
+			i386mach)
+				basic_machine=i386-mach
+				os=mach
+				;;
+			vsta)
+				basic_machine=i386-pc
+				os=vsta
+				;;
+			isi68 | isi)
+				basic_machine=m68k-isi
+				os=sysv
+				;;
+			m68knommu)
+				basic_machine=m68k-unknown
+				os=linux
+				;;
+			magnum | m3230)
+				basic_machine=mips-mips
+				os=sysv
+				;;
+			merlin)
+				basic_machine=ns32k-utek
+				os=sysv
+				;;
+			mingw64)
+				basic_machine=x86_64-pc
+				os=mingw64
+				;;
+			mingw32)
+				basic_machine=i686-pc
+				os=mingw32
+				;;
+			mingw32ce)
+				basic_machine=arm-unknown
+				os=mingw32ce
+				;;
+			monitor)
+				basic_machine=m68k-rom68k
+				os=coff
+				;;
+			morphos)
+				basic_machine=powerpc-unknown
+				os=morphos
+				;;
+			moxiebox)
+				basic_machine=moxie-unknown
+				os=moxiebox
+				;;
+			msdos)
+				basic_machine=i386-pc
+				os=msdos
+				;;
+			msys)
+				basic_machine=i686-pc
+				os=msys
+				;;
+			mvs)
+				basic_machine=i370-ibm
+				os=mvs
+				;;
+			nacl)
+				basic_machine=le32-unknown
+				os=nacl
+				;;
+			ncr3000)
+				basic_machine=i486-ncr
+				os=sysv4
+				;;
+			netbsd386)
+				basic_machine=i386-pc
+				os=netbsd
+				;;
+			netwinder)
+				basic_machine=armv4l-rebel
+				os=linux
+				;;
+			news | news700 | news800 | news900)
+				basic_machine=m68k-sony
+				os=newsos
+				;;
+			news1000)
+				basic_machine=m68030-sony
+				os=newsos
+				;;
+			necv70)
+				basic_machine=v70-nec
+				os=sysv
+				;;
+			nh3000)
+				basic_machine=m68k-harris
+				os=cxux
+				;;
+			nh[45]000)
+				basic_machine=m88k-harris
+				os=cxux
+				;;
+			nindy960)
+				basic_machine=i960-intel
+				os=nindy
+				;;
+			mon960)
+				basic_machine=i960-intel
+				os=mon960
+				;;
+			nonstopux)
+				basic_machine=mips-compaq
+				os=nonstopux
+				;;
+			os400)
+				basic_machine=powerpc-ibm
+				os=os400
+				;;
+			OSE68000 | ose68000)
+				basic_machine=m68000-ericsson
+				os=ose
+				;;
+			os68k)
+				basic_machine=m68k-none
+				os=os68k
+				;;
+			paragon)
+				basic_machine=i860-intel
+				os=osf
+				;;
+			parisc)
+				basic_machine=hppa-unknown
+				os=linux
+				;;
+			pw32)
+				basic_machine=i586-unknown
+				os=pw32
+				;;
+			rdos | rdos64)
+				basic_machine=x86_64-pc
+				os=rdos
+				;;
+			rdos32)
+				basic_machine=i386-pc
+				os=rdos
+				;;
+			rom68k)
+				basic_machine=m68k-rom68k
+				os=coff
+				;;
+			sa29200)
+				basic_machine=a29k-amd
+				os=udi
+				;;
+			sei)
+				basic_machine=mips-sei
+				os=seiux
+				;;
+			sequent)
+				basic_machine=i386-sequent
+				os=
+				;;
+			sps7)
+				basic_machine=m68k-bull
+				os=sysv2
+				;;
+			st2000)
+				basic_machine=m68k-tandem
+				os=
+				;;
+			stratus)
+				basic_machine=i860-stratus
+				os=sysv4
+				;;
+			sun2)
+				basic_machine=m68000-sun
+				os=
+				;;
+			sun2os3)
+				basic_machine=m68000-sun
+				os=sunos3
+				;;
+			sun2os4)
+				basic_machine=m68000-sun
+				os=sunos4
+				;;
+			sun3)
+				basic_machine=m68k-sun
+				os=
+				;;
+			sun3os3)
+				basic_machine=m68k-sun
+				os=sunos3
+				;;
+			sun3os4)
+				basic_machine=m68k-sun
+				os=sunos4
+				;;
+			sun4)
+				basic_machine=sparc-sun
+				os=
+				;;
+			sun4os3)
+				basic_machine=sparc-sun
+				os=sunos3
+				;;
+			sun4os4)
+				basic_machine=sparc-sun
+				os=sunos4
+				;;
+			sun4sol2)
+				basic_machine=sparc-sun
+				os=solaris2
+				;;
+			sun386 | sun386i | roadrunner)
+				basic_machine=i386-sun
+				os=
+				;;
+			sv1)
+				basic_machine=sv1-cray
+				os=unicos
+				;;
+			symmetry)
+				basic_machine=i386-sequent
+				os=dynix
+				;;
+			t3e)
+				basic_machine=alphaev5-cray
+				os=unicos
+				;;
+			t90)
+				basic_machine=t90-cray
+				os=unicos
+				;;
+			toad1)
+				basic_machine=pdp10-xkl
+				os=tops20
+				;;
+			tpf)
+				basic_machine=s390x-ibm
+				os=tpf
+				;;
+			udi29k)
+				basic_machine=a29k-amd
+				os=udi
+				;;
+			ultra3)
+				basic_machine=a29k-nyu
+				os=sym1
+				;;
+			v810 | necv810)
+				basic_machine=v810-nec
+				os=none
+				;;
+			vaxv)
+				basic_machine=vax-dec
+				os=sysv
+				;;
+			vms)
+				basic_machine=vax-dec
+				os=vms
+				;;
+			vxworks960)
+				basic_machine=i960-wrs
+				os=vxworks
+				;;
+			vxworks68)
+				basic_machine=m68k-wrs
+				os=vxworks
+				;;
+			vxworks29k)
+				basic_machine=a29k-wrs
+				os=vxworks
+				;;
+			xbox)
+				basic_machine=i686-pc
+				os=mingw32
+				;;
+			ymp)
+				basic_machine=ymp-cray
+				os=unicos
+				;;
+			*)
+				basic_machine=$1
+				os=
+				;;
+		esac
+		;;
+esac
+
+# Decode 1-component or ad-hoc basic machines
+case $basic_machine in
+	# Here we handle the default manufacturer of certain CPU types.  It is in
+	# some cases the only manufacturer, in others, it is the most popular.
+	w89k)
+		cpu=hppa1.1
+		vendor=winbond
+		;;
+	op50n)
+		cpu=hppa1.1
+		vendor=oki
+		;;
+	op60c)
+		cpu=hppa1.1
+		vendor=oki
+		;;
+	ibm*)
+		cpu=i370
+		vendor=ibm
+		;;
+	orion105)
+		cpu=clipper
+		vendor=highlevel
+		;;
+	mac | mpw | mac-mpw)
+		cpu=m68k
+		vendor=apple
+		;;
+	pmac | pmac-mpw)
+		cpu=powerpc
+		vendor=apple
+		;;
+
+	# Recognize the various machine names and aliases which stand
+	# for a CPU type and a company and sometimes even an OS.
+	3b1 | 7300 | 7300-att | att-7300 | pc7300 | safari | unixpc)
+		cpu=m68000
+		vendor=att
+		;;
+	3b*)
+		cpu=we32k
+		vendor=att
+		;;
+	bluegene*)
+		cpu=powerpc
+		vendor=ibm
+		os=cnk
+		;;
+	decsystem10* | dec10*)
+		cpu=pdp10
+		vendor=dec
+		os=tops10
+		;;
+	decsystem20* | dec20*)
+		cpu=pdp10
+		vendor=dec
+		os=tops20
+		;;
+	delta | 3300 | motorola-3300 | motorola-delta \
+	      | 3300-motorola | delta-motorola)
+		cpu=m68k
+		vendor=motorola
+		;;
+	dpx2*)
+		cpu=m68k
+		vendor=bull
+		os=sysv3
+		;;
+	encore | umax | mmax)
+		cpu=ns32k
+		vendor=encore
+		;;
+	elxsi)
+		cpu=elxsi
+		vendor=elxsi
+		os=${os:-bsd}
+		;;
+	fx2800)
+		cpu=i860
+		vendor=alliant
+		;;
+	genix)
+		cpu=ns32k
+		vendor=ns
+		;;
+	h3050r* | hiux*)
+		cpu=hppa1.1
+		vendor=hitachi
+		os=hiuxwe2
+		;;
+	hp3k9[0-9][0-9] | hp9[0-9][0-9])
+		cpu=hppa1.0
+		vendor=hp
+		;;
+	hp9k2[0-9][0-9] | hp9k31[0-9])
+		cpu=m68000
+		vendor=hp
+		;;
+	hp9k3[2-9][0-9])
+		cpu=m68k
+		vendor=hp
+		;;
+	hp9k6[0-9][0-9] | hp6[0-9][0-9])
+		cpu=hppa1.0
+		vendor=hp
+		;;
+	hp9k7[0-79][0-9] | hp7[0-79][0-9])
+		cpu=hppa1.1
+		vendor=hp
+		;;
+	hp9k78[0-9] | hp78[0-9])
+		# FIXME: really hppa2.0-hp
+		cpu=hppa1.1
+		vendor=hp
+		;;
+	hp9k8[67]1 | hp8[67]1 | hp9k80[24] | hp80[24] | hp9k8[78]9 | hp8[78]9 | hp9k893 | hp893)
+		# FIXME: really hppa2.0-hp
+		cpu=hppa1.1
+		vendor=hp
+		;;
+	hp9k8[0-9][13679] | hp8[0-9][13679])
+		cpu=hppa1.1
+		vendor=hp
+		;;
+	hp9k8[0-9][0-9] | hp8[0-9][0-9])
+		cpu=hppa1.0
+		vendor=hp
+		;;
+	i*86v32)
+		cpu=`echo "$1" | sed -e 's/86.*/86/'`
+		vendor=pc
+		os=sysv32
+		;;
+	i*86v4*)
+		cpu=`echo "$1" | sed -e 's/86.*/86/'`
+		vendor=pc
+		os=sysv4
+		;;
+	i*86v)
+		cpu=`echo "$1" | sed -e 's/86.*/86/'`
+		vendor=pc
+		os=sysv
+		;;
+	i*86sol2)
+		cpu=`echo "$1" | sed -e 's/86.*/86/'`
+		vendor=pc
+		os=solaris2
+		;;
+	j90 | j90-cray)
+		cpu=j90
+		vendor=cray
+		os=${os:-unicos}
+		;;
+	iris | iris4d)
+		cpu=mips
+		vendor=sgi
+		case $os in
+		    irix*)
+			;;
+		    *)
+			os=irix4
+			;;
+		esac
+		;;
+	miniframe)
+		cpu=m68000
+		vendor=convergent
+		;;
+	*mint | mint[0-9]* | *MiNT | *MiNT[0-9]*)
+		cpu=m68k
+		vendor=atari
+		os=mint
+		;;
+	news-3600 | risc-news)
+		cpu=mips
+		vendor=sony
+		os=newsos
+		;;
+	next | m*-next)
+		cpu=m68k
+		vendor=next
+		case $os in
+		    nextstep* )
+			;;
+		    ns2*)
+		      os=nextstep2
+			;;
+		    *)
+		      os=nextstep3
+			;;
+		esac
+		;;
+	np1)
+		cpu=np1
+		vendor=gould
+		;;
+	op50n-* | op60c-*)
+		cpu=hppa1.1
+		vendor=oki
+		os=proelf
+		;;
+	pa-hitachi)
+		cpu=hppa1.1
+		vendor=hitachi
+		os=hiuxwe2
+		;;
+	pbd)
+		cpu=sparc
+		vendor=tti
+		;;
+	pbb)
+		cpu=m68k
+		vendor=tti
+		;;
+	pc532)
+		cpu=ns32k
+		vendor=pc532
+		;;
+	pn)
+		cpu=pn
+		vendor=gould
+		;;
+	power)
+		cpu=power
+		vendor=ibm
+		;;
+	ps2)
+		cpu=i386
+		vendor=ibm
+		;;
+	rm[46]00)
+		cpu=mips
+		vendor=siemens
+		;;
+	rtpc | rtpc-*)
+		cpu=romp
+		vendor=ibm
+		;;
+	sde)
+		cpu=mipsisa32
+		vendor=sde
+		os=${os:-elf}
+		;;
+	simso-wrs)
+		cpu=sparclite
+		vendor=wrs
+		os=vxworks
+		;;
+	tower | tower-32)
+		cpu=m68k
+		vendor=ncr
+		;;
+	vpp*|vx|vx-*)
+		cpu=f301
+		vendor=fujitsu
+		;;
+	w65)
+		cpu=w65
+		vendor=wdc
+		;;
+	w89k-*)
+		cpu=hppa1.1
+		vendor=winbond
+		os=proelf
+		;;
+	none)
+		cpu=none
+		vendor=none
+		;;
+	leon|leon[3-9])
+		cpu=sparc
+		vendor=$basic_machine
+		;;
+	leon-*|leon[3-9]-*)
+		cpu=sparc
+		vendor=`echo "$basic_machine" | sed 's/-.*//'`
+		;;
+
+	*-*)
+		IFS="-" read -r cpu vendor <<EOF
+$basic_machine
+EOF
+		;;
+	# We use `pc' rather than `unknown'
+	# because (1) that's what they normally are, and
+	# (2) the word "unknown" tends to confuse beginning users.
+	i*86 | x86_64)
+		cpu=$basic_machine
+		vendor=pc
+		;;
+	# These rules are duplicated from below for sake of the special case above;
+	# i.e. things that normalized to x86 arches should also default to "pc"
+	pc98)
+		cpu=i386
+		vendor=pc
+		;;
+	x64 | amd64)
+		cpu=x86_64
+		vendor=pc
+		;;
+	# Recognize the basic CPU types without company name.
+	*)
+		cpu=$basic_machine
+		vendor=unknown
+		;;
+esac
+
+unset -v basic_machine
+
+# Decode basic machines in the full and proper CPU-Company form.
+case $cpu-$vendor in
+	# Here we handle the default manufacturer of certain CPU types in cannonical form. It is in
+	# some cases the only manufacturer, in others, it is the most popular.
+	craynv-unknown)
+		vendor=cray
+		os=${os:-unicosmp}
+		;;
+	c90-unknown | c90-cray)
+		vendor=cray
+		os=${os:-unicos}
+		;;
+	fx80-unknown)
+		vendor=alliant
+		;;
+	romp-unknown)
+		vendor=ibm
+		;;
+	mmix-unknown)
+		vendor=knuth
+		;;
+	microblaze-unknown | microblazeel-unknown)
+		vendor=xilinx
+		;;
+	rs6000-unknown)
+		vendor=ibm
+		;;
+	vax-unknown)
+		vendor=dec
+		;;
+	pdp11-unknown)
+		vendor=dec
+		;;
+	we32k-unknown)
+		vendor=att
+		;;
+	cydra-unknown)
+		vendor=cydrome
+		;;
+	i370-ibm*)
+		vendor=ibm
+		;;
+	orion-unknown)
+		vendor=highlevel
+		;;
+	xps-unknown | xps100-unknown)
+		cpu=xps100
+		vendor=honeywell
+		;;
+
+	# Here we normalize CPU types with a missing or matching vendor
+	dpx20-unknown | dpx20-bull)
+		cpu=rs6000
+		vendor=bull
+		os=${os:-bosx}
+		;;
+
+	# Here we normalize CPU types irrespective of the vendor
+	amd64-*)
+		cpu=x86_64
+		;;
+	blackfin-*)
+		cpu=bfin
+		os=linux
+		;;
+	c54x-*)
+		cpu=tic54x
+		;;
+	c55x-*)
+		cpu=tic55x
+		;;
+	c6x-*)
+		cpu=tic6x
+		;;
+	e500v[12]-*)
+		cpu=powerpc
+		os=$os"spe"
+		;;
+	mips3*-*)
+		cpu=mips64
+		;;
+	ms1-*)
+		cpu=mt
+		;;
+	m68knommu-*)
+		cpu=m68k
+		os=linux
+		;;
+	m9s12z-* | m68hcs12z-* | hcs12z-* | s12z-*)
+		cpu=s12z
+		;;
+	openrisc-*)
+		cpu=or32
+		;;
+	parisc-*)
+		cpu=hppa
+		os=linux
+		;;
+	pentium-* | p5-* | k5-* | k6-* | nexgen-* | viac3-*)
+		cpu=i586
+		;;
+	pentiumpro-* | p6-* | 6x86-* | athlon-* | athalon_*-*)
+		cpu=i686
+		;;
+	pentiumii-* | pentium2-* | pentiumiii-* | pentium3-*)
+		cpu=i686
+		;;
+	pentium4-*)
+		cpu=i786
+		;;
+	pc98-*)
+		cpu=i386
+		;;
+	ppc-* | ppcbe-*)
+		cpu=powerpc
+		;;
+	ppcle-* | powerpclittle-*)
+		cpu=powerpcle
+		;;
+	ppc64-*)
+		cpu=powerpc64
+		;;
+	ppc64le-* | powerpc64little-*)
+		cpu=powerpc64le
+		;;
+	sb1-*)
+		cpu=mipsisa64sb1
+		;;
+	sb1el-*)
+		cpu=mipsisa64sb1el
+		;;
+	sh5e[lb]-*)
+		cpu=`echo "$cpu" | sed 's/^\(sh.\)e\(.\)$/\1\2e/'`
+		;;
+	spur-*)
+		cpu=spur
+		;;
+	strongarm-* | thumb-*)
+		cpu=arm
+		;;
+	tx39-*)
+		cpu=mipstx39
+		;;
+	tx39el-*)
+		cpu=mipstx39el
+		;;
+	x64-*)
+		cpu=x86_64
+		;;
+	xscale-* | xscalee[bl]-*)
+		cpu=`echo "$cpu" | sed 's/^xscale/arm/'`
+		;;
+
+	# Recognize the cannonical CPU Types that limit and/or modify the
+	# company names they are paired with.
+	cr16-*)
+		os=${os:-elf}
+		;;
+	crisv32-* | etraxfs*-*)
+		cpu=crisv32
+		vendor=axis
+		;;
+	cris-* | etrax*-*)
+		cpu=cris
+		vendor=axis
+		;;
+	crx-*)
+		os=${os:-elf}
+		;;
+	neo-tandem)
+		cpu=neo
+		vendor=tandem
+		;;
+	nse-tandem)
+		cpu=nse
+		vendor=tandem
+		;;
+	nsr-tandem)
+		cpu=nsr
+		vendor=tandem
+		;;
+	nsv-tandem)
+		cpu=nsv
+		vendor=tandem
+		;;
+	nsx-tandem)
+		cpu=nsx
+		vendor=tandem
+		;;
+	s390-*)
+		cpu=s390
+		vendor=ibm
+		;;
+	s390x-*)
+		cpu=s390x
+		vendor=ibm
+		;;
+	tile*-*)
+		os=${os:-linux-gnu}
+		;;
+
+	*)
+		# Recognize the cannonical CPU types that are allowed with any
+		# company name.
+		case $cpu in
+			1750a | 580 \
+			| a29k \
+			| aarch64 | aarch64_be \
+			| abacus \
+			| alpha | alphaev[4-8] | alphaev56 | alphaev6[78] \
+			| alpha64 | alpha64ev[4-8] | alpha64ev56 | alpha64ev6[78] \
+			| alphapca5[67] | alpha64pca5[67] \
+			| am33_2.0 \
+			| arc | arceb \
+			| arm  | arm[lb]e | arme[lb] | armv* \
+			| avr | avr32 \
+			| asmjs \
+			| ba \
+			| be32 | be64 \
+			| bfin | bs2000 \
+			| c[123]* | c30 | [cjt]90 | c4x \
+			| c8051 | clipper | craynv | csky | cydra \
+			| d10v | d30v | dlx | dsp16xx \
+			| e2k | elxsi | epiphany \
+			| f30[01] | f700 | fido | fr30 | frv | ft32 | fx80 \
+			| h8300 | h8500 \
+			| hppa | hppa1.[01] | hppa2.0 | hppa2.0[nw] | hppa64 \
+			| hexagon \
+			| i370 | i*86 | i860 | i960 | ia16 | ia64 \
+			| ip2k | iq2000 \
+			| k1om \
+			| le32 | le64 \
+			| lm32 \
+			| m32c | m32r | m32rle \
+			| m5200 | m68000 | m680[012346]0 | m68360 | m683?2 | m68k | v70 | w65 \
+			| m6811 | m68hc11 | m6812 | m68hc12 | m68hcs12x | nvptx | picochip \
+			| m88110 | m88k | maxq | mb | mcore | mep | metag \
+			| microblaze | microblazeel \
+			| mips | mipsbe | mipseb | mipsel | mipsle \
+			| mips16 \
+			| mips64 | mips64el \
+			| mips64octeon | mips64octeonel \
+			| mips64orion | mips64orionel \
+			| mips64r5900 | mips64r5900el \
+			| mips64vr | mips64vrel \
+			| mips64vr4100 | mips64vr4100el \
+			| mips64vr4300 | mips64vr4300el \
+			| mips64vr5000 | mips64vr5000el \
+			| mips64vr5900 | mips64vr5900el \
+			| mipsisa32 | mipsisa32el \
+			| mipsisa32r2 | mipsisa32r2el \
+			| mipsisa32r6 | mipsisa32r6el \
+			| mipsisa64 | mipsisa64el \
+			| mipsisa64r2 | mipsisa64r2el \
+			| mipsisa64r6 | mipsisa64r6el \
+			| mipsisa64sb1 | mipsisa64sb1el \
+			| mipsisa64sr71k | mipsisa64sr71kel \
+			| mipsr5900 | mipsr5900el \
+			| mipstx39 | mipstx39el \
+			| mmix \
+			| mn10200 | mn10300 \
+			| moxie \
+			| mt \
+			| msp430 \
+			| nds32 | nds32le | nds32be \
+			| nfp \
+			| nios | nios2 | nios2eb | nios2el \
+			| none | np1 | ns16k | ns32k \
+			| open8 \
+			| or1k* \
+			| or32 \
+			| orion \
+			| pdp10 | pdp11 | pj | pjl | pn | power \
+			| powerpc | powerpc64 | powerpc64le | powerpcle | powerpcspe \
+			| pru \
+			| pyramid \
+			| riscv | riscv32 | riscv64 \
+			| rl78 | romp | rs6000 | rx \
+			| score \
+			| sh | sh[1234] | sh[24]a | sh[24]ae[lb] | sh[23]e | she[lb] | sh[lb]e \
+			| sh[1234]e[lb] |  sh[12345][lb]e | sh[23]ele | sh64 | sh64le \
+			| sparc | sparc64 | sparc64b | sparc64v | sparc86x | sparclet \
+			| sparclite \
+			| sparcv8 | sparcv9 | sparcv9b | sparcv9v | sv1 | sx* \
+			| spu \
+			| tahoe \
+			| tic30 | tic4x | tic54x | tic55x | tic6x | tic80 \
+			| tron \
+			| ubicom32 \
+			| v850 | v850e | v850e1 | v850es | v850e2 | v850e2v3 \
+			| vax \
+			| visium \
+			| wasm32 \
+			| we32k \
+			| x86 | x86_64 | xc16x | xgate | xps100 \
+			| xstormy16 | xtensa* \
+			| ymp \
+			| z8k | z80)
+				;;
+
+			*)
+				echo Invalid configuration \`"$1"\': machine \`"$cpu-$vendor"\' not recognized 1>&2
+				exit 1
+				;;
+		esac
+		;;
+esac
+
+# Here we canonicalize certain aliases for manufacturers.
+case $vendor in
+	digital*)
+		vendor=dec
+		;;
+	commodore*)
+		vendor=cbm
+		;;
+	*)
+		;;
+esac
+
+# Decode manufacturer-specific aliases for certain operating systems.
+
+if [ x$os != x ]
+then
+case $os in
+	# First match some system type aliases that might get confused
+	# with valid system types.
+	# solaris* is a basic system type, with this one exception.
+	auroraux)
+		os=auroraux
+		;;
+	bluegene*)
+		os=cnk
+		;;
+	solaris1 | solaris1.*)
+		os=`echo $os | sed -e 's|solaris1|sunos4|'`
+		;;
+	solaris)
+		os=solaris2
+		;;
+	unixware*)
+		os=sysv4.2uw
+		;;
+	gnu/linux*)
+		os=`echo $os | sed -e 's|gnu/linux|linux-gnu|'`
+		;;
+	# es1800 is here to avoid being matched by es* (a different OS)
+	es1800*)
+		os=ose
+		;;
+	# Some version numbers need modification
+	chorusos*)
+		os=chorusos
+		;;
+	isc)
+		os=isc2.2
+		;;
+	sco6)
+		os=sco5v6
+		;;
+	sco5)
+		os=sco3.2v5
+		;;
+	sco4)
+		os=sco3.2v4
+		;;
+	sco3.2.[4-9]*)
+		os=`echo $os | sed -e 's/sco3.2./sco3.2v/'`
+		;;
+	sco3.2v[4-9]* | sco5v6*)
+		# Don't forget version if it is 3.2v4 or newer.
+		;;
+	scout)
+		# Don't match below
+		;;
+	sco*)
+		os=sco3.2v2
+		;;
+	psos*)
+		os=psos
+		;;
+	# Now accept the basic system types.
+	# The portable systems comes first.
+	# Each alternative MUST end in a * to match a version number.
+	# sysv* is not here because it comes later, after sysvr4.
+	gnu* | bsd* | mach* | minix* | genix* | ultrix* | irix* \
+	     | *vms* | esix* | aix* | cnk* | sunos | sunos[34]*\
+	     | hpux* | unos* | osf* | luna* | dgux* | auroraux* | solaris* \
+	     | sym* | kopensolaris* | plan9* \
+	     | amigaos* | amigados* | msdos* | newsos* | unicos* | aof* \
+	     | aos* | aros* | cloudabi* | sortix* \
+	     | nindy* | vxsim* | vxworks* | ebmon* | hms* | mvs* \
+	     | clix* | riscos* | uniplus* | iris* | isc* | rtu* | xenix* \
+	     | knetbsd* | mirbsd* | netbsd* \
+	     | bitrig* | openbsd* | solidbsd* | libertybsd* \
+	     | ekkobsd* | kfreebsd* | freebsd* | riscix* | lynxos* \
+	     | bosx* | nextstep* | cxux* | aout* | elf* | oabi* \
+	     | ptx* | coff* | ecoff* | winnt* | domain* | vsta* \
+	     | udi* | eabi* | lites* | ieee* | go32* | aux* | hcos* \
+	     | chorusrdb* | cegcc* | glidix* \
+	     | cygwin* | msys* | pe* | moss* | proelf* | rtems* \
+	     | midipix* | mingw32* | mingw64* | linux-gnu* | linux-android* \
+	     | linux-newlib* | linux-musl* | linux-uclibc* \
+	     | uxpv* | beos* | mpeix* | udk* | moxiebox* \
+	     | interix* | uwin* | mks* | rhapsody* | darwin* \
+	     | openstep* | oskit* | conix* | pw32* | nonstopux* \
+	     | storm-chaos* | tops10* | tenex* | tops20* | its* \
+	     | os2* | vos* | palmos* | uclinux* | nucleus* \
+	     | morphos* | superux* | rtmk* | windiss* \
+	     | powermax* | dnix* | nx6 | nx7 | sei* | dragonfly* \
+	     | skyos* | haiku* | rdos* | toppers* | drops* | es* \
+	     | onefs* | tirtos* | phoenix* | fuchsia* | redox* | bme* \
+	     | midnightbsd*)
+	# Remember, each alternative MUST END IN *, to match a version number.
+		;;
+	qnx*)
+		case $cpu in
+		    x86 | i*86)
+			;;
+		    *)
+			os=nto-$os
+			;;
+		esac
+		;;
+	hiux*)
+		os=hiuxwe2
+		;;
+	nto-qnx*)
+		;;
+	nto*)
+		os=`echo $os | sed -e 's|nto|nto-qnx|'`
+		;;
+	sim | xray | os68k* | v88r* \
+	    | windows* | osx | abug | netware* | os9* \
+	    | macos* | mpw* | magic* | mmixware* | mon960* | lnews*)
+		;;
+	linux-dietlibc)
+		os=linux-dietlibc
+		;;
+	linux*)
+		os=`echo $os | sed -e 's|linux|linux-gnu|'`
+		;;
+	lynx*178)
+		os=lynxos178
+		;;
+	lynx*5)
+		os=lynxos5
+		;;
+	lynx*)
+		os=lynxos
+		;;
+	mac*)
+		os=`echo "$os" | sed -e 's|mac|macos|'`
+		;;
+	opened*)
+		os=openedition
+		;;
+	os400*)
+		os=os400
+		;;
+	sunos5*)
+		os=`echo "$os" | sed -e 's|sunos5|solaris2|'`
+		;;
+	sunos6*)
+		os=`echo "$os" | sed -e 's|sunos6|solaris3|'`
+		;;
+	wince*)
+		os=wince
+		;;
+	utek*)
+		os=bsd
+		;;
+	dynix*)
+		os=bsd
+		;;
+	acis*)
+		os=aos
+		;;
+	atheos*)
+		os=atheos
+		;;
+	syllable*)
+		os=syllable
+		;;
+	386bsd)
+		os=bsd
+		;;
+	ctix* | uts*)
+		os=sysv
+		;;
+	nova*)
+		os=rtmk-nova
+		;;
+	ns2)
+		os=nextstep2
+		;;
+	nsk*)
+		os=nsk
+		;;
+	# Preserve the version number of sinix5.
+	sinix5.*)
+		os=`echo $os | sed -e 's|sinix|sysv|'`
+		;;
+	sinix*)
+		os=sysv4
+		;;
+	tpf*)
+		os=tpf
+		;;
+	triton*)
+		os=sysv3
+		;;
+	oss*)
+		os=sysv3
+		;;
+	svr4*)
+		os=sysv4
+		;;
+	svr3)
+		os=sysv3
+		;;
+	sysvr4)
+		os=sysv4
+		;;
+	# This must come after sysvr4.
+	sysv*)
+		;;
+	ose*)
+		os=ose
+		;;
+	*mint | mint[0-9]* | *MiNT | MiNT[0-9]*)
+		os=mint
+		;;
+	zvmoe)
+		os=zvmoe
+		;;
+	dicos*)
+		os=dicos
+		;;
+	pikeos*)
+		# Until real need of OS specific support for
+		# particular features comes up, bare metal
+		# configurations are quite functional.
+		case $cpu in
+		    arm*)
+			os=eabi
+			;;
+		    *)
+			os=elf
+			;;
+		esac
+		;;
+	nacl*)
+		;;
+	ios)
+		;;
+	none)
+		;;
+	*-eabi)
+		;;
+	*)
+		echo Invalid configuration \`"$1"\': system \`"$os"\' not recognized 1>&2
+		exit 1
+		;;
+esac
+else
+
+# Here we handle the default operating systems that come with various machines.
+# The value should be what the vendor currently ships out the door with their
+# machine or put another way, the most popular os provided with the machine.
+
+# Note that if you're going to try to match "-MANUFACTURER" here (say,
+# "-sun"), then you have to tell the case statement up towards the top
+# that MANUFACTURER isn't an operating system.  Otherwise, code above
+# will signal an error saying that MANUFACTURER isn't an operating
+# system, and we'll never get to this point.
+
+case $cpu-$vendor in
+	score-*)
+		os=elf
+		;;
+	spu-*)
+		os=elf
+		;;
+	*-acorn)
+		os=riscix1.2
+		;;
+	arm*-rebel)
+		os=linux
+		;;
+	arm*-semi)
+		os=aout
+		;;
+	c4x-* | tic4x-*)
+		os=coff
+		;;
+	c8051-*)
+		os=elf
+		;;
+	clipper-intergraph)
+		os=clix
+		;;
+	hexagon-*)
+		os=elf
+		;;
+	tic54x-*)
+		os=coff
+		;;
+	tic55x-*)
+		os=coff
+		;;
+	tic6x-*)
+		os=coff
+		;;
+	# This must come before the *-dec entry.
+	pdp10-*)
+		os=tops20
+		;;
+	pdp11-*)
+		os=none
+		;;
+	*-dec | vax-*)
+		os=ultrix4.2
+		;;
+	m68*-apollo)
+		os=domain
+		;;
+	i386-sun)
+		os=sunos4.0.2
+		;;
+	m68000-sun)
+		os=sunos3
+		;;
+	m68*-cisco)
+		os=aout
+		;;
+	mep-*)
+		os=elf
+		;;
+	mips*-cisco)
+		os=elf
+		;;
+	mips*-*)
+		os=elf
+		;;
+	or32-*)
+		os=coff
+		;;
+	*-tti)	# must be before sparc entry or we get the wrong os.
+		os=sysv3
+		;;
+	sparc-* | *-sun)
+		os=sunos4.1.1
+		;;
+	pru-*)
+		os=elf
+		;;
+	*-be)
+		os=beos
+		;;
+	*-ibm)
+		os=aix
+		;;
+	*-knuth)
+		os=mmixware
+		;;
+	*-wec)
+		os=proelf
+		;;
+	*-winbond)
+		os=proelf
+		;;
+	*-oki)
+		os=proelf
+		;;
+	*-hp)
+		os=hpux
+		;;
+	*-hitachi)
+		os=hiux
+		;;
+	i860-* | *-att | *-ncr | *-altos | *-motorola | *-convergent)
+		os=sysv
+		;;
+	*-cbm)
+		os=amigaos
+		;;
+	*-dg)
+		os=dgux
+		;;
+	*-dolphin)
+		os=sysv3
+		;;
+	m68k-ccur)
+		os=rtu
+		;;
+	m88k-omron*)
+		os=luna
+		;;
+	*-next)
+		os=nextstep
+		;;
+	*-sequent)
+		os=ptx
+		;;
+	*-crds)
+		os=unos
+		;;
+	*-ns)
+		os=genix
+		;;
+	i370-*)
+		os=mvs
+		;;
+	*-gould)
+		os=sysv
+		;;
+	*-highlevel)
+		os=bsd
+		;;
+	*-encore)
+		os=bsd
+		;;
+	*-sgi)
+		os=irix
+		;;
+	*-siemens)
+		os=sysv4
+		;;
+	*-masscomp)
+		os=rtu
+		;;
+	f30[01]-fujitsu | f700-fujitsu)
+		os=uxpv
+		;;
+	*-rom68k)
+		os=coff
+		;;
+	*-*bug)
+		os=coff
+		;;
+	*-apple)
+		os=macos
+		;;
+	*-atari*)
+		os=mint
+		;;
+	*-wrs)
+		os=vxworks
+		;;
+	*)
+		os=none
+		;;
+esac
+fi
+
+# Here we handle the case where we know the os, and the CPU type, but not the
+# manufacturer.  We pick the logical manufacturer.
+case $vendor in
+	unknown)
+		case $os in
+			riscix*)
+				vendor=acorn
+				;;
+			sunos*)
+				vendor=sun
+				;;
+			cnk*|-aix*)
+				vendor=ibm
+				;;
+			beos*)
+				vendor=be
+				;;
+			hpux*)
+				vendor=hp
+				;;
+			mpeix*)
+				vendor=hp
+				;;
+			hiux*)
+				vendor=hitachi
+				;;
+			unos*)
+				vendor=crds
+				;;
+			dgux*)
+				vendor=dg
+				;;
+			luna*)
+				vendor=omron
+				;;
+			genix*)
+				vendor=ns
+				;;
+			clix*)
+				vendor=intergraph
+				;;
+			mvs* | opened*)
+				vendor=ibm
+				;;
+			os400*)
+				vendor=ibm
+				;;
+			ptx*)
+				vendor=sequent
+				;;
+			tpf*)
+				vendor=ibm
+				;;
+			vxsim* | vxworks* | windiss*)
+				vendor=wrs
+				;;
+			aux*)
+				vendor=apple
+				;;
+			hms*)
+				vendor=hitachi
+				;;
+			mpw* | macos*)
+				vendor=apple
+				;;
+			*mint | mint[0-9]* | *MiNT | MiNT[0-9]*)
+				vendor=atari
+				;;
+			vos*)
+				vendor=stratus
+				;;
+		esac
+		;;
+esac
+
+echo "$cpu-$vendor-$os"
+exit
+
+# Local variables:
+# eval: (add-hook 'before-save-hook 'time-stamp)
+# time-stamp-start: "timestamp='"
+# time-stamp-format: "%:y-%02m-%02d"
+# time-stamp-end: "'"
+# End:
diff --git a/configure b/configure
new file mode 100755
index 0000000..2624890
--- /dev/null
+++ b/configure
@@ -0,0 +1,20948 @@
+#! /bin/sh
+# Guess values for system-dependent variables and create Makefiles.
+# Generated by GNU Autoconf 2.69 for OpenVPN 2.5_beta3.
+#
+# Report bugs to <openvpn-users@lists.sourceforge.net>.
+#
+#
+# Copyright (C) 1992-1996, 1998-2012 Free Software Foundation, Inc.
+#
+#
+# This configure script is free software; the Free Software Foundation
+# gives unlimited permission to copy, distribute and modify it.
+## -------------------- ##
+## M4sh Initialization. ##
+## -------------------- ##
+
+# Be more Bourne compatible
+DUALCASE=1; export DUALCASE # for MKS sh
+if test -n "${ZSH_VERSION+set}" && (emulate sh) >/dev/null 2>&1; then :
+  emulate sh
+  NULLCMD=:
+  # Pre-4.2 versions of Zsh do word splitting on ${1+"$@"}, which
+  # is contrary to our usage.  Disable this feature.
+  alias -g '${1+"$@"}'='"$@"'
+  setopt NO_GLOB_SUBST
+else
+  case `(set -o) 2>/dev/null` in #(
+  *posix*) :
+    set -o posix ;; #(
+  *) :
+     ;;
+esac
+fi
+
+
+as_nl='
+'
+export as_nl
+# Printing a long string crashes Solaris 7 /usr/bin/printf.
+as_echo='\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\'
+as_echo=$as_echo$as_echo$as_echo$as_echo$as_echo
+as_echo=$as_echo$as_echo$as_echo$as_echo$as_echo$as_echo
+# Prefer a ksh shell builtin over an external printf program on Solaris,
+# but without wasting forks for bash or zsh.
+if test -z "$BASH_VERSION$ZSH_VERSION" \
+    && (test "X`print -r -- $as_echo`" = "X$as_echo") 2>/dev/null; then
+  as_echo='print -r --'
+  as_echo_n='print -rn --'
+elif (test "X`printf %s $as_echo`" = "X$as_echo") 2>/dev/null; then
+  as_echo='printf %s\n'
+  as_echo_n='printf %s'
+else
+  if test "X`(/usr/ucb/echo -n -n $as_echo) 2>/dev/null`" = "X-n $as_echo"; then
+    as_echo_body='eval /usr/ucb/echo -n "$1$as_nl"'
+    as_echo_n='/usr/ucb/echo -n'
+  else
+    as_echo_body='eval expr "X$1" : "X\\(.*\\)"'
+    as_echo_n_body='eval
+      arg=$1;
+      case $arg in #(
+      *"$as_nl"*)
+	expr "X$arg" : "X\\(.*\\)$as_nl";
+	arg=`expr "X$arg" : ".*$as_nl\\(.*\\)"`;;
+      esac;
+      expr "X$arg" : "X\\(.*\\)" | tr -d "$as_nl"
+    '
+    export as_echo_n_body
+    as_echo_n='sh -c $as_echo_n_body as_echo'
+  fi
+  export as_echo_body
+  as_echo='sh -c $as_echo_body as_echo'
+fi
+
+# The user is always right.
+if test "${PATH_SEPARATOR+set}" != set; then
+  PATH_SEPARATOR=:
+  (PATH='/bin;/bin'; FPATH=$PATH; sh -c :) >/dev/null 2>&1 && {
+    (PATH='/bin:/bin'; FPATH=$PATH; sh -c :) >/dev/null 2>&1 ||
+      PATH_SEPARATOR=';'
+  }
+fi
+
+
+# IFS
+# We need space, tab and new line, in precisely that order.  Quoting is
+# there to prevent editors from complaining about space-tab.
+# (If _AS_PATH_WALK were called with IFS unset, it would disable word
+# splitting by setting IFS to empty value.)
+IFS=" ""	$as_nl"
+
+# Find who we are.  Look in the path if we contain no directory separator.
+as_myself=
+case $0 in #((
+  *[\\/]* ) as_myself=$0 ;;
+  *) as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+for as_dir in $PATH
+do
+  IFS=$as_save_IFS
+  test -z "$as_dir" && as_dir=.
+    test -r "$as_dir/$0" && as_myself=$as_dir/$0 && break
+  done
+IFS=$as_save_IFS
+
+     ;;
+esac
+# We did not find ourselves, most probably we were run as `sh COMMAND'
+# in which case we are not to be found in the path.
+if test "x$as_myself" = x; then
+  as_myself=$0
+fi
+if test ! -f "$as_myself"; then
+  $as_echo "$as_myself: error: cannot find myself; rerun with an absolute file name" >&2
+  exit 1
+fi
+
+# Unset variables that we do not need and which cause bugs (e.g. in
+# pre-3.0 UWIN ksh).  But do not cause bugs in bash 2.01; the "|| exit 1"
+# suppresses any "Segmentation fault" message there.  '((' could
+# trigger a bug in pdksh 5.2.14.
+for as_var in BASH_ENV ENV MAIL MAILPATH
+do eval test x\${$as_var+set} = xset \
+  && ( (unset $as_var) || exit 1) >/dev/null 2>&1 && unset $as_var || :
+done
+PS1='$ '
+PS2='> '
+PS4='+ '
+
+# NLS nuisances.
+LC_ALL=C
+export LC_ALL
+LANGUAGE=C
+export LANGUAGE
+
+# CDPATH.
+(unset CDPATH) >/dev/null 2>&1 && unset CDPATH
+
+# Use a proper internal environment variable to ensure we don't fall
+  # into an infinite loop, continuously re-executing ourselves.
+  if test x"${_as_can_reexec}" != xno && test "x$CONFIG_SHELL" != x; then
+    _as_can_reexec=no; export _as_can_reexec;
+    # We cannot yet assume a decent shell, so we have to provide a
+# neutralization value for shells without unset; and this also
+# works around shells that cannot unset nonexistent variables.
+# Preserve -v and -x to the replacement shell.
+BASH_ENV=/dev/null
+ENV=/dev/null
+(unset BASH_ENV) >/dev/null 2>&1 && unset BASH_ENV ENV
+case $- in # ((((
+  *v*x* | *x*v* ) as_opts=-vx ;;
+  *v* ) as_opts=-v ;;
+  *x* ) as_opts=-x ;;
+  * ) as_opts= ;;
+esac
+exec $CONFIG_SHELL $as_opts "$as_myself" ${1+"$@"}
+# Admittedly, this is quite paranoid, since all the known shells bail
+# out after a failed `exec'.
+$as_echo "$0: could not re-execute with $CONFIG_SHELL" >&2
+as_fn_exit 255
+  fi
+  # We don't want this to propagate to other subprocesses.
+          { _as_can_reexec=; unset _as_can_reexec;}
+if test "x$CONFIG_SHELL" = x; then
+  as_bourne_compatible="if test -n \"\${ZSH_VERSION+set}\" && (emulate sh) >/dev/null 2>&1; then :
+  emulate sh
+  NULLCMD=:
+  # Pre-4.2 versions of Zsh do word splitting on \${1+\"\$@\"}, which
+  # is contrary to our usage.  Disable this feature.
+  alias -g '\${1+\"\$@\"}'='\"\$@\"'
+  setopt NO_GLOB_SUBST
+else
+  case \`(set -o) 2>/dev/null\` in #(
+  *posix*) :
+    set -o posix ;; #(
+  *) :
+     ;;
+esac
+fi
+"
+  as_required="as_fn_return () { (exit \$1); }
+as_fn_success () { as_fn_return 0; }
+as_fn_failure () { as_fn_return 1; }
+as_fn_ret_success () { return 0; }
+as_fn_ret_failure () { return 1; }
+
+exitcode=0
+as_fn_success || { exitcode=1; echo as_fn_success failed.; }
+as_fn_failure && { exitcode=1; echo as_fn_failure succeeded.; }
+as_fn_ret_success || { exitcode=1; echo as_fn_ret_success failed.; }
+as_fn_ret_failure && { exitcode=1; echo as_fn_ret_failure succeeded.; }
+if ( set x; as_fn_ret_success y && test x = \"\$1\" ); then :
+
+else
+  exitcode=1; echo positional parameters were not saved.
+fi
+test x\$exitcode = x0 || exit 1
+test -x / || exit 1"
+  as_suggested="  as_lineno_1=";as_suggested=$as_suggested$LINENO;as_suggested=$as_suggested" as_lineno_1a=\$LINENO
+  as_lineno_2=";as_suggested=$as_suggested$LINENO;as_suggested=$as_suggested" as_lineno_2a=\$LINENO
+  eval 'test \"x\$as_lineno_1'\$as_run'\" != \"x\$as_lineno_2'\$as_run'\" &&
+  test \"x\`expr \$as_lineno_1'\$as_run' + 1\`\" = \"x\$as_lineno_2'\$as_run'\"' || exit 1
+test \$(( 1 + 1 )) = 2 || exit 1
+
+  test -n \"\${ZSH_VERSION+set}\${BASH_VERSION+set}\" || (
+    ECHO='\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\'
+    ECHO=\$ECHO\$ECHO\$ECHO\$ECHO\$ECHO
+    ECHO=\$ECHO\$ECHO\$ECHO\$ECHO\$ECHO\$ECHO
+    PATH=/empty FPATH=/empty; export PATH FPATH
+    test \"X\`printf %s \$ECHO\`\" = \"X\$ECHO\" \\
+      || test \"X\`print -r -- \$ECHO\`\" = \"X\$ECHO\" ) || exit 1"
+  if (eval "$as_required") 2>/dev/null; then :
+  as_have_required=yes
+else
+  as_have_required=no
+fi
+  if test x$as_have_required = xyes && (eval "$as_suggested") 2>/dev/null; then :
+
+else
+  as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+as_found=false
+for as_dir in /bin$PATH_SEPARATOR/usr/bin$PATH_SEPARATOR$PATH
+do
+  IFS=$as_save_IFS
+  test -z "$as_dir" && as_dir=.
+  as_found=:
+  case $as_dir in #(
+	 /*)
+	   for as_base in sh bash ksh sh5; do
+	     # Try only shells that exist, to save several forks.
+	     as_shell=$as_dir/$as_base
+	     if { test -f "$as_shell" || test -f "$as_shell.exe"; } &&
+		    { $as_echo "$as_bourne_compatible""$as_required" | as_run=a "$as_shell"; } 2>/dev/null; then :
+  CONFIG_SHELL=$as_shell as_have_required=yes
+		   if { $as_echo "$as_bourne_compatible""$as_suggested" | as_run=a "$as_shell"; } 2>/dev/null; then :
+  break 2
+fi
+fi
+	   done;;
+       esac
+  as_found=false
+done
+$as_found || { if { test -f "$SHELL" || test -f "$SHELL.exe"; } &&
+	      { $as_echo "$as_bourne_compatible""$as_required" | as_run=a "$SHELL"; } 2>/dev/null; then :
+  CONFIG_SHELL=$SHELL as_have_required=yes
+fi; }
+IFS=$as_save_IFS
+
+
+      if test "x$CONFIG_SHELL" != x; then :
+  export CONFIG_SHELL
+             # We cannot yet assume a decent shell, so we have to provide a
+# neutralization value for shells without unset; and this also
+# works around shells that cannot unset nonexistent variables.
+# Preserve -v and -x to the replacement shell.
+BASH_ENV=/dev/null
+ENV=/dev/null
+(unset BASH_ENV) >/dev/null 2>&1 && unset BASH_ENV ENV
+case $- in # ((((
+  *v*x* | *x*v* ) as_opts=-vx ;;
+  *v* ) as_opts=-v ;;
+  *x* ) as_opts=-x ;;
+  * ) as_opts= ;;
+esac
+exec $CONFIG_SHELL $as_opts "$as_myself" ${1+"$@"}
+# Admittedly, this is quite paranoid, since all the known shells bail
+# out after a failed `exec'.
+$as_echo "$0: could not re-execute with $CONFIG_SHELL" >&2
+exit 255
+fi
+
+    if test x$as_have_required = xno; then :
+  $as_echo "$0: This script requires a shell more modern than all"
+  $as_echo "$0: the shells that I found on your system."
+  if test x${ZSH_VERSION+set} = xset ; then
+    $as_echo "$0: In particular, zsh $ZSH_VERSION has bugs and should"
+    $as_echo "$0: be upgraded to zsh 4.3.4 or later."
+  else
+    $as_echo "$0: Please tell bug-autoconf@gnu.org and openvpn-users@lists.sourceforge.net
+$0: about your system, including any error possibly output
+$0: before this message. Then install a modern shell, or
+$0: manually run the script under such a shell if you do
+$0: have one."
+  fi
+  exit 1
+fi
+fi
+fi
+SHELL=${CONFIG_SHELL-/bin/sh}
+export SHELL
+# Unset more variables known to interfere with behavior of common tools.
+CLICOLOR_FORCE= GREP_OPTIONS=
+unset CLICOLOR_FORCE GREP_OPTIONS
+
+## --------------------- ##
+## M4sh Shell Functions. ##
+## --------------------- ##
+# as_fn_unset VAR
+# ---------------
+# Portably unset VAR.
+as_fn_unset ()
+{
+  { eval $1=; unset $1;}
+}
+as_unset=as_fn_unset
+
+# as_fn_set_status STATUS
+# -----------------------
+# Set $? to STATUS, without forking.
+as_fn_set_status ()
+{
+  return $1
+} # as_fn_set_status
+
+# as_fn_exit STATUS
+# -----------------
+# Exit the shell with STATUS, even in a "trap 0" or "set -e" context.
+as_fn_exit ()
+{
+  set +e
+  as_fn_set_status $1
+  exit $1
+} # as_fn_exit
+
+# as_fn_mkdir_p
+# -------------
+# Create "$as_dir" as a directory, including parents if necessary.
+as_fn_mkdir_p ()
+{
+
+  case $as_dir in #(
+  -*) as_dir=./$as_dir;;
+  esac
+  test -d "$as_dir" || eval $as_mkdir_p || {
+    as_dirs=
+    while :; do
+      case $as_dir in #(
+      *\'*) as_qdir=`$as_echo "$as_dir" | sed "s/'/'\\\\\\\\''/g"`;; #'(
+      *) as_qdir=$as_dir;;
+      esac
+      as_dirs="'$as_qdir' $as_dirs"
+      as_dir=`$as_dirname -- "$as_dir" ||
+$as_expr X"$as_dir" : 'X\(.*[^/]\)//*[^/][^/]*/*$' \| \
+	 X"$as_dir" : 'X\(//\)[^/]' \| \
+	 X"$as_dir" : 'X\(//\)$' \| \
+	 X"$as_dir" : 'X\(/\)' \| . 2>/dev/null ||
+$as_echo X"$as_dir" |
+    sed '/^X\(.*[^/]\)\/\/*[^/][^/]*\/*$/{
+	    s//\1/
+	    q
+	  }
+	  /^X\(\/\/\)[^/].*/{
+	    s//\1/
+	    q
+	  }
+	  /^X\(\/\/\)$/{
+	    s//\1/
+	    q
+	  }
+	  /^X\(\/\).*/{
+	    s//\1/
+	    q
+	  }
+	  s/.*/./; q'`
+      test -d "$as_dir" && break
+    done
+    test -z "$as_dirs" || eval "mkdir $as_dirs"
+  } || test -d "$as_dir" || as_fn_error $? "cannot create directory $as_dir"
+
+
+} # as_fn_mkdir_p
+
+# as_fn_executable_p FILE
+# -----------------------
+# Test if FILE is an executable regular file.
+as_fn_executable_p ()
+{
+  test -f "$1" && test -x "$1"
+} # as_fn_executable_p
+# as_fn_append VAR VALUE
+# ----------------------
+# Append the text in VALUE to the end of the definition contained in VAR. Take
+# advantage of any shell optimizations that allow amortized linear growth over
+# repeated appends, instead of the typical quadratic growth present in naive
+# implementations.
+if (eval "as_var=1; as_var+=2; test x\$as_var = x12") 2>/dev/null; then :
+  eval 'as_fn_append ()
+  {
+    eval $1+=\$2
+  }'
+else
+  as_fn_append ()
+  {
+    eval $1=\$$1\$2
+  }
+fi # as_fn_append
+
+# as_fn_arith ARG...
+# ------------------
+# Perform arithmetic evaluation on the ARGs, and store the result in the
+# global $as_val. Take advantage of shells that can avoid forks. The arguments
+# must be portable across $(()) and expr.
+if (eval "test \$(( 1 + 1 )) = 2") 2>/dev/null; then :
+  eval 'as_fn_arith ()
+  {
+    as_val=$(( $* ))
+  }'
+else
+  as_fn_arith ()
+  {
+    as_val=`expr "$@" || test $? -eq 1`
+  }
+fi # as_fn_arith
+
+
+# as_fn_error STATUS ERROR [LINENO LOG_FD]
+# ----------------------------------------
+# Output "`basename $0`: error: ERROR" to stderr. If LINENO and LOG_FD are
+# provided, also output the error to LOG_FD, referencing LINENO. Then exit the
+# script with STATUS, using 1 if that was 0.
+as_fn_error ()
+{
+  as_status=$1; test $as_status -eq 0 && as_status=1
+  if test "$4"; then
+    as_lineno=${as_lineno-"$3"} as_lineno_stack=as_lineno_stack=$as_lineno_stack
+    $as_echo "$as_me:${as_lineno-$LINENO}: error: $2" >&$4
+  fi
+  $as_echo "$as_me: error: $2" >&2
+  as_fn_exit $as_status
+} # as_fn_error
+
+if expr a : '\(a\)' >/dev/null 2>&1 &&
+   test "X`expr 00001 : '.*\(...\)'`" = X001; then
+  as_expr=expr
+else
+  as_expr=false
+fi
+
+if (basename -- /) >/dev/null 2>&1 && test "X`basename -- / 2>&1`" = "X/"; then
+  as_basename=basename
+else
+  as_basename=false
+fi
+
+if (as_dir=`dirname -- /` && test "X$as_dir" = X/) >/dev/null 2>&1; then
+  as_dirname=dirname
+else
+  as_dirname=false
+fi
+
+as_me=`$as_basename -- "$0" ||
+$as_expr X/"$0" : '.*/\([^/][^/]*\)/*$' \| \
+	 X"$0" : 'X\(//\)$' \| \
+	 X"$0" : 'X\(/\)' \| . 2>/dev/null ||
+$as_echo X/"$0" |
+    sed '/^.*\/\([^/][^/]*\)\/*$/{
+	    s//\1/
+	    q
+	  }
+	  /^X\/\(\/\/\)$/{
+	    s//\1/
+	    q
+	  }
+	  /^X\/\(\/\).*/{
+	    s//\1/
+	    q
+	  }
+	  s/.*/./; q'`
+
+# Avoid depending upon Character Ranges.
+as_cr_letters='abcdefghijklmnopqrstuvwxyz'
+as_cr_LETTERS='ABCDEFGHIJKLMNOPQRSTUVWXYZ'
+as_cr_Letters=$as_cr_letters$as_cr_LETTERS
+as_cr_digits='0123456789'
+as_cr_alnum=$as_cr_Letters$as_cr_digits
+
+
+  as_lineno_1=$LINENO as_lineno_1a=$LINENO
+  as_lineno_2=$LINENO as_lineno_2a=$LINENO
+  eval 'test "x$as_lineno_1'$as_run'" != "x$as_lineno_2'$as_run'" &&
+  test "x`expr $as_lineno_1'$as_run' + 1`" = "x$as_lineno_2'$as_run'"' || {
+  # Blame Lee E. McMahon (1931-1989) for sed's syntax.  :-)
+  sed -n '
+    p
+    /[$]LINENO/=
+  ' <$as_myself |
+    sed '
+      s/[$]LINENO.*/&-/
+      t lineno
+      b
+      :lineno
+      N
+      :loop
+      s/[$]LINENO\([^'$as_cr_alnum'_].*\n\)\(.*\)/\2\1\2/
+      t loop
+      s/-\n.*//
+    ' >$as_me.lineno &&
+  chmod +x "$as_me.lineno" ||
+    { $as_echo "$as_me: error: cannot create $as_me.lineno; rerun with a POSIX shell" >&2; as_fn_exit 1; }
+
+  # If we had to re-execute with $CONFIG_SHELL, we're ensured to have
+  # already done that, so ensure we don't try to do so again and fall
+  # in an infinite loop.  This has already happened in practice.
+  _as_can_reexec=no; export _as_can_reexec
+  # Don't try to exec as it changes $[0], causing all sort of problems
+  # (the dirname of $[0] is not the place where we might find the
+  # original and so on.  Autoconf is especially sensitive to this).
+  . "./$as_me.lineno"
+  # Exit status is that of the last command.
+  exit
+}
+
+ECHO_C= ECHO_N= ECHO_T=
+case `echo -n x` in #(((((
+-n*)
+  case `echo 'xy\c'` in
+  *c*) ECHO_T='	';;	# ECHO_T is single tab character.
+  xy)  ECHO_C='\c';;
+  *)   echo `echo ksh88 bug on AIX 6.1` > /dev/null
+       ECHO_T='	';;
+  esac;;
+*)
+  ECHO_N='-n';;
+esac
+
+rm -f conf$$ conf$$.exe conf$$.file
+if test -d conf$$.dir; then
+  rm -f conf$$.dir/conf$$.file
+else
+  rm -f conf$$.dir
+  mkdir conf$$.dir 2>/dev/null
+fi
+if (echo >conf$$.file) 2>/dev/null; then
+  if ln -s conf$$.file conf$$ 2>/dev/null; then
+    as_ln_s='ln -s'
+    # ... but there are two gotchas:
+    # 1) On MSYS, both `ln -s file dir' and `ln file dir' fail.
+    # 2) DJGPP < 2.04 has no symlinks; `ln -s' creates a wrapper executable.
+    # In both cases, we have to default to `cp -pR'.
+    ln -s conf$$.file conf$$.dir 2>/dev/null && test ! -f conf$$.exe ||
+      as_ln_s='cp -pR'
+  elif ln conf$$.file conf$$ 2>/dev/null; then
+    as_ln_s=ln
+  else
+    as_ln_s='cp -pR'
+  fi
+else
+  as_ln_s='cp -pR'
+fi
+rm -f conf$$ conf$$.exe conf$$.dir/conf$$.file conf$$.file
+rmdir conf$$.dir 2>/dev/null
+
+if mkdir -p . 2>/dev/null; then
+  as_mkdir_p='mkdir -p "$as_dir"'
+else
+  test -d ./-p && rmdir ./-p
+  as_mkdir_p=false
+fi
+
+as_test_x='test -x'
+as_executable_p=as_fn_executable_p
+
+# Sed expression to map a string onto a valid CPP name.
+as_tr_cpp="eval sed 'y%*$as_cr_letters%P$as_cr_LETTERS%;s%[^_$as_cr_alnum]%_%g'"
+
+# Sed expression to map a string onto a valid variable name.
+as_tr_sh="eval sed 'y%*+%pp%;s%[^_$as_cr_alnum]%_%g'"
+
+SHELL=${CONFIG_SHELL-/bin/sh}
+
+
+test -n "$DJDIR" || exec 7<&0 </dev/null
+exec 6>&1
+
+# Name of the host.
+# hostname on some systems (SVR3.2, old GNU/Linux) returns a bogus exit status,
+# so uname gets run too.
+ac_hostname=`(hostname || uname -n) 2>/dev/null | sed 1q`
+
+#
+# Initializations.
+#
+ac_default_prefix=/usr/local
+ac_clean_files=
+ac_config_libobj_dir=.
+LIBOBJS=
+cross_compiling=no
+subdirs=
+MFLAGS=
+MAKEFLAGS=
+
+# Identity of this package.
+PACKAGE_NAME='OpenVPN'
+PACKAGE_TARNAME='openvpn'
+PACKAGE_VERSION='2.5_beta3'
+PACKAGE_STRING='OpenVPN 2.5_beta3'
+PACKAGE_BUGREPORT='openvpn-users@lists.sourceforge.net'
+PACKAGE_URL=''
+
+ac_unique_file="src/openvpn/syshead.h"
+# Factoring default headers for most tests.
+ac_includes_default="\
+#include <stdio.h>
+#ifdef HAVE_SYS_TYPES_H
+# include <sys/types.h>
+#endif
+#ifdef HAVE_SYS_STAT_H
+# include <sys/stat.h>
+#endif
+#ifdef STDC_HEADERS
+# include <stdlib.h>
+# include <stddef.h>
+#else
+# ifdef HAVE_STDLIB_H
+#  include <stdlib.h>
+# endif
+#endif
+#ifdef HAVE_STRING_H
+# if !defined STDC_HEADERS && defined HAVE_MEMORY_H
+#  include <memory.h>
+# endif
+# include <string.h>
+#endif
+#ifdef HAVE_STRINGS_H
+# include <strings.h>
+#endif
+#ifdef HAVE_INTTYPES_H
+# include <inttypes.h>
+#endif
+#ifdef HAVE_STDINT_H
+# include <stdint.h>
+#endif
+#ifdef HAVE_UNISTD_H
+# include <unistd.h>
+#endif"
+
+ac_subst_vars='am__EXEEXT_FALSE
+am__EXEEXT_TRUE
+LTLIBOBJS
+LIBOBJS
+TEST_CFLAGS
+TEST_LDFLAGS
+ENABLE_UNITTESTS
+ENABLE_UNITTESTS_FALSE
+ENABLE_UNITTESTS_TRUE
+CMOCKA_LIBS
+CMOCKA_CFLAGS
+tmpfilesdir
+systemdunitdir
+sampledir
+plugindir
+OPENSSL_ENGINE_FALSE
+OPENSSL_ENGINE_TRUE
+HAVE_LD_WRAP_SUPPORT_FALSE
+HAVE_LD_WRAP_SUPPORT_TRUE
+ENABLE_PLUGIN_DOWN_ROOT_FALSE
+ENABLE_PLUGIN_DOWN_ROOT_TRUE
+ENABLE_PLUGIN_AUTH_PAM_FALSE
+ENABLE_PLUGIN_AUTH_PAM_TRUE
+GIT_CHECKOUT_FALSE
+GIT_CHECKOUT_TRUE
+WIN32_FALSE
+WIN32_TRUE
+PLUGIN_AUTH_PAM_LIBS
+PLUGIN_AUTH_PAM_CFLAGS
+OPTIONAL_PKCS11_HELPER_LIBS
+OPTIONAL_PKCS11_HELPER_CFLAGS
+OPTIONAL_SYSTEMD_LIBS
+OPTIONAL_LZ4_LIBS
+OPTIONAL_LZ4_CFLAGS
+OPTIONAL_LZO_LIBS
+OPTIONAL_LZO_CFLAGS
+OPTIONAL_CRYPTO_LIBS
+OPTIONAL_CRYPTO_CFLAGS
+OPTIONAL_SELINUX_LIBS
+OPTIONAL_DL_LIBS
+TAP_WIN_MIN_MINOR
+TAP_WIN_MIN_MAJOR
+TAP_WIN_COMPONENT_ID
+OPTIONAL_INOTIFY_LIBS
+OPTIONAL_INOTIFY_CFLAGS
+P11KIT_LIBS
+P11KIT_CFLAGS
+HAVE_SITNL_FALSE
+HAVE_SITNL_TRUE
+libsystemd_LIBS
+libsystemd_CFLAGS
+ENABLE_SYSTEMD_FALSE
+ENABLE_SYSTEMD_TRUE
+LZ4_LIBS
+LZ4_CFLAGS
+LZO_LIBS
+LZO_CFLAGS
+MBEDTLS_LIBS
+MBEDTLS_CFLAGS
+OPENSSL_LIBS
+OPENSSL_CFLAGS
+PKCS11_HELPER_LIBS
+PKCS11_HELPER_CFLAGS
+LIBPAM_LIBS
+LIBPAM_CFLAGS
+SELINUX_LIBS
+TAP_CFLAGS
+SOCKETS_LIBS
+DL_LIBS
+RC
+LT_SYS_LIBRARY_PATH
+OTOOL64
+OTOOL
+LIPO
+NMEDIT
+DSYMUTIL
+MANIFEST_TOOL
+RANLIB
+ac_ct_AR
+AR
+NM
+ac_ct_DUMPBIN
+DUMPBIN
+LD
+FGREP
+LIBTOOL
+OBJDUMP
+DLLTOOL
+AS
+HAVE_PYDOCUTILS_FALSE
+HAVE_PYDOCUTILS_TRUE
+RST2HTML
+RST2MAN
+TMPFILES_DIR
+SYSTEMD_UNIT_DIR
+SYSTEMD_ASK_PASSWORD
+GIT
+NETSTAT
+IPROUTE
+ROUTE
+IFCONFIG
+SED
+LN_S
+PKG_CONFIG_LIBDIR
+PKG_CONFIG_PATH
+PKG_CONFIG
+TARGET_LINUX_FALSE
+TARGET_LINUX_TRUE
+PLUGINDIR
+EGREP
+GREP
+CPP
+am__fastdepCC_FALSE
+am__fastdepCC_TRUE
+CCDEPMODE
+am__nodep
+AMDEPBACKSLASH
+AMDEP_FALSE
+AMDEP_TRUE
+am__include
+DEPDIR
+OBJEXT
+EXEEXT
+ac_ct_CC
+CPPFLAGS
+LDFLAGS
+CFLAGS
+CC
+host_os
+host_vendor
+host_cpu
+host
+build_os
+build_vendor
+build_cpu
+build
+AM_BACKSLASH
+AM_DEFAULT_VERBOSITY
+AM_DEFAULT_V
+AM_V
+am__untar
+am__tar
+AMTAR
+am__leading_dot
+SET_MAKE
+AWK
+mkdir_p
+MKDIR_P
+INSTALL_STRIP_PROGRAM
+STRIP
+install_sh
+MAKEINFO
+AUTOHEADER
+AUTOMAKE
+AUTOCONF
+ACLOCAL
+VERSION
+PACKAGE
+CYGPATH_W
+am__isrc
+INSTALL_DATA
+INSTALL_SCRIPT
+INSTALL_PROGRAM
+OPENVPN_VERSION_PATCH
+OPENVPN_VERSION_MINOR
+OPENVPN_VERSION_MAJOR
+target_alias
+host_alias
+build_alias
+LIBS
+ECHO_T
+ECHO_N
+ECHO_C
+DEFS
+mandir
+localedir
+libdir
+psdir
+pdfdir
+dvidir
+htmldir
+infodir
+docdir
+oldincludedir
+includedir
+localstatedir
+sharedstatedir
+sysconfdir
+datadir
+datarootdir
+libexecdir
+sbindir
+bindir
+program_transform_name
+prefix
+exec_prefix
+PACKAGE_URL
+PACKAGE_BUGREPORT
+PACKAGE_STRING
+PACKAGE_VERSION
+PACKAGE_TARNAME
+PACKAGE_NAME
+PATH_SEPARATOR
+SHELL
+am__quote'
+ac_subst_files=''
+ac_user_opts='
+enable_option_checking
+enable_silent_rules
+enable_dependency_tracking
+enable_lzo
+enable_lz4
+enable_comp_stub
+enable_ofb_cfb
+enable_x509_alt_username
+enable_plugins
+enable_management
+enable_pkcs11
+enable_fragment
+enable_multihome
+enable_port_share
+enable_debug
+enable_small
+enable_iproute2
+enable_def_auth
+enable_pf
+enable_plugin_auth_pam
+enable_plugin_down_root
+enable_pam_dlopen
+enable_strict
+enable_pedantic
+enable_werror
+enable_strict_options
+enable_selinux
+enable_systemd
+enable_async_push
+with_special_build
+with_mem_check
+with_crypto_library
+enable_shared
+enable_static
+with_pic
+enable_fast_install
+with_aix_soname
+with_gnu_ld
+with_sysroot
+enable_libtool_lock
+enable_unit_tests
+'
+      ac_precious_vars='build_alias
+host_alias
+target_alias
+CC
+CFLAGS
+LDFLAGS
+LIBS
+CPPFLAGS
+CPP
+PLUGINDIR
+PKG_CONFIG
+PKG_CONFIG_PATH
+PKG_CONFIG_LIBDIR
+IFCONFIG
+ROUTE
+IPROUTE
+NETSTAT
+GIT
+SYSTEMD_ASK_PASSWORD
+SYSTEMD_UNIT_DIR
+TMPFILES_DIR
+RST2MAN
+RST2HTML
+LT_SYS_LIBRARY_PATH
+TAP_CFLAGS
+LIBPAM_CFLAGS
+LIBPAM_LIBS
+PKCS11_HELPER_CFLAGS
+PKCS11_HELPER_LIBS
+OPENSSL_CFLAGS
+OPENSSL_LIBS
+MBEDTLS_CFLAGS
+MBEDTLS_LIBS
+LZO_CFLAGS
+LZO_LIBS
+LZ4_CFLAGS
+LZ4_LIBS
+libsystemd_CFLAGS
+libsystemd_LIBS
+P11KIT_CFLAGS
+P11KIT_LIBS
+OPTIONAL_INOTIFY_CFLAGS
+OPTIONAL_INOTIFY_LIBS
+CMOCKA_CFLAGS
+CMOCKA_LIBS'
+
+
+# Initialize some variables set by options.
+ac_init_help=
+ac_init_version=false
+ac_unrecognized_opts=
+ac_unrecognized_sep=
+# The variables have the same names as the options, with
+# dashes changed to underlines.
+cache_file=/dev/null
+exec_prefix=NONE
+no_create=
+no_recursion=
+prefix=NONE
+program_prefix=NONE
+program_suffix=NONE
+program_transform_name=s,x,x,
+silent=
+site=
+srcdir=
+verbose=
+x_includes=NONE
+x_libraries=NONE
+
+# Installation directory options.
+# These are left unexpanded so users can "make install exec_prefix=/foo"
+# and all the variables that are supposed to be based on exec_prefix
+# by default will actually change.
+# Use braces instead of parens because sh, perl, etc. also accept them.
+# (The list follows the same order as the GNU Coding Standards.)
+bindir='${exec_prefix}/bin'
+sbindir='${exec_prefix}/sbin'
+libexecdir='${exec_prefix}/libexec'
+datarootdir='${prefix}/share'
+datadir='${datarootdir}'
+sysconfdir='${prefix}/etc'
+sharedstatedir='${prefix}/com'
+localstatedir='${prefix}/var'
+includedir='${prefix}/include'
+oldincludedir='/usr/include'
+docdir='${datarootdir}/doc/${PACKAGE_TARNAME}'
+infodir='${datarootdir}/info'
+htmldir='${docdir}'
+dvidir='${docdir}'
+pdfdir='${docdir}'
+psdir='${docdir}'
+libdir='${exec_prefix}/lib'
+localedir='${datarootdir}/locale'
+mandir='${datarootdir}/man'
+
+ac_prev=
+ac_dashdash=
+for ac_option
+do
+  # If the previous option needs an argument, assign it.
+  if test -n "$ac_prev"; then
+    eval $ac_prev=\$ac_option
+    ac_prev=
+    continue
+  fi
+
+  case $ac_option in
+  *=?*) ac_optarg=`expr "X$ac_option" : '[^=]*=\(.*\)'` ;;
+  *=)   ac_optarg= ;;
+  *)    ac_optarg=yes ;;
+  esac
+
+  # Accept the important Cygnus configure options, so we can diagnose typos.
+
+  case $ac_dashdash$ac_option in
+  --)
+    ac_dashdash=yes ;;
+
+  -bindir | --bindir | --bindi | --bind | --bin | --bi)
+    ac_prev=bindir ;;
+  -bindir=* | --bindir=* | --bindi=* | --bind=* | --bin=* | --bi=*)
+    bindir=$ac_optarg ;;
+
+  -build | --build | --buil | --bui | --bu)
+    ac_prev=build_alias ;;
+  -build=* | --build=* | --buil=* | --bui=* | --bu=*)
+    build_alias=$ac_optarg ;;
+
+  -cache-file | --cache-file | --cache-fil | --cache-fi \
+  | --cache-f | --cache- | --cache | --cach | --cac | --ca | --c)
+    ac_prev=cache_file ;;
+  -cache-file=* | --cache-file=* | --cache-fil=* | --cache-fi=* \
+  | --cache-f=* | --cache-=* | --cache=* | --cach=* | --cac=* | --ca=* | --c=*)
+    cache_file=$ac_optarg ;;
+
+  --config-cache | -C)
+    cache_file=config.cache ;;
+
+  -datadir | --datadir | --datadi | --datad)
+    ac_prev=datadir ;;
+  -datadir=* | --datadir=* | --datadi=* | --datad=*)
+    datadir=$ac_optarg ;;
+
+  -datarootdir | --datarootdir | --datarootdi | --datarootd | --dataroot \
+  | --dataroo | --dataro | --datar)
+    ac_prev=datarootdir ;;
+  -datarootdir=* | --datarootdir=* | --datarootdi=* | --datarootd=* \
+  | --dataroot=* | --dataroo=* | --dataro=* | --datar=*)
+    datarootdir=$ac_optarg ;;
+
+  -disable-* | --disable-*)
+    ac_useropt=`expr "x$ac_option" : 'x-*disable-\(.*\)'`
+    # Reject names that are not valid shell variable names.
+    expr "x$ac_useropt" : ".*[^-+._$as_cr_alnum]" >/dev/null &&
+      as_fn_error $? "invalid feature name: $ac_useropt"
+    ac_useropt_orig=$ac_useropt
+    ac_useropt=`$as_echo "$ac_useropt" | sed 's/[-+.]/_/g'`
+    case $ac_user_opts in
+      *"
+"enable_$ac_useropt"
+"*) ;;
+      *) ac_unrecognized_opts="$ac_unrecognized_opts$ac_unrecognized_sep--disable-$ac_useropt_orig"
+	 ac_unrecognized_sep=', ';;
+    esac
+    eval enable_$ac_useropt=no ;;
+
+  -docdir | --docdir | --docdi | --doc | --do)
+    ac_prev=docdir ;;
+  -docdir=* | --docdir=* | --docdi=* | --doc=* | --do=*)
+    docdir=$ac_optarg ;;
+
+  -dvidir | --dvidir | --dvidi | --dvid | --dvi | --dv)
+    ac_prev=dvidir ;;
+  -dvidir=* | --dvidir=* | --dvidi=* | --dvid=* | --dvi=* | --dv=*)
+    dvidir=$ac_optarg ;;
+
+  -enable-* | --enable-*)
+    ac_useropt=`expr "x$ac_option" : 'x-*enable-\([^=]*\)'`
+    # Reject names that are not valid shell variable names.
+    expr "x$ac_useropt" : ".*[^-+._$as_cr_alnum]" >/dev/null &&
+      as_fn_error $? "invalid feature name: $ac_useropt"
+    ac_useropt_orig=$ac_useropt
+    ac_useropt=`$as_echo "$ac_useropt" | sed 's/[-+.]/_/g'`
+    case $ac_user_opts in
+      *"
+"enable_$ac_useropt"
+"*) ;;
+      *) ac_unrecognized_opts="$ac_unrecognized_opts$ac_unrecognized_sep--enable-$ac_useropt_orig"
+	 ac_unrecognized_sep=', ';;
+    esac
+    eval enable_$ac_useropt=\$ac_optarg ;;
+
+  -exec-prefix | --exec_prefix | --exec-prefix | --exec-prefi \
+  | --exec-pref | --exec-pre | --exec-pr | --exec-p | --exec- \
+  | --exec | --exe | --ex)
+    ac_prev=exec_prefix ;;
+  -exec-prefix=* | --exec_prefix=* | --exec-prefix=* | --exec-prefi=* \
+  | --exec-pref=* | --exec-pre=* | --exec-pr=* | --exec-p=* | --exec-=* \
+  | --exec=* | --exe=* | --ex=*)
+    exec_prefix=$ac_optarg ;;
+
+  -gas | --gas | --ga | --g)
+    # Obsolete; use --with-gas.
+    with_gas=yes ;;
+
+  -help | --help | --hel | --he | -h)
+    ac_init_help=long ;;
+  -help=r* | --help=r* | --hel=r* | --he=r* | -hr*)
+    ac_init_help=recursive ;;
+  -help=s* | --help=s* | --hel=s* | --he=s* | -hs*)
+    ac_init_help=short ;;
+
+  -host | --host | --hos | --ho)
+    ac_prev=host_alias ;;
+  -host=* | --host=* | --hos=* | --ho=*)
+    host_alias=$ac_optarg ;;
+
+  -htmldir | --htmldir | --htmldi | --htmld | --html | --htm | --ht)
+    ac_prev=htmldir ;;
+  -htmldir=* | --htmldir=* | --htmldi=* | --htmld=* | --html=* | --htm=* \
+  | --ht=*)
+    htmldir=$ac_optarg ;;
+
+  -includedir | --includedir | --includedi | --included | --include \
+  | --includ | --inclu | --incl | --inc)
+    ac_prev=includedir ;;
+  -includedir=* | --includedir=* | --includedi=* | --included=* | --include=* \
+  | --includ=* | --inclu=* | --incl=* | --inc=*)
+    includedir=$ac_optarg ;;
+
+  -infodir | --infodir | --infodi | --infod | --info | --inf)
+    ac_prev=infodir ;;
+  -infodir=* | --infodir=* | --infodi=* | --infod=* | --info=* | --inf=*)
+    infodir=$ac_optarg ;;
+
+  -libdir | --libdir | --libdi | --libd)
+    ac_prev=libdir ;;
+  -libdir=* | --libdir=* | --libdi=* | --libd=*)
+    libdir=$ac_optarg ;;
+
+  -libexecdir | --libexecdir | --libexecdi | --libexecd | --libexec \
+  | --libexe | --libex | --libe)
+    ac_prev=libexecdir ;;
+  -libexecdir=* | --libexecdir=* | --libexecdi=* | --libexecd=* | --libexec=* \
+  | --libexe=* | --libex=* | --libe=*)
+    libexecdir=$ac_optarg ;;
+
+  -localedir | --localedir | --localedi | --localed | --locale)
+    ac_prev=localedir ;;
+  -localedir=* | --localedir=* | --localedi=* | --localed=* | --locale=*)
+    localedir=$ac_optarg ;;
+
+  -localstatedir | --localstatedir | --localstatedi | --localstated \
+  | --localstate | --localstat | --localsta | --localst | --locals)
+    ac_prev=localstatedir ;;
+  -localstatedir=* | --localstatedir=* | --localstatedi=* | --localstated=* \
+  | --localstate=* | --localstat=* | --localsta=* | --localst=* | --locals=*)
+    localstatedir=$ac_optarg ;;
+
+  -mandir | --mandir | --mandi | --mand | --man | --ma | --m)
+    ac_prev=mandir ;;
+  -mandir=* | --mandir=* | --mandi=* | --mand=* | --man=* | --ma=* | --m=*)
+    mandir=$ac_optarg ;;
+
+  -nfp | --nfp | --nf)
+    # Obsolete; use --without-fp.
+    with_fp=no ;;
+
+  -no-create | --no-create | --no-creat | --no-crea | --no-cre \
+  | --no-cr | --no-c | -n)
+    no_create=yes ;;
+
+  -no-recursion | --no-recursion | --no-recursio | --no-recursi \
+  | --no-recurs | --no-recur | --no-recu | --no-rec | --no-re | --no-r)
+    no_recursion=yes ;;
+
+  -oldincludedir | --oldincludedir | --oldincludedi | --oldincluded \
+  | --oldinclude | --oldinclud | --oldinclu | --oldincl | --oldinc \
+  | --oldin | --oldi | --old | --ol | --o)
+    ac_prev=oldincludedir ;;
+  -oldincludedir=* | --oldincludedir=* | --oldincludedi=* | --oldincluded=* \
+  | --oldinclude=* | --oldinclud=* | --oldinclu=* | --oldincl=* | --oldinc=* \
+  | --oldin=* | --oldi=* | --old=* | --ol=* | --o=*)
+    oldincludedir=$ac_optarg ;;
+
+  -prefix | --prefix | --prefi | --pref | --pre | --pr | --p)
+    ac_prev=prefix ;;
+  -prefix=* | --prefix=* | --prefi=* | --pref=* | --pre=* | --pr=* | --p=*)
+    prefix=$ac_optarg ;;
+
+  -program-prefix | --program-prefix | --program-prefi | --program-pref \
+  | --program-pre | --program-pr | --program-p)
+    ac_prev=program_prefix ;;
+  -program-prefix=* | --program-prefix=* | --program-prefi=* \
+  | --program-pref=* | --program-pre=* | --program-pr=* | --program-p=*)
+    program_prefix=$ac_optarg ;;
+
+  -program-suffix | --program-suffix | --program-suffi | --program-suff \
+  | --program-suf | --program-su | --program-s)
+    ac_prev=program_suffix ;;
+  -program-suffix=* | --program-suffix=* | --program-suffi=* \
+  | --program-suff=* | --program-suf=* | --program-su=* | --program-s=*)
+    program_suffix=$ac_optarg ;;
+
+  -program-transform-name | --program-transform-name \
+  | --program-transform-nam | --program-transform-na \
+  | --program-transform-n | --program-transform- \
+  | --program-transform | --program-transfor \
+  | --program-transfo | --program-transf \
+  | --program-trans | --program-tran \
+  | --progr-tra | --program-tr | --program-t)
+    ac_prev=program_transform_name ;;
+  -program-transform-name=* | --program-transform-name=* \
+  | --program-transform-nam=* | --program-transform-na=* \
+  | --program-transform-n=* | --program-transform-=* \
+  | --program-transform=* | --program-transfor=* \
+  | --program-transfo=* | --program-transf=* \
+  | --program-trans=* | --program-tran=* \
+  | --progr-tra=* | --program-tr=* | --program-t=*)
+    program_transform_name=$ac_optarg ;;
+
+  -pdfdir | --pdfdir | --pdfdi | --pdfd | --pdf | --pd)
+    ac_prev=pdfdir ;;
+  -pdfdir=* | --pdfdir=* | --pdfdi=* | --pdfd=* | --pdf=* | --pd=*)
+    pdfdir=$ac_optarg ;;
+
+  -psdir | --psdir | --psdi | --psd | --ps)
+    ac_prev=psdir ;;
+  -psdir=* | --psdir=* | --psdi=* | --psd=* | --ps=*)
+    psdir=$ac_optarg ;;
+
+  -q | -quiet | --quiet | --quie | --qui | --qu | --q \
+  | -silent | --silent | --silen | --sile | --sil)
+    silent=yes ;;
+
+  -sbindir | --sbindir | --sbindi | --sbind | --sbin | --sbi | --sb)
+    ac_prev=sbindir ;;
+  -sbindir=* | --sbindir=* | --sbindi=* | --sbind=* | --sbin=* \
+  | --sbi=* | --sb=*)
+    sbindir=$ac_optarg ;;
+
+  -sharedstatedir | --sharedstatedir | --sharedstatedi \
+  | --sharedstated | --sharedstate | --sharedstat | --sharedsta \
+  | --sharedst | --shareds | --shared | --share | --shar \
+  | --sha | --sh)
+    ac_prev=sharedstatedir ;;
+  -sharedstatedir=* | --sharedstatedir=* | --sharedstatedi=* \
+  | --sharedstated=* | --sharedstate=* | --sharedstat=* | --sharedsta=* \
+  | --sharedst=* | --shareds=* | --shared=* | --share=* | --shar=* \
+  | --sha=* | --sh=*)
+    sharedstatedir=$ac_optarg ;;
+
+  -site | --site | --sit)
+    ac_prev=site ;;
+  -site=* | --site=* | --sit=*)
+    site=$ac_optarg ;;
+
+  -srcdir | --srcdir | --srcdi | --srcd | --src | --sr)
+    ac_prev=srcdir ;;
+  -srcdir=* | --srcdir=* | --srcdi=* | --srcd=* | --src=* | --sr=*)
+    srcdir=$ac_optarg ;;
+
+  -sysconfdir | --sysconfdir | --sysconfdi | --sysconfd | --sysconf \
+  | --syscon | --sysco | --sysc | --sys | --sy)
+    ac_prev=sysconfdir ;;
+  -sysconfdir=* | --sysconfdir=* | --sysconfdi=* | --sysconfd=* | --sysconf=* \
+  | --syscon=* | --sysco=* | --sysc=* | --sys=* | --sy=*)
+    sysconfdir=$ac_optarg ;;
+
+  -target | --target | --targe | --targ | --tar | --ta | --t)
+    ac_prev=target_alias ;;
+  -target=* | --target=* | --targe=* | --targ=* | --tar=* | --ta=* | --t=*)
+    target_alias=$ac_optarg ;;
+
+  -v | -verbose | --verbose | --verbos | --verbo | --verb)
+    verbose=yes ;;
+
+  -version | --version | --versio | --versi | --vers | -V)
+    ac_init_version=: ;;
+
+  -with-* | --with-*)
+    ac_useropt=`expr "x$ac_option" : 'x-*with-\([^=]*\)'`
+    # Reject names that are not valid shell variable names.
+    expr "x$ac_useropt" : ".*[^-+._$as_cr_alnum]" >/dev/null &&
+      as_fn_error $? "invalid package name: $ac_useropt"
+    ac_useropt_orig=$ac_useropt
+    ac_useropt=`$as_echo "$ac_useropt" | sed 's/[-+.]/_/g'`
+    case $ac_user_opts in
+      *"
+"with_$ac_useropt"
+"*) ;;
+      *) ac_unrecognized_opts="$ac_unrecognized_opts$ac_unrecognized_sep--with-$ac_useropt_orig"
+	 ac_unrecognized_sep=', ';;
+    esac
+    eval with_$ac_useropt=\$ac_optarg ;;
+
+  -without-* | --without-*)
+    ac_useropt=`expr "x$ac_option" : 'x-*without-\(.*\)'`
+    # Reject names that are not valid shell variable names.
+    expr "x$ac_useropt" : ".*[^-+._$as_cr_alnum]" >/dev/null &&
+      as_fn_error $? "invalid package name: $ac_useropt"
+    ac_useropt_orig=$ac_useropt
+    ac_useropt=`$as_echo "$ac_useropt" | sed 's/[-+.]/_/g'`
+    case $ac_user_opts in
+      *"
+"with_$ac_useropt"
+"*) ;;
+      *) ac_unrecognized_opts="$ac_unrecognized_opts$ac_unrecognized_sep--without-$ac_useropt_orig"
+	 ac_unrecognized_sep=', ';;
+    esac
+    eval with_$ac_useropt=no ;;
+
+  --x)
+    # Obsolete; use --with-x.
+    with_x=yes ;;
+
+  -x-includes | --x-includes | --x-include | --x-includ | --x-inclu \
+  | --x-incl | --x-inc | --x-in | --x-i)
+    ac_prev=x_includes ;;
+  -x-includes=* | --x-includes=* | --x-include=* | --x-includ=* | --x-inclu=* \
+  | --x-incl=* | --x-inc=* | --x-in=* | --x-i=*)
+    x_includes=$ac_optarg ;;
+
+  -x-libraries | --x-libraries | --x-librarie | --x-librari \
+  | --x-librar | --x-libra | --x-libr | --x-lib | --x-li | --x-l)
+    ac_prev=x_libraries ;;
+  -x-libraries=* | --x-libraries=* | --x-librarie=* | --x-librari=* \
+  | --x-librar=* | --x-libra=* | --x-libr=* | --x-lib=* | --x-li=* | --x-l=*)
+    x_libraries=$ac_optarg ;;
+
+  -*) as_fn_error $? "unrecognized option: \`$ac_option'
+Try \`$0 --help' for more information"
+    ;;
+
+  *=*)
+    ac_envvar=`expr "x$ac_option" : 'x\([^=]*\)='`
+    # Reject names that are not valid shell variable names.
+    case $ac_envvar in #(
+      '' | [0-9]* | *[!_$as_cr_alnum]* )
+      as_fn_error $? "invalid variable name: \`$ac_envvar'" ;;
+    esac
+    eval $ac_envvar=\$ac_optarg
+    export $ac_envvar ;;
+
+  *)
+    # FIXME: should be removed in autoconf 3.0.
+    $as_echo "$as_me: WARNING: you should use --build, --host, --target" >&2
+    expr "x$ac_option" : ".*[^-._$as_cr_alnum]" >/dev/null &&
+      $as_echo "$as_me: WARNING: invalid host type: $ac_option" >&2
+    : "${build_alias=$ac_option} ${host_alias=$ac_option} ${target_alias=$ac_option}"
+    ;;
+
+  esac
+done
+
+if test -n "$ac_prev"; then
+  ac_option=--`echo $ac_prev | sed 's/_/-/g'`
+  as_fn_error $? "missing argument to $ac_option"
+fi
+
+if test -n "$ac_unrecognized_opts"; then
+  case $enable_option_checking in
+    no) ;;
+    fatal) as_fn_error $? "unrecognized options: $ac_unrecognized_opts" ;;
+    *)     $as_echo "$as_me: WARNING: unrecognized options: $ac_unrecognized_opts" >&2 ;;
+  esac
+fi
+
+# Check all directory arguments for consistency.
+for ac_var in	exec_prefix prefix bindir sbindir libexecdir datarootdir \
+		datadir sysconfdir sharedstatedir localstatedir includedir \
+		oldincludedir docdir infodir htmldir dvidir pdfdir psdir \
+		libdir localedir mandir
+do
+  eval ac_val=\$$ac_var
+  # Remove trailing slashes.
+  case $ac_val in
+    */ )
+      ac_val=`expr "X$ac_val" : 'X\(.*[^/]\)' \| "X$ac_val" : 'X\(.*\)'`
+      eval $ac_var=\$ac_val;;
+  esac
+  # Be sure to have absolute directory names.
+  case $ac_val in
+    [\\/$]* | ?:[\\/]* )  continue;;
+    NONE | '' ) case $ac_var in *prefix ) continue;; esac;;
+  esac
+  as_fn_error $? "expected an absolute directory name for --$ac_var: $ac_val"
+done
+
+# There might be people who depend on the old broken behavior: `$host'
+# used to hold the argument of --host etc.
+# FIXME: To remove some day.
+build=$build_alias
+host=$host_alias
+target=$target_alias
+
+# FIXME: To remove some day.
+if test "x$host_alias" != x; then
+  if test "x$build_alias" = x; then
+    cross_compiling=maybe
+  elif test "x$build_alias" != "x$host_alias"; then
+    cross_compiling=yes
+  fi
+fi
+
+ac_tool_prefix=
+test -n "$host_alias" && ac_tool_prefix=$host_alias-
+
+test "$silent" = yes && exec 6>/dev/null
+
+
+ac_pwd=`pwd` && test -n "$ac_pwd" &&
+ac_ls_di=`ls -di .` &&
+ac_pwd_ls_di=`cd "$ac_pwd" && ls -di .` ||
+  as_fn_error $? "working directory cannot be determined"
+test "X$ac_ls_di" = "X$ac_pwd_ls_di" ||
+  as_fn_error $? "pwd does not report name of working directory"
+
+
+# Find the source files, if location was not specified.
+if test -z "$srcdir"; then
+  ac_srcdir_defaulted=yes
+  # Try the directory containing this script, then the parent directory.
+  ac_confdir=`$as_dirname -- "$as_myself" ||
+$as_expr X"$as_myself" : 'X\(.*[^/]\)//*[^/][^/]*/*$' \| \
+	 X"$as_myself" : 'X\(//\)[^/]' \| \
+	 X"$as_myself" : 'X\(//\)$' \| \
+	 X"$as_myself" : 'X\(/\)' \| . 2>/dev/null ||
+$as_echo X"$as_myself" |
+    sed '/^X\(.*[^/]\)\/\/*[^/][^/]*\/*$/{
+	    s//\1/
+	    q
+	  }
+	  /^X\(\/\/\)[^/].*/{
+	    s//\1/
+	    q
+	  }
+	  /^X\(\/\/\)$/{
+	    s//\1/
+	    q
+	  }
+	  /^X\(\/\).*/{
+	    s//\1/
+	    q
+	  }
+	  s/.*/./; q'`
+  srcdir=$ac_confdir
+  if test ! -r "$srcdir/$ac_unique_file"; then
+    srcdir=..
+  fi
+else
+  ac_srcdir_defaulted=no
+fi
+if test ! -r "$srcdir/$ac_unique_file"; then
+  test "$ac_srcdir_defaulted" = yes && srcdir="$ac_confdir or .."
+  as_fn_error $? "cannot find sources ($ac_unique_file) in $srcdir"
+fi
+ac_msg="sources are in $srcdir, but \`cd $srcdir' does not work"
+ac_abs_confdir=`(
+	cd "$srcdir" && test -r "./$ac_unique_file" || as_fn_error $? "$ac_msg"
+	pwd)`
+# When building in place, set srcdir=.
+if test "$ac_abs_confdir" = "$ac_pwd"; then
+  srcdir=.
+fi
+# Remove unnecessary trailing slashes from srcdir.
+# Double slashes in file names in object file debugging info
+# mess up M-x gdb in Emacs.
+case $srcdir in
+*/) srcdir=`expr "X$srcdir" : 'X\(.*[^/]\)' \| "X$srcdir" : 'X\(.*\)'`;;
+esac
+for ac_var in $ac_precious_vars; do
+  eval ac_env_${ac_var}_set=\${${ac_var}+set}
+  eval ac_env_${ac_var}_value=\$${ac_var}
+  eval ac_cv_env_${ac_var}_set=\${${ac_var}+set}
+  eval ac_cv_env_${ac_var}_value=\$${ac_var}
+done
+
+#
+# Report the --help message.
+#
+if test "$ac_init_help" = "long"; then
+  # Omit some internal or obsolete options to make the list less imposing.
+  # This message is too long to be a string in the A/UX 3.1 sh.
+  cat <<_ACEOF
+\`configure' configures OpenVPN 2.5_beta3 to adapt to many kinds of systems.
+
+Usage: $0 [OPTION]... [VAR=VALUE]...
+
+To assign environment variables (e.g., CC, CFLAGS...), specify them as
+VAR=VALUE.  See below for descriptions of some of the useful variables.
+
+Defaults for the options are specified in brackets.
+
+Configuration:
+  -h, --help              display this help and exit
+      --help=short        display options specific to this package
+      --help=recursive    display the short help of all the included packages
+  -V, --version           display version information and exit
+  -q, --quiet, --silent   do not print \`checking ...' messages
+      --cache-file=FILE   cache test results in FILE [disabled]
+  -C, --config-cache      alias for \`--cache-file=config.cache'
+  -n, --no-create         do not create output files
+      --srcdir=DIR        find the sources in DIR [configure dir or \`..']
+
+Installation directories:
+  --prefix=PREFIX         install architecture-independent files in PREFIX
+                          [$ac_default_prefix]
+  --exec-prefix=EPREFIX   install architecture-dependent files in EPREFIX
+                          [PREFIX]
+
+By default, \`make install' will install all the files in
+\`$ac_default_prefix/bin', \`$ac_default_prefix/lib' etc.  You can specify
+an installation prefix other than \`$ac_default_prefix' using \`--prefix',
+for instance \`--prefix=\$HOME'.
+
+For better control, use the options below.
+
+Fine tuning of the installation directories:
+  --bindir=DIR            user executables [EPREFIX/bin]
+  --sbindir=DIR           system admin executables [EPREFIX/sbin]
+  --libexecdir=DIR        program executables [EPREFIX/libexec]
+  --sysconfdir=DIR        read-only single-machine data [PREFIX/etc]
+  --sharedstatedir=DIR    modifiable architecture-independent data [PREFIX/com]
+  --localstatedir=DIR     modifiable single-machine data [PREFIX/var]
+  --libdir=DIR            object code libraries [EPREFIX/lib]
+  --includedir=DIR        C header files [PREFIX/include]
+  --oldincludedir=DIR     C header files for non-gcc [/usr/include]
+  --datarootdir=DIR       read-only arch.-independent data root [PREFIX/share]
+  --datadir=DIR           read-only architecture-independent data [DATAROOTDIR]
+  --infodir=DIR           info documentation [DATAROOTDIR/info]
+  --localedir=DIR         locale-dependent data [DATAROOTDIR/locale]
+  --mandir=DIR            man documentation [DATAROOTDIR/man]
+  --docdir=DIR            documentation root [DATAROOTDIR/doc/openvpn]
+  --htmldir=DIR           html documentation [DOCDIR]
+  --dvidir=DIR            dvi documentation [DOCDIR]
+  --pdfdir=DIR            pdf documentation [DOCDIR]
+  --psdir=DIR             ps documentation [DOCDIR]
+_ACEOF
+
+  cat <<\_ACEOF
+
+Program names:
+  --program-prefix=PREFIX            prepend PREFIX to installed program names
+  --program-suffix=SUFFIX            append SUFFIX to installed program names
+  --program-transform-name=PROGRAM   run sed PROGRAM on installed program names
+
+System types:
+  --build=BUILD     configure for building on BUILD [guessed]
+  --host=HOST       cross-compile to build programs to run on HOST [BUILD]
+_ACEOF
+fi
+
+if test -n "$ac_init_help"; then
+  case $ac_init_help in
+     short | recursive ) echo "Configuration of OpenVPN 2.5_beta3:";;
+   esac
+  cat <<\_ACEOF
+
+Optional Features:
+  --disable-option-checking  ignore unrecognized --enable/--with options
+  --disable-FEATURE       do not include FEATURE (same as --enable-FEATURE=no)
+  --enable-FEATURE[=ARG]  include FEATURE [ARG=yes]
+  --enable-silent-rules   less verbose build output (undo: "make V=1")
+  --disable-silent-rules  verbose build output (undo: "make V=0")
+  --enable-dependency-tracking
+                          do not reject slow dependency extractors
+  --disable-dependency-tracking
+                          speeds up one-time build
+  --disable-lzo           disable LZO compression support [default=yes]
+  --disable-lz4           Disable LZ4 compression support
+  --enable-comp-stub      Don't compile compression support but still allow limited interoperability with compression-enabled peers
+  --disable-ofb-cfb       disable support for OFB and CFB cipher modes
+                          [default=yes]
+  --enable-x509-alt-username
+                          enable the --x509-username-field feature
+                          [default=no]
+  --disable-plugins       disable plug-in support [default=yes]
+  --disable-management    disable management server support [default=yes]
+  --enable-pkcs11         enable pkcs11 support [default=no]
+  --disable-fragment      disable internal fragmentation support (--fragment)
+                          [default=yes]
+  --disable-multihome     disable multi-homed UDP server support (--multihome)
+                          [default=yes]
+  --disable-port-share    disable TCP server port-share support (--port-share)
+                          [default=yes]
+  --disable-debug         disable debugging support (disable gremlin and verb
+                          7+ messages) [default=yes]
+  --enable-small          enable smaller executable size (disable OCC, usage
+                          message, and verb 4 parm list) [default=no]
+  --enable-iproute2       enable support for iproute2 [default=no]
+  --disable-def-auth      disable deferred authentication [default=yes]
+  --disable-pf            disable internal packet filter [default=yes]
+  --disable-plugin-auth-pam
+                          disable auth-pam plugin [default=platform specific]
+  --disable-plugin-down-root
+                          disable down-root plugin [default=platform specific]
+  --enable-pam-dlopen     dlopen libpam [default=no]
+  --enable-strict         enable strict compiler warnings (debugging option)
+                          [default=no]
+  --enable-pedantic       enable pedantic compiler warnings, will not generate
+                          a working executable (debugging option) [default=no]
+  --enable-werror         promote compiler warnings to errors, will cause
+                          builds to fail if the compiler issues warnings
+                          (debugging option) [default=no]
+  --enable-strict-options enable strict options check between peers (debugging
+                          option) [default=no]
+  --enable-selinux        enable SELinux support [default=no]
+  --enable-systemd        enable systemd support [default=no]
+  --enable-async-push     enable async-push support for plugins providing
+                          deferred authentication [default=no]
+  --enable-shared[=PKGS]  build shared libraries [default=yes]
+  --enable-static[=PKGS]  build static libraries [default=yes]
+  --enable-fast-install[=PKGS]
+                          optimize for fast installation [default=yes]
+  --disable-libtool-lock  avoid locking (might break parallel builds)
+  --disable-unit-tests    Disables building and running the unit tests suite
+
+Optional Packages:
+  --with-PACKAGE[=ARG]    use PACKAGE [ARG=yes]
+  --without-PACKAGE       do not use PACKAGE (same as --with-PACKAGE=no)
+  --with-special-build=STRING
+                          specify special build string
+  --with-mem-check=TYPE   build with debug memory checking,
+                          TYPE=no|dmalloc|valgrind|ssl [default=no]
+  --with-crypto-library=library
+                          build with the given crypto library,
+                          TYPE=openssl|mbedtls [default=openssl]
+  --with-pic[=PKGS]       try to use only PIC/non-PIC objects [default=use
+                          both]
+  --with-aix-soname=aix|svr4|both
+                          shared library versioning (aka "SONAME") variant to
+                          provide on AIX, [default=aix].
+  --with-gnu-ld           assume the C compiler uses GNU ld [default=no]
+  --with-sysroot[=DIR]    Search for dependent libraries within DIR (or the
+                          compiler's sysroot if not specified).
+
+Some influential environment variables:
+  CC          C compiler command
+  CFLAGS      C compiler flags
+  LDFLAGS     linker flags, e.g. -L<lib dir> if you have libraries in a
+              nonstandard directory <lib dir>
+  LIBS        libraries to pass to the linker, e.g. -l<library>
+  CPPFLAGS    (Objective) C/C++ preprocessor flags, e.g. -I<include dir> if
+              you have headers in a nonstandard directory <include dir>
+  CPP         C preprocessor
+  PLUGINDIR   Path of plug-in directory [default=LIBDIR/openvpn/plugins]
+  PKG_CONFIG  path to pkg-config utility
+  PKG_CONFIG_PATH
+              directories to add to pkg-config's search path
+  PKG_CONFIG_LIBDIR
+              path overriding pkg-config's built-in search path
+  IFCONFIG    full path to ipconfig utility
+  ROUTE       full path to route utility
+  IPROUTE     full path to ip utility
+  NETSTAT     path to netstat utility
+  GIT         path to git utility
+  SYSTEMD_ASK_PASSWORD
+              path to systemd-ask-password utility
+  SYSTEMD_UNIT_DIR
+              Path of systemd unit directory [default=LIBDIR/systemd/system]
+  TMPFILES_DIR
+              Path of tmpfiles directory [default=LIBDIR/tmpfiles.d]
+  RST2MAN     path to rst2man utility
+  RST2HTML    path to rst2html utility
+  LT_SYS_LIBRARY_PATH
+              User-defined run-time library search path.
+  TAP_CFLAGS  C compiler flags for tap
+  LIBPAM_CFLAGS
+              C compiler flags for libpam
+  LIBPAM_LIBS linker flags for libpam
+  PKCS11_HELPER_CFLAGS
+              C compiler flags for PKCS11_HELPER, overriding pkg-config
+  PKCS11_HELPER_LIBS
+              linker flags for PKCS11_HELPER, overriding pkg-config
+  OPENSSL_CFLAGS
+              C compiler flags for OpenSSL
+  OPENSSL_LIBS
+              linker flags for OpenSSL
+  MBEDTLS_CFLAGS
+              C compiler flags for mbedtls
+  MBEDTLS_LIBS
+              linker flags for mbedtls
+  LZO_CFLAGS  C compiler flags for lzo
+  LZO_LIBS    linker flags for lzo
+  LZ4_CFLAGS  C compiler flags for lz4
+  LZ4_LIBS    linker flags for lz4
+  libsystemd_CFLAGS
+              C compiler flags for libsystemd, overriding pkg-config
+  libsystemd_LIBS
+              linker flags for libsystemd, overriding pkg-config
+  P11KIT_CFLAGS
+              C compiler flags for P11KIT, overriding pkg-config
+  P11KIT_LIBS linker flags for P11KIT, overriding pkg-config
+  OPTIONAL_INOTIFY_CFLAGS
+              C compiler flags for OPTIONAL_INOTIFY, overriding pkg-config
+  OPTIONAL_INOTIFY_LIBS
+              linker flags for OPTIONAL_INOTIFY, overriding pkg-config
+  CMOCKA_CFLAGS
+              C compiler flags for CMOCKA, overriding pkg-config
+  CMOCKA_LIBS linker flags for CMOCKA, overriding pkg-config
+
+Use these variables to override the choices made by `configure' or to help
+it to find libraries and programs with nonstandard names/locations.
+
+Report bugs to <openvpn-users@lists.sourceforge.net>.
+_ACEOF
+ac_status=$?
+fi
+
+if test "$ac_init_help" = "recursive"; then
+  # If there are subdirs, report their specific --help.
+  for ac_dir in : $ac_subdirs_all; do test "x$ac_dir" = x: && continue
+    test -d "$ac_dir" ||
+      { cd "$srcdir" && ac_pwd=`pwd` && srcdir=. && test -d "$ac_dir"; } ||
+      continue
+    ac_builddir=.
+
+case "$ac_dir" in
+.) ac_dir_suffix= ac_top_builddir_sub=. ac_top_build_prefix= ;;
+*)
+  ac_dir_suffix=/`$as_echo "$ac_dir" | sed 's|^\.[\\/]||'`
+  # A ".." for each directory in $ac_dir_suffix.
+  ac_top_builddir_sub=`$as_echo "$ac_dir_suffix" | sed 's|/[^\\/]*|/..|g;s|/||'`
+  case $ac_top_builddir_sub in
+  "") ac_top_builddir_sub=. ac_top_build_prefix= ;;
+  *)  ac_top_build_prefix=$ac_top_builddir_sub/ ;;
+  esac ;;
+esac
+ac_abs_top_builddir=$ac_pwd
+ac_abs_builddir=$ac_pwd$ac_dir_suffix
+# for backward compatibility:
+ac_top_builddir=$ac_top_build_prefix
+
+case $srcdir in
+  .)  # We are building in place.
+    ac_srcdir=.
+    ac_top_srcdir=$ac_top_builddir_sub
+    ac_abs_top_srcdir=$ac_pwd ;;
+  [\\/]* | ?:[\\/]* )  # Absolute name.
+    ac_srcdir=$srcdir$ac_dir_suffix;
+    ac_top_srcdir=$srcdir
+    ac_abs_top_srcdir=$srcdir ;;
+  *) # Relative name.
+    ac_srcdir=$ac_top_build_prefix$srcdir$ac_dir_suffix
+    ac_top_srcdir=$ac_top_build_prefix$srcdir
+    ac_abs_top_srcdir=$ac_pwd/$srcdir ;;
+esac
+ac_abs_srcdir=$ac_abs_top_srcdir$ac_dir_suffix
+
+    cd "$ac_dir" || { ac_status=$?; continue; }
+    # Check for guested configure.
+    if test -f "$ac_srcdir/configure.gnu"; then
+      echo &&
+      $SHELL "$ac_srcdir/configure.gnu" --help=recursive
+    elif test -f "$ac_srcdir/configure"; then
+      echo &&
+      $SHELL "$ac_srcdir/configure" --help=recursive
+    else
+      $as_echo "$as_me: WARNING: no configuration information is in $ac_dir" >&2
+    fi || ac_status=$?
+    cd "$ac_pwd" || { ac_status=$?; break; }
+  done
+fi
+
+test -n "$ac_init_help" && exit $ac_status
+if $ac_init_version; then
+  cat <<\_ACEOF
+OpenVPN configure 2.5_beta3
+generated by GNU Autoconf 2.69
+
+Copyright (C) 2012 Free Software Foundation, Inc.
+This configure script is free software; the Free Software Foundation
+gives unlimited permission to copy, distribute and modify it.
+_ACEOF
+  exit
+fi
+
+## ------------------------ ##
+## Autoconf initialization. ##
+## ------------------------ ##
+
+# ac_fn_c_try_compile LINENO
+# --------------------------
+# Try to compile conftest.$ac_ext, and return whether this succeeded.
+ac_fn_c_try_compile ()
+{
+  as_lineno=${as_lineno-"$1"} as_lineno_stack=as_lineno_stack=$as_lineno_stack
+  rm -f conftest.$ac_objext
+  if { { ac_try="$ac_compile"
+case "(($ac_try" in
+  *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
+  *) ac_try_echo=$ac_try;;
+esac
+eval ac_try_echo="\"\$as_me:${as_lineno-$LINENO}: $ac_try_echo\""
+$as_echo "$ac_try_echo"; } >&5
+  (eval "$ac_compile") 2>conftest.err
+  ac_status=$?
+  if test -s conftest.err; then
+    grep -v '^ *+' conftest.err >conftest.er1
+    cat conftest.er1 >&5
+    mv -f conftest.er1 conftest.err
+  fi
+  $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+  test $ac_status = 0; } && {
+	 test -z "$ac_c_werror_flag" ||
+	 test ! -s conftest.err
+       } && test -s conftest.$ac_objext; then :
+  ac_retval=0
+else
+  $as_echo "$as_me: failed program was:" >&5
+sed 's/^/| /' conftest.$ac_ext >&5
+
+	ac_retval=1
+fi
+  eval $as_lineno_stack; ${as_lineno_stack:+:} unset as_lineno
+  as_fn_set_status $ac_retval
+
+} # ac_fn_c_try_compile
+
+# ac_fn_c_try_cpp LINENO
+# ----------------------
+# Try to preprocess conftest.$ac_ext, and return whether this succeeded.
+ac_fn_c_try_cpp ()
+{
+  as_lineno=${as_lineno-"$1"} as_lineno_stack=as_lineno_stack=$as_lineno_stack
+  if { { ac_try="$ac_cpp conftest.$ac_ext"
+case "(($ac_try" in
+  *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
+  *) ac_try_echo=$ac_try;;
+esac
+eval ac_try_echo="\"\$as_me:${as_lineno-$LINENO}: $ac_try_echo\""
+$as_echo "$ac_try_echo"; } >&5
+  (eval "$ac_cpp conftest.$ac_ext") 2>conftest.err
+  ac_status=$?
+  if test -s conftest.err; then
+    grep -v '^ *+' conftest.err >conftest.er1
+    cat conftest.er1 >&5
+    mv -f conftest.er1 conftest.err
+  fi
+  $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+  test $ac_status = 0; } > conftest.i && {
+	 test -z "$ac_c_preproc_warn_flag$ac_c_werror_flag" ||
+	 test ! -s conftest.err
+       }; then :
+  ac_retval=0
+else
+  $as_echo "$as_me: failed program was:" >&5
+sed 's/^/| /' conftest.$ac_ext >&5
+
+    ac_retval=1
+fi
+  eval $as_lineno_stack; ${as_lineno_stack:+:} unset as_lineno
+  as_fn_set_status $ac_retval
+
+} # ac_fn_c_try_cpp
+
+# ac_fn_c_check_header_mongrel LINENO HEADER VAR INCLUDES
+# -------------------------------------------------------
+# Tests whether HEADER exists, giving a warning if it cannot be compiled using
+# the include files in INCLUDES and setting the cache variable VAR
+# accordingly.
+ac_fn_c_check_header_mongrel ()
+{
+  as_lineno=${as_lineno-"$1"} as_lineno_stack=as_lineno_stack=$as_lineno_stack
+  if eval \${$3+:} false; then :
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for $2" >&5
+$as_echo_n "checking for $2... " >&6; }
+if eval \${$3+:} false; then :
+  $as_echo_n "(cached) " >&6
+fi
+eval ac_res=\$$3
+	       { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_res" >&5
+$as_echo "$ac_res" >&6; }
+else
+  # Is the header compilable?
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking $2 usability" >&5
+$as_echo_n "checking $2 usability... " >&6; }
+cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+$4
+#include <$2>
+_ACEOF
+if ac_fn_c_try_compile "$LINENO"; then :
+  ac_header_compiler=yes
+else
+  ac_header_compiler=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_header_compiler" >&5
+$as_echo "$ac_header_compiler" >&6; }
+
+# Is the header present?
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking $2 presence" >&5
+$as_echo_n "checking $2 presence... " >&6; }
+cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <$2>
+_ACEOF
+if ac_fn_c_try_cpp "$LINENO"; then :
+  ac_header_preproc=yes
+else
+  ac_header_preproc=no
+fi
+rm -f conftest.err conftest.i conftest.$ac_ext
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_header_preproc" >&5
+$as_echo "$ac_header_preproc" >&6; }
+
+# So?  What about this header?
+case $ac_header_compiler:$ac_header_preproc:$ac_c_preproc_warn_flag in #((
+  yes:no: )
+    { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: $2: accepted by the compiler, rejected by the preprocessor!" >&5
+$as_echo "$as_me: WARNING: $2: accepted by the compiler, rejected by the preprocessor!" >&2;}
+    { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: $2: proceeding with the compiler's result" >&5
+$as_echo "$as_me: WARNING: $2: proceeding with the compiler's result" >&2;}
+    ;;
+  no:yes:* )
+    { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: $2: present but cannot be compiled" >&5
+$as_echo "$as_me: WARNING: $2: present but cannot be compiled" >&2;}
+    { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: $2:     check for missing prerequisite headers?" >&5
+$as_echo "$as_me: WARNING: $2:     check for missing prerequisite headers?" >&2;}
+    { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: $2: see the Autoconf documentation" >&5
+$as_echo "$as_me: WARNING: $2: see the Autoconf documentation" >&2;}
+    { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: $2:     section \"Present But Cannot Be Compiled\"" >&5
+$as_echo "$as_me: WARNING: $2:     section \"Present But Cannot Be Compiled\"" >&2;}
+    { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: $2: proceeding with the compiler's result" >&5
+$as_echo "$as_me: WARNING: $2: proceeding with the compiler's result" >&2;}
+( $as_echo "## -------------------------------------------------- ##
+## Report this to openvpn-users@lists.sourceforge.net ##
+## -------------------------------------------------- ##"
+     ) | sed "s/^/$as_me: WARNING:     /" >&2
+    ;;
+esac
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for $2" >&5
+$as_echo_n "checking for $2... " >&6; }
+if eval \${$3+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  eval "$3=\$ac_header_compiler"
+fi
+eval ac_res=\$$3
+	       { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_res" >&5
+$as_echo "$ac_res" >&6; }
+fi
+  eval $as_lineno_stack; ${as_lineno_stack:+:} unset as_lineno
+
+} # ac_fn_c_check_header_mongrel
+
+# ac_fn_c_try_run LINENO
+# ----------------------
+# Try to link conftest.$ac_ext, and return whether this succeeded. Assumes
+# that executables *can* be run.
+ac_fn_c_try_run ()
+{
+  as_lineno=${as_lineno-"$1"} as_lineno_stack=as_lineno_stack=$as_lineno_stack
+  if { { ac_try="$ac_link"
+case "(($ac_try" in
+  *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
+  *) ac_try_echo=$ac_try;;
+esac
+eval ac_try_echo="\"\$as_me:${as_lineno-$LINENO}: $ac_try_echo\""
+$as_echo "$ac_try_echo"; } >&5
+  (eval "$ac_link") 2>&5
+  ac_status=$?
+  $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+  test $ac_status = 0; } && { ac_try='./conftest$ac_exeext'
+  { { case "(($ac_try" in
+  *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
+  *) ac_try_echo=$ac_try;;
+esac
+eval ac_try_echo="\"\$as_me:${as_lineno-$LINENO}: $ac_try_echo\""
+$as_echo "$ac_try_echo"; } >&5
+  (eval "$ac_try") 2>&5
+  ac_status=$?
+  $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+  test $ac_status = 0; }; }; then :
+  ac_retval=0
+else
+  $as_echo "$as_me: program exited with status $ac_status" >&5
+       $as_echo "$as_me: failed program was:" >&5
+sed 's/^/| /' conftest.$ac_ext >&5
+
+       ac_retval=$ac_status
+fi
+  rm -rf conftest.dSYM conftest_ipa8_conftest.oo
+  eval $as_lineno_stack; ${as_lineno_stack:+:} unset as_lineno
+  as_fn_set_status $ac_retval
+
+} # ac_fn_c_try_run
+
+# ac_fn_c_check_header_compile LINENO HEADER VAR INCLUDES
+# -------------------------------------------------------
+# Tests whether HEADER exists and can be compiled using the include files in
+# INCLUDES, setting the cache variable VAR accordingly.
+ac_fn_c_check_header_compile ()
+{
+  as_lineno=${as_lineno-"$1"} as_lineno_stack=as_lineno_stack=$as_lineno_stack
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for $2" >&5
+$as_echo_n "checking for $2... " >&6; }
+if eval \${$3+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+$4
+#include <$2>
+_ACEOF
+if ac_fn_c_try_compile "$LINENO"; then :
+  eval "$3=yes"
+else
+  eval "$3=no"
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+fi
+eval ac_res=\$$3
+	       { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_res" >&5
+$as_echo "$ac_res" >&6; }
+  eval $as_lineno_stack; ${as_lineno_stack:+:} unset as_lineno
+
+} # ac_fn_c_check_header_compile
+
+# ac_fn_c_try_link LINENO
+# -----------------------
+# Try to link conftest.$ac_ext, and return whether this succeeded.
+ac_fn_c_try_link ()
+{
+  as_lineno=${as_lineno-"$1"} as_lineno_stack=as_lineno_stack=$as_lineno_stack
+  rm -f conftest.$ac_objext conftest$ac_exeext
+  if { { ac_try="$ac_link"
+case "(($ac_try" in
+  *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
+  *) ac_try_echo=$ac_try;;
+esac
+eval ac_try_echo="\"\$as_me:${as_lineno-$LINENO}: $ac_try_echo\""
+$as_echo "$ac_try_echo"; } >&5
+  (eval "$ac_link") 2>conftest.err
+  ac_status=$?
+  if test -s conftest.err; then
+    grep -v '^ *+' conftest.err >conftest.er1
+    cat conftest.er1 >&5
+    mv -f conftest.er1 conftest.err
+  fi
+  $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+  test $ac_status = 0; } && {
+	 test -z "$ac_c_werror_flag" ||
+	 test ! -s conftest.err
+       } && test -s conftest$ac_exeext && {
+	 test "$cross_compiling" = yes ||
+	 test -x conftest$ac_exeext
+       }; then :
+  ac_retval=0
+else
+  $as_echo "$as_me: failed program was:" >&5
+sed 's/^/| /' conftest.$ac_ext >&5
+
+	ac_retval=1
+fi
+  # Delete the IPA/IPO (Inter Procedural Analysis/Optimization) information
+  # created by the PGI compiler (conftest_ipa8_conftest.oo), as it would
+  # interfere with the next link command; also delete a directory that is
+  # left behind by Apple's compiler.  We do this before executing the actions.
+  rm -rf conftest.dSYM conftest_ipa8_conftest.oo
+  eval $as_lineno_stack; ${as_lineno_stack:+:} unset as_lineno
+  as_fn_set_status $ac_retval
+
+} # ac_fn_c_try_link
+
+# ac_fn_c_check_func LINENO FUNC VAR
+# ----------------------------------
+# Tests whether FUNC exists, setting the cache variable VAR accordingly
+ac_fn_c_check_func ()
+{
+  as_lineno=${as_lineno-"$1"} as_lineno_stack=as_lineno_stack=$as_lineno_stack
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for $2" >&5
+$as_echo_n "checking for $2... " >&6; }
+if eval \${$3+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+/* Define $2 to an innocuous variant, in case <limits.h> declares $2.
+   For example, HP-UX 11i <limits.h> declares gettimeofday.  */
+#define $2 innocuous_$2
+
+/* System header to define __stub macros and hopefully few prototypes,
+    which can conflict with char $2 (); below.
+    Prefer <limits.h> to <assert.h> if __STDC__ is defined, since
+    <limits.h> exists even on freestanding compilers.  */
+
+#ifdef __STDC__
+# include <limits.h>
+#else
+# include <assert.h>
+#endif
+
+#undef $2
+
+/* Override any GCC internal prototype to avoid an error.
+   Use char because int might match the return type of a GCC
+   builtin and then its argument prototype would still apply.  */
+#ifdef __cplusplus
+extern "C"
+#endif
+char $2 ();
+/* The GNU C library defines this for functions which it implements
+    to always fail with ENOSYS.  Some functions are actually named
+    something starting with __ and the normal name is an alias.  */
+#if defined __stub_$2 || defined __stub___$2
+choke me
+#endif
+
+int
+main ()
+{
+return $2 ();
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_c_try_link "$LINENO"; then :
+  eval "$3=yes"
+else
+  eval "$3=no"
+fi
+rm -f core conftest.err conftest.$ac_objext \
+    conftest$ac_exeext conftest.$ac_ext
+fi
+eval ac_res=\$$3
+	       { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_res" >&5
+$as_echo "$ac_res" >&6; }
+  eval $as_lineno_stack; ${as_lineno_stack:+:} unset as_lineno
+
+} # ac_fn_c_check_func
+
+# ac_fn_c_check_type LINENO TYPE VAR INCLUDES
+# -------------------------------------------
+# Tests whether TYPE exists after having included INCLUDES, setting cache
+# variable VAR accordingly.
+ac_fn_c_check_type ()
+{
+  as_lineno=${as_lineno-"$1"} as_lineno_stack=as_lineno_stack=$as_lineno_stack
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for $2" >&5
+$as_echo_n "checking for $2... " >&6; }
+if eval \${$3+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  eval "$3=no"
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+$4
+int
+main ()
+{
+if (sizeof ($2))
+	 return 0;
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_c_try_compile "$LINENO"; then :
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+$4
+int
+main ()
+{
+if (sizeof (($2)))
+	    return 0;
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_c_try_compile "$LINENO"; then :
+
+else
+  eval "$3=yes"
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+fi
+eval ac_res=\$$3
+	       { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_res" >&5
+$as_echo "$ac_res" >&6; }
+  eval $as_lineno_stack; ${as_lineno_stack:+:} unset as_lineno
+
+} # ac_fn_c_check_type
+
+# ac_fn_c_find_intX_t LINENO BITS VAR
+# -----------------------------------
+# Finds a signed integer type with width BITS, setting cache variable VAR
+# accordingly.
+ac_fn_c_find_intX_t ()
+{
+  as_lineno=${as_lineno-"$1"} as_lineno_stack=as_lineno_stack=$as_lineno_stack
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for int$2_t" >&5
+$as_echo_n "checking for int$2_t... " >&6; }
+if eval \${$3+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  eval "$3=no"
+     # Order is important - never check a type that is potentially smaller
+     # than half of the expected target width.
+     for ac_type in int$2_t 'int' 'long int' \
+	 'long long int' 'short int' 'signed char'; do
+       cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+$ac_includes_default
+	     enum { N = $2 / 2 - 1 };
+int
+main ()
+{
+static int test_array [1 - 2 * !(0 < ($ac_type) ((((($ac_type) 1 << N) << N) - 1) * 2 + 1))];
+test_array [0] = 0;
+return test_array [0];
+
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_c_try_compile "$LINENO"; then :
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+$ac_includes_default
+	        enum { N = $2 / 2 - 1 };
+int
+main ()
+{
+static int test_array [1 - 2 * !(($ac_type) ((((($ac_type) 1 << N) << N) - 1) * 2 + 1)
+		 < ($ac_type) ((((($ac_type) 1 << N) << N) - 1) * 2 + 2))];
+test_array [0] = 0;
+return test_array [0];
+
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_c_try_compile "$LINENO"; then :
+
+else
+  case $ac_type in #(
+  int$2_t) :
+    eval "$3=yes" ;; #(
+  *) :
+    eval "$3=\$ac_type" ;;
+esac
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+       if eval test \"x\$"$3"\" = x"no"; then :
+
+else
+  break
+fi
+     done
+fi
+eval ac_res=\$$3
+	       { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_res" >&5
+$as_echo "$ac_res" >&6; }
+  eval $as_lineno_stack; ${as_lineno_stack:+:} unset as_lineno
+
+} # ac_fn_c_find_intX_t
+
+# ac_fn_c_find_uintX_t LINENO BITS VAR
+# ------------------------------------
+# Finds an unsigned integer type with width BITS, setting cache variable VAR
+# accordingly.
+ac_fn_c_find_uintX_t ()
+{
+  as_lineno=${as_lineno-"$1"} as_lineno_stack=as_lineno_stack=$as_lineno_stack
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for uint$2_t" >&5
+$as_echo_n "checking for uint$2_t... " >&6; }
+if eval \${$3+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  eval "$3=no"
+     # Order is important - never check a type that is potentially smaller
+     # than half of the expected target width.
+     for ac_type in uint$2_t 'unsigned int' 'unsigned long int' \
+	 'unsigned long long int' 'unsigned short int' 'unsigned char'; do
+       cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+$ac_includes_default
+int
+main ()
+{
+static int test_array [1 - 2 * !((($ac_type) -1 >> ($2 / 2 - 1)) >> ($2 / 2 - 1) == 3)];
+test_array [0] = 0;
+return test_array [0];
+
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_c_try_compile "$LINENO"; then :
+  case $ac_type in #(
+  uint$2_t) :
+    eval "$3=yes" ;; #(
+  *) :
+    eval "$3=\$ac_type" ;;
+esac
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+       if eval test \"x\$"$3"\" = x"no"; then :
+
+else
+  break
+fi
+     done
+fi
+eval ac_res=\$$3
+	       { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_res" >&5
+$as_echo "$ac_res" >&6; }
+  eval $as_lineno_stack; ${as_lineno_stack:+:} unset as_lineno
+
+} # ac_fn_c_find_uintX_t
+
+# ac_fn_c_compute_int LINENO EXPR ax_cv_socklen_t_equiv INCLUDES
+# --------------------------------------------------------------
+# Tries to find the compile-time value of EXPR in a program that includes
+# INCLUDES, setting VAR accordingly. Returns whether the value could be
+# computed
+ac_fn_c_compute_int ()
+{
+  as_lineno=${as_lineno-"$1"} as_lineno_stack=as_lineno_stack=$as_lineno_stack
+  if test "$cross_compiling" = yes; then
+    # Depending upon the size, compute the lo and hi bounds.
+cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+$4
+int
+main ()
+{
+static int test_array [1 - 2 * !(($2) >= 0)];
+test_array [0] = 0;
+return test_array [0];
+
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_c_try_compile "$LINENO"; then :
+  ac_lo=0 ac_mid=0
+  while :; do
+    cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+$4
+int
+main ()
+{
+static int test_array [1 - 2 * !(($2) <= $ac_mid)];
+test_array [0] = 0;
+return test_array [0];
+
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_c_try_compile "$LINENO"; then :
+  ac_hi=$ac_mid; break
+else
+  as_fn_arith $ac_mid + 1 && ac_lo=$as_val
+			if test $ac_lo -le $ac_mid; then
+			  ac_lo= ac_hi=
+			  break
+			fi
+			as_fn_arith 2 '*' $ac_mid + 1 && ac_mid=$as_val
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+  done
+else
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+$4
+int
+main ()
+{
+static int test_array [1 - 2 * !(($2) < 0)];
+test_array [0] = 0;
+return test_array [0];
+
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_c_try_compile "$LINENO"; then :
+  ac_hi=-1 ac_mid=-1
+  while :; do
+    cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+$4
+int
+main ()
+{
+static int test_array [1 - 2 * !(($2) >= $ac_mid)];
+test_array [0] = 0;
+return test_array [0];
+
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_c_try_compile "$LINENO"; then :
+  ac_lo=$ac_mid; break
+else
+  as_fn_arith '(' $ac_mid ')' - 1 && ac_hi=$as_val
+			if test $ac_mid -le $ac_hi; then
+			  ac_lo= ac_hi=
+			  break
+			fi
+			as_fn_arith 2 '*' $ac_mid && ac_mid=$as_val
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+  done
+else
+  ac_lo= ac_hi=
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+# Binary search between lo and hi bounds.
+while test "x$ac_lo" != "x$ac_hi"; do
+  as_fn_arith '(' $ac_hi - $ac_lo ')' / 2 + $ac_lo && ac_mid=$as_val
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+$4
+int
+main ()
+{
+static int test_array [1 - 2 * !(($2) <= $ac_mid)];
+test_array [0] = 0;
+return test_array [0];
+
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_c_try_compile "$LINENO"; then :
+  ac_hi=$ac_mid
+else
+  as_fn_arith '(' $ac_mid ')' + 1 && ac_lo=$as_val
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+done
+case $ac_lo in #((
+?*) eval "$3=\$ac_lo"; ac_retval=0 ;;
+'') ac_retval=1 ;;
+esac
+  else
+    cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+$4
+static long int longval () { return $2; }
+static unsigned long int ulongval () { return $2; }
+#include <stdio.h>
+#include <stdlib.h>
+int
+main ()
+{
+
+  FILE *f = fopen ("conftest.val", "w");
+  if (! f)
+    return 1;
+  if (($2) < 0)
+    {
+      long int i = longval ();
+      if (i != ($2))
+	return 1;
+      fprintf (f, "%ld", i);
+    }
+  else
+    {
+      unsigned long int i = ulongval ();
+      if (i != ($2))
+	return 1;
+      fprintf (f, "%lu", i);
+    }
+  /* Do not output a trailing newline, as this causes \r\n confusion
+     on some platforms.  */
+  return ferror (f) || fclose (f) != 0;
+
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_c_try_run "$LINENO"; then :
+  echo >>conftest.val; read $3 <conftest.val; ac_retval=0
+else
+  ac_retval=1
+fi
+rm -f core *.core core.conftest.* gmon.out bb.out conftest$ac_exeext \
+  conftest.$ac_objext conftest.beam conftest.$ac_ext
+rm -f conftest.val
+
+  fi
+  eval $as_lineno_stack; ${as_lineno_stack:+:} unset as_lineno
+  as_fn_set_status $ac_retval
+
+} # ac_fn_c_compute_int
+
+# ac_fn_c_check_member LINENO AGGR MEMBER ax_cv_socklen_t_equiv INCLUDES
+# ----------------------------------------------------------------------
+# Tries to find if the field MEMBER exists in type AGGR, after including
+# INCLUDES, setting cache variable VAR accordingly.
+ac_fn_c_check_member ()
+{
+  as_lineno=${as_lineno-"$1"} as_lineno_stack=as_lineno_stack=$as_lineno_stack
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for $2.$3" >&5
+$as_echo_n "checking for $2.$3... " >&6; }
+if eval \${$4+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+$5
+int
+main ()
+{
+static $2 ac_aggr;
+if (ac_aggr.$3)
+return 0;
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_c_try_compile "$LINENO"; then :
+  eval "$4=yes"
+else
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+$5
+int
+main ()
+{
+static $2 ac_aggr;
+if (sizeof ac_aggr.$3)
+return 0;
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_c_try_compile "$LINENO"; then :
+  eval "$4=yes"
+else
+  eval "$4=no"
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+fi
+eval ac_res=\$$4
+	       { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_res" >&5
+$as_echo "$ac_res" >&6; }
+  eval $as_lineno_stack; ${as_lineno_stack:+:} unset as_lineno
+
+} # ac_fn_c_check_member
+
+# ac_fn_c_check_decl LINENO SYMBOL ax_cv_socklen_t_equiv INCLUDES
+# ---------------------------------------------------------------
+# Tests whether SYMBOL is declared in INCLUDES, setting cache variable VAR
+# accordingly.
+ac_fn_c_check_decl ()
+{
+  as_lineno=${as_lineno-"$1"} as_lineno_stack=as_lineno_stack=$as_lineno_stack
+  as_decl_name=`echo $2|sed 's/ *(.*//'`
+  as_decl_use=`echo $2|sed -e 's/(/((/' -e 's/)/) 0&/' -e 's/,/) 0& (/g'`
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether $as_decl_name is declared" >&5
+$as_echo_n "checking whether $as_decl_name is declared... " >&6; }
+if eval \${$3+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+$4
+int
+main ()
+{
+#ifndef $as_decl_name
+#ifdef __cplusplus
+  (void) $as_decl_use;
+#else
+  (void) $as_decl_name;
+#endif
+#endif
+
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_c_try_compile "$LINENO"; then :
+  eval "$3=yes"
+else
+  eval "$3=no"
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+fi
+eval ac_res=\$$3
+	       { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_res" >&5
+$as_echo "$ac_res" >&6; }
+  eval $as_lineno_stack; ${as_lineno_stack:+:} unset as_lineno
+
+} # ac_fn_c_check_decl
+cat >config.log <<_ACEOF
+This file contains any messages produced by compilers while
+running configure, to aid debugging if configure makes a mistake.
+
+It was created by OpenVPN $as_me 2.5_beta3, which was
+generated by GNU Autoconf 2.69.  Invocation command line was
+
+  $ $0 $@
+
+_ACEOF
+exec 5>>config.log
+{
+cat <<_ASUNAME
+## --------- ##
+## Platform. ##
+## --------- ##
+
+hostname = `(hostname || uname -n) 2>/dev/null | sed 1q`
+uname -m = `(uname -m) 2>/dev/null || echo unknown`
+uname -r = `(uname -r) 2>/dev/null || echo unknown`
+uname -s = `(uname -s) 2>/dev/null || echo unknown`
+uname -v = `(uname -v) 2>/dev/null || echo unknown`
+
+/usr/bin/uname -p = `(/usr/bin/uname -p) 2>/dev/null || echo unknown`
+/bin/uname -X     = `(/bin/uname -X) 2>/dev/null     || echo unknown`
+
+/bin/arch              = `(/bin/arch) 2>/dev/null              || echo unknown`
+/usr/bin/arch -k       = `(/usr/bin/arch -k) 2>/dev/null       || echo unknown`
+/usr/convex/getsysinfo = `(/usr/convex/getsysinfo) 2>/dev/null || echo unknown`
+/usr/bin/hostinfo      = `(/usr/bin/hostinfo) 2>/dev/null      || echo unknown`
+/bin/machine           = `(/bin/machine) 2>/dev/null           || echo unknown`
+/usr/bin/oslevel       = `(/usr/bin/oslevel) 2>/dev/null       || echo unknown`
+/bin/universe          = `(/bin/universe) 2>/dev/null          || echo unknown`
+
+_ASUNAME
+
+as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+for as_dir in $PATH
+do
+  IFS=$as_save_IFS
+  test -z "$as_dir" && as_dir=.
+    $as_echo "PATH: $as_dir"
+  done
+IFS=$as_save_IFS
+
+} >&5
+
+cat >&5 <<_ACEOF
+
+
+## ----------- ##
+## Core tests. ##
+## ----------- ##
+
+_ACEOF
+
+
+# Keep a trace of the command line.
+# Strip out --no-create and --no-recursion so they do not pile up.
+# Strip out --silent because we don't want to record it for future runs.
+# Also quote any args containing shell meta-characters.
+# Make two passes to allow for proper duplicate-argument suppression.
+ac_configure_args=
+ac_configure_args0=
+ac_configure_args1=
+ac_must_keep_next=false
+for ac_pass in 1 2
+do
+  for ac_arg
+  do
+    case $ac_arg in
+    -no-create | --no-c* | -n | -no-recursion | --no-r*) continue ;;
+    -q | -quiet | --quiet | --quie | --qui | --qu | --q \
+    | -silent | --silent | --silen | --sile | --sil)
+      continue ;;
+    *\'*)
+      ac_arg=`$as_echo "$ac_arg" | sed "s/'/'\\\\\\\\''/g"` ;;
+    esac
+    case $ac_pass in
+    1) as_fn_append ac_configure_args0 " '$ac_arg'" ;;
+    2)
+      as_fn_append ac_configure_args1 " '$ac_arg'"
+      if test $ac_must_keep_next = true; then
+	ac_must_keep_next=false # Got value, back to normal.
+      else
+	case $ac_arg in
+	  *=* | --config-cache | -C | -disable-* | --disable-* \
+	  | -enable-* | --enable-* | -gas | --g* | -nfp | --nf* \
+	  | -q | -quiet | --q* | -silent | --sil* | -v | -verb* \
+	  | -with-* | --with-* | -without-* | --without-* | --x)
+	    case "$ac_configure_args0 " in
+	      "$ac_configure_args1"*" '$ac_arg' "* ) continue ;;
+	    esac
+	    ;;
+	  -* ) ac_must_keep_next=true ;;
+	esac
+      fi
+      as_fn_append ac_configure_args " '$ac_arg'"
+      ;;
+    esac
+  done
+done
+{ ac_configure_args0=; unset ac_configure_args0;}
+{ ac_configure_args1=; unset ac_configure_args1;}
+
+# When interrupted or exit'd, cleanup temporary files, and complete
+# config.log.  We remove comments because anyway the quotes in there
+# would cause problems or look ugly.
+# WARNING: Use '\'' to represent an apostrophe within the trap.
+# WARNING: Do not start the trap code with a newline, due to a FreeBSD 4.0 bug.
+trap 'exit_status=$?
+  # Save into config.log some information that might help in debugging.
+  {
+    echo
+
+    $as_echo "## ---------------- ##
+## Cache variables. ##
+## ---------------- ##"
+    echo
+    # The following way of writing the cache mishandles newlines in values,
+(
+  for ac_var in `(set) 2>&1 | sed -n '\''s/^\([a-zA-Z_][a-zA-Z0-9_]*\)=.*/\1/p'\''`; do
+    eval ac_val=\$$ac_var
+    case $ac_val in #(
+    *${as_nl}*)
+      case $ac_var in #(
+      *_cv_*) { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: cache variable $ac_var contains a newline" >&5
+$as_echo "$as_me: WARNING: cache variable $ac_var contains a newline" >&2;} ;;
+      esac
+      case $ac_var in #(
+      _ | IFS | as_nl) ;; #(
+      BASH_ARGV | BASH_SOURCE) eval $ac_var= ;; #(
+      *) { eval $ac_var=; unset $ac_var;} ;;
+      esac ;;
+    esac
+  done
+  (set) 2>&1 |
+    case $as_nl`(ac_space='\'' '\''; set) 2>&1` in #(
+    *${as_nl}ac_space=\ *)
+      sed -n \
+	"s/'\''/'\''\\\\'\'''\''/g;
+	  s/^\\([_$as_cr_alnum]*_cv_[_$as_cr_alnum]*\\)=\\(.*\\)/\\1='\''\\2'\''/p"
+      ;; #(
+    *)
+      sed -n "/^[_$as_cr_alnum]*_cv_[_$as_cr_alnum]*=/p"
+      ;;
+    esac |
+    sort
+)
+    echo
+
+    $as_echo "## ----------------- ##
+## Output variables. ##
+## ----------------- ##"
+    echo
+    for ac_var in $ac_subst_vars
+    do
+      eval ac_val=\$$ac_var
+      case $ac_val in
+      *\'\''*) ac_val=`$as_echo "$ac_val" | sed "s/'\''/'\''\\\\\\\\'\'''\''/g"`;;
+      esac
+      $as_echo "$ac_var='\''$ac_val'\''"
+    done | sort
+    echo
+
+    if test -n "$ac_subst_files"; then
+      $as_echo "## ------------------- ##
+## File substitutions. ##
+## ------------------- ##"
+      echo
+      for ac_var in $ac_subst_files
+      do
+	eval ac_val=\$$ac_var
+	case $ac_val in
+	*\'\''*) ac_val=`$as_echo "$ac_val" | sed "s/'\''/'\''\\\\\\\\'\'''\''/g"`;;
+	esac
+	$as_echo "$ac_var='\''$ac_val'\''"
+      done | sort
+      echo
+    fi
+
+    if test -s confdefs.h; then
+      $as_echo "## ----------- ##
+## confdefs.h. ##
+## ----------- ##"
+      echo
+      cat confdefs.h
+      echo
+    fi
+    test "$ac_signal" != 0 &&
+      $as_echo "$as_me: caught signal $ac_signal"
+    $as_echo "$as_me: exit $exit_status"
+  } >&5
+  rm -f core *.core core.conftest.* &&
+    rm -f -r conftest* confdefs* conf$$* $ac_clean_files &&
+    exit $exit_status
+' 0
+for ac_signal in 1 2 13 15; do
+  trap 'ac_signal='$ac_signal'; as_fn_exit 1' $ac_signal
+done
+ac_signal=0
+
+# confdefs.h avoids OS command line length limits that DEFS can exceed.
+rm -f -r conftest* confdefs.h
+
+$as_echo "/* confdefs.h */" > confdefs.h
+
+# Predefined preprocessor variables.
+
+cat >>confdefs.h <<_ACEOF
+#define PACKAGE_NAME "$PACKAGE_NAME"
+_ACEOF
+
+cat >>confdefs.h <<_ACEOF
+#define PACKAGE_TARNAME "$PACKAGE_TARNAME"
+_ACEOF
+
+cat >>confdefs.h <<_ACEOF
+#define PACKAGE_VERSION "$PACKAGE_VERSION"
+_ACEOF
+
+cat >>confdefs.h <<_ACEOF
+#define PACKAGE_STRING "$PACKAGE_STRING"
+_ACEOF
+
+cat >>confdefs.h <<_ACEOF
+#define PACKAGE_BUGREPORT "$PACKAGE_BUGREPORT"
+_ACEOF
+
+cat >>confdefs.h <<_ACEOF
+#define PACKAGE_URL "$PACKAGE_URL"
+_ACEOF
+
+
+# Let the site file select an alternate cache file if it wants to.
+# Prefer an explicitly selected file to automatically selected ones.
+ac_site_file1=NONE
+ac_site_file2=NONE
+if test -n "$CONFIG_SITE"; then
+  # We do not want a PATH search for config.site.
+  case $CONFIG_SITE in #((
+    -*)  ac_site_file1=./$CONFIG_SITE;;
+    */*) ac_site_file1=$CONFIG_SITE;;
+    *)   ac_site_file1=./$CONFIG_SITE;;
+  esac
+elif test "x$prefix" != xNONE; then
+  ac_site_file1=$prefix/share/config.site
+  ac_site_file2=$prefix/etc/config.site
+else
+  ac_site_file1=$ac_default_prefix/share/config.site
+  ac_site_file2=$ac_default_prefix/etc/config.site
+fi
+for ac_site_file in "$ac_site_file1" "$ac_site_file2"
+do
+  test "x$ac_site_file" = xNONE && continue
+  if test /dev/null != "$ac_site_file" && test -r "$ac_site_file"; then
+    { $as_echo "$as_me:${as_lineno-$LINENO}: loading site script $ac_site_file" >&5
+$as_echo "$as_me: loading site script $ac_site_file" >&6;}
+    sed 's/^/| /' "$ac_site_file" >&5
+    . "$ac_site_file" \
+      || { { $as_echo "$as_me:${as_lineno-$LINENO}: error: in \`$ac_pwd':" >&5
+$as_echo "$as_me: error: in \`$ac_pwd':" >&2;}
+as_fn_error $? "failed to load site script $ac_site_file
+See \`config.log' for more details" "$LINENO" 5; }
+  fi
+done
+
+if test -r "$cache_file"; then
+  # Some versions of bash will fail to source /dev/null (special files
+  # actually), so we avoid doing that.  DJGPP emulates it as a regular file.
+  if test /dev/null != "$cache_file" && test -f "$cache_file"; then
+    { $as_echo "$as_me:${as_lineno-$LINENO}: loading cache $cache_file" >&5
+$as_echo "$as_me: loading cache $cache_file" >&6;}
+    case $cache_file in
+      [\\/]* | ?:[\\/]* ) . "$cache_file";;
+      *)                      . "./$cache_file";;
+    esac
+  fi
+else
+  { $as_echo "$as_me:${as_lineno-$LINENO}: creating cache $cache_file" >&5
+$as_echo "$as_me: creating cache $cache_file" >&6;}
+  >$cache_file
+fi
+
+# Check that the precious variables saved in the cache have kept the same
+# value.
+ac_cache_corrupted=false
+for ac_var in $ac_precious_vars; do
+  eval ac_old_set=\$ac_cv_env_${ac_var}_set
+  eval ac_new_set=\$ac_env_${ac_var}_set
+  eval ac_old_val=\$ac_cv_env_${ac_var}_value
+  eval ac_new_val=\$ac_env_${ac_var}_value
+  case $ac_old_set,$ac_new_set in
+    set,)
+      { $as_echo "$as_me:${as_lineno-$LINENO}: error: \`$ac_var' was set to \`$ac_old_val' in the previous run" >&5
+$as_echo "$as_me: error: \`$ac_var' was set to \`$ac_old_val' in the previous run" >&2;}
+      ac_cache_corrupted=: ;;
+    ,set)
+      { $as_echo "$as_me:${as_lineno-$LINENO}: error: \`$ac_var' was not set in the previous run" >&5
+$as_echo "$as_me: error: \`$ac_var' was not set in the previous run" >&2;}
+      ac_cache_corrupted=: ;;
+    ,);;
+    *)
+      if test "x$ac_old_val" != "x$ac_new_val"; then
+	# differences in whitespace do not lead to failure.
+	ac_old_val_w=`echo x $ac_old_val`
+	ac_new_val_w=`echo x $ac_new_val`
+	if test "$ac_old_val_w" != "$ac_new_val_w"; then
+	  { $as_echo "$as_me:${as_lineno-$LINENO}: error: \`$ac_var' has changed since the previous run:" >&5
+$as_echo "$as_me: error: \`$ac_var' has changed since the previous run:" >&2;}
+	  ac_cache_corrupted=:
+	else
+	  { $as_echo "$as_me:${as_lineno-$LINENO}: warning: ignoring whitespace changes in \`$ac_var' since the previous run:" >&5
+$as_echo "$as_me: warning: ignoring whitespace changes in \`$ac_var' since the previous run:" >&2;}
+	  eval $ac_var=\$ac_old_val
+	fi
+	{ $as_echo "$as_me:${as_lineno-$LINENO}:   former value:  \`$ac_old_val'" >&5
+$as_echo "$as_me:   former value:  \`$ac_old_val'" >&2;}
+	{ $as_echo "$as_me:${as_lineno-$LINENO}:   current value: \`$ac_new_val'" >&5
+$as_echo "$as_me:   current value: \`$ac_new_val'" >&2;}
+      fi;;
+  esac
+  # Pass precious variables to config.status.
+  if test "$ac_new_set" = set; then
+    case $ac_new_val in
+    *\'*) ac_arg=$ac_var=`$as_echo "$ac_new_val" | sed "s/'/'\\\\\\\\''/g"` ;;
+    *) ac_arg=$ac_var=$ac_new_val ;;
+    esac
+    case " $ac_configure_args " in
+      *" '$ac_arg' "*) ;; # Avoid dups.  Use of quotes ensures accuracy.
+      *) as_fn_append ac_configure_args " '$ac_arg'" ;;
+    esac
+  fi
+done
+if $ac_cache_corrupted; then
+  { $as_echo "$as_me:${as_lineno-$LINENO}: error: in \`$ac_pwd':" >&5
+$as_echo "$as_me: error: in \`$ac_pwd':" >&2;}
+  { $as_echo "$as_me:${as_lineno-$LINENO}: error: changes in the environment can compromise the build" >&5
+$as_echo "$as_me: error: changes in the environment can compromise the build" >&2;}
+  as_fn_error $? "run \`make distclean' and/or \`rm $cache_file' and start over" "$LINENO" 5
+fi
+## -------------------- ##
+## Main body of script. ##
+## -------------------- ##
+
+ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+
+
+
+
+
+
+
+if test -z "${docdir}"; then
+	docdir="\$(datadir)/doc/\$(PACKAGE_NAME)"
+
+fi
+if test -z "${htmldir}"; then
+	htmldir="\$(docdir)"
+
+fi
+
+
+$as_echo "#define OPENVPN_VERSION_RESOURCE 2,5,0,3" >>confdefs.h
+
+OPENVPN_VERSION_MAJOR=2
+
+OPENVPN_VERSION_MINOR=5
+
+OPENVPN_VERSION_PATCH=_beta3
+
+
+$as_echo "#define OPENVPN_VERSION_MAJOR 2" >>confdefs.h
+
+
+$as_echo "#define OPENVPN_VERSION_MINOR 5" >>confdefs.h
+
+
+$as_echo "#define OPENVPN_VERSION_PATCH \"_beta3\"" >>confdefs.h
+
+
+ac_aux_dir=
+for ac_dir in . "$srcdir"/.; do
+  if test -f "$ac_dir/install-sh"; then
+    ac_aux_dir=$ac_dir
+    ac_install_sh="$ac_aux_dir/install-sh -c"
+    break
+  elif test -f "$ac_dir/install.sh"; then
+    ac_aux_dir=$ac_dir
+    ac_install_sh="$ac_aux_dir/install.sh -c"
+    break
+  elif test -f "$ac_dir/shtool"; then
+    ac_aux_dir=$ac_dir
+    ac_install_sh="$ac_aux_dir/shtool install -c"
+    break
+  fi
+done
+if test -z "$ac_aux_dir"; then
+  as_fn_error $? "cannot find install-sh, install.sh, or shtool in . \"$srcdir\"/." "$LINENO" 5
+fi
+
+# These three variables are undocumented and unsupported,
+# and are intended to be withdrawn in a future Autoconf release.
+# They can cause serious problems if a builder's source tree is in a directory
+# whose full name contains unusual characters.
+ac_config_guess="$SHELL $ac_aux_dir/config.guess"  # Please don't use this var.
+ac_config_sub="$SHELL $ac_aux_dir/config.sub"  # Please don't use this var.
+ac_configure="$SHELL $ac_aux_dir/configure"  # Please don't use this var.
+
+
+ac_config_headers="$ac_config_headers config.h include/openvpn-plugin.h"
+
+
+
+
+
+# This foreign option prevents autoreconf from overriding our COPYING and
+# INSTALL targets:
+am__api_version='1.16'
+
+# Find a good install program.  We prefer a C program (faster),
+# so one script is as good as another.  But avoid the broken or
+# incompatible versions:
+# SysV /etc/install, /usr/sbin/install
+# SunOS /usr/etc/install
+# IRIX /sbin/install
+# AIX /bin/install
+# AmigaOS /C/install, which installs bootblocks on floppy discs
+# AIX 4 /usr/bin/installbsd, which doesn't work without a -g flag
+# AFS /usr/afsws/bin/install, which mishandles nonexistent args
+# SVR4 /usr/ucb/install, which tries to use the nonexistent group "staff"
+# OS/2's system install, which has a completely different semantic
+# ./install, which can be erroneously created by make from ./install.sh.
+# Reject install programs that cannot install multiple files.
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for a BSD-compatible install" >&5
+$as_echo_n "checking for a BSD-compatible install... " >&6; }
+if test -z "$INSTALL"; then
+if ${ac_cv_path_install+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+for as_dir in $PATH
+do
+  IFS=$as_save_IFS
+  test -z "$as_dir" && as_dir=.
+    # Account for people who put trailing slashes in PATH elements.
+case $as_dir/ in #((
+  ./ | .// | /[cC]/* | \
+  /etc/* | /usr/sbin/* | /usr/etc/* | /sbin/* | /usr/afsws/bin/* | \
+  ?:[\\/]os2[\\/]install[\\/]* | ?:[\\/]OS2[\\/]INSTALL[\\/]* | \
+  /usr/ucb/* ) ;;
+  *)
+    # OSF1 and SCO ODT 3.0 have their own names for install.
+    # Don't use installbsd from OSF since it installs stuff as root
+    # by default.
+    for ac_prog in ginstall scoinst install; do
+      for ac_exec_ext in '' $ac_executable_extensions; do
+	if as_fn_executable_p "$as_dir/$ac_prog$ac_exec_ext"; then
+	  if test $ac_prog = install &&
+	    grep dspmsg "$as_dir/$ac_prog$ac_exec_ext" >/dev/null 2>&1; then
+	    # AIX install.  It has an incompatible calling convention.
+	    :
+	  elif test $ac_prog = install &&
+	    grep pwplus "$as_dir/$ac_prog$ac_exec_ext" >/dev/null 2>&1; then
+	    # program-specific install script used by HP pwplus--don't use.
+	    :
+	  else
+	    rm -rf conftest.one conftest.two conftest.dir
+	    echo one > conftest.one
+	    echo two > conftest.two
+	    mkdir conftest.dir
+	    if "$as_dir/$ac_prog$ac_exec_ext" -c conftest.one conftest.two "`pwd`/conftest.dir" &&
+	      test -s conftest.one && test -s conftest.two &&
+	      test -s conftest.dir/conftest.one &&
+	      test -s conftest.dir/conftest.two
+	    then
+	      ac_cv_path_install="$as_dir/$ac_prog$ac_exec_ext -c"
+	      break 3
+	    fi
+	  fi
+	fi
+      done
+    done
+    ;;
+esac
+
+  done
+IFS=$as_save_IFS
+
+rm -rf conftest.one conftest.two conftest.dir
+
+fi
+  if test "${ac_cv_path_install+set}" = set; then
+    INSTALL=$ac_cv_path_install
+  else
+    # As a last resort, use the slow shell script.  Don't cache a
+    # value for INSTALL within a source directory, because that will
+    # break other packages using the cache if that directory is
+    # removed, or if the value is a relative name.
+    INSTALL=$ac_install_sh
+  fi
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $INSTALL" >&5
+$as_echo "$INSTALL" >&6; }
+
+# Use test -z because SunOS4 sh mishandles braces in ${var-val}.
+# It thinks the first close brace ends the variable substitution.
+test -z "$INSTALL_PROGRAM" && INSTALL_PROGRAM='${INSTALL}'
+
+test -z "$INSTALL_SCRIPT" && INSTALL_SCRIPT='${INSTALL}'
+
+test -z "$INSTALL_DATA" && INSTALL_DATA='${INSTALL} -m 644'
+
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking whether build environment is sane" >&5
+$as_echo_n "checking whether build environment is sane... " >&6; }
+# Reject unsafe characters in $srcdir or the absolute working directory
+# name.  Accept space and tab only in the latter.
+am_lf='
+'
+case `pwd` in
+  *[\\\"\#\$\&\'\`$am_lf]*)
+    as_fn_error $? "unsafe absolute working directory name" "$LINENO" 5;;
+esac
+case $srcdir in
+  *[\\\"\#\$\&\'\`$am_lf\ \	]*)
+    as_fn_error $? "unsafe srcdir value: '$srcdir'" "$LINENO" 5;;
+esac
+
+# Do 'set' in a subshell so we don't clobber the current shell's
+# arguments.  Must try -L first in case configure is actually a
+# symlink; some systems play weird games with the mod time of symlinks
+# (eg FreeBSD returns the mod time of the symlink's containing
+# directory).
+if (
+   am_has_slept=no
+   for am_try in 1 2; do
+     echo "timestamp, slept: $am_has_slept" > conftest.file
+     set X `ls -Lt "$srcdir/configure" conftest.file 2> /dev/null`
+     if test "$*" = "X"; then
+	# -L didn't work.
+	set X `ls -t "$srcdir/configure" conftest.file`
+     fi
+     if test "$*" != "X $srcdir/configure conftest.file" \
+	&& test "$*" != "X conftest.file $srcdir/configure"; then
+
+	# If neither matched, then we have a broken ls.  This can happen
+	# if, for instance, CONFIG_SHELL is bash and it inherits a
+	# broken ls alias from the environment.  This has actually
+	# happened.  Such a system could not be considered "sane".
+	as_fn_error $? "ls -t appears to fail.  Make sure there is not a broken
+  alias in your environment" "$LINENO" 5
+     fi
+     if test "$2" = conftest.file || test $am_try -eq 2; then
+       break
+     fi
+     # Just in case.
+     sleep 1
+     am_has_slept=yes
+   done
+   test "$2" = conftest.file
+   )
+then
+   # Ok.
+   :
+else
+   as_fn_error $? "newly created file is older than distributed files!
+Check your system clock" "$LINENO" 5
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+$as_echo "yes" >&6; }
+# If we didn't sleep, we still need to ensure time stamps of config.status and
+# generated files are strictly newer.
+am_sleep_pid=
+if grep 'slept: no' conftest.file >/dev/null 2>&1; then
+  ( sleep 1 ) &
+  am_sleep_pid=$!
+fi
+
+rm -f conftest.file
+
+test "$program_prefix" != NONE &&
+  program_transform_name="s&^&$program_prefix&;$program_transform_name"
+# Use a double $ so make ignores it.
+test "$program_suffix" != NONE &&
+  program_transform_name="s&\$&$program_suffix&;$program_transform_name"
+# Double any \ or $.
+# By default was `s,x,x', remove it if useless.
+ac_script='s/[\\$]/&&/g;s/;s,x,x,$//'
+program_transform_name=`$as_echo "$program_transform_name" | sed "$ac_script"`
+
+# Expand $ac_aux_dir to an absolute path.
+am_aux_dir=`cd "$ac_aux_dir" && pwd`
+
+if test x"${MISSING+set}" != xset; then
+  case $am_aux_dir in
+  *\ * | *\	*)
+    MISSING="\${SHELL} \"$am_aux_dir/missing\"" ;;
+  *)
+    MISSING="\${SHELL} $am_aux_dir/missing" ;;
+  esac
+fi
+# Use eval to expand $SHELL
+if eval "$MISSING --is-lightweight"; then
+  am_missing_run="$MISSING "
+else
+  am_missing_run=
+  { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: 'missing' script is too old or missing" >&5
+$as_echo "$as_me: WARNING: 'missing' script is too old or missing" >&2;}
+fi
+
+if test x"${install_sh+set}" != xset; then
+  case $am_aux_dir in
+  *\ * | *\	*)
+    install_sh="\${SHELL} '$am_aux_dir/install-sh'" ;;
+  *)
+    install_sh="\${SHELL} $am_aux_dir/install-sh"
+  esac
+fi
+
+# Installed binaries are usually stripped using 'strip' when the user
+# run "make install-strip".  However 'strip' might not be the right
+# tool to use in cross-compilation environments, therefore Automake
+# will honor the 'STRIP' environment variable to overrule this program.
+if test "$cross_compiling" != no; then
+  if test -n "$ac_tool_prefix"; then
+  # Extract the first word of "${ac_tool_prefix}strip", so it can be a program name with args.
+set dummy ${ac_tool_prefix}strip; ac_word=$2
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
+$as_echo_n "checking for $ac_word... " >&6; }
+if ${ac_cv_prog_STRIP+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  if test -n "$STRIP"; then
+  ac_cv_prog_STRIP="$STRIP" # Let the user override the test.
+else
+as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+for as_dir in $PATH
+do
+  IFS=$as_save_IFS
+  test -z "$as_dir" && as_dir=.
+    for ac_exec_ext in '' $ac_executable_extensions; do
+  if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
+    ac_cv_prog_STRIP="${ac_tool_prefix}strip"
+    $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
+    break 2
+  fi
+done
+  done
+IFS=$as_save_IFS
+
+fi
+fi
+STRIP=$ac_cv_prog_STRIP
+if test -n "$STRIP"; then
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $STRIP" >&5
+$as_echo "$STRIP" >&6; }
+else
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+fi
+
+
+fi
+if test -z "$ac_cv_prog_STRIP"; then
+  ac_ct_STRIP=$STRIP
+  # Extract the first word of "strip", so it can be a program name with args.
+set dummy strip; ac_word=$2
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
+$as_echo_n "checking for $ac_word... " >&6; }
+if ${ac_cv_prog_ac_ct_STRIP+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  if test -n "$ac_ct_STRIP"; then
+  ac_cv_prog_ac_ct_STRIP="$ac_ct_STRIP" # Let the user override the test.
+else
+as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+for as_dir in $PATH
+do
+  IFS=$as_save_IFS
+  test -z "$as_dir" && as_dir=.
+    for ac_exec_ext in '' $ac_executable_extensions; do
+  if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
+    ac_cv_prog_ac_ct_STRIP="strip"
+    $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
+    break 2
+  fi
+done
+  done
+IFS=$as_save_IFS
+
+fi
+fi
+ac_ct_STRIP=$ac_cv_prog_ac_ct_STRIP
+if test -n "$ac_ct_STRIP"; then
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_ct_STRIP" >&5
+$as_echo "$ac_ct_STRIP" >&6; }
+else
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+fi
+
+  if test "x$ac_ct_STRIP" = x; then
+    STRIP=":"
+  else
+    case $cross_compiling:$ac_tool_warned in
+yes:)
+{ $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: using cross tools not prefixed with host triplet" >&5
+$as_echo "$as_me: WARNING: using cross tools not prefixed with host triplet" >&2;}
+ac_tool_warned=yes ;;
+esac
+    STRIP=$ac_ct_STRIP
+  fi
+else
+  STRIP="$ac_cv_prog_STRIP"
+fi
+
+fi
+INSTALL_STRIP_PROGRAM="\$(install_sh) -c -s"
+
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for a thread-safe mkdir -p" >&5
+$as_echo_n "checking for a thread-safe mkdir -p... " >&6; }
+if test -z "$MKDIR_P"; then
+  if ${ac_cv_path_mkdir+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+for as_dir in $PATH$PATH_SEPARATOR/opt/sfw/bin
+do
+  IFS=$as_save_IFS
+  test -z "$as_dir" && as_dir=.
+    for ac_prog in mkdir gmkdir; do
+	 for ac_exec_ext in '' $ac_executable_extensions; do
+	   as_fn_executable_p "$as_dir/$ac_prog$ac_exec_ext" || continue
+	   case `"$as_dir/$ac_prog$ac_exec_ext" --version 2>&1` in #(
+	     'mkdir (GNU coreutils) '* | \
+	     'mkdir (coreutils) '* | \
+	     'mkdir (fileutils) '4.1*)
+	       ac_cv_path_mkdir=$as_dir/$ac_prog$ac_exec_ext
+	       break 3;;
+	   esac
+	 done
+       done
+  done
+IFS=$as_save_IFS
+
+fi
+
+  test -d ./--version && rmdir ./--version
+  if test "${ac_cv_path_mkdir+set}" = set; then
+    MKDIR_P="$ac_cv_path_mkdir -p"
+  else
+    # As a last resort, use the slow shell script.  Don't cache a
+    # value for MKDIR_P within a source directory, because that will
+    # break other packages using the cache if that directory is
+    # removed, or if the value is a relative name.
+    MKDIR_P="$ac_install_sh -d"
+  fi
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $MKDIR_P" >&5
+$as_echo "$MKDIR_P" >&6; }
+
+for ac_prog in gawk mawk nawk awk
+do
+  # Extract the first word of "$ac_prog", so it can be a program name with args.
+set dummy $ac_prog; ac_word=$2
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
+$as_echo_n "checking for $ac_word... " >&6; }
+if ${ac_cv_prog_AWK+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  if test -n "$AWK"; then
+  ac_cv_prog_AWK="$AWK" # Let the user override the test.
+else
+as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+for as_dir in $PATH
+do
+  IFS=$as_save_IFS
+  test -z "$as_dir" && as_dir=.
+    for ac_exec_ext in '' $ac_executable_extensions; do
+  if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
+    ac_cv_prog_AWK="$ac_prog"
+    $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
+    break 2
+  fi
+done
+  done
+IFS=$as_save_IFS
+
+fi
+fi
+AWK=$ac_cv_prog_AWK
+if test -n "$AWK"; then
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $AWK" >&5
+$as_echo "$AWK" >&6; }
+else
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+fi
+
+
+  test -n "$AWK" && break
+done
+
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking whether ${MAKE-make} sets \$(MAKE)" >&5
+$as_echo_n "checking whether ${MAKE-make} sets \$(MAKE)... " >&6; }
+set x ${MAKE-make}
+ac_make=`$as_echo "$2" | sed 's/+/p/g; s/[^a-zA-Z0-9_]/_/g'`
+if eval \${ac_cv_prog_make_${ac_make}_set+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  cat >conftest.make <<\_ACEOF
+SHELL = /bin/sh
+all:
+	@echo '@@@%%%=$(MAKE)=@@@%%%'
+_ACEOF
+# GNU make sometimes prints "make[1]: Entering ...", which would confuse us.
+case `${MAKE-make} -f conftest.make 2>/dev/null` in
+  *@@@%%%=?*=@@@%%%*)
+    eval ac_cv_prog_make_${ac_make}_set=yes;;
+  *)
+    eval ac_cv_prog_make_${ac_make}_set=no;;
+esac
+rm -f conftest.make
+fi
+if eval test \$ac_cv_prog_make_${ac_make}_set = yes; then
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+$as_echo "yes" >&6; }
+  SET_MAKE=
+else
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+  SET_MAKE="MAKE=${MAKE-make}"
+fi
+
+rm -rf .tst 2>/dev/null
+mkdir .tst 2>/dev/null
+if test -d .tst; then
+  am__leading_dot=.
+else
+  am__leading_dot=_
+fi
+rmdir .tst 2>/dev/null
+
+# Check whether --enable-silent-rules was given.
+if test "${enable_silent_rules+set}" = set; then :
+  enableval=$enable_silent_rules;
+fi
+
+case $enable_silent_rules in # (((
+  yes) AM_DEFAULT_VERBOSITY=0;;
+   no) AM_DEFAULT_VERBOSITY=1;;
+    *) AM_DEFAULT_VERBOSITY=1;;
+esac
+am_make=${MAKE-make}
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking whether $am_make supports nested variables" >&5
+$as_echo_n "checking whether $am_make supports nested variables... " >&6; }
+if ${am_cv_make_support_nested_variables+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  if $as_echo 'TRUE=$(BAR$(V))
+BAR0=false
+BAR1=true
+V=1
+am__doit:
+	@$(TRUE)
+.PHONY: am__doit' | $am_make -f - >/dev/null 2>&1; then
+  am_cv_make_support_nested_variables=yes
+else
+  am_cv_make_support_nested_variables=no
+fi
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $am_cv_make_support_nested_variables" >&5
+$as_echo "$am_cv_make_support_nested_variables" >&6; }
+if test $am_cv_make_support_nested_variables = yes; then
+    AM_V='$(V)'
+  AM_DEFAULT_V='$(AM_DEFAULT_VERBOSITY)'
+else
+  AM_V=$AM_DEFAULT_VERBOSITY
+  AM_DEFAULT_V=$AM_DEFAULT_VERBOSITY
+fi
+AM_BACKSLASH='\'
+
+if test "`cd $srcdir && pwd`" != "`pwd`"; then
+  # Use -I$(srcdir) only when $(srcdir) != ., so that make's output
+  # is not polluted with repeated "-I."
+  am__isrc=' -I$(srcdir)'
+  # test to see if srcdir already configured
+  if test -f $srcdir/config.status; then
+    as_fn_error $? "source directory already configured; run \"make distclean\" there first" "$LINENO" 5
+  fi
+fi
+
+# test whether we have cygpath
+if test -z "$CYGPATH_W"; then
+  if (cygpath --version) >/dev/null 2>/dev/null; then
+    CYGPATH_W='cygpath -w'
+  else
+    CYGPATH_W=echo
+  fi
+fi
+
+
+# Define the identity of the package.
+ PACKAGE='openvpn'
+ VERSION='2.5_beta3'
+
+
+cat >>confdefs.h <<_ACEOF
+#define PACKAGE "$PACKAGE"
+_ACEOF
+
+
+cat >>confdefs.h <<_ACEOF
+#define VERSION "$VERSION"
+_ACEOF
+
+# Some tools Automake needs.
+
+ACLOCAL=${ACLOCAL-"${am_missing_run}aclocal-${am__api_version}"}
+
+
+AUTOCONF=${AUTOCONF-"${am_missing_run}autoconf"}
+
+
+AUTOMAKE=${AUTOMAKE-"${am_missing_run}automake-${am__api_version}"}
+
+
+AUTOHEADER=${AUTOHEADER-"${am_missing_run}autoheader"}
+
+
+MAKEINFO=${MAKEINFO-"${am_missing_run}makeinfo"}
+
+# For better backward compatibility.  To be removed once Automake 1.9.x
+# dies out for good.  For more background, see:
+# <https://lists.gnu.org/archive/html/automake/2012-07/msg00001.html>
+# <https://lists.gnu.org/archive/html/automake/2012-07/msg00014.html>
+mkdir_p='$(MKDIR_P)'
+
+# We need awk for the "check" target (and possibly the TAP driver).  The
+# system "awk" is bad on some platforms.
+# Always define AMTAR for backward compatibility.  Yes, it's still used
+# in the wild :-(  We should find a proper way to deprecate it ...
+AMTAR='$${TAR-tar}'
+
+
+# We'll loop over all known methods to create a tar archive until one works.
+_am_tools='gnutar  pax cpio none'
+
+am__tar='$${TAR-tar} chof - "$$tardir"' am__untar='$${TAR-tar} xf -'
+
+
+
+
+
+
+# POSIX will say in a future version that running "rm -f" with no argument
+# is OK; and we want to be able to make that assumption in our Makefile
+# recipes.  So use an aggressive probe to check that the usage we want is
+# actually supported "in the wild" to an acceptable degree.
+# See automake bug#10828.
+# To make any issue more visible, cause the running configure to be aborted
+# by default if the 'rm' program in use doesn't match our expectations; the
+# user can still override this though.
+if rm -f && rm -fr && rm -rf; then : OK; else
+  cat >&2 <<'END'
+Oops!
+
+Your 'rm' program seems unable to run without file operands specified
+on the command line, even when the '-f' option is present.  This is contrary
+to the behaviour of most rm programs out there, and not conforming with
+the upcoming POSIX standard: <http://austingroupbugs.net/view.php?id=542>
+
+Please tell bug-automake@gnu.org about your system, including the value
+of your $PATH and any error possibly output before this message.  This
+can help us improve future automake versions.
+
+END
+  if test x"$ACCEPT_INFERIOR_RM_PROGRAM" = x"yes"; then
+    echo 'Configuration will proceed anyway, since you have set the' >&2
+    echo 'ACCEPT_INFERIOR_RM_PROGRAM variable to "yes"' >&2
+    echo >&2
+  else
+    cat >&2 <<'END'
+Aborting the configuration process, to ensure you take notice of the issue.
+
+You can download and install GNU coreutils to get an 'rm' implementation
+that behaves properly: <https://www.gnu.org/software/coreutils/>.
+
+If you want to complete the configuration process using your problematic
+'rm' anyway, export the environment variable ACCEPT_INFERIOR_RM_PROGRAM
+to "yes", and re-run configure.
+
+END
+    as_fn_error $? "Your 'rm' program is bad, sorry." "$LINENO" 5
+  fi
+fi
+ # Make sure we can run config.sub.
+$SHELL "$ac_aux_dir/config.sub" sun4 >/dev/null 2>&1 ||
+  as_fn_error $? "cannot run $SHELL $ac_aux_dir/config.sub" "$LINENO" 5
+
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking build system type" >&5
+$as_echo_n "checking build system type... " >&6; }
+if ${ac_cv_build+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  ac_build_alias=$build_alias
+test "x$ac_build_alias" = x &&
+  ac_build_alias=`$SHELL "$ac_aux_dir/config.guess"`
+test "x$ac_build_alias" = x &&
+  as_fn_error $? "cannot guess build type; you must specify one" "$LINENO" 5
+ac_cv_build=`$SHELL "$ac_aux_dir/config.sub" $ac_build_alias` ||
+  as_fn_error $? "$SHELL $ac_aux_dir/config.sub $ac_build_alias failed" "$LINENO" 5
+
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_build" >&5
+$as_echo "$ac_cv_build" >&6; }
+case $ac_cv_build in
+*-*-*) ;;
+*) as_fn_error $? "invalid value of canonical build" "$LINENO" 5;;
+esac
+build=$ac_cv_build
+ac_save_IFS=$IFS; IFS='-'
+set x $ac_cv_build
+shift
+build_cpu=$1
+build_vendor=$2
+shift; shift
+# Remember, the first character of IFS is used to create $*,
+# except with old shells:
+build_os=$*
+IFS=$ac_save_IFS
+case $build_os in *\ *) build_os=`echo "$build_os" | sed 's/ /-/g'`;; esac
+
+
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking host system type" >&5
+$as_echo_n "checking host system type... " >&6; }
+if ${ac_cv_host+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  if test "x$host_alias" = x; then
+  ac_cv_host=$ac_cv_build
+else
+  ac_cv_host=`$SHELL "$ac_aux_dir/config.sub" $host_alias` ||
+    as_fn_error $? "$SHELL $ac_aux_dir/config.sub $host_alias failed" "$LINENO" 5
+fi
+
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_host" >&5
+$as_echo "$ac_cv_host" >&6; }
+case $ac_cv_host in
+*-*-*) ;;
+*) as_fn_error $? "invalid value of canonical host" "$LINENO" 5;;
+esac
+host=$ac_cv_host
+ac_save_IFS=$IFS; IFS='-'
+set x $ac_cv_host
+shift
+host_cpu=$1
+host_vendor=$2
+shift; shift
+# Remember, the first character of IFS is used to create $*,
+# except with old shells:
+host_os=$*
+IFS=$ac_save_IFS
+case $host_os in *\ *) host_os=`echo "$host_os" | sed 's/ /-/g'`;; esac
+
+
+DEPDIR="${am__leading_dot}deps"
+
+ac_config_commands="$ac_config_commands depfiles"
+
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking whether ${MAKE-make} supports the include directive" >&5
+$as_echo_n "checking whether ${MAKE-make} supports the include directive... " >&6; }
+cat > confinc.mk << 'END'
+am__doit:
+	@echo this is the am__doit target >confinc.out
+.PHONY: am__doit
+END
+am__include="#"
+am__quote=
+# BSD make does it like this.
+echo '.include "confinc.mk" # ignored' > confmf.BSD
+# Other make implementations (GNU, Solaris 10, AIX) do it like this.
+echo 'include confinc.mk # ignored' > confmf.GNU
+_am_result=no
+for s in GNU BSD; do
+  { echo "$as_me:$LINENO: ${MAKE-make} -f confmf.$s && cat confinc.out" >&5
+   (${MAKE-make} -f confmf.$s && cat confinc.out) >&5 2>&5
+   ac_status=$?
+   echo "$as_me:$LINENO: \$? = $ac_status" >&5
+   (exit $ac_status); }
+  case $?:`cat confinc.out 2>/dev/null` in #(
+  '0:this is the am__doit target') :
+    case $s in #(
+  BSD) :
+    am__include='.include' am__quote='"' ;; #(
+  *) :
+    am__include='include' am__quote='' ;;
+esac ;; #(
+  *) :
+     ;;
+esac
+  if test "$am__include" != "#"; then
+    _am_result="yes ($s style)"
+    break
+  fi
+done
+rm -f confinc.* confmf.*
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: ${_am_result}" >&5
+$as_echo "${_am_result}" >&6; }
+
+# Check whether --enable-dependency-tracking was given.
+if test "${enable_dependency_tracking+set}" = set; then :
+  enableval=$enable_dependency_tracking;
+fi
+
+if test "x$enable_dependency_tracking" != xno; then
+  am_depcomp="$ac_aux_dir/depcomp"
+  AMDEPBACKSLASH='\'
+  am__nodep='_no'
+fi
+ if test "x$enable_dependency_tracking" != xno; then
+  AMDEP_TRUE=
+  AMDEP_FALSE='#'
+else
+  AMDEP_TRUE='#'
+  AMDEP_FALSE=
+fi
+
+
+ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+if test -n "$ac_tool_prefix"; then
+  # Extract the first word of "${ac_tool_prefix}gcc", so it can be a program name with args.
+set dummy ${ac_tool_prefix}gcc; ac_word=$2
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
+$as_echo_n "checking for $ac_word... " >&6; }
+if ${ac_cv_prog_CC+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  if test -n "$CC"; then
+  ac_cv_prog_CC="$CC" # Let the user override the test.
+else
+as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+for as_dir in $PATH
+do
+  IFS=$as_save_IFS
+  test -z "$as_dir" && as_dir=.
+    for ac_exec_ext in '' $ac_executable_extensions; do
+  if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
+    ac_cv_prog_CC="${ac_tool_prefix}gcc"
+    $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
+    break 2
+  fi
+done
+  done
+IFS=$as_save_IFS
+
+fi
+fi
+CC=$ac_cv_prog_CC
+if test -n "$CC"; then
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $CC" >&5
+$as_echo "$CC" >&6; }
+else
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+fi
+
+
+fi
+if test -z "$ac_cv_prog_CC"; then
+  ac_ct_CC=$CC
+  # Extract the first word of "gcc", so it can be a program name with args.
+set dummy gcc; ac_word=$2
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
+$as_echo_n "checking for $ac_word... " >&6; }
+if ${ac_cv_prog_ac_ct_CC+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  if test -n "$ac_ct_CC"; then
+  ac_cv_prog_ac_ct_CC="$ac_ct_CC" # Let the user override the test.
+else
+as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+for as_dir in $PATH
+do
+  IFS=$as_save_IFS
+  test -z "$as_dir" && as_dir=.
+    for ac_exec_ext in '' $ac_executable_extensions; do
+  if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
+    ac_cv_prog_ac_ct_CC="gcc"
+    $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
+    break 2
+  fi
+done
+  done
+IFS=$as_save_IFS
+
+fi
+fi
+ac_ct_CC=$ac_cv_prog_ac_ct_CC
+if test -n "$ac_ct_CC"; then
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_ct_CC" >&5
+$as_echo "$ac_ct_CC" >&6; }
+else
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+fi
+
+  if test "x$ac_ct_CC" = x; then
+    CC=""
+  else
+    case $cross_compiling:$ac_tool_warned in
+yes:)
+{ $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: using cross tools not prefixed with host triplet" >&5
+$as_echo "$as_me: WARNING: using cross tools not prefixed with host triplet" >&2;}
+ac_tool_warned=yes ;;
+esac
+    CC=$ac_ct_CC
+  fi
+else
+  CC="$ac_cv_prog_CC"
+fi
+
+if test -z "$CC"; then
+          if test -n "$ac_tool_prefix"; then
+    # Extract the first word of "${ac_tool_prefix}cc", so it can be a program name with args.
+set dummy ${ac_tool_prefix}cc; ac_word=$2
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
+$as_echo_n "checking for $ac_word... " >&6; }
+if ${ac_cv_prog_CC+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  if test -n "$CC"; then
+  ac_cv_prog_CC="$CC" # Let the user override the test.
+else
+as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+for as_dir in $PATH
+do
+  IFS=$as_save_IFS
+  test -z "$as_dir" && as_dir=.
+    for ac_exec_ext in '' $ac_executable_extensions; do
+  if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
+    ac_cv_prog_CC="${ac_tool_prefix}cc"
+    $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
+    break 2
+  fi
+done
+  done
+IFS=$as_save_IFS
+
+fi
+fi
+CC=$ac_cv_prog_CC
+if test -n "$CC"; then
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $CC" >&5
+$as_echo "$CC" >&6; }
+else
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+fi
+
+
+  fi
+fi
+if test -z "$CC"; then
+  # Extract the first word of "cc", so it can be a program name with args.
+set dummy cc; ac_word=$2
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
+$as_echo_n "checking for $ac_word... " >&6; }
+if ${ac_cv_prog_CC+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  if test -n "$CC"; then
+  ac_cv_prog_CC="$CC" # Let the user override the test.
+else
+  ac_prog_rejected=no
+as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+for as_dir in $PATH
+do
+  IFS=$as_save_IFS
+  test -z "$as_dir" && as_dir=.
+    for ac_exec_ext in '' $ac_executable_extensions; do
+  if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
+    if test "$as_dir/$ac_word$ac_exec_ext" = "/usr/ucb/cc"; then
+       ac_prog_rejected=yes
+       continue
+     fi
+    ac_cv_prog_CC="cc"
+    $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
+    break 2
+  fi
+done
+  done
+IFS=$as_save_IFS
+
+if test $ac_prog_rejected = yes; then
+  # We found a bogon in the path, so make sure we never use it.
+  set dummy $ac_cv_prog_CC
+  shift
+  if test $# != 0; then
+    # We chose a different compiler from the bogus one.
+    # However, it has the same basename, so the bogon will be chosen
+    # first if we set CC to just the basename; use the full file name.
+    shift
+    ac_cv_prog_CC="$as_dir/$ac_word${1+' '}$@"
+  fi
+fi
+fi
+fi
+CC=$ac_cv_prog_CC
+if test -n "$CC"; then
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $CC" >&5
+$as_echo "$CC" >&6; }
+else
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+fi
+
+
+fi
+if test -z "$CC"; then
+  if test -n "$ac_tool_prefix"; then
+  for ac_prog in cl.exe
+  do
+    # Extract the first word of "$ac_tool_prefix$ac_prog", so it can be a program name with args.
+set dummy $ac_tool_prefix$ac_prog; ac_word=$2
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
+$as_echo_n "checking for $ac_word... " >&6; }
+if ${ac_cv_prog_CC+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  if test -n "$CC"; then
+  ac_cv_prog_CC="$CC" # Let the user override the test.
+else
+as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+for as_dir in $PATH
+do
+  IFS=$as_save_IFS
+  test -z "$as_dir" && as_dir=.
+    for ac_exec_ext in '' $ac_executable_extensions; do
+  if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
+    ac_cv_prog_CC="$ac_tool_prefix$ac_prog"
+    $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
+    break 2
+  fi
+done
+  done
+IFS=$as_save_IFS
+
+fi
+fi
+CC=$ac_cv_prog_CC
+if test -n "$CC"; then
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $CC" >&5
+$as_echo "$CC" >&6; }
+else
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+fi
+
+
+    test -n "$CC" && break
+  done
+fi
+if test -z "$CC"; then
+  ac_ct_CC=$CC
+  for ac_prog in cl.exe
+do
+  # Extract the first word of "$ac_prog", so it can be a program name with args.
+set dummy $ac_prog; ac_word=$2
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
+$as_echo_n "checking for $ac_word... " >&6; }
+if ${ac_cv_prog_ac_ct_CC+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  if test -n "$ac_ct_CC"; then
+  ac_cv_prog_ac_ct_CC="$ac_ct_CC" # Let the user override the test.
+else
+as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+for as_dir in $PATH
+do
+  IFS=$as_save_IFS
+  test -z "$as_dir" && as_dir=.
+    for ac_exec_ext in '' $ac_executable_extensions; do
+  if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
+    ac_cv_prog_ac_ct_CC="$ac_prog"
+    $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
+    break 2
+  fi
+done
+  done
+IFS=$as_save_IFS
+
+fi
+fi
+ac_ct_CC=$ac_cv_prog_ac_ct_CC
+if test -n "$ac_ct_CC"; then
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_ct_CC" >&5
+$as_echo "$ac_ct_CC" >&6; }
+else
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+fi
+
+
+  test -n "$ac_ct_CC" && break
+done
+
+  if test "x$ac_ct_CC" = x; then
+    CC=""
+  else
+    case $cross_compiling:$ac_tool_warned in
+yes:)
+{ $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: using cross tools not prefixed with host triplet" >&5
+$as_echo "$as_me: WARNING: using cross tools not prefixed with host triplet" >&2;}
+ac_tool_warned=yes ;;
+esac
+    CC=$ac_ct_CC
+  fi
+fi
+
+fi
+
+
+test -z "$CC" && { { $as_echo "$as_me:${as_lineno-$LINENO}: error: in \`$ac_pwd':" >&5
+$as_echo "$as_me: error: in \`$ac_pwd':" >&2;}
+as_fn_error $? "no acceptable C compiler found in \$PATH
+See \`config.log' for more details" "$LINENO" 5; }
+
+# Provide some information about the compiler.
+$as_echo "$as_me:${as_lineno-$LINENO}: checking for C compiler version" >&5
+set X $ac_compile
+ac_compiler=$2
+for ac_option in --version -v -V -qversion; do
+  { { ac_try="$ac_compiler $ac_option >&5"
+case "(($ac_try" in
+  *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
+  *) ac_try_echo=$ac_try;;
+esac
+eval ac_try_echo="\"\$as_me:${as_lineno-$LINENO}: $ac_try_echo\""
+$as_echo "$ac_try_echo"; } >&5
+  (eval "$ac_compiler $ac_option >&5") 2>conftest.err
+  ac_status=$?
+  if test -s conftest.err; then
+    sed '10a\
+... rest of stderr output deleted ...
+         10q' conftest.err >conftest.er1
+    cat conftest.er1 >&5
+  fi
+  rm -f conftest.er1 conftest.err
+  $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+  test $ac_status = 0; }
+done
+
+cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+int
+main ()
+{
+
+  ;
+  return 0;
+}
+_ACEOF
+ac_clean_files_save=$ac_clean_files
+ac_clean_files="$ac_clean_files a.out a.out.dSYM a.exe b.out"
+# Try to create an executable without -o first, disregard a.out.
+# It will help us diagnose broken compilers, and finding out an intuition
+# of exeext.
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking whether the C compiler works" >&5
+$as_echo_n "checking whether the C compiler works... " >&6; }
+ac_link_default=`$as_echo "$ac_link" | sed 's/ -o *conftest[^ ]*//'`
+
+# The possible output files:
+ac_files="a.out conftest.exe conftest a.exe a_out.exe b.out conftest.*"
+
+ac_rmfiles=
+for ac_file in $ac_files
+do
+  case $ac_file in
+    *.$ac_ext | *.xcoff | *.tds | *.d | *.pdb | *.xSYM | *.bb | *.bbg | *.map | *.inf | *.dSYM | *.o | *.obj ) ;;
+    * ) ac_rmfiles="$ac_rmfiles $ac_file";;
+  esac
+done
+rm -f $ac_rmfiles
+
+if { { ac_try="$ac_link_default"
+case "(($ac_try" in
+  *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
+  *) ac_try_echo=$ac_try;;
+esac
+eval ac_try_echo="\"\$as_me:${as_lineno-$LINENO}: $ac_try_echo\""
+$as_echo "$ac_try_echo"; } >&5
+  (eval "$ac_link_default") 2>&5
+  ac_status=$?
+  $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+  test $ac_status = 0; }; then :
+  # Autoconf-2.13 could set the ac_cv_exeext variable to `no'.
+# So ignore a value of `no', otherwise this would lead to `EXEEXT = no'
+# in a Makefile.  We should not override ac_cv_exeext if it was cached,
+# so that the user can short-circuit this test for compilers unknown to
+# Autoconf.
+for ac_file in $ac_files ''
+do
+  test -f "$ac_file" || continue
+  case $ac_file in
+    *.$ac_ext | *.xcoff | *.tds | *.d | *.pdb | *.xSYM | *.bb | *.bbg | *.map | *.inf | *.dSYM | *.o | *.obj )
+	;;
+    [ab].out )
+	# We found the default executable, but exeext='' is most
+	# certainly right.
+	break;;
+    *.* )
+	if test "${ac_cv_exeext+set}" = set && test "$ac_cv_exeext" != no;
+	then :; else
+	   ac_cv_exeext=`expr "$ac_file" : '[^.]*\(\..*\)'`
+	fi
+	# We set ac_cv_exeext here because the later test for it is not
+	# safe: cross compilers may not add the suffix if given an `-o'
+	# argument, so we may need to know it at that point already.
+	# Even if this section looks crufty: it has the advantage of
+	# actually working.
+	break;;
+    * )
+	break;;
+  esac
+done
+test "$ac_cv_exeext" = no && ac_cv_exeext=
+
+else
+  ac_file=''
+fi
+if test -z "$ac_file"; then :
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+$as_echo "$as_me: failed program was:" >&5
+sed 's/^/| /' conftest.$ac_ext >&5
+
+{ { $as_echo "$as_me:${as_lineno-$LINENO}: error: in \`$ac_pwd':" >&5
+$as_echo "$as_me: error: in \`$ac_pwd':" >&2;}
+as_fn_error 77 "C compiler cannot create executables
+See \`config.log' for more details" "$LINENO" 5; }
+else
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+$as_echo "yes" >&6; }
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for C compiler default output file name" >&5
+$as_echo_n "checking for C compiler default output file name... " >&6; }
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_file" >&5
+$as_echo "$ac_file" >&6; }
+ac_exeext=$ac_cv_exeext
+
+rm -f -r a.out a.out.dSYM a.exe conftest$ac_cv_exeext b.out
+ac_clean_files=$ac_clean_files_save
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for suffix of executables" >&5
+$as_echo_n "checking for suffix of executables... " >&6; }
+if { { ac_try="$ac_link"
+case "(($ac_try" in
+  *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
+  *) ac_try_echo=$ac_try;;
+esac
+eval ac_try_echo="\"\$as_me:${as_lineno-$LINENO}: $ac_try_echo\""
+$as_echo "$ac_try_echo"; } >&5
+  (eval "$ac_link") 2>&5
+  ac_status=$?
+  $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+  test $ac_status = 0; }; then :
+  # If both `conftest.exe' and `conftest' are `present' (well, observable)
+# catch `conftest.exe'.  For instance with Cygwin, `ls conftest' will
+# work properly (i.e., refer to `conftest.exe'), while it won't with
+# `rm'.
+for ac_file in conftest.exe conftest conftest.*; do
+  test -f "$ac_file" || continue
+  case $ac_file in
+    *.$ac_ext | *.xcoff | *.tds | *.d | *.pdb | *.xSYM | *.bb | *.bbg | *.map | *.inf | *.dSYM | *.o | *.obj ) ;;
+    *.* ) ac_cv_exeext=`expr "$ac_file" : '[^.]*\(\..*\)'`
+	  break;;
+    * ) break;;
+  esac
+done
+else
+  { { $as_echo "$as_me:${as_lineno-$LINENO}: error: in \`$ac_pwd':" >&5
+$as_echo "$as_me: error: in \`$ac_pwd':" >&2;}
+as_fn_error $? "cannot compute suffix of executables: cannot compile and link
+See \`config.log' for more details" "$LINENO" 5; }
+fi
+rm -f conftest conftest$ac_cv_exeext
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_exeext" >&5
+$as_echo "$ac_cv_exeext" >&6; }
+
+rm -f conftest.$ac_ext
+EXEEXT=$ac_cv_exeext
+ac_exeext=$EXEEXT
+cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <stdio.h>
+int
+main ()
+{
+FILE *f = fopen ("conftest.out", "w");
+ return ferror (f) || fclose (f) != 0;
+
+  ;
+  return 0;
+}
+_ACEOF
+ac_clean_files="$ac_clean_files conftest.out"
+# Check that the compiler produces executables we can run.  If not, either
+# the compiler is broken, or we cross compile.
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking whether we are cross compiling" >&5
+$as_echo_n "checking whether we are cross compiling... " >&6; }
+if test "$cross_compiling" != yes; then
+  { { ac_try="$ac_link"
+case "(($ac_try" in
+  *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
+  *) ac_try_echo=$ac_try;;
+esac
+eval ac_try_echo="\"\$as_me:${as_lineno-$LINENO}: $ac_try_echo\""
+$as_echo "$ac_try_echo"; } >&5
+  (eval "$ac_link") 2>&5
+  ac_status=$?
+  $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+  test $ac_status = 0; }
+  if { ac_try='./conftest$ac_cv_exeext'
+  { { case "(($ac_try" in
+  *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
+  *) ac_try_echo=$ac_try;;
+esac
+eval ac_try_echo="\"\$as_me:${as_lineno-$LINENO}: $ac_try_echo\""
+$as_echo "$ac_try_echo"; } >&5
+  (eval "$ac_try") 2>&5
+  ac_status=$?
+  $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+  test $ac_status = 0; }; }; then
+    cross_compiling=no
+  else
+    if test "$cross_compiling" = maybe; then
+	cross_compiling=yes
+    else
+	{ { $as_echo "$as_me:${as_lineno-$LINENO}: error: in \`$ac_pwd':" >&5
+$as_echo "$as_me: error: in \`$ac_pwd':" >&2;}
+as_fn_error $? "cannot run C compiled programs.
+If you meant to cross compile, use \`--host'.
+See \`config.log' for more details" "$LINENO" 5; }
+    fi
+  fi
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $cross_compiling" >&5
+$as_echo "$cross_compiling" >&6; }
+
+rm -f conftest.$ac_ext conftest$ac_cv_exeext conftest.out
+ac_clean_files=$ac_clean_files_save
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for suffix of object files" >&5
+$as_echo_n "checking for suffix of object files... " >&6; }
+if ${ac_cv_objext+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+int
+main ()
+{
+
+  ;
+  return 0;
+}
+_ACEOF
+rm -f conftest.o conftest.obj
+if { { ac_try="$ac_compile"
+case "(($ac_try" in
+  *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
+  *) ac_try_echo=$ac_try;;
+esac
+eval ac_try_echo="\"\$as_me:${as_lineno-$LINENO}: $ac_try_echo\""
+$as_echo "$ac_try_echo"; } >&5
+  (eval "$ac_compile") 2>&5
+  ac_status=$?
+  $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+  test $ac_status = 0; }; then :
+  for ac_file in conftest.o conftest.obj conftest.*; do
+  test -f "$ac_file" || continue;
+  case $ac_file in
+    *.$ac_ext | *.xcoff | *.tds | *.d | *.pdb | *.xSYM | *.bb | *.bbg | *.map | *.inf | *.dSYM ) ;;
+    *) ac_cv_objext=`expr "$ac_file" : '.*\.\(.*\)'`
+       break;;
+  esac
+done
+else
+  $as_echo "$as_me: failed program was:" >&5
+sed 's/^/| /' conftest.$ac_ext >&5
+
+{ { $as_echo "$as_me:${as_lineno-$LINENO}: error: in \`$ac_pwd':" >&5
+$as_echo "$as_me: error: in \`$ac_pwd':" >&2;}
+as_fn_error $? "cannot compute suffix of object files: cannot compile
+See \`config.log' for more details" "$LINENO" 5; }
+fi
+rm -f conftest.$ac_cv_objext conftest.$ac_ext
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_objext" >&5
+$as_echo "$ac_cv_objext" >&6; }
+OBJEXT=$ac_cv_objext
+ac_objext=$OBJEXT
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking whether we are using the GNU C compiler" >&5
+$as_echo_n "checking whether we are using the GNU C compiler... " >&6; }
+if ${ac_cv_c_compiler_gnu+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+int
+main ()
+{
+#ifndef __GNUC__
+       choke me
+#endif
+
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_c_try_compile "$LINENO"; then :
+  ac_compiler_gnu=yes
+else
+  ac_compiler_gnu=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+ac_cv_c_compiler_gnu=$ac_compiler_gnu
+
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_c_compiler_gnu" >&5
+$as_echo "$ac_cv_c_compiler_gnu" >&6; }
+if test $ac_compiler_gnu = yes; then
+  GCC=yes
+else
+  GCC=
+fi
+ac_test_CFLAGS=${CFLAGS+set}
+ac_save_CFLAGS=$CFLAGS
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking whether $CC accepts -g" >&5
+$as_echo_n "checking whether $CC accepts -g... " >&6; }
+if ${ac_cv_prog_cc_g+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  ac_save_c_werror_flag=$ac_c_werror_flag
+   ac_c_werror_flag=yes
+   ac_cv_prog_cc_g=no
+   CFLAGS="-g"
+   cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+int
+main ()
+{
+
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_c_try_compile "$LINENO"; then :
+  ac_cv_prog_cc_g=yes
+else
+  CFLAGS=""
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+int
+main ()
+{
+
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_c_try_compile "$LINENO"; then :
+
+else
+  ac_c_werror_flag=$ac_save_c_werror_flag
+	 CFLAGS="-g"
+	 cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+int
+main ()
+{
+
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_c_try_compile "$LINENO"; then :
+  ac_cv_prog_cc_g=yes
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+   ac_c_werror_flag=$ac_save_c_werror_flag
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_prog_cc_g" >&5
+$as_echo "$ac_cv_prog_cc_g" >&6; }
+if test "$ac_test_CFLAGS" = set; then
+  CFLAGS=$ac_save_CFLAGS
+elif test $ac_cv_prog_cc_g = yes; then
+  if test "$GCC" = yes; then
+    CFLAGS="-g -O2"
+  else
+    CFLAGS="-g"
+  fi
+else
+  if test "$GCC" = yes; then
+    CFLAGS="-O2"
+  else
+    CFLAGS=
+  fi
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $CC option to accept ISO C89" >&5
+$as_echo_n "checking for $CC option to accept ISO C89... " >&6; }
+if ${ac_cv_prog_cc_c89+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  ac_cv_prog_cc_c89=no
+ac_save_CC=$CC
+cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <stdarg.h>
+#include <stdio.h>
+struct stat;
+/* Most of the following tests are stolen from RCS 5.7's src/conf.sh.  */
+struct buf { int x; };
+FILE * (*rcsopen) (struct buf *, struct stat *, int);
+static char *e (p, i)
+     char **p;
+     int i;
+{
+  return p[i];
+}
+static char *f (char * (*g) (char **, int), char **p, ...)
+{
+  char *s;
+  va_list v;
+  va_start (v,p);
+  s = g (p, va_arg (v,int));
+  va_end (v);
+  return s;
+}
+
+/* OSF 4.0 Compaq cc is some sort of almost-ANSI by default.  It has
+   function prototypes and stuff, but not '\xHH' hex character constants.
+   These don't provoke an error unfortunately, instead are silently treated
+   as 'x'.  The following induces an error, until -std is added to get
+   proper ANSI mode.  Curiously '\x00'!='x' always comes out true, for an
+   array size at least.  It's necessary to write '\x00'==0 to get something
+   that's true only with -std.  */
+int osf4_cc_array ['\x00' == 0 ? 1 : -1];
+
+/* IBM C 6 for AIX is almost-ANSI by default, but it replaces macro parameters
+   inside strings and character constants.  */
+#define FOO(x) 'x'
+int xlc6_cc_array[FOO(a) == 'x' ? 1 : -1];
+
+int test (int i, double x);
+struct s1 {int (*f) (int a);};
+struct s2 {int (*f) (double a);};
+int pairnames (int, char **, FILE *(*)(struct buf *, struct stat *, int), int, int);
+int argc;
+char **argv;
+int
+main ()
+{
+return f (e, argv, 0) != argv[0]  ||  f (e, argv, 1) != argv[1];
+  ;
+  return 0;
+}
+_ACEOF
+for ac_arg in '' -qlanglvl=extc89 -qlanglvl=ansi -std \
+	-Ae "-Aa -D_HPUX_SOURCE" "-Xc -D__EXTENSIONS__"
+do
+  CC="$ac_save_CC $ac_arg"
+  if ac_fn_c_try_compile "$LINENO"; then :
+  ac_cv_prog_cc_c89=$ac_arg
+fi
+rm -f core conftest.err conftest.$ac_objext
+  test "x$ac_cv_prog_cc_c89" != "xno" && break
+done
+rm -f conftest.$ac_ext
+CC=$ac_save_CC
+
+fi
+# AC_CACHE_VAL
+case "x$ac_cv_prog_cc_c89" in
+  x)
+    { $as_echo "$as_me:${as_lineno-$LINENO}: result: none needed" >&5
+$as_echo "none needed" >&6; } ;;
+  xno)
+    { $as_echo "$as_me:${as_lineno-$LINENO}: result: unsupported" >&5
+$as_echo "unsupported" >&6; } ;;
+  *)
+    CC="$CC $ac_cv_prog_cc_c89"
+    { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_prog_cc_c89" >&5
+$as_echo "$ac_cv_prog_cc_c89" >&6; } ;;
+esac
+if test "x$ac_cv_prog_cc_c89" != xno; then :
+
+fi
+
+ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking whether $CC understands -c and -o together" >&5
+$as_echo_n "checking whether $CC understands -c and -o together... " >&6; }
+if ${am_cv_prog_cc_c_o+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+int
+main ()
+{
+
+  ;
+  return 0;
+}
+_ACEOF
+  # Make sure it works both with $CC and with simple cc.
+  # Following AC_PROG_CC_C_O, we do the test twice because some
+  # compilers refuse to overwrite an existing .o file with -o,
+  # though they will create one.
+  am_cv_prog_cc_c_o=yes
+  for am_i in 1 2; do
+    if { echo "$as_me:$LINENO: $CC -c conftest.$ac_ext -o conftest2.$ac_objext" >&5
+   ($CC -c conftest.$ac_ext -o conftest2.$ac_objext) >&5 2>&5
+   ac_status=$?
+   echo "$as_me:$LINENO: \$? = $ac_status" >&5
+   (exit $ac_status); } \
+         && test -f conftest2.$ac_objext; then
+      : OK
+    else
+      am_cv_prog_cc_c_o=no
+      break
+    fi
+  done
+  rm -f core conftest*
+  unset am_i
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $am_cv_prog_cc_c_o" >&5
+$as_echo "$am_cv_prog_cc_c_o" >&6; }
+if test "$am_cv_prog_cc_c_o" != yes; then
+   # Losing compiler, so override with the script.
+   # FIXME: It is wrong to rewrite CC.
+   # But if we don't then we get into trouble of one sort or another.
+   # A longer-term fix would be to have automake use am__CC in this case,
+   # and then we could set am__CC="\$(top_srcdir)/compile \$(CC)"
+   CC="$am_aux_dir/compile $CC"
+fi
+ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+
+depcc="$CC"   am_compiler_list=
+
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking dependency style of $depcc" >&5
+$as_echo_n "checking dependency style of $depcc... " >&6; }
+if ${am_cv_CC_dependencies_compiler_type+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  if test -z "$AMDEP_TRUE" && test -f "$am_depcomp"; then
+  # We make a subdir and do the tests there.  Otherwise we can end up
+  # making bogus files that we don't know about and never remove.  For
+  # instance it was reported that on HP-UX the gcc test will end up
+  # making a dummy file named 'D' -- because '-MD' means "put the output
+  # in D".
+  rm -rf conftest.dir
+  mkdir conftest.dir
+  # Copy depcomp to subdir because otherwise we won't find it if we're
+  # using a relative directory.
+  cp "$am_depcomp" conftest.dir
+  cd conftest.dir
+  # We will build objects and dependencies in a subdirectory because
+  # it helps to detect inapplicable dependency modes.  For instance
+  # both Tru64's cc and ICC support -MD to output dependencies as a
+  # side effect of compilation, but ICC will put the dependencies in
+  # the current directory while Tru64 will put them in the object
+  # directory.
+  mkdir sub
+
+  am_cv_CC_dependencies_compiler_type=none
+  if test "$am_compiler_list" = ""; then
+     am_compiler_list=`sed -n 's/^#*\([a-zA-Z0-9]*\))$/\1/p' < ./depcomp`
+  fi
+  am__universal=false
+  case " $depcc " in #(
+     *\ -arch\ *\ -arch\ *) am__universal=true ;;
+     esac
+
+  for depmode in $am_compiler_list; do
+    # Setup a source with many dependencies, because some compilers
+    # like to wrap large dependency lists on column 80 (with \), and
+    # we should not choose a depcomp mode which is confused by this.
+    #
+    # We need to recreate these files for each test, as the compiler may
+    # overwrite some of them when testing with obscure command lines.
+    # This happens at least with the AIX C compiler.
+    : > sub/conftest.c
+    for i in 1 2 3 4 5 6; do
+      echo '#include "conftst'$i'.h"' >> sub/conftest.c
+      # Using ": > sub/conftst$i.h" creates only sub/conftst1.h with
+      # Solaris 10 /bin/sh.
+      echo '/* dummy */' > sub/conftst$i.h
+    done
+    echo "${am__include} ${am__quote}sub/conftest.Po${am__quote}" > confmf
+
+    # We check with '-c' and '-o' for the sake of the "dashmstdout"
+    # mode.  It turns out that the SunPro C++ compiler does not properly
+    # handle '-M -o', and we need to detect this.  Also, some Intel
+    # versions had trouble with output in subdirs.
+    am__obj=sub/conftest.${OBJEXT-o}
+    am__minus_obj="-o $am__obj"
+    case $depmode in
+    gcc)
+      # This depmode causes a compiler race in universal mode.
+      test "$am__universal" = false || continue
+      ;;
+    nosideeffect)
+      # After this tag, mechanisms are not by side-effect, so they'll
+      # only be used when explicitly requested.
+      if test "x$enable_dependency_tracking" = xyes; then
+	continue
+      else
+	break
+      fi
+      ;;
+    msvc7 | msvc7msys | msvisualcpp | msvcmsys)
+      # This compiler won't grok '-c -o', but also, the minuso test has
+      # not run yet.  These depmodes are late enough in the game, and
+      # so weak that their functioning should not be impacted.
+      am__obj=conftest.${OBJEXT-o}
+      am__minus_obj=
+      ;;
+    none) break ;;
+    esac
+    if depmode=$depmode \
+       source=sub/conftest.c object=$am__obj \
+       depfile=sub/conftest.Po tmpdepfile=sub/conftest.TPo \
+       $SHELL ./depcomp $depcc -c $am__minus_obj sub/conftest.c \
+         >/dev/null 2>conftest.err &&
+       grep sub/conftst1.h sub/conftest.Po > /dev/null 2>&1 &&
+       grep sub/conftst6.h sub/conftest.Po > /dev/null 2>&1 &&
+       grep $am__obj sub/conftest.Po > /dev/null 2>&1 &&
+       ${MAKE-make} -s -f confmf > /dev/null 2>&1; then
+      # icc doesn't choke on unknown options, it will just issue warnings
+      # or remarks (even with -Werror).  So we grep stderr for any message
+      # that says an option was ignored or not supported.
+      # When given -MP, icc 7.0 and 7.1 complain thusly:
+      #   icc: Command line warning: ignoring option '-M'; no argument required
+      # The diagnosis changed in icc 8.0:
+      #   icc: Command line remark: option '-MP' not supported
+      if (grep 'ignoring option' conftest.err ||
+          grep 'not supported' conftest.err) >/dev/null 2>&1; then :; else
+        am_cv_CC_dependencies_compiler_type=$depmode
+        break
+      fi
+    fi
+  done
+
+  cd ..
+  rm -rf conftest.dir
+else
+  am_cv_CC_dependencies_compiler_type=none
+fi
+
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $am_cv_CC_dependencies_compiler_type" >&5
+$as_echo "$am_cv_CC_dependencies_compiler_type" >&6; }
+CCDEPMODE=depmode=$am_cv_CC_dependencies_compiler_type
+
+ if
+  test "x$enable_dependency_tracking" != xno \
+  && test "$am_cv_CC_dependencies_compiler_type" = gcc3; then
+  am__fastdepCC_TRUE=
+  am__fastdepCC_FALSE='#'
+else
+  am__fastdepCC_TRUE='#'
+  am__fastdepCC_FALSE=
+fi
+
+
+
+ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking how to run the C preprocessor" >&5
+$as_echo_n "checking how to run the C preprocessor... " >&6; }
+# On Suns, sometimes $CPP names a directory.
+if test -n "$CPP" && test -d "$CPP"; then
+  CPP=
+fi
+if test -z "$CPP"; then
+  if ${ac_cv_prog_CPP+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+      # Double quotes because CPP needs to be expanded
+    for CPP in "$CC -E" "$CC -E -traditional-cpp" "/lib/cpp"
+    do
+      ac_preproc_ok=false
+for ac_c_preproc_warn_flag in '' yes
+do
+  # Use a header file that comes with gcc, so configuring glibc
+  # with a fresh cross-compiler works.
+  # Prefer <limits.h> to <assert.h> if __STDC__ is defined, since
+  # <limits.h> exists even on freestanding compilers.
+  # On the NeXT, cc -E runs the code through the compiler's parser,
+  # not just through cpp. "Syntax error" is here to catch this case.
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#ifdef __STDC__
+# include <limits.h>
+#else
+# include <assert.h>
+#endif
+		     Syntax error
+_ACEOF
+if ac_fn_c_try_cpp "$LINENO"; then :
+
+else
+  # Broken: fails on valid input.
+continue
+fi
+rm -f conftest.err conftest.i conftest.$ac_ext
+
+  # OK, works on sane cases.  Now check whether nonexistent headers
+  # can be detected and how.
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <ac_nonexistent.h>
+_ACEOF
+if ac_fn_c_try_cpp "$LINENO"; then :
+  # Broken: success on invalid input.
+continue
+else
+  # Passes both tests.
+ac_preproc_ok=:
+break
+fi
+rm -f conftest.err conftest.i conftest.$ac_ext
+
+done
+# Because of `break', _AC_PREPROC_IFELSE's cleaning code was skipped.
+rm -f conftest.i conftest.err conftest.$ac_ext
+if $ac_preproc_ok; then :
+  break
+fi
+
+    done
+    ac_cv_prog_CPP=$CPP
+
+fi
+  CPP=$ac_cv_prog_CPP
+else
+  ac_cv_prog_CPP=$CPP
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $CPP" >&5
+$as_echo "$CPP" >&6; }
+ac_preproc_ok=false
+for ac_c_preproc_warn_flag in '' yes
+do
+  # Use a header file that comes with gcc, so configuring glibc
+  # with a fresh cross-compiler works.
+  # Prefer <limits.h> to <assert.h> if __STDC__ is defined, since
+  # <limits.h> exists even on freestanding compilers.
+  # On the NeXT, cc -E runs the code through the compiler's parser,
+  # not just through cpp. "Syntax error" is here to catch this case.
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#ifdef __STDC__
+# include <limits.h>
+#else
+# include <assert.h>
+#endif
+		     Syntax error
+_ACEOF
+if ac_fn_c_try_cpp "$LINENO"; then :
+
+else
+  # Broken: fails on valid input.
+continue
+fi
+rm -f conftest.err conftest.i conftest.$ac_ext
+
+  # OK, works on sane cases.  Now check whether nonexistent headers
+  # can be detected and how.
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <ac_nonexistent.h>
+_ACEOF
+if ac_fn_c_try_cpp "$LINENO"; then :
+  # Broken: success on invalid input.
+continue
+else
+  # Passes both tests.
+ac_preproc_ok=:
+break
+fi
+rm -f conftest.err conftest.i conftest.$ac_ext
+
+done
+# Because of `break', _AC_PREPROC_IFELSE's cleaning code was skipped.
+rm -f conftest.i conftest.err conftest.$ac_ext
+if $ac_preproc_ok; then :
+
+else
+  { { $as_echo "$as_me:${as_lineno-$LINENO}: error: in \`$ac_pwd':" >&5
+$as_echo "$as_me: error: in \`$ac_pwd':" >&2;}
+as_fn_error $? "C preprocessor \"$CPP\" fails sanity check
+See \`config.log' for more details" "$LINENO" 5; }
+fi
+
+ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for grep that handles long lines and -e" >&5
+$as_echo_n "checking for grep that handles long lines and -e... " >&6; }
+if ${ac_cv_path_GREP+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  if test -z "$GREP"; then
+  ac_path_GREP_found=false
+  # Loop through the user's path and test for each of PROGNAME-LIST
+  as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+for as_dir in $PATH$PATH_SEPARATOR/usr/xpg4/bin
+do
+  IFS=$as_save_IFS
+  test -z "$as_dir" && as_dir=.
+    for ac_prog in grep ggrep; do
+    for ac_exec_ext in '' $ac_executable_extensions; do
+      ac_path_GREP="$as_dir/$ac_prog$ac_exec_ext"
+      as_fn_executable_p "$ac_path_GREP" || continue
+# Check for GNU ac_path_GREP and select it if it is found.
+  # Check for GNU $ac_path_GREP
+case `"$ac_path_GREP" --version 2>&1` in
+*GNU*)
+  ac_cv_path_GREP="$ac_path_GREP" ac_path_GREP_found=:;;
+*)
+  ac_count=0
+  $as_echo_n 0123456789 >"conftest.in"
+  while :
+  do
+    cat "conftest.in" "conftest.in" >"conftest.tmp"
+    mv "conftest.tmp" "conftest.in"
+    cp "conftest.in" "conftest.nl"
+    $as_echo 'GREP' >> "conftest.nl"
+    "$ac_path_GREP" -e 'GREP$' -e '-(cannot match)-' < "conftest.nl" >"conftest.out" 2>/dev/null || break
+    diff "conftest.out" "conftest.nl" >/dev/null 2>&1 || break
+    as_fn_arith $ac_count + 1 && ac_count=$as_val
+    if test $ac_count -gt ${ac_path_GREP_max-0}; then
+      # Best one so far, save it but keep looking for a better one
+      ac_cv_path_GREP="$ac_path_GREP"
+      ac_path_GREP_max=$ac_count
+    fi
+    # 10*(2^10) chars as input seems more than enough
+    test $ac_count -gt 10 && break
+  done
+  rm -f conftest.in conftest.tmp conftest.nl conftest.out;;
+esac
+
+      $ac_path_GREP_found && break 3
+    done
+  done
+  done
+IFS=$as_save_IFS
+  if test -z "$ac_cv_path_GREP"; then
+    as_fn_error $? "no acceptable grep could be found in $PATH$PATH_SEPARATOR/usr/xpg4/bin" "$LINENO" 5
+  fi
+else
+  ac_cv_path_GREP=$GREP
+fi
+
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_path_GREP" >&5
+$as_echo "$ac_cv_path_GREP" >&6; }
+ GREP="$ac_cv_path_GREP"
+
+
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for egrep" >&5
+$as_echo_n "checking for egrep... " >&6; }
+if ${ac_cv_path_EGREP+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  if echo a | $GREP -E '(a|b)' >/dev/null 2>&1
+   then ac_cv_path_EGREP="$GREP -E"
+   else
+     if test -z "$EGREP"; then
+  ac_path_EGREP_found=false
+  # Loop through the user's path and test for each of PROGNAME-LIST
+  as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+for as_dir in $PATH$PATH_SEPARATOR/usr/xpg4/bin
+do
+  IFS=$as_save_IFS
+  test -z "$as_dir" && as_dir=.
+    for ac_prog in egrep; do
+    for ac_exec_ext in '' $ac_executable_extensions; do
+      ac_path_EGREP="$as_dir/$ac_prog$ac_exec_ext"
+      as_fn_executable_p "$ac_path_EGREP" || continue
+# Check for GNU ac_path_EGREP and select it if it is found.
+  # Check for GNU $ac_path_EGREP
+case `"$ac_path_EGREP" --version 2>&1` in
+*GNU*)
+  ac_cv_path_EGREP="$ac_path_EGREP" ac_path_EGREP_found=:;;
+*)
+  ac_count=0
+  $as_echo_n 0123456789 >"conftest.in"
+  while :
+  do
+    cat "conftest.in" "conftest.in" >"conftest.tmp"
+    mv "conftest.tmp" "conftest.in"
+    cp "conftest.in" "conftest.nl"
+    $as_echo 'EGREP' >> "conftest.nl"
+    "$ac_path_EGREP" 'EGREP$' < "conftest.nl" >"conftest.out" 2>/dev/null || break
+    diff "conftest.out" "conftest.nl" >/dev/null 2>&1 || break
+    as_fn_arith $ac_count + 1 && ac_count=$as_val
+    if test $ac_count -gt ${ac_path_EGREP_max-0}; then
+      # Best one so far, save it but keep looking for a better one
+      ac_cv_path_EGREP="$ac_path_EGREP"
+      ac_path_EGREP_max=$ac_count
+    fi
+    # 10*(2^10) chars as input seems more than enough
+    test $ac_count -gt 10 && break
+  done
+  rm -f conftest.in conftest.tmp conftest.nl conftest.out;;
+esac
+
+      $ac_path_EGREP_found && break 3
+    done
+  done
+  done
+IFS=$as_save_IFS
+  if test -z "$ac_cv_path_EGREP"; then
+    as_fn_error $? "no acceptable egrep could be found in $PATH$PATH_SEPARATOR/usr/xpg4/bin" "$LINENO" 5
+  fi
+else
+  ac_cv_path_EGREP=$EGREP
+fi
+
+   fi
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_path_EGREP" >&5
+$as_echo "$ac_cv_path_EGREP" >&6; }
+ EGREP="$ac_cv_path_EGREP"
+
+
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for ANSI C header files" >&5
+$as_echo_n "checking for ANSI C header files... " >&6; }
+if ${ac_cv_header_stdc+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <stdlib.h>
+#include <stdarg.h>
+#include <string.h>
+#include <float.h>
+
+int
+main ()
+{
+
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_c_try_compile "$LINENO"; then :
+  ac_cv_header_stdc=yes
+else
+  ac_cv_header_stdc=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+
+if test $ac_cv_header_stdc = yes; then
+  # SunOS 4.x string.h does not declare mem*, contrary to ANSI.
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <string.h>
+
+_ACEOF
+if (eval "$ac_cpp conftest.$ac_ext") 2>&5 |
+  $EGREP "memchr" >/dev/null 2>&1; then :
+
+else
+  ac_cv_header_stdc=no
+fi
+rm -f conftest*
+
+fi
+
+if test $ac_cv_header_stdc = yes; then
+  # ISC 2.0.2 stdlib.h does not declare free, contrary to ANSI.
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <stdlib.h>
+
+_ACEOF
+if (eval "$ac_cpp conftest.$ac_ext") 2>&5 |
+  $EGREP "free" >/dev/null 2>&1; then :
+
+else
+  ac_cv_header_stdc=no
+fi
+rm -f conftest*
+
+fi
+
+if test $ac_cv_header_stdc = yes; then
+  # /bin/cc in Irix-4.0.5 gets non-ANSI ctype macros unless using -ansi.
+  if test "$cross_compiling" = yes; then :
+  :
+else
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <ctype.h>
+#include <stdlib.h>
+#if ((' ' & 0x0FF) == 0x020)
+# define ISLOWER(c) ('a' <= (c) && (c) <= 'z')
+# define TOUPPER(c) (ISLOWER(c) ? 'A' + ((c) - 'a') : (c))
+#else
+# define ISLOWER(c) \
+		   (('a' <= (c) && (c) <= 'i') \
+		     || ('j' <= (c) && (c) <= 'r') \
+		     || ('s' <= (c) && (c) <= 'z'))
+# define TOUPPER(c) (ISLOWER(c) ? ((c) | 0x40) : (c))
+#endif
+
+#define XOR(e, f) (((e) && !(f)) || (!(e) && (f)))
+int
+main ()
+{
+  int i;
+  for (i = 0; i < 256; i++)
+    if (XOR (islower (i), ISLOWER (i))
+	|| toupper (i) != TOUPPER (i))
+      return 2;
+  return 0;
+}
+_ACEOF
+if ac_fn_c_try_run "$LINENO"; then :
+
+else
+  ac_cv_header_stdc=no
+fi
+rm -f core *.core core.conftest.* gmon.out bb.out conftest$ac_exeext \
+  conftest.$ac_objext conftest.beam conftest.$ac_ext
+fi
+
+fi
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_header_stdc" >&5
+$as_echo "$ac_cv_header_stdc" >&6; }
+if test $ac_cv_header_stdc = yes; then
+
+$as_echo "#define STDC_HEADERS 1" >>confdefs.h
+
+fi
+
+# On IRIX 5.3, sys/types and inttypes.h are conflicting.
+for ac_header in sys/types.h sys/stat.h stdlib.h string.h memory.h strings.h \
+		  inttypes.h stdint.h unistd.h
+do :
+  as_ac_Header=`$as_echo "ac_cv_header_$ac_header" | $as_tr_sh`
+ac_fn_c_check_header_compile "$LINENO" "$ac_header" "$as_ac_Header" "$ac_includes_default
+"
+if eval test \"x\$"$as_ac_Header"\" = x"yes"; then :
+  cat >>confdefs.h <<_ACEOF
+#define `$as_echo "HAVE_$ac_header" | $as_tr_cpp` 1
+_ACEOF
+
+fi
+
+done
+
+
+
+  ac_fn_c_check_header_mongrel "$LINENO" "minix/config.h" "ac_cv_header_minix_config_h" "$ac_includes_default"
+if test "x$ac_cv_header_minix_config_h" = xyes; then :
+  MINIX=yes
+else
+  MINIX=
+fi
+
+
+  if test "$MINIX" = yes; then
+
+$as_echo "#define _POSIX_SOURCE 1" >>confdefs.h
+
+
+$as_echo "#define _POSIX_1_SOURCE 2" >>confdefs.h
+
+
+$as_echo "#define _MINIX 1" >>confdefs.h
+
+  fi
+
+
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether it is safe to define __EXTENSIONS__" >&5
+$as_echo_n "checking whether it is safe to define __EXTENSIONS__... " >&6; }
+if ${ac_cv_safe_to_define___extensions__+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+#         define __EXTENSIONS__ 1
+          $ac_includes_default
+int
+main ()
+{
+
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_c_try_compile "$LINENO"; then :
+  ac_cv_safe_to_define___extensions__=yes
+else
+  ac_cv_safe_to_define___extensions__=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_safe_to_define___extensions__" >&5
+$as_echo "$ac_cv_safe_to_define___extensions__" >&6; }
+  test $ac_cv_safe_to_define___extensions__ = yes &&
+    $as_echo "#define __EXTENSIONS__ 1" >>confdefs.h
+
+  $as_echo "#define _ALL_SOURCE 1" >>confdefs.h
+
+  $as_echo "#define _GNU_SOURCE 1" >>confdefs.h
+
+  $as_echo "#define _POSIX_PTHREAD_SEMANTICS 1" >>confdefs.h
+
+  $as_echo "#define _TANDEM_SOURCE 1" >>confdefs.h
+
+
+
+# Check whether --enable-lzo was given.
+if test "${enable_lzo+set}" = set; then :
+  enableval=$enable_lzo;
+else
+  enable_lzo="yes"
+
+fi
+
+
+# Check whether --enable-lz4 was given.
+if test "${enable_lz4+set}" = set; then :
+  enableval=$enable_lz4; enable_lz4="$enableval"
+else
+  enable_lz4="yes"
+
+fi
+
+
+# Check whether --enable-comp-stub was given.
+if test "${enable_comp_stub+set}" = set; then :
+  enableval=$enable_comp_stub; enable_comp_stub="$enableval"
+else
+  enable_comp_stub="no"
+
+fi
+
+
+# Check whether --enable-ofb-cfb was given.
+if test "${enable_ofb_cfb+set}" = set; then :
+  enableval=$enable_ofb_cfb;
+else
+  enable_crypto_ofb_cfb="yes"
+
+fi
+
+
+# Check whether --enable-x509-alt-username was given.
+if test "${enable_x509_alt_username+set}" = set; then :
+  enableval=$enable_x509_alt_username;
+else
+  enable_x509_alt_username="no"
+
+fi
+
+
+# Check whether --enable-plugins was given.
+if test "${enable_plugins+set}" = set; then :
+  enableval=$enable_plugins;
+else
+  enable_plugins="yes"
+
+fi
+
+
+# Check whether --enable-management was given.
+if test "${enable_management+set}" = set; then :
+  enableval=$enable_management;
+else
+  enable_management="yes"
+
+fi
+
+
+# Check whether --enable-pkcs11 was given.
+if test "${enable_pkcs11+set}" = set; then :
+  enableval=$enable_pkcs11;
+else
+  enable_pkcs11="no"
+
+fi
+
+
+# Check whether --enable-fragment was given.
+if test "${enable_fragment+set}" = set; then :
+  enableval=$enable_fragment;
+else
+  enable_fragment="yes"
+
+fi
+
+
+# Check whether --enable-multihome was given.
+if test "${enable_multihome+set}" = set; then :
+  enableval=$enable_multihome;
+else
+  enable_multihome="yes"
+
+fi
+
+
+# Check whether --enable-port-share was given.
+if test "${enable_port_share+set}" = set; then :
+  enableval=$enable_port_share;
+else
+  enable_port_share="yes"
+
+fi
+
+
+# Check whether --enable-debug was given.
+if test "${enable_debug+set}" = set; then :
+  enableval=$enable_debug;
+else
+  enable_debug="yes"
+
+fi
+
+
+# Check whether --enable-small was given.
+if test "${enable_small+set}" = set; then :
+  enableval=$enable_small;
+else
+  enable_small="no"
+
+fi
+
+
+# Check whether --enable-iproute2 was given.
+if test "${enable_iproute2+set}" = set; then :
+  enableval=$enable_iproute2;
+else
+  enable_iproute2="no"
+
+fi
+
+
+# Check whether --enable-def-auth was given.
+if test "${enable_def_auth+set}" = set; then :
+  enableval=$enable_def_auth;
+else
+  enable_def_auth="yes"
+
+fi
+
+
+# Check whether --enable-pf was given.
+if test "${enable_pf+set}" = set; then :
+  enableval=$enable_pf;
+else
+  enable_pf="yes"
+
+fi
+
+
+# Check whether --enable-plugin-auth-pam was given.
+if test "${enable_plugin_auth_pam+set}" = set; then :
+  enableval=$enable_plugin_auth_pam;
+else
+
+		case "$host" in
+			*-*-openbsd*) enable_plugin_auth_pam="no";;
+			*-mingw*) enable_plugin_auth_pam="no";;
+			*) enable_plugin_auth_pam="yes";;
+		esac
+
+
+fi
+
+
+# Check whether --enable-plugin-down-root was given.
+if test "${enable_plugin_down_root+set}" = set; then :
+  enableval=$enable_plugin_down_root;
+else
+
+		case "$host" in
+			*-mingw*) enable_plugin_down_root="no";;
+			*) enable_plugin_down_root="yes";;
+		esac
+
+
+fi
+
+
+# Check whether --enable-pam-dlopen was given.
+if test "${enable_pam_dlopen+set}" = set; then :
+  enableval=$enable_pam_dlopen;
+else
+  enable_pam_dlopen="no"
+
+fi
+
+
+# Check whether --enable-strict was given.
+if test "${enable_strict+set}" = set; then :
+  enableval=$enable_strict;
+else
+  enable_strict="no"
+
+fi
+
+
+# Check whether --enable-pedantic was given.
+if test "${enable_pedantic+set}" = set; then :
+  enableval=$enable_pedantic;
+else
+  enable_pedantic="no"
+
+fi
+
+
+# Check whether --enable-werror was given.
+if test "${enable_werror+set}" = set; then :
+  enableval=$enable_werror;
+else
+  enable_werror="no"
+
+fi
+
+
+# Check whether --enable-strict-options was given.
+if test "${enable_strict_options+set}" = set; then :
+  enableval=$enable_strict_options;
+else
+  enable_strict_options="no"
+
+fi
+
+
+# Check whether --enable-selinux was given.
+if test "${enable_selinux+set}" = set; then :
+  enableval=$enable_selinux;
+else
+  enable_selinux="no"
+
+fi
+
+
+# Check whether --enable-systemd was given.
+if test "${enable_systemd+set}" = set; then :
+  enableval=$enable_systemd;
+else
+  enable_systemd="no"
+
+fi
+
+
+# Check whether --enable-async-push was given.
+if test "${enable_async_push+set}" = set; then :
+  enableval=$enable_async_push;
+else
+  enable_async_push="no"
+
+fi
+
+
+
+# Check whether --with-special-build was given.
+if test "${with_special_build+set}" = set; then :
+  withval=$with_special_build; test -n "${withval}" &&
+cat >>confdefs.h <<_ACEOF
+#define CONFIGURE_SPECIAL_BUILD "${withval}"
+_ACEOF
+
+
+fi
+
+
+
+# Check whether --with-mem-check was given.
+if test "${with_mem_check+set}" = set; then :
+  withval=$with_mem_check;
+		case "${withval}" in
+			dmalloc|valgrind|ssl|no) ;;
+			*) as_fn_error $? "bad value ${withval} for --mem-check" "$LINENO" 5 ;;
+		esac
+
+else
+  with_mem_check="no"
+
+fi
+
+
+
+# Check whether --with-crypto-library was given.
+if test "${with_crypto_library+set}" = set; then :
+  withval=$with_crypto_library;
+		case "${withval}" in
+			openssl|mbedtls) ;;
+			*) as_fn_error $? "bad value ${withval} for --with-crypto-library" "$LINENO" 5 ;;
+		esac
+
+else
+  with_crypto_library="openssl"
+
+fi
+
+
+
+if test -n "${PLUGINDIR}"; then
+	plugindir="${PLUGINDIR}"
+else
+	plugindir="\${libdir}/openvpn/plugins"
+fi
+
+
+cat >>confdefs.h <<_ACEOF
+#define TARGET_ALIAS "${host}"
+_ACEOF
+
+ if false; then
+  TARGET_LINUX_TRUE=
+  TARGET_LINUX_FALSE='#'
+else
+  TARGET_LINUX_TRUE='#'
+  TARGET_LINUX_FALSE=
+fi
+
+case "$host" in
+	*-*-linux*)
+
+$as_echo "#define TARGET_LINUX 1" >>confdefs.h
+
+		 if true; then
+  TARGET_LINUX_TRUE=
+  TARGET_LINUX_FALSE='#'
+else
+  TARGET_LINUX_TRUE='#'
+  TARGET_LINUX_FALSE=
+fi
+
+
+cat >>confdefs.h <<_ACEOF
+#define TARGET_PREFIX "L"
+_ACEOF
+
+		have_sitnl="yes"
+		;;
+	*-*-solaris*)
+
+$as_echo "#define TARGET_SOLARIS 1" >>confdefs.h
+
+
+cat >>confdefs.h <<_ACEOF
+#define TARGET_PREFIX "S"
+_ACEOF
+
+		CPPFLAGS="$CPPFLAGS -D_XPG4_2"
+		test -x /bin/bash && SHELL="/bin/bash"
+		;;
+	*-*-openbsd*)
+
+$as_echo "#define TARGET_OPENBSD 1" >>confdefs.h
+
+
+cat >>confdefs.h <<_ACEOF
+#define TARGET_PREFIX "O"
+_ACEOF
+
+		;;
+	*-*-freebsd*)
+
+$as_echo "#define TARGET_FREEBSD 1" >>confdefs.h
+
+
+cat >>confdefs.h <<_ACEOF
+#define TARGET_PREFIX "F"
+_ACEOF
+
+		;;
+	*-*-netbsd*)
+
+$as_echo "#define TARGET_NETBSD 1" >>confdefs.h
+
+
+cat >>confdefs.h <<_ACEOF
+#define TARGET_PREFIX "N"
+_ACEOF
+
+		;;
+	*-*-darwin*)
+
+$as_echo "#define TARGET_DARWIN 1" >>confdefs.h
+
+
+cat >>confdefs.h <<_ACEOF
+#define TARGET_PREFIX "M"
+_ACEOF
+
+		have_tap_header="yes"
+		ac_cv_type_struct_in_pktinfo=no
+		;;
+	*-mingw*)
+
+$as_echo "#define TARGET_WIN32 1" >>confdefs.h
+
+
+cat >>confdefs.h <<_ACEOF
+#define TARGET_PREFIX "W"
+_ACEOF
+
+		CPPFLAGS="${CPPFLAGS} -DWIN32_LEAN_AND_MEAN"
+		CPPFLAGS="${CPPFLAGS} -DNTDDI_VERSION=NTDDI_VISTA -D_WIN32_WINNT=_WIN32_WINNT_VISTA"
+		WIN32=yes
+		;;
+	*-*-dragonfly*)
+
+$as_echo "#define TARGET_DRAGONFLY 1" >>confdefs.h
+
+
+cat >>confdefs.h <<_ACEOF
+#define TARGET_PREFIX "D"
+_ACEOF
+
+		;;
+	*-aix*)
+
+$as_echo "#define TARGET_AIX 1" >>confdefs.h
+
+
+cat >>confdefs.h <<_ACEOF
+#define TARGET_PREFIX "A"
+_ACEOF
+
+		ROUTE="/usr/sbin/route"
+		have_tap_header="yes"
+		ac_cv_header_net_if_h="no"	# exists, but breaks things
+		;;
+	*)
+
+cat >>confdefs.h <<_ACEOF
+#define TARGET_PREFIX "X"
+_ACEOF
+
+		have_tap_header="yes"
+		;;
+esac
+
+
+
+
+
+
+
+
+if test "x$ac_cv_env_PKG_CONFIG_set" != "xset"; then
+	if test -n "$ac_tool_prefix"; then
+  # Extract the first word of "${ac_tool_prefix}pkg-config", so it can be a program name with args.
+set dummy ${ac_tool_prefix}pkg-config; ac_word=$2
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
+$as_echo_n "checking for $ac_word... " >&6; }
+if ${ac_cv_path_PKG_CONFIG+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  case $PKG_CONFIG in
+  [\\/]* | ?:[\\/]*)
+  ac_cv_path_PKG_CONFIG="$PKG_CONFIG" # Let the user override the test with a path.
+  ;;
+  *)
+  as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+for as_dir in $PATH
+do
+  IFS=$as_save_IFS
+  test -z "$as_dir" && as_dir=.
+    for ac_exec_ext in '' $ac_executable_extensions; do
+  if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
+    ac_cv_path_PKG_CONFIG="$as_dir/$ac_word$ac_exec_ext"
+    $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
+    break 2
+  fi
+done
+  done
+IFS=$as_save_IFS
+
+  ;;
+esac
+fi
+PKG_CONFIG=$ac_cv_path_PKG_CONFIG
+if test -n "$PKG_CONFIG"; then
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $PKG_CONFIG" >&5
+$as_echo "$PKG_CONFIG" >&6; }
+else
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+fi
+
+
+fi
+if test -z "$ac_cv_path_PKG_CONFIG"; then
+  ac_pt_PKG_CONFIG=$PKG_CONFIG
+  # Extract the first word of "pkg-config", so it can be a program name with args.
+set dummy pkg-config; ac_word=$2
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
+$as_echo_n "checking for $ac_word... " >&6; }
+if ${ac_cv_path_ac_pt_PKG_CONFIG+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  case $ac_pt_PKG_CONFIG in
+  [\\/]* | ?:[\\/]*)
+  ac_cv_path_ac_pt_PKG_CONFIG="$ac_pt_PKG_CONFIG" # Let the user override the test with a path.
+  ;;
+  *)
+  as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+for as_dir in $PATH
+do
+  IFS=$as_save_IFS
+  test -z "$as_dir" && as_dir=.
+    for ac_exec_ext in '' $ac_executable_extensions; do
+  if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
+    ac_cv_path_ac_pt_PKG_CONFIG="$as_dir/$ac_word$ac_exec_ext"
+    $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
+    break 2
+  fi
+done
+  done
+IFS=$as_save_IFS
+
+  ;;
+esac
+fi
+ac_pt_PKG_CONFIG=$ac_cv_path_ac_pt_PKG_CONFIG
+if test -n "$ac_pt_PKG_CONFIG"; then
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_pt_PKG_CONFIG" >&5
+$as_echo "$ac_pt_PKG_CONFIG" >&6; }
+else
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+fi
+
+  if test "x$ac_pt_PKG_CONFIG" = x; then
+    PKG_CONFIG=""
+  else
+    case $cross_compiling:$ac_tool_warned in
+yes:)
+{ $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: using cross tools not prefixed with host triplet" >&5
+$as_echo "$as_me: WARNING: using cross tools not prefixed with host triplet" >&2;}
+ac_tool_warned=yes ;;
+esac
+    PKG_CONFIG=$ac_pt_PKG_CONFIG
+  fi
+else
+  PKG_CONFIG="$ac_cv_path_PKG_CONFIG"
+fi
+
+fi
+if test -n "$PKG_CONFIG"; then
+	_pkg_min_version=0.9.0
+	{ $as_echo "$as_me:${as_lineno-$LINENO}: checking pkg-config is at least version $_pkg_min_version" >&5
+$as_echo_n "checking pkg-config is at least version $_pkg_min_version... " >&6; }
+	if $PKG_CONFIG --atleast-pkgconfig-version $_pkg_min_version; then
+		{ $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+$as_echo "yes" >&6; }
+	else
+		{ $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+		PKG_CONFIG=""
+	fi
+fi
+ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking how to run the C preprocessor" >&5
+$as_echo_n "checking how to run the C preprocessor... " >&6; }
+# On Suns, sometimes $CPP names a directory.
+if test -n "$CPP" && test -d "$CPP"; then
+  CPP=
+fi
+if test -z "$CPP"; then
+  if ${ac_cv_prog_CPP+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+      # Double quotes because CPP needs to be expanded
+    for CPP in "$CC -E" "$CC -E -traditional-cpp" "/lib/cpp"
+    do
+      ac_preproc_ok=false
+for ac_c_preproc_warn_flag in '' yes
+do
+  # Use a header file that comes with gcc, so configuring glibc
+  # with a fresh cross-compiler works.
+  # Prefer <limits.h> to <assert.h> if __STDC__ is defined, since
+  # <limits.h> exists even on freestanding compilers.
+  # On the NeXT, cc -E runs the code through the compiler's parser,
+  # not just through cpp. "Syntax error" is here to catch this case.
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#ifdef __STDC__
+# include <limits.h>
+#else
+# include <assert.h>
+#endif
+		     Syntax error
+_ACEOF
+if ac_fn_c_try_cpp "$LINENO"; then :
+
+else
+  # Broken: fails on valid input.
+continue
+fi
+rm -f conftest.err conftest.i conftest.$ac_ext
+
+  # OK, works on sane cases.  Now check whether nonexistent headers
+  # can be detected and how.
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <ac_nonexistent.h>
+_ACEOF
+if ac_fn_c_try_cpp "$LINENO"; then :
+  # Broken: success on invalid input.
+continue
+else
+  # Passes both tests.
+ac_preproc_ok=:
+break
+fi
+rm -f conftest.err conftest.i conftest.$ac_ext
+
+done
+# Because of `break', _AC_PREPROC_IFELSE's cleaning code was skipped.
+rm -f conftest.i conftest.err conftest.$ac_ext
+if $ac_preproc_ok; then :
+  break
+fi
+
+    done
+    ac_cv_prog_CPP=$CPP
+
+fi
+  CPP=$ac_cv_prog_CPP
+else
+  ac_cv_prog_CPP=$CPP
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $CPP" >&5
+$as_echo "$CPP" >&6; }
+ac_preproc_ok=false
+for ac_c_preproc_warn_flag in '' yes
+do
+  # Use a header file that comes with gcc, so configuring glibc
+  # with a fresh cross-compiler works.
+  # Prefer <limits.h> to <assert.h> if __STDC__ is defined, since
+  # <limits.h> exists even on freestanding compilers.
+  # On the NeXT, cc -E runs the code through the compiler's parser,
+  # not just through cpp. "Syntax error" is here to catch this case.
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#ifdef __STDC__
+# include <limits.h>
+#else
+# include <assert.h>
+#endif
+		     Syntax error
+_ACEOF
+if ac_fn_c_try_cpp "$LINENO"; then :
+
+else
+  # Broken: fails on valid input.
+continue
+fi
+rm -f conftest.err conftest.i conftest.$ac_ext
+
+  # OK, works on sane cases.  Now check whether nonexistent headers
+  # can be detected and how.
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <ac_nonexistent.h>
+_ACEOF
+if ac_fn_c_try_cpp "$LINENO"; then :
+  # Broken: success on invalid input.
+continue
+else
+  # Passes both tests.
+ac_preproc_ok=:
+break
+fi
+rm -f conftest.err conftest.i conftest.$ac_ext
+
+done
+# Because of `break', _AC_PREPROC_IFELSE's cleaning code was skipped.
+rm -f conftest.i conftest.err conftest.$ac_ext
+if $ac_preproc_ok; then :
+
+else
+  { { $as_echo "$as_me:${as_lineno-$LINENO}: error: in \`$ac_pwd':" >&5
+$as_echo "$as_me: error: in \`$ac_pwd':" >&2;}
+as_fn_error $? "C preprocessor \"$CPP\" fails sanity check
+See \`config.log' for more details" "$LINENO" 5; }
+fi
+
+ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking whether ln -s works" >&5
+$as_echo_n "checking whether ln -s works... " >&6; }
+LN_S=$as_ln_s
+if test "$LN_S" = "ln -s"; then
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+$as_echo "yes" >&6; }
+else
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no, using $LN_S" >&5
+$as_echo "no, using $LN_S" >&6; }
+fi
+
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for a sed that does not truncate output" >&5
+$as_echo_n "checking for a sed that does not truncate output... " >&6; }
+if ${ac_cv_path_SED+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+            ac_script=s/aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa/bbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbb/
+     for ac_i in 1 2 3 4 5 6 7; do
+       ac_script="$ac_script$as_nl$ac_script"
+     done
+     echo "$ac_script" 2>/dev/null | sed 99q >conftest.sed
+     { ac_script=; unset ac_script;}
+     if test -z "$SED"; then
+  ac_path_SED_found=false
+  # Loop through the user's path and test for each of PROGNAME-LIST
+  as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+for as_dir in $PATH
+do
+  IFS=$as_save_IFS
+  test -z "$as_dir" && as_dir=.
+    for ac_prog in sed gsed; do
+    for ac_exec_ext in '' $ac_executable_extensions; do
+      ac_path_SED="$as_dir/$ac_prog$ac_exec_ext"
+      as_fn_executable_p "$ac_path_SED" || continue
+# Check for GNU ac_path_SED and select it if it is found.
+  # Check for GNU $ac_path_SED
+case `"$ac_path_SED" --version 2>&1` in
+*GNU*)
+  ac_cv_path_SED="$ac_path_SED" ac_path_SED_found=:;;
+*)
+  ac_count=0
+  $as_echo_n 0123456789 >"conftest.in"
+  while :
+  do
+    cat "conftest.in" "conftest.in" >"conftest.tmp"
+    mv "conftest.tmp" "conftest.in"
+    cp "conftest.in" "conftest.nl"
+    $as_echo '' >> "conftest.nl"
+    "$ac_path_SED" -f conftest.sed < "conftest.nl" >"conftest.out" 2>/dev/null || break
+    diff "conftest.out" "conftest.nl" >/dev/null 2>&1 || break
+    as_fn_arith $ac_count + 1 && ac_count=$as_val
+    if test $ac_count -gt ${ac_path_SED_max-0}; then
+      # Best one so far, save it but keep looking for a better one
+      ac_cv_path_SED="$ac_path_SED"
+      ac_path_SED_max=$ac_count
+    fi
+    # 10*(2^10) chars as input seems more than enough
+    test $ac_count -gt 10 && break
+  done
+  rm -f conftest.in conftest.tmp conftest.nl conftest.out;;
+esac
+
+      $ac_path_SED_found && break 3
+    done
+  done
+  done
+IFS=$as_save_IFS
+  if test -z "$ac_cv_path_SED"; then
+    as_fn_error $? "no acceptable sed could be found in \$PATH" "$LINENO" 5
+  fi
+else
+  ac_cv_path_SED=$SED
+fi
+
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_path_SED" >&5
+$as_echo "$ac_cv_path_SED" >&6; }
+ SED="$ac_cv_path_SED"
+  rm -f conftest.sed
+
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking whether ${MAKE-make} sets \$(MAKE)" >&5
+$as_echo_n "checking whether ${MAKE-make} sets \$(MAKE)... " >&6; }
+set x ${MAKE-make}
+ac_make=`$as_echo "$2" | sed 's/+/p/g; s/[^a-zA-Z0-9_]/_/g'`
+if eval \${ac_cv_prog_make_${ac_make}_set+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  cat >conftest.make <<\_ACEOF
+SHELL = /bin/sh
+all:
+	@echo '@@@%%%=$(MAKE)=@@@%%%'
+_ACEOF
+# GNU make sometimes prints "make[1]: Entering ...", which would confuse us.
+case `${MAKE-make} -f conftest.make 2>/dev/null` in
+  *@@@%%%=?*=@@@%%%*)
+    eval ac_cv_prog_make_${ac_make}_set=yes;;
+  *)
+    eval ac_cv_prog_make_${ac_make}_set=no;;
+esac
+rm -f conftest.make
+fi
+if eval test \$ac_cv_prog_make_${ac_make}_set = yes; then
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+$as_echo "yes" >&6; }
+  SET_MAKE=
+else
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+  SET_MAKE="MAKE=${MAKE-make}"
+fi
+
+
+
+
+
+ # tests
+
+
+
+
+for ac_prog in ifconfig
+do
+  # Extract the first word of "$ac_prog", so it can be a program name with args.
+set dummy $ac_prog; ac_word=$2
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
+$as_echo_n "checking for $ac_word... " >&6; }
+if ${ac_cv_path_IFCONFIG+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  case $IFCONFIG in
+  [\\/]* | ?:[\\/]*)
+  ac_cv_path_IFCONFIG="$IFCONFIG" # Let the user override the test with a path.
+  ;;
+  *)
+  as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+as_dummy="$PATH:/usr/local/sbin:/usr/sbin:/sbin"
+for as_dir in $as_dummy
+do
+  IFS=$as_save_IFS
+  test -z "$as_dir" && as_dir=.
+    for ac_exec_ext in '' $ac_executable_extensions; do
+  if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
+    ac_cv_path_IFCONFIG="$as_dir/$ac_word$ac_exec_ext"
+    $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
+    break 2
+  fi
+done
+  done
+IFS=$as_save_IFS
+
+  ;;
+esac
+fi
+IFCONFIG=$ac_cv_path_IFCONFIG
+if test -n "$IFCONFIG"; then
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $IFCONFIG" >&5
+$as_echo "$IFCONFIG" >&6; }
+else
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+fi
+
+
+  test -n "$IFCONFIG" && break
+done
+
+for ac_prog in route
+do
+  # Extract the first word of "$ac_prog", so it can be a program name with args.
+set dummy $ac_prog; ac_word=$2
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
+$as_echo_n "checking for $ac_word... " >&6; }
+if ${ac_cv_path_ROUTE+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  case $ROUTE in
+  [\\/]* | ?:[\\/]*)
+  ac_cv_path_ROUTE="$ROUTE" # Let the user override the test with a path.
+  ;;
+  *)
+  as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+as_dummy="$PATH:/usr/local/sbin:/usr/sbin:/sbin"
+for as_dir in $as_dummy
+do
+  IFS=$as_save_IFS
+  test -z "$as_dir" && as_dir=.
+    for ac_exec_ext in '' $ac_executable_extensions; do
+  if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
+    ac_cv_path_ROUTE="$as_dir/$ac_word$ac_exec_ext"
+    $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
+    break 2
+  fi
+done
+  done
+IFS=$as_save_IFS
+
+  ;;
+esac
+fi
+ROUTE=$ac_cv_path_ROUTE
+if test -n "$ROUTE"; then
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ROUTE" >&5
+$as_echo "$ROUTE" >&6; }
+else
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+fi
+
+
+  test -n "$ROUTE" && break
+done
+
+for ac_prog in ip
+do
+  # Extract the first word of "$ac_prog", so it can be a program name with args.
+set dummy $ac_prog; ac_word=$2
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
+$as_echo_n "checking for $ac_word... " >&6; }
+if ${ac_cv_path_IPROUTE+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  case $IPROUTE in
+  [\\/]* | ?:[\\/]*)
+  ac_cv_path_IPROUTE="$IPROUTE" # Let the user override the test with a path.
+  ;;
+  *)
+  as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+as_dummy="$PATH:/usr/local/sbin:/usr/sbin:/sbin"
+for as_dir in $as_dummy
+do
+  IFS=$as_save_IFS
+  test -z "$as_dir" && as_dir=.
+    for ac_exec_ext in '' $ac_executable_extensions; do
+  if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
+    ac_cv_path_IPROUTE="$as_dir/$ac_word$ac_exec_ext"
+    $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
+    break 2
+  fi
+done
+  done
+IFS=$as_save_IFS
+
+  ;;
+esac
+fi
+IPROUTE=$ac_cv_path_IPROUTE
+if test -n "$IPROUTE"; then
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $IPROUTE" >&5
+$as_echo "$IPROUTE" >&6; }
+else
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+fi
+
+
+  test -n "$IPROUTE" && break
+done
+
+for ac_prog in systemd-ask-password
+do
+  # Extract the first word of "$ac_prog", so it can be a program name with args.
+set dummy $ac_prog; ac_word=$2
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
+$as_echo_n "checking for $ac_word... " >&6; }
+if ${ac_cv_path_SYSTEMD_ASK_PASSWORD+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  case $SYSTEMD_ASK_PASSWORD in
+  [\\/]* | ?:[\\/]*)
+  ac_cv_path_SYSTEMD_ASK_PASSWORD="$SYSTEMD_ASK_PASSWORD" # Let the user override the test with a path.
+  ;;
+  *)
+  as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+as_dummy="$PATH:/usr/local/bin:/usr/bin:/bin"
+for as_dir in $as_dummy
+do
+  IFS=$as_save_IFS
+  test -z "$as_dir" && as_dir=.
+    for ac_exec_ext in '' $ac_executable_extensions; do
+  if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
+    ac_cv_path_SYSTEMD_ASK_PASSWORD="$as_dir/$ac_word$ac_exec_ext"
+    $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
+    break 2
+  fi
+done
+  done
+IFS=$as_save_IFS
+
+  ;;
+esac
+fi
+SYSTEMD_ASK_PASSWORD=$ac_cv_path_SYSTEMD_ASK_PASSWORD
+if test -n "$SYSTEMD_ASK_PASSWORD"; then
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $SYSTEMD_ASK_PASSWORD" >&5
+$as_echo "$SYSTEMD_ASK_PASSWORD" >&6; }
+else
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+fi
+
+
+  test -n "$SYSTEMD_ASK_PASSWORD" && break
+done
+
+for ac_prog in netstat
+do
+  # Extract the first word of "$ac_prog", so it can be a program name with args.
+set dummy $ac_prog; ac_word=$2
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
+$as_echo_n "checking for $ac_word... " >&6; }
+if ${ac_cv_prog_NETSTAT+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  if test -n "$NETSTAT"; then
+  ac_cv_prog_NETSTAT="$NETSTAT" # Let the user override the test.
+else
+as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+as_dummy="$PATH:/usr/local/sbin:/usr/sbin:/sbin:/etc"
+for as_dir in $as_dummy
+do
+  IFS=$as_save_IFS
+  test -z "$as_dir" && as_dir=.
+    for ac_exec_ext in '' $ac_executable_extensions; do
+  if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
+    ac_cv_prog_NETSTAT="$ac_prog"
+    $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
+    break 2
+  fi
+done
+  done
+IFS=$as_save_IFS
+
+fi
+fi
+NETSTAT=$ac_cv_prog_NETSTAT
+if test -n "$NETSTAT"; then
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $NETSTAT" >&5
+$as_echo "$NETSTAT" >&6; }
+else
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+fi
+
+
+  test -n "$NETSTAT" && break
+done
+test -n "$NETSTAT" || NETSTAT="netstat"
+ # tests
+for ac_prog in git
+do
+  # Extract the first word of "$ac_prog", so it can be a program name with args.
+set dummy $ac_prog; ac_word=$2
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
+$as_echo_n "checking for $ac_word... " >&6; }
+if ${ac_cv_prog_GIT+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  if test -n "$GIT"; then
+  ac_cv_prog_GIT="$GIT" # Let the user override the test.
+else
+as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+for as_dir in $PATH
+do
+  IFS=$as_save_IFS
+  test -z "$as_dir" && as_dir=.
+    for ac_exec_ext in '' $ac_executable_extensions; do
+  if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
+    ac_cv_prog_GIT="$ac_prog"
+    $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
+    break 2
+  fi
+done
+  done
+IFS=$as_save_IFS
+
+fi
+fi
+GIT=$ac_cv_prog_GIT
+if test -n "$GIT"; then
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $GIT" >&5
+$as_echo "$GIT" >&6; }
+else
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+fi
+
+
+  test -n "$GIT" && break
+done
+ # optional
+
+cat >>confdefs.h <<_ACEOF
+#define IFCONFIG_PATH "$IFCONFIG"
+_ACEOF
+
+
+cat >>confdefs.h <<_ACEOF
+#define IPROUTE_PATH "$IPROUTE"
+_ACEOF
+
+
+cat >>confdefs.h <<_ACEOF
+#define ROUTE_PATH "$ROUTE"
+_ACEOF
+
+
+cat >>confdefs.h <<_ACEOF
+#define SYSTEMD_ASK_PASSWORD_PATH "$SYSTEMD_ASK_PASSWORD"
+_ACEOF
+
+
+#
+#  man page generation - based on python-docutils
+#
+
+
+for ac_prog in rst2man
+do
+  # Extract the first word of "$ac_prog", so it can be a program name with args.
+set dummy $ac_prog; ac_word=$2
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
+$as_echo_n "checking for $ac_word... " >&6; }
+if ${ac_cv_prog_RST2MAN+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  if test -n "$RST2MAN"; then
+  ac_cv_prog_RST2MAN="$RST2MAN" # Let the user override the test.
+else
+as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+for as_dir in $PATH
+do
+  IFS=$as_save_IFS
+  test -z "$as_dir" && as_dir=.
+    for ac_exec_ext in '' $ac_executable_extensions; do
+  if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
+    ac_cv_prog_RST2MAN="$ac_prog"
+    $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
+    break 2
+  fi
+done
+  done
+IFS=$as_save_IFS
+
+fi
+fi
+RST2MAN=$ac_cv_prog_RST2MAN
+if test -n "$RST2MAN"; then
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $RST2MAN" >&5
+$as_echo "$RST2MAN" >&6; }
+else
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+fi
+
+
+  test -n "$RST2MAN" && break
+done
+
+for ac_prog in rst2html
+do
+  # Extract the first word of "$ac_prog", so it can be a program name with args.
+set dummy $ac_prog; ac_word=$2
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
+$as_echo_n "checking for $ac_word... " >&6; }
+if ${ac_cv_prog_RST2HTML+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  if test -n "$RST2HTML"; then
+  ac_cv_prog_RST2HTML="$RST2HTML" # Let the user override the test.
+else
+as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+for as_dir in $PATH
+do
+  IFS=$as_save_IFS
+  test -z "$as_dir" && as_dir=.
+    for ac_exec_ext in '' $ac_executable_extensions; do
+  if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
+    ac_cv_prog_RST2HTML="$ac_prog"
+    $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
+    break 2
+  fi
+done
+  done
+IFS=$as_save_IFS
+
+fi
+fi
+RST2HTML=$ac_cv_prog_RST2HTML
+if test -n "$RST2HTML"; then
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $RST2HTML" >&5
+$as_echo "$RST2HTML" >&6; }
+else
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+fi
+
+
+  test -n "$RST2HTML" && break
+done
+
+ if test "${RST2MAN}" -a "${RST2HTML}"; then
+  HAVE_PYDOCUTILS_TRUE=
+  HAVE_PYDOCUTILS_FALSE='#'
+else
+  HAVE_PYDOCUTILS_TRUE='#'
+  HAVE_PYDOCUTILS_FALSE=
+fi
+
+
+# Set -std=c99 unless user already specified a -std=
+case "${CFLAGS}" in
+  *-std=*) ;;
+  *)       CFLAGS="${CFLAGS} -std=c99" ;;
+esac
+
+#
+# Libtool
+#
+
+		case `pwd` in
+  *\ * | *\	*)
+    { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: Libtool does not cope well with whitespace in \`pwd\`" >&5
+$as_echo "$as_me: WARNING: Libtool does not cope well with whitespace in \`pwd\`" >&2;} ;;
+esac
+
+
+
+macro_version='2.4.6'
+macro_revision='2.4.6'
+
+
+
+
+
+
+
+
+
+
+
+
+
+ltmain=$ac_aux_dir/ltmain.sh
+
+# Backslashify metacharacters that are still active within
+# double-quoted strings.
+sed_quote_subst='s/\(["`$\\]\)/\\\1/g'
+
+# Same as above, but do not quote variable references.
+double_quote_subst='s/\(["`\\]\)/\\\1/g'
+
+# Sed substitution to delay expansion of an escaped shell variable in a
+# double_quote_subst'ed string.
+delay_variable_subst='s/\\\\\\\\\\\$/\\\\\\$/g'
+
+# Sed substitution to delay expansion of an escaped single quote.
+delay_single_quote_subst='s/'\''/'\'\\\\\\\'\''/g'
+
+# Sed substitution to avoid accidental globbing in evaled expressions
+no_glob_subst='s/\*/\\\*/g'
+
+ECHO='\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\'
+ECHO=$ECHO$ECHO$ECHO$ECHO$ECHO
+ECHO=$ECHO$ECHO$ECHO$ECHO$ECHO$ECHO
+
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking how to print strings" >&5
+$as_echo_n "checking how to print strings... " >&6; }
+# Test print first, because it will be a builtin if present.
+if test "X`( print -r -- -n ) 2>/dev/null`" = X-n && \
+   test "X`print -r -- $ECHO 2>/dev/null`" = "X$ECHO"; then
+  ECHO='print -r --'
+elif test "X`printf %s $ECHO 2>/dev/null`" = "X$ECHO"; then
+  ECHO='printf %s\n'
+else
+  # Use this function as a fallback that always works.
+  func_fallback_echo ()
+  {
+    eval 'cat <<_LTECHO_EOF
+$1
+_LTECHO_EOF'
+  }
+  ECHO='func_fallback_echo'
+fi
+
+# func_echo_all arg...
+# Invoke $ECHO with all args, space-separated.
+func_echo_all ()
+{
+    $ECHO ""
+}
+
+case $ECHO in
+  printf*) { $as_echo "$as_me:${as_lineno-$LINENO}: result: printf" >&5
+$as_echo "printf" >&6; } ;;
+  print*) { $as_echo "$as_me:${as_lineno-$LINENO}: result: print -r" >&5
+$as_echo "print -r" >&6; } ;;
+  *) { $as_echo "$as_me:${as_lineno-$LINENO}: result: cat" >&5
+$as_echo "cat" >&6; } ;;
+esac
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for a sed that does not truncate output" >&5
+$as_echo_n "checking for a sed that does not truncate output... " >&6; }
+if ${ac_cv_path_SED+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+            ac_script=s/aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa/bbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbb/
+     for ac_i in 1 2 3 4 5 6 7; do
+       ac_script="$ac_script$as_nl$ac_script"
+     done
+     echo "$ac_script" 2>/dev/null | sed 99q >conftest.sed
+     { ac_script=; unset ac_script;}
+     if test -z "$SED"; then
+  ac_path_SED_found=false
+  # Loop through the user's path and test for each of PROGNAME-LIST
+  as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+for as_dir in $PATH
+do
+  IFS=$as_save_IFS
+  test -z "$as_dir" && as_dir=.
+    for ac_prog in sed gsed; do
+    for ac_exec_ext in '' $ac_executable_extensions; do
+      ac_path_SED="$as_dir/$ac_prog$ac_exec_ext"
+      as_fn_executable_p "$ac_path_SED" || continue
+# Check for GNU ac_path_SED and select it if it is found.
+  # Check for GNU $ac_path_SED
+case `"$ac_path_SED" --version 2>&1` in
+*GNU*)
+  ac_cv_path_SED="$ac_path_SED" ac_path_SED_found=:;;
+*)
+  ac_count=0
+  $as_echo_n 0123456789 >"conftest.in"
+  while :
+  do
+    cat "conftest.in" "conftest.in" >"conftest.tmp"
+    mv "conftest.tmp" "conftest.in"
+    cp "conftest.in" "conftest.nl"
+    $as_echo '' >> "conftest.nl"
+    "$ac_path_SED" -f conftest.sed < "conftest.nl" >"conftest.out" 2>/dev/null || break
+    diff "conftest.out" "conftest.nl" >/dev/null 2>&1 || break
+    as_fn_arith $ac_count + 1 && ac_count=$as_val
+    if test $ac_count -gt ${ac_path_SED_max-0}; then
+      # Best one so far, save it but keep looking for a better one
+      ac_cv_path_SED="$ac_path_SED"
+      ac_path_SED_max=$ac_count
+    fi
+    # 10*(2^10) chars as input seems more than enough
+    test $ac_count -gt 10 && break
+  done
+  rm -f conftest.in conftest.tmp conftest.nl conftest.out;;
+esac
+
+      $ac_path_SED_found && break 3
+    done
+  done
+  done
+IFS=$as_save_IFS
+  if test -z "$ac_cv_path_SED"; then
+    as_fn_error $? "no acceptable sed could be found in \$PATH" "$LINENO" 5
+  fi
+else
+  ac_cv_path_SED=$SED
+fi
+
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_path_SED" >&5
+$as_echo "$ac_cv_path_SED" >&6; }
+ SED="$ac_cv_path_SED"
+  rm -f conftest.sed
+
+test -z "$SED" && SED=sed
+Xsed="$SED -e 1s/^X//"
+
+
+
+
+
+
+
+
+
+
+
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for fgrep" >&5
+$as_echo_n "checking for fgrep... " >&6; }
+if ${ac_cv_path_FGREP+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  if echo 'ab*c' | $GREP -F 'ab*c' >/dev/null 2>&1
+   then ac_cv_path_FGREP="$GREP -F"
+   else
+     if test -z "$FGREP"; then
+  ac_path_FGREP_found=false
+  # Loop through the user's path and test for each of PROGNAME-LIST
+  as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+for as_dir in $PATH$PATH_SEPARATOR/usr/xpg4/bin
+do
+  IFS=$as_save_IFS
+  test -z "$as_dir" && as_dir=.
+    for ac_prog in fgrep; do
+    for ac_exec_ext in '' $ac_executable_extensions; do
+      ac_path_FGREP="$as_dir/$ac_prog$ac_exec_ext"
+      as_fn_executable_p "$ac_path_FGREP" || continue
+# Check for GNU ac_path_FGREP and select it if it is found.
+  # Check for GNU $ac_path_FGREP
+case `"$ac_path_FGREP" --version 2>&1` in
+*GNU*)
+  ac_cv_path_FGREP="$ac_path_FGREP" ac_path_FGREP_found=:;;
+*)
+  ac_count=0
+  $as_echo_n 0123456789 >"conftest.in"
+  while :
+  do
+    cat "conftest.in" "conftest.in" >"conftest.tmp"
+    mv "conftest.tmp" "conftest.in"
+    cp "conftest.in" "conftest.nl"
+    $as_echo 'FGREP' >> "conftest.nl"
+    "$ac_path_FGREP" FGREP < "conftest.nl" >"conftest.out" 2>/dev/null || break
+    diff "conftest.out" "conftest.nl" >/dev/null 2>&1 || break
+    as_fn_arith $ac_count + 1 && ac_count=$as_val
+    if test $ac_count -gt ${ac_path_FGREP_max-0}; then
+      # Best one so far, save it but keep looking for a better one
+      ac_cv_path_FGREP="$ac_path_FGREP"
+      ac_path_FGREP_max=$ac_count
+    fi
+    # 10*(2^10) chars as input seems more than enough
+    test $ac_count -gt 10 && break
+  done
+  rm -f conftest.in conftest.tmp conftest.nl conftest.out;;
+esac
+
+      $ac_path_FGREP_found && break 3
+    done
+  done
+  done
+IFS=$as_save_IFS
+  if test -z "$ac_cv_path_FGREP"; then
+    as_fn_error $? "no acceptable fgrep could be found in $PATH$PATH_SEPARATOR/usr/xpg4/bin" "$LINENO" 5
+  fi
+else
+  ac_cv_path_FGREP=$FGREP
+fi
+
+   fi
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_path_FGREP" >&5
+$as_echo "$ac_cv_path_FGREP" >&6; }
+ FGREP="$ac_cv_path_FGREP"
+
+
+test -z "$GREP" && GREP=grep
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+# Check whether --with-gnu-ld was given.
+if test "${with_gnu_ld+set}" = set; then :
+  withval=$with_gnu_ld; test no = "$withval" || with_gnu_ld=yes
+else
+  with_gnu_ld=no
+fi
+
+ac_prog=ld
+if test yes = "$GCC"; then
+  # Check if gcc -print-prog-name=ld gives a path.
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for ld used by $CC" >&5
+$as_echo_n "checking for ld used by $CC... " >&6; }
+  case $host in
+  *-*-mingw*)
+    # gcc leaves a trailing carriage return, which upsets mingw
+    ac_prog=`($CC -print-prog-name=ld) 2>&5 | tr -d '\015'` ;;
+  *)
+    ac_prog=`($CC -print-prog-name=ld) 2>&5` ;;
+  esac
+  case $ac_prog in
+    # Accept absolute paths.
+    [\\/]* | ?:[\\/]*)
+      re_direlt='/[^/][^/]*/\.\./'
+      # Canonicalize the pathname of ld
+      ac_prog=`$ECHO "$ac_prog"| $SED 's%\\\\%/%g'`
+      while $ECHO "$ac_prog" | $GREP "$re_direlt" > /dev/null 2>&1; do
+	ac_prog=`$ECHO $ac_prog| $SED "s%$re_direlt%/%"`
+      done
+      test -z "$LD" && LD=$ac_prog
+      ;;
+  "")
+    # If it fails, then pretend we aren't using GCC.
+    ac_prog=ld
+    ;;
+  *)
+    # If it is relative, then search for the first ld in PATH.
+    with_gnu_ld=unknown
+    ;;
+  esac
+elif test yes = "$with_gnu_ld"; then
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for GNU ld" >&5
+$as_echo_n "checking for GNU ld... " >&6; }
+else
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for non-GNU ld" >&5
+$as_echo_n "checking for non-GNU ld... " >&6; }
+fi
+if ${lt_cv_path_LD+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  if test -z "$LD"; then
+  lt_save_ifs=$IFS; IFS=$PATH_SEPARATOR
+  for ac_dir in $PATH; do
+    IFS=$lt_save_ifs
+    test -z "$ac_dir" && ac_dir=.
+    if test -f "$ac_dir/$ac_prog" || test -f "$ac_dir/$ac_prog$ac_exeext"; then
+      lt_cv_path_LD=$ac_dir/$ac_prog
+      # Check to see if the program is GNU ld.  I'd rather use --version,
+      # but apparently some variants of GNU ld only accept -v.
+      # Break only if it was the GNU/non-GNU ld that we prefer.
+      case `"$lt_cv_path_LD" -v 2>&1 </dev/null` in
+      *GNU* | *'with BFD'*)
+	test no != "$with_gnu_ld" && break
+	;;
+      *)
+	test yes != "$with_gnu_ld" && break
+	;;
+      esac
+    fi
+  done
+  IFS=$lt_save_ifs
+else
+  lt_cv_path_LD=$LD # Let the user override the test with a path.
+fi
+fi
+
+LD=$lt_cv_path_LD
+if test -n "$LD"; then
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $LD" >&5
+$as_echo "$LD" >&6; }
+else
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+fi
+test -z "$LD" && as_fn_error $? "no acceptable ld found in \$PATH" "$LINENO" 5
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking if the linker ($LD) is GNU ld" >&5
+$as_echo_n "checking if the linker ($LD) is GNU ld... " >&6; }
+if ${lt_cv_prog_gnu_ld+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  # I'd rather use --version here, but apparently some GNU lds only accept -v.
+case `$LD -v 2>&1 </dev/null` in
+*GNU* | *'with BFD'*)
+  lt_cv_prog_gnu_ld=yes
+  ;;
+*)
+  lt_cv_prog_gnu_ld=no
+  ;;
+esac
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $lt_cv_prog_gnu_ld" >&5
+$as_echo "$lt_cv_prog_gnu_ld" >&6; }
+with_gnu_ld=$lt_cv_prog_gnu_ld
+
+
+
+
+
+
+
+
+
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for BSD- or MS-compatible name lister (nm)" >&5
+$as_echo_n "checking for BSD- or MS-compatible name lister (nm)... " >&6; }
+if ${lt_cv_path_NM+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  if test -n "$NM"; then
+  # Let the user override the test.
+  lt_cv_path_NM=$NM
+else
+  lt_nm_to_check=${ac_tool_prefix}nm
+  if test -n "$ac_tool_prefix" && test "$build" = "$host"; then
+    lt_nm_to_check="$lt_nm_to_check nm"
+  fi
+  for lt_tmp_nm in $lt_nm_to_check; do
+    lt_save_ifs=$IFS; IFS=$PATH_SEPARATOR
+    for ac_dir in $PATH /usr/ccs/bin/elf /usr/ccs/bin /usr/ucb /bin; do
+      IFS=$lt_save_ifs
+      test -z "$ac_dir" && ac_dir=.
+      tmp_nm=$ac_dir/$lt_tmp_nm
+      if test -f "$tmp_nm" || test -f "$tmp_nm$ac_exeext"; then
+	# Check to see if the nm accepts a BSD-compat flag.
+	# Adding the 'sed 1q' prevents false positives on HP-UX, which says:
+	#   nm: unknown option "B" ignored
+	# Tru64's nm complains that /dev/null is an invalid object file
+	# MSYS converts /dev/null to NUL, MinGW nm treats NUL as empty
+	case $build_os in
+	mingw*) lt_bad_file=conftest.nm/nofile ;;
+	*) lt_bad_file=/dev/null ;;
+	esac
+	case `"$tmp_nm" -B $lt_bad_file 2>&1 | sed '1q'` in
+	*$lt_bad_file* | *'Invalid file or object type'*)
+	  lt_cv_path_NM="$tmp_nm -B"
+	  break 2
+	  ;;
+	*)
+	  case `"$tmp_nm" -p /dev/null 2>&1 | sed '1q'` in
+	  */dev/null*)
+	    lt_cv_path_NM="$tmp_nm -p"
+	    break 2
+	    ;;
+	  *)
+	    lt_cv_path_NM=${lt_cv_path_NM="$tmp_nm"} # keep the first match, but
+	    continue # so that we can try to find one that supports BSD flags
+	    ;;
+	  esac
+	  ;;
+	esac
+      fi
+    done
+    IFS=$lt_save_ifs
+  done
+  : ${lt_cv_path_NM=no}
+fi
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $lt_cv_path_NM" >&5
+$as_echo "$lt_cv_path_NM" >&6; }
+if test no != "$lt_cv_path_NM"; then
+  NM=$lt_cv_path_NM
+else
+  # Didn't find any BSD compatible name lister, look for dumpbin.
+  if test -n "$DUMPBIN"; then :
+    # Let the user override the test.
+  else
+    if test -n "$ac_tool_prefix"; then
+  for ac_prog in dumpbin "link -dump"
+  do
+    # Extract the first word of "$ac_tool_prefix$ac_prog", so it can be a program name with args.
+set dummy $ac_tool_prefix$ac_prog; ac_word=$2
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
+$as_echo_n "checking for $ac_word... " >&6; }
+if ${ac_cv_prog_DUMPBIN+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  if test -n "$DUMPBIN"; then
+  ac_cv_prog_DUMPBIN="$DUMPBIN" # Let the user override the test.
+else
+as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+for as_dir in $PATH
+do
+  IFS=$as_save_IFS
+  test -z "$as_dir" && as_dir=.
+    for ac_exec_ext in '' $ac_executable_extensions; do
+  if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
+    ac_cv_prog_DUMPBIN="$ac_tool_prefix$ac_prog"
+    $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
+    break 2
+  fi
+done
+  done
+IFS=$as_save_IFS
+
+fi
+fi
+DUMPBIN=$ac_cv_prog_DUMPBIN
+if test -n "$DUMPBIN"; then
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $DUMPBIN" >&5
+$as_echo "$DUMPBIN" >&6; }
+else
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+fi
+
+
+    test -n "$DUMPBIN" && break
+  done
+fi
+if test -z "$DUMPBIN"; then
+  ac_ct_DUMPBIN=$DUMPBIN
+  for ac_prog in dumpbin "link -dump"
+do
+  # Extract the first word of "$ac_prog", so it can be a program name with args.
+set dummy $ac_prog; ac_word=$2
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
+$as_echo_n "checking for $ac_word... " >&6; }
+if ${ac_cv_prog_ac_ct_DUMPBIN+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  if test -n "$ac_ct_DUMPBIN"; then
+  ac_cv_prog_ac_ct_DUMPBIN="$ac_ct_DUMPBIN" # Let the user override the test.
+else
+as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+for as_dir in $PATH
+do
+  IFS=$as_save_IFS
+  test -z "$as_dir" && as_dir=.
+    for ac_exec_ext in '' $ac_executable_extensions; do
+  if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
+    ac_cv_prog_ac_ct_DUMPBIN="$ac_prog"
+    $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
+    break 2
+  fi
+done
+  done
+IFS=$as_save_IFS
+
+fi
+fi
+ac_ct_DUMPBIN=$ac_cv_prog_ac_ct_DUMPBIN
+if test -n "$ac_ct_DUMPBIN"; then
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_ct_DUMPBIN" >&5
+$as_echo "$ac_ct_DUMPBIN" >&6; }
+else
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+fi
+
+
+  test -n "$ac_ct_DUMPBIN" && break
+done
+
+  if test "x$ac_ct_DUMPBIN" = x; then
+    DUMPBIN=":"
+  else
+    case $cross_compiling:$ac_tool_warned in
+yes:)
+{ $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: using cross tools not prefixed with host triplet" >&5
+$as_echo "$as_me: WARNING: using cross tools not prefixed with host triplet" >&2;}
+ac_tool_warned=yes ;;
+esac
+    DUMPBIN=$ac_ct_DUMPBIN
+  fi
+fi
+
+    case `$DUMPBIN -symbols -headers /dev/null 2>&1 | sed '1q'` in
+    *COFF*)
+      DUMPBIN="$DUMPBIN -symbols -headers"
+      ;;
+    *)
+      DUMPBIN=:
+      ;;
+    esac
+  fi
+
+  if test : != "$DUMPBIN"; then
+    NM=$DUMPBIN
+  fi
+fi
+test -z "$NM" && NM=nm
+
+
+
+
+
+
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking the name lister ($NM) interface" >&5
+$as_echo_n "checking the name lister ($NM) interface... " >&6; }
+if ${lt_cv_nm_interface+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  lt_cv_nm_interface="BSD nm"
+  echo "int some_variable = 0;" > conftest.$ac_ext
+  (eval echo "\"\$as_me:$LINENO: $ac_compile\"" >&5)
+  (eval "$ac_compile" 2>conftest.err)
+  cat conftest.err >&5
+  (eval echo "\"\$as_me:$LINENO: $NM \\\"conftest.$ac_objext\\\"\"" >&5)
+  (eval "$NM \"conftest.$ac_objext\"" 2>conftest.err > conftest.out)
+  cat conftest.err >&5
+  (eval echo "\"\$as_me:$LINENO: output\"" >&5)
+  cat conftest.out >&5
+  if $GREP 'External.*some_variable' conftest.out > /dev/null; then
+    lt_cv_nm_interface="MS dumpbin"
+  fi
+  rm -f conftest*
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $lt_cv_nm_interface" >&5
+$as_echo "$lt_cv_nm_interface" >&6; }
+
+# find the maximum length of command line arguments
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking the maximum length of command line arguments" >&5
+$as_echo_n "checking the maximum length of command line arguments... " >&6; }
+if ${lt_cv_sys_max_cmd_len+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+    i=0
+  teststring=ABCD
+
+  case $build_os in
+  msdosdjgpp*)
+    # On DJGPP, this test can blow up pretty badly due to problems in libc
+    # (any single argument exceeding 2000 bytes causes a buffer overrun
+    # during glob expansion).  Even if it were fixed, the result of this
+    # check would be larger than it should be.
+    lt_cv_sys_max_cmd_len=12288;    # 12K is about right
+    ;;
+
+  gnu*)
+    # Under GNU Hurd, this test is not required because there is
+    # no limit to the length of command line arguments.
+    # Libtool will interpret -1 as no limit whatsoever
+    lt_cv_sys_max_cmd_len=-1;
+    ;;
+
+  cygwin* | mingw* | cegcc*)
+    # On Win9x/ME, this test blows up -- it succeeds, but takes
+    # about 5 minutes as the teststring grows exponentially.
+    # Worse, since 9x/ME are not pre-emptively multitasking,
+    # you end up with a "frozen" computer, even though with patience
+    # the test eventually succeeds (with a max line length of 256k).
+    # Instead, let's just punt: use the minimum linelength reported by
+    # all of the supported platforms: 8192 (on NT/2K/XP).
+    lt_cv_sys_max_cmd_len=8192;
+    ;;
+
+  mint*)
+    # On MiNT this can take a long time and run out of memory.
+    lt_cv_sys_max_cmd_len=8192;
+    ;;
+
+  amigaos*)
+    # On AmigaOS with pdksh, this test takes hours, literally.
+    # So we just punt and use a minimum line length of 8192.
+    lt_cv_sys_max_cmd_len=8192;
+    ;;
+
+  bitrig* | darwin* | dragonfly* | freebsd* | netbsd* | openbsd*)
+    # This has been around since 386BSD, at least.  Likely further.
+    if test -x /sbin/sysctl; then
+      lt_cv_sys_max_cmd_len=`/sbin/sysctl -n kern.argmax`
+    elif test -x /usr/sbin/sysctl; then
+      lt_cv_sys_max_cmd_len=`/usr/sbin/sysctl -n kern.argmax`
+    else
+      lt_cv_sys_max_cmd_len=65536	# usable default for all BSDs
+    fi
+    # And add a safety zone
+    lt_cv_sys_max_cmd_len=`expr $lt_cv_sys_max_cmd_len \/ 4`
+    lt_cv_sys_max_cmd_len=`expr $lt_cv_sys_max_cmd_len \* 3`
+    ;;
+
+  interix*)
+    # We know the value 262144 and hardcode it with a safety zone (like BSD)
+    lt_cv_sys_max_cmd_len=196608
+    ;;
+
+  os2*)
+    # The test takes a long time on OS/2.
+    lt_cv_sys_max_cmd_len=8192
+    ;;
+
+  osf*)
+    # Dr. Hans Ekkehard Plesser reports seeing a kernel panic running configure
+    # due to this test when exec_disable_arg_limit is 1 on Tru64. It is not
+    # nice to cause kernel panics so lets avoid the loop below.
+    # First set a reasonable default.
+    lt_cv_sys_max_cmd_len=16384
+    #
+    if test -x /sbin/sysconfig; then
+      case `/sbin/sysconfig -q proc exec_disable_arg_limit` in
+        *1*) lt_cv_sys_max_cmd_len=-1 ;;
+      esac
+    fi
+    ;;
+  sco3.2v5*)
+    lt_cv_sys_max_cmd_len=102400
+    ;;
+  sysv5* | sco5v6* | sysv4.2uw2*)
+    kargmax=`grep ARG_MAX /etc/conf/cf.d/stune 2>/dev/null`
+    if test -n "$kargmax"; then
+      lt_cv_sys_max_cmd_len=`echo $kargmax | sed 's/.*[	 ]//'`
+    else
+      lt_cv_sys_max_cmd_len=32768
+    fi
+    ;;
+  *)
+    lt_cv_sys_max_cmd_len=`(getconf ARG_MAX) 2> /dev/null`
+    if test -n "$lt_cv_sys_max_cmd_len" && \
+       test undefined != "$lt_cv_sys_max_cmd_len"; then
+      lt_cv_sys_max_cmd_len=`expr $lt_cv_sys_max_cmd_len \/ 4`
+      lt_cv_sys_max_cmd_len=`expr $lt_cv_sys_max_cmd_len \* 3`
+    else
+      # Make teststring a little bigger before we do anything with it.
+      # a 1K string should be a reasonable start.
+      for i in 1 2 3 4 5 6 7 8; do
+        teststring=$teststring$teststring
+      done
+      SHELL=${SHELL-${CONFIG_SHELL-/bin/sh}}
+      # If test is not a shell built-in, we'll probably end up computing a
+      # maximum length that is only half of the actual maximum length, but
+      # we can't tell.
+      while { test X`env echo "$teststring$teststring" 2>/dev/null` \
+	         = "X$teststring$teststring"; } >/dev/null 2>&1 &&
+	      test 17 != "$i" # 1/2 MB should be enough
+      do
+        i=`expr $i + 1`
+        teststring=$teststring$teststring
+      done
+      # Only check the string length outside the loop.
+      lt_cv_sys_max_cmd_len=`expr "X$teststring" : ".*" 2>&1`
+      teststring=
+      # Add a significant safety factor because C++ compilers can tack on
+      # massive amounts of additional arguments before passing them to the
+      # linker.  It appears as though 1/2 is a usable value.
+      lt_cv_sys_max_cmd_len=`expr $lt_cv_sys_max_cmd_len \/ 2`
+    fi
+    ;;
+  esac
+
+fi
+
+if test -n "$lt_cv_sys_max_cmd_len"; then
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $lt_cv_sys_max_cmd_len" >&5
+$as_echo "$lt_cv_sys_max_cmd_len" >&6; }
+else
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: none" >&5
+$as_echo "none" >&6; }
+fi
+max_cmd_len=$lt_cv_sys_max_cmd_len
+
+
+
+
+
+
+: ${CP="cp -f"}
+: ${MV="mv -f"}
+: ${RM="rm -f"}
+
+if ( (MAIL=60; unset MAIL) || exit) >/dev/null 2>&1; then
+  lt_unset=unset
+else
+  lt_unset=false
+fi
+
+
+
+
+
+# test EBCDIC or ASCII
+case `echo X|tr X '\101'` in
+ A) # ASCII based system
+    # \n is not interpreted correctly by Solaris 8 /usr/ucb/tr
+  lt_SP2NL='tr \040 \012'
+  lt_NL2SP='tr \015\012 \040\040'
+  ;;
+ *) # EBCDIC based system
+  lt_SP2NL='tr \100 \n'
+  lt_NL2SP='tr \r\n \100\100'
+  ;;
+esac
+
+
+
+
+
+
+
+
+
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking how to convert $build file names to $host format" >&5
+$as_echo_n "checking how to convert $build file names to $host format... " >&6; }
+if ${lt_cv_to_host_file_cmd+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  case $host in
+  *-*-mingw* )
+    case $build in
+      *-*-mingw* ) # actually msys
+        lt_cv_to_host_file_cmd=func_convert_file_msys_to_w32
+        ;;
+      *-*-cygwin* )
+        lt_cv_to_host_file_cmd=func_convert_file_cygwin_to_w32
+        ;;
+      * ) # otherwise, assume *nix
+        lt_cv_to_host_file_cmd=func_convert_file_nix_to_w32
+        ;;
+    esac
+    ;;
+  *-*-cygwin* )
+    case $build in
+      *-*-mingw* ) # actually msys
+        lt_cv_to_host_file_cmd=func_convert_file_msys_to_cygwin
+        ;;
+      *-*-cygwin* )
+        lt_cv_to_host_file_cmd=func_convert_file_noop
+        ;;
+      * ) # otherwise, assume *nix
+        lt_cv_to_host_file_cmd=func_convert_file_nix_to_cygwin
+        ;;
+    esac
+    ;;
+  * ) # unhandled hosts (and "normal" native builds)
+    lt_cv_to_host_file_cmd=func_convert_file_noop
+    ;;
+esac
+
+fi
+
+to_host_file_cmd=$lt_cv_to_host_file_cmd
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $lt_cv_to_host_file_cmd" >&5
+$as_echo "$lt_cv_to_host_file_cmd" >&6; }
+
+
+
+
+
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking how to convert $build file names to toolchain format" >&5
+$as_echo_n "checking how to convert $build file names to toolchain format... " >&6; }
+if ${lt_cv_to_tool_file_cmd+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  #assume ordinary cross tools, or native build.
+lt_cv_to_tool_file_cmd=func_convert_file_noop
+case $host in
+  *-*-mingw* )
+    case $build in
+      *-*-mingw* ) # actually msys
+        lt_cv_to_tool_file_cmd=func_convert_file_msys_to_w32
+        ;;
+    esac
+    ;;
+esac
+
+fi
+
+to_tool_file_cmd=$lt_cv_to_tool_file_cmd
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $lt_cv_to_tool_file_cmd" >&5
+$as_echo "$lt_cv_to_tool_file_cmd" >&6; }
+
+
+
+
+
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $LD option to reload object files" >&5
+$as_echo_n "checking for $LD option to reload object files... " >&6; }
+if ${lt_cv_ld_reload_flag+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  lt_cv_ld_reload_flag='-r'
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $lt_cv_ld_reload_flag" >&5
+$as_echo "$lt_cv_ld_reload_flag" >&6; }
+reload_flag=$lt_cv_ld_reload_flag
+case $reload_flag in
+"" | " "*) ;;
+*) reload_flag=" $reload_flag" ;;
+esac
+reload_cmds='$LD$reload_flag -o $output$reload_objs'
+case $host_os in
+  cygwin* | mingw* | pw32* | cegcc*)
+    if test yes != "$GCC"; then
+      reload_cmds=false
+    fi
+    ;;
+  darwin*)
+    if test yes = "$GCC"; then
+      reload_cmds='$LTCC $LTCFLAGS -nostdlib $wl-r -o $output$reload_objs'
+    else
+      reload_cmds='$LD$reload_flag -o $output$reload_objs'
+    fi
+    ;;
+esac
+
+
+
+
+
+
+
+
+
+if test -n "$ac_tool_prefix"; then
+  # Extract the first word of "${ac_tool_prefix}objdump", so it can be a program name with args.
+set dummy ${ac_tool_prefix}objdump; ac_word=$2
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
+$as_echo_n "checking for $ac_word... " >&6; }
+if ${ac_cv_prog_OBJDUMP+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  if test -n "$OBJDUMP"; then
+  ac_cv_prog_OBJDUMP="$OBJDUMP" # Let the user override the test.
+else
+as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+for as_dir in $PATH
+do
+  IFS=$as_save_IFS
+  test -z "$as_dir" && as_dir=.
+    for ac_exec_ext in '' $ac_executable_extensions; do
+  if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
+    ac_cv_prog_OBJDUMP="${ac_tool_prefix}objdump"
+    $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
+    break 2
+  fi
+done
+  done
+IFS=$as_save_IFS
+
+fi
+fi
+OBJDUMP=$ac_cv_prog_OBJDUMP
+if test -n "$OBJDUMP"; then
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $OBJDUMP" >&5
+$as_echo "$OBJDUMP" >&6; }
+else
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+fi
+
+
+fi
+if test -z "$ac_cv_prog_OBJDUMP"; then
+  ac_ct_OBJDUMP=$OBJDUMP
+  # Extract the first word of "objdump", so it can be a program name with args.
+set dummy objdump; ac_word=$2
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
+$as_echo_n "checking for $ac_word... " >&6; }
+if ${ac_cv_prog_ac_ct_OBJDUMP+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  if test -n "$ac_ct_OBJDUMP"; then
+  ac_cv_prog_ac_ct_OBJDUMP="$ac_ct_OBJDUMP" # Let the user override the test.
+else
+as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+for as_dir in $PATH
+do
+  IFS=$as_save_IFS
+  test -z "$as_dir" && as_dir=.
+    for ac_exec_ext in '' $ac_executable_extensions; do
+  if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
+    ac_cv_prog_ac_ct_OBJDUMP="objdump"
+    $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
+    break 2
+  fi
+done
+  done
+IFS=$as_save_IFS
+
+fi
+fi
+ac_ct_OBJDUMP=$ac_cv_prog_ac_ct_OBJDUMP
+if test -n "$ac_ct_OBJDUMP"; then
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_ct_OBJDUMP" >&5
+$as_echo "$ac_ct_OBJDUMP" >&6; }
+else
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+fi
+
+  if test "x$ac_ct_OBJDUMP" = x; then
+    OBJDUMP="false"
+  else
+    case $cross_compiling:$ac_tool_warned in
+yes:)
+{ $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: using cross tools not prefixed with host triplet" >&5
+$as_echo "$as_me: WARNING: using cross tools not prefixed with host triplet" >&2;}
+ac_tool_warned=yes ;;
+esac
+    OBJDUMP=$ac_ct_OBJDUMP
+  fi
+else
+  OBJDUMP="$ac_cv_prog_OBJDUMP"
+fi
+
+test -z "$OBJDUMP" && OBJDUMP=objdump
+
+
+
+
+
+
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking how to recognize dependent libraries" >&5
+$as_echo_n "checking how to recognize dependent libraries... " >&6; }
+if ${lt_cv_deplibs_check_method+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  lt_cv_file_magic_cmd='$MAGIC_CMD'
+lt_cv_file_magic_test_file=
+lt_cv_deplibs_check_method='unknown'
+# Need to set the preceding variable on all platforms that support
+# interlibrary dependencies.
+# 'none' -- dependencies not supported.
+# 'unknown' -- same as none, but documents that we really don't know.
+# 'pass_all' -- all dependencies passed with no checks.
+# 'test_compile' -- check by making test program.
+# 'file_magic [[regex]]' -- check by looking for files in library path
+# that responds to the $file_magic_cmd with a given extended regex.
+# If you have 'file' or equivalent on your system and you're not sure
+# whether 'pass_all' will *always* work, you probably want this one.
+
+case $host_os in
+aix[4-9]*)
+  lt_cv_deplibs_check_method=pass_all
+  ;;
+
+beos*)
+  lt_cv_deplibs_check_method=pass_all
+  ;;
+
+bsdi[45]*)
+  lt_cv_deplibs_check_method='file_magic ELF [0-9][0-9]*-bit [ML]SB (shared object|dynamic lib)'
+  lt_cv_file_magic_cmd='/usr/bin/file -L'
+  lt_cv_file_magic_test_file=/shlib/libc.so
+  ;;
+
+cygwin*)
+  # func_win32_libid is a shell function defined in ltmain.sh
+  lt_cv_deplibs_check_method='file_magic ^x86 archive import|^x86 DLL'
+  lt_cv_file_magic_cmd='func_win32_libid'
+  ;;
+
+mingw* | pw32*)
+  # Base MSYS/MinGW do not provide the 'file' command needed by
+  # func_win32_libid shell function, so use a weaker test based on 'objdump',
+  # unless we find 'file', for example because we are cross-compiling.
+  if ( file / ) >/dev/null 2>&1; then
+    lt_cv_deplibs_check_method='file_magic ^x86 archive import|^x86 DLL'
+    lt_cv_file_magic_cmd='func_win32_libid'
+  else
+    # Keep this pattern in sync with the one in func_win32_libid.
+    lt_cv_deplibs_check_method='file_magic file format (pei*-i386(.*architecture: i386)?|pe-arm-wince|pe-x86-64)'
+    lt_cv_file_magic_cmd='$OBJDUMP -f'
+  fi
+  ;;
+
+cegcc*)
+  # use the weaker test based on 'objdump'. See mingw*.
+  lt_cv_deplibs_check_method='file_magic file format pe-arm-.*little(.*architecture: arm)?'
+  lt_cv_file_magic_cmd='$OBJDUMP -f'
+  ;;
+
+darwin* | rhapsody*)
+  lt_cv_deplibs_check_method=pass_all
+  ;;
+
+freebsd* | dragonfly*)
+  if echo __ELF__ | $CC -E - | $GREP __ELF__ > /dev/null; then
+    case $host_cpu in
+    i*86 )
+      # Not sure whether the presence of OpenBSD here was a mistake.
+      # Let's accept both of them until this is cleared up.
+      lt_cv_deplibs_check_method='file_magic (FreeBSD|OpenBSD|DragonFly)/i[3-9]86 (compact )?demand paged shared library'
+      lt_cv_file_magic_cmd=/usr/bin/file
+      lt_cv_file_magic_test_file=`echo /usr/lib/libc.so.*`
+      ;;
+    esac
+  else
+    lt_cv_deplibs_check_method=pass_all
+  fi
+  ;;
+
+haiku*)
+  lt_cv_deplibs_check_method=pass_all
+  ;;
+
+hpux10.20* | hpux11*)
+  lt_cv_file_magic_cmd=/usr/bin/file
+  case $host_cpu in
+  ia64*)
+    lt_cv_deplibs_check_method='file_magic (s[0-9][0-9][0-9]|ELF-[0-9][0-9]) shared object file - IA64'
+    lt_cv_file_magic_test_file=/usr/lib/hpux32/libc.so
+    ;;
+  hppa*64*)
+    lt_cv_deplibs_check_method='file_magic (s[0-9][0-9][0-9]|ELF[ -][0-9][0-9])(-bit)?( [LM]SB)? shared object( file)?[, -]* PA-RISC [0-9]\.[0-9]'
+    lt_cv_file_magic_test_file=/usr/lib/pa20_64/libc.sl
+    ;;
+  *)
+    lt_cv_deplibs_check_method='file_magic (s[0-9][0-9][0-9]|PA-RISC[0-9]\.[0-9]) shared library'
+    lt_cv_file_magic_test_file=/usr/lib/libc.sl
+    ;;
+  esac
+  ;;
+
+interix[3-9]*)
+  # PIC code is broken on Interix 3.x, that's why |\.a not |_pic\.a here
+  lt_cv_deplibs_check_method='match_pattern /lib[^/]+(\.so|\.a)$'
+  ;;
+
+irix5* | irix6* | nonstopux*)
+  case $LD in
+  *-32|*"-32 ") libmagic=32-bit;;
+  *-n32|*"-n32 ") libmagic=N32;;
+  *-64|*"-64 ") libmagic=64-bit;;
+  *) libmagic=never-match;;
+  esac
+  lt_cv_deplibs_check_method=pass_all
+  ;;
+
+# This must be glibc/ELF.
+linux* | k*bsd*-gnu | kopensolaris*-gnu | gnu*)
+  lt_cv_deplibs_check_method=pass_all
+  ;;
+
+netbsd*)
+  if echo __ELF__ | $CC -E - | $GREP __ELF__ > /dev/null; then
+    lt_cv_deplibs_check_method='match_pattern /lib[^/]+(\.so\.[0-9]+\.[0-9]+|_pic\.a)$'
+  else
+    lt_cv_deplibs_check_method='match_pattern /lib[^/]+(\.so|_pic\.a)$'
+  fi
+  ;;
+
+newos6*)
+  lt_cv_deplibs_check_method='file_magic ELF [0-9][0-9]*-bit [ML]SB (executable|dynamic lib)'
+  lt_cv_file_magic_cmd=/usr/bin/file
+  lt_cv_file_magic_test_file=/usr/lib/libnls.so
+  ;;
+
+*nto* | *qnx*)
+  lt_cv_deplibs_check_method=pass_all
+  ;;
+
+openbsd* | bitrig*)
+  if test -z "`echo __ELF__ | $CC -E - | $GREP __ELF__`"; then
+    lt_cv_deplibs_check_method='match_pattern /lib[^/]+(\.so\.[0-9]+\.[0-9]+|\.so|_pic\.a)$'
+  else
+    lt_cv_deplibs_check_method='match_pattern /lib[^/]+(\.so\.[0-9]+\.[0-9]+|_pic\.a)$'
+  fi
+  ;;
+
+osf3* | osf4* | osf5*)
+  lt_cv_deplibs_check_method=pass_all
+  ;;
+
+rdos*)
+  lt_cv_deplibs_check_method=pass_all
+  ;;
+
+solaris*)
+  lt_cv_deplibs_check_method=pass_all
+  ;;
+
+sysv5* | sco3.2v5* | sco5v6* | unixware* | OpenUNIX* | sysv4*uw2*)
+  lt_cv_deplibs_check_method=pass_all
+  ;;
+
+sysv4 | sysv4.3*)
+  case $host_vendor in
+  motorola)
+    lt_cv_deplibs_check_method='file_magic ELF [0-9][0-9]*-bit [ML]SB (shared object|dynamic lib) M[0-9][0-9]* Version [0-9]'
+    lt_cv_file_magic_test_file=`echo /usr/lib/libc.so*`
+    ;;
+  ncr)
+    lt_cv_deplibs_check_method=pass_all
+    ;;
+  sequent)
+    lt_cv_file_magic_cmd='/bin/file'
+    lt_cv_deplibs_check_method='file_magic ELF [0-9][0-9]*-bit [LM]SB (shared object|dynamic lib )'
+    ;;
+  sni)
+    lt_cv_file_magic_cmd='/bin/file'
+    lt_cv_deplibs_check_method="file_magic ELF [0-9][0-9]*-bit [LM]SB dynamic lib"
+    lt_cv_file_magic_test_file=/lib/libc.so
+    ;;
+  siemens)
+    lt_cv_deplibs_check_method=pass_all
+    ;;
+  pc)
+    lt_cv_deplibs_check_method=pass_all
+    ;;
+  esac
+  ;;
+
+tpf*)
+  lt_cv_deplibs_check_method=pass_all
+  ;;
+os2*)
+  lt_cv_deplibs_check_method=pass_all
+  ;;
+esac
+
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $lt_cv_deplibs_check_method" >&5
+$as_echo "$lt_cv_deplibs_check_method" >&6; }
+
+file_magic_glob=
+want_nocaseglob=no
+if test "$build" = "$host"; then
+  case $host_os in
+  mingw* | pw32*)
+    if ( shopt | grep nocaseglob ) >/dev/null 2>&1; then
+      want_nocaseglob=yes
+    else
+      file_magic_glob=`echo aAbBcCdDeEfFgGhHiIjJkKlLmMnNoOpPqQrRsStTuUvVwWxXyYzZ | $SED -e "s/\(..\)/s\/[\1]\/[\1]\/g;/g"`
+    fi
+    ;;
+  esac
+fi
+
+file_magic_cmd=$lt_cv_file_magic_cmd
+deplibs_check_method=$lt_cv_deplibs_check_method
+test -z "$deplibs_check_method" && deplibs_check_method=unknown
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+if test -n "$ac_tool_prefix"; then
+  # Extract the first word of "${ac_tool_prefix}dlltool", so it can be a program name with args.
+set dummy ${ac_tool_prefix}dlltool; ac_word=$2
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
+$as_echo_n "checking for $ac_word... " >&6; }
+if ${ac_cv_prog_DLLTOOL+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  if test -n "$DLLTOOL"; then
+  ac_cv_prog_DLLTOOL="$DLLTOOL" # Let the user override the test.
+else
+as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+for as_dir in $PATH
+do
+  IFS=$as_save_IFS
+  test -z "$as_dir" && as_dir=.
+    for ac_exec_ext in '' $ac_executable_extensions; do
+  if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
+    ac_cv_prog_DLLTOOL="${ac_tool_prefix}dlltool"
+    $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
+    break 2
+  fi
+done
+  done
+IFS=$as_save_IFS
+
+fi
+fi
+DLLTOOL=$ac_cv_prog_DLLTOOL
+if test -n "$DLLTOOL"; then
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $DLLTOOL" >&5
+$as_echo "$DLLTOOL" >&6; }
+else
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+fi
+
+
+fi
+if test -z "$ac_cv_prog_DLLTOOL"; then
+  ac_ct_DLLTOOL=$DLLTOOL
+  # Extract the first word of "dlltool", so it can be a program name with args.
+set dummy dlltool; ac_word=$2
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
+$as_echo_n "checking for $ac_word... " >&6; }
+if ${ac_cv_prog_ac_ct_DLLTOOL+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  if test -n "$ac_ct_DLLTOOL"; then
+  ac_cv_prog_ac_ct_DLLTOOL="$ac_ct_DLLTOOL" # Let the user override the test.
+else
+as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+for as_dir in $PATH
+do
+  IFS=$as_save_IFS
+  test -z "$as_dir" && as_dir=.
+    for ac_exec_ext in '' $ac_executable_extensions; do
+  if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
+    ac_cv_prog_ac_ct_DLLTOOL="dlltool"
+    $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
+    break 2
+  fi
+done
+  done
+IFS=$as_save_IFS
+
+fi
+fi
+ac_ct_DLLTOOL=$ac_cv_prog_ac_ct_DLLTOOL
+if test -n "$ac_ct_DLLTOOL"; then
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_ct_DLLTOOL" >&5
+$as_echo "$ac_ct_DLLTOOL" >&6; }
+else
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+fi
+
+  if test "x$ac_ct_DLLTOOL" = x; then
+    DLLTOOL="false"
+  else
+    case $cross_compiling:$ac_tool_warned in
+yes:)
+{ $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: using cross tools not prefixed with host triplet" >&5
+$as_echo "$as_me: WARNING: using cross tools not prefixed with host triplet" >&2;}
+ac_tool_warned=yes ;;
+esac
+    DLLTOOL=$ac_ct_DLLTOOL
+  fi
+else
+  DLLTOOL="$ac_cv_prog_DLLTOOL"
+fi
+
+test -z "$DLLTOOL" && DLLTOOL=dlltool
+
+
+
+
+
+
+
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking how to associate runtime and link libraries" >&5
+$as_echo_n "checking how to associate runtime and link libraries... " >&6; }
+if ${lt_cv_sharedlib_from_linklib_cmd+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  lt_cv_sharedlib_from_linklib_cmd='unknown'
+
+case $host_os in
+cygwin* | mingw* | pw32* | cegcc*)
+  # two different shell functions defined in ltmain.sh;
+  # decide which one to use based on capabilities of $DLLTOOL
+  case `$DLLTOOL --help 2>&1` in
+  *--identify-strict*)
+    lt_cv_sharedlib_from_linklib_cmd=func_cygming_dll_for_implib
+    ;;
+  *)
+    lt_cv_sharedlib_from_linklib_cmd=func_cygming_dll_for_implib_fallback
+    ;;
+  esac
+  ;;
+*)
+  # fallback: assume linklib IS sharedlib
+  lt_cv_sharedlib_from_linklib_cmd=$ECHO
+  ;;
+esac
+
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $lt_cv_sharedlib_from_linklib_cmd" >&5
+$as_echo "$lt_cv_sharedlib_from_linklib_cmd" >&6; }
+sharedlib_from_linklib_cmd=$lt_cv_sharedlib_from_linklib_cmd
+test -z "$sharedlib_from_linklib_cmd" && sharedlib_from_linklib_cmd=$ECHO
+
+
+
+
+
+
+
+if test -n "$ac_tool_prefix"; then
+  for ac_prog in ar
+  do
+    # Extract the first word of "$ac_tool_prefix$ac_prog", so it can be a program name with args.
+set dummy $ac_tool_prefix$ac_prog; ac_word=$2
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
+$as_echo_n "checking for $ac_word... " >&6; }
+if ${ac_cv_prog_AR+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  if test -n "$AR"; then
+  ac_cv_prog_AR="$AR" # Let the user override the test.
+else
+as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+for as_dir in $PATH
+do
+  IFS=$as_save_IFS
+  test -z "$as_dir" && as_dir=.
+    for ac_exec_ext in '' $ac_executable_extensions; do
+  if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
+    ac_cv_prog_AR="$ac_tool_prefix$ac_prog"
+    $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
+    break 2
+  fi
+done
+  done
+IFS=$as_save_IFS
+
+fi
+fi
+AR=$ac_cv_prog_AR
+if test -n "$AR"; then
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $AR" >&5
+$as_echo "$AR" >&6; }
+else
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+fi
+
+
+    test -n "$AR" && break
+  done
+fi
+if test -z "$AR"; then
+  ac_ct_AR=$AR
+  for ac_prog in ar
+do
+  # Extract the first word of "$ac_prog", so it can be a program name with args.
+set dummy $ac_prog; ac_word=$2
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
+$as_echo_n "checking for $ac_word... " >&6; }
+if ${ac_cv_prog_ac_ct_AR+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  if test -n "$ac_ct_AR"; then
+  ac_cv_prog_ac_ct_AR="$ac_ct_AR" # Let the user override the test.
+else
+as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+for as_dir in $PATH
+do
+  IFS=$as_save_IFS
+  test -z "$as_dir" && as_dir=.
+    for ac_exec_ext in '' $ac_executable_extensions; do
+  if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
+    ac_cv_prog_ac_ct_AR="$ac_prog"
+    $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
+    break 2
+  fi
+done
+  done
+IFS=$as_save_IFS
+
+fi
+fi
+ac_ct_AR=$ac_cv_prog_ac_ct_AR
+if test -n "$ac_ct_AR"; then
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_ct_AR" >&5
+$as_echo "$ac_ct_AR" >&6; }
+else
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+fi
+
+
+  test -n "$ac_ct_AR" && break
+done
+
+  if test "x$ac_ct_AR" = x; then
+    AR="false"
+  else
+    case $cross_compiling:$ac_tool_warned in
+yes:)
+{ $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: using cross tools not prefixed with host triplet" >&5
+$as_echo "$as_me: WARNING: using cross tools not prefixed with host triplet" >&2;}
+ac_tool_warned=yes ;;
+esac
+    AR=$ac_ct_AR
+  fi
+fi
+
+: ${AR=ar}
+: ${AR_FLAGS=cru}
+
+
+
+
+
+
+
+
+
+
+
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for archiver @FILE support" >&5
+$as_echo_n "checking for archiver @FILE support... " >&6; }
+if ${lt_cv_ar_at_file+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  lt_cv_ar_at_file=no
+   cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+int
+main ()
+{
+
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_c_try_compile "$LINENO"; then :
+  echo conftest.$ac_objext > conftest.lst
+      lt_ar_try='$AR $AR_FLAGS libconftest.a @conftest.lst >&5'
+      { { eval echo "\"\$as_me\":${as_lineno-$LINENO}: \"$lt_ar_try\""; } >&5
+  (eval $lt_ar_try) 2>&5
+  ac_status=$?
+  $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+  test $ac_status = 0; }
+      if test 0 -eq "$ac_status"; then
+	# Ensure the archiver fails upon bogus file names.
+	rm -f conftest.$ac_objext libconftest.a
+	{ { eval echo "\"\$as_me\":${as_lineno-$LINENO}: \"$lt_ar_try\""; } >&5
+  (eval $lt_ar_try) 2>&5
+  ac_status=$?
+  $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+  test $ac_status = 0; }
+	if test 0 -ne "$ac_status"; then
+          lt_cv_ar_at_file=@
+        fi
+      fi
+      rm -f conftest.* libconftest.a
+
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $lt_cv_ar_at_file" >&5
+$as_echo "$lt_cv_ar_at_file" >&6; }
+
+if test no = "$lt_cv_ar_at_file"; then
+  archiver_list_spec=
+else
+  archiver_list_spec=$lt_cv_ar_at_file
+fi
+
+
+
+
+
+
+
+if test -n "$ac_tool_prefix"; then
+  # Extract the first word of "${ac_tool_prefix}strip", so it can be a program name with args.
+set dummy ${ac_tool_prefix}strip; ac_word=$2
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
+$as_echo_n "checking for $ac_word... " >&6; }
+if ${ac_cv_prog_STRIP+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  if test -n "$STRIP"; then
+  ac_cv_prog_STRIP="$STRIP" # Let the user override the test.
+else
+as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+for as_dir in $PATH
+do
+  IFS=$as_save_IFS
+  test -z "$as_dir" && as_dir=.
+    for ac_exec_ext in '' $ac_executable_extensions; do
+  if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
+    ac_cv_prog_STRIP="${ac_tool_prefix}strip"
+    $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
+    break 2
+  fi
+done
+  done
+IFS=$as_save_IFS
+
+fi
+fi
+STRIP=$ac_cv_prog_STRIP
+if test -n "$STRIP"; then
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $STRIP" >&5
+$as_echo "$STRIP" >&6; }
+else
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+fi
+
+
+fi
+if test -z "$ac_cv_prog_STRIP"; then
+  ac_ct_STRIP=$STRIP
+  # Extract the first word of "strip", so it can be a program name with args.
+set dummy strip; ac_word=$2
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
+$as_echo_n "checking for $ac_word... " >&6; }
+if ${ac_cv_prog_ac_ct_STRIP+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  if test -n "$ac_ct_STRIP"; then
+  ac_cv_prog_ac_ct_STRIP="$ac_ct_STRIP" # Let the user override the test.
+else
+as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+for as_dir in $PATH
+do
+  IFS=$as_save_IFS
+  test -z "$as_dir" && as_dir=.
+    for ac_exec_ext in '' $ac_executable_extensions; do
+  if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
+    ac_cv_prog_ac_ct_STRIP="strip"
+    $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
+    break 2
+  fi
+done
+  done
+IFS=$as_save_IFS
+
+fi
+fi
+ac_ct_STRIP=$ac_cv_prog_ac_ct_STRIP
+if test -n "$ac_ct_STRIP"; then
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_ct_STRIP" >&5
+$as_echo "$ac_ct_STRIP" >&6; }
+else
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+fi
+
+  if test "x$ac_ct_STRIP" = x; then
+    STRIP=":"
+  else
+    case $cross_compiling:$ac_tool_warned in
+yes:)
+{ $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: using cross tools not prefixed with host triplet" >&5
+$as_echo "$as_me: WARNING: using cross tools not prefixed with host triplet" >&2;}
+ac_tool_warned=yes ;;
+esac
+    STRIP=$ac_ct_STRIP
+  fi
+else
+  STRIP="$ac_cv_prog_STRIP"
+fi
+
+test -z "$STRIP" && STRIP=:
+
+
+
+
+
+
+if test -n "$ac_tool_prefix"; then
+  # Extract the first word of "${ac_tool_prefix}ranlib", so it can be a program name with args.
+set dummy ${ac_tool_prefix}ranlib; ac_word=$2
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
+$as_echo_n "checking for $ac_word... " >&6; }
+if ${ac_cv_prog_RANLIB+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  if test -n "$RANLIB"; then
+  ac_cv_prog_RANLIB="$RANLIB" # Let the user override the test.
+else
+as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+for as_dir in $PATH
+do
+  IFS=$as_save_IFS
+  test -z "$as_dir" && as_dir=.
+    for ac_exec_ext in '' $ac_executable_extensions; do
+  if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
+    ac_cv_prog_RANLIB="${ac_tool_prefix}ranlib"
+    $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
+    break 2
+  fi
+done
+  done
+IFS=$as_save_IFS
+
+fi
+fi
+RANLIB=$ac_cv_prog_RANLIB
+if test -n "$RANLIB"; then
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $RANLIB" >&5
+$as_echo "$RANLIB" >&6; }
+else
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+fi
+
+
+fi
+if test -z "$ac_cv_prog_RANLIB"; then
+  ac_ct_RANLIB=$RANLIB
+  # Extract the first word of "ranlib", so it can be a program name with args.
+set dummy ranlib; ac_word=$2
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
+$as_echo_n "checking for $ac_word... " >&6; }
+if ${ac_cv_prog_ac_ct_RANLIB+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  if test -n "$ac_ct_RANLIB"; then
+  ac_cv_prog_ac_ct_RANLIB="$ac_ct_RANLIB" # Let the user override the test.
+else
+as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+for as_dir in $PATH
+do
+  IFS=$as_save_IFS
+  test -z "$as_dir" && as_dir=.
+    for ac_exec_ext in '' $ac_executable_extensions; do
+  if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
+    ac_cv_prog_ac_ct_RANLIB="ranlib"
+    $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
+    break 2
+  fi
+done
+  done
+IFS=$as_save_IFS
+
+fi
+fi
+ac_ct_RANLIB=$ac_cv_prog_ac_ct_RANLIB
+if test -n "$ac_ct_RANLIB"; then
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_ct_RANLIB" >&5
+$as_echo "$ac_ct_RANLIB" >&6; }
+else
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+fi
+
+  if test "x$ac_ct_RANLIB" = x; then
+    RANLIB=":"
+  else
+    case $cross_compiling:$ac_tool_warned in
+yes:)
+{ $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: using cross tools not prefixed with host triplet" >&5
+$as_echo "$as_me: WARNING: using cross tools not prefixed with host triplet" >&2;}
+ac_tool_warned=yes ;;
+esac
+    RANLIB=$ac_ct_RANLIB
+  fi
+else
+  RANLIB="$ac_cv_prog_RANLIB"
+fi
+
+test -z "$RANLIB" && RANLIB=:
+
+
+
+
+
+
+# Determine commands to create old-style static archives.
+old_archive_cmds='$AR $AR_FLAGS $oldlib$oldobjs'
+old_postinstall_cmds='chmod 644 $oldlib'
+old_postuninstall_cmds=
+
+if test -n "$RANLIB"; then
+  case $host_os in
+  bitrig* | openbsd*)
+    old_postinstall_cmds="$old_postinstall_cmds~\$RANLIB -t \$tool_oldlib"
+    ;;
+  *)
+    old_postinstall_cmds="$old_postinstall_cmds~\$RANLIB \$tool_oldlib"
+    ;;
+  esac
+  old_archive_cmds="$old_archive_cmds~\$RANLIB \$tool_oldlib"
+fi
+
+case $host_os in
+  darwin*)
+    lock_old_archive_extraction=yes ;;
+  *)
+    lock_old_archive_extraction=no ;;
+esac
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+# If no C compiler was specified, use CC.
+LTCC=${LTCC-"$CC"}
+
+# If no C compiler flags were specified, use CFLAGS.
+LTCFLAGS=${LTCFLAGS-"$CFLAGS"}
+
+# Allow CC to be a program name with arguments.
+compiler=$CC
+
+
+# Check for command to grab the raw symbol name followed by C symbol from nm.
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking command to parse $NM output from $compiler object" >&5
+$as_echo_n "checking command to parse $NM output from $compiler object... " >&6; }
+if ${lt_cv_sys_global_symbol_pipe+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+
+# These are sane defaults that work on at least a few old systems.
+# [They come from Ultrix.  What could be older than Ultrix?!! ;)]
+
+# Character class describing NM global symbol codes.
+symcode='[BCDEGRST]'
+
+# Regexp to match symbols that can be accessed directly from C.
+sympat='\([_A-Za-z][_A-Za-z0-9]*\)'
+
+# Define system-specific variables.
+case $host_os in
+aix*)
+  symcode='[BCDT]'
+  ;;
+cygwin* | mingw* | pw32* | cegcc*)
+  symcode='[ABCDGISTW]'
+  ;;
+hpux*)
+  if test ia64 = "$host_cpu"; then
+    symcode='[ABCDEGRST]'
+  fi
+  ;;
+irix* | nonstopux*)
+  symcode='[BCDEGRST]'
+  ;;
+osf*)
+  symcode='[BCDEGQRST]'
+  ;;
+solaris*)
+  symcode='[BDRT]'
+  ;;
+sco3.2v5*)
+  symcode='[DT]'
+  ;;
+sysv4.2uw2*)
+  symcode='[DT]'
+  ;;
+sysv5* | sco5v6* | unixware* | OpenUNIX*)
+  symcode='[ABDT]'
+  ;;
+sysv4)
+  symcode='[DFNSTU]'
+  ;;
+esac
+
+# If we're using GNU nm, then use its standard symbol codes.
+case `$NM -V 2>&1` in
+*GNU* | *'with BFD'*)
+  symcode='[ABCDGIRSTW]' ;;
+esac
+
+if test "$lt_cv_nm_interface" = "MS dumpbin"; then
+  # Gets list of data symbols to import.
+  lt_cv_sys_global_symbol_to_import="sed -n -e 's/^I .* \(.*\)$/\1/p'"
+  # Adjust the below global symbol transforms to fixup imported variables.
+  lt_cdecl_hook=" -e 's/^I .* \(.*\)$/extern __declspec(dllimport) char \1;/p'"
+  lt_c_name_hook=" -e 's/^I .* \(.*\)$/  {\"\1\", (void *) 0},/p'"
+  lt_c_name_lib_hook="\
+  -e 's/^I .* \(lib.*\)$/  {\"\1\", (void *) 0},/p'\
+  -e 's/^I .* \(.*\)$/  {\"lib\1\", (void *) 0},/p'"
+else
+  # Disable hooks by default.
+  lt_cv_sys_global_symbol_to_import=
+  lt_cdecl_hook=
+  lt_c_name_hook=
+  lt_c_name_lib_hook=
+fi
+
+# Transform an extracted symbol line into a proper C declaration.
+# Some systems (esp. on ia64) link data and code symbols differently,
+# so use this general approach.
+lt_cv_sys_global_symbol_to_cdecl="sed -n"\
+$lt_cdecl_hook\
+" -e 's/^T .* \(.*\)$/extern int \1();/p'"\
+" -e 's/^$symcode$symcode* .* \(.*\)$/extern char \1;/p'"
+
+# Transform an extracted symbol line into symbol name and symbol address
+lt_cv_sys_global_symbol_to_c_name_address="sed -n"\
+$lt_c_name_hook\
+" -e 's/^: \(.*\) .*$/  {\"\1\", (void *) 0},/p'"\
+" -e 's/^$symcode$symcode* .* \(.*\)$/  {\"\1\", (void *) \&\1},/p'"
+
+# Transform an extracted symbol line into symbol name with lib prefix and
+# symbol address.
+lt_cv_sys_global_symbol_to_c_name_address_lib_prefix="sed -n"\
+$lt_c_name_lib_hook\
+" -e 's/^: \(.*\) .*$/  {\"\1\", (void *) 0},/p'"\
+" -e 's/^$symcode$symcode* .* \(lib.*\)$/  {\"\1\", (void *) \&\1},/p'"\
+" -e 's/^$symcode$symcode* .* \(.*\)$/  {\"lib\1\", (void *) \&\1},/p'"
+
+# Handle CRLF in mingw tool chain
+opt_cr=
+case $build_os in
+mingw*)
+  opt_cr=`$ECHO 'x\{0,1\}' | tr x '\015'` # option cr in regexp
+  ;;
+esac
+
+# Try without a prefix underscore, then with it.
+for ac_symprfx in "" "_"; do
+
+  # Transform symcode, sympat, and symprfx into a raw symbol and a C symbol.
+  symxfrm="\\1 $ac_symprfx\\2 \\2"
+
+  # Write the raw and C identifiers.
+  if test "$lt_cv_nm_interface" = "MS dumpbin"; then
+    # Fake it for dumpbin and say T for any non-static function,
+    # D for any global variable and I for any imported variable.
+    # Also find C++ and __fastcall symbols from MSVC++,
+    # which start with @ or ?.
+    lt_cv_sys_global_symbol_pipe="$AWK '"\
+"     {last_section=section; section=\$ 3};"\
+"     /^COFF SYMBOL TABLE/{for(i in hide) delete hide[i]};"\
+"     /Section length .*#relocs.*(pick any)/{hide[last_section]=1};"\
+"     /^ *Symbol name *: /{split(\$ 0,sn,\":\"); si=substr(sn[2],2)};"\
+"     /^ *Type *: code/{print \"T\",si,substr(si,length(prfx))};"\
+"     /^ *Type *: data/{print \"I\",si,substr(si,length(prfx))};"\
+"     \$ 0!~/External *\|/{next};"\
+"     / 0+ UNDEF /{next}; / UNDEF \([^|]\)*()/{next};"\
+"     {if(hide[section]) next};"\
+"     {f=\"D\"}; \$ 0~/\(\).*\|/{f=\"T\"};"\
+"     {split(\$ 0,a,/\||\r/); split(a[2],s)};"\
+"     s[1]~/^[@?]/{print f,s[1],s[1]; next};"\
+"     s[1]~prfx {split(s[1],t,\"@\"); print f,t[1],substr(t[1],length(prfx))}"\
+"     ' prfx=^$ac_symprfx"
+  else
+    lt_cv_sys_global_symbol_pipe="sed -n -e 's/^.*[	 ]\($symcode$symcode*\)[	 ][	 ]*$ac_symprfx$sympat$opt_cr$/$symxfrm/p'"
+  fi
+  lt_cv_sys_global_symbol_pipe="$lt_cv_sys_global_symbol_pipe | sed '/ __gnu_lto/d'"
+
+  # Check to see that the pipe works correctly.
+  pipe_works=no
+
+  rm -f conftest*
+  cat > conftest.$ac_ext <<_LT_EOF
+#ifdef __cplusplus
+extern "C" {
+#endif
+char nm_test_var;
+void nm_test_func(void);
+void nm_test_func(void){}
+#ifdef __cplusplus
+}
+#endif
+int main(){nm_test_var='a';nm_test_func();return(0);}
+_LT_EOF
+
+  if { { eval echo "\"\$as_me\":${as_lineno-$LINENO}: \"$ac_compile\""; } >&5
+  (eval $ac_compile) 2>&5
+  ac_status=$?
+  $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+  test $ac_status = 0; }; then
+    # Now try to grab the symbols.
+    nlist=conftest.nm
+    if { { eval echo "\"\$as_me\":${as_lineno-$LINENO}: \"$NM conftest.$ac_objext \| "$lt_cv_sys_global_symbol_pipe" \> $nlist\""; } >&5
+  (eval $NM conftest.$ac_objext \| "$lt_cv_sys_global_symbol_pipe" \> $nlist) 2>&5
+  ac_status=$?
+  $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+  test $ac_status = 0; } && test -s "$nlist"; then
+      # Try sorting and uniquifying the output.
+      if sort "$nlist" | uniq > "$nlist"T; then
+	mv -f "$nlist"T "$nlist"
+      else
+	rm -f "$nlist"T
+      fi
+
+      # Make sure that we snagged all the symbols we need.
+      if $GREP ' nm_test_var$' "$nlist" >/dev/null; then
+	if $GREP ' nm_test_func$' "$nlist" >/dev/null; then
+	  cat <<_LT_EOF > conftest.$ac_ext
+/* Keep this code in sync between libtool.m4, ltmain, lt_system.h, and tests.  */
+#if defined _WIN32 || defined __CYGWIN__ || defined _WIN32_WCE
+/* DATA imports from DLLs on WIN32 can't be const, because runtime
+   relocations are performed -- see ld's documentation on pseudo-relocs.  */
+# define LT_DLSYM_CONST
+#elif defined __osf__
+/* This system does not cope well with relocations in const data.  */
+# define LT_DLSYM_CONST
+#else
+# define LT_DLSYM_CONST const
+#endif
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+_LT_EOF
+	  # Now generate the symbol file.
+	  eval "$lt_cv_sys_global_symbol_to_cdecl"' < "$nlist" | $GREP -v main >> conftest.$ac_ext'
+
+	  cat <<_LT_EOF >> conftest.$ac_ext
+
+/* The mapping between symbol names and symbols.  */
+LT_DLSYM_CONST struct {
+  const char *name;
+  void       *address;
+}
+lt__PROGRAM__LTX_preloaded_symbols[] =
+{
+  { "@PROGRAM@", (void *) 0 },
+_LT_EOF
+	  $SED "s/^$symcode$symcode* .* \(.*\)$/  {\"\1\", (void *) \&\1},/" < "$nlist" | $GREP -v main >> conftest.$ac_ext
+	  cat <<\_LT_EOF >> conftest.$ac_ext
+  {0, (void *) 0}
+};
+
+/* This works around a problem in FreeBSD linker */
+#ifdef FREEBSD_WORKAROUND
+static const void *lt_preloaded_setup() {
+  return lt__PROGRAM__LTX_preloaded_symbols;
+}
+#endif
+
+#ifdef __cplusplus
+}
+#endif
+_LT_EOF
+	  # Now try linking the two files.
+	  mv conftest.$ac_objext conftstm.$ac_objext
+	  lt_globsym_save_LIBS=$LIBS
+	  lt_globsym_save_CFLAGS=$CFLAGS
+	  LIBS=conftstm.$ac_objext
+	  CFLAGS="$CFLAGS$lt_prog_compiler_no_builtin_flag"
+	  if { { eval echo "\"\$as_me\":${as_lineno-$LINENO}: \"$ac_link\""; } >&5
+  (eval $ac_link) 2>&5
+  ac_status=$?
+  $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+  test $ac_status = 0; } && test -s conftest$ac_exeext; then
+	    pipe_works=yes
+	  fi
+	  LIBS=$lt_globsym_save_LIBS
+	  CFLAGS=$lt_globsym_save_CFLAGS
+	else
+	  echo "cannot find nm_test_func in $nlist" >&5
+	fi
+      else
+	echo "cannot find nm_test_var in $nlist" >&5
+      fi
+    else
+      echo "cannot run $lt_cv_sys_global_symbol_pipe" >&5
+    fi
+  else
+    echo "$progname: failed program was:" >&5
+    cat conftest.$ac_ext >&5
+  fi
+  rm -rf conftest* conftst*
+
+  # Do not use the global_symbol_pipe unless it works.
+  if test yes = "$pipe_works"; then
+    break
+  else
+    lt_cv_sys_global_symbol_pipe=
+  fi
+done
+
+fi
+
+if test -z "$lt_cv_sys_global_symbol_pipe"; then
+  lt_cv_sys_global_symbol_to_cdecl=
+fi
+if test -z "$lt_cv_sys_global_symbol_pipe$lt_cv_sys_global_symbol_to_cdecl"; then
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: failed" >&5
+$as_echo "failed" >&6; }
+else
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: ok" >&5
+$as_echo "ok" >&6; }
+fi
+
+# Response file support.
+if test "$lt_cv_nm_interface" = "MS dumpbin"; then
+  nm_file_list_spec='@'
+elif $NM --help 2>/dev/null | grep '[@]FILE' >/dev/null; then
+  nm_file_list_spec='@'
+fi
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for sysroot" >&5
+$as_echo_n "checking for sysroot... " >&6; }
+
+# Check whether --with-sysroot was given.
+if test "${with_sysroot+set}" = set; then :
+  withval=$with_sysroot;
+else
+  with_sysroot=no
+fi
+
+
+lt_sysroot=
+case $with_sysroot in #(
+ yes)
+   if test yes = "$GCC"; then
+     lt_sysroot=`$CC --print-sysroot 2>/dev/null`
+   fi
+   ;; #(
+ /*)
+   lt_sysroot=`echo "$with_sysroot" | sed -e "$sed_quote_subst"`
+   ;; #(
+ no|'')
+   ;; #(
+ *)
+   { $as_echo "$as_me:${as_lineno-$LINENO}: result: $with_sysroot" >&5
+$as_echo "$with_sysroot" >&6; }
+   as_fn_error $? "The sysroot must be an absolute path." "$LINENO" 5
+   ;;
+esac
+
+ { $as_echo "$as_me:${as_lineno-$LINENO}: result: ${lt_sysroot:-no}" >&5
+$as_echo "${lt_sysroot:-no}" >&6; }
+
+
+
+
+
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for a working dd" >&5
+$as_echo_n "checking for a working dd... " >&6; }
+if ${ac_cv_path_lt_DD+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  printf 0123456789abcdef0123456789abcdef >conftest.i
+cat conftest.i conftest.i >conftest2.i
+: ${lt_DD:=$DD}
+if test -z "$lt_DD"; then
+  ac_path_lt_DD_found=false
+  # Loop through the user's path and test for each of PROGNAME-LIST
+  as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+for as_dir in $PATH
+do
+  IFS=$as_save_IFS
+  test -z "$as_dir" && as_dir=.
+    for ac_prog in dd; do
+    for ac_exec_ext in '' $ac_executable_extensions; do
+      ac_path_lt_DD="$as_dir/$ac_prog$ac_exec_ext"
+      as_fn_executable_p "$ac_path_lt_DD" || continue
+if "$ac_path_lt_DD" bs=32 count=1 <conftest2.i >conftest.out 2>/dev/null; then
+  cmp -s conftest.i conftest.out \
+  && ac_cv_path_lt_DD="$ac_path_lt_DD" ac_path_lt_DD_found=:
+fi
+      $ac_path_lt_DD_found && break 3
+    done
+  done
+  done
+IFS=$as_save_IFS
+  if test -z "$ac_cv_path_lt_DD"; then
+    :
+  fi
+else
+  ac_cv_path_lt_DD=$lt_DD
+fi
+
+rm -f conftest.i conftest2.i conftest.out
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_path_lt_DD" >&5
+$as_echo "$ac_cv_path_lt_DD" >&6; }
+
+
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking how to truncate binary pipes" >&5
+$as_echo_n "checking how to truncate binary pipes... " >&6; }
+if ${lt_cv_truncate_bin+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  printf 0123456789abcdef0123456789abcdef >conftest.i
+cat conftest.i conftest.i >conftest2.i
+lt_cv_truncate_bin=
+if "$ac_cv_path_lt_DD" bs=32 count=1 <conftest2.i >conftest.out 2>/dev/null; then
+  cmp -s conftest.i conftest.out \
+  && lt_cv_truncate_bin="$ac_cv_path_lt_DD bs=4096 count=1"
+fi
+rm -f conftest.i conftest2.i conftest.out
+test -z "$lt_cv_truncate_bin" && lt_cv_truncate_bin="$SED -e 4q"
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $lt_cv_truncate_bin" >&5
+$as_echo "$lt_cv_truncate_bin" >&6; }
+
+
+
+
+
+
+
+# Calculate cc_basename.  Skip known compiler wrappers and cross-prefix.
+func_cc_basename ()
+{
+    for cc_temp in $*""; do
+      case $cc_temp in
+        compile | *[\\/]compile | ccache | *[\\/]ccache ) ;;
+        distcc | *[\\/]distcc | purify | *[\\/]purify ) ;;
+        \-*) ;;
+        *) break;;
+      esac
+    done
+    func_cc_basename_result=`$ECHO "$cc_temp" | $SED "s%.*/%%; s%^$host_alias-%%"`
+}
+
+# Check whether --enable-libtool-lock was given.
+if test "${enable_libtool_lock+set}" = set; then :
+  enableval=$enable_libtool_lock;
+fi
+
+test no = "$enable_libtool_lock" || enable_libtool_lock=yes
+
+# Some flags need to be propagated to the compiler or linker for good
+# libtool support.
+case $host in
+ia64-*-hpux*)
+  # Find out what ABI is being produced by ac_compile, and set mode
+  # options accordingly.
+  echo 'int i;' > conftest.$ac_ext
+  if { { eval echo "\"\$as_me\":${as_lineno-$LINENO}: \"$ac_compile\""; } >&5
+  (eval $ac_compile) 2>&5
+  ac_status=$?
+  $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+  test $ac_status = 0; }; then
+    case `/usr/bin/file conftest.$ac_objext` in
+      *ELF-32*)
+	HPUX_IA64_MODE=32
+	;;
+      *ELF-64*)
+	HPUX_IA64_MODE=64
+	;;
+    esac
+  fi
+  rm -rf conftest*
+  ;;
+*-*-irix6*)
+  # Find out what ABI is being produced by ac_compile, and set linker
+  # options accordingly.
+  echo '#line '$LINENO' "configure"' > conftest.$ac_ext
+  if { { eval echo "\"\$as_me\":${as_lineno-$LINENO}: \"$ac_compile\""; } >&5
+  (eval $ac_compile) 2>&5
+  ac_status=$?
+  $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+  test $ac_status = 0; }; then
+    if test yes = "$lt_cv_prog_gnu_ld"; then
+      case `/usr/bin/file conftest.$ac_objext` in
+	*32-bit*)
+	  LD="${LD-ld} -melf32bsmip"
+	  ;;
+	*N32*)
+	  LD="${LD-ld} -melf32bmipn32"
+	  ;;
+	*64-bit*)
+	  LD="${LD-ld} -melf64bmip"
+	;;
+      esac
+    else
+      case `/usr/bin/file conftest.$ac_objext` in
+	*32-bit*)
+	  LD="${LD-ld} -32"
+	  ;;
+	*N32*)
+	  LD="${LD-ld} -n32"
+	  ;;
+	*64-bit*)
+	  LD="${LD-ld} -64"
+	  ;;
+      esac
+    fi
+  fi
+  rm -rf conftest*
+  ;;
+
+mips64*-*linux*)
+  # Find out what ABI is being produced by ac_compile, and set linker
+  # options accordingly.
+  echo '#line '$LINENO' "configure"' > conftest.$ac_ext
+  if { { eval echo "\"\$as_me\":${as_lineno-$LINENO}: \"$ac_compile\""; } >&5
+  (eval $ac_compile) 2>&5
+  ac_status=$?
+  $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+  test $ac_status = 0; }; then
+    emul=elf
+    case `/usr/bin/file conftest.$ac_objext` in
+      *32-bit*)
+	emul="${emul}32"
+	;;
+      *64-bit*)
+	emul="${emul}64"
+	;;
+    esac
+    case `/usr/bin/file conftest.$ac_objext` in
+      *MSB*)
+	emul="${emul}btsmip"
+	;;
+      *LSB*)
+	emul="${emul}ltsmip"
+	;;
+    esac
+    case `/usr/bin/file conftest.$ac_objext` in
+      *N32*)
+	emul="${emul}n32"
+	;;
+    esac
+    LD="${LD-ld} -m $emul"
+  fi
+  rm -rf conftest*
+  ;;
+
+x86_64-*kfreebsd*-gnu|x86_64-*linux*|powerpc*-*linux*| \
+s390*-*linux*|s390*-*tpf*|sparc*-*linux*)
+  # Find out what ABI is being produced by ac_compile, and set linker
+  # options accordingly.  Note that the listed cases only cover the
+  # situations where additional linker options are needed (such as when
+  # doing 32-bit compilation for a host where ld defaults to 64-bit, or
+  # vice versa); the common cases where no linker options are needed do
+  # not appear in the list.
+  echo 'int i;' > conftest.$ac_ext
+  if { { eval echo "\"\$as_me\":${as_lineno-$LINENO}: \"$ac_compile\""; } >&5
+  (eval $ac_compile) 2>&5
+  ac_status=$?
+  $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+  test $ac_status = 0; }; then
+    case `/usr/bin/file conftest.o` in
+      *32-bit*)
+	case $host in
+	  x86_64-*kfreebsd*-gnu)
+	    LD="${LD-ld} -m elf_i386_fbsd"
+	    ;;
+	  x86_64-*linux*)
+	    case `/usr/bin/file conftest.o` in
+	      *x86-64*)
+		LD="${LD-ld} -m elf32_x86_64"
+		;;
+	      *)
+		LD="${LD-ld} -m elf_i386"
+		;;
+	    esac
+	    ;;
+	  powerpc64le-*linux*)
+	    LD="${LD-ld} -m elf32lppclinux"
+	    ;;
+	  powerpc64-*linux*)
+	    LD="${LD-ld} -m elf32ppclinux"
+	    ;;
+	  s390x-*linux*)
+	    LD="${LD-ld} -m elf_s390"
+	    ;;
+	  sparc64-*linux*)
+	    LD="${LD-ld} -m elf32_sparc"
+	    ;;
+	esac
+	;;
+      *64-bit*)
+	case $host in
+	  x86_64-*kfreebsd*-gnu)
+	    LD="${LD-ld} -m elf_x86_64_fbsd"
+	    ;;
+	  x86_64-*linux*)
+	    LD="${LD-ld} -m elf_x86_64"
+	    ;;
+	  powerpcle-*linux*)
+	    LD="${LD-ld} -m elf64lppc"
+	    ;;
+	  powerpc-*linux*)
+	    LD="${LD-ld} -m elf64ppc"
+	    ;;
+	  s390*-*linux*|s390*-*tpf*)
+	    LD="${LD-ld} -m elf64_s390"
+	    ;;
+	  sparc*-*linux*)
+	    LD="${LD-ld} -m elf64_sparc"
+	    ;;
+	esac
+	;;
+    esac
+  fi
+  rm -rf conftest*
+  ;;
+
+*-*-sco3.2v5*)
+  # On SCO OpenServer 5, we need -belf to get full-featured binaries.
+  SAVE_CFLAGS=$CFLAGS
+  CFLAGS="$CFLAGS -belf"
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether the C compiler needs -belf" >&5
+$as_echo_n "checking whether the C compiler needs -belf... " >&6; }
+if ${lt_cv_cc_needs_belf+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+     cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+int
+main ()
+{
+
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_c_try_link "$LINENO"; then :
+  lt_cv_cc_needs_belf=yes
+else
+  lt_cv_cc_needs_belf=no
+fi
+rm -f core conftest.err conftest.$ac_objext \
+    conftest$ac_exeext conftest.$ac_ext
+     ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $lt_cv_cc_needs_belf" >&5
+$as_echo "$lt_cv_cc_needs_belf" >&6; }
+  if test yes != "$lt_cv_cc_needs_belf"; then
+    # this is probably gcc 2.8.0, egcs 1.0 or newer; no need for -belf
+    CFLAGS=$SAVE_CFLAGS
+  fi
+  ;;
+*-*solaris*)
+  # Find out what ABI is being produced by ac_compile, and set linker
+  # options accordingly.
+  echo 'int i;' > conftest.$ac_ext
+  if { { eval echo "\"\$as_me\":${as_lineno-$LINENO}: \"$ac_compile\""; } >&5
+  (eval $ac_compile) 2>&5
+  ac_status=$?
+  $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+  test $ac_status = 0; }; then
+    case `/usr/bin/file conftest.o` in
+    *64-bit*)
+      case $lt_cv_prog_gnu_ld in
+      yes*)
+        case $host in
+        i?86-*-solaris*|x86_64-*-solaris*)
+          LD="${LD-ld} -m elf_x86_64"
+          ;;
+        sparc*-*-solaris*)
+          LD="${LD-ld} -m elf64_sparc"
+          ;;
+        esac
+        # GNU ld 2.21 introduced _sol2 emulations.  Use them if available.
+        if ${LD-ld} -V | grep _sol2 >/dev/null 2>&1; then
+          LD=${LD-ld}_sol2
+        fi
+        ;;
+      *)
+	if ${LD-ld} -64 -r -o conftest2.o conftest.o >/dev/null 2>&1; then
+	  LD="${LD-ld} -64"
+	fi
+	;;
+      esac
+      ;;
+    esac
+  fi
+  rm -rf conftest*
+  ;;
+esac
+
+need_locks=$enable_libtool_lock
+
+if test -n "$ac_tool_prefix"; then
+  # Extract the first word of "${ac_tool_prefix}mt", so it can be a program name with args.
+set dummy ${ac_tool_prefix}mt; ac_word=$2
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
+$as_echo_n "checking for $ac_word... " >&6; }
+if ${ac_cv_prog_MANIFEST_TOOL+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  if test -n "$MANIFEST_TOOL"; then
+  ac_cv_prog_MANIFEST_TOOL="$MANIFEST_TOOL" # Let the user override the test.
+else
+as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+for as_dir in $PATH
+do
+  IFS=$as_save_IFS
+  test -z "$as_dir" && as_dir=.
+    for ac_exec_ext in '' $ac_executable_extensions; do
+  if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
+    ac_cv_prog_MANIFEST_TOOL="${ac_tool_prefix}mt"
+    $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
+    break 2
+  fi
+done
+  done
+IFS=$as_save_IFS
+
+fi
+fi
+MANIFEST_TOOL=$ac_cv_prog_MANIFEST_TOOL
+if test -n "$MANIFEST_TOOL"; then
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $MANIFEST_TOOL" >&5
+$as_echo "$MANIFEST_TOOL" >&6; }
+else
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+fi
+
+
+fi
+if test -z "$ac_cv_prog_MANIFEST_TOOL"; then
+  ac_ct_MANIFEST_TOOL=$MANIFEST_TOOL
+  # Extract the first word of "mt", so it can be a program name with args.
+set dummy mt; ac_word=$2
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
+$as_echo_n "checking for $ac_word... " >&6; }
+if ${ac_cv_prog_ac_ct_MANIFEST_TOOL+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  if test -n "$ac_ct_MANIFEST_TOOL"; then
+  ac_cv_prog_ac_ct_MANIFEST_TOOL="$ac_ct_MANIFEST_TOOL" # Let the user override the test.
+else
+as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+for as_dir in $PATH
+do
+  IFS=$as_save_IFS
+  test -z "$as_dir" && as_dir=.
+    for ac_exec_ext in '' $ac_executable_extensions; do
+  if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
+    ac_cv_prog_ac_ct_MANIFEST_TOOL="mt"
+    $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
+    break 2
+  fi
+done
+  done
+IFS=$as_save_IFS
+
+fi
+fi
+ac_ct_MANIFEST_TOOL=$ac_cv_prog_ac_ct_MANIFEST_TOOL
+if test -n "$ac_ct_MANIFEST_TOOL"; then
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_ct_MANIFEST_TOOL" >&5
+$as_echo "$ac_ct_MANIFEST_TOOL" >&6; }
+else
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+fi
+
+  if test "x$ac_ct_MANIFEST_TOOL" = x; then
+    MANIFEST_TOOL=":"
+  else
+    case $cross_compiling:$ac_tool_warned in
+yes:)
+{ $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: using cross tools not prefixed with host triplet" >&5
+$as_echo "$as_me: WARNING: using cross tools not prefixed with host triplet" >&2;}
+ac_tool_warned=yes ;;
+esac
+    MANIFEST_TOOL=$ac_ct_MANIFEST_TOOL
+  fi
+else
+  MANIFEST_TOOL="$ac_cv_prog_MANIFEST_TOOL"
+fi
+
+test -z "$MANIFEST_TOOL" && MANIFEST_TOOL=mt
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking if $MANIFEST_TOOL is a manifest tool" >&5
+$as_echo_n "checking if $MANIFEST_TOOL is a manifest tool... " >&6; }
+if ${lt_cv_path_mainfest_tool+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  lt_cv_path_mainfest_tool=no
+  echo "$as_me:$LINENO: $MANIFEST_TOOL '-?'" >&5
+  $MANIFEST_TOOL '-?' 2>conftest.err > conftest.out
+  cat conftest.err >&5
+  if $GREP 'Manifest Tool' conftest.out > /dev/null; then
+    lt_cv_path_mainfest_tool=yes
+  fi
+  rm -f conftest*
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $lt_cv_path_mainfest_tool" >&5
+$as_echo "$lt_cv_path_mainfest_tool" >&6; }
+if test yes != "$lt_cv_path_mainfest_tool"; then
+  MANIFEST_TOOL=:
+fi
+
+
+
+
+
+
+  case $host_os in
+    rhapsody* | darwin*)
+    if test -n "$ac_tool_prefix"; then
+  # Extract the first word of "${ac_tool_prefix}dsymutil", so it can be a program name with args.
+set dummy ${ac_tool_prefix}dsymutil; ac_word=$2
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
+$as_echo_n "checking for $ac_word... " >&6; }
+if ${ac_cv_prog_DSYMUTIL+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  if test -n "$DSYMUTIL"; then
+  ac_cv_prog_DSYMUTIL="$DSYMUTIL" # Let the user override the test.
+else
+as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+for as_dir in $PATH
+do
+  IFS=$as_save_IFS
+  test -z "$as_dir" && as_dir=.
+    for ac_exec_ext in '' $ac_executable_extensions; do
+  if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
+    ac_cv_prog_DSYMUTIL="${ac_tool_prefix}dsymutil"
+    $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
+    break 2
+  fi
+done
+  done
+IFS=$as_save_IFS
+
+fi
+fi
+DSYMUTIL=$ac_cv_prog_DSYMUTIL
+if test -n "$DSYMUTIL"; then
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $DSYMUTIL" >&5
+$as_echo "$DSYMUTIL" >&6; }
+else
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+fi
+
+
+fi
+if test -z "$ac_cv_prog_DSYMUTIL"; then
+  ac_ct_DSYMUTIL=$DSYMUTIL
+  # Extract the first word of "dsymutil", so it can be a program name with args.
+set dummy dsymutil; ac_word=$2
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
+$as_echo_n "checking for $ac_word... " >&6; }
+if ${ac_cv_prog_ac_ct_DSYMUTIL+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  if test -n "$ac_ct_DSYMUTIL"; then
+  ac_cv_prog_ac_ct_DSYMUTIL="$ac_ct_DSYMUTIL" # Let the user override the test.
+else
+as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+for as_dir in $PATH
+do
+  IFS=$as_save_IFS
+  test -z "$as_dir" && as_dir=.
+    for ac_exec_ext in '' $ac_executable_extensions; do
+  if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
+    ac_cv_prog_ac_ct_DSYMUTIL="dsymutil"
+    $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
+    break 2
+  fi
+done
+  done
+IFS=$as_save_IFS
+
+fi
+fi
+ac_ct_DSYMUTIL=$ac_cv_prog_ac_ct_DSYMUTIL
+if test -n "$ac_ct_DSYMUTIL"; then
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_ct_DSYMUTIL" >&5
+$as_echo "$ac_ct_DSYMUTIL" >&6; }
+else
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+fi
+
+  if test "x$ac_ct_DSYMUTIL" = x; then
+    DSYMUTIL=":"
+  else
+    case $cross_compiling:$ac_tool_warned in
+yes:)
+{ $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: using cross tools not prefixed with host triplet" >&5
+$as_echo "$as_me: WARNING: using cross tools not prefixed with host triplet" >&2;}
+ac_tool_warned=yes ;;
+esac
+    DSYMUTIL=$ac_ct_DSYMUTIL
+  fi
+else
+  DSYMUTIL="$ac_cv_prog_DSYMUTIL"
+fi
+
+    if test -n "$ac_tool_prefix"; then
+  # Extract the first word of "${ac_tool_prefix}nmedit", so it can be a program name with args.
+set dummy ${ac_tool_prefix}nmedit; ac_word=$2
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
+$as_echo_n "checking for $ac_word... " >&6; }
+if ${ac_cv_prog_NMEDIT+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  if test -n "$NMEDIT"; then
+  ac_cv_prog_NMEDIT="$NMEDIT" # Let the user override the test.
+else
+as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+for as_dir in $PATH
+do
+  IFS=$as_save_IFS
+  test -z "$as_dir" && as_dir=.
+    for ac_exec_ext in '' $ac_executable_extensions; do
+  if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
+    ac_cv_prog_NMEDIT="${ac_tool_prefix}nmedit"
+    $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
+    break 2
+  fi
+done
+  done
+IFS=$as_save_IFS
+
+fi
+fi
+NMEDIT=$ac_cv_prog_NMEDIT
+if test -n "$NMEDIT"; then
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $NMEDIT" >&5
+$as_echo "$NMEDIT" >&6; }
+else
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+fi
+
+
+fi
+if test -z "$ac_cv_prog_NMEDIT"; then
+  ac_ct_NMEDIT=$NMEDIT
+  # Extract the first word of "nmedit", so it can be a program name with args.
+set dummy nmedit; ac_word=$2
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
+$as_echo_n "checking for $ac_word... " >&6; }
+if ${ac_cv_prog_ac_ct_NMEDIT+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  if test -n "$ac_ct_NMEDIT"; then
+  ac_cv_prog_ac_ct_NMEDIT="$ac_ct_NMEDIT" # Let the user override the test.
+else
+as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+for as_dir in $PATH
+do
+  IFS=$as_save_IFS
+  test -z "$as_dir" && as_dir=.
+    for ac_exec_ext in '' $ac_executable_extensions; do
+  if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
+    ac_cv_prog_ac_ct_NMEDIT="nmedit"
+    $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
+    break 2
+  fi
+done
+  done
+IFS=$as_save_IFS
+
+fi
+fi
+ac_ct_NMEDIT=$ac_cv_prog_ac_ct_NMEDIT
+if test -n "$ac_ct_NMEDIT"; then
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_ct_NMEDIT" >&5
+$as_echo "$ac_ct_NMEDIT" >&6; }
+else
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+fi
+
+  if test "x$ac_ct_NMEDIT" = x; then
+    NMEDIT=":"
+  else
+    case $cross_compiling:$ac_tool_warned in
+yes:)
+{ $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: using cross tools not prefixed with host triplet" >&5
+$as_echo "$as_me: WARNING: using cross tools not prefixed with host triplet" >&2;}
+ac_tool_warned=yes ;;
+esac
+    NMEDIT=$ac_ct_NMEDIT
+  fi
+else
+  NMEDIT="$ac_cv_prog_NMEDIT"
+fi
+
+    if test -n "$ac_tool_prefix"; then
+  # Extract the first word of "${ac_tool_prefix}lipo", so it can be a program name with args.
+set dummy ${ac_tool_prefix}lipo; ac_word=$2
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
+$as_echo_n "checking for $ac_word... " >&6; }
+if ${ac_cv_prog_LIPO+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  if test -n "$LIPO"; then
+  ac_cv_prog_LIPO="$LIPO" # Let the user override the test.
+else
+as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+for as_dir in $PATH
+do
+  IFS=$as_save_IFS
+  test -z "$as_dir" && as_dir=.
+    for ac_exec_ext in '' $ac_executable_extensions; do
+  if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
+    ac_cv_prog_LIPO="${ac_tool_prefix}lipo"
+    $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
+    break 2
+  fi
+done
+  done
+IFS=$as_save_IFS
+
+fi
+fi
+LIPO=$ac_cv_prog_LIPO
+if test -n "$LIPO"; then
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $LIPO" >&5
+$as_echo "$LIPO" >&6; }
+else
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+fi
+
+
+fi
+if test -z "$ac_cv_prog_LIPO"; then
+  ac_ct_LIPO=$LIPO
+  # Extract the first word of "lipo", so it can be a program name with args.
+set dummy lipo; ac_word=$2
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
+$as_echo_n "checking for $ac_word... " >&6; }
+if ${ac_cv_prog_ac_ct_LIPO+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  if test -n "$ac_ct_LIPO"; then
+  ac_cv_prog_ac_ct_LIPO="$ac_ct_LIPO" # Let the user override the test.
+else
+as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+for as_dir in $PATH
+do
+  IFS=$as_save_IFS
+  test -z "$as_dir" && as_dir=.
+    for ac_exec_ext in '' $ac_executable_extensions; do
+  if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
+    ac_cv_prog_ac_ct_LIPO="lipo"
+    $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
+    break 2
+  fi
+done
+  done
+IFS=$as_save_IFS
+
+fi
+fi
+ac_ct_LIPO=$ac_cv_prog_ac_ct_LIPO
+if test -n "$ac_ct_LIPO"; then
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_ct_LIPO" >&5
+$as_echo "$ac_ct_LIPO" >&6; }
+else
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+fi
+
+  if test "x$ac_ct_LIPO" = x; then
+    LIPO=":"
+  else
+    case $cross_compiling:$ac_tool_warned in
+yes:)
+{ $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: using cross tools not prefixed with host triplet" >&5
+$as_echo "$as_me: WARNING: using cross tools not prefixed with host triplet" >&2;}
+ac_tool_warned=yes ;;
+esac
+    LIPO=$ac_ct_LIPO
+  fi
+else
+  LIPO="$ac_cv_prog_LIPO"
+fi
+
+    if test -n "$ac_tool_prefix"; then
+  # Extract the first word of "${ac_tool_prefix}otool", so it can be a program name with args.
+set dummy ${ac_tool_prefix}otool; ac_word=$2
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
+$as_echo_n "checking for $ac_word... " >&6; }
+if ${ac_cv_prog_OTOOL+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  if test -n "$OTOOL"; then
+  ac_cv_prog_OTOOL="$OTOOL" # Let the user override the test.
+else
+as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+for as_dir in $PATH
+do
+  IFS=$as_save_IFS
+  test -z "$as_dir" && as_dir=.
+    for ac_exec_ext in '' $ac_executable_extensions; do
+  if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
+    ac_cv_prog_OTOOL="${ac_tool_prefix}otool"
+    $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
+    break 2
+  fi
+done
+  done
+IFS=$as_save_IFS
+
+fi
+fi
+OTOOL=$ac_cv_prog_OTOOL
+if test -n "$OTOOL"; then
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $OTOOL" >&5
+$as_echo "$OTOOL" >&6; }
+else
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+fi
+
+
+fi
+if test -z "$ac_cv_prog_OTOOL"; then
+  ac_ct_OTOOL=$OTOOL
+  # Extract the first word of "otool", so it can be a program name with args.
+set dummy otool; ac_word=$2
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
+$as_echo_n "checking for $ac_word... " >&6; }
+if ${ac_cv_prog_ac_ct_OTOOL+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  if test -n "$ac_ct_OTOOL"; then
+  ac_cv_prog_ac_ct_OTOOL="$ac_ct_OTOOL" # Let the user override the test.
+else
+as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+for as_dir in $PATH
+do
+  IFS=$as_save_IFS
+  test -z "$as_dir" && as_dir=.
+    for ac_exec_ext in '' $ac_executable_extensions; do
+  if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
+    ac_cv_prog_ac_ct_OTOOL="otool"
+    $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
+    break 2
+  fi
+done
+  done
+IFS=$as_save_IFS
+
+fi
+fi
+ac_ct_OTOOL=$ac_cv_prog_ac_ct_OTOOL
+if test -n "$ac_ct_OTOOL"; then
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_ct_OTOOL" >&5
+$as_echo "$ac_ct_OTOOL" >&6; }
+else
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+fi
+
+  if test "x$ac_ct_OTOOL" = x; then
+    OTOOL=":"
+  else
+    case $cross_compiling:$ac_tool_warned in
+yes:)
+{ $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: using cross tools not prefixed with host triplet" >&5
+$as_echo "$as_me: WARNING: using cross tools not prefixed with host triplet" >&2;}
+ac_tool_warned=yes ;;
+esac
+    OTOOL=$ac_ct_OTOOL
+  fi
+else
+  OTOOL="$ac_cv_prog_OTOOL"
+fi
+
+    if test -n "$ac_tool_prefix"; then
+  # Extract the first word of "${ac_tool_prefix}otool64", so it can be a program name with args.
+set dummy ${ac_tool_prefix}otool64; ac_word=$2
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
+$as_echo_n "checking for $ac_word... " >&6; }
+if ${ac_cv_prog_OTOOL64+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  if test -n "$OTOOL64"; then
+  ac_cv_prog_OTOOL64="$OTOOL64" # Let the user override the test.
+else
+as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+for as_dir in $PATH
+do
+  IFS=$as_save_IFS
+  test -z "$as_dir" && as_dir=.
+    for ac_exec_ext in '' $ac_executable_extensions; do
+  if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
+    ac_cv_prog_OTOOL64="${ac_tool_prefix}otool64"
+    $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
+    break 2
+  fi
+done
+  done
+IFS=$as_save_IFS
+
+fi
+fi
+OTOOL64=$ac_cv_prog_OTOOL64
+if test -n "$OTOOL64"; then
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $OTOOL64" >&5
+$as_echo "$OTOOL64" >&6; }
+else
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+fi
+
+
+fi
+if test -z "$ac_cv_prog_OTOOL64"; then
+  ac_ct_OTOOL64=$OTOOL64
+  # Extract the first word of "otool64", so it can be a program name with args.
+set dummy otool64; ac_word=$2
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
+$as_echo_n "checking for $ac_word... " >&6; }
+if ${ac_cv_prog_ac_ct_OTOOL64+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  if test -n "$ac_ct_OTOOL64"; then
+  ac_cv_prog_ac_ct_OTOOL64="$ac_ct_OTOOL64" # Let the user override the test.
+else
+as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+for as_dir in $PATH
+do
+  IFS=$as_save_IFS
+  test -z "$as_dir" && as_dir=.
+    for ac_exec_ext in '' $ac_executable_extensions; do
+  if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
+    ac_cv_prog_ac_ct_OTOOL64="otool64"
+    $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
+    break 2
+  fi
+done
+  done
+IFS=$as_save_IFS
+
+fi
+fi
+ac_ct_OTOOL64=$ac_cv_prog_ac_ct_OTOOL64
+if test -n "$ac_ct_OTOOL64"; then
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_ct_OTOOL64" >&5
+$as_echo "$ac_ct_OTOOL64" >&6; }
+else
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+fi
+
+  if test "x$ac_ct_OTOOL64" = x; then
+    OTOOL64=":"
+  else
+    case $cross_compiling:$ac_tool_warned in
+yes:)
+{ $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: using cross tools not prefixed with host triplet" >&5
+$as_echo "$as_me: WARNING: using cross tools not prefixed with host triplet" >&2;}
+ac_tool_warned=yes ;;
+esac
+    OTOOL64=$ac_ct_OTOOL64
+  fi
+else
+  OTOOL64="$ac_cv_prog_OTOOL64"
+fi
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+    { $as_echo "$as_me:${as_lineno-$LINENO}: checking for -single_module linker flag" >&5
+$as_echo_n "checking for -single_module linker flag... " >&6; }
+if ${lt_cv_apple_cc_single_mod+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  lt_cv_apple_cc_single_mod=no
+      if test -z "$LT_MULTI_MODULE"; then
+	# By default we will add the -single_module flag. You can override
+	# by either setting the environment variable LT_MULTI_MODULE
+	# non-empty at configure time, or by adding -multi_module to the
+	# link flags.
+	rm -rf libconftest.dylib*
+	echo "int foo(void){return 1;}" > conftest.c
+	echo "$LTCC $LTCFLAGS $LDFLAGS -o libconftest.dylib \
+-dynamiclib -Wl,-single_module conftest.c" >&5
+	$LTCC $LTCFLAGS $LDFLAGS -o libconftest.dylib \
+	  -dynamiclib -Wl,-single_module conftest.c 2>conftest.err
+        _lt_result=$?
+	# If there is a non-empty error log, and "single_module"
+	# appears in it, assume the flag caused a linker warning
+        if test -s conftest.err && $GREP single_module conftest.err; then
+	  cat conftest.err >&5
+	# Otherwise, if the output was created with a 0 exit code from
+	# the compiler, it worked.
+	elif test -f libconftest.dylib && test 0 = "$_lt_result"; then
+	  lt_cv_apple_cc_single_mod=yes
+	else
+	  cat conftest.err >&5
+	fi
+	rm -rf libconftest.dylib*
+	rm -f conftest.*
+      fi
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $lt_cv_apple_cc_single_mod" >&5
+$as_echo "$lt_cv_apple_cc_single_mod" >&6; }
+
+    { $as_echo "$as_me:${as_lineno-$LINENO}: checking for -exported_symbols_list linker flag" >&5
+$as_echo_n "checking for -exported_symbols_list linker flag... " >&6; }
+if ${lt_cv_ld_exported_symbols_list+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  lt_cv_ld_exported_symbols_list=no
+      save_LDFLAGS=$LDFLAGS
+      echo "_main" > conftest.sym
+      LDFLAGS="$LDFLAGS -Wl,-exported_symbols_list,conftest.sym"
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+int
+main ()
+{
+
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_c_try_link "$LINENO"; then :
+  lt_cv_ld_exported_symbols_list=yes
+else
+  lt_cv_ld_exported_symbols_list=no
+fi
+rm -f core conftest.err conftest.$ac_objext \
+    conftest$ac_exeext conftest.$ac_ext
+	LDFLAGS=$save_LDFLAGS
+
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $lt_cv_ld_exported_symbols_list" >&5
+$as_echo "$lt_cv_ld_exported_symbols_list" >&6; }
+
+    { $as_echo "$as_me:${as_lineno-$LINENO}: checking for -force_load linker flag" >&5
+$as_echo_n "checking for -force_load linker flag... " >&6; }
+if ${lt_cv_ld_force_load+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  lt_cv_ld_force_load=no
+      cat > conftest.c << _LT_EOF
+int forced_loaded() { return 2;}
+_LT_EOF
+      echo "$LTCC $LTCFLAGS -c -o conftest.o conftest.c" >&5
+      $LTCC $LTCFLAGS -c -o conftest.o conftest.c 2>&5
+      echo "$AR cru libconftest.a conftest.o" >&5
+      $AR cru libconftest.a conftest.o 2>&5
+      echo "$RANLIB libconftest.a" >&5
+      $RANLIB libconftest.a 2>&5
+      cat > conftest.c << _LT_EOF
+int main() { return 0;}
+_LT_EOF
+      echo "$LTCC $LTCFLAGS $LDFLAGS -o conftest conftest.c -Wl,-force_load,./libconftest.a" >&5
+      $LTCC $LTCFLAGS $LDFLAGS -o conftest conftest.c -Wl,-force_load,./libconftest.a 2>conftest.err
+      _lt_result=$?
+      if test -s conftest.err && $GREP force_load conftest.err; then
+	cat conftest.err >&5
+      elif test -f conftest && test 0 = "$_lt_result" && $GREP forced_load conftest >/dev/null 2>&1; then
+	lt_cv_ld_force_load=yes
+      else
+	cat conftest.err >&5
+      fi
+        rm -f conftest.err libconftest.a conftest conftest.c
+        rm -rf conftest.dSYM
+
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $lt_cv_ld_force_load" >&5
+$as_echo "$lt_cv_ld_force_load" >&6; }
+    case $host_os in
+    rhapsody* | darwin1.[012])
+      _lt_dar_allow_undefined='$wl-undefined ${wl}suppress' ;;
+    darwin1.*)
+      _lt_dar_allow_undefined='$wl-flat_namespace $wl-undefined ${wl}suppress' ;;
+    darwin*) # darwin 5.x on
+      # if running on 10.5 or later, the deployment target defaults
+      # to the OS version, if on x86, and 10.4, the deployment
+      # target defaults to 10.4. Don't you love it?
+      case ${MACOSX_DEPLOYMENT_TARGET-10.0},$host in
+	10.0,*86*-darwin8*|10.0,*-darwin[91]*)
+	  _lt_dar_allow_undefined='$wl-undefined ${wl}dynamic_lookup' ;;
+	10.[012][,.]*)
+	  _lt_dar_allow_undefined='$wl-flat_namespace $wl-undefined ${wl}suppress' ;;
+	10.*)
+	  _lt_dar_allow_undefined='$wl-undefined ${wl}dynamic_lookup' ;;
+      esac
+    ;;
+  esac
+    if test yes = "$lt_cv_apple_cc_single_mod"; then
+      _lt_dar_single_mod='$single_module'
+    fi
+    if test yes = "$lt_cv_ld_exported_symbols_list"; then
+      _lt_dar_export_syms=' $wl-exported_symbols_list,$output_objdir/$libname-symbols.expsym'
+    else
+      _lt_dar_export_syms='~$NMEDIT -s $output_objdir/$libname-symbols.expsym $lib'
+    fi
+    if test : != "$DSYMUTIL" && test no = "$lt_cv_ld_force_load"; then
+      _lt_dsymutil='~$DSYMUTIL $lib || :'
+    else
+      _lt_dsymutil=
+    fi
+    ;;
+  esac
+
+# func_munge_path_list VARIABLE PATH
+# -----------------------------------
+# VARIABLE is name of variable containing _space_ separated list of
+# directories to be munged by the contents of PATH, which is string
+# having a format:
+# "DIR[:DIR]:"
+#       string "DIR[ DIR]" will be prepended to VARIABLE
+# ":DIR[:DIR]"
+#       string "DIR[ DIR]" will be appended to VARIABLE
+# "DIRP[:DIRP]::[DIRA:]DIRA"
+#       string "DIRP[ DIRP]" will be prepended to VARIABLE and string
+#       "DIRA[ DIRA]" will be appended to VARIABLE
+# "DIR[:DIR]"
+#       VARIABLE will be replaced by "DIR[ DIR]"
+func_munge_path_list ()
+{
+    case x$2 in
+    x)
+        ;;
+    *:)
+        eval $1=\"`$ECHO $2 | $SED 's/:/ /g'` \$$1\"
+        ;;
+    x:*)
+        eval $1=\"\$$1 `$ECHO $2 | $SED 's/:/ /g'`\"
+        ;;
+    *::*)
+        eval $1=\"\$$1\ `$ECHO $2 | $SED -e 's/.*:://' -e 's/:/ /g'`\"
+        eval $1=\"`$ECHO $2 | $SED -e 's/::.*//' -e 's/:/ /g'`\ \$$1\"
+        ;;
+    *)
+        eval $1=\"`$ECHO $2 | $SED 's/:/ /g'`\"
+        ;;
+    esac
+}
+
+for ac_header in dlfcn.h
+do :
+  ac_fn_c_check_header_compile "$LINENO" "dlfcn.h" "ac_cv_header_dlfcn_h" "$ac_includes_default
+"
+if test "x$ac_cv_header_dlfcn_h" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+#define HAVE_DLFCN_H 1
+_ACEOF
+
+fi
+
+done
+
+
+
+
+
+# Set options
+enable_win32_dll=yes
+
+case $host in
+*-*-cygwin* | *-*-mingw* | *-*-pw32* | *-*-cegcc*)
+  if test -n "$ac_tool_prefix"; then
+  # Extract the first word of "${ac_tool_prefix}as", so it can be a program name with args.
+set dummy ${ac_tool_prefix}as; ac_word=$2
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
+$as_echo_n "checking for $ac_word... " >&6; }
+if ${ac_cv_prog_AS+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  if test -n "$AS"; then
+  ac_cv_prog_AS="$AS" # Let the user override the test.
+else
+as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+for as_dir in $PATH
+do
+  IFS=$as_save_IFS
+  test -z "$as_dir" && as_dir=.
+    for ac_exec_ext in '' $ac_executable_extensions; do
+  if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
+    ac_cv_prog_AS="${ac_tool_prefix}as"
+    $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
+    break 2
+  fi
+done
+  done
+IFS=$as_save_IFS
+
+fi
+fi
+AS=$ac_cv_prog_AS
+if test -n "$AS"; then
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $AS" >&5
+$as_echo "$AS" >&6; }
+else
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+fi
+
+
+fi
+if test -z "$ac_cv_prog_AS"; then
+  ac_ct_AS=$AS
+  # Extract the first word of "as", so it can be a program name with args.
+set dummy as; ac_word=$2
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
+$as_echo_n "checking for $ac_word... " >&6; }
+if ${ac_cv_prog_ac_ct_AS+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  if test -n "$ac_ct_AS"; then
+  ac_cv_prog_ac_ct_AS="$ac_ct_AS" # Let the user override the test.
+else
+as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+for as_dir in $PATH
+do
+  IFS=$as_save_IFS
+  test -z "$as_dir" && as_dir=.
+    for ac_exec_ext in '' $ac_executable_extensions; do
+  if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
+    ac_cv_prog_ac_ct_AS="as"
+    $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
+    break 2
+  fi
+done
+  done
+IFS=$as_save_IFS
+
+fi
+fi
+ac_ct_AS=$ac_cv_prog_ac_ct_AS
+if test -n "$ac_ct_AS"; then
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_ct_AS" >&5
+$as_echo "$ac_ct_AS" >&6; }
+else
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+fi
+
+  if test "x$ac_ct_AS" = x; then
+    AS="false"
+  else
+    case $cross_compiling:$ac_tool_warned in
+yes:)
+{ $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: using cross tools not prefixed with host triplet" >&5
+$as_echo "$as_me: WARNING: using cross tools not prefixed with host triplet" >&2;}
+ac_tool_warned=yes ;;
+esac
+    AS=$ac_ct_AS
+  fi
+else
+  AS="$ac_cv_prog_AS"
+fi
+
+  if test -n "$ac_tool_prefix"; then
+  # Extract the first word of "${ac_tool_prefix}dlltool", so it can be a program name with args.
+set dummy ${ac_tool_prefix}dlltool; ac_word=$2
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
+$as_echo_n "checking for $ac_word... " >&6; }
+if ${ac_cv_prog_DLLTOOL+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  if test -n "$DLLTOOL"; then
+  ac_cv_prog_DLLTOOL="$DLLTOOL" # Let the user override the test.
+else
+as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+for as_dir in $PATH
+do
+  IFS=$as_save_IFS
+  test -z "$as_dir" && as_dir=.
+    for ac_exec_ext in '' $ac_executable_extensions; do
+  if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
+    ac_cv_prog_DLLTOOL="${ac_tool_prefix}dlltool"
+    $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
+    break 2
+  fi
+done
+  done
+IFS=$as_save_IFS
+
+fi
+fi
+DLLTOOL=$ac_cv_prog_DLLTOOL
+if test -n "$DLLTOOL"; then
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $DLLTOOL" >&5
+$as_echo "$DLLTOOL" >&6; }
+else
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+fi
+
+
+fi
+if test -z "$ac_cv_prog_DLLTOOL"; then
+  ac_ct_DLLTOOL=$DLLTOOL
+  # Extract the first word of "dlltool", so it can be a program name with args.
+set dummy dlltool; ac_word=$2
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
+$as_echo_n "checking for $ac_word... " >&6; }
+if ${ac_cv_prog_ac_ct_DLLTOOL+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  if test -n "$ac_ct_DLLTOOL"; then
+  ac_cv_prog_ac_ct_DLLTOOL="$ac_ct_DLLTOOL" # Let the user override the test.
+else
+as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+for as_dir in $PATH
+do
+  IFS=$as_save_IFS
+  test -z "$as_dir" && as_dir=.
+    for ac_exec_ext in '' $ac_executable_extensions; do
+  if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
+    ac_cv_prog_ac_ct_DLLTOOL="dlltool"
+    $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
+    break 2
+  fi
+done
+  done
+IFS=$as_save_IFS
+
+fi
+fi
+ac_ct_DLLTOOL=$ac_cv_prog_ac_ct_DLLTOOL
+if test -n "$ac_ct_DLLTOOL"; then
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_ct_DLLTOOL" >&5
+$as_echo "$ac_ct_DLLTOOL" >&6; }
+else
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+fi
+
+  if test "x$ac_ct_DLLTOOL" = x; then
+    DLLTOOL="false"
+  else
+    case $cross_compiling:$ac_tool_warned in
+yes:)
+{ $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: using cross tools not prefixed with host triplet" >&5
+$as_echo "$as_me: WARNING: using cross tools not prefixed with host triplet" >&2;}
+ac_tool_warned=yes ;;
+esac
+    DLLTOOL=$ac_ct_DLLTOOL
+  fi
+else
+  DLLTOOL="$ac_cv_prog_DLLTOOL"
+fi
+
+  if test -n "$ac_tool_prefix"; then
+  # Extract the first word of "${ac_tool_prefix}objdump", so it can be a program name with args.
+set dummy ${ac_tool_prefix}objdump; ac_word=$2
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
+$as_echo_n "checking for $ac_word... " >&6; }
+if ${ac_cv_prog_OBJDUMP+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  if test -n "$OBJDUMP"; then
+  ac_cv_prog_OBJDUMP="$OBJDUMP" # Let the user override the test.
+else
+as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+for as_dir in $PATH
+do
+  IFS=$as_save_IFS
+  test -z "$as_dir" && as_dir=.
+    for ac_exec_ext in '' $ac_executable_extensions; do
+  if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
+    ac_cv_prog_OBJDUMP="${ac_tool_prefix}objdump"
+    $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
+    break 2
+  fi
+done
+  done
+IFS=$as_save_IFS
+
+fi
+fi
+OBJDUMP=$ac_cv_prog_OBJDUMP
+if test -n "$OBJDUMP"; then
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $OBJDUMP" >&5
+$as_echo "$OBJDUMP" >&6; }
+else
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+fi
+
+
+fi
+if test -z "$ac_cv_prog_OBJDUMP"; then
+  ac_ct_OBJDUMP=$OBJDUMP
+  # Extract the first word of "objdump", so it can be a program name with args.
+set dummy objdump; ac_word=$2
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
+$as_echo_n "checking for $ac_word... " >&6; }
+if ${ac_cv_prog_ac_ct_OBJDUMP+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  if test -n "$ac_ct_OBJDUMP"; then
+  ac_cv_prog_ac_ct_OBJDUMP="$ac_ct_OBJDUMP" # Let the user override the test.
+else
+as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+for as_dir in $PATH
+do
+  IFS=$as_save_IFS
+  test -z "$as_dir" && as_dir=.
+    for ac_exec_ext in '' $ac_executable_extensions; do
+  if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
+    ac_cv_prog_ac_ct_OBJDUMP="objdump"
+    $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
+    break 2
+  fi
+done
+  done
+IFS=$as_save_IFS
+
+fi
+fi
+ac_ct_OBJDUMP=$ac_cv_prog_ac_ct_OBJDUMP
+if test -n "$ac_ct_OBJDUMP"; then
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_ct_OBJDUMP" >&5
+$as_echo "$ac_ct_OBJDUMP" >&6; }
+else
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+fi
+
+  if test "x$ac_ct_OBJDUMP" = x; then
+    OBJDUMP="false"
+  else
+    case $cross_compiling:$ac_tool_warned in
+yes:)
+{ $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: using cross tools not prefixed with host triplet" >&5
+$as_echo "$as_me: WARNING: using cross tools not prefixed with host triplet" >&2;}
+ac_tool_warned=yes ;;
+esac
+    OBJDUMP=$ac_ct_OBJDUMP
+  fi
+else
+  OBJDUMP="$ac_cv_prog_OBJDUMP"
+fi
+
+  ;;
+esac
+
+test -z "$AS" && AS=as
+
+
+
+
+
+test -z "$DLLTOOL" && DLLTOOL=dlltool
+
+
+
+
+
+test -z "$OBJDUMP" && OBJDUMP=objdump
+
+
+
+
+
+
+
+        enable_dlopen=no
+
+
+
+            # Check whether --enable-shared was given.
+if test "${enable_shared+set}" = set; then :
+  enableval=$enable_shared; p=${PACKAGE-default}
+    case $enableval in
+    yes) enable_shared=yes ;;
+    no) enable_shared=no ;;
+    *)
+      enable_shared=no
+      # Look at the argument we got.  We use all the common list separators.
+      lt_save_ifs=$IFS; IFS=$IFS$PATH_SEPARATOR,
+      for pkg in $enableval; do
+	IFS=$lt_save_ifs
+	if test "X$pkg" = "X$p"; then
+	  enable_shared=yes
+	fi
+      done
+      IFS=$lt_save_ifs
+      ;;
+    esac
+else
+  enable_shared=yes
+fi
+
+
+
+
+
+
+
+
+
+  # Check whether --enable-static was given.
+if test "${enable_static+set}" = set; then :
+  enableval=$enable_static; p=${PACKAGE-default}
+    case $enableval in
+    yes) enable_static=yes ;;
+    no) enable_static=no ;;
+    *)
+     enable_static=no
+      # Look at the argument we got.  We use all the common list separators.
+      lt_save_ifs=$IFS; IFS=$IFS$PATH_SEPARATOR,
+      for pkg in $enableval; do
+	IFS=$lt_save_ifs
+	if test "X$pkg" = "X$p"; then
+	  enable_static=yes
+	fi
+      done
+      IFS=$lt_save_ifs
+      ;;
+    esac
+else
+  enable_static=yes
+fi
+
+
+
+
+
+
+
+
+
+
+# Check whether --with-pic was given.
+if test "${with_pic+set}" = set; then :
+  withval=$with_pic; lt_p=${PACKAGE-default}
+    case $withval in
+    yes|no) pic_mode=$withval ;;
+    *)
+      pic_mode=default
+      # Look at the argument we got.  We use all the common list separators.
+      lt_save_ifs=$IFS; IFS=$IFS$PATH_SEPARATOR,
+      for lt_pkg in $withval; do
+	IFS=$lt_save_ifs
+	if test "X$lt_pkg" = "X$lt_p"; then
+	  pic_mode=yes
+	fi
+      done
+      IFS=$lt_save_ifs
+      ;;
+    esac
+else
+  pic_mode=default
+fi
+
+
+
+
+
+
+
+
+  # Check whether --enable-fast-install was given.
+if test "${enable_fast_install+set}" = set; then :
+  enableval=$enable_fast_install; p=${PACKAGE-default}
+    case $enableval in
+    yes) enable_fast_install=yes ;;
+    no) enable_fast_install=no ;;
+    *)
+      enable_fast_install=no
+      # Look at the argument we got.  We use all the common list separators.
+      lt_save_ifs=$IFS; IFS=$IFS$PATH_SEPARATOR,
+      for pkg in $enableval; do
+	IFS=$lt_save_ifs
+	if test "X$pkg" = "X$p"; then
+	  enable_fast_install=yes
+	fi
+      done
+      IFS=$lt_save_ifs
+      ;;
+    esac
+else
+  enable_fast_install=yes
+fi
+
+
+
+
+
+
+
+
+  shared_archive_member_spec=
+case $host,$enable_shared in
+power*-*-aix[5-9]*,yes)
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking which variant of shared library versioning to provide" >&5
+$as_echo_n "checking which variant of shared library versioning to provide... " >&6; }
+
+# Check whether --with-aix-soname was given.
+if test "${with_aix_soname+set}" = set; then :
+  withval=$with_aix_soname; case $withval in
+    aix|svr4|both)
+      ;;
+    *)
+      as_fn_error $? "Unknown argument to --with-aix-soname" "$LINENO" 5
+      ;;
+    esac
+    lt_cv_with_aix_soname=$with_aix_soname
+else
+  if ${lt_cv_with_aix_soname+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  lt_cv_with_aix_soname=aix
+fi
+
+    with_aix_soname=$lt_cv_with_aix_soname
+fi
+
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $with_aix_soname" >&5
+$as_echo "$with_aix_soname" >&6; }
+  if test aix != "$with_aix_soname"; then
+    # For the AIX way of multilib, we name the shared archive member
+    # based on the bitwidth used, traditionally 'shr.o' or 'shr_64.o',
+    # and 'shr.imp' or 'shr_64.imp', respectively, for the Import File.
+    # Even when GNU compilers ignore OBJECT_MODE but need '-maix64' flag,
+    # the AIX toolchain works better with OBJECT_MODE set (default 32).
+    if test 64 = "${OBJECT_MODE-32}"; then
+      shared_archive_member_spec=shr_64
+    else
+      shared_archive_member_spec=shr
+    fi
+  fi
+  ;;
+*)
+  with_aix_soname=aix
+  ;;
+esac
+
+
+
+
+
+
+
+
+
+
+# This can be used to rebuild libtool when needed
+LIBTOOL_DEPS=$ltmain
+
+# Always use our own libtool.
+LIBTOOL='$(SHELL) $(top_builddir)/libtool'
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+test -z "$LN_S" && LN_S="ln -s"
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+if test -n "${ZSH_VERSION+set}"; then
+   setopt NO_GLOB_SUBST
+fi
+
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for objdir" >&5
+$as_echo_n "checking for objdir... " >&6; }
+if ${lt_cv_objdir+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  rm -f .libs 2>/dev/null
+mkdir .libs 2>/dev/null
+if test -d .libs; then
+  lt_cv_objdir=.libs
+else
+  # MS-DOS does not allow filenames that begin with a dot.
+  lt_cv_objdir=_libs
+fi
+rmdir .libs 2>/dev/null
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $lt_cv_objdir" >&5
+$as_echo "$lt_cv_objdir" >&6; }
+objdir=$lt_cv_objdir
+
+
+
+
+
+cat >>confdefs.h <<_ACEOF
+#define LT_OBJDIR "$lt_cv_objdir/"
+_ACEOF
+
+
+
+
+case $host_os in
+aix3*)
+  # AIX sometimes has problems with the GCC collect2 program.  For some
+  # reason, if we set the COLLECT_NAMES environment variable, the problems
+  # vanish in a puff of smoke.
+  if test set != "${COLLECT_NAMES+set}"; then
+    COLLECT_NAMES=
+    export COLLECT_NAMES
+  fi
+  ;;
+esac
+
+# Global variables:
+ofile=libtool
+can_build_shared=yes
+
+# All known linkers require a '.a' archive for static linking (except MSVC,
+# which needs '.lib').
+libext=a
+
+with_gnu_ld=$lt_cv_prog_gnu_ld
+
+old_CC=$CC
+old_CFLAGS=$CFLAGS
+
+# Set sane defaults for various variables
+test -z "$CC" && CC=cc
+test -z "$LTCC" && LTCC=$CC
+test -z "$LTCFLAGS" && LTCFLAGS=$CFLAGS
+test -z "$LD" && LD=ld
+test -z "$ac_objext" && ac_objext=o
+
+func_cc_basename $compiler
+cc_basename=$func_cc_basename_result
+
+
+# Only perform the check for file, if the check method requires it
+test -z "$MAGIC_CMD" && MAGIC_CMD=file
+case $deplibs_check_method in
+file_magic*)
+  if test "$file_magic_cmd" = '$MAGIC_CMD'; then
+    { $as_echo "$as_me:${as_lineno-$LINENO}: checking for ${ac_tool_prefix}file" >&5
+$as_echo_n "checking for ${ac_tool_prefix}file... " >&6; }
+if ${lt_cv_path_MAGIC_CMD+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  case $MAGIC_CMD in
+[\\/*] |  ?:[\\/]*)
+  lt_cv_path_MAGIC_CMD=$MAGIC_CMD # Let the user override the test with a path.
+  ;;
+*)
+  lt_save_MAGIC_CMD=$MAGIC_CMD
+  lt_save_ifs=$IFS; IFS=$PATH_SEPARATOR
+  ac_dummy="/usr/bin$PATH_SEPARATOR$PATH"
+  for ac_dir in $ac_dummy; do
+    IFS=$lt_save_ifs
+    test -z "$ac_dir" && ac_dir=.
+    if test -f "$ac_dir/${ac_tool_prefix}file"; then
+      lt_cv_path_MAGIC_CMD=$ac_dir/"${ac_tool_prefix}file"
+      if test -n "$file_magic_test_file"; then
+	case $deplibs_check_method in
+	"file_magic "*)
+	  file_magic_regex=`expr "$deplibs_check_method" : "file_magic \(.*\)"`
+	  MAGIC_CMD=$lt_cv_path_MAGIC_CMD
+	  if eval $file_magic_cmd \$file_magic_test_file 2> /dev/null |
+	    $EGREP "$file_magic_regex" > /dev/null; then
+	    :
+	  else
+	    cat <<_LT_EOF 1>&2
+
+*** Warning: the command libtool uses to detect shared libraries,
+*** $file_magic_cmd, produces output that libtool cannot recognize.
+*** The result is that libtool may fail to recognize shared libraries
+*** as such.  This will affect the creation of libtool libraries that
+*** depend on shared libraries, but programs linked with such libtool
+*** libraries will work regardless of this problem.  Nevertheless, you
+*** may want to report the problem to your system manager and/or to
+*** bug-libtool@gnu.org
+
+_LT_EOF
+	  fi ;;
+	esac
+      fi
+      break
+    fi
+  done
+  IFS=$lt_save_ifs
+  MAGIC_CMD=$lt_save_MAGIC_CMD
+  ;;
+esac
+fi
+
+MAGIC_CMD=$lt_cv_path_MAGIC_CMD
+if test -n "$MAGIC_CMD"; then
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $MAGIC_CMD" >&5
+$as_echo "$MAGIC_CMD" >&6; }
+else
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+fi
+
+
+
+
+
+if test -z "$lt_cv_path_MAGIC_CMD"; then
+  if test -n "$ac_tool_prefix"; then
+    { $as_echo "$as_me:${as_lineno-$LINENO}: checking for file" >&5
+$as_echo_n "checking for file... " >&6; }
+if ${lt_cv_path_MAGIC_CMD+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  case $MAGIC_CMD in
+[\\/*] |  ?:[\\/]*)
+  lt_cv_path_MAGIC_CMD=$MAGIC_CMD # Let the user override the test with a path.
+  ;;
+*)
+  lt_save_MAGIC_CMD=$MAGIC_CMD
+  lt_save_ifs=$IFS; IFS=$PATH_SEPARATOR
+  ac_dummy="/usr/bin$PATH_SEPARATOR$PATH"
+  for ac_dir in $ac_dummy; do
+    IFS=$lt_save_ifs
+    test -z "$ac_dir" && ac_dir=.
+    if test -f "$ac_dir/file"; then
+      lt_cv_path_MAGIC_CMD=$ac_dir/"file"
+      if test -n "$file_magic_test_file"; then
+	case $deplibs_check_method in
+	"file_magic "*)
+	  file_magic_regex=`expr "$deplibs_check_method" : "file_magic \(.*\)"`
+	  MAGIC_CMD=$lt_cv_path_MAGIC_CMD
+	  if eval $file_magic_cmd \$file_magic_test_file 2> /dev/null |
+	    $EGREP "$file_magic_regex" > /dev/null; then
+	    :
+	  else
+	    cat <<_LT_EOF 1>&2
+
+*** Warning: the command libtool uses to detect shared libraries,
+*** $file_magic_cmd, produces output that libtool cannot recognize.
+*** The result is that libtool may fail to recognize shared libraries
+*** as such.  This will affect the creation of libtool libraries that
+*** depend on shared libraries, but programs linked with such libtool
+*** libraries will work regardless of this problem.  Nevertheless, you
+*** may want to report the problem to your system manager and/or to
+*** bug-libtool@gnu.org
+
+_LT_EOF
+	  fi ;;
+	esac
+      fi
+      break
+    fi
+  done
+  IFS=$lt_save_ifs
+  MAGIC_CMD=$lt_save_MAGIC_CMD
+  ;;
+esac
+fi
+
+MAGIC_CMD=$lt_cv_path_MAGIC_CMD
+if test -n "$MAGIC_CMD"; then
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $MAGIC_CMD" >&5
+$as_echo "$MAGIC_CMD" >&6; }
+else
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+fi
+
+
+  else
+    MAGIC_CMD=:
+  fi
+fi
+
+  fi
+  ;;
+esac
+
+# Use C for the default configuration in the libtool script
+
+lt_save_CC=$CC
+ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+
+# Source file extension for C test sources.
+ac_ext=c
+
+# Object file extension for compiled C test sources.
+objext=o
+objext=$objext
+
+# Code to be used in simple compile tests
+lt_simple_compile_test_code="int some_variable = 0;"
+
+# Code to be used in simple link tests
+lt_simple_link_test_code='int main(){return(0);}'
+
+
+
+
+
+
+
+# If no C compiler was specified, use CC.
+LTCC=${LTCC-"$CC"}
+
+# If no C compiler flags were specified, use CFLAGS.
+LTCFLAGS=${LTCFLAGS-"$CFLAGS"}
+
+# Allow CC to be a program name with arguments.
+compiler=$CC
+
+# Save the default compiler, since it gets overwritten when the other
+# tags are being tested, and _LT_TAGVAR(compiler, []) is a NOP.
+compiler_DEFAULT=$CC
+
+# save warnings/boilerplate of simple test code
+ac_outfile=conftest.$ac_objext
+echo "$lt_simple_compile_test_code" >conftest.$ac_ext
+eval "$ac_compile" 2>&1 >/dev/null | $SED '/^$/d; /^ *+/d' >conftest.err
+_lt_compiler_boilerplate=`cat conftest.err`
+$RM conftest*
+
+ac_outfile=conftest.$ac_objext
+echo "$lt_simple_link_test_code" >conftest.$ac_ext
+eval "$ac_link" 2>&1 >/dev/null | $SED '/^$/d; /^ *+/d' >conftest.err
+_lt_linker_boilerplate=`cat conftest.err`
+$RM -r conftest*
+
+
+## CAVEAT EMPTOR:
+## There is no encapsulation within the following macros, do not change
+## the running order or otherwise move them around unless you know exactly
+## what you are doing...
+if test -n "$compiler"; then
+
+lt_prog_compiler_no_builtin_flag=
+
+if test yes = "$GCC"; then
+  case $cc_basename in
+  nvcc*)
+    lt_prog_compiler_no_builtin_flag=' -Xcompiler -fno-builtin' ;;
+  *)
+    lt_prog_compiler_no_builtin_flag=' -fno-builtin' ;;
+  esac
+
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking if $compiler supports -fno-rtti -fno-exceptions" >&5
+$as_echo_n "checking if $compiler supports -fno-rtti -fno-exceptions... " >&6; }
+if ${lt_cv_prog_compiler_rtti_exceptions+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  lt_cv_prog_compiler_rtti_exceptions=no
+   ac_outfile=conftest.$ac_objext
+   echo "$lt_simple_compile_test_code" > conftest.$ac_ext
+   lt_compiler_flag="-fno-rtti -fno-exceptions"  ## exclude from sc_useless_quotes_in_assignment
+   # Insert the option either (1) after the last *FLAGS variable, or
+   # (2) before a word containing "conftest.", or (3) at the end.
+   # Note that $ac_compile itself does not contain backslashes and begins
+   # with a dollar sign (not a hyphen), so the echo should work correctly.
+   # The option is referenced via a variable to avoid confusing sed.
+   lt_compile=`echo "$ac_compile" | $SED \
+   -e 's:.*FLAGS}\{0,1\} :&$lt_compiler_flag :; t' \
+   -e 's: [^ ]*conftest\.: $lt_compiler_flag&:; t' \
+   -e 's:$: $lt_compiler_flag:'`
+   (eval echo "\"\$as_me:$LINENO: $lt_compile\"" >&5)
+   (eval "$lt_compile" 2>conftest.err)
+   ac_status=$?
+   cat conftest.err >&5
+   echo "$as_me:$LINENO: \$? = $ac_status" >&5
+   if (exit $ac_status) && test -s "$ac_outfile"; then
+     # The compiler can only warn and ignore the option if not recognized
+     # So say no if there are warnings other than the usual output.
+     $ECHO "$_lt_compiler_boilerplate" | $SED '/^$/d' >conftest.exp
+     $SED '/^$/d; /^ *+/d' conftest.err >conftest.er2
+     if test ! -s conftest.er2 || diff conftest.exp conftest.er2 >/dev/null; then
+       lt_cv_prog_compiler_rtti_exceptions=yes
+     fi
+   fi
+   $RM conftest*
+
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $lt_cv_prog_compiler_rtti_exceptions" >&5
+$as_echo "$lt_cv_prog_compiler_rtti_exceptions" >&6; }
+
+if test yes = "$lt_cv_prog_compiler_rtti_exceptions"; then
+    lt_prog_compiler_no_builtin_flag="$lt_prog_compiler_no_builtin_flag -fno-rtti -fno-exceptions"
+else
+    :
+fi
+
+fi
+
+
+
+
+
+
+  lt_prog_compiler_wl=
+lt_prog_compiler_pic=
+lt_prog_compiler_static=
+
+
+  if test yes = "$GCC"; then
+    lt_prog_compiler_wl='-Wl,'
+    lt_prog_compiler_static='-static'
+
+    case $host_os in
+      aix*)
+      # All AIX code is PIC.
+      if test ia64 = "$host_cpu"; then
+	# AIX 5 now supports IA64 processor
+	lt_prog_compiler_static='-Bstatic'
+      fi
+      lt_prog_compiler_pic='-fPIC'
+      ;;
+
+    amigaos*)
+      case $host_cpu in
+      powerpc)
+            # see comment about AmigaOS4 .so support
+            lt_prog_compiler_pic='-fPIC'
+        ;;
+      m68k)
+            # FIXME: we need at least 68020 code to build shared libraries, but
+            # adding the '-m68020' flag to GCC prevents building anything better,
+            # like '-m68040'.
+            lt_prog_compiler_pic='-m68020 -resident32 -malways-restore-a4'
+        ;;
+      esac
+      ;;
+
+    beos* | irix5* | irix6* | nonstopux* | osf3* | osf4* | osf5*)
+      # PIC is the default for these OSes.
+      ;;
+
+    mingw* | cygwin* | pw32* | os2* | cegcc*)
+      # This hack is so that the source file can tell whether it is being
+      # built for inclusion in a dll (and should export symbols for example).
+      # Although the cygwin gcc ignores -fPIC, still need this for old-style
+      # (--disable-auto-import) libraries
+      lt_prog_compiler_pic='-DDLL_EXPORT'
+      case $host_os in
+      os2*)
+	lt_prog_compiler_static='$wl-static'
+	;;
+      esac
+      ;;
+
+    darwin* | rhapsody*)
+      # PIC is the default on this platform
+      # Common symbols not allowed in MH_DYLIB files
+      lt_prog_compiler_pic='-fno-common'
+      ;;
+
+    haiku*)
+      # PIC is the default for Haiku.
+      # The "-static" flag exists, but is broken.
+      lt_prog_compiler_static=
+      ;;
+
+    hpux*)
+      # PIC is the default for 64-bit PA HP-UX, but not for 32-bit
+      # PA HP-UX.  On IA64 HP-UX, PIC is the default but the pic flag
+      # sets the default TLS model and affects inlining.
+      case $host_cpu in
+      hppa*64*)
+	# +Z the default
+	;;
+      *)
+	lt_prog_compiler_pic='-fPIC'
+	;;
+      esac
+      ;;
+
+    interix[3-9]*)
+      # Interix 3.x gcc -fpic/-fPIC options generate broken code.
+      # Instead, we relocate shared libraries at runtime.
+      ;;
+
+    msdosdjgpp*)
+      # Just because we use GCC doesn't mean we suddenly get shared libraries
+      # on systems that don't support them.
+      lt_prog_compiler_can_build_shared=no
+      enable_shared=no
+      ;;
+
+    *nto* | *qnx*)
+      # QNX uses GNU C++, but need to define -shared option too, otherwise
+      # it will coredump.
+      lt_prog_compiler_pic='-fPIC -shared'
+      ;;
+
+    sysv4*MP*)
+      if test -d /usr/nec; then
+	lt_prog_compiler_pic=-Kconform_pic
+      fi
+      ;;
+
+    *)
+      lt_prog_compiler_pic='-fPIC'
+      ;;
+    esac
+
+    case $cc_basename in
+    nvcc*) # Cuda Compiler Driver 2.2
+      lt_prog_compiler_wl='-Xlinker '
+      if test -n "$lt_prog_compiler_pic"; then
+        lt_prog_compiler_pic="-Xcompiler $lt_prog_compiler_pic"
+      fi
+      ;;
+    esac
+  else
+    # PORTME Check for flag to pass linker flags through the system compiler.
+    case $host_os in
+    aix*)
+      lt_prog_compiler_wl='-Wl,'
+      if test ia64 = "$host_cpu"; then
+	# AIX 5 now supports IA64 processor
+	lt_prog_compiler_static='-Bstatic'
+      else
+	lt_prog_compiler_static='-bnso -bI:/lib/syscalls.exp'
+      fi
+      ;;
+
+    darwin* | rhapsody*)
+      # PIC is the default on this platform
+      # Common symbols not allowed in MH_DYLIB files
+      lt_prog_compiler_pic='-fno-common'
+      case $cc_basename in
+      nagfor*)
+        # NAG Fortran compiler
+        lt_prog_compiler_wl='-Wl,-Wl,,'
+        lt_prog_compiler_pic='-PIC'
+        lt_prog_compiler_static='-Bstatic'
+        ;;
+      esac
+      ;;
+
+    mingw* | cygwin* | pw32* | os2* | cegcc*)
+      # This hack is so that the source file can tell whether it is being
+      # built for inclusion in a dll (and should export symbols for example).
+      lt_prog_compiler_pic='-DDLL_EXPORT'
+      case $host_os in
+      os2*)
+	lt_prog_compiler_static='$wl-static'
+	;;
+      esac
+      ;;
+
+    hpux9* | hpux10* | hpux11*)
+      lt_prog_compiler_wl='-Wl,'
+      # PIC is the default for IA64 HP-UX and 64-bit HP-UX, but
+      # not for PA HP-UX.
+      case $host_cpu in
+      hppa*64*|ia64*)
+	# +Z the default
+	;;
+      *)
+	lt_prog_compiler_pic='+Z'
+	;;
+      esac
+      # Is there a better lt_prog_compiler_static that works with the bundled CC?
+      lt_prog_compiler_static='$wl-a ${wl}archive'
+      ;;
+
+    irix5* | irix6* | nonstopux*)
+      lt_prog_compiler_wl='-Wl,'
+      # PIC (with -KPIC) is the default.
+      lt_prog_compiler_static='-non_shared'
+      ;;
+
+    linux* | k*bsd*-gnu | kopensolaris*-gnu | gnu*)
+      case $cc_basename in
+      # old Intel for x86_64, which still supported -KPIC.
+      ecc*)
+	lt_prog_compiler_wl='-Wl,'
+	lt_prog_compiler_pic='-KPIC'
+	lt_prog_compiler_static='-static'
+        ;;
+      # icc used to be incompatible with GCC.
+      # ICC 10 doesn't accept -KPIC any more.
+      icc* | ifort*)
+	lt_prog_compiler_wl='-Wl,'
+	lt_prog_compiler_pic='-fPIC'
+	lt_prog_compiler_static='-static'
+        ;;
+      # Lahey Fortran 8.1.
+      lf95*)
+	lt_prog_compiler_wl='-Wl,'
+	lt_prog_compiler_pic='--shared'
+	lt_prog_compiler_static='--static'
+	;;
+      nagfor*)
+	# NAG Fortran compiler
+	lt_prog_compiler_wl='-Wl,-Wl,,'
+	lt_prog_compiler_pic='-PIC'
+	lt_prog_compiler_static='-Bstatic'
+	;;
+      tcc*)
+	# Fabrice Bellard et al's Tiny C Compiler
+	lt_prog_compiler_wl='-Wl,'
+	lt_prog_compiler_pic='-fPIC'
+	lt_prog_compiler_static='-static'
+	;;
+      pgcc* | pgf77* | pgf90* | pgf95* | pgfortran*)
+        # Portland Group compilers (*not* the Pentium gcc compiler,
+	# which looks to be a dead project)
+	lt_prog_compiler_wl='-Wl,'
+	lt_prog_compiler_pic='-fpic'
+	lt_prog_compiler_static='-Bstatic'
+        ;;
+      ccc*)
+        lt_prog_compiler_wl='-Wl,'
+        # All Alpha code is PIC.
+        lt_prog_compiler_static='-non_shared'
+        ;;
+      xl* | bgxl* | bgf* | mpixl*)
+	# IBM XL C 8.0/Fortran 10.1, 11.1 on PPC and BlueGene
+	lt_prog_compiler_wl='-Wl,'
+	lt_prog_compiler_pic='-qpic'
+	lt_prog_compiler_static='-qstaticlink'
+	;;
+      *)
+	case `$CC -V 2>&1 | sed 5q` in
+	*Sun\ Ceres\ Fortran* | *Sun*Fortran*\ [1-7].* | *Sun*Fortran*\ 8.[0-3]*)
+	  # Sun Fortran 8.3 passes all unrecognized flags to the linker
+	  lt_prog_compiler_pic='-KPIC'
+	  lt_prog_compiler_static='-Bstatic'
+	  lt_prog_compiler_wl=''
+	  ;;
+	*Sun\ F* | *Sun*Fortran*)
+	  lt_prog_compiler_pic='-KPIC'
+	  lt_prog_compiler_static='-Bstatic'
+	  lt_prog_compiler_wl='-Qoption ld '
+	  ;;
+	*Sun\ C*)
+	  # Sun C 5.9
+	  lt_prog_compiler_pic='-KPIC'
+	  lt_prog_compiler_static='-Bstatic'
+	  lt_prog_compiler_wl='-Wl,'
+	  ;;
+        *Intel*\ [CF]*Compiler*)
+	  lt_prog_compiler_wl='-Wl,'
+	  lt_prog_compiler_pic='-fPIC'
+	  lt_prog_compiler_static='-static'
+	  ;;
+	*Portland\ Group*)
+	  lt_prog_compiler_wl='-Wl,'
+	  lt_prog_compiler_pic='-fpic'
+	  lt_prog_compiler_static='-Bstatic'
+	  ;;
+	esac
+	;;
+      esac
+      ;;
+
+    newsos6)
+      lt_prog_compiler_pic='-KPIC'
+      lt_prog_compiler_static='-Bstatic'
+      ;;
+
+    *nto* | *qnx*)
+      # QNX uses GNU C++, but need to define -shared option too, otherwise
+      # it will coredump.
+      lt_prog_compiler_pic='-fPIC -shared'
+      ;;
+
+    osf3* | osf4* | osf5*)
+      lt_prog_compiler_wl='-Wl,'
+      # All OSF/1 code is PIC.
+      lt_prog_compiler_static='-non_shared'
+      ;;
+
+    rdos*)
+      lt_prog_compiler_static='-non_shared'
+      ;;
+
+    solaris*)
+      lt_prog_compiler_pic='-KPIC'
+      lt_prog_compiler_static='-Bstatic'
+      case $cc_basename in
+      f77* | f90* | f95* | sunf77* | sunf90* | sunf95*)
+	lt_prog_compiler_wl='-Qoption ld ';;
+      *)
+	lt_prog_compiler_wl='-Wl,';;
+      esac
+      ;;
+
+    sunos4*)
+      lt_prog_compiler_wl='-Qoption ld '
+      lt_prog_compiler_pic='-PIC'
+      lt_prog_compiler_static='-Bstatic'
+      ;;
+
+    sysv4 | sysv4.2uw2* | sysv4.3*)
+      lt_prog_compiler_wl='-Wl,'
+      lt_prog_compiler_pic='-KPIC'
+      lt_prog_compiler_static='-Bstatic'
+      ;;
+
+    sysv4*MP*)
+      if test -d /usr/nec; then
+	lt_prog_compiler_pic='-Kconform_pic'
+	lt_prog_compiler_static='-Bstatic'
+      fi
+      ;;
+
+    sysv5* | unixware* | sco3.2v5* | sco5v6* | OpenUNIX*)
+      lt_prog_compiler_wl='-Wl,'
+      lt_prog_compiler_pic='-KPIC'
+      lt_prog_compiler_static='-Bstatic'
+      ;;
+
+    unicos*)
+      lt_prog_compiler_wl='-Wl,'
+      lt_prog_compiler_can_build_shared=no
+      ;;
+
+    uts4*)
+      lt_prog_compiler_pic='-pic'
+      lt_prog_compiler_static='-Bstatic'
+      ;;
+
+    *)
+      lt_prog_compiler_can_build_shared=no
+      ;;
+    esac
+  fi
+
+case $host_os in
+  # For platforms that do not support PIC, -DPIC is meaningless:
+  *djgpp*)
+    lt_prog_compiler_pic=
+    ;;
+  *)
+    lt_prog_compiler_pic="$lt_prog_compiler_pic -DPIC"
+    ;;
+esac
+
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $compiler option to produce PIC" >&5
+$as_echo_n "checking for $compiler option to produce PIC... " >&6; }
+if ${lt_cv_prog_compiler_pic+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  lt_cv_prog_compiler_pic=$lt_prog_compiler_pic
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $lt_cv_prog_compiler_pic" >&5
+$as_echo "$lt_cv_prog_compiler_pic" >&6; }
+lt_prog_compiler_pic=$lt_cv_prog_compiler_pic
+
+#
+# Check to make sure the PIC flag actually works.
+#
+if test -n "$lt_prog_compiler_pic"; then
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking if $compiler PIC flag $lt_prog_compiler_pic works" >&5
+$as_echo_n "checking if $compiler PIC flag $lt_prog_compiler_pic works... " >&6; }
+if ${lt_cv_prog_compiler_pic_works+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  lt_cv_prog_compiler_pic_works=no
+   ac_outfile=conftest.$ac_objext
+   echo "$lt_simple_compile_test_code" > conftest.$ac_ext
+   lt_compiler_flag="$lt_prog_compiler_pic -DPIC"  ## exclude from sc_useless_quotes_in_assignment
+   # Insert the option either (1) after the last *FLAGS variable, or
+   # (2) before a word containing "conftest.", or (3) at the end.
+   # Note that $ac_compile itself does not contain backslashes and begins
+   # with a dollar sign (not a hyphen), so the echo should work correctly.
+   # The option is referenced via a variable to avoid confusing sed.
+   lt_compile=`echo "$ac_compile" | $SED \
+   -e 's:.*FLAGS}\{0,1\} :&$lt_compiler_flag :; t' \
+   -e 's: [^ ]*conftest\.: $lt_compiler_flag&:; t' \
+   -e 's:$: $lt_compiler_flag:'`
+   (eval echo "\"\$as_me:$LINENO: $lt_compile\"" >&5)
+   (eval "$lt_compile" 2>conftest.err)
+   ac_status=$?
+   cat conftest.err >&5
+   echo "$as_me:$LINENO: \$? = $ac_status" >&5
+   if (exit $ac_status) && test -s "$ac_outfile"; then
+     # The compiler can only warn and ignore the option if not recognized
+     # So say no if there are warnings other than the usual output.
+     $ECHO "$_lt_compiler_boilerplate" | $SED '/^$/d' >conftest.exp
+     $SED '/^$/d; /^ *+/d' conftest.err >conftest.er2
+     if test ! -s conftest.er2 || diff conftest.exp conftest.er2 >/dev/null; then
+       lt_cv_prog_compiler_pic_works=yes
+     fi
+   fi
+   $RM conftest*
+
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $lt_cv_prog_compiler_pic_works" >&5
+$as_echo "$lt_cv_prog_compiler_pic_works" >&6; }
+
+if test yes = "$lt_cv_prog_compiler_pic_works"; then
+    case $lt_prog_compiler_pic in
+     "" | " "*) ;;
+     *) lt_prog_compiler_pic=" $lt_prog_compiler_pic" ;;
+     esac
+else
+    lt_prog_compiler_pic=
+     lt_prog_compiler_can_build_shared=no
+fi
+
+fi
+
+
+
+
+
+
+
+
+
+
+
+#
+# Check to make sure the static flag actually works.
+#
+wl=$lt_prog_compiler_wl eval lt_tmp_static_flag=\"$lt_prog_compiler_static\"
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking if $compiler static flag $lt_tmp_static_flag works" >&5
+$as_echo_n "checking if $compiler static flag $lt_tmp_static_flag works... " >&6; }
+if ${lt_cv_prog_compiler_static_works+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  lt_cv_prog_compiler_static_works=no
+   save_LDFLAGS=$LDFLAGS
+   LDFLAGS="$LDFLAGS $lt_tmp_static_flag"
+   echo "$lt_simple_link_test_code" > conftest.$ac_ext
+   if (eval $ac_link 2>conftest.err) && test -s conftest$ac_exeext; then
+     # The linker can only warn and ignore the option if not recognized
+     # So say no if there are warnings
+     if test -s conftest.err; then
+       # Append any errors to the config.log.
+       cat conftest.err 1>&5
+       $ECHO "$_lt_linker_boilerplate" | $SED '/^$/d' > conftest.exp
+       $SED '/^$/d; /^ *+/d' conftest.err >conftest.er2
+       if diff conftest.exp conftest.er2 >/dev/null; then
+         lt_cv_prog_compiler_static_works=yes
+       fi
+     else
+       lt_cv_prog_compiler_static_works=yes
+     fi
+   fi
+   $RM -r conftest*
+   LDFLAGS=$save_LDFLAGS
+
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $lt_cv_prog_compiler_static_works" >&5
+$as_echo "$lt_cv_prog_compiler_static_works" >&6; }
+
+if test yes = "$lt_cv_prog_compiler_static_works"; then
+    :
+else
+    lt_prog_compiler_static=
+fi
+
+
+
+
+
+
+
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking if $compiler supports -c -o file.$ac_objext" >&5
+$as_echo_n "checking if $compiler supports -c -o file.$ac_objext... " >&6; }
+if ${lt_cv_prog_compiler_c_o+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  lt_cv_prog_compiler_c_o=no
+   $RM -r conftest 2>/dev/null
+   mkdir conftest
+   cd conftest
+   mkdir out
+   echo "$lt_simple_compile_test_code" > conftest.$ac_ext
+
+   lt_compiler_flag="-o out/conftest2.$ac_objext"
+   # Insert the option either (1) after the last *FLAGS variable, or
+   # (2) before a word containing "conftest.", or (3) at the end.
+   # Note that $ac_compile itself does not contain backslashes and begins
+   # with a dollar sign (not a hyphen), so the echo should work correctly.
+   lt_compile=`echo "$ac_compile" | $SED \
+   -e 's:.*FLAGS}\{0,1\} :&$lt_compiler_flag :; t' \
+   -e 's: [^ ]*conftest\.: $lt_compiler_flag&:; t' \
+   -e 's:$: $lt_compiler_flag:'`
+   (eval echo "\"\$as_me:$LINENO: $lt_compile\"" >&5)
+   (eval "$lt_compile" 2>out/conftest.err)
+   ac_status=$?
+   cat out/conftest.err >&5
+   echo "$as_me:$LINENO: \$? = $ac_status" >&5
+   if (exit $ac_status) && test -s out/conftest2.$ac_objext
+   then
+     # The compiler can only warn and ignore the option if not recognized
+     # So say no if there are warnings
+     $ECHO "$_lt_compiler_boilerplate" | $SED '/^$/d' > out/conftest.exp
+     $SED '/^$/d; /^ *+/d' out/conftest.err >out/conftest.er2
+     if test ! -s out/conftest.er2 || diff out/conftest.exp out/conftest.er2 >/dev/null; then
+       lt_cv_prog_compiler_c_o=yes
+     fi
+   fi
+   chmod u+w . 2>&5
+   $RM conftest*
+   # SGI C++ compiler will create directory out/ii_files/ for
+   # template instantiation
+   test -d out/ii_files && $RM out/ii_files/* && rmdir out/ii_files
+   $RM out/* && rmdir out
+   cd ..
+   $RM -r conftest
+   $RM conftest*
+
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $lt_cv_prog_compiler_c_o" >&5
+$as_echo "$lt_cv_prog_compiler_c_o" >&6; }
+
+
+
+
+
+
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking if $compiler supports -c -o file.$ac_objext" >&5
+$as_echo_n "checking if $compiler supports -c -o file.$ac_objext... " >&6; }
+if ${lt_cv_prog_compiler_c_o+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  lt_cv_prog_compiler_c_o=no
+   $RM -r conftest 2>/dev/null
+   mkdir conftest
+   cd conftest
+   mkdir out
+   echo "$lt_simple_compile_test_code" > conftest.$ac_ext
+
+   lt_compiler_flag="-o out/conftest2.$ac_objext"
+   # Insert the option either (1) after the last *FLAGS variable, or
+   # (2) before a word containing "conftest.", or (3) at the end.
+   # Note that $ac_compile itself does not contain backslashes and begins
+   # with a dollar sign (not a hyphen), so the echo should work correctly.
+   lt_compile=`echo "$ac_compile" | $SED \
+   -e 's:.*FLAGS}\{0,1\} :&$lt_compiler_flag :; t' \
+   -e 's: [^ ]*conftest\.: $lt_compiler_flag&:; t' \
+   -e 's:$: $lt_compiler_flag:'`
+   (eval echo "\"\$as_me:$LINENO: $lt_compile\"" >&5)
+   (eval "$lt_compile" 2>out/conftest.err)
+   ac_status=$?
+   cat out/conftest.err >&5
+   echo "$as_me:$LINENO: \$? = $ac_status" >&5
+   if (exit $ac_status) && test -s out/conftest2.$ac_objext
+   then
+     # The compiler can only warn and ignore the option if not recognized
+     # So say no if there are warnings
+     $ECHO "$_lt_compiler_boilerplate" | $SED '/^$/d' > out/conftest.exp
+     $SED '/^$/d; /^ *+/d' out/conftest.err >out/conftest.er2
+     if test ! -s out/conftest.er2 || diff out/conftest.exp out/conftest.er2 >/dev/null; then
+       lt_cv_prog_compiler_c_o=yes
+     fi
+   fi
+   chmod u+w . 2>&5
+   $RM conftest*
+   # SGI C++ compiler will create directory out/ii_files/ for
+   # template instantiation
+   test -d out/ii_files && $RM out/ii_files/* && rmdir out/ii_files
+   $RM out/* && rmdir out
+   cd ..
+   $RM -r conftest
+   $RM conftest*
+
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $lt_cv_prog_compiler_c_o" >&5
+$as_echo "$lt_cv_prog_compiler_c_o" >&6; }
+
+
+
+
+hard_links=nottested
+if test no = "$lt_cv_prog_compiler_c_o" && test no != "$need_locks"; then
+  # do not overwrite the value of need_locks provided by the user
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking if we can lock with hard links" >&5
+$as_echo_n "checking if we can lock with hard links... " >&6; }
+  hard_links=yes
+  $RM conftest*
+  ln conftest.a conftest.b 2>/dev/null && hard_links=no
+  touch conftest.a
+  ln conftest.a conftest.b 2>&5 || hard_links=no
+  ln conftest.a conftest.b 2>/dev/null && hard_links=no
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $hard_links" >&5
+$as_echo "$hard_links" >&6; }
+  if test no = "$hard_links"; then
+    { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: '$CC' does not support '-c -o', so 'make -j' may be unsafe" >&5
+$as_echo "$as_me: WARNING: '$CC' does not support '-c -o', so 'make -j' may be unsafe" >&2;}
+    need_locks=warn
+  fi
+else
+  need_locks=no
+fi
+
+
+
+
+
+
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether the $compiler linker ($LD) supports shared libraries" >&5
+$as_echo_n "checking whether the $compiler linker ($LD) supports shared libraries... " >&6; }
+
+  runpath_var=
+  allow_undefined_flag=
+  always_export_symbols=no
+  archive_cmds=
+  archive_expsym_cmds=
+  compiler_needs_object=no
+  enable_shared_with_static_runtimes=no
+  export_dynamic_flag_spec=
+  export_symbols_cmds='$NM $libobjs $convenience | $global_symbol_pipe | $SED '\''s/.* //'\'' | sort | uniq > $export_symbols'
+  hardcode_automatic=no
+  hardcode_direct=no
+  hardcode_direct_absolute=no
+  hardcode_libdir_flag_spec=
+  hardcode_libdir_separator=
+  hardcode_minus_L=no
+  hardcode_shlibpath_var=unsupported
+  inherit_rpath=no
+  link_all_deplibs=unknown
+  module_cmds=
+  module_expsym_cmds=
+  old_archive_from_new_cmds=
+  old_archive_from_expsyms_cmds=
+  thread_safe_flag_spec=
+  whole_archive_flag_spec=
+  # include_expsyms should be a list of space-separated symbols to be *always*
+  # included in the symbol list
+  include_expsyms=
+  # exclude_expsyms can be an extended regexp of symbols to exclude
+  # it will be wrapped by ' (' and ')$', so one must not match beginning or
+  # end of line.  Example: 'a|bc|.*d.*' will exclude the symbols 'a' and 'bc',
+  # as well as any symbol that contains 'd'.
+  exclude_expsyms='_GLOBAL_OFFSET_TABLE_|_GLOBAL__F[ID]_.*'
+  # Although _GLOBAL_OFFSET_TABLE_ is a valid symbol C name, most a.out
+  # platforms (ab)use it in PIC code, but their linkers get confused if
+  # the symbol is explicitly referenced.  Since portable code cannot
+  # rely on this symbol name, it's probably fine to never include it in
+  # preloaded symbol tables.
+  # Exclude shared library initialization/finalization symbols.
+  extract_expsyms_cmds=
+
+  case $host_os in
+  cygwin* | mingw* | pw32* | cegcc*)
+    # FIXME: the MSVC++ port hasn't been tested in a loooong time
+    # When not using gcc, we currently assume that we are using
+    # Microsoft Visual C++.
+    if test yes != "$GCC"; then
+      with_gnu_ld=no
+    fi
+    ;;
+  interix*)
+    # we just hope/assume this is gcc and not c89 (= MSVC++)
+    with_gnu_ld=yes
+    ;;
+  openbsd* | bitrig*)
+    with_gnu_ld=no
+    ;;
+  esac
+
+  ld_shlibs=yes
+
+  # On some targets, GNU ld is compatible enough with the native linker
+  # that we're better off using the native interface for both.
+  lt_use_gnu_ld_interface=no
+  if test yes = "$with_gnu_ld"; then
+    case $host_os in
+      aix*)
+	# The AIX port of GNU ld has always aspired to compatibility
+	# with the native linker.  However, as the warning in the GNU ld
+	# block says, versions before 2.19.5* couldn't really create working
+	# shared libraries, regardless of the interface used.
+	case `$LD -v 2>&1` in
+	  *\ \(GNU\ Binutils\)\ 2.19.5*) ;;
+	  *\ \(GNU\ Binutils\)\ 2.[2-9]*) ;;
+	  *\ \(GNU\ Binutils\)\ [3-9]*) ;;
+	  *)
+	    lt_use_gnu_ld_interface=yes
+	    ;;
+	esac
+	;;
+      *)
+	lt_use_gnu_ld_interface=yes
+	;;
+    esac
+  fi
+
+  if test yes = "$lt_use_gnu_ld_interface"; then
+    # If archive_cmds runs LD, not CC, wlarc should be empty
+    wlarc='$wl'
+
+    # Set some defaults for GNU ld with shared library support. These
+    # are reset later if shared libraries are not supported. Putting them
+    # here allows them to be overridden if necessary.
+    runpath_var=LD_RUN_PATH
+    hardcode_libdir_flag_spec='$wl-rpath $wl$libdir'
+    export_dynamic_flag_spec='$wl--export-dynamic'
+    # ancient GNU ld didn't support --whole-archive et. al.
+    if $LD --help 2>&1 | $GREP 'no-whole-archive' > /dev/null; then
+      whole_archive_flag_spec=$wlarc'--whole-archive$convenience '$wlarc'--no-whole-archive'
+    else
+      whole_archive_flag_spec=
+    fi
+    supports_anon_versioning=no
+    case `$LD -v | $SED -e 's/(^)\+)\s\+//' 2>&1` in
+      *GNU\ gold*) supports_anon_versioning=yes ;;
+      *\ [01].* | *\ 2.[0-9].* | *\ 2.10.*) ;; # catch versions < 2.11
+      *\ 2.11.93.0.2\ *) supports_anon_versioning=yes ;; # RH7.3 ...
+      *\ 2.11.92.0.12\ *) supports_anon_versioning=yes ;; # Mandrake 8.2 ...
+      *\ 2.11.*) ;; # other 2.11 versions
+      *) supports_anon_versioning=yes ;;
+    esac
+
+    # See if GNU ld supports shared libraries.
+    case $host_os in
+    aix[3-9]*)
+      # On AIX/PPC, the GNU linker is very broken
+      if test ia64 != "$host_cpu"; then
+	ld_shlibs=no
+	cat <<_LT_EOF 1>&2
+
+*** Warning: the GNU linker, at least up to release 2.19, is reported
+*** to be unable to reliably create shared libraries on AIX.
+*** Therefore, libtool is disabling shared libraries support.  If you
+*** really care for shared libraries, you may want to install binutils
+*** 2.20 or above, or modify your PATH so that a non-GNU linker is found.
+*** You will then need to restart the configuration process.
+
+_LT_EOF
+      fi
+      ;;
+
+    amigaos*)
+      case $host_cpu in
+      powerpc)
+            # see comment about AmigaOS4 .so support
+            archive_cmds='$CC -shared $libobjs $deplibs $compiler_flags $wl-soname $wl$soname -o $lib'
+            archive_expsym_cmds=''
+        ;;
+      m68k)
+            archive_cmds='$RM $output_objdir/a2ixlibrary.data~$ECHO "#define NAME $libname" > $output_objdir/a2ixlibrary.data~$ECHO "#define LIBRARY_ID 1" >> $output_objdir/a2ixlibrary.data~$ECHO "#define VERSION $major" >> $output_objdir/a2ixlibrary.data~$ECHO "#define REVISION $revision" >> $output_objdir/a2ixlibrary.data~$AR $AR_FLAGS $lib $libobjs~$RANLIB $lib~(cd $output_objdir && a2ixlibrary -32)'
+            hardcode_libdir_flag_spec='-L$libdir'
+            hardcode_minus_L=yes
+        ;;
+      esac
+      ;;
+
+    beos*)
+      if $LD --help 2>&1 | $GREP ': supported targets:.* elf' > /dev/null; then
+	allow_undefined_flag=unsupported
+	# Joseph Beckenbach <jrb3@best.com> says some releases of gcc
+	# support --undefined.  This deserves some investigation.  FIXME
+	archive_cmds='$CC -nostart $libobjs $deplibs $compiler_flags $wl-soname $wl$soname -o $lib'
+      else
+	ld_shlibs=no
+      fi
+      ;;
+
+    cygwin* | mingw* | pw32* | cegcc*)
+      # _LT_TAGVAR(hardcode_libdir_flag_spec, ) is actually meaningless,
+      # as there is no search path for DLLs.
+      hardcode_libdir_flag_spec='-L$libdir'
+      export_dynamic_flag_spec='$wl--export-all-symbols'
+      allow_undefined_flag=unsupported
+      always_export_symbols=no
+      enable_shared_with_static_runtimes=yes
+      export_symbols_cmds='$NM $libobjs $convenience | $global_symbol_pipe | $SED -e '\''/^[BCDGRS][ ]/s/.*[ ]\([^ ]*\)/\1 DATA/;s/^.*[ ]__nm__\([^ ]*\)[ ][^ ]*/\1 DATA/;/^I[ ]/d;/^[AITW][ ]/s/.* //'\'' | sort | uniq > $export_symbols'
+      exclude_expsyms='[_]+GLOBAL_OFFSET_TABLE_|[_]+GLOBAL__[FID]_.*|[_]+head_[A-Za-z0-9_]+_dll|[A-Za-z0-9_]+_dll_iname'
+
+      if $LD --help 2>&1 | $GREP 'auto-import' > /dev/null; then
+        archive_cmds='$CC -shared $libobjs $deplibs $compiler_flags -o $output_objdir/$soname $wl--enable-auto-image-base -Xlinker --out-implib -Xlinker $lib'
+	# If the export-symbols file already is a .def file, use it as
+	# is; otherwise, prepend EXPORTS...
+	archive_expsym_cmds='if   test DEF = "`$SED -n     -e '\''s/^[	 ]*//'\''     -e '\''/^\(;.*\)*$/d'\''     -e '\''s/^\(EXPORTS\|LIBRARY\)\([	 ].*\)*$/DEF/p'\''     -e q     $export_symbols`" ; then
+          cp $export_symbols $output_objdir/$soname.def;
+        else
+          echo EXPORTS > $output_objdir/$soname.def;
+          cat $export_symbols >> $output_objdir/$soname.def;
+        fi~
+        $CC -shared $output_objdir/$soname.def $libobjs $deplibs $compiler_flags -o $output_objdir/$soname $wl--enable-auto-image-base -Xlinker --out-implib -Xlinker $lib'
+      else
+	ld_shlibs=no
+      fi
+      ;;
+
+    haiku*)
+      archive_cmds='$CC -shared $libobjs $deplibs $compiler_flags $wl-soname $wl$soname -o $lib'
+      link_all_deplibs=yes
+      ;;
+
+    os2*)
+      hardcode_libdir_flag_spec='-L$libdir'
+      hardcode_minus_L=yes
+      allow_undefined_flag=unsupported
+      shrext_cmds=.dll
+      archive_cmds='$ECHO "LIBRARY ${soname%$shared_ext} INITINSTANCE TERMINSTANCE" > $output_objdir/$libname.def~
+	$ECHO "DESCRIPTION \"$libname\"" >> $output_objdir/$libname.def~
+	$ECHO "DATA MULTIPLE NONSHARED" >> $output_objdir/$libname.def~
+	$ECHO EXPORTS >> $output_objdir/$libname.def~
+	emxexp $libobjs | $SED /"_DLL_InitTerm"/d >> $output_objdir/$libname.def~
+	$CC -Zdll -Zcrtdll -o $output_objdir/$soname $libobjs $deplibs $compiler_flags $output_objdir/$libname.def~
+	emximp -o $lib $output_objdir/$libname.def'
+      archive_expsym_cmds='$ECHO "LIBRARY ${soname%$shared_ext} INITINSTANCE TERMINSTANCE" > $output_objdir/$libname.def~
+	$ECHO "DESCRIPTION \"$libname\"" >> $output_objdir/$libname.def~
+	$ECHO "DATA MULTIPLE NONSHARED" >> $output_objdir/$libname.def~
+	$ECHO EXPORTS >> $output_objdir/$libname.def~
+	prefix_cmds="$SED"~
+	if test EXPORTS = "`$SED 1q $export_symbols`"; then
+	  prefix_cmds="$prefix_cmds -e 1d";
+	fi~
+	prefix_cmds="$prefix_cmds -e \"s/^\(.*\)$/_\1/g\""~
+	cat $export_symbols | $prefix_cmds >> $output_objdir/$libname.def~
+	$CC -Zdll -Zcrtdll -o $output_objdir/$soname $libobjs $deplibs $compiler_flags $output_objdir/$libname.def~
+	emximp -o $lib $output_objdir/$libname.def'
+      old_archive_From_new_cmds='emximp -o $output_objdir/${libname}_dll.a $output_objdir/$libname.def'
+      enable_shared_with_static_runtimes=yes
+      ;;
+
+    interix[3-9]*)
+      hardcode_direct=no
+      hardcode_shlibpath_var=no
+      hardcode_libdir_flag_spec='$wl-rpath,$libdir'
+      export_dynamic_flag_spec='$wl-E'
+      # Hack: On Interix 3.x, we cannot compile PIC because of a broken gcc.
+      # Instead, shared libraries are loaded at an image base (0x10000000 by
+      # default) and relocated if they conflict, which is a slow very memory
+      # consuming and fragmenting process.  To avoid this, we pick a random,
+      # 256 KiB-aligned image base between 0x50000000 and 0x6FFC0000 at link
+      # time.  Moving up from 0x10000000 also allows more sbrk(2) space.
+      archive_cmds='$CC -shared $pic_flag $libobjs $deplibs $compiler_flags $wl-h,$soname $wl--image-base,`expr ${RANDOM-$$} % 4096 / 2 \* 262144 + 1342177280` -o $lib'
+      archive_expsym_cmds='sed "s|^|_|" $export_symbols >$output_objdir/$soname.expsym~$CC -shared $pic_flag $libobjs $deplibs $compiler_flags $wl-h,$soname $wl--retain-symbols-file,$output_objdir/$soname.expsym $wl--image-base,`expr ${RANDOM-$$} % 4096 / 2 \* 262144 + 1342177280` -o $lib'
+      ;;
+
+    gnu* | linux* | tpf* | k*bsd*-gnu | kopensolaris*-gnu)
+      tmp_diet=no
+      if test linux-dietlibc = "$host_os"; then
+	case $cc_basename in
+	  diet\ *) tmp_diet=yes;;	# linux-dietlibc with static linking (!diet-dyn)
+	esac
+      fi
+      if $LD --help 2>&1 | $EGREP ': supported targets:.* elf' > /dev/null \
+	 && test no = "$tmp_diet"
+      then
+	tmp_addflag=' $pic_flag'
+	tmp_sharedflag='-shared'
+	case $cc_basename,$host_cpu in
+        pgcc*)				# Portland Group C compiler
+	  whole_archive_flag_spec='$wl--whole-archive`for conv in $convenience\"\"; do test  -n \"$conv\" && new_convenience=\"$new_convenience,$conv\"; done; func_echo_all \"$new_convenience\"` $wl--no-whole-archive'
+	  tmp_addflag=' $pic_flag'
+	  ;;
+	pgf77* | pgf90* | pgf95* | pgfortran*)
+					# Portland Group f77 and f90 compilers
+	  whole_archive_flag_spec='$wl--whole-archive`for conv in $convenience\"\"; do test  -n \"$conv\" && new_convenience=\"$new_convenience,$conv\"; done; func_echo_all \"$new_convenience\"` $wl--no-whole-archive'
+	  tmp_addflag=' $pic_flag -Mnomain' ;;
+	ecc*,ia64* | icc*,ia64*)	# Intel C compiler on ia64
+	  tmp_addflag=' -i_dynamic' ;;
+	efc*,ia64* | ifort*,ia64*)	# Intel Fortran compiler on ia64
+	  tmp_addflag=' -i_dynamic -nofor_main' ;;
+	ifc* | ifort*)			# Intel Fortran compiler
+	  tmp_addflag=' -nofor_main' ;;
+	lf95*)				# Lahey Fortran 8.1
+	  whole_archive_flag_spec=
+	  tmp_sharedflag='--shared' ;;
+        nagfor*)                        # NAGFOR 5.3
+          tmp_sharedflag='-Wl,-shared' ;;
+	xl[cC]* | bgxl[cC]* | mpixl[cC]*) # IBM XL C 8.0 on PPC (deal with xlf below)
+	  tmp_sharedflag='-qmkshrobj'
+	  tmp_addflag= ;;
+	nvcc*)	# Cuda Compiler Driver 2.2
+	  whole_archive_flag_spec='$wl--whole-archive`for conv in $convenience\"\"; do test  -n \"$conv\" && new_convenience=\"$new_convenience,$conv\"; done; func_echo_all \"$new_convenience\"` $wl--no-whole-archive'
+	  compiler_needs_object=yes
+	  ;;
+	esac
+	case `$CC -V 2>&1 | sed 5q` in
+	*Sun\ C*)			# Sun C 5.9
+	  whole_archive_flag_spec='$wl--whole-archive`new_convenience=; for conv in $convenience\"\"; do test -z \"$conv\" || new_convenience=\"$new_convenience,$conv\"; done; func_echo_all \"$new_convenience\"` $wl--no-whole-archive'
+	  compiler_needs_object=yes
+	  tmp_sharedflag='-G' ;;
+	*Sun\ F*)			# Sun Fortran 8.3
+	  tmp_sharedflag='-G' ;;
+	esac
+	archive_cmds='$CC '"$tmp_sharedflag""$tmp_addflag"' $libobjs $deplibs $compiler_flags $wl-soname $wl$soname -o $lib'
+
+        if test yes = "$supports_anon_versioning"; then
+          archive_expsym_cmds='echo "{ global:" > $output_objdir/$libname.ver~
+            cat $export_symbols | sed -e "s/\(.*\)/\1;/" >> $output_objdir/$libname.ver~
+            echo "local: *; };" >> $output_objdir/$libname.ver~
+            $CC '"$tmp_sharedflag""$tmp_addflag"' $libobjs $deplibs $compiler_flags $wl-soname $wl$soname $wl-version-script $wl$output_objdir/$libname.ver -o $lib'
+        fi
+
+	case $cc_basename in
+	tcc*)
+	  export_dynamic_flag_spec='-rdynamic'
+	  ;;
+	xlf* | bgf* | bgxlf* | mpixlf*)
+	  # IBM XL Fortran 10.1 on PPC cannot create shared libs itself
+	  whole_archive_flag_spec='--whole-archive$convenience --no-whole-archive'
+	  hardcode_libdir_flag_spec='$wl-rpath $wl$libdir'
+	  archive_cmds='$LD -shared $libobjs $deplibs $linker_flags -soname $soname -o $lib'
+	  if test yes = "$supports_anon_versioning"; then
+	    archive_expsym_cmds='echo "{ global:" > $output_objdir/$libname.ver~
+              cat $export_symbols | sed -e "s/\(.*\)/\1;/" >> $output_objdir/$libname.ver~
+              echo "local: *; };" >> $output_objdir/$libname.ver~
+              $LD -shared $libobjs $deplibs $linker_flags -soname $soname -version-script $output_objdir/$libname.ver -o $lib'
+	  fi
+	  ;;
+	esac
+      else
+        ld_shlibs=no
+      fi
+      ;;
+
+    netbsd*)
+      if echo __ELF__ | $CC -E - | $GREP __ELF__ >/dev/null; then
+	archive_cmds='$LD -Bshareable $libobjs $deplibs $linker_flags -o $lib'
+	wlarc=
+      else
+	archive_cmds='$CC -shared $pic_flag $libobjs $deplibs $compiler_flags $wl-soname $wl$soname -o $lib'
+	archive_expsym_cmds='$CC -shared $pic_flag $libobjs $deplibs $compiler_flags $wl-soname $wl$soname $wl-retain-symbols-file $wl$export_symbols -o $lib'
+      fi
+      ;;
+
+    solaris*)
+      if $LD -v 2>&1 | $GREP 'BFD 2\.8' > /dev/null; then
+	ld_shlibs=no
+	cat <<_LT_EOF 1>&2
+
+*** Warning: The releases 2.8.* of the GNU linker cannot reliably
+*** create shared libraries on Solaris systems.  Therefore, libtool
+*** is disabling shared libraries support.  We urge you to upgrade GNU
+*** binutils to release 2.9.1 or newer.  Another option is to modify
+*** your PATH or compiler configuration so that the native linker is
+*** used, and then restart.
+
+_LT_EOF
+      elif $LD --help 2>&1 | $GREP ': supported targets:.* elf' > /dev/null; then
+	archive_cmds='$CC -shared $pic_flag $libobjs $deplibs $compiler_flags $wl-soname $wl$soname -o $lib'
+	archive_expsym_cmds='$CC -shared $pic_flag $libobjs $deplibs $compiler_flags $wl-soname $wl$soname $wl-retain-symbols-file $wl$export_symbols -o $lib'
+      else
+	ld_shlibs=no
+      fi
+      ;;
+
+    sysv5* | sco3.2v5* | sco5v6* | unixware* | OpenUNIX*)
+      case `$LD -v 2>&1` in
+        *\ [01].* | *\ 2.[0-9].* | *\ 2.1[0-5].*)
+	ld_shlibs=no
+	cat <<_LT_EOF 1>&2
+
+*** Warning: Releases of the GNU linker prior to 2.16.91.0.3 cannot
+*** reliably create shared libraries on SCO systems.  Therefore, libtool
+*** is disabling shared libraries support.  We urge you to upgrade GNU
+*** binutils to release 2.16.91.0.3 or newer.  Another option is to modify
+*** your PATH or compiler configuration so that the native linker is
+*** used, and then restart.
+
+_LT_EOF
+	;;
+	*)
+	  # For security reasons, it is highly recommended that you always
+	  # use absolute paths for naming shared libraries, and exclude the
+	  # DT_RUNPATH tag from executables and libraries.  But doing so
+	  # requires that you compile everything twice, which is a pain.
+	  if $LD --help 2>&1 | $GREP ': supported targets:.* elf' > /dev/null; then
+	    hardcode_libdir_flag_spec='$wl-rpath $wl$libdir'
+	    archive_cmds='$CC -shared $libobjs $deplibs $compiler_flags $wl-soname $wl$soname -o $lib'
+	    archive_expsym_cmds='$CC -shared $libobjs $deplibs $compiler_flags $wl-soname $wl$soname $wl-retain-symbols-file $wl$export_symbols -o $lib'
+	  else
+	    ld_shlibs=no
+	  fi
+	;;
+      esac
+      ;;
+
+    sunos4*)
+      archive_cmds='$LD -assert pure-text -Bshareable -o $lib $libobjs $deplibs $linker_flags'
+      wlarc=
+      hardcode_direct=yes
+      hardcode_shlibpath_var=no
+      ;;
+
+    *)
+      if $LD --help 2>&1 | $GREP ': supported targets:.* elf' > /dev/null; then
+	archive_cmds='$CC -shared $pic_flag $libobjs $deplibs $compiler_flags $wl-soname $wl$soname -o $lib'
+	archive_expsym_cmds='$CC -shared $pic_flag $libobjs $deplibs $compiler_flags $wl-soname $wl$soname $wl-retain-symbols-file $wl$export_symbols -o $lib'
+      else
+	ld_shlibs=no
+      fi
+      ;;
+    esac
+
+    if test no = "$ld_shlibs"; then
+      runpath_var=
+      hardcode_libdir_flag_spec=
+      export_dynamic_flag_spec=
+      whole_archive_flag_spec=
+    fi
+  else
+    # PORTME fill in a description of your system's linker (not GNU ld)
+    case $host_os in
+    aix3*)
+      allow_undefined_flag=unsupported
+      always_export_symbols=yes
+      archive_expsym_cmds='$LD -o $output_objdir/$soname $libobjs $deplibs $linker_flags -bE:$export_symbols -T512 -H512 -bM:SRE~$AR $AR_FLAGS $lib $output_objdir/$soname'
+      # Note: this linker hardcodes the directories in LIBPATH if there
+      # are no directories specified by -L.
+      hardcode_minus_L=yes
+      if test yes = "$GCC" && test -z "$lt_prog_compiler_static"; then
+	# Neither direct hardcoding nor static linking is supported with a
+	# broken collect2.
+	hardcode_direct=unsupported
+      fi
+      ;;
+
+    aix[4-9]*)
+      if test ia64 = "$host_cpu"; then
+	# On IA64, the linker does run time linking by default, so we don't
+	# have to do anything special.
+	aix_use_runtimelinking=no
+	exp_sym_flag='-Bexport'
+	no_entry_flag=
+      else
+	# If we're using GNU nm, then we don't want the "-C" option.
+	# -C means demangle to GNU nm, but means don't demangle to AIX nm.
+	# Without the "-l" option, or with the "-B" option, AIX nm treats
+	# weak defined symbols like other global defined symbols, whereas
+	# GNU nm marks them as "W".
+	# While the 'weak' keyword is ignored in the Export File, we need
+	# it in the Import File for the 'aix-soname' feature, so we have
+	# to replace the "-B" option with "-P" for AIX nm.
+	if $NM -V 2>&1 | $GREP 'GNU' > /dev/null; then
+	  export_symbols_cmds='$NM -Bpg $libobjs $convenience | awk '\''{ if (((\$ 2 == "T") || (\$ 2 == "D") || (\$ 2 == "B") || (\$ 2 == "W")) && (substr(\$ 3,1,1) != ".")) { if (\$ 2 == "W") { print \$ 3 " weak" } else { print \$ 3 } } }'\'' | sort -u > $export_symbols'
+	else
+	  export_symbols_cmds='`func_echo_all $NM | $SED -e '\''s/B\([^B]*\)$/P\1/'\''` -PCpgl $libobjs $convenience | awk '\''{ if (((\$ 2 == "T") || (\$ 2 == "D") || (\$ 2 == "B") || (\$ 2 == "W") || (\$ 2 == "V") || (\$ 2 == "Z")) && (substr(\$ 1,1,1) != ".")) { if ((\$ 2 == "W") || (\$ 2 == "V") || (\$ 2 == "Z")) { print \$ 1 " weak" } else { print \$ 1 } } }'\'' | sort -u > $export_symbols'
+	fi
+	aix_use_runtimelinking=no
+
+	# Test if we are trying to use run time linking or normal
+	# AIX style linking. If -brtl is somewhere in LDFLAGS, we
+	# have runtime linking enabled, and use it for executables.
+	# For shared libraries, we enable/disable runtime linking
+	# depending on the kind of the shared library created -
+	# when "with_aix_soname,aix_use_runtimelinking" is:
+	# "aix,no"   lib.a(lib.so.V) shared, rtl:no,  for executables
+	# "aix,yes"  lib.so          shared, rtl:yes, for executables
+	#            lib.a           static archive
+	# "both,no"  lib.so.V(shr.o) shared, rtl:yes
+	#            lib.a(lib.so.V) shared, rtl:no,  for executables
+	# "both,yes" lib.so.V(shr.o) shared, rtl:yes, for executables
+	#            lib.a(lib.so.V) shared, rtl:no
+	# "svr4,*"   lib.so.V(shr.o) shared, rtl:yes, for executables
+	#            lib.a           static archive
+	case $host_os in aix4.[23]|aix4.[23].*|aix[5-9]*)
+	  for ld_flag in $LDFLAGS; do
+	  if (test x-brtl = "x$ld_flag" || test x-Wl,-brtl = "x$ld_flag"); then
+	    aix_use_runtimelinking=yes
+	    break
+	  fi
+	  done
+	  if test svr4,no = "$with_aix_soname,$aix_use_runtimelinking"; then
+	    # With aix-soname=svr4, we create the lib.so.V shared archives only,
+	    # so we don't have lib.a shared libs to link our executables.
+	    # We have to force runtime linking in this case.
+	    aix_use_runtimelinking=yes
+	    LDFLAGS="$LDFLAGS -Wl,-brtl"
+	  fi
+	  ;;
+	esac
+
+	exp_sym_flag='-bexport'
+	no_entry_flag='-bnoentry'
+      fi
+
+      # When large executables or shared objects are built, AIX ld can
+      # have problems creating the table of contents.  If linking a library
+      # or program results in "error TOC overflow" add -mminimal-toc to
+      # CXXFLAGS/CFLAGS for g++/gcc.  In the cases where that is not
+      # enough to fix the problem, add -Wl,-bbigtoc to LDFLAGS.
+
+      archive_cmds=''
+      hardcode_direct=yes
+      hardcode_direct_absolute=yes
+      hardcode_libdir_separator=':'
+      link_all_deplibs=yes
+      file_list_spec='$wl-f,'
+      case $with_aix_soname,$aix_use_runtimelinking in
+      aix,*) ;; # traditional, no import file
+      svr4,* | *,yes) # use import file
+	# The Import File defines what to hardcode.
+	hardcode_direct=no
+	hardcode_direct_absolute=no
+	;;
+      esac
+
+      if test yes = "$GCC"; then
+	case $host_os in aix4.[012]|aix4.[012].*)
+	# We only want to do this on AIX 4.2 and lower, the check
+	# below for broken collect2 doesn't work under 4.3+
+	  collect2name=`$CC -print-prog-name=collect2`
+	  if test -f "$collect2name" &&
+	   strings "$collect2name" | $GREP resolve_lib_name >/dev/null
+	  then
+	  # We have reworked collect2
+	  :
+	  else
+	  # We have old collect2
+	  hardcode_direct=unsupported
+	  # It fails to find uninstalled libraries when the uninstalled
+	  # path is not listed in the libpath.  Setting hardcode_minus_L
+	  # to unsupported forces relinking
+	  hardcode_minus_L=yes
+	  hardcode_libdir_flag_spec='-L$libdir'
+	  hardcode_libdir_separator=
+	  fi
+	  ;;
+	esac
+	shared_flag='-shared'
+	if test yes = "$aix_use_runtimelinking"; then
+	  shared_flag="$shared_flag "'$wl-G'
+	fi
+	# Need to ensure runtime linking is disabled for the traditional
+	# shared library, or the linker may eventually find shared libraries
+	# /with/ Import File - we do not want to mix them.
+	shared_flag_aix='-shared'
+	shared_flag_svr4='-shared $wl-G'
+      else
+	# not using gcc
+	if test ia64 = "$host_cpu"; then
+	# VisualAge C++, Version 5.5 for AIX 5L for IA-64, Beta 3 Release
+	# chokes on -Wl,-G. The following line is correct:
+	  shared_flag='-G'
+	else
+	  if test yes = "$aix_use_runtimelinking"; then
+	    shared_flag='$wl-G'
+	  else
+	    shared_flag='$wl-bM:SRE'
+	  fi
+	  shared_flag_aix='$wl-bM:SRE'
+	  shared_flag_svr4='$wl-G'
+	fi
+      fi
+
+      export_dynamic_flag_spec='$wl-bexpall'
+      # It seems that -bexpall does not export symbols beginning with
+      # underscore (_), so it is better to generate a list of symbols to export.
+      always_export_symbols=yes
+      if test aix,yes = "$with_aix_soname,$aix_use_runtimelinking"; then
+	# Warning - without using the other runtime loading flags (-brtl),
+	# -berok will link without error, but may produce a broken library.
+	allow_undefined_flag='-berok'
+        # Determine the default libpath from the value encoded in an
+        # empty executable.
+        if test set = "${lt_cv_aix_libpath+set}"; then
+  aix_libpath=$lt_cv_aix_libpath
+else
+  if ${lt_cv_aix_libpath_+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+int
+main ()
+{
+
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_c_try_link "$LINENO"; then :
+
+  lt_aix_libpath_sed='
+      /Import File Strings/,/^$/ {
+	  /^0/ {
+	      s/^0  *\([^ ]*\) *$/\1/
+	      p
+	  }
+      }'
+  lt_cv_aix_libpath_=`dump -H conftest$ac_exeext 2>/dev/null | $SED -n -e "$lt_aix_libpath_sed"`
+  # Check for a 64-bit object if we didn't find anything.
+  if test -z "$lt_cv_aix_libpath_"; then
+    lt_cv_aix_libpath_=`dump -HX64 conftest$ac_exeext 2>/dev/null | $SED -n -e "$lt_aix_libpath_sed"`
+  fi
+fi
+rm -f core conftest.err conftest.$ac_objext \
+    conftest$ac_exeext conftest.$ac_ext
+  if test -z "$lt_cv_aix_libpath_"; then
+    lt_cv_aix_libpath_=/usr/lib:/lib
+  fi
+
+fi
+
+  aix_libpath=$lt_cv_aix_libpath_
+fi
+
+        hardcode_libdir_flag_spec='$wl-blibpath:$libdir:'"$aix_libpath"
+        archive_expsym_cmds='$CC -o $output_objdir/$soname $libobjs $deplibs $wl'$no_entry_flag' $compiler_flags `if test -n "$allow_undefined_flag"; then func_echo_all "$wl$allow_undefined_flag"; else :; fi` $wl'$exp_sym_flag:\$export_symbols' '$shared_flag
+      else
+	if test ia64 = "$host_cpu"; then
+	  hardcode_libdir_flag_spec='$wl-R $libdir:/usr/lib:/lib'
+	  allow_undefined_flag="-z nodefs"
+	  archive_expsym_cmds="\$CC $shared_flag"' -o $output_objdir/$soname $libobjs $deplibs '"\$wl$no_entry_flag"' $compiler_flags $wl$allow_undefined_flag '"\$wl$exp_sym_flag:\$export_symbols"
+	else
+	 # Determine the default libpath from the value encoded in an
+	 # empty executable.
+	 if test set = "${lt_cv_aix_libpath+set}"; then
+  aix_libpath=$lt_cv_aix_libpath
+else
+  if ${lt_cv_aix_libpath_+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+int
+main ()
+{
+
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_c_try_link "$LINENO"; then :
+
+  lt_aix_libpath_sed='
+      /Import File Strings/,/^$/ {
+	  /^0/ {
+	      s/^0  *\([^ ]*\) *$/\1/
+	      p
+	  }
+      }'
+  lt_cv_aix_libpath_=`dump -H conftest$ac_exeext 2>/dev/null | $SED -n -e "$lt_aix_libpath_sed"`
+  # Check for a 64-bit object if we didn't find anything.
+  if test -z "$lt_cv_aix_libpath_"; then
+    lt_cv_aix_libpath_=`dump -HX64 conftest$ac_exeext 2>/dev/null | $SED -n -e "$lt_aix_libpath_sed"`
+  fi
+fi
+rm -f core conftest.err conftest.$ac_objext \
+    conftest$ac_exeext conftest.$ac_ext
+  if test -z "$lt_cv_aix_libpath_"; then
+    lt_cv_aix_libpath_=/usr/lib:/lib
+  fi
+
+fi
+
+  aix_libpath=$lt_cv_aix_libpath_
+fi
+
+	 hardcode_libdir_flag_spec='$wl-blibpath:$libdir:'"$aix_libpath"
+	  # Warning - without using the other run time loading flags,
+	  # -berok will link without error, but may produce a broken library.
+	  no_undefined_flag=' $wl-bernotok'
+	  allow_undefined_flag=' $wl-berok'
+	  if test yes = "$with_gnu_ld"; then
+	    # We only use this code for GNU lds that support --whole-archive.
+	    whole_archive_flag_spec='$wl--whole-archive$convenience $wl--no-whole-archive'
+	  else
+	    # Exported symbols can be pulled into shared objects from archives
+	    whole_archive_flag_spec='$convenience'
+	  fi
+	  archive_cmds_need_lc=yes
+	  archive_expsym_cmds='$RM -r $output_objdir/$realname.d~$MKDIR $output_objdir/$realname.d'
+	  # -brtl affects multiple linker settings, -berok does not and is overridden later
+	  compiler_flags_filtered='`func_echo_all "$compiler_flags " | $SED -e "s%-brtl\\([, ]\\)%-berok\\1%g"`'
+	  if test svr4 != "$with_aix_soname"; then
+	    # This is similar to how AIX traditionally builds its shared libraries.
+	    archive_expsym_cmds="$archive_expsym_cmds"'~$CC '$shared_flag_aix' -o $output_objdir/$realname.d/$soname $libobjs $deplibs $wl-bnoentry '$compiler_flags_filtered'$wl-bE:$export_symbols$allow_undefined_flag~$AR $AR_FLAGS $output_objdir/$libname$release.a $output_objdir/$realname.d/$soname'
+	  fi
+	  if test aix != "$with_aix_soname"; then
+	    archive_expsym_cmds="$archive_expsym_cmds"'~$CC '$shared_flag_svr4' -o $output_objdir/$realname.d/$shared_archive_member_spec.o $libobjs $deplibs $wl-bnoentry '$compiler_flags_filtered'$wl-bE:$export_symbols$allow_undefined_flag~$STRIP -e $output_objdir/$realname.d/$shared_archive_member_spec.o~( func_echo_all "#! $soname($shared_archive_member_spec.o)"; if test shr_64 = "$shared_archive_member_spec"; then func_echo_all "# 64"; else func_echo_all "# 32"; fi; cat $export_symbols ) > $output_objdir/$realname.d/$shared_archive_member_spec.imp~$AR $AR_FLAGS $output_objdir/$soname $output_objdir/$realname.d/$shared_archive_member_spec.o $output_objdir/$realname.d/$shared_archive_member_spec.imp'
+	  else
+	    # used by -dlpreopen to get the symbols
+	    archive_expsym_cmds="$archive_expsym_cmds"'~$MV  $output_objdir/$realname.d/$soname $output_objdir'
+	  fi
+	  archive_expsym_cmds="$archive_expsym_cmds"'~$RM -r $output_objdir/$realname.d'
+	fi
+      fi
+      ;;
+
+    amigaos*)
+      case $host_cpu in
+      powerpc)
+            # see comment about AmigaOS4 .so support
+            archive_cmds='$CC -shared $libobjs $deplibs $compiler_flags $wl-soname $wl$soname -o $lib'
+            archive_expsym_cmds=''
+        ;;
+      m68k)
+            archive_cmds='$RM $output_objdir/a2ixlibrary.data~$ECHO "#define NAME $libname" > $output_objdir/a2ixlibrary.data~$ECHO "#define LIBRARY_ID 1" >> $output_objdir/a2ixlibrary.data~$ECHO "#define VERSION $major" >> $output_objdir/a2ixlibrary.data~$ECHO "#define REVISION $revision" >> $output_objdir/a2ixlibrary.data~$AR $AR_FLAGS $lib $libobjs~$RANLIB $lib~(cd $output_objdir && a2ixlibrary -32)'
+            hardcode_libdir_flag_spec='-L$libdir'
+            hardcode_minus_L=yes
+        ;;
+      esac
+      ;;
+
+    bsdi[45]*)
+      export_dynamic_flag_spec=-rdynamic
+      ;;
+
+    cygwin* | mingw* | pw32* | cegcc*)
+      # When not using gcc, we currently assume that we are using
+      # Microsoft Visual C++.
+      # hardcode_libdir_flag_spec is actually meaningless, as there is
+      # no search path for DLLs.
+      case $cc_basename in
+      cl*)
+	# Native MSVC
+	hardcode_libdir_flag_spec=' '
+	allow_undefined_flag=unsupported
+	always_export_symbols=yes
+	file_list_spec='@'
+	# Tell ltmain to make .lib files, not .a files.
+	libext=lib
+	# Tell ltmain to make .dll files, not .so files.
+	shrext_cmds=.dll
+	# FIXME: Setting linknames here is a bad hack.
+	archive_cmds='$CC -o $output_objdir/$soname $libobjs $compiler_flags $deplibs -Wl,-DLL,-IMPLIB:"$tool_output_objdir$libname.dll.lib"~linknames='
+	archive_expsym_cmds='if   test DEF = "`$SED -n     -e '\''s/^[	 ]*//'\''     -e '\''/^\(;.*\)*$/d'\''     -e '\''s/^\(EXPORTS\|LIBRARY\)\([	 ].*\)*$/DEF/p'\''     -e q     $export_symbols`" ; then
+            cp "$export_symbols" "$output_objdir/$soname.def";
+            echo "$tool_output_objdir$soname.def" > "$output_objdir/$soname.exp";
+          else
+            $SED -e '\''s/^/-link -EXPORT:/'\'' < $export_symbols > $output_objdir/$soname.exp;
+          fi~
+          $CC -o $tool_output_objdir$soname $libobjs $compiler_flags $deplibs "@$tool_output_objdir$soname.exp" -Wl,-DLL,-IMPLIB:"$tool_output_objdir$libname.dll.lib"~
+          linknames='
+	# The linker will not automatically build a static lib if we build a DLL.
+	# _LT_TAGVAR(old_archive_from_new_cmds, )='true'
+	enable_shared_with_static_runtimes=yes
+	exclude_expsyms='_NULL_IMPORT_DESCRIPTOR|_IMPORT_DESCRIPTOR_.*'
+	export_symbols_cmds='$NM $libobjs $convenience | $global_symbol_pipe | $SED -e '\''/^[BCDGRS][ ]/s/.*[ ]\([^ ]*\)/\1,DATA/'\'' | $SED -e '\''/^[AITW][ ]/s/.*[ ]//'\'' | sort | uniq > $export_symbols'
+	# Don't use ranlib
+	old_postinstall_cmds='chmod 644 $oldlib'
+	postlink_cmds='lt_outputfile="@OUTPUT@"~
+          lt_tool_outputfile="@TOOL_OUTPUT@"~
+          case $lt_outputfile in
+            *.exe|*.EXE) ;;
+            *)
+              lt_outputfile=$lt_outputfile.exe
+              lt_tool_outputfile=$lt_tool_outputfile.exe
+              ;;
+          esac~
+          if test : != "$MANIFEST_TOOL" && test -f "$lt_outputfile.manifest"; then
+            $MANIFEST_TOOL -manifest "$lt_tool_outputfile.manifest" -outputresource:"$lt_tool_outputfile" || exit 1;
+            $RM "$lt_outputfile.manifest";
+          fi'
+	;;
+      *)
+	# Assume MSVC wrapper
+	hardcode_libdir_flag_spec=' '
+	allow_undefined_flag=unsupported
+	# Tell ltmain to make .lib files, not .a files.
+	libext=lib
+	# Tell ltmain to make .dll files, not .so files.
+	shrext_cmds=.dll
+	# FIXME: Setting linknames here is a bad hack.
+	archive_cmds='$CC -o $lib $libobjs $compiler_flags `func_echo_all "$deplibs" | $SED '\''s/ -lc$//'\''` -link -dll~linknames='
+	# The linker will automatically build a .lib file if we build a DLL.
+	old_archive_from_new_cmds='true'
+	# FIXME: Should let the user specify the lib program.
+	old_archive_cmds='lib -OUT:$oldlib$oldobjs$old_deplibs'
+	enable_shared_with_static_runtimes=yes
+	;;
+      esac
+      ;;
+
+    darwin* | rhapsody*)
+
+
+  archive_cmds_need_lc=no
+  hardcode_direct=no
+  hardcode_automatic=yes
+  hardcode_shlibpath_var=unsupported
+  if test yes = "$lt_cv_ld_force_load"; then
+    whole_archive_flag_spec='`for conv in $convenience\"\"; do test  -n \"$conv\" && new_convenience=\"$new_convenience $wl-force_load,$conv\"; done; func_echo_all \"$new_convenience\"`'
+
+  else
+    whole_archive_flag_spec=''
+  fi
+  link_all_deplibs=yes
+  allow_undefined_flag=$_lt_dar_allow_undefined
+  case $cc_basename in
+     ifort*|nagfor*) _lt_dar_can_shared=yes ;;
+     *) _lt_dar_can_shared=$GCC ;;
+  esac
+  if test yes = "$_lt_dar_can_shared"; then
+    output_verbose_link_cmd=func_echo_all
+    archive_cmds="\$CC -dynamiclib \$allow_undefined_flag -o \$lib \$libobjs \$deplibs \$compiler_flags -install_name \$rpath/\$soname \$verstring $_lt_dar_single_mod$_lt_dsymutil"
+    module_cmds="\$CC \$allow_undefined_flag -o \$lib -bundle \$libobjs \$deplibs \$compiler_flags$_lt_dsymutil"
+    archive_expsym_cmds="sed 's|^|_|' < \$export_symbols > \$output_objdir/\$libname-symbols.expsym~\$CC -dynamiclib \$allow_undefined_flag -o \$lib \$libobjs \$deplibs \$compiler_flags -install_name \$rpath/\$soname \$verstring $_lt_dar_single_mod$_lt_dar_export_syms$_lt_dsymutil"
+    module_expsym_cmds="sed -e 's|^|_|' < \$export_symbols > \$output_objdir/\$libname-symbols.expsym~\$CC \$allow_undefined_flag -o \$lib -bundle \$libobjs \$deplibs \$compiler_flags$_lt_dar_export_syms$_lt_dsymutil"
+
+  else
+  ld_shlibs=no
+  fi
+
+      ;;
+
+    dgux*)
+      archive_cmds='$LD -G -h $soname -o $lib $libobjs $deplibs $linker_flags'
+      hardcode_libdir_flag_spec='-L$libdir'
+      hardcode_shlibpath_var=no
+      ;;
+
+    # FreeBSD 2.2.[012] allows us to include c++rt0.o to get C++ constructor
+    # support.  Future versions do this automatically, but an explicit c++rt0.o
+    # does not break anything, and helps significantly (at the cost of a little
+    # extra space).
+    freebsd2.2*)
+      archive_cmds='$LD -Bshareable -o $lib $libobjs $deplibs $linker_flags /usr/lib/c++rt0.o'
+      hardcode_libdir_flag_spec='-R$libdir'
+      hardcode_direct=yes
+      hardcode_shlibpath_var=no
+      ;;
+
+    # Unfortunately, older versions of FreeBSD 2 do not have this feature.
+    freebsd2.*)
+      archive_cmds='$LD -Bshareable -o $lib $libobjs $deplibs $linker_flags'
+      hardcode_direct=yes
+      hardcode_minus_L=yes
+      hardcode_shlibpath_var=no
+      ;;
+
+    # FreeBSD 3 and greater uses gcc -shared to do shared libraries.
+    freebsd* | dragonfly*)
+      archive_cmds='$CC -shared $pic_flag -o $lib $libobjs $deplibs $compiler_flags'
+      hardcode_libdir_flag_spec='-R$libdir'
+      hardcode_direct=yes
+      hardcode_shlibpath_var=no
+      ;;
+
+    hpux9*)
+      if test yes = "$GCC"; then
+	archive_cmds='$RM $output_objdir/$soname~$CC -shared $pic_flag $wl+b $wl$install_libdir -o $output_objdir/$soname $libobjs $deplibs $compiler_flags~test "x$output_objdir/$soname" = "x$lib" || mv $output_objdir/$soname $lib'
+      else
+	archive_cmds='$RM $output_objdir/$soname~$LD -b +b $install_libdir -o $output_objdir/$soname $libobjs $deplibs $linker_flags~test "x$output_objdir/$soname" = "x$lib" || mv $output_objdir/$soname $lib'
+      fi
+      hardcode_libdir_flag_spec='$wl+b $wl$libdir'
+      hardcode_libdir_separator=:
+      hardcode_direct=yes
+
+      # hardcode_minus_L: Not really in the search PATH,
+      # but as the default location of the library.
+      hardcode_minus_L=yes
+      export_dynamic_flag_spec='$wl-E'
+      ;;
+
+    hpux10*)
+      if test yes,no = "$GCC,$with_gnu_ld"; then
+	archive_cmds='$CC -shared $pic_flag $wl+h $wl$soname $wl+b $wl$install_libdir -o $lib $libobjs $deplibs $compiler_flags'
+      else
+	archive_cmds='$LD -b +h $soname +b $install_libdir -o $lib $libobjs $deplibs $linker_flags'
+      fi
+      if test no = "$with_gnu_ld"; then
+	hardcode_libdir_flag_spec='$wl+b $wl$libdir'
+	hardcode_libdir_separator=:
+	hardcode_direct=yes
+	hardcode_direct_absolute=yes
+	export_dynamic_flag_spec='$wl-E'
+	# hardcode_minus_L: Not really in the search PATH,
+	# but as the default location of the library.
+	hardcode_minus_L=yes
+      fi
+      ;;
+
+    hpux11*)
+      if test yes,no = "$GCC,$with_gnu_ld"; then
+	case $host_cpu in
+	hppa*64*)
+	  archive_cmds='$CC -shared $wl+h $wl$soname -o $lib $libobjs $deplibs $compiler_flags'
+	  ;;
+	ia64*)
+	  archive_cmds='$CC -shared $pic_flag $wl+h $wl$soname $wl+nodefaultrpath -o $lib $libobjs $deplibs $compiler_flags'
+	  ;;
+	*)
+	  archive_cmds='$CC -shared $pic_flag $wl+h $wl$soname $wl+b $wl$install_libdir -o $lib $libobjs $deplibs $compiler_flags'
+	  ;;
+	esac
+      else
+	case $host_cpu in
+	hppa*64*)
+	  archive_cmds='$CC -b $wl+h $wl$soname -o $lib $libobjs $deplibs $compiler_flags'
+	  ;;
+	ia64*)
+	  archive_cmds='$CC -b $wl+h $wl$soname $wl+nodefaultrpath -o $lib $libobjs $deplibs $compiler_flags'
+	  ;;
+	*)
+
+	  # Older versions of the 11.00 compiler do not understand -b yet
+	  # (HP92453-01 A.11.01.20 doesn't, HP92453-01 B.11.X.35175-35176.GP does)
+	  { $as_echo "$as_me:${as_lineno-$LINENO}: checking if $CC understands -b" >&5
+$as_echo_n "checking if $CC understands -b... " >&6; }
+if ${lt_cv_prog_compiler__b+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  lt_cv_prog_compiler__b=no
+   save_LDFLAGS=$LDFLAGS
+   LDFLAGS="$LDFLAGS -b"
+   echo "$lt_simple_link_test_code" > conftest.$ac_ext
+   if (eval $ac_link 2>conftest.err) && test -s conftest$ac_exeext; then
+     # The linker can only warn and ignore the option if not recognized
+     # So say no if there are warnings
+     if test -s conftest.err; then
+       # Append any errors to the config.log.
+       cat conftest.err 1>&5
+       $ECHO "$_lt_linker_boilerplate" | $SED '/^$/d' > conftest.exp
+       $SED '/^$/d; /^ *+/d' conftest.err >conftest.er2
+       if diff conftest.exp conftest.er2 >/dev/null; then
+         lt_cv_prog_compiler__b=yes
+       fi
+     else
+       lt_cv_prog_compiler__b=yes
+     fi
+   fi
+   $RM -r conftest*
+   LDFLAGS=$save_LDFLAGS
+
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $lt_cv_prog_compiler__b" >&5
+$as_echo "$lt_cv_prog_compiler__b" >&6; }
+
+if test yes = "$lt_cv_prog_compiler__b"; then
+    archive_cmds='$CC -b $wl+h $wl$soname $wl+b $wl$install_libdir -o $lib $libobjs $deplibs $compiler_flags'
+else
+    archive_cmds='$LD -b +h $soname +b $install_libdir -o $lib $libobjs $deplibs $linker_flags'
+fi
+
+	  ;;
+	esac
+      fi
+      if test no = "$with_gnu_ld"; then
+	hardcode_libdir_flag_spec='$wl+b $wl$libdir'
+	hardcode_libdir_separator=:
+
+	case $host_cpu in
+	hppa*64*|ia64*)
+	  hardcode_direct=no
+	  hardcode_shlibpath_var=no
+	  ;;
+	*)
+	  hardcode_direct=yes
+	  hardcode_direct_absolute=yes
+	  export_dynamic_flag_spec='$wl-E'
+
+	  # hardcode_minus_L: Not really in the search PATH,
+	  # but as the default location of the library.
+	  hardcode_minus_L=yes
+	  ;;
+	esac
+      fi
+      ;;
+
+    irix5* | irix6* | nonstopux*)
+      if test yes = "$GCC"; then
+	archive_cmds='$CC -shared $pic_flag $libobjs $deplibs $compiler_flags $wl-soname $wl$soname `test -n "$verstring" && func_echo_all "$wl-set_version $wl$verstring"` $wl-update_registry $wl$output_objdir/so_locations -o $lib'
+	# Try to use the -exported_symbol ld option, if it does not
+	# work, assume that -exports_file does not work either and
+	# implicitly export all symbols.
+	# This should be the same for all languages, so no per-tag cache variable.
+	{ $as_echo "$as_me:${as_lineno-$LINENO}: checking whether the $host_os linker accepts -exported_symbol" >&5
+$as_echo_n "checking whether the $host_os linker accepts -exported_symbol... " >&6; }
+if ${lt_cv_irix_exported_symbol+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  save_LDFLAGS=$LDFLAGS
+	   LDFLAGS="$LDFLAGS -shared $wl-exported_symbol ${wl}foo $wl-update_registry $wl/dev/null"
+	   cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+int foo (void) { return 0; }
+_ACEOF
+if ac_fn_c_try_link "$LINENO"; then :
+  lt_cv_irix_exported_symbol=yes
+else
+  lt_cv_irix_exported_symbol=no
+fi
+rm -f core conftest.err conftest.$ac_objext \
+    conftest$ac_exeext conftest.$ac_ext
+           LDFLAGS=$save_LDFLAGS
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $lt_cv_irix_exported_symbol" >&5
+$as_echo "$lt_cv_irix_exported_symbol" >&6; }
+	if test yes = "$lt_cv_irix_exported_symbol"; then
+          archive_expsym_cmds='$CC -shared $pic_flag $libobjs $deplibs $compiler_flags $wl-soname $wl$soname `test -n "$verstring" && func_echo_all "$wl-set_version $wl$verstring"` $wl-update_registry $wl$output_objdir/so_locations $wl-exports_file $wl$export_symbols -o $lib'
+	fi
+      else
+	archive_cmds='$CC -shared $libobjs $deplibs $compiler_flags -soname $soname `test -n "$verstring" && func_echo_all "-set_version $verstring"` -update_registry $output_objdir/so_locations -o $lib'
+	archive_expsym_cmds='$CC -shared $libobjs $deplibs $compiler_flags -soname $soname `test -n "$verstring" && func_echo_all "-set_version $verstring"` -update_registry $output_objdir/so_locations -exports_file $export_symbols -o $lib'
+      fi
+      archive_cmds_need_lc='no'
+      hardcode_libdir_flag_spec='$wl-rpath $wl$libdir'
+      hardcode_libdir_separator=:
+      inherit_rpath=yes
+      link_all_deplibs=yes
+      ;;
+
+    linux*)
+      case $cc_basename in
+      tcc*)
+	# Fabrice Bellard et al's Tiny C Compiler
+	ld_shlibs=yes
+	archive_cmds='$CC -shared $pic_flag -o $lib $libobjs $deplibs $compiler_flags'
+	;;
+      esac
+      ;;
+
+    netbsd*)
+      if echo __ELF__ | $CC -E - | $GREP __ELF__ >/dev/null; then
+	archive_cmds='$LD -Bshareable -o $lib $libobjs $deplibs $linker_flags'  # a.out
+      else
+	archive_cmds='$LD -shared -o $lib $libobjs $deplibs $linker_flags'      # ELF
+      fi
+      hardcode_libdir_flag_spec='-R$libdir'
+      hardcode_direct=yes
+      hardcode_shlibpath_var=no
+      ;;
+
+    newsos6)
+      archive_cmds='$LD -G -h $soname -o $lib $libobjs $deplibs $linker_flags'
+      hardcode_direct=yes
+      hardcode_libdir_flag_spec='$wl-rpath $wl$libdir'
+      hardcode_libdir_separator=:
+      hardcode_shlibpath_var=no
+      ;;
+
+    *nto* | *qnx*)
+      ;;
+
+    openbsd* | bitrig*)
+      if test -f /usr/libexec/ld.so; then
+	hardcode_direct=yes
+	hardcode_shlibpath_var=no
+	hardcode_direct_absolute=yes
+	if test -z "`echo __ELF__ | $CC -E - | $GREP __ELF__`"; then
+	  archive_cmds='$CC -shared $pic_flag -o $lib $libobjs $deplibs $compiler_flags'
+	  archive_expsym_cmds='$CC -shared $pic_flag -o $lib $libobjs $deplibs $compiler_flags $wl-retain-symbols-file,$export_symbols'
+	  hardcode_libdir_flag_spec='$wl-rpath,$libdir'
+	  export_dynamic_flag_spec='$wl-E'
+	else
+	  archive_cmds='$CC -shared $pic_flag -o $lib $libobjs $deplibs $compiler_flags'
+	  hardcode_libdir_flag_spec='$wl-rpath,$libdir'
+	fi
+      else
+	ld_shlibs=no
+      fi
+      ;;
+
+    os2*)
+      hardcode_libdir_flag_spec='-L$libdir'
+      hardcode_minus_L=yes
+      allow_undefined_flag=unsupported
+      shrext_cmds=.dll
+      archive_cmds='$ECHO "LIBRARY ${soname%$shared_ext} INITINSTANCE TERMINSTANCE" > $output_objdir/$libname.def~
+	$ECHO "DESCRIPTION \"$libname\"" >> $output_objdir/$libname.def~
+	$ECHO "DATA MULTIPLE NONSHARED" >> $output_objdir/$libname.def~
+	$ECHO EXPORTS >> $output_objdir/$libname.def~
+	emxexp $libobjs | $SED /"_DLL_InitTerm"/d >> $output_objdir/$libname.def~
+	$CC -Zdll -Zcrtdll -o $output_objdir/$soname $libobjs $deplibs $compiler_flags $output_objdir/$libname.def~
+	emximp -o $lib $output_objdir/$libname.def'
+      archive_expsym_cmds='$ECHO "LIBRARY ${soname%$shared_ext} INITINSTANCE TERMINSTANCE" > $output_objdir/$libname.def~
+	$ECHO "DESCRIPTION \"$libname\"" >> $output_objdir/$libname.def~
+	$ECHO "DATA MULTIPLE NONSHARED" >> $output_objdir/$libname.def~
+	$ECHO EXPORTS >> $output_objdir/$libname.def~
+	prefix_cmds="$SED"~
+	if test EXPORTS = "`$SED 1q $export_symbols`"; then
+	  prefix_cmds="$prefix_cmds -e 1d";
+	fi~
+	prefix_cmds="$prefix_cmds -e \"s/^\(.*\)$/_\1/g\""~
+	cat $export_symbols | $prefix_cmds >> $output_objdir/$libname.def~
+	$CC -Zdll -Zcrtdll -o $output_objdir/$soname $libobjs $deplibs $compiler_flags $output_objdir/$libname.def~
+	emximp -o $lib $output_objdir/$libname.def'
+      old_archive_From_new_cmds='emximp -o $output_objdir/${libname}_dll.a $output_objdir/$libname.def'
+      enable_shared_with_static_runtimes=yes
+      ;;
+
+    osf3*)
+      if test yes = "$GCC"; then
+	allow_undefined_flag=' $wl-expect_unresolved $wl\*'
+	archive_cmds='$CC -shared$allow_undefined_flag $libobjs $deplibs $compiler_flags $wl-soname $wl$soname `test -n "$verstring" && func_echo_all "$wl-set_version $wl$verstring"` $wl-update_registry $wl$output_objdir/so_locations -o $lib'
+      else
+	allow_undefined_flag=' -expect_unresolved \*'
+	archive_cmds='$CC -shared$allow_undefined_flag $libobjs $deplibs $compiler_flags -soname $soname `test -n "$verstring" && func_echo_all "-set_version $verstring"` -update_registry $output_objdir/so_locations -o $lib'
+      fi
+      archive_cmds_need_lc='no'
+      hardcode_libdir_flag_spec='$wl-rpath $wl$libdir'
+      hardcode_libdir_separator=:
+      ;;
+
+    osf4* | osf5*)	# as osf3* with the addition of -msym flag
+      if test yes = "$GCC"; then
+	allow_undefined_flag=' $wl-expect_unresolved $wl\*'
+	archive_cmds='$CC -shared$allow_undefined_flag $pic_flag $libobjs $deplibs $compiler_flags $wl-msym $wl-soname $wl$soname `test -n "$verstring" && func_echo_all "$wl-set_version $wl$verstring"` $wl-update_registry $wl$output_objdir/so_locations -o $lib'
+	hardcode_libdir_flag_spec='$wl-rpath $wl$libdir'
+      else
+	allow_undefined_flag=' -expect_unresolved \*'
+	archive_cmds='$CC -shared$allow_undefined_flag $libobjs $deplibs $compiler_flags -msym -soname $soname `test -n "$verstring" && func_echo_all "-set_version $verstring"` -update_registry $output_objdir/so_locations -o $lib'
+	archive_expsym_cmds='for i in `cat $export_symbols`; do printf "%s %s\\n" -exported_symbol "\$i" >> $lib.exp; done; printf "%s\\n" "-hidden">> $lib.exp~
+          $CC -shared$allow_undefined_flag $wl-input $wl$lib.exp $compiler_flags $libobjs $deplibs -soname $soname `test -n "$verstring" && $ECHO "-set_version $verstring"` -update_registry $output_objdir/so_locations -o $lib~$RM $lib.exp'
+
+	# Both c and cxx compiler support -rpath directly
+	hardcode_libdir_flag_spec='-rpath $libdir'
+      fi
+      archive_cmds_need_lc='no'
+      hardcode_libdir_separator=:
+      ;;
+
+    solaris*)
+      no_undefined_flag=' -z defs'
+      if test yes = "$GCC"; then
+	wlarc='$wl'
+	archive_cmds='$CC -shared $pic_flag $wl-z ${wl}text $wl-h $wl$soname -o $lib $libobjs $deplibs $compiler_flags'
+	archive_expsym_cmds='echo "{ global:" > $lib.exp~cat $export_symbols | $SED -e "s/\(.*\)/\1;/" >> $lib.exp~echo "local: *; };" >> $lib.exp~
+          $CC -shared $pic_flag $wl-z ${wl}text $wl-M $wl$lib.exp $wl-h $wl$soname -o $lib $libobjs $deplibs $compiler_flags~$RM $lib.exp'
+      else
+	case `$CC -V 2>&1` in
+	*"Compilers 5.0"*)
+	  wlarc=''
+	  archive_cmds='$LD -G$allow_undefined_flag -h $soname -o $lib $libobjs $deplibs $linker_flags'
+	  archive_expsym_cmds='echo "{ global:" > $lib.exp~cat $export_symbols | $SED -e "s/\(.*\)/\1;/" >> $lib.exp~echo "local: *; };" >> $lib.exp~
+            $LD -G$allow_undefined_flag -M $lib.exp -h $soname -o $lib $libobjs $deplibs $linker_flags~$RM $lib.exp'
+	  ;;
+	*)
+	  wlarc='$wl'
+	  archive_cmds='$CC -G$allow_undefined_flag -h $soname -o $lib $libobjs $deplibs $compiler_flags'
+	  archive_expsym_cmds='echo "{ global:" > $lib.exp~cat $export_symbols | $SED -e "s/\(.*\)/\1;/" >> $lib.exp~echo "local: *; };" >> $lib.exp~
+            $CC -G$allow_undefined_flag -M $lib.exp -h $soname -o $lib $libobjs $deplibs $compiler_flags~$RM $lib.exp'
+	  ;;
+	esac
+      fi
+      hardcode_libdir_flag_spec='-R$libdir'
+      hardcode_shlibpath_var=no
+      case $host_os in
+      solaris2.[0-5] | solaris2.[0-5].*) ;;
+      *)
+	# The compiler driver will combine and reorder linker options,
+	# but understands '-z linker_flag'.  GCC discards it without '$wl',
+	# but is careful enough not to reorder.
+	# Supported since Solaris 2.6 (maybe 2.5.1?)
+	if test yes = "$GCC"; then
+	  whole_archive_flag_spec='$wl-z ${wl}allextract$convenience $wl-z ${wl}defaultextract'
+	else
+	  whole_archive_flag_spec='-z allextract$convenience -z defaultextract'
+	fi
+	;;
+      esac
+      link_all_deplibs=yes
+      ;;
+
+    sunos4*)
+      if test sequent = "$host_vendor"; then
+	# Use $CC to link under sequent, because it throws in some extra .o
+	# files that make .init and .fini sections work.
+	archive_cmds='$CC -G $wl-h $soname -o $lib $libobjs $deplibs $compiler_flags'
+      else
+	archive_cmds='$LD -assert pure-text -Bstatic -o $lib $libobjs $deplibs $linker_flags'
+      fi
+      hardcode_libdir_flag_spec='-L$libdir'
+      hardcode_direct=yes
+      hardcode_minus_L=yes
+      hardcode_shlibpath_var=no
+      ;;
+
+    sysv4)
+      case $host_vendor in
+	sni)
+	  archive_cmds='$LD -G -h $soname -o $lib $libobjs $deplibs $linker_flags'
+	  hardcode_direct=yes # is this really true???
+	;;
+	siemens)
+	  ## LD is ld it makes a PLAMLIB
+	  ## CC just makes a GrossModule.
+	  archive_cmds='$LD -G -o $lib $libobjs $deplibs $linker_flags'
+	  reload_cmds='$CC -r -o $output$reload_objs'
+	  hardcode_direct=no
+        ;;
+	motorola)
+	  archive_cmds='$LD -G -h $soname -o $lib $libobjs $deplibs $linker_flags'
+	  hardcode_direct=no #Motorola manual says yes, but my tests say they lie
+	;;
+      esac
+      runpath_var='LD_RUN_PATH'
+      hardcode_shlibpath_var=no
+      ;;
+
+    sysv4.3*)
+      archive_cmds='$LD -G -h $soname -o $lib $libobjs $deplibs $linker_flags'
+      hardcode_shlibpath_var=no
+      export_dynamic_flag_spec='-Bexport'
+      ;;
+
+    sysv4*MP*)
+      if test -d /usr/nec; then
+	archive_cmds='$LD -G -h $soname -o $lib $libobjs $deplibs $linker_flags'
+	hardcode_shlibpath_var=no
+	runpath_var=LD_RUN_PATH
+	hardcode_runpath_var=yes
+	ld_shlibs=yes
+      fi
+      ;;
+
+    sysv4*uw2* | sysv5OpenUNIX* | sysv5UnixWare7.[01].[10]* | unixware7* | sco3.2v5.0.[024]*)
+      no_undefined_flag='$wl-z,text'
+      archive_cmds_need_lc=no
+      hardcode_shlibpath_var=no
+      runpath_var='LD_RUN_PATH'
+
+      if test yes = "$GCC"; then
+	archive_cmds='$CC -shared $wl-h,$soname -o $lib $libobjs $deplibs $compiler_flags'
+	archive_expsym_cmds='$CC -shared $wl-Bexport:$export_symbols $wl-h,$soname -o $lib $libobjs $deplibs $compiler_flags'
+      else
+	archive_cmds='$CC -G $wl-h,$soname -o $lib $libobjs $deplibs $compiler_flags'
+	archive_expsym_cmds='$CC -G $wl-Bexport:$export_symbols $wl-h,$soname -o $lib $libobjs $deplibs $compiler_flags'
+      fi
+      ;;
+
+    sysv5* | sco3.2v5* | sco5v6*)
+      # Note: We CANNOT use -z defs as we might desire, because we do not
+      # link with -lc, and that would cause any symbols used from libc to
+      # always be unresolved, which means just about no library would
+      # ever link correctly.  If we're not using GNU ld we use -z text
+      # though, which does catch some bad symbols but isn't as heavy-handed
+      # as -z defs.
+      no_undefined_flag='$wl-z,text'
+      allow_undefined_flag='$wl-z,nodefs'
+      archive_cmds_need_lc=no
+      hardcode_shlibpath_var=no
+      hardcode_libdir_flag_spec='$wl-R,$libdir'
+      hardcode_libdir_separator=':'
+      link_all_deplibs=yes
+      export_dynamic_flag_spec='$wl-Bexport'
+      runpath_var='LD_RUN_PATH'
+
+      if test yes = "$GCC"; then
+	archive_cmds='$CC -shared $wl-h,$soname -o $lib $libobjs $deplibs $compiler_flags'
+	archive_expsym_cmds='$CC -shared $wl-Bexport:$export_symbols $wl-h,$soname -o $lib $libobjs $deplibs $compiler_flags'
+      else
+	archive_cmds='$CC -G $wl-h,$soname -o $lib $libobjs $deplibs $compiler_flags'
+	archive_expsym_cmds='$CC -G $wl-Bexport:$export_symbols $wl-h,$soname -o $lib $libobjs $deplibs $compiler_flags'
+      fi
+      ;;
+
+    uts4*)
+      archive_cmds='$LD -G -h $soname -o $lib $libobjs $deplibs $linker_flags'
+      hardcode_libdir_flag_spec='-L$libdir'
+      hardcode_shlibpath_var=no
+      ;;
+
+    *)
+      ld_shlibs=no
+      ;;
+    esac
+
+    if test sni = "$host_vendor"; then
+      case $host in
+      sysv4 | sysv4.2uw2* | sysv4.3* | sysv5*)
+	export_dynamic_flag_spec='$wl-Blargedynsym'
+	;;
+      esac
+    fi
+  fi
+
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ld_shlibs" >&5
+$as_echo "$ld_shlibs" >&6; }
+test no = "$ld_shlibs" && can_build_shared=no
+
+with_gnu_ld=$with_gnu_ld
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+#
+# Do we need to explicitly link libc?
+#
+case "x$archive_cmds_need_lc" in
+x|xyes)
+  # Assume -lc should be added
+  archive_cmds_need_lc=yes
+
+  if test yes,yes = "$GCC,$enable_shared"; then
+    case $archive_cmds in
+    *'~'*)
+      # FIXME: we may have to deal with multi-command sequences.
+      ;;
+    '$CC '*)
+      # Test whether the compiler implicitly links with -lc since on some
+      # systems, -lgcc has to come before -lc. If gcc already passes -lc
+      # to ld, don't add -lc before -lgcc.
+      { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether -lc should be explicitly linked in" >&5
+$as_echo_n "checking whether -lc should be explicitly linked in... " >&6; }
+if ${lt_cv_archive_cmds_need_lc+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  $RM conftest*
+	echo "$lt_simple_compile_test_code" > conftest.$ac_ext
+
+	if { { eval echo "\"\$as_me\":${as_lineno-$LINENO}: \"$ac_compile\""; } >&5
+  (eval $ac_compile) 2>&5
+  ac_status=$?
+  $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+  test $ac_status = 0; } 2>conftest.err; then
+	  soname=conftest
+	  lib=conftest
+	  libobjs=conftest.$ac_objext
+	  deplibs=
+	  wl=$lt_prog_compiler_wl
+	  pic_flag=$lt_prog_compiler_pic
+	  compiler_flags=-v
+	  linker_flags=-v
+	  verstring=
+	  output_objdir=.
+	  libname=conftest
+	  lt_save_allow_undefined_flag=$allow_undefined_flag
+	  allow_undefined_flag=
+	  if { { eval echo "\"\$as_me\":${as_lineno-$LINENO}: \"$archive_cmds 2\>\&1 \| $GREP \" -lc \" \>/dev/null 2\>\&1\""; } >&5
+  (eval $archive_cmds 2\>\&1 \| $GREP \" -lc \" \>/dev/null 2\>\&1) 2>&5
+  ac_status=$?
+  $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+  test $ac_status = 0; }
+	  then
+	    lt_cv_archive_cmds_need_lc=no
+	  else
+	    lt_cv_archive_cmds_need_lc=yes
+	  fi
+	  allow_undefined_flag=$lt_save_allow_undefined_flag
+	else
+	  cat conftest.err 1>&5
+	fi
+	$RM conftest*
+
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $lt_cv_archive_cmds_need_lc" >&5
+$as_echo "$lt_cv_archive_cmds_need_lc" >&6; }
+      archive_cmds_need_lc=$lt_cv_archive_cmds_need_lc
+      ;;
+    esac
+  fi
+  ;;
+esac
+
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+
+
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking dynamic linker characteristics" >&5
+$as_echo_n "checking dynamic linker characteristics... " >&6; }
+
+if test yes = "$GCC"; then
+  case $host_os in
+    darwin*) lt_awk_arg='/^libraries:/,/LR/' ;;
+    *) lt_awk_arg='/^libraries:/' ;;
+  esac
+  case $host_os in
+    mingw* | cegcc*) lt_sed_strip_eq='s|=\([A-Za-z]:\)|\1|g' ;;
+    *) lt_sed_strip_eq='s|=/|/|g' ;;
+  esac
+  lt_search_path_spec=`$CC -print-search-dirs | awk $lt_awk_arg | $SED -e "s/^libraries://" -e $lt_sed_strip_eq`
+  case $lt_search_path_spec in
+  *\;*)
+    # if the path contains ";" then we assume it to be the separator
+    # otherwise default to the standard path separator (i.e. ":") - it is
+    # assumed that no part of a normal pathname contains ";" but that should
+    # okay in the real world where ";" in dirpaths is itself problematic.
+    lt_search_path_spec=`$ECHO "$lt_search_path_spec" | $SED 's/;/ /g'`
+    ;;
+  *)
+    lt_search_path_spec=`$ECHO "$lt_search_path_spec" | $SED "s/$PATH_SEPARATOR/ /g"`
+    ;;
+  esac
+  # Ok, now we have the path, separated by spaces, we can step through it
+  # and add multilib dir if necessary...
+  lt_tmp_lt_search_path_spec=
+  lt_multi_os_dir=/`$CC $CPPFLAGS $CFLAGS $LDFLAGS -print-multi-os-directory 2>/dev/null`
+  # ...but if some path component already ends with the multilib dir we assume
+  # that all is fine and trust -print-search-dirs as is (GCC 4.2? or newer).
+  case "$lt_multi_os_dir; $lt_search_path_spec " in
+  "/; "* | "/.; "* | "/./; "* | *"$lt_multi_os_dir "* | *"$lt_multi_os_dir/ "*)
+    lt_multi_os_dir=
+    ;;
+  esac
+  for lt_sys_path in $lt_search_path_spec; do
+    if test -d "$lt_sys_path$lt_multi_os_dir"; then
+      lt_tmp_lt_search_path_spec="$lt_tmp_lt_search_path_spec $lt_sys_path$lt_multi_os_dir"
+    elif test -n "$lt_multi_os_dir"; then
+      test -d "$lt_sys_path" && \
+	lt_tmp_lt_search_path_spec="$lt_tmp_lt_search_path_spec $lt_sys_path"
+    fi
+  done
+  lt_search_path_spec=`$ECHO "$lt_tmp_lt_search_path_spec" | awk '
+BEGIN {RS = " "; FS = "/|\n";} {
+  lt_foo = "";
+  lt_count = 0;
+  for (lt_i = NF; lt_i > 0; lt_i--) {
+    if ($lt_i != "" && $lt_i != ".") {
+      if ($lt_i == "..") {
+        lt_count++;
+      } else {
+        if (lt_count == 0) {
+          lt_foo = "/" $lt_i lt_foo;
+        } else {
+          lt_count--;
+        }
+      }
+    }
+  }
+  if (lt_foo != "") { lt_freq[lt_foo]++; }
+  if (lt_freq[lt_foo] == 1) { print lt_foo; }
+}'`
+  # AWK program above erroneously prepends '/' to C:/dos/paths
+  # for these hosts.
+  case $host_os in
+    mingw* | cegcc*) lt_search_path_spec=`$ECHO "$lt_search_path_spec" |\
+      $SED 's|/\([A-Za-z]:\)|\1|g'` ;;
+  esac
+  sys_lib_search_path_spec=`$ECHO "$lt_search_path_spec" | $lt_NL2SP`
+else
+  sys_lib_search_path_spec="/lib /usr/lib /usr/local/lib"
+fi
+library_names_spec=
+libname_spec='lib$name'
+soname_spec=
+shrext_cmds=.so
+postinstall_cmds=
+postuninstall_cmds=
+finish_cmds=
+finish_eval=
+shlibpath_var=
+shlibpath_overrides_runpath=unknown
+version_type=none
+dynamic_linker="$host_os ld.so"
+sys_lib_dlsearch_path_spec="/lib /usr/lib"
+need_lib_prefix=unknown
+hardcode_into_libs=no
+
+# when you set need_version to no, make sure it does not cause -set_version
+# flags to be left without arguments
+need_version=unknown
+
+
+
+case $host_os in
+aix3*)
+  version_type=linux # correct to gnu/linux during the next big refactor
+  library_names_spec='$libname$release$shared_ext$versuffix $libname.a'
+  shlibpath_var=LIBPATH
+
+  # AIX 3 has no versioning support, so we append a major version to the name.
+  soname_spec='$libname$release$shared_ext$major'
+  ;;
+
+aix[4-9]*)
+  version_type=linux # correct to gnu/linux during the next big refactor
+  need_lib_prefix=no
+  need_version=no
+  hardcode_into_libs=yes
+  if test ia64 = "$host_cpu"; then
+    # AIX 5 supports IA64
+    library_names_spec='$libname$release$shared_ext$major $libname$release$shared_ext$versuffix $libname$shared_ext'
+    shlibpath_var=LD_LIBRARY_PATH
+  else
+    # With GCC up to 2.95.x, collect2 would create an import file
+    # for dependence libraries.  The import file would start with
+    # the line '#! .'.  This would cause the generated library to
+    # depend on '.', always an invalid library.  This was fixed in
+    # development snapshots of GCC prior to 3.0.
+    case $host_os in
+      aix4 | aix4.[01] | aix4.[01].*)
+      if { echo '#if __GNUC__ > 2 || (__GNUC__ == 2 && __GNUC_MINOR__ >= 97)'
+	   echo ' yes '
+	   echo '#endif'; } | $CC -E - | $GREP yes > /dev/null; then
+	:
+      else
+	can_build_shared=no
+      fi
+      ;;
+    esac
+    # Using Import Files as archive members, it is possible to support
+    # filename-based versioning of shared library archives on AIX. While
+    # this would work for both with and without runtime linking, it will
+    # prevent static linking of such archives. So we do filename-based
+    # shared library versioning with .so extension only, which is used
+    # when both runtime linking and shared linking is enabled.
+    # Unfortunately, runtime linking may impact performance, so we do
+    # not want this to be the default eventually. Also, we use the
+    # versioned .so libs for executables only if there is the -brtl
+    # linker flag in LDFLAGS as well, or --with-aix-soname=svr4 only.
+    # To allow for filename-based versioning support, we need to create
+    # libNAME.so.V as an archive file, containing:
+    # *) an Import File, referring to the versioned filename of the
+    #    archive as well as the shared archive member, telling the
+    #    bitwidth (32 or 64) of that shared object, and providing the
+    #    list of exported symbols of that shared object, eventually
+    #    decorated with the 'weak' keyword
+    # *) the shared object with the F_LOADONLY flag set, to really avoid
+    #    it being seen by the linker.
+    # At run time we better use the real file rather than another symlink,
+    # but for link time we create the symlink libNAME.so -> libNAME.so.V
+
+    case $with_aix_soname,$aix_use_runtimelinking in
+    # AIX (on Power*) has no versioning support, so currently we cannot hardcode correct
+    # soname into executable. Probably we can add versioning support to
+    # collect2, so additional links can be useful in future.
+    aix,yes) # traditional libtool
+      dynamic_linker='AIX unversionable lib.so'
+      # If using run time linking (on AIX 4.2 or later) use lib<name>.so
+      # instead of lib<name>.a to let people know that these are not
+      # typical AIX shared libraries.
+      library_names_spec='$libname$release$shared_ext$versuffix $libname$release$shared_ext$major $libname$shared_ext'
+      ;;
+    aix,no) # traditional AIX only
+      dynamic_linker='AIX lib.a(lib.so.V)'
+      # We preserve .a as extension for shared libraries through AIX4.2
+      # and later when we are not doing run time linking.
+      library_names_spec='$libname$release.a $libname.a'
+      soname_spec='$libname$release$shared_ext$major'
+      ;;
+    svr4,*) # full svr4 only
+      dynamic_linker="AIX lib.so.V($shared_archive_member_spec.o)"
+      library_names_spec='$libname$release$shared_ext$major $libname$shared_ext'
+      # We do not specify a path in Import Files, so LIBPATH fires.
+      shlibpath_overrides_runpath=yes
+      ;;
+    *,yes) # both, prefer svr4
+      dynamic_linker="AIX lib.so.V($shared_archive_member_spec.o), lib.a(lib.so.V)"
+      library_names_spec='$libname$release$shared_ext$major $libname$shared_ext'
+      # unpreferred sharedlib libNAME.a needs extra handling
+      postinstall_cmds='test -n "$linkname" || linkname="$realname"~func_stripname "" ".so" "$linkname"~$install_shared_prog "$dir/$func_stripname_result.$libext" "$destdir/$func_stripname_result.$libext"~test -z "$tstripme" || test -z "$striplib" || $striplib "$destdir/$func_stripname_result.$libext"'
+      postuninstall_cmds='for n in $library_names $old_library; do :; done~func_stripname "" ".so" "$n"~test "$func_stripname_result" = "$n" || func_append rmfiles " $odir/$func_stripname_result.$libext"'
+      # We do not specify a path in Import Files, so LIBPATH fires.
+      shlibpath_overrides_runpath=yes
+      ;;
+    *,no) # both, prefer aix
+      dynamic_linker="AIX lib.a(lib.so.V), lib.so.V($shared_archive_member_spec.o)"
+      library_names_spec='$libname$release.a $libname.a'
+      soname_spec='$libname$release$shared_ext$major'
+      # unpreferred sharedlib libNAME.so.V and symlink libNAME.so need extra handling
+      postinstall_cmds='test -z "$dlname" || $install_shared_prog $dir/$dlname $destdir/$dlname~test -z "$tstripme" || test -z "$striplib" || $striplib $destdir/$dlname~test -n "$linkname" || linkname=$realname~func_stripname "" ".a" "$linkname"~(cd "$destdir" && $LN_S -f $dlname $func_stripname_result.so)'
+      postuninstall_cmds='test -z "$dlname" || func_append rmfiles " $odir/$dlname"~for n in $old_library $library_names; do :; done~func_stripname "" ".a" "$n"~func_append rmfiles " $odir/$func_stripname_result.so"'
+      ;;
+    esac
+    shlibpath_var=LIBPATH
+  fi
+  ;;
+
+amigaos*)
+  case $host_cpu in
+  powerpc)
+    # Since July 2007 AmigaOS4 officially supports .so libraries.
+    # When compiling the executable, add -use-dynld -Lsobjs: to the compileline.
+    library_names_spec='$libname$release$shared_ext$versuffix $libname$release$shared_ext$major $libname$shared_ext'
+    ;;
+  m68k)
+    library_names_spec='$libname.ixlibrary $libname.a'
+    # Create ${libname}_ixlibrary.a entries in /sys/libs.
+    finish_eval='for lib in `ls $libdir/*.ixlibrary 2>/dev/null`; do libname=`func_echo_all "$lib" | $SED '\''s%^.*/\([^/]*\)\.ixlibrary$%\1%'\''`; $RM /sys/libs/${libname}_ixlibrary.a; $show "cd /sys/libs && $LN_S $lib ${libname}_ixlibrary.a"; cd /sys/libs && $LN_S $lib ${libname}_ixlibrary.a || exit 1; done'
+    ;;
+  esac
+  ;;
+
+beos*)
+  library_names_spec='$libname$shared_ext'
+  dynamic_linker="$host_os ld.so"
+  shlibpath_var=LIBRARY_PATH
+  ;;
+
+bsdi[45]*)
+  version_type=linux # correct to gnu/linux during the next big refactor
+  need_version=no
+  library_names_spec='$libname$release$shared_ext$versuffix $libname$release$shared_ext$major $libname$shared_ext'
+  soname_spec='$libname$release$shared_ext$major'
+  finish_cmds='PATH="\$PATH:/sbin" ldconfig $libdir'
+  shlibpath_var=LD_LIBRARY_PATH
+  sys_lib_search_path_spec="/shlib /usr/lib /usr/X11/lib /usr/contrib/lib /lib /usr/local/lib"
+  sys_lib_dlsearch_path_spec="/shlib /usr/lib /usr/local/lib"
+  # the default ld.so.conf also contains /usr/contrib/lib and
+  # /usr/X11R6/lib (/usr/X11 is a link to /usr/X11R6), but let us allow
+  # libtool to hard-code these into programs
+  ;;
+
+cygwin* | mingw* | pw32* | cegcc*)
+  version_type=windows
+  shrext_cmds=.dll
+  need_version=no
+  need_lib_prefix=no
+
+  case $GCC,$cc_basename in
+  yes,*)
+    # gcc
+    library_names_spec='$libname.dll.a'
+    # DLL is installed to $(libdir)/../bin by postinstall_cmds
+    postinstall_cmds='base_file=`basename \$file`~
+      dlpath=`$SHELL 2>&1 -c '\''. $dir/'\''\$base_file'\''i; echo \$dlname'\''`~
+      dldir=$destdir/`dirname \$dlpath`~
+      test -d \$dldir || mkdir -p \$dldir~
+      $install_prog $dir/$dlname \$dldir/$dlname~
+      chmod a+x \$dldir/$dlname~
+      if test -n '\''$stripme'\'' && test -n '\''$striplib'\''; then
+        eval '\''$striplib \$dldir/$dlname'\'' || exit \$?;
+      fi'
+    postuninstall_cmds='dldll=`$SHELL 2>&1 -c '\''. $file; echo \$dlname'\''`~
+      dlpath=$dir/\$dldll~
+       $RM \$dlpath'
+    shlibpath_overrides_runpath=yes
+
+    case $host_os in
+    cygwin*)
+      # Cygwin DLLs use 'cyg' prefix rather than 'lib'
+      soname_spec='`echo $libname | sed -e 's/^lib/cyg/'``echo $release | $SED -e 's/[.]/-/g'`$versuffix$shared_ext'
+
+      sys_lib_search_path_spec="$sys_lib_search_path_spec /usr/lib/w32api"
+      ;;
+    mingw* | cegcc*)
+      # MinGW DLLs use traditional 'lib' prefix
+      soname_spec='$libname`echo $release | $SED -e 's/[.]/-/g'`$versuffix$shared_ext'
+      ;;
+    pw32*)
+      # pw32 DLLs use 'pw' prefix rather than 'lib'
+      library_names_spec='`echo $libname | sed -e 's/^lib/pw/'``echo $release | $SED -e 's/[.]/-/g'`$versuffix$shared_ext'
+      ;;
+    esac
+    dynamic_linker='Win32 ld.exe'
+    ;;
+
+  *,cl*)
+    # Native MSVC
+    libname_spec='$name'
+    soname_spec='$libname`echo $release | $SED -e 's/[.]/-/g'`$versuffix$shared_ext'
+    library_names_spec='$libname.dll.lib'
+
+    case $build_os in
+    mingw*)
+      sys_lib_search_path_spec=
+      lt_save_ifs=$IFS
+      IFS=';'
+      for lt_path in $LIB
+      do
+        IFS=$lt_save_ifs
+        # Let DOS variable expansion print the short 8.3 style file name.
+        lt_path=`cd "$lt_path" 2>/dev/null && cmd //C "for %i in (".") do @echo %~si"`
+        sys_lib_search_path_spec="$sys_lib_search_path_spec $lt_path"
+      done
+      IFS=$lt_save_ifs
+      # Convert to MSYS style.
+      sys_lib_search_path_spec=`$ECHO "$sys_lib_search_path_spec" | sed -e 's|\\\\|/|g' -e 's| \\([a-zA-Z]\\):| /\\1|g' -e 's|^ ||'`
+      ;;
+    cygwin*)
+      # Convert to unix form, then to dos form, then back to unix form
+      # but this time dos style (no spaces!) so that the unix form looks
+      # like /cygdrive/c/PROGRA~1:/cygdr...
+      sys_lib_search_path_spec=`cygpath --path --unix "$LIB"`
+      sys_lib_search_path_spec=`cygpath --path --dos "$sys_lib_search_path_spec" 2>/dev/null`
+      sys_lib_search_path_spec=`cygpath --path --unix "$sys_lib_search_path_spec" | $SED -e "s/$PATH_SEPARATOR/ /g"`
+      ;;
+    *)
+      sys_lib_search_path_spec=$LIB
+      if $ECHO "$sys_lib_search_path_spec" | $GREP ';[c-zC-Z]:/' >/dev/null; then
+        # It is most probably a Windows format PATH.
+        sys_lib_search_path_spec=`$ECHO "$sys_lib_search_path_spec" | $SED -e 's/;/ /g'`
+      else
+        sys_lib_search_path_spec=`$ECHO "$sys_lib_search_path_spec" | $SED -e "s/$PATH_SEPARATOR/ /g"`
+      fi
+      # FIXME: find the short name or the path components, as spaces are
+      # common. (e.g. "Program Files" -> "PROGRA~1")
+      ;;
+    esac
+
+    # DLL is installed to $(libdir)/../bin by postinstall_cmds
+    postinstall_cmds='base_file=`basename \$file`~
+      dlpath=`$SHELL 2>&1 -c '\''. $dir/'\''\$base_file'\''i; echo \$dlname'\''`~
+      dldir=$destdir/`dirname \$dlpath`~
+      test -d \$dldir || mkdir -p \$dldir~
+      $install_prog $dir/$dlname \$dldir/$dlname'
+    postuninstall_cmds='dldll=`$SHELL 2>&1 -c '\''. $file; echo \$dlname'\''`~
+      dlpath=$dir/\$dldll~
+       $RM \$dlpath'
+    shlibpath_overrides_runpath=yes
+    dynamic_linker='Win32 link.exe'
+    ;;
+
+  *)
+    # Assume MSVC wrapper
+    library_names_spec='$libname`echo $release | $SED -e 's/[.]/-/g'`$versuffix$shared_ext $libname.lib'
+    dynamic_linker='Win32 ld.exe'
+    ;;
+  esac
+  # FIXME: first we should search . and the directory the executable is in
+  shlibpath_var=PATH
+  ;;
+
+darwin* | rhapsody*)
+  dynamic_linker="$host_os dyld"
+  version_type=darwin
+  need_lib_prefix=no
+  need_version=no
+  library_names_spec='$libname$release$major$shared_ext $libname$shared_ext'
+  soname_spec='$libname$release$major$shared_ext'
+  shlibpath_overrides_runpath=yes
+  shlibpath_var=DYLD_LIBRARY_PATH
+  shrext_cmds='`test .$module = .yes && echo .so || echo .dylib`'
+
+  sys_lib_search_path_spec="$sys_lib_search_path_spec /usr/local/lib"
+  sys_lib_dlsearch_path_spec='/usr/local/lib /lib /usr/lib'
+  ;;
+
+dgux*)
+  version_type=linux # correct to gnu/linux during the next big refactor
+  need_lib_prefix=no
+  need_version=no
+  library_names_spec='$libname$release$shared_ext$versuffix $libname$release$shared_ext$major $libname$shared_ext'
+  soname_spec='$libname$release$shared_ext$major'
+  shlibpath_var=LD_LIBRARY_PATH
+  ;;
+
+freebsd* | dragonfly*)
+  # DragonFly does not have aout.  When/if they implement a new
+  # versioning mechanism, adjust this.
+  if test -x /usr/bin/objformat; then
+    objformat=`/usr/bin/objformat`
+  else
+    case $host_os in
+    freebsd[23].*) objformat=aout ;;
+    *) objformat=elf ;;
+    esac
+  fi
+  version_type=freebsd-$objformat
+  case $version_type in
+    freebsd-elf*)
+      library_names_spec='$libname$release$shared_ext$versuffix $libname$release$shared_ext$major $libname$shared_ext'
+      soname_spec='$libname$release$shared_ext$major'
+      need_version=no
+      need_lib_prefix=no
+      ;;
+    freebsd-*)
+      library_names_spec='$libname$release$shared_ext$versuffix $libname$shared_ext$versuffix'
+      need_version=yes
+      ;;
+  esac
+  shlibpath_var=LD_LIBRARY_PATH
+  case $host_os in
+  freebsd2.*)
+    shlibpath_overrides_runpath=yes
+    ;;
+  freebsd3.[01]* | freebsdelf3.[01]*)
+    shlibpath_overrides_runpath=yes
+    hardcode_into_libs=yes
+    ;;
+  freebsd3.[2-9]* | freebsdelf3.[2-9]* | \
+  freebsd4.[0-5] | freebsdelf4.[0-5] | freebsd4.1.1 | freebsdelf4.1.1)
+    shlibpath_overrides_runpath=no
+    hardcode_into_libs=yes
+    ;;
+  *) # from 4.6 on, and DragonFly
+    shlibpath_overrides_runpath=yes
+    hardcode_into_libs=yes
+    ;;
+  esac
+  ;;
+
+haiku*)
+  version_type=linux # correct to gnu/linux during the next big refactor
+  need_lib_prefix=no
+  need_version=no
+  dynamic_linker="$host_os runtime_loader"
+  library_names_spec='$libname$release$shared_ext$versuffix $libname$release$shared_ext$major $libname$shared_ext'
+  soname_spec='$libname$release$shared_ext$major'
+  shlibpath_var=LIBRARY_PATH
+  shlibpath_overrides_runpath=no
+  sys_lib_dlsearch_path_spec='/boot/home/config/lib /boot/common/lib /boot/system/lib'
+  hardcode_into_libs=yes
+  ;;
+
+hpux9* | hpux10* | hpux11*)
+  # Give a soname corresponding to the major version so that dld.sl refuses to
+  # link against other versions.
+  version_type=sunos
+  need_lib_prefix=no
+  need_version=no
+  case $host_cpu in
+  ia64*)
+    shrext_cmds='.so'
+    hardcode_into_libs=yes
+    dynamic_linker="$host_os dld.so"
+    shlibpath_var=LD_LIBRARY_PATH
+    shlibpath_overrides_runpath=yes # Unless +noenvvar is specified.
+    library_names_spec='$libname$release$shared_ext$versuffix $libname$release$shared_ext$major $libname$shared_ext'
+    soname_spec='$libname$release$shared_ext$major'
+    if test 32 = "$HPUX_IA64_MODE"; then
+      sys_lib_search_path_spec="/usr/lib/hpux32 /usr/local/lib/hpux32 /usr/local/lib"
+      sys_lib_dlsearch_path_spec=/usr/lib/hpux32
+    else
+      sys_lib_search_path_spec="/usr/lib/hpux64 /usr/local/lib/hpux64"
+      sys_lib_dlsearch_path_spec=/usr/lib/hpux64
+    fi
+    ;;
+  hppa*64*)
+    shrext_cmds='.sl'
+    hardcode_into_libs=yes
+    dynamic_linker="$host_os dld.sl"
+    shlibpath_var=LD_LIBRARY_PATH # How should we handle SHLIB_PATH
+    shlibpath_overrides_runpath=yes # Unless +noenvvar is specified.
+    library_names_spec='$libname$release$shared_ext$versuffix $libname$release$shared_ext$major $libname$shared_ext'
+    soname_spec='$libname$release$shared_ext$major'
+    sys_lib_search_path_spec="/usr/lib/pa20_64 /usr/ccs/lib/pa20_64"
+    sys_lib_dlsearch_path_spec=$sys_lib_search_path_spec
+    ;;
+  *)
+    shrext_cmds='.sl'
+    dynamic_linker="$host_os dld.sl"
+    shlibpath_var=SHLIB_PATH
+    shlibpath_overrides_runpath=no # +s is required to enable SHLIB_PATH
+    library_names_spec='$libname$release$shared_ext$versuffix $libname$release$shared_ext$major $libname$shared_ext'
+    soname_spec='$libname$release$shared_ext$major'
+    ;;
+  esac
+  # HP-UX runs *really* slowly unless shared libraries are mode 555, ...
+  postinstall_cmds='chmod 555 $lib'
+  # or fails outright, so override atomically:
+  install_override_mode=555
+  ;;
+
+interix[3-9]*)
+  version_type=linux # correct to gnu/linux during the next big refactor
+  need_lib_prefix=no
+  need_version=no
+  library_names_spec='$libname$release$shared_ext$versuffix $libname$release$shared_ext$major $libname$shared_ext'
+  soname_spec='$libname$release$shared_ext$major'
+  dynamic_linker='Interix 3.x ld.so.1 (PE, like ELF)'
+  shlibpath_var=LD_LIBRARY_PATH
+  shlibpath_overrides_runpath=no
+  hardcode_into_libs=yes
+  ;;
+
+irix5* | irix6* | nonstopux*)
+  case $host_os in
+    nonstopux*) version_type=nonstopux ;;
+    *)
+	if test yes = "$lt_cv_prog_gnu_ld"; then
+		version_type=linux # correct to gnu/linux during the next big refactor
+	else
+		version_type=irix
+	fi ;;
+  esac
+  need_lib_prefix=no
+  need_version=no
+  soname_spec='$libname$release$shared_ext$major'
+  library_names_spec='$libname$release$shared_ext$versuffix $libname$release$shared_ext$major $libname$release$shared_ext $libname$shared_ext'
+  case $host_os in
+  irix5* | nonstopux*)
+    libsuff= shlibsuff=
+    ;;
+  *)
+    case $LD in # libtool.m4 will add one of these switches to LD
+    *-32|*"-32 "|*-melf32bsmip|*"-melf32bsmip ")
+      libsuff= shlibsuff= libmagic=32-bit;;
+    *-n32|*"-n32 "|*-melf32bmipn32|*"-melf32bmipn32 ")
+      libsuff=32 shlibsuff=N32 libmagic=N32;;
+    *-64|*"-64 "|*-melf64bmip|*"-melf64bmip ")
+      libsuff=64 shlibsuff=64 libmagic=64-bit;;
+    *) libsuff= shlibsuff= libmagic=never-match;;
+    esac
+    ;;
+  esac
+  shlibpath_var=LD_LIBRARY${shlibsuff}_PATH
+  shlibpath_overrides_runpath=no
+  sys_lib_search_path_spec="/usr/lib$libsuff /lib$libsuff /usr/local/lib$libsuff"
+  sys_lib_dlsearch_path_spec="/usr/lib$libsuff /lib$libsuff"
+  hardcode_into_libs=yes
+  ;;
+
+# No shared lib support for Linux oldld, aout, or coff.
+linux*oldld* | linux*aout* | linux*coff*)
+  dynamic_linker=no
+  ;;
+
+linux*android*)
+  version_type=none # Android doesn't support versioned libraries.
+  need_lib_prefix=no
+  need_version=no
+  library_names_spec='$libname$release$shared_ext'
+  soname_spec='$libname$release$shared_ext'
+  finish_cmds=
+  shlibpath_var=LD_LIBRARY_PATH
+  shlibpath_overrides_runpath=yes
+
+  # This implies no fast_install, which is unacceptable.
+  # Some rework will be needed to allow for fast_install
+  # before this can be enabled.
+  hardcode_into_libs=yes
+
+  dynamic_linker='Android linker'
+  # Don't embed -rpath directories since the linker doesn't support them.
+  hardcode_libdir_flag_spec='-L$libdir'
+  ;;
+
+# This must be glibc/ELF.
+linux* | k*bsd*-gnu | kopensolaris*-gnu | gnu*)
+  version_type=linux # correct to gnu/linux during the next big refactor
+  need_lib_prefix=no
+  need_version=no
+  library_names_spec='$libname$release$shared_ext$versuffix $libname$release$shared_ext$major $libname$shared_ext'
+  soname_spec='$libname$release$shared_ext$major'
+  finish_cmds='PATH="\$PATH:/sbin" ldconfig -n $libdir'
+  shlibpath_var=LD_LIBRARY_PATH
+  shlibpath_overrides_runpath=no
+
+  # Some binutils ld are patched to set DT_RUNPATH
+  if ${lt_cv_shlibpath_overrides_runpath+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  lt_cv_shlibpath_overrides_runpath=no
+    save_LDFLAGS=$LDFLAGS
+    save_libdir=$libdir
+    eval "libdir=/foo; wl=\"$lt_prog_compiler_wl\"; \
+	 LDFLAGS=\"\$LDFLAGS $hardcode_libdir_flag_spec\""
+    cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+int
+main ()
+{
+
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_c_try_link "$LINENO"; then :
+  if  ($OBJDUMP -p conftest$ac_exeext) 2>/dev/null | grep "RUNPATH.*$libdir" >/dev/null; then :
+  lt_cv_shlibpath_overrides_runpath=yes
+fi
+fi
+rm -f core conftest.err conftest.$ac_objext \
+    conftest$ac_exeext conftest.$ac_ext
+    LDFLAGS=$save_LDFLAGS
+    libdir=$save_libdir
+
+fi
+
+  shlibpath_overrides_runpath=$lt_cv_shlibpath_overrides_runpath
+
+  # This implies no fast_install, which is unacceptable.
+  # Some rework will be needed to allow for fast_install
+  # before this can be enabled.
+  hardcode_into_libs=yes
+
+  # Add ABI-specific directories to the system library path.
+  sys_lib_dlsearch_path_spec="/lib64 /usr/lib64 /lib /usr/lib"
+
+  # Ideally, we could use ldconfig to report *all* directores which are
+  # searched for libraries, however this is still not possible.  Aside from not
+  # being certain /sbin/ldconfig is available, command
+  # 'ldconfig -N -X -v | grep ^/' on 64bit Fedora does not report /usr/lib64,
+  # even though it is searched at run-time.  Try to do the best guess by
+  # appending ld.so.conf contents (and includes) to the search path.
+  if test -f /etc/ld.so.conf; then
+    lt_ld_extra=`awk '/^include / { system(sprintf("cd /etc; cat %s 2>/dev/null", \$2)); skip = 1; } { if (!skip) print \$0; skip = 0; }' < /etc/ld.so.conf | $SED -e 's/#.*//;/^[	 ]*hwcap[	 ]/d;s/[:,	]/ /g;s/=[^=]*$//;s/=[^= ]* / /g;s/"//g;/^$/d' | tr '\n' ' '`
+    sys_lib_dlsearch_path_spec="$sys_lib_dlsearch_path_spec $lt_ld_extra"
+  fi
+
+  # We used to test for /lib/ld.so.1 and disable shared libraries on
+  # powerpc, because MkLinux only supported shared libraries with the
+  # GNU dynamic linker.  Since this was broken with cross compilers,
+  # most powerpc-linux boxes support dynamic linking these days and
+  # people can always --disable-shared, the test was removed, and we
+  # assume the GNU/Linux dynamic linker is in use.
+  dynamic_linker='GNU/Linux ld.so'
+  ;;
+
+netbsd*)
+  version_type=sunos
+  need_lib_prefix=no
+  need_version=no
+  if echo __ELF__ | $CC -E - | $GREP __ELF__ >/dev/null; then
+    library_names_spec='$libname$release$shared_ext$versuffix $libname$shared_ext$versuffix'
+    finish_cmds='PATH="\$PATH:/sbin" ldconfig -m $libdir'
+    dynamic_linker='NetBSD (a.out) ld.so'
+  else
+    library_names_spec='$libname$release$shared_ext$versuffix $libname$release$shared_ext$major $libname$shared_ext'
+    soname_spec='$libname$release$shared_ext$major'
+    dynamic_linker='NetBSD ld.elf_so'
+  fi
+  shlibpath_var=LD_LIBRARY_PATH
+  shlibpath_overrides_runpath=yes
+  hardcode_into_libs=yes
+  ;;
+
+newsos6)
+  version_type=linux # correct to gnu/linux during the next big refactor
+  library_names_spec='$libname$release$shared_ext$versuffix $libname$release$shared_ext$major $libname$shared_ext'
+  shlibpath_var=LD_LIBRARY_PATH
+  shlibpath_overrides_runpath=yes
+  ;;
+
+*nto* | *qnx*)
+  version_type=qnx
+  need_lib_prefix=no
+  need_version=no
+  library_names_spec='$libname$release$shared_ext$versuffix $libname$release$shared_ext$major $libname$shared_ext'
+  soname_spec='$libname$release$shared_ext$major'
+  shlibpath_var=LD_LIBRARY_PATH
+  shlibpath_overrides_runpath=no
+  hardcode_into_libs=yes
+  dynamic_linker='ldqnx.so'
+  ;;
+
+openbsd* | bitrig*)
+  version_type=sunos
+  sys_lib_dlsearch_path_spec=/usr/lib
+  need_lib_prefix=no
+  if test -z "`echo __ELF__ | $CC -E - | $GREP __ELF__`"; then
+    need_version=no
+  else
+    need_version=yes
+  fi
+  library_names_spec='$libname$release$shared_ext$versuffix $libname$shared_ext$versuffix'
+  finish_cmds='PATH="\$PATH:/sbin" ldconfig -m $libdir'
+  shlibpath_var=LD_LIBRARY_PATH
+  shlibpath_overrides_runpath=yes
+  ;;
+
+os2*)
+  libname_spec='$name'
+  version_type=windows
+  shrext_cmds=.dll
+  need_version=no
+  need_lib_prefix=no
+  # OS/2 can only load a DLL with a base name of 8 characters or less.
+  soname_spec='`test -n "$os2dllname" && libname="$os2dllname";
+    v=$($ECHO $release$versuffix | tr -d .-);
+    n=$($ECHO $libname | cut -b -$((8 - ${#v})) | tr . _);
+    $ECHO $n$v`$shared_ext'
+  library_names_spec='${libname}_dll.$libext'
+  dynamic_linker='OS/2 ld.exe'
+  shlibpath_var=BEGINLIBPATH
+  sys_lib_search_path_spec="/lib /usr/lib /usr/local/lib"
+  sys_lib_dlsearch_path_spec=$sys_lib_search_path_spec
+  postinstall_cmds='base_file=`basename \$file`~
+    dlpath=`$SHELL 2>&1 -c '\''. $dir/'\''\$base_file'\''i; $ECHO \$dlname'\''`~
+    dldir=$destdir/`dirname \$dlpath`~
+    test -d \$dldir || mkdir -p \$dldir~
+    $install_prog $dir/$dlname \$dldir/$dlname~
+    chmod a+x \$dldir/$dlname~
+    if test -n '\''$stripme'\'' && test -n '\''$striplib'\''; then
+      eval '\''$striplib \$dldir/$dlname'\'' || exit \$?;
+    fi'
+  postuninstall_cmds='dldll=`$SHELL 2>&1 -c '\''. $file; $ECHO \$dlname'\''`~
+    dlpath=$dir/\$dldll~
+    $RM \$dlpath'
+  ;;
+
+osf3* | osf4* | osf5*)
+  version_type=osf
+  need_lib_prefix=no
+  need_version=no
+  soname_spec='$libname$release$shared_ext$major'
+  library_names_spec='$libname$release$shared_ext$versuffix $libname$release$shared_ext$major $libname$shared_ext'
+  shlibpath_var=LD_LIBRARY_PATH
+  sys_lib_search_path_spec="/usr/shlib /usr/ccs/lib /usr/lib/cmplrs/cc /usr/lib /usr/local/lib /var/shlib"
+  sys_lib_dlsearch_path_spec=$sys_lib_search_path_spec
+  ;;
+
+rdos*)
+  dynamic_linker=no
+  ;;
+
+solaris*)
+  version_type=linux # correct to gnu/linux during the next big refactor
+  need_lib_prefix=no
+  need_version=no
+  library_names_spec='$libname$release$shared_ext$versuffix $libname$release$shared_ext$major $libname$shared_ext'
+  soname_spec='$libname$release$shared_ext$major'
+  shlibpath_var=LD_LIBRARY_PATH
+  shlibpath_overrides_runpath=yes
+  hardcode_into_libs=yes
+  # ldd complains unless libraries are executable
+  postinstall_cmds='chmod +x $lib'
+  ;;
+
+sunos4*)
+  version_type=sunos
+  library_names_spec='$libname$release$shared_ext$versuffix $libname$shared_ext$versuffix'
+  finish_cmds='PATH="\$PATH:/usr/etc" ldconfig $libdir'
+  shlibpath_var=LD_LIBRARY_PATH
+  shlibpath_overrides_runpath=yes
+  if test yes = "$with_gnu_ld"; then
+    need_lib_prefix=no
+  fi
+  need_version=yes
+  ;;
+
+sysv4 | sysv4.3*)
+  version_type=linux # correct to gnu/linux during the next big refactor
+  library_names_spec='$libname$release$shared_ext$versuffix $libname$release$shared_ext$major $libname$shared_ext'
+  soname_spec='$libname$release$shared_ext$major'
+  shlibpath_var=LD_LIBRARY_PATH
+  case $host_vendor in
+    sni)
+      shlibpath_overrides_runpath=no
+      need_lib_prefix=no
+      runpath_var=LD_RUN_PATH
+      ;;
+    siemens)
+      need_lib_prefix=no
+      ;;
+    motorola)
+      need_lib_prefix=no
+      need_version=no
+      shlibpath_overrides_runpath=no
+      sys_lib_search_path_spec='/lib /usr/lib /usr/ccs/lib'
+      ;;
+  esac
+  ;;
+
+sysv4*MP*)
+  if test -d /usr/nec; then
+    version_type=linux # correct to gnu/linux during the next big refactor
+    library_names_spec='$libname$shared_ext.$versuffix $libname$shared_ext.$major $libname$shared_ext'
+    soname_spec='$libname$shared_ext.$major'
+    shlibpath_var=LD_LIBRARY_PATH
+  fi
+  ;;
+
+sysv5* | sco3.2v5* | sco5v6* | unixware* | OpenUNIX* | sysv4*uw2*)
+  version_type=sco
+  need_lib_prefix=no
+  need_version=no
+  library_names_spec='$libname$release$shared_ext$versuffix $libname$release$shared_ext $libname$shared_ext'
+  soname_spec='$libname$release$shared_ext$major'
+  shlibpath_var=LD_LIBRARY_PATH
+  shlibpath_overrides_runpath=yes
+  hardcode_into_libs=yes
+  if test yes = "$with_gnu_ld"; then
+    sys_lib_search_path_spec='/usr/local/lib /usr/gnu/lib /usr/ccs/lib /usr/lib /lib'
+  else
+    sys_lib_search_path_spec='/usr/ccs/lib /usr/lib'
+    case $host_os in
+      sco3.2v5*)
+        sys_lib_search_path_spec="$sys_lib_search_path_spec /lib"
+	;;
+    esac
+  fi
+  sys_lib_dlsearch_path_spec='/usr/lib'
+  ;;
+
+tpf*)
+  # TPF is a cross-target only.  Preferred cross-host = GNU/Linux.
+  version_type=linux # correct to gnu/linux during the next big refactor
+  need_lib_prefix=no
+  need_version=no
+  library_names_spec='$libname$release$shared_ext$versuffix $libname$release$shared_ext$major $libname$shared_ext'
+  shlibpath_var=LD_LIBRARY_PATH
+  shlibpath_overrides_runpath=no
+  hardcode_into_libs=yes
+  ;;
+
+uts4*)
+  version_type=linux # correct to gnu/linux during the next big refactor
+  library_names_spec='$libname$release$shared_ext$versuffix $libname$release$shared_ext$major $libname$shared_ext'
+  soname_spec='$libname$release$shared_ext$major'
+  shlibpath_var=LD_LIBRARY_PATH
+  ;;
+
+*)
+  dynamic_linker=no
+  ;;
+esac
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $dynamic_linker" >&5
+$as_echo "$dynamic_linker" >&6; }
+test no = "$dynamic_linker" && can_build_shared=no
+
+variables_saved_for_relink="PATH $shlibpath_var $runpath_var"
+if test yes = "$GCC"; then
+  variables_saved_for_relink="$variables_saved_for_relink GCC_EXEC_PREFIX COMPILER_PATH LIBRARY_PATH"
+fi
+
+if test set = "${lt_cv_sys_lib_search_path_spec+set}"; then
+  sys_lib_search_path_spec=$lt_cv_sys_lib_search_path_spec
+fi
+
+if test set = "${lt_cv_sys_lib_dlsearch_path_spec+set}"; then
+  sys_lib_dlsearch_path_spec=$lt_cv_sys_lib_dlsearch_path_spec
+fi
+
+# remember unaugmented sys_lib_dlsearch_path content for libtool script decls...
+configure_time_dlsearch_path=$sys_lib_dlsearch_path_spec
+
+# ... but it needs LT_SYS_LIBRARY_PATH munging for other configure-time code
+func_munge_path_list sys_lib_dlsearch_path_spec "$LT_SYS_LIBRARY_PATH"
+
+# to be used as default LT_SYS_LIBRARY_PATH value in generated libtool
+configure_time_lt_sys_library_path=$LT_SYS_LIBRARY_PATH
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking how to hardcode library paths into programs" >&5
+$as_echo_n "checking how to hardcode library paths into programs... " >&6; }
+hardcode_action=
+if test -n "$hardcode_libdir_flag_spec" ||
+   test -n "$runpath_var" ||
+   test yes = "$hardcode_automatic"; then
+
+  # We can hardcode non-existent directories.
+  if test no != "$hardcode_direct" &&
+     # If the only mechanism to avoid hardcoding is shlibpath_var, we
+     # have to relink, otherwise we might link with an installed library
+     # when we should be linking with a yet-to-be-installed one
+     ## test no != "$_LT_TAGVAR(hardcode_shlibpath_var, )" &&
+     test no != "$hardcode_minus_L"; then
+    # Linking always hardcodes the temporary library directory.
+    hardcode_action=relink
+  else
+    # We can link without hardcoding, and we can hardcode nonexisting dirs.
+    hardcode_action=immediate
+  fi
+else
+  # We cannot hardcode anything, or else we can only hardcode existing
+  # directories.
+  hardcode_action=unsupported
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $hardcode_action" >&5
+$as_echo "$hardcode_action" >&6; }
+
+if test relink = "$hardcode_action" ||
+   test yes = "$inherit_rpath"; then
+  # Fast installation is not supported
+  enable_fast_install=no
+elif test yes = "$shlibpath_overrides_runpath" ||
+     test no = "$enable_shared"; then
+  # Fast installation is not necessary
+  enable_fast_install=needless
+fi
+
+
+
+
+
+
+  if test yes != "$enable_dlopen"; then
+  enable_dlopen=unknown
+  enable_dlopen_self=unknown
+  enable_dlopen_self_static=unknown
+else
+  lt_cv_dlopen=no
+  lt_cv_dlopen_libs=
+
+  case $host_os in
+  beos*)
+    lt_cv_dlopen=load_add_on
+    lt_cv_dlopen_libs=
+    lt_cv_dlopen_self=yes
+    ;;
+
+  mingw* | pw32* | cegcc*)
+    lt_cv_dlopen=LoadLibrary
+    lt_cv_dlopen_libs=
+    ;;
+
+  cygwin*)
+    lt_cv_dlopen=dlopen
+    lt_cv_dlopen_libs=
+    ;;
+
+  darwin*)
+    # if libdl is installed we need to link against it
+    { $as_echo "$as_me:${as_lineno-$LINENO}: checking for dlopen in -ldl" >&5
+$as_echo_n "checking for dlopen in -ldl... " >&6; }
+if ${ac_cv_lib_dl_dlopen+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  ac_check_lib_save_LIBS=$LIBS
+LIBS="-ldl  $LIBS"
+cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+/* Override any GCC internal prototype to avoid an error.
+   Use char because int might match the return type of a GCC
+   builtin and then its argument prototype would still apply.  */
+#ifdef __cplusplus
+extern "C"
+#endif
+char dlopen ();
+int
+main ()
+{
+return dlopen ();
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_c_try_link "$LINENO"; then :
+  ac_cv_lib_dl_dlopen=yes
+else
+  ac_cv_lib_dl_dlopen=no
+fi
+rm -f core conftest.err conftest.$ac_objext \
+    conftest$ac_exeext conftest.$ac_ext
+LIBS=$ac_check_lib_save_LIBS
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_lib_dl_dlopen" >&5
+$as_echo "$ac_cv_lib_dl_dlopen" >&6; }
+if test "x$ac_cv_lib_dl_dlopen" = xyes; then :
+  lt_cv_dlopen=dlopen lt_cv_dlopen_libs=-ldl
+else
+
+    lt_cv_dlopen=dyld
+    lt_cv_dlopen_libs=
+    lt_cv_dlopen_self=yes
+
+fi
+
+    ;;
+
+  tpf*)
+    # Don't try to run any link tests for TPF.  We know it's impossible
+    # because TPF is a cross-compiler, and we know how we open DSOs.
+    lt_cv_dlopen=dlopen
+    lt_cv_dlopen_libs=
+    lt_cv_dlopen_self=no
+    ;;
+
+  *)
+    ac_fn_c_check_func "$LINENO" "shl_load" "ac_cv_func_shl_load"
+if test "x$ac_cv_func_shl_load" = xyes; then :
+  lt_cv_dlopen=shl_load
+else
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for shl_load in -ldld" >&5
+$as_echo_n "checking for shl_load in -ldld... " >&6; }
+if ${ac_cv_lib_dld_shl_load+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  ac_check_lib_save_LIBS=$LIBS
+LIBS="-ldld  $LIBS"
+cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+/* Override any GCC internal prototype to avoid an error.
+   Use char because int might match the return type of a GCC
+   builtin and then its argument prototype would still apply.  */
+#ifdef __cplusplus
+extern "C"
+#endif
+char shl_load ();
+int
+main ()
+{
+return shl_load ();
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_c_try_link "$LINENO"; then :
+  ac_cv_lib_dld_shl_load=yes
+else
+  ac_cv_lib_dld_shl_load=no
+fi
+rm -f core conftest.err conftest.$ac_objext \
+    conftest$ac_exeext conftest.$ac_ext
+LIBS=$ac_check_lib_save_LIBS
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_lib_dld_shl_load" >&5
+$as_echo "$ac_cv_lib_dld_shl_load" >&6; }
+if test "x$ac_cv_lib_dld_shl_load" = xyes; then :
+  lt_cv_dlopen=shl_load lt_cv_dlopen_libs=-ldld
+else
+  ac_fn_c_check_func "$LINENO" "dlopen" "ac_cv_func_dlopen"
+if test "x$ac_cv_func_dlopen" = xyes; then :
+  lt_cv_dlopen=dlopen
+else
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for dlopen in -ldl" >&5
+$as_echo_n "checking for dlopen in -ldl... " >&6; }
+if ${ac_cv_lib_dl_dlopen+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  ac_check_lib_save_LIBS=$LIBS
+LIBS="-ldl  $LIBS"
+cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+/* Override any GCC internal prototype to avoid an error.
+   Use char because int might match the return type of a GCC
+   builtin and then its argument prototype would still apply.  */
+#ifdef __cplusplus
+extern "C"
+#endif
+char dlopen ();
+int
+main ()
+{
+return dlopen ();
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_c_try_link "$LINENO"; then :
+  ac_cv_lib_dl_dlopen=yes
+else
+  ac_cv_lib_dl_dlopen=no
+fi
+rm -f core conftest.err conftest.$ac_objext \
+    conftest$ac_exeext conftest.$ac_ext
+LIBS=$ac_check_lib_save_LIBS
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_lib_dl_dlopen" >&5
+$as_echo "$ac_cv_lib_dl_dlopen" >&6; }
+if test "x$ac_cv_lib_dl_dlopen" = xyes; then :
+  lt_cv_dlopen=dlopen lt_cv_dlopen_libs=-ldl
+else
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for dlopen in -lsvld" >&5
+$as_echo_n "checking for dlopen in -lsvld... " >&6; }
+if ${ac_cv_lib_svld_dlopen+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  ac_check_lib_save_LIBS=$LIBS
+LIBS="-lsvld  $LIBS"
+cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+/* Override any GCC internal prototype to avoid an error.
+   Use char because int might match the return type of a GCC
+   builtin and then its argument prototype would still apply.  */
+#ifdef __cplusplus
+extern "C"
+#endif
+char dlopen ();
+int
+main ()
+{
+return dlopen ();
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_c_try_link "$LINENO"; then :
+  ac_cv_lib_svld_dlopen=yes
+else
+  ac_cv_lib_svld_dlopen=no
+fi
+rm -f core conftest.err conftest.$ac_objext \
+    conftest$ac_exeext conftest.$ac_ext
+LIBS=$ac_check_lib_save_LIBS
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_lib_svld_dlopen" >&5
+$as_echo "$ac_cv_lib_svld_dlopen" >&6; }
+if test "x$ac_cv_lib_svld_dlopen" = xyes; then :
+  lt_cv_dlopen=dlopen lt_cv_dlopen_libs=-lsvld
+else
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for dld_link in -ldld" >&5
+$as_echo_n "checking for dld_link in -ldld... " >&6; }
+if ${ac_cv_lib_dld_dld_link+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  ac_check_lib_save_LIBS=$LIBS
+LIBS="-ldld  $LIBS"
+cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+/* Override any GCC internal prototype to avoid an error.
+   Use char because int might match the return type of a GCC
+   builtin and then its argument prototype would still apply.  */
+#ifdef __cplusplus
+extern "C"
+#endif
+char dld_link ();
+int
+main ()
+{
+return dld_link ();
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_c_try_link "$LINENO"; then :
+  ac_cv_lib_dld_dld_link=yes
+else
+  ac_cv_lib_dld_dld_link=no
+fi
+rm -f core conftest.err conftest.$ac_objext \
+    conftest$ac_exeext conftest.$ac_ext
+LIBS=$ac_check_lib_save_LIBS
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_lib_dld_dld_link" >&5
+$as_echo "$ac_cv_lib_dld_dld_link" >&6; }
+if test "x$ac_cv_lib_dld_dld_link" = xyes; then :
+  lt_cv_dlopen=dld_link lt_cv_dlopen_libs=-ldld
+fi
+
+
+fi
+
+
+fi
+
+
+fi
+
+
+fi
+
+
+fi
+
+    ;;
+  esac
+
+  if test no = "$lt_cv_dlopen"; then
+    enable_dlopen=no
+  else
+    enable_dlopen=yes
+  fi
+
+  case $lt_cv_dlopen in
+  dlopen)
+    save_CPPFLAGS=$CPPFLAGS
+    test yes = "$ac_cv_header_dlfcn_h" && CPPFLAGS="$CPPFLAGS -DHAVE_DLFCN_H"
+
+    save_LDFLAGS=$LDFLAGS
+    wl=$lt_prog_compiler_wl eval LDFLAGS=\"\$LDFLAGS $export_dynamic_flag_spec\"
+
+    save_LIBS=$LIBS
+    LIBS="$lt_cv_dlopen_libs $LIBS"
+
+    { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether a program can dlopen itself" >&5
+$as_echo_n "checking whether a program can dlopen itself... " >&6; }
+if ${lt_cv_dlopen_self+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  	  if test yes = "$cross_compiling"; then :
+  lt_cv_dlopen_self=cross
+else
+  lt_dlunknown=0; lt_dlno_uscore=1; lt_dlneed_uscore=2
+  lt_status=$lt_dlunknown
+  cat > conftest.$ac_ext <<_LT_EOF
+#line $LINENO "configure"
+#include "confdefs.h"
+
+#if HAVE_DLFCN_H
+#include <dlfcn.h>
+#endif
+
+#include <stdio.h>
+
+#ifdef RTLD_GLOBAL
+#  define LT_DLGLOBAL		RTLD_GLOBAL
+#else
+#  ifdef DL_GLOBAL
+#    define LT_DLGLOBAL		DL_GLOBAL
+#  else
+#    define LT_DLGLOBAL		0
+#  endif
+#endif
+
+/* We may have to define LT_DLLAZY_OR_NOW in the command line if we
+   find out it does not work in some platform. */
+#ifndef LT_DLLAZY_OR_NOW
+#  ifdef RTLD_LAZY
+#    define LT_DLLAZY_OR_NOW		RTLD_LAZY
+#  else
+#    ifdef DL_LAZY
+#      define LT_DLLAZY_OR_NOW		DL_LAZY
+#    else
+#      ifdef RTLD_NOW
+#        define LT_DLLAZY_OR_NOW	RTLD_NOW
+#      else
+#        ifdef DL_NOW
+#          define LT_DLLAZY_OR_NOW	DL_NOW
+#        else
+#          define LT_DLLAZY_OR_NOW	0
+#        endif
+#      endif
+#    endif
+#  endif
+#endif
+
+/* When -fvisibility=hidden is used, assume the code has been annotated
+   correspondingly for the symbols needed.  */
+#if defined __GNUC__ && (((__GNUC__ == 3) && (__GNUC_MINOR__ >= 3)) || (__GNUC__ > 3))
+int fnord () __attribute__((visibility("default")));
+#endif
+
+int fnord () { return 42; }
+int main ()
+{
+  void *self = dlopen (0, LT_DLGLOBAL|LT_DLLAZY_OR_NOW);
+  int status = $lt_dlunknown;
+
+  if (self)
+    {
+      if (dlsym (self,"fnord"))       status = $lt_dlno_uscore;
+      else
+        {
+	  if (dlsym( self,"_fnord"))  status = $lt_dlneed_uscore;
+          else puts (dlerror ());
+	}
+      /* dlclose (self); */
+    }
+  else
+    puts (dlerror ());
+
+  return status;
+}
+_LT_EOF
+  if { { eval echo "\"\$as_me\":${as_lineno-$LINENO}: \"$ac_link\""; } >&5
+  (eval $ac_link) 2>&5
+  ac_status=$?
+  $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+  test $ac_status = 0; } && test -s "conftest$ac_exeext" 2>/dev/null; then
+    (./conftest; exit; ) >&5 2>/dev/null
+    lt_status=$?
+    case x$lt_status in
+      x$lt_dlno_uscore) lt_cv_dlopen_self=yes ;;
+      x$lt_dlneed_uscore) lt_cv_dlopen_self=yes ;;
+      x$lt_dlunknown|x*) lt_cv_dlopen_self=no ;;
+    esac
+  else :
+    # compilation failed
+    lt_cv_dlopen_self=no
+  fi
+fi
+rm -fr conftest*
+
+
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $lt_cv_dlopen_self" >&5
+$as_echo "$lt_cv_dlopen_self" >&6; }
+
+    if test yes = "$lt_cv_dlopen_self"; then
+      wl=$lt_prog_compiler_wl eval LDFLAGS=\"\$LDFLAGS $lt_prog_compiler_static\"
+      { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether a statically linked program can dlopen itself" >&5
+$as_echo_n "checking whether a statically linked program can dlopen itself... " >&6; }
+if ${lt_cv_dlopen_self_static+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  	  if test yes = "$cross_compiling"; then :
+  lt_cv_dlopen_self_static=cross
+else
+  lt_dlunknown=0; lt_dlno_uscore=1; lt_dlneed_uscore=2
+  lt_status=$lt_dlunknown
+  cat > conftest.$ac_ext <<_LT_EOF
+#line $LINENO "configure"
+#include "confdefs.h"
+
+#if HAVE_DLFCN_H
+#include <dlfcn.h>
+#endif
+
+#include <stdio.h>
+
+#ifdef RTLD_GLOBAL
+#  define LT_DLGLOBAL		RTLD_GLOBAL
+#else
+#  ifdef DL_GLOBAL
+#    define LT_DLGLOBAL		DL_GLOBAL
+#  else
+#    define LT_DLGLOBAL		0
+#  endif
+#endif
+
+/* We may have to define LT_DLLAZY_OR_NOW in the command line if we
+   find out it does not work in some platform. */
+#ifndef LT_DLLAZY_OR_NOW
+#  ifdef RTLD_LAZY
+#    define LT_DLLAZY_OR_NOW		RTLD_LAZY
+#  else
+#    ifdef DL_LAZY
+#      define LT_DLLAZY_OR_NOW		DL_LAZY
+#    else
+#      ifdef RTLD_NOW
+#        define LT_DLLAZY_OR_NOW	RTLD_NOW
+#      else
+#        ifdef DL_NOW
+#          define LT_DLLAZY_OR_NOW	DL_NOW
+#        else
+#          define LT_DLLAZY_OR_NOW	0
+#        endif
+#      endif
+#    endif
+#  endif
+#endif
+
+/* When -fvisibility=hidden is used, assume the code has been annotated
+   correspondingly for the symbols needed.  */
+#if defined __GNUC__ && (((__GNUC__ == 3) && (__GNUC_MINOR__ >= 3)) || (__GNUC__ > 3))
+int fnord () __attribute__((visibility("default")));
+#endif
+
+int fnord () { return 42; }
+int main ()
+{
+  void *self = dlopen (0, LT_DLGLOBAL|LT_DLLAZY_OR_NOW);
+  int status = $lt_dlunknown;
+
+  if (self)
+    {
+      if (dlsym (self,"fnord"))       status = $lt_dlno_uscore;
+      else
+        {
+	  if (dlsym( self,"_fnord"))  status = $lt_dlneed_uscore;
+          else puts (dlerror ());
+	}
+      /* dlclose (self); */
+    }
+  else
+    puts (dlerror ());
+
+  return status;
+}
+_LT_EOF
+  if { { eval echo "\"\$as_me\":${as_lineno-$LINENO}: \"$ac_link\""; } >&5
+  (eval $ac_link) 2>&5
+  ac_status=$?
+  $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+  test $ac_status = 0; } && test -s "conftest$ac_exeext" 2>/dev/null; then
+    (./conftest; exit; ) >&5 2>/dev/null
+    lt_status=$?
+    case x$lt_status in
+      x$lt_dlno_uscore) lt_cv_dlopen_self_static=yes ;;
+      x$lt_dlneed_uscore) lt_cv_dlopen_self_static=yes ;;
+      x$lt_dlunknown|x*) lt_cv_dlopen_self_static=no ;;
+    esac
+  else :
+    # compilation failed
+    lt_cv_dlopen_self_static=no
+  fi
+fi
+rm -fr conftest*
+
+
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $lt_cv_dlopen_self_static" >&5
+$as_echo "$lt_cv_dlopen_self_static" >&6; }
+    fi
+
+    CPPFLAGS=$save_CPPFLAGS
+    LDFLAGS=$save_LDFLAGS
+    LIBS=$save_LIBS
+    ;;
+  esac
+
+  case $lt_cv_dlopen_self in
+  yes|no) enable_dlopen_self=$lt_cv_dlopen_self ;;
+  *) enable_dlopen_self=unknown ;;
+  esac
+
+  case $lt_cv_dlopen_self_static in
+  yes|no) enable_dlopen_self_static=$lt_cv_dlopen_self_static ;;
+  *) enable_dlopen_self_static=unknown ;;
+  esac
+fi
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+striplib=
+old_striplib=
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking whether stripping libraries is possible" >&5
+$as_echo_n "checking whether stripping libraries is possible... " >&6; }
+if test -n "$STRIP" && $STRIP -V 2>&1 | $GREP "GNU strip" >/dev/null; then
+  test -z "$old_striplib" && old_striplib="$STRIP --strip-debug"
+  test -z "$striplib" && striplib="$STRIP --strip-unneeded"
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+$as_echo "yes" >&6; }
+else
+# FIXME - insert some real tests, host_os isn't really good enough
+  case $host_os in
+  darwin*)
+    if test -n "$STRIP"; then
+      striplib="$STRIP -x"
+      old_striplib="$STRIP -S"
+      { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+$as_echo "yes" >&6; }
+    else
+      { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+    fi
+    ;;
+  *)
+    { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+    ;;
+  esac
+fi
+
+
+
+
+
+
+
+
+
+
+
+
+  # Report what library types will actually be built
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking if libtool supports shared libraries" >&5
+$as_echo_n "checking if libtool supports shared libraries... " >&6; }
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $can_build_shared" >&5
+$as_echo "$can_build_shared" >&6; }
+
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether to build shared libraries" >&5
+$as_echo_n "checking whether to build shared libraries... " >&6; }
+  test no = "$can_build_shared" && enable_shared=no
+
+  # On AIX, shared libraries and static libraries use the same namespace, and
+  # are all built from PIC.
+  case $host_os in
+  aix3*)
+    test yes = "$enable_shared" && enable_static=no
+    if test -n "$RANLIB"; then
+      archive_cmds="$archive_cmds~\$RANLIB \$lib"
+      postinstall_cmds='$RANLIB $lib'
+    fi
+    ;;
+
+  aix[4-9]*)
+    if test ia64 != "$host_cpu"; then
+      case $enable_shared,$with_aix_soname,$aix_use_runtimelinking in
+      yes,aix,yes) ;;			# shared object as lib.so file only
+      yes,svr4,*) ;;			# shared object as lib.so archive member only
+      yes,*) enable_static=no ;;	# shared object in lib.a archive as well
+      esac
+    fi
+    ;;
+  esac
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $enable_shared" >&5
+$as_echo "$enable_shared" >&6; }
+
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether to build static libraries" >&5
+$as_echo_n "checking whether to build static libraries... " >&6; }
+  # Make sure either enable_shared or enable_static is yes.
+  test yes = "$enable_shared" || enable_static=yes
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $enable_static" >&5
+$as_echo "$enable_static" >&6; }
+
+
+
+
+fi
+ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+CC=$lt_save_CC
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+        ac_config_commands="$ac_config_commands libtool"
+
+
+
+
+# Only expand once:
+
+
+		if test -n "$ac_tool_prefix"; then
+  # Extract the first word of "${ac_tool_prefix}windres", so it can be a program name with args.
+set dummy ${ac_tool_prefix}windres; ac_word=$2
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
+$as_echo_n "checking for $ac_word... " >&6; }
+if ${ac_cv_prog_RC+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  if test -n "$RC"; then
+  ac_cv_prog_RC="$RC" # Let the user override the test.
+else
+as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+for as_dir in $PATH
+do
+  IFS=$as_save_IFS
+  test -z "$as_dir" && as_dir=.
+    for ac_exec_ext in '' $ac_executable_extensions; do
+  if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
+    ac_cv_prog_RC="${ac_tool_prefix}windres"
+    $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
+    break 2
+  fi
+done
+  done
+IFS=$as_save_IFS
+
+fi
+fi
+RC=$ac_cv_prog_RC
+if test -n "$RC"; then
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $RC" >&5
+$as_echo "$RC" >&6; }
+else
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+fi
+
+
+fi
+if test -z "$ac_cv_prog_RC"; then
+  ac_ct_RC=$RC
+  # Extract the first word of "windres", so it can be a program name with args.
+set dummy windres; ac_word=$2
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
+$as_echo_n "checking for $ac_word... " >&6; }
+if ${ac_cv_prog_ac_ct_RC+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  if test -n "$ac_ct_RC"; then
+  ac_cv_prog_ac_ct_RC="$ac_ct_RC" # Let the user override the test.
+else
+as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+for as_dir in $PATH
+do
+  IFS=$as_save_IFS
+  test -z "$as_dir" && as_dir=.
+    for ac_exec_ext in '' $ac_executable_extensions; do
+  if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
+    ac_cv_prog_ac_ct_RC="windres"
+    $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
+    break 2
+  fi
+done
+  done
+IFS=$as_save_IFS
+
+fi
+fi
+ac_ct_RC=$ac_cv_prog_ac_ct_RC
+if test -n "$ac_ct_RC"; then
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_ct_RC" >&5
+$as_echo "$ac_ct_RC" >&6; }
+else
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+fi
+
+  if test "x$ac_ct_RC" = x; then
+    RC=""
+  else
+    case $cross_compiling:$ac_tool_warned in
+yes:)
+{ $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: using cross tools not prefixed with host triplet" >&5
+$as_echo "$as_me: WARNING: using cross tools not prefixed with host triplet" >&2;}
+ac_tool_warned=yes ;;
+esac
+    RC=$ac_ct_RC
+  fi
+else
+  RC="$ac_cv_prog_RC"
+fi
+
+
+
+
+# Source file extension for RC test sources.
+ac_ext=rc
+
+# Object file extension for compiled RC test sources.
+objext=o
+objext_RC=$objext
+
+# Code to be used in simple compile tests
+lt_simple_compile_test_code='sample MENU { MENUITEM "&Soup", 100, CHECKED }'
+
+# Code to be used in simple link tests
+lt_simple_link_test_code=$lt_simple_compile_test_code
+
+# ltmain only uses $CC for tagged configurations so make sure $CC is set.
+
+
+
+
+
+
+# If no C compiler was specified, use CC.
+LTCC=${LTCC-"$CC"}
+
+# If no C compiler flags were specified, use CFLAGS.
+LTCFLAGS=${LTCFLAGS-"$CFLAGS"}
+
+# Allow CC to be a program name with arguments.
+compiler=$CC
+
+
+# save warnings/boilerplate of simple test code
+ac_outfile=conftest.$ac_objext
+echo "$lt_simple_compile_test_code" >conftest.$ac_ext
+eval "$ac_compile" 2>&1 >/dev/null | $SED '/^$/d; /^ *+/d' >conftest.err
+_lt_compiler_boilerplate=`cat conftest.err`
+$RM conftest*
+
+ac_outfile=conftest.$ac_objext
+echo "$lt_simple_link_test_code" >conftest.$ac_ext
+eval "$ac_link" 2>&1 >/dev/null | $SED '/^$/d; /^ *+/d' >conftest.err
+_lt_linker_boilerplate=`cat conftest.err`
+$RM -r conftest*
+
+
+# Allow CC to be a program name with arguments.
+lt_save_CC=$CC
+lt_save_CFLAGS=$CFLAGS
+lt_save_GCC=$GCC
+GCC=
+CC=${RC-"windres"}
+CFLAGS=
+compiler=$CC
+compiler_RC=$CC
+func_cc_basename $compiler
+cc_basename=$func_cc_basename_result
+
+lt_cv_prog_compiler_c_o_RC=yes
+
+if test -n "$compiler"; then
+  :
+
+
+
+fi
+
+GCC=$lt_save_GCC
+ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+CC=$lt_save_CC
+CFLAGS=$lt_save_CFLAGS
+
+
+
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for an ANSI C-conforming const" >&5
+$as_echo_n "checking for an ANSI C-conforming const... " >&6; }
+if ${ac_cv_c_const+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+int
+main ()
+{
+
+#ifndef __cplusplus
+  /* Ultrix mips cc rejects this sort of thing.  */
+  typedef int charset[2];
+  const charset cs = { 0, 0 };
+  /* SunOS 4.1.1 cc rejects this.  */
+  char const *const *pcpcc;
+  char **ppc;
+  /* NEC SVR4.0.2 mips cc rejects this.  */
+  struct point {int x, y;};
+  static struct point const zero = {0,0};
+  /* AIX XL C 1.02.0.0 rejects this.
+     It does not let you subtract one const X* pointer from another in
+     an arm of an if-expression whose if-part is not a constant
+     expression */
+  const char *g = "string";
+  pcpcc = &g + (g ? g-g : 0);
+  /* HPUX 7.0 cc rejects these. */
+  ++pcpcc;
+  ppc = (char**) pcpcc;
+  pcpcc = (char const *const *) ppc;
+  { /* SCO 3.2v4 cc rejects this sort of thing.  */
+    char tx;
+    char *t = &tx;
+    char const *s = 0 ? (char *) 0 : (char const *) 0;
+
+    *t++ = 0;
+    if (s) return 0;
+  }
+  { /* Someone thinks the Sun supposedly-ANSI compiler will reject this.  */
+    int x[] = {25, 17};
+    const int *foo = &x[0];
+    ++foo;
+  }
+  { /* Sun SC1.0 ANSI compiler rejects this -- but not the above. */
+    typedef const int *iptr;
+    iptr p = 0;
+    ++p;
+  }
+  { /* AIX XL C 1.02.0.0 rejects this sort of thing, saying
+       "k.c", line 2.27: 1506-025 (S) Operand must be a modifiable lvalue. */
+    struct s { int j; const int *ap[3]; } bx;
+    struct s *b = &bx; b->j = 5;
+  }
+  { /* ULTRIX-32 V3.1 (Rev 9) vcc rejects this */
+    const int foo = 10;
+    if (!foo) return 0;
+  }
+  return !cs[0] && !zero.x;
+#endif
+
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_c_try_compile "$LINENO"; then :
+  ac_cv_c_const=yes
+else
+  ac_cv_c_const=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_c_const" >&5
+$as_echo "$ac_cv_c_const" >&6; }
+if test $ac_cv_c_const = no; then
+
+$as_echo "#define const /**/" >>confdefs.h
+
+fi
+
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for inline" >&5
+$as_echo_n "checking for inline... " >&6; }
+if ${ac_cv_c_inline+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  ac_cv_c_inline=no
+for ac_kw in inline __inline__ __inline; do
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#ifndef __cplusplus
+typedef int foo_t;
+static $ac_kw foo_t static_foo () {return 0; }
+$ac_kw foo_t foo () {return 0; }
+#endif
+
+_ACEOF
+if ac_fn_c_try_compile "$LINENO"; then :
+  ac_cv_c_inline=$ac_kw
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+  test "$ac_cv_c_inline" != no && break
+done
+
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_c_inline" >&5
+$as_echo "$ac_cv_c_inline" >&6; }
+
+case $ac_cv_c_inline in
+  inline | yes) ;;
+  *)
+    case $ac_cv_c_inline in
+      no) ac_val=;;
+      *) ac_val=$ac_cv_c_inline;;
+    esac
+    cat >>confdefs.h <<_ACEOF
+#ifndef __cplusplus
+#define inline $ac_val
+#endif
+_ACEOF
+    ;;
+esac
+
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for working volatile" >&5
+$as_echo_n "checking for working volatile... " >&6; }
+if ${ac_cv_c_volatile+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+int
+main ()
+{
+
+volatile int x;
+int * volatile y = (int *) 0;
+return !x && !y;
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_c_try_compile "$LINENO"; then :
+  ac_cv_c_volatile=yes
+else
+  ac_cv_c_volatile=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_c_volatile" >&5
+$as_echo "$ac_cv_c_volatile" >&6; }
+if test $ac_cv_c_volatile = no; then
+
+$as_echo "#define volatile /**/" >>confdefs.h
+
+fi
+
+ac_fn_c_check_type "$LINENO" "off_t" "ac_cv_type_off_t" "$ac_includes_default"
+if test "x$ac_cv_type_off_t" = xyes; then :
+
+else
+
+cat >>confdefs.h <<_ACEOF
+#define off_t long int
+_ACEOF
+
+fi
+
+ac_fn_c_check_type "$LINENO" "pid_t" "ac_cv_type_pid_t" "$ac_includes_default"
+if test "x$ac_cv_type_pid_t" = xyes; then :
+
+else
+
+cat >>confdefs.h <<_ACEOF
+#define pid_t int
+_ACEOF
+
+fi
+
+ac_fn_c_check_type "$LINENO" "size_t" "ac_cv_type_size_t" "$ac_includes_default"
+if test "x$ac_cv_type_size_t" = xyes; then :
+
+else
+
+cat >>confdefs.h <<_ACEOF
+#define size_t unsigned int
+_ACEOF
+
+fi
+
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for uid_t in sys/types.h" >&5
+$as_echo_n "checking for uid_t in sys/types.h... " >&6; }
+if ${ac_cv_type_uid_t+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <sys/types.h>
+
+_ACEOF
+if (eval "$ac_cpp conftest.$ac_ext") 2>&5 |
+  $EGREP "uid_t" >/dev/null 2>&1; then :
+  ac_cv_type_uid_t=yes
+else
+  ac_cv_type_uid_t=no
+fi
+rm -f conftest*
+
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_type_uid_t" >&5
+$as_echo "$ac_cv_type_uid_t" >&6; }
+if test $ac_cv_type_uid_t = no; then
+
+$as_echo "#define uid_t int" >>confdefs.h
+
+
+$as_echo "#define gid_t int" >>confdefs.h
+
+fi
+
+ac_fn_c_find_intX_t "$LINENO" "8" "ac_cv_c_int8_t"
+case $ac_cv_c_int8_t in #(
+  no|yes) ;; #(
+  *)
+
+cat >>confdefs.h <<_ACEOF
+#define int8_t $ac_cv_c_int8_t
+_ACEOF
+;;
+esac
+
+ac_fn_c_find_intX_t "$LINENO" "16" "ac_cv_c_int16_t"
+case $ac_cv_c_int16_t in #(
+  no|yes) ;; #(
+  *)
+
+cat >>confdefs.h <<_ACEOF
+#define int16_t $ac_cv_c_int16_t
+_ACEOF
+;;
+esac
+
+ac_fn_c_find_intX_t "$LINENO" "32" "ac_cv_c_int32_t"
+case $ac_cv_c_int32_t in #(
+  no|yes) ;; #(
+  *)
+
+cat >>confdefs.h <<_ACEOF
+#define int32_t $ac_cv_c_int32_t
+_ACEOF
+;;
+esac
+
+ac_fn_c_find_intX_t "$LINENO" "64" "ac_cv_c_int64_t"
+case $ac_cv_c_int64_t in #(
+  no|yes) ;; #(
+  *)
+
+cat >>confdefs.h <<_ACEOF
+#define int64_t $ac_cv_c_int64_t
+_ACEOF
+;;
+esac
+
+ac_fn_c_find_uintX_t "$LINENO" "8" "ac_cv_c_uint8_t"
+case $ac_cv_c_uint8_t in #(
+  no|yes) ;; #(
+  *)
+
+$as_echo "#define _UINT8_T 1" >>confdefs.h
+
+
+cat >>confdefs.h <<_ACEOF
+#define uint8_t $ac_cv_c_uint8_t
+_ACEOF
+;;
+  esac
+
+ac_fn_c_find_uintX_t "$LINENO" "16" "ac_cv_c_uint16_t"
+case $ac_cv_c_uint16_t in #(
+  no|yes) ;; #(
+  *)
+
+
+cat >>confdefs.h <<_ACEOF
+#define uint16_t $ac_cv_c_uint16_t
+_ACEOF
+;;
+  esac
+
+ac_fn_c_find_uintX_t "$LINENO" "32" "ac_cv_c_uint32_t"
+case $ac_cv_c_uint32_t in #(
+  no|yes) ;; #(
+  *)
+
+$as_echo "#define _UINT32_T 1" >>confdefs.h
+
+
+cat >>confdefs.h <<_ACEOF
+#define uint32_t $ac_cv_c_uint32_t
+_ACEOF
+;;
+  esac
+
+ac_fn_c_find_uintX_t "$LINENO" "64" "ac_cv_c_uint64_t"
+case $ac_cv_c_uint64_t in #(
+  no|yes) ;; #(
+  *)
+
+$as_echo "#define _UINT64_T 1" >>confdefs.h
+
+
+cat >>confdefs.h <<_ACEOF
+#define uint64_t $ac_cv_c_uint64_t
+_ACEOF
+;;
+  esac
+
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking return type of signal handlers" >&5
+$as_echo_n "checking return type of signal handlers... " >&6; }
+if ${ac_cv_type_signal+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <sys/types.h>
+#include <signal.h>
+
+int
+main ()
+{
+return *(signal (0, 0)) (0) == 1;
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_c_try_compile "$LINENO"; then :
+  ac_cv_type_signal=int
+else
+  ac_cv_type_signal=void
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_type_signal" >&5
+$as_echo "$ac_cv_type_signal" >&6; }
+
+cat >>confdefs.h <<_ACEOF
+#define RETSIGTYPE $ac_cv_type_signal
+_ACEOF
+
+
+		{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for ISO C 1999 vararg macro support" >&5
+$as_echo_n "checking for ISO C 1999 vararg macro support... " >&6; }
+if ${ax_cv_cpp_vararg_macro_iso+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+#define macro(a, ...) func(a, __VA_ARGS__)
+int func(int a, int b, int c);
+
+int
+main ()
+{
+
+int i = macro(1, 2, 3);
+
+
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_c_try_compile "$LINENO"; then :
+  ax_cv_cpp_vararg_macro_iso=yes
+else
+  ax_cv_cpp_vararg_macro_iso=no
+
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ax_cv_cpp_vararg_macro_iso" >&5
+$as_echo "$ax_cv_cpp_vararg_macro_iso" >&6; }
+	if test "x$ax_cv_cpp_vararg_macro_iso" = xyes; then :
+
+$as_echo "#define HAVE_CPP_VARARG_MACRO_ISO 1" >>confdefs.h
+
+
+fi
+		{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for GNU GCC vararg macro support" >&5
+$as_echo_n "checking for GNU GCC vararg macro support... " >&6; }
+if ${ax_cv_cpp_vararg_macro_gcc+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+#define macro(a, b...) func(a, b)
+int func(int a, int b, int c);
+
+int
+main ()
+{
+
+int i = macro(1, 2, 3);
+
+
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_c_try_compile "$LINENO"; then :
+  ax_cv_cpp_vararg_macro_gcc=yes
+else
+  ax_cv_cpp_vararg_macro_gcc=no
+
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ax_cv_cpp_vararg_macro_gcc" >&5
+$as_echo "$ax_cv_cpp_vararg_macro_gcc" >&6; }
+	if test "x$ax_cv_cpp_vararg_macro_gcc" = xyes; then :
+
+$as_echo "#define HAVE_CPP_VARARG_MACRO_GCC 1" >>confdefs.h
+
+
+fi
+
+	ac_fn_c_check_type "$LINENO" "socklen_t" "ac_cv_type_socklen_t" "
+#include <sys/types.h>
+#ifdef _WIN32
+#include <ws2tcpip.h>
+#else
+#include <sys/socket.h>
+#endif
+
+
+"
+if test "x$ac_cv_type_socklen_t" = xyes; then :
+
+else
+
+						{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for socklen_t equivalent" >&5
+$as_echo_n "checking for socklen_t equivalent... " >&6; }
+if ${ax_cv_socklen_t_equiv+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+
+					#AS_CASE is not supported on <autoconf-2.60
+					case "${host}" in
+					*-mingw*) ax_cv_socklen_t_equiv=int ;;
+					*)
+						# Systems have either "struct sockaddr *" or
+						# "void *" as the second argument to getpeername
+						for arg2 in "struct sockaddr" void; do
+							for t in int size_t unsigned long "unsigned long"; do
+								cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+#include <sys/types.h>
+#include <sys/socket.h>
+int getpeername (int, $arg2 *, $t *);
+
+int
+main ()
+{
+
+$t len;
+getpeername(0,0,&len);
+
+
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_c_try_compile "$LINENO"; then :
+  ax_cv_socklen_t_equiv="$t"; break
+
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+							done
+							test -n "$ax_cv_socklen_t_equiv" && break
+						done
+						;;
+					esac
+
+				if ${ax_cv_socklen_t_equiv:+false} :; then :
+  as_fn_error $? "Cannot find a type to use in place of socklen_t" "$LINENO" 5
+else
+
+cat >>confdefs.h <<_ACEOF
+#define socklen_t $ax_cv_socklen_t_equiv
+_ACEOF
+
+
+fi
+
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ax_cv_socklen_t_equiv" >&5
+$as_echo "$ax_cv_socklen_t_equiv" >&6; }
+
+fi
+
+
+
+		{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for C compiler empty array size" >&5
+$as_echo_n "checking for C compiler empty array size... " >&6; }
+if ${ax_cv_c_empty_array+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+int
+main ()
+{
+
+struct { int foo; int bar[0]; } mystruct;
+
+
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_c_try_compile "$LINENO"; then :
+  ax_cv_c_empty_array=0
+else
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+int
+main ()
+{
+
+struct { int foo; int bar[]; } mystruct;
+
+
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_c_try_compile "$LINENO"; then :
+  ax_cv_c_empty_array=
+else
+  as_fn_error $? "C compiler is unable to creaty empty arrays" "$LINENO" 5
+
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ax_cv_c_empty_array" >&5
+$as_echo "$ax_cv_c_empty_array" >&6; }
+cat >>confdefs.h <<_ACEOF
+#define EMPTY_ARRAY_SIZE $ax_cv_c_empty_array
+_ACEOF
+
+# The cast to long int works around a bug in the HP C Compiler
+# version HP92453-01 B.11.11.23709.GP, which incorrectly rejects
+# declarations like `int a3[[(sizeof (unsigned char)) >= 0]];'.
+# This bug is HP SR number 8606223364.
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking size of unsigned int" >&5
+$as_echo_n "checking size of unsigned int... " >&6; }
+if ${ac_cv_sizeof_unsigned_int+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  if ac_fn_c_compute_int "$LINENO" "(long int) (sizeof (unsigned int))" "ac_cv_sizeof_unsigned_int"        "$ac_includes_default"; then :
+
+else
+  if test "$ac_cv_type_unsigned_int" = yes; then
+     { { $as_echo "$as_me:${as_lineno-$LINENO}: error: in \`$ac_pwd':" >&5
+$as_echo "$as_me: error: in \`$ac_pwd':" >&2;}
+as_fn_error 77 "cannot compute sizeof (unsigned int)
+See \`config.log' for more details" "$LINENO" 5; }
+   else
+     ac_cv_sizeof_unsigned_int=0
+   fi
+fi
+
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_sizeof_unsigned_int" >&5
+$as_echo "$ac_cv_sizeof_unsigned_int" >&6; }
+
+
+
+cat >>confdefs.h <<_ACEOF
+#define SIZEOF_UNSIGNED_INT $ac_cv_sizeof_unsigned_int
+_ACEOF
+
+
+# The cast to long int works around a bug in the HP C Compiler
+# version HP92453-01 B.11.11.23709.GP, which incorrectly rejects
+# declarations like `int a3[[(sizeof (unsigned char)) >= 0]];'.
+# This bug is HP SR number 8606223364.
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking size of unsigned long" >&5
+$as_echo_n "checking size of unsigned long... " >&6; }
+if ${ac_cv_sizeof_unsigned_long+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  if ac_fn_c_compute_int "$LINENO" "(long int) (sizeof (unsigned long))" "ac_cv_sizeof_unsigned_long"        "$ac_includes_default"; then :
+
+else
+  if test "$ac_cv_type_unsigned_long" = yes; then
+     { { $as_echo "$as_me:${as_lineno-$LINENO}: error: in \`$ac_pwd':" >&5
+$as_echo "$as_me: error: in \`$ac_pwd':" >&2;}
+as_fn_error 77 "cannot compute sizeof (unsigned long)
+See \`config.log' for more details" "$LINENO" 5; }
+   else
+     ac_cv_sizeof_unsigned_long=0
+   fi
+fi
+
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_sizeof_unsigned_long" >&5
+$as_echo "$ac_cv_sizeof_unsigned_long" >&6; }
+
+
+
+cat >>confdefs.h <<_ACEOF
+#define SIZEOF_UNSIGNED_LONG $ac_cv_sizeof_unsigned_long
+_ACEOF
+
+
+for ac_header in  \
+	stdio.h stdarg.h limits.h \
+	time.h errno.h fcntl.h io.h direct.h \
+	ctype.h sys/types.h sys/socket.h \
+	signal.h unistd.h dlfcn.h \
+	netinet/in.h netinet/in_systm.h \
+	netinet/tcp.h arpa/inet.h netdb.h \
+	windows.h winsock2.h ws2tcpip.h \
+	versionhelpers.h \
+
+do :
+  as_ac_Header=`$as_echo "ac_cv_header_$ac_header" | $as_tr_sh`
+ac_fn_c_check_header_mongrel "$LINENO" "$ac_header" "$as_ac_Header" "$ac_includes_default"
+if eval test \"x\$"$as_ac_Header"\" = x"yes"; then :
+  cat >>confdefs.h <<_ACEOF
+#define `$as_echo "HAVE_$ac_header" | $as_tr_cpp` 1
+_ACEOF
+
+fi
+
+done
+
+for ac_header in  \
+	sys/time.h sys/ioctl.h sys/stat.h \
+	sys/mman.h sys/file.h sys/wait.h \
+	unistd.h signal.h libgen.h stropts.h \
+	syslog.h pwd.h grp.h \
+	sys/sockio.h sys/uio.h linux/sockios.h \
+	linux/types.h poll.h sys/epoll.h err.h \
+
+do :
+  as_ac_Header=`$as_echo "ac_cv_header_$ac_header" | $as_tr_sh`
+ac_fn_c_check_header_mongrel "$LINENO" "$ac_header" "$as_ac_Header" "$ac_includes_default"
+if eval test \"x\$"$as_ac_Header"\" = x"yes"; then :
+  cat >>confdefs.h <<_ACEOF
+#define `$as_echo "HAVE_$ac_header" | $as_tr_cpp` 1
+_ACEOF
+
+fi
+
+done
+
+
+SOCKET_INCLUDES="
+#ifdef HAVE_STDLIB_H
+#include <stdlib.h>
+#endif
+#ifdef HAVE_SYS_TYPES_H
+#include <sys/types.h>
+#endif
+#ifdef HAVE_SYS_SOCKET_H
+#include <sys/socket.h>
+#endif
+#ifdef HAVE_NET_IF_H
+#include <net/if.h>
+#endif
+#ifdef HAVE_NETINET_IN_H
+#include <netinet/in.h>
+#endif
+#ifdef HAVE_WINDOWS_H
+#include <windows.h>
+#endif
+#ifdef HAVE_WINSOCK2_H
+#include <winsock2.h>
+#endif
+#ifdef HAVE_WS2TCPIP_H
+#include <ws2tcpip.h>
+#endif
+#ifdef HAVE_NETINET_IN_SYSTM_H
+#include <netinet/in_systm.h>
+#endif
+#ifdef HAVE_NETINET_IP_H
+#include <netinet/ip.h>
+#endif
+"
+
+for ac_header in net/if.h netinet/ip.h resolv.h sys/un.h net/if_utun.h sys/kern_control.h
+do :
+  as_ac_Header=`$as_echo "ac_cv_header_$ac_header" | $as_tr_sh`
+ac_fn_c_check_header_compile "$LINENO" "$ac_header" "$as_ac_Header" "${SOCKET_INCLUDES}
+
+"
+if eval test \"x\$"$as_ac_Header"\" = x"yes"; then :
+  cat >>confdefs.h <<_ACEOF
+#define `$as_echo "HAVE_$ac_header" | $as_tr_cpp` 1
+_ACEOF
+
+fi
+
+done
+
+
+ac_fn_c_check_type "$LINENO" "in_addr_t" "ac_cv_type_in_addr_t" "${SOCKET_INCLUDES}
+
+"
+if test "x$ac_cv_type_in_addr_t" = xyes; then :
+
+cat >>confdefs.h <<_ACEOF
+#define HAVE_IN_ADDR_T 1
+_ACEOF
+
+
+else
+
+$as_echo "#define in_addr_t uint32_t" >>confdefs.h
+
+fi
+
+ac_fn_c_check_type "$LINENO" "in_port_t" "ac_cv_type_in_port_t" "${SOCKET_INCLUDES}
+
+"
+if test "x$ac_cv_type_in_port_t" = xyes; then :
+
+cat >>confdefs.h <<_ACEOF
+#define HAVE_IN_PORT_T 1
+_ACEOF
+
+
+else
+
+$as_echo "#define in_port_t uint16_t" >>confdefs.h
+
+fi
+
+ac_fn_c_check_type "$LINENO" "struct iphdr" "ac_cv_type_struct_iphdr" "${SOCKET_INCLUDES}
+
+"
+if test "x$ac_cv_type_struct_iphdr" = xyes; then :
+
+$as_echo "#define HAVE_IPHDR 1" >>confdefs.h
+
+fi
+
+ac_fn_c_check_type "$LINENO" "struct sock_extended_err" "ac_cv_type_struct_sock_extended_err" "${SOCKET_INCLUDES}
+
+"
+if test "x$ac_cv_type_struct_sock_extended_err" = xyes; then :
+
+$as_echo "#define HAVE_SOCK_EXTENDED_ERR 1" >>confdefs.h
+
+fi
+
+ac_fn_c_check_type "$LINENO" "struct msghdr" "ac_cv_type_struct_msghdr" "${SOCKET_INCLUDES}
+
+"
+if test "x$ac_cv_type_struct_msghdr" = xyes; then :
+
+$as_echo "#define HAVE_MSGHDR 1" >>confdefs.h
+
+fi
+
+ac_fn_c_check_type "$LINENO" "struct cmsghdr" "ac_cv_type_struct_cmsghdr" "${SOCKET_INCLUDES}
+
+"
+if test "x$ac_cv_type_struct_cmsghdr" = xyes; then :
+
+$as_echo "#define HAVE_CMSGHDR 1" >>confdefs.h
+
+fi
+
+ac_fn_c_check_type "$LINENO" "struct in_pktinfo" "ac_cv_type_struct_in_pktinfo" "${SOCKET_INCLUDES}
+
+"
+if test "x$ac_cv_type_struct_in_pktinfo" = xyes; then :
+
+$as_echo "#define HAVE_IN_PKTINFO 1" >>confdefs.h
+
+fi
+
+ac_fn_c_check_type "$LINENO" "sa_family_t" "ac_cv_type_sa_family_t" "${SOCKET_INCLUDES}
+
+"
+if test "x$ac_cv_type_sa_family_t" = xyes; then :
+
+$as_echo "#define HAVE_SA_FAMILY_T 1" >>confdefs.h
+
+fi
+
+ac_fn_c_check_member "$LINENO" "struct in_pktinfo" "ipi_spec_dst" "ac_cv_member_struct_in_pktinfo_ipi_spec_dst" "${SOCKET_INCLUDES}
+
+"
+if test "x$ac_cv_member_struct_in_pktinfo_ipi_spec_dst" = xyes; then :
+
+$as_echo "#define HAVE_IPI_SPEC_DST 1" >>confdefs.h
+
+fi
+
+ac_fn_c_check_type "$LINENO" "struct sockaddr_in6" "ac_cv_type_struct_sockaddr_in6" "${SOCKET_INCLUDES}
+
+"
+if test "x$ac_cv_type_struct_sockaddr_in6" = xyes; then :
+
+else
+  as_fn_error $? "struct sockaddr_in6 not found, needed for ipv6 transport support." "$LINENO" 5
+fi
+
+ac_fn_c_check_decl "$LINENO" "SO_MARK" "ac_cv_have_decl_SO_MARK" "${SOCKET_INCLUDES}
+
+"
+if test "x$ac_cv_have_decl_SO_MARK" = xyes; then :
+  ac_have_decl=1
+else
+  ac_have_decl=0
+fi
+
+cat >>confdefs.h <<_ACEOF
+#define HAVE_DECL_SO_MARK $ac_have_decl
+_ACEOF
+
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking anonymous union support..." >&5
+$as_echo "$as_me: checking anonymous union support..." >&6;}
+cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+			struct mystruct {
+			  union {
+			    int m1;
+			    char m2;
+			  };
+			};
+
+int
+main ()
+{
+
+			struct mystruct s;
+			s.m1 = 1; s.m2 = 2;
+
+
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_c_try_compile "$LINENO"; then :
+
+		{ $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+$as_echo "yes" >&6; }
+
+$as_echo "#define HAVE_ANONYMOUS_UNION_SUPPORT /**/" >>confdefs.h
+
+
+else
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+
+saved_LDFLAGS="$LDFLAGS"
+LDFLAGS="$LDFLAGS -Wl,--wrap=exit"
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking linker supports --wrap" >&5
+$as_echo_n "checking linker supports --wrap... " >&6; }
+cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+			void exit(int);
+			void __real_exit(int);
+			void __wrap_exit(int i) {
+				__real_exit(i);
+			}
+
+int
+main ()
+{
+
+			exit(0);
+
+
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_c_try_link "$LINENO"; then :
+
+		{ $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+$as_echo "yes" >&6; }
+		have_ld_wrap_support=yes
+
+else
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+fi
+rm -f core conftest.err conftest.$ac_objext \
+    conftest$ac_exeext conftest.$ac_ext
+LDFLAGS="$saved_LDFLAGS"
+
+ac_fn_c_check_decl "$LINENO" "SIGHUP" "ac_cv_have_decl_SIGHUP" "
+		#ifdef HAVE_SIGNAL_H
+		#include <signal.h>
+		#endif
+
+
+"
+if test "x$ac_cv_have_decl_SIGHUP" = xyes; then :
+  ac_have_decl=1
+else
+  ac_have_decl=0
+fi
+
+cat >>confdefs.h <<_ACEOF
+#define HAVE_DECL_SIGHUP $ac_have_decl
+_ACEOF
+if test $ac_have_decl = 1; then :
+
+else
+
+$as_echo "#define SIGHUP 1" >>confdefs.h
+
+fi
+
+ac_fn_c_check_decl "$LINENO" "SIGINT" "ac_cv_have_decl_SIGINT" "
+		#ifdef HAVE_SIGNAL_H
+		#include <signal.h>
+		#endif
+
+
+"
+if test "x$ac_cv_have_decl_SIGINT" = xyes; then :
+  ac_have_decl=1
+else
+  ac_have_decl=0
+fi
+
+cat >>confdefs.h <<_ACEOF
+#define HAVE_DECL_SIGINT $ac_have_decl
+_ACEOF
+if test $ac_have_decl = 1; then :
+
+else
+
+$as_echo "#define SIGINT 2" >>confdefs.h
+
+fi
+
+ac_fn_c_check_decl "$LINENO" "SIGUSR1" "ac_cv_have_decl_SIGUSR1" "
+		#ifdef HAVE_SIGNAL_H
+		#include <signal.h>
+		#endif
+
+
+"
+if test "x$ac_cv_have_decl_SIGUSR1" = xyes; then :
+  ac_have_decl=1
+else
+  ac_have_decl=0
+fi
+
+cat >>confdefs.h <<_ACEOF
+#define HAVE_DECL_SIGUSR1 $ac_have_decl
+_ACEOF
+if test $ac_have_decl = 1; then :
+
+else
+
+$as_echo "#define SIGUSR1 10" >>confdefs.h
+
+fi
+
+ac_fn_c_check_decl "$LINENO" "SIGUSR2" "ac_cv_have_decl_SIGUSR2" "
+		#ifdef HAVE_SIGNAL_H
+		#include <signal.h>
+		#endif
+
+
+"
+if test "x$ac_cv_have_decl_SIGUSR2" = xyes; then :
+  ac_have_decl=1
+else
+  ac_have_decl=0
+fi
+
+cat >>confdefs.h <<_ACEOF
+#define HAVE_DECL_SIGUSR2 $ac_have_decl
+_ACEOF
+if test $ac_have_decl = 1; then :
+
+else
+
+$as_echo "#define SIGUSR2 12" >>confdefs.h
+
+fi
+
+ac_fn_c_check_decl "$LINENO" "SIGTERM" "ac_cv_have_decl_SIGTERM" "
+		#ifdef HAVE_SIGNAL_H
+		#include <signal.h>
+		#endif
+
+
+"
+if test "x$ac_cv_have_decl_SIGTERM" = xyes; then :
+  ac_have_decl=1
+else
+  ac_have_decl=0
+fi
+
+cat >>confdefs.h <<_ACEOF
+#define HAVE_DECL_SIGTERM $ac_have_decl
+_ACEOF
+if test $ac_have_decl = 1; then :
+
+else
+
+$as_echo "#define SIGTERM 15" >>confdefs.h
+
+fi
+
+
+for ac_header in vfork.h
+do :
+  ac_fn_c_check_header_mongrel "$LINENO" "vfork.h" "ac_cv_header_vfork_h" "$ac_includes_default"
+if test "x$ac_cv_header_vfork_h" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+#define HAVE_VFORK_H 1
+_ACEOF
+
+fi
+
+done
+
+for ac_func in fork vfork
+do :
+  as_ac_var=`$as_echo "ac_cv_func_$ac_func" | $as_tr_sh`
+ac_fn_c_check_func "$LINENO" "$ac_func" "$as_ac_var"
+if eval test \"x\$"$as_ac_var"\" = x"yes"; then :
+  cat >>confdefs.h <<_ACEOF
+#define `$as_echo "HAVE_$ac_func" | $as_tr_cpp` 1
+_ACEOF
+
+fi
+done
+
+if test "x$ac_cv_func_fork" = xyes; then
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for working fork" >&5
+$as_echo_n "checking for working fork... " >&6; }
+if ${ac_cv_func_fork_works+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  if test "$cross_compiling" = yes; then :
+  ac_cv_func_fork_works=cross
+else
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+$ac_includes_default
+int
+main ()
+{
+
+	  /* By Ruediger Kuhlmann. */
+	  return fork () < 0;
+
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_c_try_run "$LINENO"; then :
+  ac_cv_func_fork_works=yes
+else
+  ac_cv_func_fork_works=no
+fi
+rm -f core *.core core.conftest.* gmon.out bb.out conftest$ac_exeext \
+  conftest.$ac_objext conftest.beam conftest.$ac_ext
+fi
+
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_func_fork_works" >&5
+$as_echo "$ac_cv_func_fork_works" >&6; }
+
+else
+  ac_cv_func_fork_works=$ac_cv_func_fork
+fi
+if test "x$ac_cv_func_fork_works" = xcross; then
+  case $host in
+    *-*-amigaos* | *-*-msdosdjgpp*)
+      # Override, as these systems have only a dummy fork() stub
+      ac_cv_func_fork_works=no
+      ;;
+    *)
+      ac_cv_func_fork_works=yes
+      ;;
+  esac
+  { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: result $ac_cv_func_fork_works guessed because of cross compilation" >&5
+$as_echo "$as_me: WARNING: result $ac_cv_func_fork_works guessed because of cross compilation" >&2;}
+fi
+ac_cv_func_vfork_works=$ac_cv_func_vfork
+if test "x$ac_cv_func_vfork" = xyes; then
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for working vfork" >&5
+$as_echo_n "checking for working vfork... " >&6; }
+if ${ac_cv_func_vfork_works+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  if test "$cross_compiling" = yes; then :
+  ac_cv_func_vfork_works=cross
+else
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+/* Thanks to Paul Eggert for this test.  */
+$ac_includes_default
+#include <sys/wait.h>
+#ifdef HAVE_VFORK_H
+# include <vfork.h>
+#endif
+/* On some sparc systems, changes by the child to local and incoming
+   argument registers are propagated back to the parent.  The compiler
+   is told about this with #include <vfork.h>, but some compilers
+   (e.g. gcc -O) don't grok <vfork.h>.  Test for this by using a
+   static variable whose address is put into a register that is
+   clobbered by the vfork.  */
+static void
+#ifdef __cplusplus
+sparc_address_test (int arg)
+# else
+sparc_address_test (arg) int arg;
+#endif
+{
+  static pid_t child;
+  if (!child) {
+    child = vfork ();
+    if (child < 0) {
+      perror ("vfork");
+      _exit(2);
+    }
+    if (!child) {
+      arg = getpid();
+      write(-1, "", 0);
+      _exit (arg);
+    }
+  }
+}
+
+int
+main ()
+{
+  pid_t parent = getpid ();
+  pid_t child;
+
+  sparc_address_test (0);
+
+  child = vfork ();
+
+  if (child == 0) {
+    /* Here is another test for sparc vfork register problems.  This
+       test uses lots of local variables, at least as many local
+       variables as main has allocated so far including compiler
+       temporaries.  4 locals are enough for gcc 1.40.3 on a Solaris
+       4.1.3 sparc, but we use 8 to be safe.  A buggy compiler should
+       reuse the register of parent for one of the local variables,
+       since it will think that parent can't possibly be used any more
+       in this routine.  Assigning to the local variable will thus
+       munge parent in the parent process.  */
+    pid_t
+      p = getpid(), p1 = getpid(), p2 = getpid(), p3 = getpid(),
+      p4 = getpid(), p5 = getpid(), p6 = getpid(), p7 = getpid();
+    /* Convince the compiler that p..p7 are live; otherwise, it might
+       use the same hardware register for all 8 local variables.  */
+    if (p != p1 || p != p2 || p != p3 || p != p4
+	|| p != p5 || p != p6 || p != p7)
+      _exit(1);
+
+    /* On some systems (e.g. IRIX 3.3), vfork doesn't separate parent
+       from child file descriptors.  If the child closes a descriptor
+       before it execs or exits, this munges the parent's descriptor
+       as well.  Test for this by closing stdout in the child.  */
+    _exit(close(fileno(stdout)) != 0);
+  } else {
+    int status;
+    struct stat st;
+
+    while (wait(&status) != child)
+      ;
+    return (
+	 /* Was there some problem with vforking?  */
+	 child < 0
+
+	 /* Did the child fail?  (This shouldn't happen.)  */
+	 || status
+
+	 /* Did the vfork/compiler bug occur?  */
+	 || parent != getpid()
+
+	 /* Did the file descriptor bug occur?  */
+	 || fstat(fileno(stdout), &st) != 0
+	 );
+  }
+}
+_ACEOF
+if ac_fn_c_try_run "$LINENO"; then :
+  ac_cv_func_vfork_works=yes
+else
+  ac_cv_func_vfork_works=no
+fi
+rm -f core *.core core.conftest.* gmon.out bb.out conftest$ac_exeext \
+  conftest.$ac_objext conftest.beam conftest.$ac_ext
+fi
+
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_func_vfork_works" >&5
+$as_echo "$ac_cv_func_vfork_works" >&6; }
+
+fi;
+if test "x$ac_cv_func_fork_works" = xcross; then
+  ac_cv_func_vfork_works=$ac_cv_func_vfork
+  { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: result $ac_cv_func_vfork_works guessed because of cross compilation" >&5
+$as_echo "$as_me: WARNING: result $ac_cv_func_vfork_works guessed because of cross compilation" >&2;}
+fi
+
+if test "x$ac_cv_func_vfork_works" = xyes; then
+
+$as_echo "#define HAVE_WORKING_VFORK 1" >>confdefs.h
+
+else
+
+$as_echo "#define vfork fork" >>confdefs.h
+
+fi
+if test "x$ac_cv_func_fork_works" = xyes; then
+
+$as_echo "#define HAVE_WORKING_FORK 1" >>confdefs.h
+
+fi
+
+
+for ac_func in  \
+	daemon chroot getpwnam setuid nice system getpid dup dup2 \
+	getpass syslog openlog mlockall getgrnam setgid \
+	setgroups stat flock readv writev time gettimeofday \
+	ctime memset vsnprintf strdup \
+	setsid chdir putenv getpeername unlink \
+	chsize ftruncate execve getpeereid umask basename dirname access \
+	epoll_create strsep \
+
+do :
+  as_ac_var=`$as_echo "ac_cv_func_$ac_func" | $as_tr_sh`
+ac_fn_c_check_func "$LINENO" "$ac_func" "$as_ac_var"
+if eval test \"x\$"$as_ac_var"\" = x"yes"; then :
+  cat >>confdefs.h <<_ACEOF
+#define `$as_echo "HAVE_$ac_func" | $as_tr_cpp` 1
+_ACEOF
+
+fi
+done
+
+
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for dlopen in -ldl" >&5
+$as_echo_n "checking for dlopen in -ldl... " >&6; }
+if ${ac_cv_lib_dl_dlopen+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  ac_check_lib_save_LIBS=$LIBS
+LIBS="-ldl  $LIBS"
+cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+/* Override any GCC internal prototype to avoid an error.
+   Use char because int might match the return type of a GCC
+   builtin and then its argument prototype would still apply.  */
+#ifdef __cplusplus
+extern "C"
+#endif
+char dlopen ();
+int
+main ()
+{
+return dlopen ();
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_c_try_link "$LINENO"; then :
+  ac_cv_lib_dl_dlopen=yes
+else
+  ac_cv_lib_dl_dlopen=no
+fi
+rm -f core conftest.err conftest.$ac_objext \
+    conftest$ac_exeext conftest.$ac_ext
+LIBS=$ac_check_lib_save_LIBS
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_lib_dl_dlopen" >&5
+$as_echo "$ac_cv_lib_dl_dlopen" >&6; }
+if test "x$ac_cv_lib_dl_dlopen" = xyes; then :
+  DL_LIBS="-ldl"
+
+fi
+
+
+
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for inet_ntoa in -lnsl" >&5
+$as_echo_n "checking for inet_ntoa in -lnsl... " >&6; }
+if ${ac_cv_lib_nsl_inet_ntoa+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  ac_check_lib_save_LIBS=$LIBS
+LIBS="-lnsl  $LIBS"
+cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+/* Override any GCC internal prototype to avoid an error.
+   Use char because int might match the return type of a GCC
+   builtin and then its argument prototype would still apply.  */
+#ifdef __cplusplus
+extern "C"
+#endif
+char inet_ntoa ();
+int
+main ()
+{
+return inet_ntoa ();
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_c_try_link "$LINENO"; then :
+  ac_cv_lib_nsl_inet_ntoa=yes
+else
+  ac_cv_lib_nsl_inet_ntoa=no
+fi
+rm -f core conftest.err conftest.$ac_objext \
+    conftest$ac_exeext conftest.$ac_ext
+LIBS=$ac_check_lib_save_LIBS
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_lib_nsl_inet_ntoa" >&5
+$as_echo "$ac_cv_lib_nsl_inet_ntoa" >&6; }
+if test "x$ac_cv_lib_nsl_inet_ntoa" = xyes; then :
+  SOCKETS_LIBS="${SOCKETS_LIBS} -lnsl"
+
+fi
+
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for socket in -lsocket" >&5
+$as_echo_n "checking for socket in -lsocket... " >&6; }
+if ${ac_cv_lib_socket_socket+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  ac_check_lib_save_LIBS=$LIBS
+LIBS="-lsocket  $LIBS"
+cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+/* Override any GCC internal prototype to avoid an error.
+   Use char because int might match the return type of a GCC
+   builtin and then its argument prototype would still apply.  */
+#ifdef __cplusplus
+extern "C"
+#endif
+char socket ();
+int
+main ()
+{
+return socket ();
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_c_try_link "$LINENO"; then :
+  ac_cv_lib_socket_socket=yes
+else
+  ac_cv_lib_socket_socket=no
+fi
+rm -f core conftest.err conftest.$ac_objext \
+    conftest$ac_exeext conftest.$ac_ext
+LIBS=$ac_check_lib_save_LIBS
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_lib_socket_socket" >&5
+$as_echo "$ac_cv_lib_socket_socket" >&6; }
+if test "x$ac_cv_lib_socket_socket" = xyes; then :
+  SOCKETS_LIBS="${SOCKETS_LIBS} -lsocket"
+
+fi
+
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for gethostbyname in -lresolv" >&5
+$as_echo_n "checking for gethostbyname in -lresolv... " >&6; }
+if ${ac_cv_lib_resolv_gethostbyname+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  ac_check_lib_save_LIBS=$LIBS
+LIBS="-lresolv  $LIBS"
+cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+/* Override any GCC internal prototype to avoid an error.
+   Use char because int might match the return type of a GCC
+   builtin and then its argument prototype would still apply.  */
+#ifdef __cplusplus
+extern "C"
+#endif
+char gethostbyname ();
+int
+main ()
+{
+return gethostbyname ();
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_c_try_link "$LINENO"; then :
+  ac_cv_lib_resolv_gethostbyname=yes
+else
+  ac_cv_lib_resolv_gethostbyname=no
+fi
+rm -f core conftest.err conftest.$ac_objext \
+    conftest$ac_exeext conftest.$ac_ext
+LIBS=$ac_check_lib_save_LIBS
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_lib_resolv_gethostbyname" >&5
+$as_echo "$ac_cv_lib_resolv_gethostbyname" >&6; }
+if test "x$ac_cv_lib_resolv_gethostbyname" = xyes; then :
+  SOCKETS_LIBS="${SOCKETS_LIBS} -lresolv"
+
+fi
+
+
+
+old_LIBS="${LIBS}"
+LIBS="${LIBS} ${SOCKETS_LIBS}"
+for ac_func in sendmsg recvmsg
+do :
+  as_ac_var=`$as_echo "ac_cv_func_$ac_func" | $as_tr_sh`
+ac_fn_c_check_func "$LINENO" "$ac_func" "$as_ac_var"
+if eval test \"x\$"$as_ac_var"\" = x"yes"; then :
+  cat >>confdefs.h <<_ACEOF
+#define `$as_echo "HAVE_$ac_func" | $as_tr_cpp` 1
+_ACEOF
+
+fi
+done
+
+# Windows use stdcall for winsock so we cannot auto detect these
+
+
+if test "${WIN32}" = "yes"; then
+# normal autoconf function checking does not find inet_ntop/inet_pton
+# because they need to include the actual header file and link ws2_32.dll
+	LIBS="${LIBS} -lws2_32"
+	{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for MinGW inet_ntop()/inet_pton()" >&5
+$as_echo_n "checking for MinGW inet_ntop()/inet_pton()... " >&6; }
+	cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+#include <ws2tcpip.h>
+
+int
+main ()
+{
+
+int r = (int) inet_ntop (0, NULL, NULL, 0);
+    r += inet_pton(AF_INET, NULL, NULL);
+return r;
+
+
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_c_try_link "$LINENO"; then :
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: OK" >&5
+$as_echo "OK" >&6; }
+
+$as_echo "#define HAVE_INET_NTOP 1" >>confdefs.h
+
+
+$as_echo "#define HAVE_INET_PTON 1" >>confdefs.h
+
+
+else
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: not found" >&5
+$as_echo "not found" >&6; }
+
+fi
+rm -f core conftest.err conftest.$ac_objext \
+    conftest$ac_exeext conftest.$ac_ext
+
+
+$as_echo "#define HAVE_SOCKET 1" >>confdefs.h
+
+
+
+$as_echo "#define HAVE_RECV 1" >>confdefs.h
+
+
+
+$as_echo "#define HAVE_RECVFROM 1" >>confdefs.h
+
+
+
+$as_echo "#define HAVE_SEND 1" >>confdefs.h
+
+
+
+$as_echo "#define HAVE_SENDTO 1" >>confdefs.h
+
+
+
+$as_echo "#define HAVE_LISTEN 1" >>confdefs.h
+
+
+
+$as_echo "#define HAVE_ACCEPT 1" >>confdefs.h
+
+
+
+$as_echo "#define HAVE_CONNECT 1" >>confdefs.h
+
+
+
+$as_echo "#define HAVE_BIND 1" >>confdefs.h
+
+
+
+$as_echo "#define HAVE_SELECT 1" >>confdefs.h
+
+
+
+$as_echo "#define HAVE_GETHOSTBYNAME 1" >>confdefs.h
+
+
+
+$as_echo "#define HAVE_INET_NTOA 1" >>confdefs.h
+
+
+
+$as_echo "#define HAVE_SETSOCKOPT 1" >>confdefs.h
+
+
+
+$as_echo "#define HAVE_GETSOCKOPT 1" >>confdefs.h
+
+
+
+$as_echo "#define HAVE_GETSOCKNAME 1" >>confdefs.h
+
+
+
+$as_echo "#define HAVE_POLL 1" >>confdefs.h
+
+
+else
+	for ac_func in inet_ntop inet_pton
+do :
+  as_ac_var=`$as_echo "ac_cv_func_$ac_func" | $as_tr_sh`
+ac_fn_c_check_func "$LINENO" "$ac_func" "$as_ac_var"
+if eval test \"x\$"$as_ac_var"\" = x"yes"; then :
+  cat >>confdefs.h <<_ACEOF
+#define `$as_echo "HAVE_$ac_func" | $as_tr_cpp` 1
+_ACEOF
+
+fi
+done
+
+	for ac_func in socket recv recvfrom send sendto listen accept connect bind select gethostbyname inet_ntoa
+do :
+  as_ac_var=`$as_echo "ac_cv_func_$ac_func" | $as_tr_sh`
+ac_fn_c_check_func "$LINENO" "$ac_func" "$as_ac_var"
+if eval test \"x\$"$as_ac_var"\" = x"yes"; then :
+  cat >>confdefs.h <<_ACEOF
+#define `$as_echo "HAVE_$ac_func" | $as_tr_cpp` 1
+_ACEOF
+
+else
+  as_fn_error $? "Required library function not found" "$LINENO" 5
+
+fi
+done
+
+	for ac_func in setsockopt getsockopt getsockname poll
+do :
+  as_ac_var=`$as_echo "ac_cv_func_$ac_func" | $as_tr_sh`
+ac_fn_c_check_func "$LINENO" "$ac_func" "$as_ac_var"
+if eval test \"x\$"$as_ac_var"\" = x"yes"; then :
+  cat >>confdefs.h <<_ACEOF
+#define `$as_echo "HAVE_$ac_func" | $as_tr_cpp` 1
+_ACEOF
+
+fi
+done
+
+fi
+LIBS="${old_LIBS}"
+
+# we assume res_init() always exist, but need to find out *where*...
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for library containing __res_init" >&5
+$as_echo_n "checking for library containing __res_init... " >&6; }
+if ${ac_cv_search___res_init+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  ac_func_search_save_LIBS=$LIBS
+cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+/* Override any GCC internal prototype to avoid an error.
+   Use char because int might match the return type of a GCC
+   builtin and then its argument prototype would still apply.  */
+#ifdef __cplusplus
+extern "C"
+#endif
+char __res_init ();
+int
+main ()
+{
+return __res_init ();
+  ;
+  return 0;
+}
+_ACEOF
+for ac_lib in '' resolv bind; do
+  if test -z "$ac_lib"; then
+    ac_res="none required"
+  else
+    ac_res=-l$ac_lib
+    LIBS="-l$ac_lib  $ac_func_search_save_LIBS"
+  fi
+  if ac_fn_c_try_link "$LINENO"; then :
+  ac_cv_search___res_init=$ac_res
+fi
+rm -f core conftest.err conftest.$ac_objext \
+    conftest$ac_exeext
+  if ${ac_cv_search___res_init+:} false; then :
+  break
+fi
+done
+if ${ac_cv_search___res_init+:} false; then :
+
+else
+  ac_cv_search___res_init=no
+fi
+rm conftest.$ac_ext
+LIBS=$ac_func_search_save_LIBS
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_search___res_init" >&5
+$as_echo "$ac_cv_search___res_init" >&6; }
+ac_res=$ac_cv_search___res_init
+if test "$ac_res" != no; then :
+  test "$ac_res" = "none required" || LIBS="$ac_res $LIBS"
+
+else
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for library containing res_9_init" >&5
+$as_echo_n "checking for library containing res_9_init... " >&6; }
+if ${ac_cv_search_res_9_init+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  ac_func_search_save_LIBS=$LIBS
+cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+/* Override any GCC internal prototype to avoid an error.
+   Use char because int might match the return type of a GCC
+   builtin and then its argument prototype would still apply.  */
+#ifdef __cplusplus
+extern "C"
+#endif
+char res_9_init ();
+int
+main ()
+{
+return res_9_init ();
+  ;
+  return 0;
+}
+_ACEOF
+for ac_lib in '' resolv bind; do
+  if test -z "$ac_lib"; then
+    ac_res="none required"
+  else
+    ac_res=-l$ac_lib
+    LIBS="-l$ac_lib  $ac_func_search_save_LIBS"
+  fi
+  if ac_fn_c_try_link "$LINENO"; then :
+  ac_cv_search_res_9_init=$ac_res
+fi
+rm -f core conftest.err conftest.$ac_objext \
+    conftest$ac_exeext
+  if ${ac_cv_search_res_9_init+:} false; then :
+  break
+fi
+done
+if ${ac_cv_search_res_9_init+:} false; then :
+
+else
+  ac_cv_search_res_9_init=no
+fi
+rm conftest.$ac_ext
+LIBS=$ac_func_search_save_LIBS
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_search_res_9_init" >&5
+$as_echo "$ac_cv_search_res_9_init" >&6; }
+ac_res=$ac_cv_search_res_9_init
+if test "$ac_res" != no; then :
+  test "$ac_res" = "none required" || LIBS="$ac_res $LIBS"
+
+else
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for library containing res_init" >&5
+$as_echo_n "checking for library containing res_init... " >&6; }
+if ${ac_cv_search_res_init+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  ac_func_search_save_LIBS=$LIBS
+cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+/* Override any GCC internal prototype to avoid an error.
+   Use char because int might match the return type of a GCC
+   builtin and then its argument prototype would still apply.  */
+#ifdef __cplusplus
+extern "C"
+#endif
+char res_init ();
+int
+main ()
+{
+return res_init ();
+  ;
+  return 0;
+}
+_ACEOF
+for ac_lib in '' resolv bind; do
+  if test -z "$ac_lib"; then
+    ac_res="none required"
+  else
+    ac_res=-l$ac_lib
+    LIBS="-l$ac_lib  $ac_func_search_save_LIBS"
+  fi
+  if ac_fn_c_try_link "$LINENO"; then :
+  ac_cv_search_res_init=$ac_res
+fi
+rm -f core conftest.err conftest.$ac_objext \
+    conftest$ac_exeext
+  if ${ac_cv_search_res_init+:} false; then :
+  break
+fi
+done
+if ${ac_cv_search_res_init+:} false; then :
+
+else
+  ac_cv_search_res_init=no
+fi
+rm conftest.$ac_ext
+LIBS=$ac_func_search_save_LIBS
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_search_res_init" >&5
+$as_echo "$ac_cv_search_res_init" >&6; }
+ac_res=$ac_cv_search_res_init
+if test "$ac_res" != no; then :
+  test "$ac_res" = "none required" || LIBS="$ac_res $LIBS"
+
+fi
+
+fi
+
+fi
+
+
+
+old_CFLAGS="${CFLAGS}"
+CFLAGS="${CFLAGS} ${TAP_CFLAGS}"
+for ac_header in  \
+		net/if_tun.h net/tun/if_tun.h \
+		linux/if_tun.h \
+		tap-windows.h \
+
+do :
+  as_ac_Header=`$as_echo "ac_cv_header_$ac_header" | $as_tr_sh`
+ac_fn_c_check_header_mongrel "$LINENO" "$ac_header" "$as_ac_Header" "$ac_includes_default"
+if eval test \"x\$"$as_ac_Header"\" = x"yes"; then :
+  cat >>confdefs.h <<_ACEOF
+#define `$as_echo "HAVE_$ac_header" | $as_tr_cpp` 1
+_ACEOF
+ have_tap_header="yes"
+
+fi
+
+done
+
+ac_fn_c_check_decl "$LINENO" "TUNSETPERSIST" "ac_cv_have_decl_TUNSETPERSIST" "
+		#ifdef HAVE_LINUX_IF_TUN_H
+		#include <linux/if_tun.h>
+		#endif
+
+
+"
+if test "x$ac_cv_have_decl_TUNSETPERSIST" = xyes; then :
+  ac_have_decl=1
+else
+  ac_have_decl=0
+fi
+
+cat >>confdefs.h <<_ACEOF
+#define HAVE_DECL_TUNSETPERSIST $ac_have_decl
+_ACEOF
+if test $ac_have_decl = 1; then :
+
+$as_echo "#define ENABLE_FEATURE_TUN_PERSIST 1" >>confdefs.h
+
+fi
+
+CFLAGS="${old_CFLAGS}"
+test "${have_tap_header}" = "yes" || as_fn_error $? "no tap header could be found" "$LINENO" 5
+
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for setcon in -lselinux" >&5
+$as_echo_n "checking for setcon in -lselinux... " >&6; }
+if ${ac_cv_lib_selinux_setcon+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  ac_check_lib_save_LIBS=$LIBS
+LIBS="-lselinux  $LIBS"
+cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+/* Override any GCC internal prototype to avoid an error.
+   Use char because int might match the return type of a GCC
+   builtin and then its argument prototype would still apply.  */
+#ifdef __cplusplus
+extern "C"
+#endif
+char setcon ();
+int
+main ()
+{
+return setcon ();
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_c_try_link "$LINENO"; then :
+  ac_cv_lib_selinux_setcon=yes
+else
+  ac_cv_lib_selinux_setcon=no
+fi
+rm -f core conftest.err conftest.$ac_objext \
+    conftest$ac_exeext conftest.$ac_ext
+LIBS=$ac_check_lib_save_LIBS
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_lib_selinux_setcon" >&5
+$as_echo "$ac_cv_lib_selinux_setcon" >&6; }
+if test "x$ac_cv_lib_selinux_setcon" = xyes; then :
+  SELINUX_LIBS="-lselinux"
+
+fi
+
+
+
+
+
+if test -z "${LIBPAM_LIBS}"; then
+	{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for pam_start in -lpam" >&5
+$as_echo_n "checking for pam_start in -lpam... " >&6; }
+if ${ac_cv_lib_pam_pam_start+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  ac_check_lib_save_LIBS=$LIBS
+LIBS="-lpam  $LIBS"
+cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+/* Override any GCC internal prototype to avoid an error.
+   Use char because int might match the return type of a GCC
+   builtin and then its argument prototype would still apply.  */
+#ifdef __cplusplus
+extern "C"
+#endif
+char pam_start ();
+int
+main ()
+{
+return pam_start ();
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_c_try_link "$LINENO"; then :
+  ac_cv_lib_pam_pam_start=yes
+else
+  ac_cv_lib_pam_pam_start=no
+fi
+rm -f core conftest.err conftest.$ac_objext \
+    conftest$ac_exeext conftest.$ac_ext
+LIBS=$ac_check_lib_save_LIBS
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_lib_pam_pam_start" >&5
+$as_echo "$ac_cv_lib_pam_pam_start" >&6; }
+if test "x$ac_cv_lib_pam_pam_start" = xyes; then :
+  LIBPAM_LIBS="-lpam"
+
+fi
+
+fi
+
+case "${with_mem_check}" in
+	valgrind)
+		for ac_header in valgrind/memcheck.h
+do :
+  ac_fn_c_check_header_mongrel "$LINENO" "valgrind/memcheck.h" "ac_cv_header_valgrind_memcheck_h" "$ac_includes_default"
+if test "x$ac_cv_header_valgrind_memcheck_h" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+#define HAVE_VALGRIND_MEMCHECK_H 1
+_ACEOF
+
+				CFLAGS="${CFLAGS} -g -fno-inline"
+
+$as_echo "#define USE_VALGRIND 1" >>confdefs.h
+
+
+else
+  as_fn_error $? "valgrind headers not found." "$LINENO" 5
+
+fi
+
+done
+
+		;;
+	dmalloc)
+		for ac_header in dmalloc.h
+do :
+  ac_fn_c_check_header_mongrel "$LINENO" "dmalloc.h" "ac_cv_header_dmalloc_h" "$ac_includes_default"
+if test "x$ac_cv_header_dmalloc_h" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+#define HAVE_DMALLOC_H 1
+_ACEOF
+ { $as_echo "$as_me:${as_lineno-$LINENO}: checking for malloc in -ldmalloc" >&5
+$as_echo_n "checking for malloc in -ldmalloc... " >&6; }
+if ${ac_cv_lib_dmalloc_malloc+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  ac_check_lib_save_LIBS=$LIBS
+LIBS="-ldmalloc  $LIBS"
+cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+/* Override any GCC internal prototype to avoid an error.
+   Use char because int might match the return type of a GCC
+   builtin and then its argument prototype would still apply.  */
+#ifdef __cplusplus
+extern "C"
+#endif
+char malloc ();
+int
+main ()
+{
+return malloc ();
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_c_try_link "$LINENO"; then :
+  ac_cv_lib_dmalloc_malloc=yes
+else
+  ac_cv_lib_dmalloc_malloc=no
+fi
+rm -f core conftest.err conftest.$ac_objext \
+    conftest$ac_exeext conftest.$ac_ext
+LIBS=$ac_check_lib_save_LIBS
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_lib_dmalloc_malloc" >&5
+$as_echo "$ac_cv_lib_dmalloc_malloc" >&6; }
+if test "x$ac_cv_lib_dmalloc_malloc" = xyes; then :
+
+					LIBS="${LIBS} -ldmalloc"
+
+$as_echo "#define DMALLOC 1" >>confdefs.h
+
+
+else
+  as_fn_error $? "dmalloc library not found." "$LINENO" 5
+
+fi
+
+else
+  as_fn_error $? "dmalloc headers not found." "$LINENO" 5
+
+fi
+
+done
+
+		;;
+	ssl)
+		{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for CRYPTO_mem_ctrl in -lssl" >&5
+$as_echo_n "checking for CRYPTO_mem_ctrl in -lssl... " >&6; }
+if ${ac_cv_lib_ssl_CRYPTO_mem_ctrl+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  ac_check_lib_save_LIBS=$LIBS
+LIBS="-lssl  $LIBS"
+cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+/* Override any GCC internal prototype to avoid an error.
+   Use char because int might match the return type of a GCC
+   builtin and then its argument prototype would still apply.  */
+#ifdef __cplusplus
+extern "C"
+#endif
+char CRYPTO_mem_ctrl ();
+int
+main ()
+{
+return CRYPTO_mem_ctrl ();
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_c_try_link "$LINENO"; then :
+  ac_cv_lib_ssl_CRYPTO_mem_ctrl=yes
+else
+  ac_cv_lib_ssl_CRYPTO_mem_ctrl=no
+fi
+rm -f core conftest.err conftest.$ac_objext \
+    conftest$ac_exeext conftest.$ac_ext
+LIBS=$ac_check_lib_save_LIBS
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_lib_ssl_CRYPTO_mem_ctrl" >&5
+$as_echo "$ac_cv_lib_ssl_CRYPTO_mem_ctrl" >&6; }
+if test "x$ac_cv_lib_ssl_CRYPTO_mem_ctrl" = xyes; then :
+
+
+$as_echo "#define CRYPTO_MDEBUG 1" >>confdefs.h
+
+				{ $as_echo "$as_me:${as_lineno-$LINENO}: NOTE: OpenSSL library must be compiled with CRYPTO_MDEBUG" >&5
+$as_echo "$as_me: NOTE: OpenSSL library must be compiled with CRYPTO_MDEBUG" >&6;}
+
+else
+  as_fn_error $? "Memory Debugging function in OpenSSL library not found." "$LINENO" 5
+
+fi
+
+		;;
+esac
+
+
+pkg_failed=no
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for PKCS11_HELPER" >&5
+$as_echo_n "checking for PKCS11_HELPER... " >&6; }
+
+if test -n "$PKCS11_HELPER_CFLAGS"; then
+    pkg_cv_PKCS11_HELPER_CFLAGS="$PKCS11_HELPER_CFLAGS"
+ elif test -n "$PKG_CONFIG"; then
+    if test -n "$PKG_CONFIG" && \
+    { { $as_echo "$as_me:${as_lineno-$LINENO}: \$PKG_CONFIG --exists --print-errors \"libpkcs11-helper-1 >= 1.11\""; } >&5
+  ($PKG_CONFIG --exists --print-errors "libpkcs11-helper-1 >= 1.11") 2>&5
+  ac_status=$?
+  $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+  test $ac_status = 0; }; then
+  pkg_cv_PKCS11_HELPER_CFLAGS=`$PKG_CONFIG --cflags "libpkcs11-helper-1 >= 1.11" 2>/dev/null`
+		      test "x$?" != "x0" && pkg_failed=yes
+else
+  pkg_failed=yes
+fi
+ else
+    pkg_failed=untried
+fi
+if test -n "$PKCS11_HELPER_LIBS"; then
+    pkg_cv_PKCS11_HELPER_LIBS="$PKCS11_HELPER_LIBS"
+ elif test -n "$PKG_CONFIG"; then
+    if test -n "$PKG_CONFIG" && \
+    { { $as_echo "$as_me:${as_lineno-$LINENO}: \$PKG_CONFIG --exists --print-errors \"libpkcs11-helper-1 >= 1.11\""; } >&5
+  ($PKG_CONFIG --exists --print-errors "libpkcs11-helper-1 >= 1.11") 2>&5
+  ac_status=$?
+  $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+  test $ac_status = 0; }; then
+  pkg_cv_PKCS11_HELPER_LIBS=`$PKG_CONFIG --libs "libpkcs11-helper-1 >= 1.11" 2>/dev/null`
+		      test "x$?" != "x0" && pkg_failed=yes
+else
+  pkg_failed=yes
+fi
+ else
+    pkg_failed=untried
+fi
+
+
+
+if test $pkg_failed = yes; then
+   	{ $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+
+if $PKG_CONFIG --atleast-pkgconfig-version 0.20; then
+        _pkg_short_errors_supported=yes
+else
+        _pkg_short_errors_supported=no
+fi
+        if test $_pkg_short_errors_supported = yes; then
+	        PKCS11_HELPER_PKG_ERRORS=`$PKG_CONFIG --short-errors --print-errors --cflags --libs "libpkcs11-helper-1 >= 1.11" 2>&1`
+        else
+	        PKCS11_HELPER_PKG_ERRORS=`$PKG_CONFIG --print-errors --cflags --libs "libpkcs11-helper-1 >= 1.11" 2>&1`
+        fi
+	# Put the nasty error message in config.log where it belongs
+	echo "$PKCS11_HELPER_PKG_ERRORS" >&5
+
+
+
+elif test $pkg_failed = untried; then
+     	{ $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+
+
+else
+	PKCS11_HELPER_CFLAGS=$pkg_cv_PKCS11_HELPER_CFLAGS
+	PKCS11_HELPER_LIBS=$pkg_cv_PKCS11_HELPER_LIBS
+        { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+$as_echo "yes" >&6; }
+	have_pkcs11_helper="yes"
+fi
+
+if test "${with_crypto_library}" = "openssl"; then
+
+
+
+	if test -z "${OPENSSL_CFLAGS}" -a -z "${OPENSSL_LIBS}"; then
+		# if the user did not explicitly specify flags, try to autodetect
+
+pkg_failed=no
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for OPENSSL" >&5
+$as_echo_n "checking for OPENSSL... " >&6; }
+
+if test -n "$OPENSSL_CFLAGS"; then
+    pkg_cv_OPENSSL_CFLAGS="$OPENSSL_CFLAGS"
+ elif test -n "$PKG_CONFIG"; then
+    if test -n "$PKG_CONFIG" && \
+    { { $as_echo "$as_me:${as_lineno-$LINENO}: \$PKG_CONFIG --exists --print-errors \"openssl >= 1.0.2\""; } >&5
+  ($PKG_CONFIG --exists --print-errors "openssl >= 1.0.2") 2>&5
+  ac_status=$?
+  $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+  test $ac_status = 0; }; then
+  pkg_cv_OPENSSL_CFLAGS=`$PKG_CONFIG --cflags "openssl >= 1.0.2" 2>/dev/null`
+		      test "x$?" != "x0" && pkg_failed=yes
+else
+  pkg_failed=yes
+fi
+ else
+    pkg_failed=untried
+fi
+if test -n "$OPENSSL_LIBS"; then
+    pkg_cv_OPENSSL_LIBS="$OPENSSL_LIBS"
+ elif test -n "$PKG_CONFIG"; then
+    if test -n "$PKG_CONFIG" && \
+    { { $as_echo "$as_me:${as_lineno-$LINENO}: \$PKG_CONFIG --exists --print-errors \"openssl >= 1.0.2\""; } >&5
+  ($PKG_CONFIG --exists --print-errors "openssl >= 1.0.2") 2>&5
+  ac_status=$?
+  $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+  test $ac_status = 0; }; then
+  pkg_cv_OPENSSL_LIBS=`$PKG_CONFIG --libs "openssl >= 1.0.2" 2>/dev/null`
+		      test "x$?" != "x0" && pkg_failed=yes
+else
+  pkg_failed=yes
+fi
+ else
+    pkg_failed=untried
+fi
+
+
+
+if test $pkg_failed = yes; then
+   	{ $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+
+if $PKG_CONFIG --atleast-pkgconfig-version 0.20; then
+        _pkg_short_errors_supported=yes
+else
+        _pkg_short_errors_supported=no
+fi
+        if test $_pkg_short_errors_supported = yes; then
+	        OPENSSL_PKG_ERRORS=`$PKG_CONFIG --short-errors --print-errors --cflags --libs "openssl >= 1.0.2" 2>&1`
+        else
+	        OPENSSL_PKG_ERRORS=`$PKG_CONFIG --print-errors --cflags --libs "openssl >= 1.0.2" 2>&1`
+        fi
+	# Put the nasty error message in config.log where it belongs
+	echo "$OPENSSL_PKG_ERRORS" >&5
+
+	 # If this fails, we will do another test next
+
+elif test $pkg_failed = untried; then
+     	{ $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+	 # If this fails, we will do another test next
+
+else
+	OPENSSL_CFLAGS=$pkg_cv_OPENSSL_CFLAGS
+	OPENSSL_LIBS=$pkg_cv_OPENSSL_LIBS
+        { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+$as_echo "yes" >&6; }
+	have_openssl="yes"
+fi
+		OPENSSL_LIBS=${OPENSSL_LIBS:--lssl -lcrypto}
+	fi
+
+	saved_CFLAGS="${CFLAGS}"
+	saved_LIBS="${LIBS}"
+	CFLAGS="${CFLAGS} ${OPENSSL_CFLAGS}"
+	LIBS="${LIBS} ${OPENSSL_LIBS}"
+
+	# If pkgconfig check failed or OPENSSL_CFLAGS/OPENSSL_LIBS env vars
+	# are used, check the version directly in the OpenSSL include file
+	if test "${have_openssl}" != "yes"; then
+		{ $as_echo "$as_me:${as_lineno-$LINENO}: checking additionally if OpenSSL is available and version >= 1.0.2" >&5
+$as_echo_n "checking additionally if OpenSSL is available and version >= 1.0.2... " >&6; }
+		cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+#include <openssl/opensslv.h>
+
+int
+main ()
+{
+
+/*	     Version encoding: MNNFFPPS - see opensslv.h for details */
+#if OPENSSL_VERSION_NUMBER < 0x10002000L
+#error OpenSSL too old
+#endif
+
+
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_c_try_compile "$LINENO"; then :
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: ok" >&5
+$as_echo "ok" >&6; }
+else
+  as_fn_error $? "OpenSSL version too old" "$LINENO" 5
+
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+	fi
+
+	for ac_func in SSL_CTX_new EVP_CIPHER_CTX_set_key_length
+do :
+  as_ac_var=`$as_echo "ac_cv_func_$ac_func" | $as_tr_sh`
+ac_fn_c_check_func "$LINENO" "$ac_func" "$as_ac_var"
+if eval test \"x\$"$as_ac_var"\" = x"yes"; then :
+  cat >>confdefs.h <<_ACEOF
+#define `$as_echo "HAVE_$ac_func" | $as_tr_cpp` 1
+_ACEOF
+
+else
+  as_fn_error $? "openssl check failed" "$LINENO" 5
+
+fi
+done
+
+
+	have_openssl_engine="yes"
+	for ac_func in  \
+			ENGINE_load_builtin_engines \
+			ENGINE_register_all_complete \
+			ENGINE_cleanup \
+
+do :
+  as_ac_var=`$as_echo "ac_cv_func_$ac_func" | $as_tr_sh`
+ac_fn_c_check_func "$LINENO" "$ac_func" "$as_ac_var"
+if eval test \"x\$"$as_ac_var"\" = x"yes"; then :
+  cat >>confdefs.h <<_ACEOF
+#define `$as_echo "HAVE_$ac_func" | $as_tr_cpp` 1
+_ACEOF
+
+else
+  have_openssl_engine="no"; break
+
+fi
+done
+
+	if test "${have_openssl_engine}" = "no"; then
+		ac_fn_c_check_decl "$LINENO" "ENGINE_cleanup" "ac_cv_have_decl_ENGINE_cleanup" "
+				#include <openssl/engine.h>
+
+
+"
+if test "x$ac_cv_have_decl_ENGINE_cleanup" = xyes; then :
+  have_openssl_engine="yes"
+fi
+
+	fi
+	if test "${have_openssl_engine}" = "yes"; then
+
+$as_echo "#define HAVE_OPENSSL_ENGINE 1" >>confdefs.h
+
+	fi
+
+	ac_fn_c_check_func "$LINENO" "EVP_aes_256_gcm" "ac_cv_func_EVP_aes_256_gcm"
+if test "x$ac_cv_func_EVP_aes_256_gcm" = xyes; then :
+
+else
+  as_fn_error $? "OpenSSL check for AES-256-GCM support failed" "$LINENO" 5
+
+fi
+
+
+	# All supported OpenSSL version (>= 1.0.2)
+	# have this feature
+	have_export_keying_material="yes"
+
+	for ac_func in  \
+			HMAC_CTX_new \
+			HMAC_CTX_free \
+			HMAC_CTX_reset \
+			EVP_MD_CTX_new \
+			EVP_MD_CTX_free \
+			EVP_MD_CTX_reset \
+			EVP_CIPHER_CTX_reset \
+			OpenSSL_version \
+			SSL_CTX_get_default_passwd_cb \
+			SSL_CTX_get_default_passwd_cb_userdata \
+			SSL_CTX_set1_groups \
+			SSL_CTX_set_security_level \
+			X509_get0_notBefore \
+			X509_get0_notAfter \
+			X509_get0_pubkey \
+			X509_STORE_get0_objects \
+			X509_OBJECT_free \
+			X509_OBJECT_get_type \
+			EVP_PKEY_get0_RSA \
+			EVP_PKEY_get0_DSA \
+			EVP_PKEY_get0_EC_KEY \
+			RSA_set_flags \
+			RSA_bits \
+			RSA_get0_key \
+			RSA_set0_key \
+			DSA_get0_pqg \
+			DSA_bits \
+			RSA_meth_new \
+			RSA_meth_free \
+			RSA_meth_set_pub_enc \
+			RSA_meth_set_pub_dec \
+			RSA_meth_set_priv_enc \
+			RSA_meth_set_priv_dec \
+			RSA_meth_set_init \
+			RSA_meth_set_sign \
+			RSA_meth_set_finish \
+			RSA_meth_set0_app_data \
+			RSA_meth_get0_app_data \
+			EC_GROUP_order_bits
+
+
+do :
+  as_ac_var=`$as_echo "ac_cv_func_$ac_func" | $as_tr_sh`
+ac_fn_c_check_func "$LINENO" "$ac_func" "$as_ac_var"
+if eval test \"x\$"$as_ac_var"\" = x"yes"; then :
+  cat >>confdefs.h <<_ACEOF
+#define `$as_echo "HAVE_$ac_func" | $as_tr_cpp` 1
+_ACEOF
+
+fi
+done
+
+
+	CFLAGS="${saved_CFLAGS}"
+	LIBS="${saved_LIBS}"
+
+
+$as_echo "#define ENABLE_CRYPTO_OPENSSL 1" >>confdefs.h
+
+	CRYPTO_CFLAGS="${OPENSSL_CFLAGS}"
+	CRYPTO_LIBS="${OPENSSL_LIBS}"
+elif test "${with_crypto_library}" = "mbedtls"; then
+
+
+
+	saved_CFLAGS="${CFLAGS}"
+	saved_LIBS="${LIBS}"
+
+	if test -z "${MBEDTLS_CFLAGS}" -a -z "${MBEDTLS_LIBS}"; then
+		# if the user did not explicitly specify flags, try to autodetect
+		LIBS="${LIBS} -lmbedtls -lmbedx509 -lmbedcrypto"
+		{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for mbedtls_ssl_init in -lmbedtls" >&5
+$as_echo_n "checking for mbedtls_ssl_init in -lmbedtls... " >&6; }
+if ${ac_cv_lib_mbedtls_mbedtls_ssl_init+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  ac_check_lib_save_LIBS=$LIBS
+LIBS="-lmbedtls ${PKCS11_HELPER_LIBS}
+		 $LIBS"
+cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+/* Override any GCC internal prototype to avoid an error.
+   Use char because int might match the return type of a GCC
+   builtin and then its argument prototype would still apply.  */
+#ifdef __cplusplus
+extern "C"
+#endif
+char mbedtls_ssl_init ();
+int
+main ()
+{
+return mbedtls_ssl_init ();
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_c_try_link "$LINENO"; then :
+  ac_cv_lib_mbedtls_mbedtls_ssl_init=yes
+else
+  ac_cv_lib_mbedtls_mbedtls_ssl_init=no
+fi
+rm -f core conftest.err conftest.$ac_objext \
+    conftest$ac_exeext conftest.$ac_ext
+LIBS=$ac_check_lib_save_LIBS
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_lib_mbedtls_mbedtls_ssl_init" >&5
+$as_echo "$ac_cv_lib_mbedtls_mbedtls_ssl_init" >&6; }
+if test "x$ac_cv_lib_mbedtls_mbedtls_ssl_init" = xyes; then :
+  MBEDTLS_LIBS="-lmbedtls -lmbedx509 -lmbedcrypto"
+else
+  as_fn_error $? "Could not find mbed TLS." "$LINENO" 5
+fi
+
+	fi
+
+	CFLAGS="${MBEDTLS_CFLAGS} ${PKCS11_HELPER_CFLAGS} ${CFLAGS}"
+	LIBS="${MBEDTLS_LIBS} ${PKCS11_HELPER_LIBS} ${LIBS}"
+
+	{ $as_echo "$as_me:${as_lineno-$LINENO}: checking mbedtls version" >&5
+$as_echo_n "checking mbedtls version... " >&6; }
+	cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+#include <mbedtls/version.h>
+
+int
+main ()
+{
+
+#if MBEDTLS_VERSION_NUMBER < 0x02000000 || MBEDTLS_VERSION_NUMBER >= 0x03000000
+#error invalid version
+#endif
+
+
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_c_try_compile "$LINENO"; then :
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: ok" >&5
+$as_echo "ok" >&6; }
+else
+  as_fn_error $? "mbed TLS 2.y.z required" "$LINENO" 5
+
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+
+	for ac_func in  \
+			mbedtls_cipher_write_tag \
+			mbedtls_cipher_check_tag \
+
+do :
+  as_ac_var=`$as_echo "ac_cv_func_$ac_func" | $as_tr_sh`
+ac_fn_c_check_func "$LINENO" "$ac_func" "$as_ac_var"
+if eval test \"x\$"$as_ac_var"\" = x"yes"; then :
+  cat >>confdefs.h <<_ACEOF
+#define `$as_echo "HAVE_$ac_func" | $as_tr_cpp` 1
+_ACEOF
+
+else
+  as_fn_error $? "mbed TLS check for AEAD support failed" "$LINENO" 5
+
+fi
+done
+
+
+	have_export_keying_material="yes"
+	ac_fn_c_check_func "$LINENO" "mbedtls_ssl_conf_export_keys_ext_cb" "ac_cv_func_mbedtls_ssl_conf_export_keys_ext_cb"
+if test "x$ac_cv_func_mbedtls_ssl_conf_export_keys_ext_cb" = xyes; then :
+
+else
+  have_export_keying_material="no"
+
+fi
+
+
+	CFLAGS="${saved_CFLAGS}"
+	LIBS="${saved_LIBS}"
+
+$as_echo "#define ENABLE_CRYPTO_MBEDTLS 1" >>confdefs.h
+
+	CRYPTO_CFLAGS="${MBEDTLS_CFLAGS}"
+	CRYPTO_LIBS="${MBEDTLS_LIBS}"
+else
+	as_fn_error $? "Invalid crypto library: ${with_crypto_library}" "$LINENO" 5
+fi
+
+
+
+have_lzo="yes"
+if test -z "${LZO_LIBS}"; then
+	{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for lzo1x_1_15_compress in -llzo2" >&5
+$as_echo_n "checking for lzo1x_1_15_compress in -llzo2... " >&6; }
+if ${ac_cv_lib_lzo2_lzo1x_1_15_compress+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  ac_check_lib_save_LIBS=$LIBS
+LIBS="-llzo2  $LIBS"
+cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+/* Override any GCC internal prototype to avoid an error.
+   Use char because int might match the return type of a GCC
+   builtin and then its argument prototype would still apply.  */
+#ifdef __cplusplus
+extern "C"
+#endif
+char lzo1x_1_15_compress ();
+int
+main ()
+{
+return lzo1x_1_15_compress ();
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_c_try_link "$LINENO"; then :
+  ac_cv_lib_lzo2_lzo1x_1_15_compress=yes
+else
+  ac_cv_lib_lzo2_lzo1x_1_15_compress=no
+fi
+rm -f core conftest.err conftest.$ac_objext \
+    conftest$ac_exeext conftest.$ac_ext
+LIBS=$ac_check_lib_save_LIBS
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_lib_lzo2_lzo1x_1_15_compress" >&5
+$as_echo "$ac_cv_lib_lzo2_lzo1x_1_15_compress" >&6; }
+if test "x$ac_cv_lib_lzo2_lzo1x_1_15_compress" = xyes; then :
+  LZO_LIBS="-llzo2"
+else
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for lzo1x_1_15_compress in -llzo" >&5
+$as_echo_n "checking for lzo1x_1_15_compress in -llzo... " >&6; }
+if ${ac_cv_lib_lzo_lzo1x_1_15_compress+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  ac_check_lib_save_LIBS=$LIBS
+LIBS="-llzo  $LIBS"
+cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+/* Override any GCC internal prototype to avoid an error.
+   Use char because int might match the return type of a GCC
+   builtin and then its argument prototype would still apply.  */
+#ifdef __cplusplus
+extern "C"
+#endif
+char lzo1x_1_15_compress ();
+int
+main ()
+{
+return lzo1x_1_15_compress ();
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_c_try_link "$LINENO"; then :
+  ac_cv_lib_lzo_lzo1x_1_15_compress=yes
+else
+  ac_cv_lib_lzo_lzo1x_1_15_compress=no
+fi
+rm -f core conftest.err conftest.$ac_objext \
+    conftest$ac_exeext conftest.$ac_ext
+LIBS=$ac_check_lib_save_LIBS
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_lib_lzo_lzo1x_1_15_compress" >&5
+$as_echo "$ac_cv_lib_lzo_lzo1x_1_15_compress" >&6; }
+if test "x$ac_cv_lib_lzo_lzo1x_1_15_compress" = xyes; then :
+  LZO_LIBS="-llzo"
+else
+  have_lzo="no"
+
+fi
+
+
+fi
+
+fi
+if test "${have_lzo}" = "yes"; then
+	saved_CFLAGS="${CFLAGS}"
+	CFLAGS="${CFLAGS} ${LZO_CFLAGS}"
+	for ac_header in lzo/lzoutil.h
+do :
+  ac_fn_c_check_header_mongrel "$LINENO" "lzo/lzoutil.h" "ac_cv_header_lzo_lzoutil_h" "$ac_includes_default"
+if test "x$ac_cv_header_lzo_lzoutil_h" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+#define HAVE_LZO_LZOUTIL_H 1
+_ACEOF
+
+else
+  for ac_header in lzoutil.h
+do :
+  ac_fn_c_check_header_mongrel "$LINENO" "lzoutil.h" "ac_cv_header_lzoutil_h" "$ac_includes_default"
+if test "x$ac_cv_header_lzoutil_h" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+#define HAVE_LZOUTIL_H 1
+_ACEOF
+
+else
+  as_fn_error $? "lzoutil.h is missing" "$LINENO" 5
+
+fi
+
+done
+
+
+fi
+
+done
+
+	for ac_header in lzo/lzo1x.h
+do :
+  ac_fn_c_check_header_mongrel "$LINENO" "lzo/lzo1x.h" "ac_cv_header_lzo_lzo1x_h" "$ac_includes_default"
+if test "x$ac_cv_header_lzo_lzo1x_h" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+#define HAVE_LZO_LZO1X_H 1
+_ACEOF
+
+else
+  for ac_header in lzo1x.h
+do :
+  ac_fn_c_check_header_mongrel "$LINENO" "lzo1x.h" "ac_cv_header_lzo1x_h" "$ac_includes_default"
+if test "x$ac_cv_header_lzo1x_h" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+#define HAVE_LZO1X_H 1
+_ACEOF
+
+else
+  as_fn_error $? "lzo1x.h is missing" "$LINENO" 5
+
+fi
+
+done
+
+
+fi
+
+done
+
+	CFLAGS="${saved_CFLAGS}"
+fi
+
+
+
+
+if test "$enable_lz4" = "yes" && test "$enable_comp_stub" = "no"; then
+    if test -z "${LZ4_CFLAGS}" -a -z "${LZ4_LIBS}"; then
+	# if the user did not explicitly specify flags, try to autodetect
+
+pkg_failed=no
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for LZ4" >&5
+$as_echo_n "checking for LZ4... " >&6; }
+
+if test -n "$LZ4_CFLAGS"; then
+    pkg_cv_LZ4_CFLAGS="$LZ4_CFLAGS"
+ elif test -n "$PKG_CONFIG"; then
+    if test -n "$PKG_CONFIG" && \
+    { { $as_echo "$as_me:${as_lineno-$LINENO}: \$PKG_CONFIG --exists --print-errors \"liblz4 >= 1.7.1 liblz4 < 100\""; } >&5
+  ($PKG_CONFIG --exists --print-errors "liblz4 >= 1.7.1 liblz4 < 100") 2>&5
+  ac_status=$?
+  $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+  test $ac_status = 0; }; then
+  pkg_cv_LZ4_CFLAGS=`$PKG_CONFIG --cflags "liblz4 >= 1.7.1 liblz4 < 100" 2>/dev/null`
+		      test "x$?" != "x0" && pkg_failed=yes
+else
+  pkg_failed=yes
+fi
+ else
+    pkg_failed=untried
+fi
+if test -n "$LZ4_LIBS"; then
+    pkg_cv_LZ4_LIBS="$LZ4_LIBS"
+ elif test -n "$PKG_CONFIG"; then
+    if test -n "$PKG_CONFIG" && \
+    { { $as_echo "$as_me:${as_lineno-$LINENO}: \$PKG_CONFIG --exists --print-errors \"liblz4 >= 1.7.1 liblz4 < 100\""; } >&5
+  ($PKG_CONFIG --exists --print-errors "liblz4 >= 1.7.1 liblz4 < 100") 2>&5
+  ac_status=$?
+  $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+  test $ac_status = 0; }; then
+  pkg_cv_LZ4_LIBS=`$PKG_CONFIG --libs "liblz4 >= 1.7.1 liblz4 < 100" 2>/dev/null`
+		      test "x$?" != "x0" && pkg_failed=yes
+else
+  pkg_failed=yes
+fi
+ else
+    pkg_failed=untried
+fi
+
+
+
+if test $pkg_failed = yes; then
+   	{ $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+
+if $PKG_CONFIG --atleast-pkgconfig-version 0.20; then
+        _pkg_short_errors_supported=yes
+else
+        _pkg_short_errors_supported=no
+fi
+        if test $_pkg_short_errors_supported = yes; then
+	        LZ4_PKG_ERRORS=`$PKG_CONFIG --short-errors --print-errors --cflags --libs "liblz4 >= 1.7.1 liblz4 < 100" 2>&1`
+        else
+	        LZ4_PKG_ERRORS=`$PKG_CONFIG --print-errors --cflags --libs "liblz4 >= 1.7.1 liblz4 < 100" 2>&1`
+        fi
+	# Put the nasty error message in config.log where it belongs
+	echo "$LZ4_PKG_ERRORS" >&5
+
+	LZ4_LIBS="-llz4" # If this fails, we will do another test next.
+					     # We also add set LZ4_LIBS otherwise the
+					     # linker will not know about the lz4 library
+
+elif test $pkg_failed = untried; then
+     	{ $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+	LZ4_LIBS="-llz4" # If this fails, we will do another test next.
+					     # We also add set LZ4_LIBS otherwise the
+					     # linker will not know about the lz4 library
+
+else
+	LZ4_CFLAGS=$pkg_cv_LZ4_CFLAGS
+	LZ4_LIBS=$pkg_cv_LZ4_LIBS
+        { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+$as_echo "yes" >&6; }
+	have_lz4="yes"
+fi
+    fi
+
+    saved_CFLAGS="${CFLAGS}"
+    saved_LIBS="${LIBS}"
+    CFLAGS="${CFLAGS} ${LZ4_CFLAGS}"
+    LIBS="${LIBS} ${LZ4_LIBS}"
+
+    # If pkgconfig check failed or LZ4_CFLAGS/LZ4_LIBS env vars
+    # are used, check the version directly in the LZ4 include file
+    if test "${have_lz4}" != "yes"; then
+	for ac_header in lz4.h
+do :
+  ac_fn_c_check_header_mongrel "$LINENO" "lz4.h" "ac_cv_header_lz4_h" "$ac_includes_default"
+if test "x$ac_cv_header_lz4_h" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+#define HAVE_LZ4_H 1
+_ACEOF
+ have_lz4h="yes"
+fi
+
+done
+
+
+	if test "${have_lz4h}" = "yes" ; then
+	    { $as_echo "$as_me:${as_lineno-$LINENO}: checking additionally if system LZ4 version >= 1.7.1" >&5
+$as_echo_n "checking additionally if system LZ4 version >= 1.7.1... " >&6; }
+	    cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+#include <lz4.h>
+
+int
+main ()
+{
+
+/* Version encoding: MMNNPP (Major miNor Patch) - see lz4.h for details */
+#if LZ4_VERSION_NUMBER < 10701L
+#error LZ4 is too old
+#endif
+
+
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_c_try_compile "$LINENO"; then :
+
+		    { $as_echo "$as_me:${as_lineno-$LINENO}: result: ok" >&5
+$as_echo "ok" >&6; }
+		    have_lz4="yes"
+
+else
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: system LZ4 library is too old" >&5
+$as_echo "system LZ4 library is too old" >&6; }
+
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+	fi
+    fi
+
+    # Double check we have a few needed functions
+    if test "${have_lz4}" = "yes" ; then
+	{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for LZ4_compress_default in -llz4" >&5
+$as_echo_n "checking for LZ4_compress_default in -llz4... " >&6; }
+if ${ac_cv_lib_lz4_LZ4_compress_default+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  ac_check_lib_save_LIBS=$LIBS
+LIBS="-llz4  $LIBS"
+cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+/* Override any GCC internal prototype to avoid an error.
+   Use char because int might match the return type of a GCC
+   builtin and then its argument prototype would still apply.  */
+#ifdef __cplusplus
+extern "C"
+#endif
+char LZ4_compress_default ();
+int
+main ()
+{
+return LZ4_compress_default ();
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_c_try_link "$LINENO"; then :
+  ac_cv_lib_lz4_LZ4_compress_default=yes
+else
+  ac_cv_lib_lz4_LZ4_compress_default=no
+fi
+rm -f core conftest.err conftest.$ac_objext \
+    conftest$ac_exeext conftest.$ac_ext
+LIBS=$ac_check_lib_save_LIBS
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_lib_lz4_LZ4_compress_default" >&5
+$as_echo "$ac_cv_lib_lz4_LZ4_compress_default" >&6; }
+if test "x$ac_cv_lib_lz4_LZ4_compress_default" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+#define HAVE_LIBLZ4 1
+_ACEOF
+
+  LIBS="-llz4 $LIBS"
+
+else
+  have_lz4="no"
+fi
+
+	{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for LZ4_decompress_safe in -llz4" >&5
+$as_echo_n "checking for LZ4_decompress_safe in -llz4... " >&6; }
+if ${ac_cv_lib_lz4_LZ4_decompress_safe+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  ac_check_lib_save_LIBS=$LIBS
+LIBS="-llz4  $LIBS"
+cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+/* Override any GCC internal prototype to avoid an error.
+   Use char because int might match the return type of a GCC
+   builtin and then its argument prototype would still apply.  */
+#ifdef __cplusplus
+extern "C"
+#endif
+char LZ4_decompress_safe ();
+int
+main ()
+{
+return LZ4_decompress_safe ();
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_c_try_link "$LINENO"; then :
+  ac_cv_lib_lz4_LZ4_decompress_safe=yes
+else
+  ac_cv_lib_lz4_LZ4_decompress_safe=no
+fi
+rm -f core conftest.err conftest.$ac_objext \
+    conftest$ac_exeext conftest.$ac_ext
+LIBS=$ac_check_lib_save_LIBS
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_lib_lz4_LZ4_decompress_safe" >&5
+$as_echo "$ac_cv_lib_lz4_LZ4_decompress_safe" >&6; }
+if test "x$ac_cv_lib_lz4_LZ4_decompress_safe" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+#define HAVE_LIBLZ4 1
+_ACEOF
+
+  LIBS="-llz4 $LIBS"
+
+else
+  have_lz4="no"
+fi
+
+    fi
+
+    if test "${have_lz4}" != "yes" ; then
+	{ $as_echo "$as_me:${as_lineno-$LINENO}: result: 		usable LZ4 library or header not found, using version in src/compat/compat-lz4.*" >&5
+$as_echo "		usable LZ4 library or header not found, using version in src/compat/compat-lz4.*" >&6; }
+
+$as_echo "#define NEED_COMPAT_LZ4 1" >>confdefs.h
+
+	LZ4_LIBS=""
+    fi
+    OPTIONAL_LZ4_CFLAGS="${LZ4_CFLAGS}"
+    OPTIONAL_LZ4_LIBS="${LZ4_LIBS}"
+
+$as_echo "#define ENABLE_LZ4 1" >>confdefs.h
+
+    CFLAGS="${saved_CFLAGS}"
+    LIBS="${saved_LIBS}"
+fi
+
+
+ if test "${enable_systemd}" = "yes"; then
+  ENABLE_SYSTEMD_TRUE=
+  ENABLE_SYSTEMD_FALSE='#'
+else
+  ENABLE_SYSTEMD_TRUE='#'
+  ENABLE_SYSTEMD_FALSE=
+fi
+
+if test "$enable_systemd" = "yes" ; then
+
+pkg_failed=no
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for libsystemd" >&5
+$as_echo_n "checking for libsystemd... " >&6; }
+
+if test -n "$libsystemd_CFLAGS"; then
+    pkg_cv_libsystemd_CFLAGS="$libsystemd_CFLAGS"
+ elif test -n "$PKG_CONFIG"; then
+    if test -n "$PKG_CONFIG" && \
+    { { $as_echo "$as_me:${as_lineno-$LINENO}: \$PKG_CONFIG --exists --print-errors \"systemd libsystemd\""; } >&5
+  ($PKG_CONFIG --exists --print-errors "systemd libsystemd") 2>&5
+  ac_status=$?
+  $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+  test $ac_status = 0; }; then
+  pkg_cv_libsystemd_CFLAGS=`$PKG_CONFIG --cflags "systemd libsystemd" 2>/dev/null`
+		      test "x$?" != "x0" && pkg_failed=yes
+else
+  pkg_failed=yes
+fi
+ else
+    pkg_failed=untried
+fi
+if test -n "$libsystemd_LIBS"; then
+    pkg_cv_libsystemd_LIBS="$libsystemd_LIBS"
+ elif test -n "$PKG_CONFIG"; then
+    if test -n "$PKG_CONFIG" && \
+    { { $as_echo "$as_me:${as_lineno-$LINENO}: \$PKG_CONFIG --exists --print-errors \"systemd libsystemd\""; } >&5
+  ($PKG_CONFIG --exists --print-errors "systemd libsystemd") 2>&5
+  ac_status=$?
+  $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+  test $ac_status = 0; }; then
+  pkg_cv_libsystemd_LIBS=`$PKG_CONFIG --libs "systemd libsystemd" 2>/dev/null`
+		      test "x$?" != "x0" && pkg_failed=yes
+else
+  pkg_failed=yes
+fi
+ else
+    pkg_failed=untried
+fi
+
+
+
+if test $pkg_failed = yes; then
+   	{ $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+
+if $PKG_CONFIG --atleast-pkgconfig-version 0.20; then
+        _pkg_short_errors_supported=yes
+else
+        _pkg_short_errors_supported=no
+fi
+        if test $_pkg_short_errors_supported = yes; then
+	        libsystemd_PKG_ERRORS=`$PKG_CONFIG --short-errors --print-errors --cflags --libs "systemd libsystemd" 2>&1`
+        else
+	        libsystemd_PKG_ERRORS=`$PKG_CONFIG --print-errors --cflags --libs "systemd libsystemd" 2>&1`
+        fi
+	# Put the nasty error message in config.log where it belongs
+	echo "$libsystemd_PKG_ERRORS" >&5
+
+
+pkg_failed=no
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for libsystemd" >&5
+$as_echo_n "checking for libsystemd... " >&6; }
+
+if test -n "$libsystemd_CFLAGS"; then
+    pkg_cv_libsystemd_CFLAGS="$libsystemd_CFLAGS"
+ elif test -n "$PKG_CONFIG"; then
+    if test -n "$PKG_CONFIG" && \
+    { { $as_echo "$as_me:${as_lineno-$LINENO}: \$PKG_CONFIG --exists --print-errors \"libsystemd-daemon\""; } >&5
+  ($PKG_CONFIG --exists --print-errors "libsystemd-daemon") 2>&5
+  ac_status=$?
+  $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+  test $ac_status = 0; }; then
+  pkg_cv_libsystemd_CFLAGS=`$PKG_CONFIG --cflags "libsystemd-daemon" 2>/dev/null`
+		      test "x$?" != "x0" && pkg_failed=yes
+else
+  pkg_failed=yes
+fi
+ else
+    pkg_failed=untried
+fi
+if test -n "$libsystemd_LIBS"; then
+    pkg_cv_libsystemd_LIBS="$libsystemd_LIBS"
+ elif test -n "$PKG_CONFIG"; then
+    if test -n "$PKG_CONFIG" && \
+    { { $as_echo "$as_me:${as_lineno-$LINENO}: \$PKG_CONFIG --exists --print-errors \"libsystemd-daemon\""; } >&5
+  ($PKG_CONFIG --exists --print-errors "libsystemd-daemon") 2>&5
+  ac_status=$?
+  $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+  test $ac_status = 0; }; then
+  pkg_cv_libsystemd_LIBS=`$PKG_CONFIG --libs "libsystemd-daemon" 2>/dev/null`
+		      test "x$?" != "x0" && pkg_failed=yes
+else
+  pkg_failed=yes
+fi
+ else
+    pkg_failed=untried
+fi
+
+
+
+if test $pkg_failed = yes; then
+   	{ $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+
+if $PKG_CONFIG --atleast-pkgconfig-version 0.20; then
+        _pkg_short_errors_supported=yes
+else
+        _pkg_short_errors_supported=no
+fi
+        if test $_pkg_short_errors_supported = yes; then
+	        libsystemd_PKG_ERRORS=`$PKG_CONFIG --short-errors --print-errors --cflags --libs "libsystemd-daemon" 2>&1`
+        else
+	        libsystemd_PKG_ERRORS=`$PKG_CONFIG --print-errors --cflags --libs "libsystemd-daemon" 2>&1`
+        fi
+	# Put the nasty error message in config.log where it belongs
+	echo "$libsystemd_PKG_ERRORS" >&5
+
+	as_fn_error $? "Package requirements (libsystemd-daemon) were not met:
+
+$libsystemd_PKG_ERRORS
+
+Consider adjusting the PKG_CONFIG_PATH environment variable if you
+installed software in a non-standard prefix.
+
+Alternatively, you may set the environment variables libsystemd_CFLAGS
+and libsystemd_LIBS to avoid the need to call pkg-config.
+See the pkg-config man page for more details." "$LINENO" 5
+elif test $pkg_failed = untried; then
+     	{ $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+	{ { $as_echo "$as_me:${as_lineno-$LINENO}: error: in \`$ac_pwd':" >&5
+$as_echo "$as_me: error: in \`$ac_pwd':" >&2;}
+as_fn_error $? "The pkg-config script could not be found or is too old.  Make sure it
+is in your PATH or set the PKG_CONFIG environment variable to the full
+path to pkg-config.
+
+Alternatively, you may set the environment variables libsystemd_CFLAGS
+and libsystemd_LIBS to avoid the need to call pkg-config.
+See the pkg-config man page for more details.
+
+To get pkg-config, see <http://pkg-config.freedesktop.org/>.
+See \`config.log' for more details" "$LINENO" 5; }
+else
+	libsystemd_CFLAGS=$pkg_cv_libsystemd_CFLAGS
+	libsystemd_LIBS=$pkg_cv_libsystemd_LIBS
+        { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+$as_echo "yes" >&6; }
+
+fi
+
+elif test $pkg_failed = untried; then
+     	{ $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+
+pkg_failed=no
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for libsystemd" >&5
+$as_echo_n "checking for libsystemd... " >&6; }
+
+if test -n "$libsystemd_CFLAGS"; then
+    pkg_cv_libsystemd_CFLAGS="$libsystemd_CFLAGS"
+ elif test -n "$PKG_CONFIG"; then
+    if test -n "$PKG_CONFIG" && \
+    { { $as_echo "$as_me:${as_lineno-$LINENO}: \$PKG_CONFIG --exists --print-errors \"libsystemd-daemon\""; } >&5
+  ($PKG_CONFIG --exists --print-errors "libsystemd-daemon") 2>&5
+  ac_status=$?
+  $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+  test $ac_status = 0; }; then
+  pkg_cv_libsystemd_CFLAGS=`$PKG_CONFIG --cflags "libsystemd-daemon" 2>/dev/null`
+		      test "x$?" != "x0" && pkg_failed=yes
+else
+  pkg_failed=yes
+fi
+ else
+    pkg_failed=untried
+fi
+if test -n "$libsystemd_LIBS"; then
+    pkg_cv_libsystemd_LIBS="$libsystemd_LIBS"
+ elif test -n "$PKG_CONFIG"; then
+    if test -n "$PKG_CONFIG" && \
+    { { $as_echo "$as_me:${as_lineno-$LINENO}: \$PKG_CONFIG --exists --print-errors \"libsystemd-daemon\""; } >&5
+  ($PKG_CONFIG --exists --print-errors "libsystemd-daemon") 2>&5
+  ac_status=$?
+  $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+  test $ac_status = 0; }; then
+  pkg_cv_libsystemd_LIBS=`$PKG_CONFIG --libs "libsystemd-daemon" 2>/dev/null`
+		      test "x$?" != "x0" && pkg_failed=yes
+else
+  pkg_failed=yes
+fi
+ else
+    pkg_failed=untried
+fi
+
+
+
+if test $pkg_failed = yes; then
+   	{ $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+
+if $PKG_CONFIG --atleast-pkgconfig-version 0.20; then
+        _pkg_short_errors_supported=yes
+else
+        _pkg_short_errors_supported=no
+fi
+        if test $_pkg_short_errors_supported = yes; then
+	        libsystemd_PKG_ERRORS=`$PKG_CONFIG --short-errors --print-errors --cflags --libs "libsystemd-daemon" 2>&1`
+        else
+	        libsystemd_PKG_ERRORS=`$PKG_CONFIG --print-errors --cflags --libs "libsystemd-daemon" 2>&1`
+        fi
+	# Put the nasty error message in config.log where it belongs
+	echo "$libsystemd_PKG_ERRORS" >&5
+
+	as_fn_error $? "Package requirements (libsystemd-daemon) were not met:
+
+$libsystemd_PKG_ERRORS
+
+Consider adjusting the PKG_CONFIG_PATH environment variable if you
+installed software in a non-standard prefix.
+
+Alternatively, you may set the environment variables libsystemd_CFLAGS
+and libsystemd_LIBS to avoid the need to call pkg-config.
+See the pkg-config man page for more details." "$LINENO" 5
+elif test $pkg_failed = untried; then
+     	{ $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+	{ { $as_echo "$as_me:${as_lineno-$LINENO}: error: in \`$ac_pwd':" >&5
+$as_echo "$as_me: error: in \`$ac_pwd':" >&2;}
+as_fn_error $? "The pkg-config script could not be found or is too old.  Make sure it
+is in your PATH or set the PKG_CONFIG environment variable to the full
+path to pkg-config.
+
+Alternatively, you may set the environment variables libsystemd_CFLAGS
+and libsystemd_LIBS to avoid the need to call pkg-config.
+See the pkg-config man page for more details.
+
+To get pkg-config, see <http://pkg-config.freedesktop.org/>.
+See \`config.log' for more details" "$LINENO" 5; }
+else
+	libsystemd_CFLAGS=$pkg_cv_libsystemd_CFLAGS
+	libsystemd_LIBS=$pkg_cv_libsystemd_LIBS
+        { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+$as_echo "yes" >&6; }
+
+fi
+
+else
+	libsystemd_CFLAGS=$pkg_cv_libsystemd_CFLAGS
+	libsystemd_LIBS=$pkg_cv_libsystemd_LIBS
+        { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+$as_echo "yes" >&6; }
+
+fi
+
+    if test -n "$PKG_CONFIG" && \
+    { { $as_echo "$as_me:${as_lineno-$LINENO}: \$PKG_CONFIG --exists --print-errors \"libsystemd > 216\""; } >&5
+  ($PKG_CONFIG --exists --print-errors "libsystemd > 216") 2>&5
+  ac_status=$?
+  $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+  test $ac_status = 0; }; then
+
+$as_echo "#define SYSTEMD_NEWER_THAN_216 1" >>confdefs.h
+
+
+fi
+
+    for ac_header in systemd/sd-daemon.h
+do :
+  ac_fn_c_check_header_mongrel "$LINENO" "systemd/sd-daemon.h" "ac_cv_header_systemd_sd_daemon_h" "$ac_includes_default"
+if test "x$ac_cv_header_systemd_sd_daemon_h" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+#define HAVE_SYSTEMD_SD_DAEMON_H 1
+_ACEOF
+
+else
+
+	   as_fn_error $? "systemd development headers not found." "$LINENO" 5
+
+fi
+
+done
+
+
+    saved_LIBS="${LIBS}"
+    LIBS="${LIBS} ${libsystemd_LIBS}"
+    for ac_func in sd_booted
+do :
+  ac_fn_c_check_func "$LINENO" "sd_booted" "ac_cv_func_sd_booted"
+if test "x$ac_cv_func_sd_booted" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+#define HAVE_SD_BOOTED 1
+_ACEOF
+
+else
+  as_fn_error $? "systemd library is missing sd_booted()" "$LINENO" 5
+fi
+done
+
+    OPTIONAL_SYSTEMD_LIBS="${libsystemd_LIBS}"
+
+$as_echo "#define ENABLE_SYSTEMD 1" >>confdefs.h
+
+    LIBS="${saved_LIBS}"
+
+    if test -n "${SYSTEMD_UNIT_DIR}"; then
+        systemdunitdir="${SYSTEMD_UNIT_DIR}"
+    else
+        systemdunitdir="\${libdir}/systemd/system"
+    fi
+
+    if test -n "${TMPFILES_DIR}"; then
+        tmpfilesdir="${TMPFILES_DIR}"
+    else
+        tmpfilesdir="\${libdir}/tmpfiles.d"
+    fi
+fi
+
+
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking git checkout" >&5
+$as_echo_n "checking git checkout... " >&6; }
+GIT_CHECKOUT="no"
+if test -n "${GIT}" -a -d "${srcdir}/.git"; then
+
+$as_echo "#define HAVE_CONFIG_VERSION_H 1" >>confdefs.h
+
+	GIT_CHECKOUT="yes"
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: ${GIT_CHECKOUT}" >&5
+$as_echo "${GIT_CHECKOUT}" >&6; }
+
+if test -n "${SP_PLATFORM_WINDOWS}"; then
+
+cat >>confdefs.h <<_ACEOF
+#define PATH_SEPARATOR '\\\\'
+_ACEOF
+ #"
+
+cat >>confdefs.h <<_ACEOF
+#define PATH_SEPARATOR_STR "\\\\"
+_ACEOF
+ #"
+else
+
+cat >>confdefs.h <<_ACEOF
+#define PATH_SEPARATOR '/'
+_ACEOF
+
+
+cat >>confdefs.h <<_ACEOF
+#define PATH_SEPARATOR_STR "/"
+_ACEOF
+
+fi
+
+if test "${enable_x509_alt_username}" = "yes"; then
+	if test "${with_crypto_library}" = "mbedtls" ; then
+		as_fn_error $? "mbed TLS does not support the --x509-username-field feature" "$LINENO" 5
+	fi
+
+
+$as_echo "#define ENABLE_X509ALTUSERNAME 1" >>confdefs.h
+
+fi
+
+test "${ac_cv_header_sys_uio_h}" = "yes" &&
+$as_echo "#define HAVE_IOVEC 1" >>confdefs.h
+
+test "${enable_management}" = "yes" &&
+$as_echo "#define ENABLE_MANAGEMENT 1" >>confdefs.h
+
+test "${enable_multihome}" = "yes" &&
+$as_echo "#define ENABLE_MULTIHOME 1" >>confdefs.h
+
+test "${enable_debug}" = "yes" &&
+$as_echo "#define ENABLE_DEBUG 1" >>confdefs.h
+
+test "${enable_small}" = "yes" &&
+$as_echo "#define ENABLE_SMALL 1" >>confdefs.h
+
+test "${enable_fragment}" = "yes" &&
+$as_echo "#define ENABLE_FRAGMENT 1" >>confdefs.h
+
+test "${enable_port_share}" = "yes" &&
+$as_echo "#define ENABLE_PORT_SHARE 1" >>confdefs.h
+
+test "${enable_def_auth}" = "yes" &&
+$as_echo "#define ENABLE_DEF_AUTH 1" >>confdefs.h
+
+test "${enable_pf}" = "yes" &&
+$as_echo "#define ENABLE_PF 1" >>confdefs.h
+
+test "${enable_strict_options}" = "yes" &&
+$as_echo "#define ENABLE_STRICT_OPTIONS_CHECK 1" >>confdefs.h
+
+
+test "${enable_crypto_ofb_cfb}" = "yes" &&
+$as_echo "#define ENABLE_OFB_CFB_MODE 1" >>confdefs.h
+
+if test "${have_export_keying_material}" = "yes"; then
+
+$as_echo "#define HAVE_EXPORT_KEYING_MATERIAL 1" >>confdefs.h
+
+fi
+OPTIONAL_CRYPTO_CFLAGS="${OPTIONAL_CRYPTO_CFLAGS} ${CRYPTO_CFLAGS}"
+OPTIONAL_CRYPTO_LIBS="${OPTIONAL_CRYPTO_LIBS} ${CRYPTO_LIBS}"
+
+if test "${enable_plugins}" = "yes"; then
+	OPTIONAL_DL_LIBS="${DL_LIBS}"
+
+$as_echo "#define ENABLE_PLUGIN 1" >>confdefs.h
+
+else
+	enable_plugin_auth_pam="no"
+	enable_plugin_down_root="no"
+fi
+
+ if false; then
+  HAVE_SITNL_TRUE=
+  HAVE_SITNL_FALSE='#'
+else
+  HAVE_SITNL_TRUE='#'
+  HAVE_SITNL_FALSE=
+fi
+
+
+if test "${enable_iproute2}" = "yes"; then
+	test -z "${IPROUTE}" && as_fn_error $? "ip utility is required but missing" "$LINENO" 5
+
+$as_echo "#define ENABLE_IPROUTE 1" >>confdefs.h
+
+else if test "${have_sitnl}" = "yes"; then
+
+$as_echo "#define ENABLE_SITNL 1" >>confdefs.h
+
+	 if true; then
+  HAVE_SITNL_TRUE=
+  HAVE_SITNL_FALSE='#'
+else
+  HAVE_SITNL_TRUE='#'
+  HAVE_SITNL_FALSE=
+fi
+
+else if test "${WIN32}" != "yes" -a "${have_sitnl}" != "yes"; then
+	test -z "${ROUTE}" && as_fn_error $? "route utility is required but missing" "$LINENO" 5
+	test -z "${IFCONFIG}" && as_fn_error $? "ifconfig utility is required but missing" "$LINENO" 5
+fi
+fi
+fi
+
+if test "${enable_selinux}" = "yes"; then
+	test -z "${SELINUX_LIBS}" && as_fn_error $? "libselinux required but missing" "$LINENO" 5
+	OPTIONAL_SELINUX_LIBS="${SELINUX_LIBS}"
+
+$as_echo "#define ENABLE_SELINUX 1" >>confdefs.h
+
+fi
+
+if test "${enable_lzo}" = "yes"; then
+	test "${have_lzo}" != "yes" && as_fn_error $? "lzo enabled but missing" "$LINENO" 5
+	OPTIONAL_LZO_CFLAGS="${LZO_CFLAGS}"
+	OPTIONAL_LZO_LIBS="${LZO_LIBS}"
+
+$as_echo "#define ENABLE_LZO 1" >>confdefs.h
+
+fi
+if test "${enable_comp_stub}" = "yes"; then
+	test "${enable_lzo}" = "yes" && as_fn_error $? "Cannot have both comp stub and lzo enabled (use --disable-lzo)" "$LINENO" 5
+	test "${enable_lz4}" = "yes" && as_fn_error $? "Cannot have both comp stub and LZ4 enabled (use --disable-lz4)" "$LINENO" 5
+
+$as_echo "#define ENABLE_COMP_STUB 1" >>confdefs.h
+
+fi
+
+if test "${enable_pkcs11}" = "yes"; then
+	test "${have_pkcs11_helper}" != "yes" && as_fn_error $? "PKCS11 enabled but libpkcs11-helper is missing" "$LINENO" 5
+	OPTIONAL_PKCS11_HELPER_CFLAGS="${PKCS11_HELPER_CFLAGS}"
+	OPTIONAL_PKCS11_HELPER_LIBS="${PKCS11_HELPER_LIBS}"
+
+$as_echo "#define ENABLE_PKCS11 1" >>confdefs.h
+
+
+pkg_failed=no
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for P11KIT" >&5
+$as_echo_n "checking for P11KIT... " >&6; }
+
+if test -n "$P11KIT_CFLAGS"; then
+    pkg_cv_P11KIT_CFLAGS="$P11KIT_CFLAGS"
+ elif test -n "$PKG_CONFIG"; then
+    if test -n "$PKG_CONFIG" && \
+    { { $as_echo "$as_me:${as_lineno-$LINENO}: \$PKG_CONFIG --exists --print-errors \"p11-kit-1\""; } >&5
+  ($PKG_CONFIG --exists --print-errors "p11-kit-1") 2>&5
+  ac_status=$?
+  $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+  test $ac_status = 0; }; then
+  pkg_cv_P11KIT_CFLAGS=`$PKG_CONFIG --cflags "p11-kit-1" 2>/dev/null`
+		      test "x$?" != "x0" && pkg_failed=yes
+else
+  pkg_failed=yes
+fi
+ else
+    pkg_failed=untried
+fi
+if test -n "$P11KIT_LIBS"; then
+    pkg_cv_P11KIT_LIBS="$P11KIT_LIBS"
+ elif test -n "$PKG_CONFIG"; then
+    if test -n "$PKG_CONFIG" && \
+    { { $as_echo "$as_me:${as_lineno-$LINENO}: \$PKG_CONFIG --exists --print-errors \"p11-kit-1\""; } >&5
+  ($PKG_CONFIG --exists --print-errors "p11-kit-1") 2>&5
+  ac_status=$?
+  $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+  test $ac_status = 0; }; then
+  pkg_cv_P11KIT_LIBS=`$PKG_CONFIG --libs "p11-kit-1" 2>/dev/null`
+		      test "x$?" != "x0" && pkg_failed=yes
+else
+  pkg_failed=yes
+fi
+ else
+    pkg_failed=untried
+fi
+
+
+
+if test $pkg_failed = yes; then
+   	{ $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+
+if $PKG_CONFIG --atleast-pkgconfig-version 0.20; then
+        _pkg_short_errors_supported=yes
+else
+        _pkg_short_errors_supported=no
+fi
+        if test $_pkg_short_errors_supported = yes; then
+	        P11KIT_PKG_ERRORS=`$PKG_CONFIG --short-errors --print-errors --cflags --libs "p11-kit-1" 2>&1`
+        else
+	        P11KIT_PKG_ERRORS=`$PKG_CONFIG --print-errors --cflags --libs "p11-kit-1" 2>&1`
+        fi
+	# Put the nasty error message in config.log where it belongs
+	echo "$P11KIT_PKG_ERRORS" >&5
+
+
+
+elif test $pkg_failed = untried; then
+     	{ $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+
+
+else
+	P11KIT_CFLAGS=$pkg_cv_P11KIT_CFLAGS
+	P11KIT_LIBS=$pkg_cv_P11KIT_LIBS
+        { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+$as_echo "yes" >&6; }
+	proxy_module="`$PKG_CONFIG --variable=proxy_module p11-kit-1`"
+
+cat >>confdefs.h <<_ACEOF
+#define DEFAULT_PKCS11_MODULE "${proxy_module}"
+_ACEOF
+
+fi
+fi
+
+# When testing a compiler option, we add -Werror to force
+# an error when the option is unsupported. This is not
+# required for gcc, but some compilers such as clang needs it.
+
+
+
+    old_cflags="$CFLAGS"
+    CFLAGS="-Wno-stringop-truncation -Werror $CFLAGS"
+    { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether the compiler accepts -Wno-stringop-truncation" >&5
+$as_echo_n "checking whether the compiler accepts -Wno-stringop-truncation... " >&6; }
+    cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+int
+main ()
+{
+
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_c_try_compile "$LINENO"; then :
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+$as_echo "yes" >&6; }; CFLAGS="-Wno-stringop-truncation $old_cflags"
+else
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }; CFLAGS="$old_cflags"
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+
+
+    old_cflags="$CFLAGS"
+    CFLAGS="-Wno-unused-function -Werror $CFLAGS"
+    { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether the compiler accepts -Wno-unused-function" >&5
+$as_echo_n "checking whether the compiler accepts -Wno-unused-function... " >&6; }
+    cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+int
+main ()
+{
+
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_c_try_compile "$LINENO"; then :
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+$as_echo "yes" >&6; }; CFLAGS="-Wno-unused-function $old_cflags"
+else
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }; CFLAGS="$old_cflags"
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+
+
+    old_cflags="$CFLAGS"
+    CFLAGS="-Wno-unused-parameter -Werror $CFLAGS"
+    { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether the compiler accepts -Wno-unused-parameter" >&5
+$as_echo_n "checking whether the compiler accepts -Wno-unused-parameter... " >&6; }
+    cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+int
+main ()
+{
+
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_c_try_compile "$LINENO"; then :
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+$as_echo "yes" >&6; }; CFLAGS="-Wno-unused-parameter $old_cflags"
+else
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }; CFLAGS="$old_cflags"
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+
+
+    old_cflags="$CFLAGS"
+    CFLAGS="-Wall -Werror $CFLAGS"
+    { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether the compiler accepts -Wall" >&5
+$as_echo_n "checking whether the compiler accepts -Wall... " >&6; }
+    cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+int
+main ()
+{
+
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_c_try_compile "$LINENO"; then :
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+$as_echo "yes" >&6; }; CFLAGS="-Wall $old_cflags"
+else
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }; CFLAGS="$old_cflags"
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+
+
+if test "${enable_pedantic}" = "yes"; then
+	enable_strict="yes"
+	CFLAGS="${CFLAGS} -pedantic"
+
+$as_echo "#define PEDANTIC 1" >>confdefs.h
+
+fi
+if test "${enable_strict}" = "yes"; then
+	CFLAGS="${CFLAGS} -Wsign-compare -Wuninitialized"
+fi
+if test "${enable_werror}" = "yes"; then
+	CFLAGS="${CFLAGS} -Werror"
+fi
+
+if test "${enable_plugin_auth_pam}" = "yes"; then
+	PLUGIN_AUTH_PAM_CFLAGS="${LIBPAM_CFLAGS}"
+	if test "${enable_pam_dlopen}" = "yes"; then
+
+$as_echo "#define USE_PAM_DLOPEN 1" >>confdefs.h
+
+		PLUGIN_AUTH_PAM_LIBS="${DL_LIBS}"
+	else
+		test -z "${LIBPAM_LIBS}" && as_fn_error $? "libpam required but missing" "$LINENO" 5
+		PLUGIN_AUTH_PAM_LIBS="${LIBPAM_LIBS}"
+	fi
+fi
+
+if test "${enable_async_push}" = "yes"; then
+	case "$host" in
+		*-*-freebsd*)
+
+pkg_failed=no
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for OPTIONAL_INOTIFY" >&5
+$as_echo_n "checking for OPTIONAL_INOTIFY... " >&6; }
+
+if test -n "$OPTIONAL_INOTIFY_CFLAGS"; then
+    pkg_cv_OPTIONAL_INOTIFY_CFLAGS="$OPTIONAL_INOTIFY_CFLAGS"
+ elif test -n "$PKG_CONFIG"; then
+    if test -n "$PKG_CONFIG" && \
+    { { $as_echo "$as_me:${as_lineno-$LINENO}: \$PKG_CONFIG --exists --print-errors \"libinotify\""; } >&5
+  ($PKG_CONFIG --exists --print-errors "libinotify") 2>&5
+  ac_status=$?
+  $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+  test $ac_status = 0; }; then
+  pkg_cv_OPTIONAL_INOTIFY_CFLAGS=`$PKG_CONFIG --cflags "libinotify" 2>/dev/null`
+		      test "x$?" != "x0" && pkg_failed=yes
+else
+  pkg_failed=yes
+fi
+ else
+    pkg_failed=untried
+fi
+if test -n "$OPTIONAL_INOTIFY_LIBS"; then
+    pkg_cv_OPTIONAL_INOTIFY_LIBS="$OPTIONAL_INOTIFY_LIBS"
+ elif test -n "$PKG_CONFIG"; then
+    if test -n "$PKG_CONFIG" && \
+    { { $as_echo "$as_me:${as_lineno-$LINENO}: \$PKG_CONFIG --exists --print-errors \"libinotify\""; } >&5
+  ($PKG_CONFIG --exists --print-errors "libinotify") 2>&5
+  ac_status=$?
+  $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+  test $ac_status = 0; }; then
+  pkg_cv_OPTIONAL_INOTIFY_LIBS=`$PKG_CONFIG --libs "libinotify" 2>/dev/null`
+		      test "x$?" != "x0" && pkg_failed=yes
+else
+  pkg_failed=yes
+fi
+ else
+    pkg_failed=untried
+fi
+
+
+
+if test $pkg_failed = yes; then
+   	{ $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+
+if $PKG_CONFIG --atleast-pkgconfig-version 0.20; then
+        _pkg_short_errors_supported=yes
+else
+        _pkg_short_errors_supported=no
+fi
+        if test $_pkg_short_errors_supported = yes; then
+	        OPTIONAL_INOTIFY_PKG_ERRORS=`$PKG_CONFIG --short-errors --print-errors --cflags --libs "libinotify" 2>&1`
+        else
+	        OPTIONAL_INOTIFY_PKG_ERRORS=`$PKG_CONFIG --print-errors --cflags --libs "libinotify" 2>&1`
+        fi
+	# Put the nasty error message in config.log where it belongs
+	echo "$OPTIONAL_INOTIFY_PKG_ERRORS" >&5
+
+	as_fn_error $? "Package requirements (libinotify) were not met:
+
+$OPTIONAL_INOTIFY_PKG_ERRORS
+
+Consider adjusting the PKG_CONFIG_PATH environment variable if you
+installed software in a non-standard prefix.
+
+Alternatively, you may set the environment variables OPTIONAL_INOTIFY_CFLAGS
+and OPTIONAL_INOTIFY_LIBS to avoid the need to call pkg-config.
+See the pkg-config man page for more details." "$LINENO" 5
+elif test $pkg_failed = untried; then
+     	{ $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+	{ { $as_echo "$as_me:${as_lineno-$LINENO}: error: in \`$ac_pwd':" >&5
+$as_echo "$as_me: error: in \`$ac_pwd':" >&2;}
+as_fn_error $? "The pkg-config script could not be found or is too old.  Make sure it
+is in your PATH or set the PKG_CONFIG environment variable to the full
+path to pkg-config.
+
+Alternatively, you may set the environment variables OPTIONAL_INOTIFY_CFLAGS
+and OPTIONAL_INOTIFY_LIBS to avoid the need to call pkg-config.
+See the pkg-config man page for more details.
+
+To get pkg-config, see <http://pkg-config.freedesktop.org/>.
+See \`config.log' for more details" "$LINENO" 5; }
+else
+	OPTIONAL_INOTIFY_CFLAGS=$pkg_cv_OPTIONAL_INOTIFY_CFLAGS
+	OPTIONAL_INOTIFY_LIBS=$pkg_cv_OPTIONAL_INOTIFY_LIBS
+        { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+$as_echo "yes" >&6; }
+
+					$as_echo "#define HAVE_SYS_INOTIFY_H 1" >>confdefs.h
+
+
+$as_echo "#define ENABLE_ASYNC_PUSH 1" >>confdefs.h
+
+
+
+fi
+		;;
+		*)
+			for ac_header in sys/inotify.h
+do :
+  ac_fn_c_check_header_mongrel "$LINENO" "sys/inotify.h" "ac_cv_header_sys_inotify_h" "$ac_includes_default"
+if test "x$ac_cv_header_sys_inotify_h" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+#define HAVE_SYS_INOTIFY_H 1
+_ACEOF
+
+$as_echo "#define ENABLE_ASYNC_PUSH 1" >>confdefs.h
+
+else
+  as_fn_error $? "inotify.h not found." "$LINENO" 5
+
+fi
+
+done
+
+		;;
+	esac
+fi
+
+CONFIGURE_DEFINES="`set | grep '^enable_.*=' ; set | grep '^with_.*='`"
+
+cat >>confdefs.h <<_ACEOF
+#define CONFIGURE_DEFINES "`echo ${CONFIGURE_DEFINES}`"
+_ACEOF
+
+
+TAP_WIN_COMPONENT_ID="tap0901"
+TAP_WIN_MIN_MAJOR="9"
+TAP_WIN_MIN_MINOR="9"
+
+cat >>confdefs.h <<_ACEOF
+#define TAP_WIN_COMPONENT_ID "${TAP_WIN_COMPONENT_ID}"
+_ACEOF
+
+
+cat >>confdefs.h <<_ACEOF
+#define TAP_WIN_MIN_MAJOR ${TAP_WIN_MIN_MAJOR}
+_ACEOF
+
+
+cat >>confdefs.h <<_ACEOF
+#define TAP_WIN_MIN_MINOR ${TAP_WIN_MIN_MINOR}
+_ACEOF
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+ if test "${WIN32}" = "yes"; then
+  WIN32_TRUE=
+  WIN32_FALSE='#'
+else
+  WIN32_TRUE='#'
+  WIN32_FALSE=
+fi
+
+ if test "${GIT_CHECKOUT}" = "yes"; then
+  GIT_CHECKOUT_TRUE=
+  GIT_CHECKOUT_FALSE='#'
+else
+  GIT_CHECKOUT_TRUE='#'
+  GIT_CHECKOUT_FALSE=
+fi
+
+ if test "${enable_plugin_auth_pam}" = "yes"; then
+  ENABLE_PLUGIN_AUTH_PAM_TRUE=
+  ENABLE_PLUGIN_AUTH_PAM_FALSE='#'
+else
+  ENABLE_PLUGIN_AUTH_PAM_TRUE='#'
+  ENABLE_PLUGIN_AUTH_PAM_FALSE=
+fi
+
+ if test "${enable_plugin_down_root}" = "yes"; then
+  ENABLE_PLUGIN_DOWN_ROOT_TRUE=
+  ENABLE_PLUGIN_DOWN_ROOT_FALSE='#'
+else
+  ENABLE_PLUGIN_DOWN_ROOT_TRUE='#'
+  ENABLE_PLUGIN_DOWN_ROOT_FALSE=
+fi
+
+ if test "${have_ld_wrap_support}" = "yes"; then
+  HAVE_LD_WRAP_SUPPORT_TRUE=
+  HAVE_LD_WRAP_SUPPORT_FALSE='#'
+else
+  HAVE_LD_WRAP_SUPPORT_TRUE='#'
+  HAVE_LD_WRAP_SUPPORT_FALSE=
+fi
+
+ if test "${have_openssl_engine}" = "yes"; then
+  OPENSSL_ENGINE_TRUE=
+  OPENSSL_ENGINE_FALSE='#'
+else
+  OPENSSL_ENGINE_TRUE='#'
+  OPENSSL_ENGINE_FALSE=
+fi
+
+
+sampledir="\$(docdir)/sample"
+
+
+
+
+
+
+# Check whether --enable-unit-tests was given.
+if test "${enable_unit_tests+set}" = set; then :
+  enableval=$enable_unit_tests;
+else
+  enable_unit_tests="yes"
+
+fi
+
+
+# Check if cmocka is available - needed for unit testing
+
+pkg_failed=no
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for CMOCKA" >&5
+$as_echo_n "checking for CMOCKA... " >&6; }
+
+if test -n "$CMOCKA_CFLAGS"; then
+    pkg_cv_CMOCKA_CFLAGS="$CMOCKA_CFLAGS"
+ elif test -n "$PKG_CONFIG"; then
+    if test -n "$PKG_CONFIG" && \
+    { { $as_echo "$as_me:${as_lineno-$LINENO}: \$PKG_CONFIG --exists --print-errors \"cmocka\""; } >&5
+  ($PKG_CONFIG --exists --print-errors "cmocka") 2>&5
+  ac_status=$?
+  $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+  test $ac_status = 0; }; then
+  pkg_cv_CMOCKA_CFLAGS=`$PKG_CONFIG --cflags "cmocka" 2>/dev/null`
+		      test "x$?" != "x0" && pkg_failed=yes
+else
+  pkg_failed=yes
+fi
+ else
+    pkg_failed=untried
+fi
+if test -n "$CMOCKA_LIBS"; then
+    pkg_cv_CMOCKA_LIBS="$CMOCKA_LIBS"
+ elif test -n "$PKG_CONFIG"; then
+    if test -n "$PKG_CONFIG" && \
+    { { $as_echo "$as_me:${as_lineno-$LINENO}: \$PKG_CONFIG --exists --print-errors \"cmocka\""; } >&5
+  ($PKG_CONFIG --exists --print-errors "cmocka") 2>&5
+  ac_status=$?
+  $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+  test $ac_status = 0; }; then
+  pkg_cv_CMOCKA_LIBS=`$PKG_CONFIG --libs "cmocka" 2>/dev/null`
+		      test "x$?" != "x0" && pkg_failed=yes
+else
+  pkg_failed=yes
+fi
+ else
+    pkg_failed=untried
+fi
+
+
+
+if test $pkg_failed = yes; then
+   	{ $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+
+if $PKG_CONFIG --atleast-pkgconfig-version 0.20; then
+        _pkg_short_errors_supported=yes
+else
+        _pkg_short_errors_supported=no
+fi
+        if test $_pkg_short_errors_supported = yes; then
+	        CMOCKA_PKG_ERRORS=`$PKG_CONFIG --short-errors --print-errors --cflags --libs "cmocka" 2>&1`
+        else
+	        CMOCKA_PKG_ERRORS=`$PKG_CONFIG --print-errors --cflags --libs "cmocka" 2>&1`
+        fi
+	# Put the nasty error message in config.log where it belongs
+	echo "$CMOCKA_PKG_ERRORS" >&5
+
+	{ $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: cmocka.pc not found on the system.  Unit tests disabled" >&5
+$as_echo "$as_me: WARNING: cmocka.pc not found on the system.  Unit tests disabled" >&2;}
+
+elif test $pkg_failed = untried; then
+     	{ $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+	{ $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: cmocka.pc not found on the system.  Unit tests disabled" >&5
+$as_echo "$as_me: WARNING: cmocka.pc not found on the system.  Unit tests disabled" >&2;}
+
+else
+	CMOCKA_CFLAGS=$pkg_cv_CMOCKA_CFLAGS
+	CMOCKA_LIBS=$pkg_cv_CMOCKA_LIBS
+        { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+$as_echo "yes" >&6; }
+	have_cmocka="yes"
+fi
+ if test "${enable_unit_tests}" = "yes" -a "${have_cmocka}" = "yes" ; then
+  ENABLE_UNITTESTS_TRUE=
+  ENABLE_UNITTESTS_FALSE='#'
+else
+  ENABLE_UNITTESTS_TRUE='#'
+  ENABLE_UNITTESTS_FALSE=
+fi
+
+
+
+TEST_LDFLAGS="${OPTIONAL_CRYPTO_LIBS} ${OPTIONAL_PKCS11_HELPER_LIBS}"
+TEST_LDFLAGS="${TEST_LDFLAGS} ${OPTIONAL_LZO_LIBS} ${CMOCKA_LIBS}"
+TEST_CFLAGS="${OPTIONAL_CRYPTO_CFLAGS} ${OPTIONAL_PKCS11_HELPER_CFLAGS}"
+TEST_CFLAGS="${TEST_CFLAGS} ${OPTIONAL_LZO_CFLAGS}"
+TEST_CFLAGS="${TEST_CFLAGS} -I\$(top_srcdir)/include ${CMOCKA_CFLAGS}"
+
+
+
+
+ac_config_files="$ac_config_files version.sh Makefile build/Makefile build/msvc/Makefile build/msvc/msvc-generate/Makefile distro/Makefile distro/systemd/Makefile doc/Makefile doc/doxygen/Makefile doc/doxygen/openvpn.doxyfile include/Makefile src/Makefile src/compat/Makefile src/openvpn/Makefile src/openvpnmsica/Makefile src/openvpnserv/Makefile src/plugins/Makefile src/plugins/auth-pam/Makefile src/plugins/down-root/Makefile src/tapctl/Makefile tests/Makefile tests/unit_tests/Makefile tests/unit_tests/example_test/Makefile tests/unit_tests/openvpn/Makefile tests/unit_tests/plugins/Makefile tests/unit_tests/plugins/auth-pam/Makefile tests/unit_tests/engine-key/Makefile sample/Makefile"
+
+ac_config_files="$ac_config_files tests/t_client.sh"
+
+cat >confcache <<\_ACEOF
+# This file is a shell script that caches the results of configure
+# tests run on this system so they can be shared between configure
+# scripts and configure runs, see configure's option --config-cache.
+# It is not useful on other systems.  If it contains results you don't
+# want to keep, you may remove or edit it.
+#
+# config.status only pays attention to the cache file if you give it
+# the --recheck option to rerun configure.
+#
+# `ac_cv_env_foo' variables (set or unset) will be overridden when
+# loading this file, other *unset* `ac_cv_foo' will be assigned the
+# following values.
+
+_ACEOF
+
+# The following way of writing the cache mishandles newlines in values,
+# but we know of no workaround that is simple, portable, and efficient.
+# So, we kill variables containing newlines.
+# Ultrix sh set writes to stderr and can't be redirected directly,
+# and sets the high bit in the cache file unless we assign to the vars.
+(
+  for ac_var in `(set) 2>&1 | sed -n 's/^\([a-zA-Z_][a-zA-Z0-9_]*\)=.*/\1/p'`; do
+    eval ac_val=\$$ac_var
+    case $ac_val in #(
+    *${as_nl}*)
+      case $ac_var in #(
+      *_cv_*) { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: cache variable $ac_var contains a newline" >&5
+$as_echo "$as_me: WARNING: cache variable $ac_var contains a newline" >&2;} ;;
+      esac
+      case $ac_var in #(
+      _ | IFS | as_nl) ;; #(
+      BASH_ARGV | BASH_SOURCE) eval $ac_var= ;; #(
+      *) { eval $ac_var=; unset $ac_var;} ;;
+      esac ;;
+    esac
+  done
+
+  (set) 2>&1 |
+    case $as_nl`(ac_space=' '; set) 2>&1` in #(
+    *${as_nl}ac_space=\ *)
+      # `set' does not quote correctly, so add quotes: double-quote
+      # substitution turns \\\\ into \\, and sed turns \\ into \.
+      sed -n \
+	"s/'/'\\\\''/g;
+	  s/^\\([_$as_cr_alnum]*_cv_[_$as_cr_alnum]*\\)=\\(.*\\)/\\1='\\2'/p"
+      ;; #(
+    *)
+      # `set' quotes correctly as required by POSIX, so do not add quotes.
+      sed -n "/^[_$as_cr_alnum]*_cv_[_$as_cr_alnum]*=/p"
+      ;;
+    esac |
+    sort
+) |
+  sed '
+     /^ac_cv_env_/b end
+     t clear
+     :clear
+     s/^\([^=]*\)=\(.*[{}].*\)$/test "${\1+set}" = set || &/
+     t end
+     s/^\([^=]*\)=\(.*\)$/\1=${\1=\2}/
+     :end' >>confcache
+if diff "$cache_file" confcache >/dev/null 2>&1; then :; else
+  if test -w "$cache_file"; then
+    if test "x$cache_file" != "x/dev/null"; then
+      { $as_echo "$as_me:${as_lineno-$LINENO}: updating cache $cache_file" >&5
+$as_echo "$as_me: updating cache $cache_file" >&6;}
+      if test ! -f "$cache_file" || test -h "$cache_file"; then
+	cat confcache >"$cache_file"
+      else
+        case $cache_file in #(
+        */* | ?:*)
+	  mv -f confcache "$cache_file"$$ &&
+	  mv -f "$cache_file"$$ "$cache_file" ;; #(
+        *)
+	  mv -f confcache "$cache_file" ;;
+	esac
+      fi
+    fi
+  else
+    { $as_echo "$as_me:${as_lineno-$LINENO}: not updating unwritable cache $cache_file" >&5
+$as_echo "$as_me: not updating unwritable cache $cache_file" >&6;}
+  fi
+fi
+rm -f confcache
+
+test "x$prefix" = xNONE && prefix=$ac_default_prefix
+# Let make expand exec_prefix.
+test "x$exec_prefix" = xNONE && exec_prefix='${prefix}'
+
+DEFS=-DHAVE_CONFIG_H
+
+ac_libobjs=
+ac_ltlibobjs=
+U=
+for ac_i in : $LIBOBJS; do test "x$ac_i" = x: && continue
+  # 1. Remove the extension, and $U if already installed.
+  ac_script='s/\$U\././;s/\.o$//;s/\.obj$//'
+  ac_i=`$as_echo "$ac_i" | sed "$ac_script"`
+  # 2. Prepend LIBOBJDIR.  When used with automake>=1.10 LIBOBJDIR
+  #    will be set to the directory where LIBOBJS objects are built.
+  as_fn_append ac_libobjs " \${LIBOBJDIR}$ac_i\$U.$ac_objext"
+  as_fn_append ac_ltlibobjs " \${LIBOBJDIR}$ac_i"'$U.lo'
+done
+LIBOBJS=$ac_libobjs
+
+LTLIBOBJS=$ac_ltlibobjs
+
+
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking that generated files are newer than configure" >&5
+$as_echo_n "checking that generated files are newer than configure... " >&6; }
+   if test -n "$am_sleep_pid"; then
+     # Hide warnings about reused PIDs.
+     wait $am_sleep_pid 2>/dev/null
+   fi
+   { $as_echo "$as_me:${as_lineno-$LINENO}: result: done" >&5
+$as_echo "done" >&6; }
+ if test -n "$EXEEXT"; then
+  am__EXEEXT_TRUE=
+  am__EXEEXT_FALSE='#'
+else
+  am__EXEEXT_TRUE='#'
+  am__EXEEXT_FALSE=
+fi
+
+if test -z "${AMDEP_TRUE}" && test -z "${AMDEP_FALSE}"; then
+  as_fn_error $? "conditional \"AMDEP\" was never defined.
+Usually this means the macro was only invoked conditionally." "$LINENO" 5
+fi
+if test -z "${am__fastdepCC_TRUE}" && test -z "${am__fastdepCC_FALSE}"; then
+  as_fn_error $? "conditional \"am__fastdepCC\" was never defined.
+Usually this means the macro was only invoked conditionally." "$LINENO" 5
+fi
+if test -z "${TARGET_LINUX_TRUE}" && test -z "${TARGET_LINUX_FALSE}"; then
+  as_fn_error $? "conditional \"TARGET_LINUX\" was never defined.
+Usually this means the macro was only invoked conditionally." "$LINENO" 5
+fi
+if test -z "${TARGET_LINUX_TRUE}" && test -z "${TARGET_LINUX_FALSE}"; then
+  as_fn_error $? "conditional \"TARGET_LINUX\" was never defined.
+Usually this means the macro was only invoked conditionally." "$LINENO" 5
+fi
+if test -z "${HAVE_PYDOCUTILS_TRUE}" && test -z "${HAVE_PYDOCUTILS_FALSE}"; then
+  as_fn_error $? "conditional \"HAVE_PYDOCUTILS\" was never defined.
+Usually this means the macro was only invoked conditionally." "$LINENO" 5
+fi
+if test -z "${ENABLE_SYSTEMD_TRUE}" && test -z "${ENABLE_SYSTEMD_FALSE}"; then
+  as_fn_error $? "conditional \"ENABLE_SYSTEMD\" was never defined.
+Usually this means the macro was only invoked conditionally." "$LINENO" 5
+fi
+if test -z "${HAVE_SITNL_TRUE}" && test -z "${HAVE_SITNL_FALSE}"; then
+  as_fn_error $? "conditional \"HAVE_SITNL\" was never defined.
+Usually this means the macro was only invoked conditionally." "$LINENO" 5
+fi
+if test -z "${HAVE_SITNL_TRUE}" && test -z "${HAVE_SITNL_FALSE}"; then
+  as_fn_error $? "conditional \"HAVE_SITNL\" was never defined.
+Usually this means the macro was only invoked conditionally." "$LINENO" 5
+fi
+if test -z "${WIN32_TRUE}" && test -z "${WIN32_FALSE}"; then
+  as_fn_error $? "conditional \"WIN32\" was never defined.
+Usually this means the macro was only invoked conditionally." "$LINENO" 5
+fi
+if test -z "${GIT_CHECKOUT_TRUE}" && test -z "${GIT_CHECKOUT_FALSE}"; then
+  as_fn_error $? "conditional \"GIT_CHECKOUT\" was never defined.
+Usually this means the macro was only invoked conditionally." "$LINENO" 5
+fi
+if test -z "${ENABLE_PLUGIN_AUTH_PAM_TRUE}" && test -z "${ENABLE_PLUGIN_AUTH_PAM_FALSE}"; then
+  as_fn_error $? "conditional \"ENABLE_PLUGIN_AUTH_PAM\" was never defined.
+Usually this means the macro was only invoked conditionally." "$LINENO" 5
+fi
+if test -z "${ENABLE_PLUGIN_DOWN_ROOT_TRUE}" && test -z "${ENABLE_PLUGIN_DOWN_ROOT_FALSE}"; then
+  as_fn_error $? "conditional \"ENABLE_PLUGIN_DOWN_ROOT\" was never defined.
+Usually this means the macro was only invoked conditionally." "$LINENO" 5
+fi
+if test -z "${HAVE_LD_WRAP_SUPPORT_TRUE}" && test -z "${HAVE_LD_WRAP_SUPPORT_FALSE}"; then
+  as_fn_error $? "conditional \"HAVE_LD_WRAP_SUPPORT\" was never defined.
+Usually this means the macro was only invoked conditionally." "$LINENO" 5
+fi
+if test -z "${OPENSSL_ENGINE_TRUE}" && test -z "${OPENSSL_ENGINE_FALSE}"; then
+  as_fn_error $? "conditional \"OPENSSL_ENGINE\" was never defined.
+Usually this means the macro was only invoked conditionally." "$LINENO" 5
+fi
+if test -z "${ENABLE_UNITTESTS_TRUE}" && test -z "${ENABLE_UNITTESTS_FALSE}"; then
+  as_fn_error $? "conditional \"ENABLE_UNITTESTS\" was never defined.
+Usually this means the macro was only invoked conditionally." "$LINENO" 5
+fi
+
+: "${CONFIG_STATUS=./config.status}"
+ac_write_fail=0
+ac_clean_files_save=$ac_clean_files
+ac_clean_files="$ac_clean_files $CONFIG_STATUS"
+{ $as_echo "$as_me:${as_lineno-$LINENO}: creating $CONFIG_STATUS" >&5
+$as_echo "$as_me: creating $CONFIG_STATUS" >&6;}
+as_write_fail=0
+cat >$CONFIG_STATUS <<_ASEOF || as_write_fail=1
+#! $SHELL
+# Generated by $as_me.
+# Run this file to recreate the current configuration.
+# Compiler output produced by configure, useful for debugging
+# configure, is in config.log if it exists.
+
+debug=false
+ac_cs_recheck=false
+ac_cs_silent=false
+
+SHELL=\${CONFIG_SHELL-$SHELL}
+export SHELL
+_ASEOF
+cat >>$CONFIG_STATUS <<\_ASEOF || as_write_fail=1
+## -------------------- ##
+## M4sh Initialization. ##
+## -------------------- ##
+
+# Be more Bourne compatible
+DUALCASE=1; export DUALCASE # for MKS sh
+if test -n "${ZSH_VERSION+set}" && (emulate sh) >/dev/null 2>&1; then :
+  emulate sh
+  NULLCMD=:
+  # Pre-4.2 versions of Zsh do word splitting on ${1+"$@"}, which
+  # is contrary to our usage.  Disable this feature.
+  alias -g '${1+"$@"}'='"$@"'
+  setopt NO_GLOB_SUBST
+else
+  case `(set -o) 2>/dev/null` in #(
+  *posix*) :
+    set -o posix ;; #(
+  *) :
+     ;;
+esac
+fi
+
+
+as_nl='
+'
+export as_nl
+# Printing a long string crashes Solaris 7 /usr/bin/printf.
+as_echo='\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\'
+as_echo=$as_echo$as_echo$as_echo$as_echo$as_echo
+as_echo=$as_echo$as_echo$as_echo$as_echo$as_echo$as_echo
+# Prefer a ksh shell builtin over an external printf program on Solaris,
+# but without wasting forks for bash or zsh.
+if test -z "$BASH_VERSION$ZSH_VERSION" \
+    && (test "X`print -r -- $as_echo`" = "X$as_echo") 2>/dev/null; then
+  as_echo='print -r --'
+  as_echo_n='print -rn --'
+elif (test "X`printf %s $as_echo`" = "X$as_echo") 2>/dev/null; then
+  as_echo='printf %s\n'
+  as_echo_n='printf %s'
+else
+  if test "X`(/usr/ucb/echo -n -n $as_echo) 2>/dev/null`" = "X-n $as_echo"; then
+    as_echo_body='eval /usr/ucb/echo -n "$1$as_nl"'
+    as_echo_n='/usr/ucb/echo -n'
+  else
+    as_echo_body='eval expr "X$1" : "X\\(.*\\)"'
+    as_echo_n_body='eval
+      arg=$1;
+      case $arg in #(
+      *"$as_nl"*)
+	expr "X$arg" : "X\\(.*\\)$as_nl";
+	arg=`expr "X$arg" : ".*$as_nl\\(.*\\)"`;;
+      esac;
+      expr "X$arg" : "X\\(.*\\)" | tr -d "$as_nl"
+    '
+    export as_echo_n_body
+    as_echo_n='sh -c $as_echo_n_body as_echo'
+  fi
+  export as_echo_body
+  as_echo='sh -c $as_echo_body as_echo'
+fi
+
+# The user is always right.
+if test "${PATH_SEPARATOR+set}" != set; then
+  PATH_SEPARATOR=:
+  (PATH='/bin;/bin'; FPATH=$PATH; sh -c :) >/dev/null 2>&1 && {
+    (PATH='/bin:/bin'; FPATH=$PATH; sh -c :) >/dev/null 2>&1 ||
+      PATH_SEPARATOR=';'
+  }
+fi
+
+
+# IFS
+# We need space, tab and new line, in precisely that order.  Quoting is
+# there to prevent editors from complaining about space-tab.
+# (If _AS_PATH_WALK were called with IFS unset, it would disable word
+# splitting by setting IFS to empty value.)
+IFS=" ""	$as_nl"
+
+# Find who we are.  Look in the path if we contain no directory separator.
+as_myself=
+case $0 in #((
+  *[\\/]* ) as_myself=$0 ;;
+  *) as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+for as_dir in $PATH
+do
+  IFS=$as_save_IFS
+  test -z "$as_dir" && as_dir=.
+    test -r "$as_dir/$0" && as_myself=$as_dir/$0 && break
+  done
+IFS=$as_save_IFS
+
+     ;;
+esac
+# We did not find ourselves, most probably we were run as `sh COMMAND'
+# in which case we are not to be found in the path.
+if test "x$as_myself" = x; then
+  as_myself=$0
+fi
+if test ! -f "$as_myself"; then
+  $as_echo "$as_myself: error: cannot find myself; rerun with an absolute file name" >&2
+  exit 1
+fi
+
+# Unset variables that we do not need and which cause bugs (e.g. in
+# pre-3.0 UWIN ksh).  But do not cause bugs in bash 2.01; the "|| exit 1"
+# suppresses any "Segmentation fault" message there.  '((' could
+# trigger a bug in pdksh 5.2.14.
+for as_var in BASH_ENV ENV MAIL MAILPATH
+do eval test x\${$as_var+set} = xset \
+  && ( (unset $as_var) || exit 1) >/dev/null 2>&1 && unset $as_var || :
+done
+PS1='$ '
+PS2='> '
+PS4='+ '
+
+# NLS nuisances.
+LC_ALL=C
+export LC_ALL
+LANGUAGE=C
+export LANGUAGE
+
+# CDPATH.
+(unset CDPATH) >/dev/null 2>&1 && unset CDPATH
+
+
+# as_fn_error STATUS ERROR [LINENO LOG_FD]
+# ----------------------------------------
+# Output "`basename $0`: error: ERROR" to stderr. If LINENO and LOG_FD are
+# provided, also output the error to LOG_FD, referencing LINENO. Then exit the
+# script with STATUS, using 1 if that was 0.
+as_fn_error ()
+{
+  as_status=$1; test $as_status -eq 0 && as_status=1
+  if test "$4"; then
+    as_lineno=${as_lineno-"$3"} as_lineno_stack=as_lineno_stack=$as_lineno_stack
+    $as_echo "$as_me:${as_lineno-$LINENO}: error: $2" >&$4
+  fi
+  $as_echo "$as_me: error: $2" >&2
+  as_fn_exit $as_status
+} # as_fn_error
+
+
+# as_fn_set_status STATUS
+# -----------------------
+# Set $? to STATUS, without forking.
+as_fn_set_status ()
+{
+  return $1
+} # as_fn_set_status
+
+# as_fn_exit STATUS
+# -----------------
+# Exit the shell with STATUS, even in a "trap 0" or "set -e" context.
+as_fn_exit ()
+{
+  set +e
+  as_fn_set_status $1
+  exit $1
+} # as_fn_exit
+
+# as_fn_unset ax_cv_socklen_t_equiv
+# ---------------------------------
+# Portably unset VAR.
+as_fn_unset ()
+{
+  { eval $1=; unset $1;}
+}
+as_unset=as_fn_unset
+# as_fn_append ax_cv_socklen_t_equiv VALUE
+# ----------------------------------------
+# Append the text in VALUE to the end of the definition contained in VAR. Take
+# advantage of any shell optimizations that allow amortized linear growth over
+# repeated appends, instead of the typical quadratic growth present in naive
+# implementations.
+if (eval "as_var=1; as_var+=2; test x\$as_var = x12") 2>/dev/null; then :
+  eval 'as_fn_append ()
+  {
+    eval $1+=\$2
+  }'
+else
+  as_fn_append ()
+  {
+    eval $1=\$$1\$2
+  }
+fi # as_fn_append
+
+# as_fn_arith ARG...
+# ------------------
+# Perform arithmetic evaluation on the ARGs, and store the result in the
+# global $as_val. Take advantage of shells that can avoid forks. The arguments
+# must be portable across $(()) and expr.
+if (eval "test \$(( 1 + 1 )) = 2") 2>/dev/null; then :
+  eval 'as_fn_arith ()
+  {
+    as_val=$(( $* ))
+  }'
+else
+  as_fn_arith ()
+  {
+    as_val=`expr "$@" || test $? -eq 1`
+  }
+fi # as_fn_arith
+
+
+if expr a : '\(a\)' >/dev/null 2>&1 &&
+   test "X`expr 00001 : '.*\(...\)'`" = X001; then
+  as_expr=expr
+else
+  as_expr=false
+fi
+
+if (basename -- /) >/dev/null 2>&1 && test "X`basename -- / 2>&1`" = "X/"; then
+  as_basename=basename
+else
+  as_basename=false
+fi
+
+if (as_dir=`dirname -- /` && test "X$as_dir" = X/) >/dev/null 2>&1; then
+  as_dirname=dirname
+else
+  as_dirname=false
+fi
+
+as_me=`$as_basename -- "$0" ||
+$as_expr X/"$0" : '.*/\([^/][^/]*\)/*$' \| \
+	 X"$0" : 'X\(//\)$' \| \
+	 X"$0" : 'X\(/\)' \| . 2>/dev/null ||
+$as_echo X/"$0" |
+    sed '/^.*\/\([^/][^/]*\)\/*$/{
+	    s//\1/
+	    q
+	  }
+	  /^X\/\(\/\/\)$/{
+	    s//\1/
+	    q
+	  }
+	  /^X\/\(\/\).*/{
+	    s//\1/
+	    q
+	  }
+	  s/.*/./; q'`
+
+# Avoid depending upon Character Ranges.
+as_cr_letters='abcdefghijklmnopqrstuvwxyz'
+as_cr_LETTERS='ABCDEFGHIJKLMNOPQRSTUVWXYZ'
+as_cr_Letters=$as_cr_letters$as_cr_LETTERS
+as_cr_digits='0123456789'
+as_cr_alnum=$as_cr_Letters$as_cr_digits
+
+ECHO_C= ECHO_N= ECHO_T=
+case `echo -n x` in #(((((
+-n*)
+  case `echo 'xy\c'` in
+  *c*) ECHO_T='	';;	# ECHO_T is single tab character.
+  xy)  ECHO_C='\c';;
+  *)   echo `echo ksh88 bug on AIX 6.1` > /dev/null
+       ECHO_T='	';;
+  esac;;
+*)
+  ECHO_N='-n';;
+esac
+
+rm -f conf$$ conf$$.exe conf$$.file
+if test -d conf$$.dir; then
+  rm -f conf$$.dir/conf$$.file
+else
+  rm -f conf$$.dir
+  mkdir conf$$.dir 2>/dev/null
+fi
+if (echo >conf$$.file) 2>/dev/null; then
+  if ln -s conf$$.file conf$$ 2>/dev/null; then
+    as_ln_s='ln -s'
+    # ... but there are two gotchas:
+    # 1) On MSYS, both `ln -s file dir' and `ln file dir' fail.
+    # 2) DJGPP < 2.04 has no symlinks; `ln -s' creates a wrapper executable.
+    # In both cases, we have to default to `cp -pR'.
+    ln -s conf$$.file conf$$.dir 2>/dev/null && test ! -f conf$$.exe ||
+      as_ln_s='cp -pR'
+  elif ln conf$$.file conf$$ 2>/dev/null; then
+    as_ln_s=ln
+  else
+    as_ln_s='cp -pR'
+  fi
+else
+  as_ln_s='cp -pR'
+fi
+rm -f conf$$ conf$$.exe conf$$.dir/conf$$.file conf$$.file
+rmdir conf$$.dir 2>/dev/null
+
+
+# as_fn_mkdir_p
+# -------------
+# Create "$as_dir" as a directory, including parents if necessary.
+as_fn_mkdir_p ()
+{
+
+  case $as_dir in #(
+  -*) as_dir=./$as_dir;;
+  esac
+  test -d "$as_dir" || eval $as_mkdir_p || {
+    as_dirs=
+    while :; do
+      case $as_dir in #(
+      *\'*) as_qdir=`$as_echo "$as_dir" | sed "s/'/'\\\\\\\\''/g"`;; #'(
+      *) as_qdir=$as_dir;;
+      esac
+      as_dirs="'$as_qdir' $as_dirs"
+      as_dir=`$as_dirname -- "$as_dir" ||
+$as_expr X"$as_dir" : 'X\(.*[^/]\)//*[^/][^/]*/*$' \| \
+	 X"$as_dir" : 'X\(//\)[^/]' \| \
+	 X"$as_dir" : 'X\(//\)$' \| \
+	 X"$as_dir" : 'X\(/\)' \| . 2>/dev/null ||
+$as_echo X"$as_dir" |
+    sed '/^X\(.*[^/]\)\/\/*[^/][^/]*\/*$/{
+	    s//\1/
+	    q
+	  }
+	  /^X\(\/\/\)[^/].*/{
+	    s//\1/
+	    q
+	  }
+	  /^X\(\/\/\)$/{
+	    s//\1/
+	    q
+	  }
+	  /^X\(\/\).*/{
+	    s//\1/
+	    q
+	  }
+	  s/.*/./; q'`
+      test -d "$as_dir" && break
+    done
+    test -z "$as_dirs" || eval "mkdir $as_dirs"
+  } || test -d "$as_dir" || as_fn_error $? "cannot create directory $as_dir"
+
+
+} # as_fn_mkdir_p
+if mkdir -p . 2>/dev/null; then
+  as_mkdir_p='mkdir -p "$as_dir"'
+else
+  test -d ./-p && rmdir ./-p
+  as_mkdir_p=false
+fi
+
+
+# as_fn_executable_p FILE
+# -----------------------
+# Test if FILE is an executable regular file.
+as_fn_executable_p ()
+{
+  test -f "$1" && test -x "$1"
+} # as_fn_executable_p
+as_test_x='test -x'
+as_executable_p=as_fn_executable_p
+
+# Sed expression to map a string onto a valid CPP name.
+as_tr_cpp="eval sed 'y%*$as_cr_letters%P$as_cr_LETTERS%;s%[^_$as_cr_alnum]%_%g'"
+
+# Sed expression to map a string onto a valid variable name.
+as_tr_sh="eval sed 'y%*+%pp%;s%[^_$as_cr_alnum]%_%g'"
+
+
+exec 6>&1
+## ----------------------------------- ##
+## Main body of $CONFIG_STATUS script. ##
+## ----------------------------------- ##
+_ASEOF
+test $as_write_fail = 0 && chmod +x $CONFIG_STATUS || ac_write_fail=1
+
+cat >>$CONFIG_STATUS <<\_ACEOF || ac_write_fail=1
+# Save the log message, to keep $0 and so on meaningful, and to
+# report actual input values of CONFIG_FILES etc. instead of their
+# values after options handling.
+ac_log="
+This file was extended by OpenVPN $as_me 2.5_beta3, which was
+generated by GNU Autoconf 2.69.  Invocation command line was
+
+  CONFIG_FILES    = $CONFIG_FILES
+  CONFIG_HEADERS  = $CONFIG_HEADERS
+  CONFIG_LINKS    = $CONFIG_LINKS
+  CONFIG_COMMANDS = $CONFIG_COMMANDS
+  $ $0 $@
+
+on `(hostname || uname -n) 2>/dev/null | sed 1q`
+"
+
+_ACEOF
+
+case $ac_config_files in *"
+"*) set x $ac_config_files; shift; ac_config_files=$*;;
+esac
+
+case $ac_config_headers in *"
+"*) set x $ac_config_headers; shift; ac_config_headers=$*;;
+esac
+
+
+cat >>$CONFIG_STATUS <<_ACEOF || ac_write_fail=1
+# Files that config.status was made for.
+config_files="$ac_config_files"
+config_headers="$ac_config_headers"
+config_commands="$ac_config_commands"
+
+_ACEOF
+
+cat >>$CONFIG_STATUS <<\_ACEOF || ac_write_fail=1
+ac_cs_usage="\
+\`$as_me' instantiates files and other configuration actions
+from templates according to the current configuration.  Unless the files
+and actions are specified as TAGs, all are instantiated by default.
+
+Usage: $0 [OPTION]... [TAG]...
+
+  -h, --help       print this help, then exit
+  -V, --version    print version number and configuration settings, then exit
+      --config     print configuration, then exit
+  -q, --quiet, --silent
+                   do not print progress messages
+  -d, --debug      don't remove temporary files
+      --recheck    update $as_me by reconfiguring in the same conditions
+      --file=FILE[:TEMPLATE]
+                   instantiate the configuration file FILE
+      --header=FILE[:TEMPLATE]
+                   instantiate the configuration header FILE
+
+Configuration files:
+$config_files
+
+Configuration headers:
+$config_headers
+
+Configuration commands:
+$config_commands
+
+Report bugs to <openvpn-users@lists.sourceforge.net>."
+
+_ACEOF
+cat >>$CONFIG_STATUS <<_ACEOF || ac_write_fail=1
+ac_cs_config="`$as_echo "$ac_configure_args" | sed 's/^ //; s/[\\""\`\$]/\\\\&/g'`"
+ac_cs_version="\\
+OpenVPN config.status 2.5_beta3
+configured by $0, generated by GNU Autoconf 2.69,
+  with options \\"\$ac_cs_config\\"
+
+Copyright (C) 2012 Free Software Foundation, Inc.
+This config.status script is free software; the Free Software Foundation
+gives unlimited permission to copy, distribute and modify it."
+
+ac_pwd='$ac_pwd'
+srcdir='$srcdir'
+INSTALL='$INSTALL'
+MKDIR_P='$MKDIR_P'
+AWK='$AWK'
+test -n "\$AWK" || AWK=awk
+_ACEOF
+
+cat >>$CONFIG_STATUS <<\_ACEOF || ac_write_fail=1
+# The default lists apply if the user does not specify any file.
+ac_need_defaults=:
+while test $# != 0
+do
+  case $1 in
+  --*=?*)
+    ac_option=`expr "X$1" : 'X\([^=]*\)='`
+    ac_optarg=`expr "X$1" : 'X[^=]*=\(.*\)'`
+    ac_shift=:
+    ;;
+  --*=)
+    ac_option=`expr "X$1" : 'X\([^=]*\)='`
+    ac_optarg=
+    ac_shift=:
+    ;;
+  *)
+    ac_option=$1
+    ac_optarg=$2
+    ac_shift=shift
+    ;;
+  esac
+
+  case $ac_option in
+  # Handling of the options.
+  -recheck | --recheck | --rechec | --reche | --rech | --rec | --re | --r)
+    ac_cs_recheck=: ;;
+  --version | --versio | --versi | --vers | --ver | --ve | --v | -V )
+    $as_echo "$ac_cs_version"; exit ;;
+  --config | --confi | --conf | --con | --co | --c )
+    $as_echo "$ac_cs_config"; exit ;;
+  --debug | --debu | --deb | --de | --d | -d )
+    debug=: ;;
+  --file | --fil | --fi | --f )
+    $ac_shift
+    case $ac_optarg in
+    *\'*) ac_optarg=`$as_echo "$ac_optarg" | sed "s/'/'\\\\\\\\''/g"` ;;
+    '') as_fn_error $? "missing file argument" ;;
+    esac
+    as_fn_append CONFIG_FILES " '$ac_optarg'"
+    ac_need_defaults=false;;
+  --header | --heade | --head | --hea )
+    $ac_shift
+    case $ac_optarg in
+    *\'*) ac_optarg=`$as_echo "$ac_optarg" | sed "s/'/'\\\\\\\\''/g"` ;;
+    esac
+    as_fn_append CONFIG_HEADERS " '$ac_optarg'"
+    ac_need_defaults=false;;
+  --he | --h)
+    # Conflict between --help and --header
+    as_fn_error $? "ambiguous option: \`$1'
+Try \`$0 --help' for more information.";;
+  --help | --hel | -h )
+    $as_echo "$ac_cs_usage"; exit ;;
+  -q | -quiet | --quiet | --quie | --qui | --qu | --q \
+  | -silent | --silent | --silen | --sile | --sil | --si | --s)
+    ac_cs_silent=: ;;
+
+  # This is an error.
+  -*) as_fn_error $? "unrecognized option: \`$1'
+Try \`$0 --help' for more information." ;;
+
+  *) as_fn_append ac_config_targets " $1"
+     ac_need_defaults=false ;;
+
+  esac
+  shift
+done
+
+ac_configure_extra_args=
+
+if $ac_cs_silent; then
+  exec 6>/dev/null
+  ac_configure_extra_args="$ac_configure_extra_args --silent"
+fi
+
+_ACEOF
+cat >>$CONFIG_STATUS <<_ACEOF || ac_write_fail=1
+if \$ac_cs_recheck; then
+  set X $SHELL '$0' $ac_configure_args \$ac_configure_extra_args --no-create --no-recursion
+  shift
+  \$as_echo "running CONFIG_SHELL=$SHELL \$*" >&6
+  CONFIG_SHELL='$SHELL'
+  export CONFIG_SHELL
+  exec "\$@"
+fi
+
+_ACEOF
+cat >>$CONFIG_STATUS <<\_ACEOF || ac_write_fail=1
+exec 5>>config.log
+{
+  echo
+  sed 'h;s/./-/g;s/^.../## /;s/...$/ ##/;p;x;p;x' <<_ASBOX
+## Running $as_me. ##
+_ASBOX
+  $as_echo "$ac_log"
+} >&5
+
+_ACEOF
+cat >>$CONFIG_STATUS <<_ACEOF || ac_write_fail=1
+#
+# INIT-COMMANDS
+#
+AMDEP_TRUE="$AMDEP_TRUE" MAKE="${MAKE-make}"
+
+
+# The HP-UX ksh and POSIX shell print the target directory to stdout
+# if CDPATH is set.
+(unset CDPATH) >/dev/null 2>&1 && unset CDPATH
+
+sed_quote_subst='$sed_quote_subst'
+double_quote_subst='$double_quote_subst'
+delay_variable_subst='$delay_variable_subst'
+macro_version='`$ECHO "$macro_version" | $SED "$delay_single_quote_subst"`'
+macro_revision='`$ECHO "$macro_revision" | $SED "$delay_single_quote_subst"`'
+AS='`$ECHO "$AS" | $SED "$delay_single_quote_subst"`'
+DLLTOOL='`$ECHO "$DLLTOOL" | $SED "$delay_single_quote_subst"`'
+OBJDUMP='`$ECHO "$OBJDUMP" | $SED "$delay_single_quote_subst"`'
+enable_shared='`$ECHO "$enable_shared" | $SED "$delay_single_quote_subst"`'
+enable_static='`$ECHO "$enable_static" | $SED "$delay_single_quote_subst"`'
+pic_mode='`$ECHO "$pic_mode" | $SED "$delay_single_quote_subst"`'
+enable_fast_install='`$ECHO "$enable_fast_install" | $SED "$delay_single_quote_subst"`'
+shared_archive_member_spec='`$ECHO "$shared_archive_member_spec" | $SED "$delay_single_quote_subst"`'
+SHELL='`$ECHO "$SHELL" | $SED "$delay_single_quote_subst"`'
+ECHO='`$ECHO "$ECHO" | $SED "$delay_single_quote_subst"`'
+PATH_SEPARATOR='`$ECHO "$PATH_SEPARATOR" | $SED "$delay_single_quote_subst"`'
+host_alias='`$ECHO "$host_alias" | $SED "$delay_single_quote_subst"`'
+host='`$ECHO "$host" | $SED "$delay_single_quote_subst"`'
+host_os='`$ECHO "$host_os" | $SED "$delay_single_quote_subst"`'
+build_alias='`$ECHO "$build_alias" | $SED "$delay_single_quote_subst"`'
+build='`$ECHO "$build" | $SED "$delay_single_quote_subst"`'
+build_os='`$ECHO "$build_os" | $SED "$delay_single_quote_subst"`'
+SED='`$ECHO "$SED" | $SED "$delay_single_quote_subst"`'
+Xsed='`$ECHO "$Xsed" | $SED "$delay_single_quote_subst"`'
+GREP='`$ECHO "$GREP" | $SED "$delay_single_quote_subst"`'
+EGREP='`$ECHO "$EGREP" | $SED "$delay_single_quote_subst"`'
+FGREP='`$ECHO "$FGREP" | $SED "$delay_single_quote_subst"`'
+LD='`$ECHO "$LD" | $SED "$delay_single_quote_subst"`'
+NM='`$ECHO "$NM" | $SED "$delay_single_quote_subst"`'
+LN_S='`$ECHO "$LN_S" | $SED "$delay_single_quote_subst"`'
+max_cmd_len='`$ECHO "$max_cmd_len" | $SED "$delay_single_quote_subst"`'
+ac_objext='`$ECHO "$ac_objext" | $SED "$delay_single_quote_subst"`'
+exeext='`$ECHO "$exeext" | $SED "$delay_single_quote_subst"`'
+lt_unset='`$ECHO "$lt_unset" | $SED "$delay_single_quote_subst"`'
+lt_SP2NL='`$ECHO "$lt_SP2NL" | $SED "$delay_single_quote_subst"`'
+lt_NL2SP='`$ECHO "$lt_NL2SP" | $SED "$delay_single_quote_subst"`'
+lt_cv_to_host_file_cmd='`$ECHO "$lt_cv_to_host_file_cmd" | $SED "$delay_single_quote_subst"`'
+lt_cv_to_tool_file_cmd='`$ECHO "$lt_cv_to_tool_file_cmd" | $SED "$delay_single_quote_subst"`'
+reload_flag='`$ECHO "$reload_flag" | $SED "$delay_single_quote_subst"`'
+reload_cmds='`$ECHO "$reload_cmds" | $SED "$delay_single_quote_subst"`'
+deplibs_check_method='`$ECHO "$deplibs_check_method" | $SED "$delay_single_quote_subst"`'
+file_magic_cmd='`$ECHO "$file_magic_cmd" | $SED "$delay_single_quote_subst"`'
+file_magic_glob='`$ECHO "$file_magic_glob" | $SED "$delay_single_quote_subst"`'
+want_nocaseglob='`$ECHO "$want_nocaseglob" | $SED "$delay_single_quote_subst"`'
+sharedlib_from_linklib_cmd='`$ECHO "$sharedlib_from_linklib_cmd" | $SED "$delay_single_quote_subst"`'
+AR='`$ECHO "$AR" | $SED "$delay_single_quote_subst"`'
+AR_FLAGS='`$ECHO "$AR_FLAGS" | $SED "$delay_single_quote_subst"`'
+archiver_list_spec='`$ECHO "$archiver_list_spec" | $SED "$delay_single_quote_subst"`'
+STRIP='`$ECHO "$STRIP" | $SED "$delay_single_quote_subst"`'
+RANLIB='`$ECHO "$RANLIB" | $SED "$delay_single_quote_subst"`'
+old_postinstall_cmds='`$ECHO "$old_postinstall_cmds" | $SED "$delay_single_quote_subst"`'
+old_postuninstall_cmds='`$ECHO "$old_postuninstall_cmds" | $SED "$delay_single_quote_subst"`'
+old_archive_cmds='`$ECHO "$old_archive_cmds" | $SED "$delay_single_quote_subst"`'
+lock_old_archive_extraction='`$ECHO "$lock_old_archive_extraction" | $SED "$delay_single_quote_subst"`'
+CC='`$ECHO "$CC" | $SED "$delay_single_quote_subst"`'
+CFLAGS='`$ECHO "$CFLAGS" | $SED "$delay_single_quote_subst"`'
+compiler='`$ECHO "$compiler" | $SED "$delay_single_quote_subst"`'
+GCC='`$ECHO "$GCC" | $SED "$delay_single_quote_subst"`'
+lt_cv_sys_global_symbol_pipe='`$ECHO "$lt_cv_sys_global_symbol_pipe" | $SED "$delay_single_quote_subst"`'
+lt_cv_sys_global_symbol_to_cdecl='`$ECHO "$lt_cv_sys_global_symbol_to_cdecl" | $SED "$delay_single_quote_subst"`'
+lt_cv_sys_global_symbol_to_import='`$ECHO "$lt_cv_sys_global_symbol_to_import" | $SED "$delay_single_quote_subst"`'
+lt_cv_sys_global_symbol_to_c_name_address='`$ECHO "$lt_cv_sys_global_symbol_to_c_name_address" | $SED "$delay_single_quote_subst"`'
+lt_cv_sys_global_symbol_to_c_name_address_lib_prefix='`$ECHO "$lt_cv_sys_global_symbol_to_c_name_address_lib_prefix" | $SED "$delay_single_quote_subst"`'
+lt_cv_nm_interface='`$ECHO "$lt_cv_nm_interface" | $SED "$delay_single_quote_subst"`'
+nm_file_list_spec='`$ECHO "$nm_file_list_spec" | $SED "$delay_single_quote_subst"`'
+lt_sysroot='`$ECHO "$lt_sysroot" | $SED "$delay_single_quote_subst"`'
+lt_cv_truncate_bin='`$ECHO "$lt_cv_truncate_bin" | $SED "$delay_single_quote_subst"`'
+objdir='`$ECHO "$objdir" | $SED "$delay_single_quote_subst"`'
+MAGIC_CMD='`$ECHO "$MAGIC_CMD" | $SED "$delay_single_quote_subst"`'
+lt_prog_compiler_no_builtin_flag='`$ECHO "$lt_prog_compiler_no_builtin_flag" | $SED "$delay_single_quote_subst"`'
+lt_prog_compiler_pic='`$ECHO "$lt_prog_compiler_pic" | $SED "$delay_single_quote_subst"`'
+lt_prog_compiler_wl='`$ECHO "$lt_prog_compiler_wl" | $SED "$delay_single_quote_subst"`'
+lt_prog_compiler_static='`$ECHO "$lt_prog_compiler_static" | $SED "$delay_single_quote_subst"`'
+lt_cv_prog_compiler_c_o='`$ECHO "$lt_cv_prog_compiler_c_o" | $SED "$delay_single_quote_subst"`'
+need_locks='`$ECHO "$need_locks" | $SED "$delay_single_quote_subst"`'
+MANIFEST_TOOL='`$ECHO "$MANIFEST_TOOL" | $SED "$delay_single_quote_subst"`'
+DSYMUTIL='`$ECHO "$DSYMUTIL" | $SED "$delay_single_quote_subst"`'
+NMEDIT='`$ECHO "$NMEDIT" | $SED "$delay_single_quote_subst"`'
+LIPO='`$ECHO "$LIPO" | $SED "$delay_single_quote_subst"`'
+OTOOL='`$ECHO "$OTOOL" | $SED "$delay_single_quote_subst"`'
+OTOOL64='`$ECHO "$OTOOL64" | $SED "$delay_single_quote_subst"`'
+libext='`$ECHO "$libext" | $SED "$delay_single_quote_subst"`'
+shrext_cmds='`$ECHO "$shrext_cmds" | $SED "$delay_single_quote_subst"`'
+extract_expsyms_cmds='`$ECHO "$extract_expsyms_cmds" | $SED "$delay_single_quote_subst"`'
+archive_cmds_need_lc='`$ECHO "$archive_cmds_need_lc" | $SED "$delay_single_quote_subst"`'
+enable_shared_with_static_runtimes='`$ECHO "$enable_shared_with_static_runtimes" | $SED "$delay_single_quote_subst"`'
+export_dynamic_flag_spec='`$ECHO "$export_dynamic_flag_spec" | $SED "$delay_single_quote_subst"`'
+whole_archive_flag_spec='`$ECHO "$whole_archive_flag_spec" | $SED "$delay_single_quote_subst"`'
+compiler_needs_object='`$ECHO "$compiler_needs_object" | $SED "$delay_single_quote_subst"`'
+old_archive_from_new_cmds='`$ECHO "$old_archive_from_new_cmds" | $SED "$delay_single_quote_subst"`'
+old_archive_from_expsyms_cmds='`$ECHO "$old_archive_from_expsyms_cmds" | $SED "$delay_single_quote_subst"`'
+archive_cmds='`$ECHO "$archive_cmds" | $SED "$delay_single_quote_subst"`'
+archive_expsym_cmds='`$ECHO "$archive_expsym_cmds" | $SED "$delay_single_quote_subst"`'
+module_cmds='`$ECHO "$module_cmds" | $SED "$delay_single_quote_subst"`'
+module_expsym_cmds='`$ECHO "$module_expsym_cmds" | $SED "$delay_single_quote_subst"`'
+with_gnu_ld='`$ECHO "$with_gnu_ld" | $SED "$delay_single_quote_subst"`'
+allow_undefined_flag='`$ECHO "$allow_undefined_flag" | $SED "$delay_single_quote_subst"`'
+no_undefined_flag='`$ECHO "$no_undefined_flag" | $SED "$delay_single_quote_subst"`'
+hardcode_libdir_flag_spec='`$ECHO "$hardcode_libdir_flag_spec" | $SED "$delay_single_quote_subst"`'
+hardcode_libdir_separator='`$ECHO "$hardcode_libdir_separator" | $SED "$delay_single_quote_subst"`'
+hardcode_direct='`$ECHO "$hardcode_direct" | $SED "$delay_single_quote_subst"`'
+hardcode_direct_absolute='`$ECHO "$hardcode_direct_absolute" | $SED "$delay_single_quote_subst"`'
+hardcode_minus_L='`$ECHO "$hardcode_minus_L" | $SED "$delay_single_quote_subst"`'
+hardcode_shlibpath_var='`$ECHO "$hardcode_shlibpath_var" | $SED "$delay_single_quote_subst"`'
+hardcode_automatic='`$ECHO "$hardcode_automatic" | $SED "$delay_single_quote_subst"`'
+inherit_rpath='`$ECHO "$inherit_rpath" | $SED "$delay_single_quote_subst"`'
+link_all_deplibs='`$ECHO "$link_all_deplibs" | $SED "$delay_single_quote_subst"`'
+always_export_symbols='`$ECHO "$always_export_symbols" | $SED "$delay_single_quote_subst"`'
+export_symbols_cmds='`$ECHO "$export_symbols_cmds" | $SED "$delay_single_quote_subst"`'
+exclude_expsyms='`$ECHO "$exclude_expsyms" | $SED "$delay_single_quote_subst"`'
+include_expsyms='`$ECHO "$include_expsyms" | $SED "$delay_single_quote_subst"`'
+prelink_cmds='`$ECHO "$prelink_cmds" | $SED "$delay_single_quote_subst"`'
+postlink_cmds='`$ECHO "$postlink_cmds" | $SED "$delay_single_quote_subst"`'
+file_list_spec='`$ECHO "$file_list_spec" | $SED "$delay_single_quote_subst"`'
+variables_saved_for_relink='`$ECHO "$variables_saved_for_relink" | $SED "$delay_single_quote_subst"`'
+need_lib_prefix='`$ECHO "$need_lib_prefix" | $SED "$delay_single_quote_subst"`'
+need_version='`$ECHO "$need_version" | $SED "$delay_single_quote_subst"`'
+version_type='`$ECHO "$version_type" | $SED "$delay_single_quote_subst"`'
+runpath_var='`$ECHO "$runpath_var" | $SED "$delay_single_quote_subst"`'
+shlibpath_var='`$ECHO "$shlibpath_var" | $SED "$delay_single_quote_subst"`'
+shlibpath_overrides_runpath='`$ECHO "$shlibpath_overrides_runpath" | $SED "$delay_single_quote_subst"`'
+libname_spec='`$ECHO "$libname_spec" | $SED "$delay_single_quote_subst"`'
+library_names_spec='`$ECHO "$library_names_spec" | $SED "$delay_single_quote_subst"`'
+soname_spec='`$ECHO "$soname_spec" | $SED "$delay_single_quote_subst"`'
+install_override_mode='`$ECHO "$install_override_mode" | $SED "$delay_single_quote_subst"`'
+postinstall_cmds='`$ECHO "$postinstall_cmds" | $SED "$delay_single_quote_subst"`'
+postuninstall_cmds='`$ECHO "$postuninstall_cmds" | $SED "$delay_single_quote_subst"`'
+finish_cmds='`$ECHO "$finish_cmds" | $SED "$delay_single_quote_subst"`'
+finish_eval='`$ECHO "$finish_eval" | $SED "$delay_single_quote_subst"`'
+hardcode_into_libs='`$ECHO "$hardcode_into_libs" | $SED "$delay_single_quote_subst"`'
+sys_lib_search_path_spec='`$ECHO "$sys_lib_search_path_spec" | $SED "$delay_single_quote_subst"`'
+configure_time_dlsearch_path='`$ECHO "$configure_time_dlsearch_path" | $SED "$delay_single_quote_subst"`'
+configure_time_lt_sys_library_path='`$ECHO "$configure_time_lt_sys_library_path" | $SED "$delay_single_quote_subst"`'
+hardcode_action='`$ECHO "$hardcode_action" | $SED "$delay_single_quote_subst"`'
+enable_dlopen='`$ECHO "$enable_dlopen" | $SED "$delay_single_quote_subst"`'
+enable_dlopen_self='`$ECHO "$enable_dlopen_self" | $SED "$delay_single_quote_subst"`'
+enable_dlopen_self_static='`$ECHO "$enable_dlopen_self_static" | $SED "$delay_single_quote_subst"`'
+old_striplib='`$ECHO "$old_striplib" | $SED "$delay_single_quote_subst"`'
+striplib='`$ECHO "$striplib" | $SED "$delay_single_quote_subst"`'
+LD_RC='`$ECHO "$LD_RC" | $SED "$delay_single_quote_subst"`'
+reload_flag_RC='`$ECHO "$reload_flag_RC" | $SED "$delay_single_quote_subst"`'
+reload_cmds_RC='`$ECHO "$reload_cmds_RC" | $SED "$delay_single_quote_subst"`'
+old_archive_cmds_RC='`$ECHO "$old_archive_cmds_RC" | $SED "$delay_single_quote_subst"`'
+compiler_RC='`$ECHO "$compiler_RC" | $SED "$delay_single_quote_subst"`'
+GCC_RC='`$ECHO "$GCC_RC" | $SED "$delay_single_quote_subst"`'
+lt_prog_compiler_no_builtin_flag_RC='`$ECHO "$lt_prog_compiler_no_builtin_flag_RC" | $SED "$delay_single_quote_subst"`'
+lt_prog_compiler_pic_RC='`$ECHO "$lt_prog_compiler_pic_RC" | $SED "$delay_single_quote_subst"`'
+lt_prog_compiler_wl_RC='`$ECHO "$lt_prog_compiler_wl_RC" | $SED "$delay_single_quote_subst"`'
+lt_prog_compiler_static_RC='`$ECHO "$lt_prog_compiler_static_RC" | $SED "$delay_single_quote_subst"`'
+lt_cv_prog_compiler_c_o_RC='`$ECHO "$lt_cv_prog_compiler_c_o_RC" | $SED "$delay_single_quote_subst"`'
+archive_cmds_need_lc_RC='`$ECHO "$archive_cmds_need_lc_RC" | $SED "$delay_single_quote_subst"`'
+enable_shared_with_static_runtimes_RC='`$ECHO "$enable_shared_with_static_runtimes_RC" | $SED "$delay_single_quote_subst"`'
+export_dynamic_flag_spec_RC='`$ECHO "$export_dynamic_flag_spec_RC" | $SED "$delay_single_quote_subst"`'
+whole_archive_flag_spec_RC='`$ECHO "$whole_archive_flag_spec_RC" | $SED "$delay_single_quote_subst"`'
+compiler_needs_object_RC='`$ECHO "$compiler_needs_object_RC" | $SED "$delay_single_quote_subst"`'
+old_archive_from_new_cmds_RC='`$ECHO "$old_archive_from_new_cmds_RC" | $SED "$delay_single_quote_subst"`'
+old_archive_from_expsyms_cmds_RC='`$ECHO "$old_archive_from_expsyms_cmds_RC" | $SED "$delay_single_quote_subst"`'
+archive_cmds_RC='`$ECHO "$archive_cmds_RC" | $SED "$delay_single_quote_subst"`'
+archive_expsym_cmds_RC='`$ECHO "$archive_expsym_cmds_RC" | $SED "$delay_single_quote_subst"`'
+module_cmds_RC='`$ECHO "$module_cmds_RC" | $SED "$delay_single_quote_subst"`'
+module_expsym_cmds_RC='`$ECHO "$module_expsym_cmds_RC" | $SED "$delay_single_quote_subst"`'
+with_gnu_ld_RC='`$ECHO "$with_gnu_ld_RC" | $SED "$delay_single_quote_subst"`'
+allow_undefined_flag_RC='`$ECHO "$allow_undefined_flag_RC" | $SED "$delay_single_quote_subst"`'
+no_undefined_flag_RC='`$ECHO "$no_undefined_flag_RC" | $SED "$delay_single_quote_subst"`'
+hardcode_libdir_flag_spec_RC='`$ECHO "$hardcode_libdir_flag_spec_RC" | $SED "$delay_single_quote_subst"`'
+hardcode_libdir_separator_RC='`$ECHO "$hardcode_libdir_separator_RC" | $SED "$delay_single_quote_subst"`'
+hardcode_direct_RC='`$ECHO "$hardcode_direct_RC" | $SED "$delay_single_quote_subst"`'
+hardcode_direct_absolute_RC='`$ECHO "$hardcode_direct_absolute_RC" | $SED "$delay_single_quote_subst"`'
+hardcode_minus_L_RC='`$ECHO "$hardcode_minus_L_RC" | $SED "$delay_single_quote_subst"`'
+hardcode_shlibpath_var_RC='`$ECHO "$hardcode_shlibpath_var_RC" | $SED "$delay_single_quote_subst"`'
+hardcode_automatic_RC='`$ECHO "$hardcode_automatic_RC" | $SED "$delay_single_quote_subst"`'
+inherit_rpath_RC='`$ECHO "$inherit_rpath_RC" | $SED "$delay_single_quote_subst"`'
+link_all_deplibs_RC='`$ECHO "$link_all_deplibs_RC" | $SED "$delay_single_quote_subst"`'
+always_export_symbols_RC='`$ECHO "$always_export_symbols_RC" | $SED "$delay_single_quote_subst"`'
+export_symbols_cmds_RC='`$ECHO "$export_symbols_cmds_RC" | $SED "$delay_single_quote_subst"`'
+exclude_expsyms_RC='`$ECHO "$exclude_expsyms_RC" | $SED "$delay_single_quote_subst"`'
+include_expsyms_RC='`$ECHO "$include_expsyms_RC" | $SED "$delay_single_quote_subst"`'
+prelink_cmds_RC='`$ECHO "$prelink_cmds_RC" | $SED "$delay_single_quote_subst"`'
+postlink_cmds_RC='`$ECHO "$postlink_cmds_RC" | $SED "$delay_single_quote_subst"`'
+file_list_spec_RC='`$ECHO "$file_list_spec_RC" | $SED "$delay_single_quote_subst"`'
+hardcode_action_RC='`$ECHO "$hardcode_action_RC" | $SED "$delay_single_quote_subst"`'
+
+LTCC='$LTCC'
+LTCFLAGS='$LTCFLAGS'
+compiler='$compiler_DEFAULT'
+
+# A function that is used when there is no print builtin or printf.
+func_fallback_echo ()
+{
+  eval 'cat <<_LTECHO_EOF
+\$1
+_LTECHO_EOF'
+}
+
+# Quote evaled strings.
+for var in AS \
+DLLTOOL \
+OBJDUMP \
+SHELL \
+ECHO \
+PATH_SEPARATOR \
+SED \
+GREP \
+EGREP \
+FGREP \
+LD \
+NM \
+LN_S \
+lt_SP2NL \
+lt_NL2SP \
+reload_flag \
+deplibs_check_method \
+file_magic_cmd \
+file_magic_glob \
+want_nocaseglob \
+sharedlib_from_linklib_cmd \
+AR \
+AR_FLAGS \
+archiver_list_spec \
+STRIP \
+RANLIB \
+CC \
+CFLAGS \
+compiler \
+lt_cv_sys_global_symbol_pipe \
+lt_cv_sys_global_symbol_to_cdecl \
+lt_cv_sys_global_symbol_to_import \
+lt_cv_sys_global_symbol_to_c_name_address \
+lt_cv_sys_global_symbol_to_c_name_address_lib_prefix \
+lt_cv_nm_interface \
+nm_file_list_spec \
+lt_cv_truncate_bin \
+lt_prog_compiler_no_builtin_flag \
+lt_prog_compiler_pic \
+lt_prog_compiler_wl \
+lt_prog_compiler_static \
+lt_cv_prog_compiler_c_o \
+need_locks \
+MANIFEST_TOOL \
+DSYMUTIL \
+NMEDIT \
+LIPO \
+OTOOL \
+OTOOL64 \
+shrext_cmds \
+export_dynamic_flag_spec \
+whole_archive_flag_spec \
+compiler_needs_object \
+with_gnu_ld \
+allow_undefined_flag \
+no_undefined_flag \
+hardcode_libdir_flag_spec \
+hardcode_libdir_separator \
+exclude_expsyms \
+include_expsyms \
+file_list_spec \
+variables_saved_for_relink \
+libname_spec \
+library_names_spec \
+soname_spec \
+install_override_mode \
+finish_eval \
+old_striplib \
+striplib \
+LD_RC \
+reload_flag_RC \
+compiler_RC \
+lt_prog_compiler_no_builtin_flag_RC \
+lt_prog_compiler_pic_RC \
+lt_prog_compiler_wl_RC \
+lt_prog_compiler_static_RC \
+lt_cv_prog_compiler_c_o_RC \
+export_dynamic_flag_spec_RC \
+whole_archive_flag_spec_RC \
+compiler_needs_object_RC \
+with_gnu_ld_RC \
+allow_undefined_flag_RC \
+no_undefined_flag_RC \
+hardcode_libdir_flag_spec_RC \
+hardcode_libdir_separator_RC \
+exclude_expsyms_RC \
+include_expsyms_RC \
+file_list_spec_RC; do
+    case \`eval \\\\\$ECHO \\\\""\\\\\$\$var"\\\\"\` in
+    *[\\\\\\\`\\"\\\$]*)
+      eval "lt_\$var=\\\\\\"\\\`\\\$ECHO \\"\\\$\$var\\" | \\\$SED \\"\\\$sed_quote_subst\\"\\\`\\\\\\"" ## exclude from sc_prohibit_nested_quotes
+      ;;
+    *)
+      eval "lt_\$var=\\\\\\"\\\$\$var\\\\\\""
+      ;;
+    esac
+done
+
+# Double-quote double-evaled strings.
+for var in reload_cmds \
+old_postinstall_cmds \
+old_postuninstall_cmds \
+old_archive_cmds \
+extract_expsyms_cmds \
+old_archive_from_new_cmds \
+old_archive_from_expsyms_cmds \
+archive_cmds \
+archive_expsym_cmds \
+module_cmds \
+module_expsym_cmds \
+export_symbols_cmds \
+prelink_cmds \
+postlink_cmds \
+postinstall_cmds \
+postuninstall_cmds \
+finish_cmds \
+sys_lib_search_path_spec \
+configure_time_dlsearch_path \
+configure_time_lt_sys_library_path \
+reload_cmds_RC \
+old_archive_cmds_RC \
+old_archive_from_new_cmds_RC \
+old_archive_from_expsyms_cmds_RC \
+archive_cmds_RC \
+archive_expsym_cmds_RC \
+module_cmds_RC \
+module_expsym_cmds_RC \
+export_symbols_cmds_RC \
+prelink_cmds_RC \
+postlink_cmds_RC; do
+    case \`eval \\\\\$ECHO \\\\""\\\\\$\$var"\\\\"\` in
+    *[\\\\\\\`\\"\\\$]*)
+      eval "lt_\$var=\\\\\\"\\\`\\\$ECHO \\"\\\$\$var\\" | \\\$SED -e \\"\\\$double_quote_subst\\" -e \\"\\\$sed_quote_subst\\" -e \\"\\\$delay_variable_subst\\"\\\`\\\\\\"" ## exclude from sc_prohibit_nested_quotes
+      ;;
+    *)
+      eval "lt_\$var=\\\\\\"\\\$\$var\\\\\\""
+      ;;
+    esac
+done
+
+ac_aux_dir='$ac_aux_dir'
+
+# See if we are running on zsh, and set the options that allow our
+# commands through without removal of \ escapes INIT.
+if test -n "\${ZSH_VERSION+set}"; then
+   setopt NO_GLOB_SUBST
+fi
+
+
+    PACKAGE='$PACKAGE'
+    VERSION='$VERSION'
+    RM='$RM'
+    ofile='$ofile'
+
+
+
+
+
+
+_ACEOF
+
+cat >>$CONFIG_STATUS <<\_ACEOF || ac_write_fail=1
+
+# Handling of arguments.
+for ac_config_target in $ac_config_targets
+do
+  case $ac_config_target in
+    "config.h") CONFIG_HEADERS="$CONFIG_HEADERS config.h" ;;
+    "include/openvpn-plugin.h") CONFIG_HEADERS="$CONFIG_HEADERS include/openvpn-plugin.h" ;;
+    "depfiles") CONFIG_COMMANDS="$CONFIG_COMMANDS depfiles" ;;
+    "libtool") CONFIG_COMMANDS="$CONFIG_COMMANDS libtool" ;;
+    "version.sh") CONFIG_FILES="$CONFIG_FILES version.sh" ;;
+    "Makefile") CONFIG_FILES="$CONFIG_FILES Makefile" ;;
+    "build/Makefile") CONFIG_FILES="$CONFIG_FILES build/Makefile" ;;
+    "build/msvc/Makefile") CONFIG_FILES="$CONFIG_FILES build/msvc/Makefile" ;;
+    "build/msvc/msvc-generate/Makefile") CONFIG_FILES="$CONFIG_FILES build/msvc/msvc-generate/Makefile" ;;
+    "distro/Makefile") CONFIG_FILES="$CONFIG_FILES distro/Makefile" ;;
+    "distro/systemd/Makefile") CONFIG_FILES="$CONFIG_FILES distro/systemd/Makefile" ;;
+    "doc/Makefile") CONFIG_FILES="$CONFIG_FILES doc/Makefile" ;;
+    "doc/doxygen/Makefile") CONFIG_FILES="$CONFIG_FILES doc/doxygen/Makefile" ;;
+    "doc/doxygen/openvpn.doxyfile") CONFIG_FILES="$CONFIG_FILES doc/doxygen/openvpn.doxyfile" ;;
+    "include/Makefile") CONFIG_FILES="$CONFIG_FILES include/Makefile" ;;
+    "src/Makefile") CONFIG_FILES="$CONFIG_FILES src/Makefile" ;;
+    "src/compat/Makefile") CONFIG_FILES="$CONFIG_FILES src/compat/Makefile" ;;
+    "src/openvpn/Makefile") CONFIG_FILES="$CONFIG_FILES src/openvpn/Makefile" ;;
+    "src/openvpnmsica/Makefile") CONFIG_FILES="$CONFIG_FILES src/openvpnmsica/Makefile" ;;
+    "src/openvpnserv/Makefile") CONFIG_FILES="$CONFIG_FILES src/openvpnserv/Makefile" ;;
+    "src/plugins/Makefile") CONFIG_FILES="$CONFIG_FILES src/plugins/Makefile" ;;
+    "src/plugins/auth-pam/Makefile") CONFIG_FILES="$CONFIG_FILES src/plugins/auth-pam/Makefile" ;;
+    "src/plugins/down-root/Makefile") CONFIG_FILES="$CONFIG_FILES src/plugins/down-root/Makefile" ;;
+    "src/tapctl/Makefile") CONFIG_FILES="$CONFIG_FILES src/tapctl/Makefile" ;;
+    "tests/Makefile") CONFIG_FILES="$CONFIG_FILES tests/Makefile" ;;
+    "tests/unit_tests/Makefile") CONFIG_FILES="$CONFIG_FILES tests/unit_tests/Makefile" ;;
+    "tests/unit_tests/example_test/Makefile") CONFIG_FILES="$CONFIG_FILES tests/unit_tests/example_test/Makefile" ;;
+    "tests/unit_tests/openvpn/Makefile") CONFIG_FILES="$CONFIG_FILES tests/unit_tests/openvpn/Makefile" ;;
+    "tests/unit_tests/plugins/Makefile") CONFIG_FILES="$CONFIG_FILES tests/unit_tests/plugins/Makefile" ;;
+    "tests/unit_tests/plugins/auth-pam/Makefile") CONFIG_FILES="$CONFIG_FILES tests/unit_tests/plugins/auth-pam/Makefile" ;;
+    "tests/unit_tests/engine-key/Makefile") CONFIG_FILES="$CONFIG_FILES tests/unit_tests/engine-key/Makefile" ;;
+    "sample/Makefile") CONFIG_FILES="$CONFIG_FILES sample/Makefile" ;;
+    "tests/t_client.sh") CONFIG_FILES="$CONFIG_FILES tests/t_client.sh" ;;
+
+  *) as_fn_error $? "invalid argument: \`$ac_config_target'" "$LINENO" 5;;
+  esac
+done
+
+
+# If the user did not use the arguments to specify the items to instantiate,
+# then the envvar interface is used.  Set only those that are not.
+# We use the long form for the default assignment because of an extremely
+# bizarre bug on SunOS 4.1.3.
+if $ac_need_defaults; then
+  test "${CONFIG_FILES+set}" = set || CONFIG_FILES=$config_files
+  test "${CONFIG_HEADERS+set}" = set || CONFIG_HEADERS=$config_headers
+  test "${CONFIG_COMMANDS+set}" = set || CONFIG_COMMANDS=$config_commands
+fi
+
+# Have a temporary directory for convenience.  Make it in the build tree
+# simply because there is no reason against having it here, and in addition,
+# creating and moving files from /tmp can sometimes cause problems.
+# Hook for its removal unless debugging.
+# Note that there is a small window in which the directory will not be cleaned:
+# after its creation but before its name has been assigned to `$tmp'.
+$debug ||
+{
+  tmp= ac_tmp=
+  trap 'exit_status=$?
+  : "${ac_tmp:=$tmp}"
+  { test ! -d "$ac_tmp" || rm -fr "$ac_tmp"; } && exit $exit_status
+' 0
+  trap 'as_fn_exit 1' 1 2 13 15
+}
+# Create a (secure) tmp directory for tmp files.
+
+{
+  tmp=`(umask 077 && mktemp -d "./confXXXXXX") 2>/dev/null` &&
+  test -d "$tmp"
+}  ||
+{
+  tmp=./conf$$-$RANDOM
+  (umask 077 && mkdir "$tmp")
+} || as_fn_error $? "cannot create a temporary directory in ." "$LINENO" 5
+ac_tmp=$tmp
+
+# Set up the scripts for CONFIG_FILES section.
+# No need to generate them if there are no CONFIG_FILES.
+# This happens for instance with `./config.status config.h'.
+if test -n "$CONFIG_FILES"; then
+
+
+ac_cr=`echo X | tr X '\015'`
+# On cygwin, bash can eat \r inside `` if the user requested igncr.
+# But we know of no other shell where ac_cr would be empty at this
+# point, so we can use a bashism as a fallback.
+if test "x$ac_cr" = x; then
+  eval ac_cr=\$\'\\r\'
+fi
+ac_cs_awk_cr=`$AWK 'BEGIN { print "a\rb" }' </dev/null 2>/dev/null`
+if test "$ac_cs_awk_cr" = "a${ac_cr}b"; then
+  ac_cs_awk_cr='\\r'
+else
+  ac_cs_awk_cr=$ac_cr
+fi
+
+echo 'BEGIN {' >"$ac_tmp/subs1.awk" &&
+_ACEOF
+
+
+{
+  echo "cat >conf$$subs.awk <<_ACEOF" &&
+  echo "$ac_subst_vars" | sed 's/.*/&!$&$ac_delim/' &&
+  echo "_ACEOF"
+} >conf$$subs.sh ||
+  as_fn_error $? "could not make $CONFIG_STATUS" "$LINENO" 5
+ac_delim_num=`echo "$ac_subst_vars" | grep -c '^'`
+ac_delim='%!_!# '
+for ac_last_try in false false false false false :; do
+  . ./conf$$subs.sh ||
+    as_fn_error $? "could not make $CONFIG_STATUS" "$LINENO" 5
+
+  ac_delim_n=`sed -n "s/.*$ac_delim\$/X/p" conf$$subs.awk | grep -c X`
+  if test $ac_delim_n = $ac_delim_num; then
+    break
+  elif $ac_last_try; then
+    as_fn_error $? "could not make $CONFIG_STATUS" "$LINENO" 5
+  else
+    ac_delim="$ac_delim!$ac_delim _$ac_delim!! "
+  fi
+done
+rm -f conf$$subs.sh
+
+cat >>$CONFIG_STATUS <<_ACEOF || ac_write_fail=1
+cat >>"\$ac_tmp/subs1.awk" <<\\_ACAWK &&
+_ACEOF
+sed -n '
+h
+s/^/S["/; s/!.*/"]=/
+p
+g
+s/^[^!]*!//
+:repl
+t repl
+s/'"$ac_delim"'$//
+t delim
+:nl
+h
+s/\(.\{148\}\)..*/\1/
+t more1
+s/["\\]/\\&/g; s/^/"/; s/$/\\n"\\/
+p
+n
+b repl
+:more1
+s/["\\]/\\&/g; s/^/"/; s/$/"\\/
+p
+g
+s/.\{148\}//
+t nl
+:delim
+h
+s/\(.\{148\}\)..*/\1/
+t more2
+s/["\\]/\\&/g; s/^/"/; s/$/"/
+p
+b
+:more2
+s/["\\]/\\&/g; s/^/"/; s/$/"\\/
+p
+g
+s/.\{148\}//
+t delim
+' <conf$$subs.awk | sed '
+/^[^""]/{
+  N
+  s/\n//
+}
+' >>$CONFIG_STATUS || ac_write_fail=1
+rm -f conf$$subs.awk
+cat >>$CONFIG_STATUS <<_ACEOF || ac_write_fail=1
+_ACAWK
+cat >>"\$ac_tmp/subs1.awk" <<_ACAWK &&
+  for (key in S) S_is_set[key] = 1
+  FS = ""
+
+}
+{
+  line = $ 0
+  nfields = split(line, field, "@")
+  substed = 0
+  len = length(field[1])
+  for (i = 2; i < nfields; i++) {
+    key = field[i]
+    keylen = length(key)
+    if (S_is_set[key]) {
+      value = S[key]
+      line = substr(line, 1, len) "" value "" substr(line, len + keylen + 3)
+      len += length(value) + length(field[++i])
+      substed = 1
+    } else
+      len += 1 + keylen
+  }
+
+  print line
+}
+
+_ACAWK
+_ACEOF
+cat >>$CONFIG_STATUS <<\_ACEOF || ac_write_fail=1
+if sed "s/$ac_cr//" < /dev/null > /dev/null 2>&1; then
+  sed "s/$ac_cr\$//; s/$ac_cr/$ac_cs_awk_cr/g"
+else
+  cat
+fi < "$ac_tmp/subs1.awk" > "$ac_tmp/subs.awk" \
+  || as_fn_error $? "could not setup config files machinery" "$LINENO" 5
+_ACEOF
+
+# VPATH may cause trouble with some makes, so we remove sole $(srcdir),
+# ${srcdir} and @srcdir@ entries from VPATH if srcdir is ".", strip leading and
+# trailing colons and then remove the whole line if VPATH becomes empty
+# (actually we leave an empty line to preserve line numbers).
+if test "x$srcdir" = x.; then
+  ac_vpsub='/^[	 ]*VPATH[	 ]*=[	 ]*/{
+h
+s///
+s/^/:/
+s/[	 ]*$/:/
+s/:\$(srcdir):/:/g
+s/:\${srcdir}:/:/g
+s/:@srcdir@:/:/g
+s/^:*//
+s/:*$//
+x
+s/\(=[	 ]*\).*/\1/
+G
+s/\n//
+s/^[^=]*=[	 ]*$//
+}'
+fi
+
+cat >>$CONFIG_STATUS <<\_ACEOF || ac_write_fail=1
+fi # test -n "$CONFIG_FILES"
+
+# Set up the scripts for CONFIG_HEADERS section.
+# No need to generate them if there are no CONFIG_HEADERS.
+# This happens for instance with `./config.status Makefile'.
+if test -n "$CONFIG_HEADERS"; then
+cat >"$ac_tmp/defines.awk" <<\_ACAWK ||
+BEGIN {
+_ACEOF
+
+# Transform confdefs.h into an awk script `defines.awk', embedded as
+# here-document in config.status, that substitutes the proper values into
+# config.h.in to produce config.h.
+
+# Create a delimiter string that does not exist in confdefs.h, to ease
+# handling of long lines.
+ac_delim='%!_!# '
+for ac_last_try in false false :; do
+  ac_tt=`sed -n "/$ac_delim/p" confdefs.h`
+  if test -z "$ac_tt"; then
+    break
+  elif $ac_last_try; then
+    as_fn_error $? "could not make $CONFIG_HEADERS" "$LINENO" 5
+  else
+    ac_delim="$ac_delim!$ac_delim _$ac_delim!! "
+  fi
+done
+
+# For the awk script, D is an array of macro values keyed by name,
+# likewise P contains macro parameters if any.  Preserve backslash
+# newline sequences.
+
+ac_word_re=[_$as_cr_Letters][_$as_cr_alnum]*
+sed -n '
+s/.\{148\}/&'"$ac_delim"'/g
+t rset
+:rset
+s/^[	 ]*#[	 ]*define[	 ][	 ]*/ /
+t def
+d
+:def
+s/\\$//
+t bsnl
+s/["\\]/\\&/g
+s/^ \('"$ac_word_re"'\)\(([^()]*)\)[	 ]*\(.*\)/P["\1"]="\2"\
+D["\1"]=" \3"/p
+s/^ \('"$ac_word_re"'\)[	 ]*\(.*\)/D["\1"]=" \2"/p
+d
+:bsnl
+s/["\\]/\\&/g
+s/^ \('"$ac_word_re"'\)\(([^()]*)\)[	 ]*\(.*\)/P["\1"]="\2"\
+D["\1"]=" \3\\\\\\n"\\/p
+t cont
+s/^ \('"$ac_word_re"'\)[	 ]*\(.*\)/D["\1"]=" \2\\\\\\n"\\/p
+t cont
+d
+:cont
+n
+s/.\{148\}/&'"$ac_delim"'/g
+t clear
+:clear
+s/\\$//
+t bsnlc
+s/["\\]/\\&/g; s/^/"/; s/$/"/p
+d
+:bsnlc
+s/["\\]/\\&/g; s/^/"/; s/$/\\\\\\n"\\/p
+b cont
+' <confdefs.h | sed '
+s/'"$ac_delim"'/"\\\
+"/g' >>$CONFIG_STATUS || ac_write_fail=1
+
+cat >>$CONFIG_STATUS <<_ACEOF || ac_write_fail=1
+  for (key in D) D_is_set[key] = 1
+  FS = ""
+}
+/^[\t ]*#[\t ]*(define|undef)[\t ]+$ac_word_re([\t (]|\$)/ {
+  line = \$ 0
+  split(line, arg, " ")
+  if (arg[1] == "#") {
+    defundef = arg[2]
+    mac1 = arg[3]
+  } else {
+    defundef = substr(arg[1], 2)
+    mac1 = arg[2]
+  }
+  split(mac1, mac2, "(") #)
+  macro = mac2[1]
+  prefix = substr(line, 1, index(line, defundef) - 1)
+  if (D_is_set[macro]) {
+    # Preserve the white space surrounding the "#".
+    print prefix "define", macro P[macro] D[macro]
+    next
+  } else {
+    # Replace #undef with comments.  This is necessary, for example,
+    # in the case of _POSIX_SOURCE, which is predefined and required
+    # on some systems where configure will not decide to define it.
+    if (defundef == "undef") {
+      print "/*", prefix defundef, macro, "*/"
+      next
+    }
+  }
+}
+{ print }
+_ACAWK
+_ACEOF
+cat >>$CONFIG_STATUS <<\_ACEOF || ac_write_fail=1
+  as_fn_error $? "could not setup config headers machinery" "$LINENO" 5
+fi # test -n "$CONFIG_HEADERS"
+
+
+eval set X "  :F $CONFIG_FILES  :H $CONFIG_HEADERS    :C $CONFIG_COMMANDS"
+shift
+for ac_tag
+do
+  case $ac_tag in
+  :[FHLC]) ac_mode=$ac_tag; continue;;
+  esac
+  case $ac_mode$ac_tag in
+  :[FHL]*:*);;
+  :L* | :C*:*) as_fn_error $? "invalid tag \`$ac_tag'" "$LINENO" 5;;
+  :[FH]-) ac_tag=-:-;;
+  :[FH]*) ac_tag=$ac_tag:$ac_tag.in;;
+  esac
+  ac_save_IFS=$IFS
+  IFS=:
+  set x $ac_tag
+  IFS=$ac_save_IFS
+  shift
+  ac_file=$1
+  shift
+
+  case $ac_mode in
+  :L) ac_source=$1;;
+  :[FH])
+    ac_file_inputs=
+    for ac_f
+    do
+      case $ac_f in
+      -) ac_f="$ac_tmp/stdin";;
+      *) # Look for the file first in the build tree, then in the source tree
+	 # (if the path is not absolute).  The absolute path cannot be DOS-style,
+	 # because $ac_f cannot contain `:'.
+	 test -f "$ac_f" ||
+	   case $ac_f in
+	   [\\/$]*) false;;
+	   *) test -f "$srcdir/$ac_f" && ac_f="$srcdir/$ac_f";;
+	   esac ||
+	   as_fn_error 1 "cannot find input file: \`$ac_f'" "$LINENO" 5;;
+      esac
+      case $ac_f in *\'*) ac_f=`$as_echo "$ac_f" | sed "s/'/'\\\\\\\\''/g"`;; esac
+      as_fn_append ac_file_inputs " '$ac_f'"
+    done
+
+    # Let's still pretend it is `configure' which instantiates (i.e., don't
+    # use $as_me), people would be surprised to read:
+    #    /* config.h.  Generated by config.status.  */
+    configure_input='Generated from '`
+	  $as_echo "$*" | sed 's|^[^:]*/||;s|:[^:]*/|, |g'
+	`' by configure.'
+    if test x"$ac_file" != x-; then
+      configure_input="$ac_file.  $configure_input"
+      { $as_echo "$as_me:${as_lineno-$LINENO}: creating $ac_file" >&5
+$as_echo "$as_me: creating $ac_file" >&6;}
+    fi
+    # Neutralize special characters interpreted by sed in replacement strings.
+    case $configure_input in #(
+    *\&* | *\|* | *\\* )
+       ac_sed_conf_input=`$as_echo "$configure_input" |
+       sed 's/[\\\\&|]/\\\\&/g'`;; #(
+    *) ac_sed_conf_input=$configure_input;;
+    esac
+
+    case $ac_tag in
+    *:-:* | *:-) cat >"$ac_tmp/stdin" \
+      || as_fn_error $? "could not create $ac_file" "$LINENO" 5 ;;
+    esac
+    ;;
+  esac
+
+  ac_dir=`$as_dirname -- "$ac_file" ||
+$as_expr X"$ac_file" : 'X\(.*[^/]\)//*[^/][^/]*/*$' \| \
+	 X"$ac_file" : 'X\(//\)[^/]' \| \
+	 X"$ac_file" : 'X\(//\)$' \| \
+	 X"$ac_file" : 'X\(/\)' \| . 2>/dev/null ||
+$as_echo X"$ac_file" |
+    sed '/^X\(.*[^/]\)\/\/*[^/][^/]*\/*$/{
+	    s//\1/
+	    q
+	  }
+	  /^X\(\/\/\)[^/].*/{
+	    s//\1/
+	    q
+	  }
+	  /^X\(\/\/\)$/{
+	    s//\1/
+	    q
+	  }
+	  /^X\(\/\).*/{
+	    s//\1/
+	    q
+	  }
+	  s/.*/./; q'`
+  as_dir="$ac_dir"; as_fn_mkdir_p
+  ac_builddir=.
+
+case "$ac_dir" in
+.) ac_dir_suffix= ac_top_builddir_sub=. ac_top_build_prefix= ;;
+*)
+  ac_dir_suffix=/`$as_echo "$ac_dir" | sed 's|^\.[\\/]||'`
+  # A ".." for each directory in $ac_dir_suffix.
+  ac_top_builddir_sub=`$as_echo "$ac_dir_suffix" | sed 's|/[^\\/]*|/..|g;s|/||'`
+  case $ac_top_builddir_sub in
+  "") ac_top_builddir_sub=. ac_top_build_prefix= ;;
+  *)  ac_top_build_prefix=$ac_top_builddir_sub/ ;;
+  esac ;;
+esac
+ac_abs_top_builddir=$ac_pwd
+ac_abs_builddir=$ac_pwd$ac_dir_suffix
+# for backward compatibility:
+ac_top_builddir=$ac_top_build_prefix
+
+case $srcdir in
+  .)  # We are building in place.
+    ac_srcdir=.
+    ac_top_srcdir=$ac_top_builddir_sub
+    ac_abs_top_srcdir=$ac_pwd ;;
+  [\\/]* | ?:[\\/]* )  # Absolute name.
+    ac_srcdir=$srcdir$ac_dir_suffix;
+    ac_top_srcdir=$srcdir
+    ac_abs_top_srcdir=$srcdir ;;
+  *) # Relative name.
+    ac_srcdir=$ac_top_build_prefix$srcdir$ac_dir_suffix
+    ac_top_srcdir=$ac_top_build_prefix$srcdir
+    ac_abs_top_srcdir=$ac_pwd/$srcdir ;;
+esac
+ac_abs_srcdir=$ac_abs_top_srcdir$ac_dir_suffix
+
+
+  case $ac_mode in
+  :F)
+  #
+  # CONFIG_FILE
+  #
+
+  case $INSTALL in
+  [\\/$]* | ?:[\\/]* ) ac_INSTALL=$INSTALL ;;
+  *) ac_INSTALL=$ac_top_build_prefix$INSTALL ;;
+  esac
+  ac_MKDIR_P=$MKDIR_P
+  case $MKDIR_P in
+  [\\/$]* | ?:[\\/]* ) ;;
+  */*) ac_MKDIR_P=$ac_top_build_prefix$MKDIR_P ;;
+  esac
+_ACEOF
+
+cat >>$CONFIG_STATUS <<\_ACEOF || ac_write_fail=1
+# If the template does not know about datarootdir, expand it.
+# FIXME: This hack should be removed a few years after 2.60.
+ac_datarootdir_hack=; ac_datarootdir_seen=
+ac_sed_dataroot='
+/datarootdir/ {
+  p
+  q
+}
+/@datadir@/p
+/@docdir@/p
+/@infodir@/p
+/@localedir@/p
+/@mandir@/p'
+case `eval "sed -n \"\$ac_sed_dataroot\" $ac_file_inputs"` in
+*datarootdir*) ac_datarootdir_seen=yes;;
+*@datadir@*|*@docdir@*|*@infodir@*|*@localedir@*|*@mandir@*)
+  { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: $ac_file_inputs seems to ignore the --datarootdir setting" >&5
+$as_echo "$as_me: WARNING: $ac_file_inputs seems to ignore the --datarootdir setting" >&2;}
+_ACEOF
+cat >>$CONFIG_STATUS <<_ACEOF || ac_write_fail=1
+  ac_datarootdir_hack='
+  s&@datadir@&$datadir&g
+  s&@docdir@&$docdir&g
+  s&@infodir@&$infodir&g
+  s&@localedir@&$localedir&g
+  s&@mandir@&$mandir&g
+  s&\\\${datarootdir}&$datarootdir&g' ;;
+esac
+_ACEOF
+
+# Neutralize VPATH when `$srcdir' = `.'.
+# Shell code in configure.ac might set extrasub.
+# FIXME: do we really want to maintain this feature?
+cat >>$CONFIG_STATUS <<_ACEOF || ac_write_fail=1
+ac_sed_extra="$ac_vpsub
+$extrasub
+_ACEOF
+cat >>$CONFIG_STATUS <<\_ACEOF || ac_write_fail=1
+:t
+/@[a-zA-Z_][a-zA-Z_0-9]*@/!b
+s|@configure_input@|$ac_sed_conf_input|;t t
+s&@top_builddir@&$ac_top_builddir_sub&;t t
+s&@top_build_prefix@&$ac_top_build_prefix&;t t
+s&@srcdir@&$ac_srcdir&;t t
+s&@abs_srcdir@&$ac_abs_srcdir&;t t
+s&@top_srcdir@&$ac_top_srcdir&;t t
+s&@abs_top_srcdir@&$ac_abs_top_srcdir&;t t
+s&@builddir@&$ac_builddir&;t t
+s&@abs_builddir@&$ac_abs_builddir&;t t
+s&@abs_top_builddir@&$ac_abs_top_builddir&;t t
+s&@INSTALL@&$ac_INSTALL&;t t
+s&@MKDIR_P@&$ac_MKDIR_P&;t t
+$ac_datarootdir_hack
+"
+eval sed \"\$ac_sed_extra\" "$ac_file_inputs" | $AWK -f "$ac_tmp/subs.awk" \
+  >$ac_tmp/out || as_fn_error $? "could not create $ac_file" "$LINENO" 5
+
+test -z "$ac_datarootdir_hack$ac_datarootdir_seen" &&
+  { ac_out=`sed -n '/\${datarootdir}/p' "$ac_tmp/out"`; test -n "$ac_out"; } &&
+  { ac_out=`sed -n '/^[	 ]*datarootdir[	 ]*:*=/p' \
+      "$ac_tmp/out"`; test -z "$ac_out"; } &&
+  { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: $ac_file contains a reference to the variable \`datarootdir'
+which seems to be undefined.  Please make sure it is defined" >&5
+$as_echo "$as_me: WARNING: $ac_file contains a reference to the variable \`datarootdir'
+which seems to be undefined.  Please make sure it is defined" >&2;}
+
+  rm -f "$ac_tmp/stdin"
+  case $ac_file in
+  -) cat "$ac_tmp/out" && rm -f "$ac_tmp/out";;
+  *) rm -f "$ac_file" && mv "$ac_tmp/out" "$ac_file";;
+  esac \
+  || as_fn_error $? "could not create $ac_file" "$LINENO" 5
+ ;;
+  :H)
+  #
+  # CONFIG_HEADER
+  #
+  if test x"$ac_file" != x-; then
+    {
+      $as_echo "/* $configure_input  */" \
+      && eval '$AWK -f "$ac_tmp/defines.awk"' "$ac_file_inputs"
+    } >"$ac_tmp/config.h" \
+      || as_fn_error $? "could not create $ac_file" "$LINENO" 5
+    if diff "$ac_file" "$ac_tmp/config.h" >/dev/null 2>&1; then
+      { $as_echo "$as_me:${as_lineno-$LINENO}: $ac_file is unchanged" >&5
+$as_echo "$as_me: $ac_file is unchanged" >&6;}
+    else
+      rm -f "$ac_file"
+      mv "$ac_tmp/config.h" "$ac_file" \
+	|| as_fn_error $? "could not create $ac_file" "$LINENO" 5
+    fi
+  else
+    $as_echo "/* $configure_input  */" \
+      && eval '$AWK -f "$ac_tmp/defines.awk"' "$ac_file_inputs" \
+      || as_fn_error $? "could not create -" "$LINENO" 5
+  fi
+# Compute "$ac_file"'s index in $config_headers.
+_am_arg="$ac_file"
+_am_stamp_count=1
+for _am_header in $config_headers :; do
+  case $_am_header in
+    $_am_arg | $_am_arg:* )
+      break ;;
+    * )
+      _am_stamp_count=`expr $_am_stamp_count + 1` ;;
+  esac
+done
+echo "timestamp for $_am_arg" >`$as_dirname -- "$_am_arg" ||
+$as_expr X"$_am_arg" : 'X\(.*[^/]\)//*[^/][^/]*/*$' \| \
+	 X"$_am_arg" : 'X\(//\)[^/]' \| \
+	 X"$_am_arg" : 'X\(//\)$' \| \
+	 X"$_am_arg" : 'X\(/\)' \| . 2>/dev/null ||
+$as_echo X"$_am_arg" |
+    sed '/^X\(.*[^/]\)\/\/*[^/][^/]*\/*$/{
+	    s//\1/
+	    q
+	  }
+	  /^X\(\/\/\)[^/].*/{
+	    s//\1/
+	    q
+	  }
+	  /^X\(\/\/\)$/{
+	    s//\1/
+	    q
+	  }
+	  /^X\(\/\).*/{
+	    s//\1/
+	    q
+	  }
+	  s/.*/./; q'`/stamp-h$_am_stamp_count
+ ;;
+
+  :C)  { $as_echo "$as_me:${as_lineno-$LINENO}: executing $ac_file commands" >&5
+$as_echo "$as_me: executing $ac_file commands" >&6;}
+ ;;
+  esac
+
+
+  case $ac_file$ac_mode in
+    "depfiles":C) test x"$AMDEP_TRUE" != x"" || {
+  # Older Autoconf quotes --file arguments for eval, but not when files
+  # are listed without --file.  Let's play safe and only enable the eval
+  # if we detect the quoting.
+  # TODO: see whether this extra hack can be removed once we start
+  # requiring Autoconf 2.70 or later.
+  case $CONFIG_FILES in #(
+  *\'*) :
+    eval set x "$CONFIG_FILES" ;; #(
+  *) :
+    set x $CONFIG_FILES ;; #(
+  *) :
+     ;;
+esac
+  shift
+  # Used to flag and report bootstrapping failures.
+  am_rc=0
+  for am_mf
+  do
+    # Strip MF so we end up with the name of the file.
+    am_mf=`$as_echo "$am_mf" | sed -e 's/:.*$//'`
+    # Check whether this is an Automake generated Makefile which includes
+    # dependency-tracking related rules and includes.
+    # Grep'ing the whole file directly is not great: AIX grep has a line
+    # limit of 2048, but all sed's we know have understand at least 4000.
+    sed -n 's,^am--depfiles:.*,X,p' "$am_mf" | grep X >/dev/null 2>&1 \
+      || continue
+    am_dirpart=`$as_dirname -- "$am_mf" ||
+$as_expr X"$am_mf" : 'X\(.*[^/]\)//*[^/][^/]*/*$' \| \
+	 X"$am_mf" : 'X\(//\)[^/]' \| \
+	 X"$am_mf" : 'X\(//\)$' \| \
+	 X"$am_mf" : 'X\(/\)' \| . 2>/dev/null ||
+$as_echo X"$am_mf" |
+    sed '/^X\(.*[^/]\)\/\/*[^/][^/]*\/*$/{
+	    s//\1/
+	    q
+	  }
+	  /^X\(\/\/\)[^/].*/{
+	    s//\1/
+	    q
+	  }
+	  /^X\(\/\/\)$/{
+	    s//\1/
+	    q
+	  }
+	  /^X\(\/\).*/{
+	    s//\1/
+	    q
+	  }
+	  s/.*/./; q'`
+    am_filepart=`$as_basename -- "$am_mf" ||
+$as_expr X/"$am_mf" : '.*/\([^/][^/]*\)/*$' \| \
+	 X"$am_mf" : 'X\(//\)$' \| \
+	 X"$am_mf" : 'X\(/\)' \| . 2>/dev/null ||
+$as_echo X/"$am_mf" |
+    sed '/^.*\/\([^/][^/]*\)\/*$/{
+	    s//\1/
+	    q
+	  }
+	  /^X\/\(\/\/\)$/{
+	    s//\1/
+	    q
+	  }
+	  /^X\/\(\/\).*/{
+	    s//\1/
+	    q
+	  }
+	  s/.*/./; q'`
+    { echo "$as_me:$LINENO: cd "$am_dirpart" \
+      && sed -e '/# am--include-marker/d' "$am_filepart" \
+        | $MAKE -f - am--depfiles" >&5
+   (cd "$am_dirpart" \
+      && sed -e '/# am--include-marker/d' "$am_filepart" \
+        | $MAKE -f - am--depfiles) >&5 2>&5
+   ac_status=$?
+   echo "$as_me:$LINENO: \$? = $ac_status" >&5
+   (exit $ac_status); } || am_rc=$?
+  done
+  if test $am_rc -ne 0; then
+    { { $as_echo "$as_me:${as_lineno-$LINENO}: error: in \`$ac_pwd':" >&5
+$as_echo "$as_me: error: in \`$ac_pwd':" >&2;}
+as_fn_error $? "Something went wrong bootstrapping makefile fragments
+    for automatic dependency tracking.  Try re-running configure with the
+    '--disable-dependency-tracking' option to at least be able to build
+    the package (albeit without support for automatic dependency tracking).
+See \`config.log' for more details" "$LINENO" 5; }
+  fi
+  { am_dirpart=; unset am_dirpart;}
+  { am_filepart=; unset am_filepart;}
+  { am_mf=; unset am_mf;}
+  { am_rc=; unset am_rc;}
+  rm -f conftest-deps.mk
+}
+ ;;
+    "libtool":C)
+
+    # See if we are running on zsh, and set the options that allow our
+    # commands through without removal of \ escapes.
+    if test -n "${ZSH_VERSION+set}"; then
+      setopt NO_GLOB_SUBST
+    fi
+
+    cfgfile=${ofile}T
+    trap "$RM \"$cfgfile\"; exit 1" 1 2 15
+    $RM "$cfgfile"
+
+    cat <<_LT_EOF >> "$cfgfile"
+#! $SHELL
+# Generated automatically by $as_me ($PACKAGE) $VERSION
+# Libtool was configured on host `(hostname || uname -n) 2>/dev/null | sed 1q`:
+# NOTE: Changes made to this file will be lost: look at ltmain.sh.
+
+# Provide generalized library-building support services.
+# Written by Gordon Matzigkeit, 1996
+
+# Copyright (C) 2014 Free Software Foundation, Inc.
+# This is free software; see the source for copying conditions.  There is NO
+# warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
+
+# GNU Libtool is free software; you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation; either version 2 of of the License, or
+# (at your option) any later version.
+#
+# As a special exception to the GNU General Public License, if you
+# distribute this file as part of a program or library that is built
+# using GNU Libtool, you may include this file under the  same
+# distribution terms that you use for the rest of that program.
+#
+# GNU Libtool is distributed in the hope that it will be useful, but
+# WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program.  If not, see <http://www.gnu.org/licenses/>.
+
+
+# The names of the tagged configurations supported by this script.
+available_tags='RC '
+
+# Configured defaults for sys_lib_dlsearch_path munging.
+: \${LT_SYS_LIBRARY_PATH="$configure_time_lt_sys_library_path"}
+
+# ### BEGIN LIBTOOL CONFIG
+
+# Which release of libtool.m4 was used?
+macro_version=$macro_version
+macro_revision=$macro_revision
+
+# Assembler program.
+AS=$lt_AS
+
+# DLL creation program.
+DLLTOOL=$lt_DLLTOOL
+
+# Object dumper program.
+OBJDUMP=$lt_OBJDUMP
+
+# Whether or not to build shared libraries.
+build_libtool_libs=$enable_shared
+
+# Whether or not to build static libraries.
+build_old_libs=$enable_static
+
+# What type of objects to build.
+pic_mode=$pic_mode
+
+# Whether or not to optimize for fast installation.
+fast_install=$enable_fast_install
+
+# Shared archive member basename,for filename based shared library versioning on AIX.
+shared_archive_member_spec=$shared_archive_member_spec
+
+# Shell to use when invoking shell scripts.
+SHELL=$lt_SHELL
+
+# An echo program that protects backslashes.
+ECHO=$lt_ECHO
+
+# The PATH separator for the build system.
+PATH_SEPARATOR=$lt_PATH_SEPARATOR
+
+# The host system.
+host_alias=$host_alias
+host=$host
+host_os=$host_os
+
+# The build system.
+build_alias=$build_alias
+build=$build
+build_os=$build_os
+
+# A sed program that does not truncate output.
+SED=$lt_SED
+
+# Sed that helps us avoid accidentally triggering echo(1) options like -n.
+Xsed="\$SED -e 1s/^X//"
+
+# A grep program that handles long lines.
+GREP=$lt_GREP
+
+# An ERE matcher.
+EGREP=$lt_EGREP
+
+# A literal string matcher.
+FGREP=$lt_FGREP
+
+# A BSD- or MS-compatible name lister.
+NM=$lt_NM
+
+# Whether we need soft or hard links.
+LN_S=$lt_LN_S
+
+# What is the maximum length of a command?
+max_cmd_len=$max_cmd_len
+
+# Object file suffix (normally "o").
+objext=$ac_objext
+
+# Executable file suffix (normally "").
+exeext=$exeext
+
+# whether the shell understands "unset".
+lt_unset=$lt_unset
+
+# turn spaces into newlines.
+SP2NL=$lt_lt_SP2NL
+
+# turn newlines into spaces.
+NL2SP=$lt_lt_NL2SP
+
+# convert \$build file names to \$host format.
+to_host_file_cmd=$lt_cv_to_host_file_cmd
+
+# convert \$build files to toolchain format.
+to_tool_file_cmd=$lt_cv_to_tool_file_cmd
+
+# Method to check whether dependent libraries are shared objects.
+deplibs_check_method=$lt_deplibs_check_method
+
+# Command to use when deplibs_check_method = "file_magic".
+file_magic_cmd=$lt_file_magic_cmd
+
+# How to find potential files when deplibs_check_method = "file_magic".
+file_magic_glob=$lt_file_magic_glob
+
+# Find potential files using nocaseglob when deplibs_check_method = "file_magic".
+want_nocaseglob=$lt_want_nocaseglob
+
+# Command to associate shared and link libraries.
+sharedlib_from_linklib_cmd=$lt_sharedlib_from_linklib_cmd
+
+# The archiver.
+AR=$lt_AR
+
+# Flags to create an archive.
+AR_FLAGS=$lt_AR_FLAGS
+
+# How to feed a file listing to the archiver.
+archiver_list_spec=$lt_archiver_list_spec
+
+# A symbol stripping program.
+STRIP=$lt_STRIP
+
+# Commands used to install an old-style archive.
+RANLIB=$lt_RANLIB
+old_postinstall_cmds=$lt_old_postinstall_cmds
+old_postuninstall_cmds=$lt_old_postuninstall_cmds
+
+# Whether to use a lock for old archive extraction.
+lock_old_archive_extraction=$lock_old_archive_extraction
+
+# A C compiler.
+LTCC=$lt_CC
+
+# LTCC compiler flags.
+LTCFLAGS=$lt_CFLAGS
+
+# Take the output of nm and produce a listing of raw symbols and C names.
+global_symbol_pipe=$lt_lt_cv_sys_global_symbol_pipe
+
+# Transform the output of nm in a proper C declaration.
+global_symbol_to_cdecl=$lt_lt_cv_sys_global_symbol_to_cdecl
+
+# Transform the output of nm into a list of symbols to manually relocate.
+global_symbol_to_import=$lt_lt_cv_sys_global_symbol_to_import
+
+# Transform the output of nm in a C name address pair.
+global_symbol_to_c_name_address=$lt_lt_cv_sys_global_symbol_to_c_name_address
+
+# Transform the output of nm in a C name address pair when lib prefix is needed.
+global_symbol_to_c_name_address_lib_prefix=$lt_lt_cv_sys_global_symbol_to_c_name_address_lib_prefix
+
+# The name lister interface.
+nm_interface=$lt_lt_cv_nm_interface
+
+# Specify filename containing input files for \$NM.
+nm_file_list_spec=$lt_nm_file_list_spec
+
+# The root where to search for dependent libraries,and where our libraries should be installed.
+lt_sysroot=$lt_sysroot
+
+# Command to truncate a binary pipe.
+lt_truncate_bin=$lt_lt_cv_truncate_bin
+
+# The name of the directory that contains temporary libtool files.
+objdir=$objdir
+
+# Used to examine libraries when file_magic_cmd begins with "file".
+MAGIC_CMD=$MAGIC_CMD
+
+# Must we lock files when doing compilation?
+need_locks=$lt_need_locks
+
+# Manifest tool.
+MANIFEST_TOOL=$lt_MANIFEST_TOOL
+
+# Tool to manipulate archived DWARF debug symbol files on Mac OS X.
+DSYMUTIL=$lt_DSYMUTIL
+
+# Tool to change global to local symbols on Mac OS X.
+NMEDIT=$lt_NMEDIT
+
+# Tool to manipulate fat objects and archives on Mac OS X.
+LIPO=$lt_LIPO
+
+# ldd/readelf like tool for Mach-O binaries on Mac OS X.
+OTOOL=$lt_OTOOL
+
+# ldd/readelf like tool for 64 bit Mach-O binaries on Mac OS X 10.4.
+OTOOL64=$lt_OTOOL64
+
+# Old archive suffix (normally "a").
+libext=$libext
+
+# Shared library suffix (normally ".so").
+shrext_cmds=$lt_shrext_cmds
+
+# The commands to extract the exported symbol list from a shared archive.
+extract_expsyms_cmds=$lt_extract_expsyms_cmds
+
+# Variables whose values should be saved in libtool wrapper scripts and
+# restored at link time.
+variables_saved_for_relink=$lt_variables_saved_for_relink
+
+# Do we need the "lib" prefix for modules?
+need_lib_prefix=$need_lib_prefix
+
+# Do we need a version for libraries?
+need_version=$need_version
+
+# Library versioning type.
+version_type=$version_type
+
+# Shared library runtime path variable.
+runpath_var=$runpath_var
+
+# Shared library path variable.
+shlibpath_var=$shlibpath_var
+
+# Is shlibpath searched before the hard-coded library search path?
+shlibpath_overrides_runpath=$shlibpath_overrides_runpath
+
+# Format of library name prefix.
+libname_spec=$lt_libname_spec
+
+# List of archive names.  First name is the real one, the rest are links.
+# The last name is the one that the linker finds with -lNAME
+library_names_spec=$lt_library_names_spec
+
+# The coded name of the library, if different from the real name.
+soname_spec=$lt_soname_spec
+
+# Permission mode override for installation of shared libraries.
+install_override_mode=$lt_install_override_mode
+
+# Command to use after installation of a shared archive.
+postinstall_cmds=$lt_postinstall_cmds
+
+# Command to use after uninstallation of a shared archive.
+postuninstall_cmds=$lt_postuninstall_cmds
+
+# Commands used to finish a libtool library installation in a directory.
+finish_cmds=$lt_finish_cmds
+
+# As "finish_cmds", except a single script fragment to be evaled but
+# not shown.
+finish_eval=$lt_finish_eval
+
+# Whether we should hardcode library paths into libraries.
+hardcode_into_libs=$hardcode_into_libs
+
+# Compile-time system search path for libraries.
+sys_lib_search_path_spec=$lt_sys_lib_search_path_spec
+
+# Detected run-time system search path for libraries.
+sys_lib_dlsearch_path_spec=$lt_configure_time_dlsearch_path
+
+# Explicit LT_SYS_LIBRARY_PATH set during ./configure time.
+configure_time_lt_sys_library_path=$lt_configure_time_lt_sys_library_path
+
+# Whether dlopen is supported.
+dlopen_support=$enable_dlopen
+
+# Whether dlopen of programs is supported.
+dlopen_self=$enable_dlopen_self
+
+# Whether dlopen of statically linked programs is supported.
+dlopen_self_static=$enable_dlopen_self_static
+
+# Commands to strip libraries.
+old_striplib=$lt_old_striplib
+striplib=$lt_striplib
+
+
+# The linker used to build libraries.
+LD=$lt_LD
+
+# How to create reloadable object files.
+reload_flag=$lt_reload_flag
+reload_cmds=$lt_reload_cmds
+
+# Commands used to build an old-style archive.
+old_archive_cmds=$lt_old_archive_cmds
+
+# A language specific compiler.
+CC=$lt_compiler
+
+# Is the compiler the GNU compiler?
+with_gcc=$GCC
+
+# Compiler flag to turn off builtin functions.
+no_builtin_flag=$lt_lt_prog_compiler_no_builtin_flag
+
+# Additional compiler flags for building library objects.
+pic_flag=$lt_lt_prog_compiler_pic
+
+# How to pass a linker flag through the compiler.
+wl=$lt_lt_prog_compiler_wl
+
+# Compiler flag to prevent dynamic linking.
+link_static_flag=$lt_lt_prog_compiler_static
+
+# Does compiler simultaneously support -c and -o options?
+compiler_c_o=$lt_lt_cv_prog_compiler_c_o
+
+# Whether or not to add -lc for building shared libraries.
+build_libtool_need_lc=$archive_cmds_need_lc
+
+# Whether or not to disallow shared libs when runtime libs are static.
+allow_libtool_libs_with_static_runtimes=$enable_shared_with_static_runtimes
+
+# Compiler flag to allow reflexive dlopens.
+export_dynamic_flag_spec=$lt_export_dynamic_flag_spec
+
+# Compiler flag to generate shared objects directly from archives.
+whole_archive_flag_spec=$lt_whole_archive_flag_spec
+
+# Whether the compiler copes with passing no objects directly.
+compiler_needs_object=$lt_compiler_needs_object
+
+# Create an old-style archive from a shared archive.
+old_archive_from_new_cmds=$lt_old_archive_from_new_cmds
+
+# Create a temporary old-style archive to link instead of a shared archive.
+old_archive_from_expsyms_cmds=$lt_old_archive_from_expsyms_cmds
+
+# Commands used to build a shared archive.
+archive_cmds=$lt_archive_cmds
+archive_expsym_cmds=$lt_archive_expsym_cmds
+
+# Commands used to build a loadable module if different from building
+# a shared archive.
+module_cmds=$lt_module_cmds
+module_expsym_cmds=$lt_module_expsym_cmds
+
+# Whether we are building with GNU ld or not.
+with_gnu_ld=$lt_with_gnu_ld
+
+# Flag that allows shared libraries with undefined symbols to be built.
+allow_undefined_flag=$lt_allow_undefined_flag
+
+# Flag that enforces no undefined symbols.
+no_undefined_flag=$lt_no_undefined_flag
+
+# Flag to hardcode \$libdir into a binary during linking.
+# This must work even if \$libdir does not exist
+hardcode_libdir_flag_spec=$lt_hardcode_libdir_flag_spec
+
+# Whether we need a single "-rpath" flag with a separated argument.
+hardcode_libdir_separator=$lt_hardcode_libdir_separator
+
+# Set to "yes" if using DIR/libNAME\$shared_ext during linking hardcodes
+# DIR into the resulting binary.
+hardcode_direct=$hardcode_direct
+
+# Set to "yes" if using DIR/libNAME\$shared_ext during linking hardcodes
+# DIR into the resulting binary and the resulting library dependency is
+# "absolute",i.e impossible to change by setting \$shlibpath_var if the
+# library is relocated.
+hardcode_direct_absolute=$hardcode_direct_absolute
+
+# Set to "yes" if using the -LDIR flag during linking hardcodes DIR
+# into the resulting binary.
+hardcode_minus_L=$hardcode_minus_L
+
+# Set to "yes" if using SHLIBPATH_VAR=DIR during linking hardcodes DIR
+# into the resulting binary.
+hardcode_shlibpath_var=$hardcode_shlibpath_var
+
+# Set to "yes" if building a shared library automatically hardcodes DIR
+# into the library and all subsequent libraries and executables linked
+# against it.
+hardcode_automatic=$hardcode_automatic
+
+# Set to yes if linker adds runtime paths of dependent libraries
+# to runtime path list.
+inherit_rpath=$inherit_rpath
+
+# Whether libtool must link a program against all its dependency libraries.
+link_all_deplibs=$link_all_deplibs
+
+# Set to "yes" if exported symbols are required.
+always_export_symbols=$always_export_symbols
+
+# The commands to list exported symbols.
+export_symbols_cmds=$lt_export_symbols_cmds
+
+# Symbols that should not be listed in the preloaded symbols.
+exclude_expsyms=$lt_exclude_expsyms
+
+# Symbols that must always be exported.
+include_expsyms=$lt_include_expsyms
+
+# Commands necessary for linking programs (against libraries) with templates.
+prelink_cmds=$lt_prelink_cmds
+
+# Commands necessary for finishing linking programs.
+postlink_cmds=$lt_postlink_cmds
+
+# Specify filename containing input files.
+file_list_spec=$lt_file_list_spec
+
+# How to hardcode a shared library path into an executable.
+hardcode_action=$hardcode_action
+
+# ### END LIBTOOL CONFIG
+
+_LT_EOF
+
+    cat <<'_LT_EOF' >> "$cfgfile"
+
+# ### BEGIN FUNCTIONS SHARED WITH CONFIGURE
+
+# func_munge_path_list VARIABLE PATH
+# -----------------------------------
+# VARIABLE is name of variable containing _space_ separated list of
+# directories to be munged by the contents of PATH, which is string
+# having a format:
+# "DIR[:DIR]:"
+#       string "DIR[ DIR]" will be prepended to VARIABLE
+# ":DIR[:DIR]"
+#       string "DIR[ DIR]" will be appended to VARIABLE
+# "DIRP[:DIRP]::[DIRA:]DIRA"
+#       string "DIRP[ DIRP]" will be prepended to VARIABLE and string
+#       "DIRA[ DIRA]" will be appended to VARIABLE
+# "DIR[:DIR]"
+#       VARIABLE will be replaced by "DIR[ DIR]"
+func_munge_path_list ()
+{
+    case x$2 in
+    x)
+        ;;
+    *:)
+        eval $1=\"`$ECHO $2 | $SED 's/:/ /g'` \$$1\"
+        ;;
+    x:*)
+        eval $1=\"\$$1 `$ECHO $2 | $SED 's/:/ /g'`\"
+        ;;
+    *::*)
+        eval $1=\"\$$1\ `$ECHO $2 | $SED -e 's/.*:://' -e 's/:/ /g'`\"
+        eval $1=\"`$ECHO $2 | $SED -e 's/::.*//' -e 's/:/ /g'`\ \$$1\"
+        ;;
+    *)
+        eval $1=\"`$ECHO $2 | $SED 's/:/ /g'`\"
+        ;;
+    esac
+}
+
+
+# Calculate cc_basename.  Skip known compiler wrappers and cross-prefix.
+func_cc_basename ()
+{
+    for cc_temp in $*""; do
+      case $cc_temp in
+        compile | *[\\/]compile | ccache | *[\\/]ccache ) ;;
+        distcc | *[\\/]distcc | purify | *[\\/]purify ) ;;
+        \-*) ;;
+        *) break;;
+      esac
+    done
+    func_cc_basename_result=`$ECHO "$cc_temp" | $SED "s%.*/%%; s%^$host_alias-%%"`
+}
+
+
+# ### END FUNCTIONS SHARED WITH CONFIGURE
+
+_LT_EOF
+
+  case $host_os in
+  aix3*)
+    cat <<\_LT_EOF >> "$cfgfile"
+# AIX sometimes has problems with the GCC collect2 program.  For some
+# reason, if we set the COLLECT_NAMES environment variable, the problems
+# vanish in a puff of smoke.
+if test set != "${COLLECT_NAMES+set}"; then
+  COLLECT_NAMES=
+  export COLLECT_NAMES
+fi
+_LT_EOF
+    ;;
+  esac
+
+
+ltmain=$ac_aux_dir/ltmain.sh
+
+
+  # We use sed instead of cat because bash on DJGPP gets confused if
+  # if finds mixed CR/LF and LF-only lines.  Since sed operates in
+  # text mode, it properly converts lines to CR/LF.  This bash problem
+  # is reportedly fixed, but why not run on old versions too?
+  sed '$q' "$ltmain" >> "$cfgfile" \
+     || (rm -f "$cfgfile"; exit 1)
+
+   mv -f "$cfgfile" "$ofile" ||
+    (rm -f "$ofile" && cp "$cfgfile" "$ofile" && rm -f "$cfgfile")
+  chmod +x "$ofile"
+
+
+    cat <<_LT_EOF >> "$ofile"
+
+# ### BEGIN LIBTOOL TAG CONFIG: RC
+
+# The linker used to build libraries.
+LD=$lt_LD_RC
+
+# How to create reloadable object files.
+reload_flag=$lt_reload_flag_RC
+reload_cmds=$lt_reload_cmds_RC
+
+# Commands used to build an old-style archive.
+old_archive_cmds=$lt_old_archive_cmds_RC
+
+# A language specific compiler.
+CC=$lt_compiler_RC
+
+# Is the compiler the GNU compiler?
+with_gcc=$GCC_RC
+
+# Compiler flag to turn off builtin functions.
+no_builtin_flag=$lt_lt_prog_compiler_no_builtin_flag_RC
+
+# Additional compiler flags for building library objects.
+pic_flag=$lt_lt_prog_compiler_pic_RC
+
+# How to pass a linker flag through the compiler.
+wl=$lt_lt_prog_compiler_wl_RC
+
+# Compiler flag to prevent dynamic linking.
+link_static_flag=$lt_lt_prog_compiler_static_RC
+
+# Does compiler simultaneously support -c and -o options?
+compiler_c_o=$lt_lt_cv_prog_compiler_c_o_RC
+
+# Whether or not to add -lc for building shared libraries.
+build_libtool_need_lc=$archive_cmds_need_lc_RC
+
+# Whether or not to disallow shared libs when runtime libs are static.
+allow_libtool_libs_with_static_runtimes=$enable_shared_with_static_runtimes_RC
+
+# Compiler flag to allow reflexive dlopens.
+export_dynamic_flag_spec=$lt_export_dynamic_flag_spec_RC
+
+# Compiler flag to generate shared objects directly from archives.
+whole_archive_flag_spec=$lt_whole_archive_flag_spec_RC
+
+# Whether the compiler copes with passing no objects directly.
+compiler_needs_object=$lt_compiler_needs_object_RC
+
+# Create an old-style archive from a shared archive.
+old_archive_from_new_cmds=$lt_old_archive_from_new_cmds_RC
+
+# Create a temporary old-style archive to link instead of a shared archive.
+old_archive_from_expsyms_cmds=$lt_old_archive_from_expsyms_cmds_RC
+
+# Commands used to build a shared archive.
+archive_cmds=$lt_archive_cmds_RC
+archive_expsym_cmds=$lt_archive_expsym_cmds_RC
+
+# Commands used to build a loadable module if different from building
+# a shared archive.
+module_cmds=$lt_module_cmds_RC
+module_expsym_cmds=$lt_module_expsym_cmds_RC
+
+# Whether we are building with GNU ld or not.
+with_gnu_ld=$lt_with_gnu_ld_RC
+
+# Flag that allows shared libraries with undefined symbols to be built.
+allow_undefined_flag=$lt_allow_undefined_flag_RC
+
+# Flag that enforces no undefined symbols.
+no_undefined_flag=$lt_no_undefined_flag_RC
+
+# Flag to hardcode \$libdir into a binary during linking.
+# This must work even if \$libdir does not exist
+hardcode_libdir_flag_spec=$lt_hardcode_libdir_flag_spec_RC
+
+# Whether we need a single "-rpath" flag with a separated argument.
+hardcode_libdir_separator=$lt_hardcode_libdir_separator_RC
+
+# Set to "yes" if using DIR/libNAME\$shared_ext during linking hardcodes
+# DIR into the resulting binary.
+hardcode_direct=$hardcode_direct_RC
+
+# Set to "yes" if using DIR/libNAME\$shared_ext during linking hardcodes
+# DIR into the resulting binary and the resulting library dependency is
+# "absolute",i.e impossible to change by setting \$shlibpath_var if the
+# library is relocated.
+hardcode_direct_absolute=$hardcode_direct_absolute_RC
+
+# Set to "yes" if using the -LDIR flag during linking hardcodes DIR
+# into the resulting binary.
+hardcode_minus_L=$hardcode_minus_L_RC
+
+# Set to "yes" if using SHLIBPATH_VAR=DIR during linking hardcodes DIR
+# into the resulting binary.
+hardcode_shlibpath_var=$hardcode_shlibpath_var_RC
+
+# Set to "yes" if building a shared library automatically hardcodes DIR
+# into the library and all subsequent libraries and executables linked
+# against it.
+hardcode_automatic=$hardcode_automatic_RC
+
+# Set to yes if linker adds runtime paths of dependent libraries
+# to runtime path list.
+inherit_rpath=$inherit_rpath_RC
+
+# Whether libtool must link a program against all its dependency libraries.
+link_all_deplibs=$link_all_deplibs_RC
+
+# Set to "yes" if exported symbols are required.
+always_export_symbols=$always_export_symbols_RC
+
+# The commands to list exported symbols.
+export_symbols_cmds=$lt_export_symbols_cmds_RC
+
+# Symbols that should not be listed in the preloaded symbols.
+exclude_expsyms=$lt_exclude_expsyms_RC
+
+# Symbols that must always be exported.
+include_expsyms=$lt_include_expsyms_RC
+
+# Commands necessary for linking programs (against libraries) with templates.
+prelink_cmds=$lt_prelink_cmds_RC
+
+# Commands necessary for finishing linking programs.
+postlink_cmds=$lt_postlink_cmds_RC
+
+# Specify filename containing input files.
+file_list_spec=$lt_file_list_spec_RC
+
+# How to hardcode a shared library path into an executable.
+hardcode_action=$hardcode_action_RC
+
+# ### END LIBTOOL TAG CONFIG: RC
+_LT_EOF
+
+ ;;
+    "tests/t_client.sh":F) chmod +x tests/t_client.sh ;;
+
+  esac
+done # for ac_tag
+
+
+as_fn_exit 0
+_ACEOF
+ac_clean_files=$ac_clean_files_save
+
+test $ac_write_fail = 0 ||
+  as_fn_error $? "write failure creating $CONFIG_STATUS" "$LINENO" 5
+
+
+# configure is writing to config.log, and then calls config.status.
+# config.status does its own redirection, appending to config.log.
+# Unfortunately, on DOS this fails, as config.log is still kept open
+# by configure, so config.status won't be able to write to it; its
+# output is simply discarded.  So we exec the FD to /dev/null,
+# effectively closing config.log, so it can be properly (re)opened and
+# appended to by config.status.  When coming back to configure, we
+# need to make the FD available again.
+if test "$no_create" != yes; then
+  ac_cs_success=:
+  ac_config_status_args=
+  test "$silent" = yes &&
+    ac_config_status_args="$ac_config_status_args --quiet"
+  exec 5>/dev/null
+  $SHELL $CONFIG_STATUS $ac_config_status_args || ac_cs_success=false
+  exec 5>>config.log
+  # Use ||, not &&, to avoid exiting from the if with $? = 1, which
+  # would make configure fail if this is the last instruction.
+  $ac_cs_success || as_fn_exit 1
+fi
+if test -n "$ac_unrecognized_opts" && test "$enable_option_checking" != no; then
+  { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: unrecognized options: $ac_unrecognized_opts" >&5
+$as_echo "$as_me: WARNING: unrecognized options: $ac_unrecognized_opts" >&2;}
+fi
+
diff --git a/depcomp b/depcomp
new file mode 100755
index 0000000..65cbf70
--- /dev/null
+++ b/depcomp
@@ -0,0 +1,791 @@
+#! /bin/sh
+# depcomp - compile a program generating dependencies as side-effects
+
+scriptversion=2018-03-07.03; # UTC
+
+# Copyright (C) 1999-2018 Free Software Foundation, Inc.
+
+# This program is free software; you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation; either version 2, or (at your option)
+# any later version.
+
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+
+# You should have received a copy of the GNU General Public License
+# along with this program.  If not, see <https://www.gnu.org/licenses/>.
+
+# As a special exception to the GNU General Public License, if you
+# distribute this file as part of a program that contains a
+# configuration script generated by Autoconf, you may include it under
+# the same distribution terms that you use for the rest of that program.
+
+# Originally written by Alexandre Oliva <oliva@dcc.unicamp.br>.
+
+case $1 in
+  '')
+    echo "$0: No command.  Try '$0 --help' for more information." 1>&2
+    exit 1;
+    ;;
+  -h | --h*)
+    cat <<\EOF
+Usage: depcomp [--help] [--version] PROGRAM [ARGS]
+
+Run PROGRAMS ARGS to compile a file, generating dependencies
+as side-effects.
+
+Environment variables:
+  depmode     Dependency tracking mode.
+  source      Source file read by 'PROGRAMS ARGS'.
+  object      Object file output by 'PROGRAMS ARGS'.
+  DEPDIR      directory where to store dependencies.
+  depfile     Dependency file to output.
+  tmpdepfile  Temporary file to use when outputting dependencies.
+  libtool     Whether libtool is used (yes/no).
+
+Report bugs to <bug-automake@gnu.org>.
+EOF
+    exit $?
+    ;;
+  -v | --v*)
+    echo "depcomp $scriptversion"
+    exit $?
+    ;;
+esac
+
+# Get the directory component of the given path, and save it in the
+# global variables '$dir'.  Note that this directory component will
+# be either empty or ending with a '/' character.  This is deliberate.
+set_dir_from ()
+{
+  case $1 in
+    */*) dir=`echo "$1" | sed -e 's|/[^/]*$|/|'`;;
+      *) dir=;;
+  esac
+}
+
+# Get the suffix-stripped basename of the given path, and save it the
+# global variable '$base'.
+set_base_from ()
+{
+  base=`echo "$1" | sed -e 's|^.*/||' -e 's/\.[^.]*$//'`
+}
+
+# If no dependency file was actually created by the compiler invocation,
+# we still have to create a dummy depfile, to avoid errors with the
+# Makefile "include basename.Plo" scheme.
+make_dummy_depfile ()
+{
+  echo "#dummy" > "$depfile"
+}
+
+# Factor out some common post-processing of the generated depfile.
+# Requires the auxiliary global variable '$tmpdepfile' to be set.
+aix_post_process_depfile ()
+{
+  # If the compiler actually managed to produce a dependency file,
+  # post-process it.
+  if test -f "$tmpdepfile"; then
+    # Each line is of the form 'foo.o: dependency.h'.
+    # Do two passes, one to just change these to
+    #   $object: dependency.h
+    # and one to simply output
+    #   dependency.h:
+    # which is needed to avoid the deleted-header problem.
+    { sed -e "s,^.*\.[$lower]*:,$object:," < "$tmpdepfile"
+      sed -e "s,^.*\.[$lower]*:[$tab ]*,," -e 's,$,:,' < "$tmpdepfile"
+    } > "$depfile"
+    rm -f "$tmpdepfile"
+  else
+    make_dummy_depfile
+  fi
+}
+
+# A tabulation character.
+tab='	'
+# A newline character.
+nl='
+'
+# Character ranges might be problematic outside the C locale.
+# These definitions help.
+upper=ABCDEFGHIJKLMNOPQRSTUVWXYZ
+lower=abcdefghijklmnopqrstuvwxyz
+digits=0123456789
+alpha=${upper}${lower}
+
+if test -z "$depmode" || test -z "$source" || test -z "$object"; then
+  echo "depcomp: Variables source, object and depmode must be set" 1>&2
+  exit 1
+fi
+
+# Dependencies for sub/bar.o or sub/bar.obj go into sub/.deps/bar.Po.
+depfile=${depfile-`echo "$object" |
+  sed 's|[^\\/]*$|'${DEPDIR-.deps}'/&|;s|\.\([^.]*\)$|.P\1|;s|Pobj$|Po|'`}
+tmpdepfile=${tmpdepfile-`echo "$depfile" | sed 's/\.\([^.]*\)$/.T\1/'`}
+
+rm -f "$tmpdepfile"
+
+# Avoid interferences from the environment.
+gccflag= dashmflag=
+
+# Some modes work just like other modes, but use different flags.  We
+# parameterize here, but still list the modes in the big case below,
+# to make depend.m4 easier to write.  Note that we *cannot* use a case
+# here, because this file can only contain one case statement.
+if test "$depmode" = hp; then
+  # HP compiler uses -M and no extra arg.
+  gccflag=-M
+  depmode=gcc
+fi
+
+if test "$depmode" = dashXmstdout; then
+  # This is just like dashmstdout with a different argument.
+  dashmflag=-xM
+  depmode=dashmstdout
+fi
+
+cygpath_u="cygpath -u -f -"
+if test "$depmode" = msvcmsys; then
+  # This is just like msvisualcpp but w/o cygpath translation.
+  # Just convert the backslash-escaped backslashes to single forward
+  # slashes to satisfy depend.m4
+  cygpath_u='sed s,\\\\,/,g'
+  depmode=msvisualcpp
+fi
+
+if test "$depmode" = msvc7msys; then
+  # This is just like msvc7 but w/o cygpath translation.
+  # Just convert the backslash-escaped backslashes to single forward
+  # slashes to satisfy depend.m4
+  cygpath_u='sed s,\\\\,/,g'
+  depmode=msvc7
+fi
+
+if test "$depmode" = xlc; then
+  # IBM C/C++ Compilers xlc/xlC can output gcc-like dependency information.
+  gccflag=-qmakedep=gcc,-MF
+  depmode=gcc
+fi
+
+case "$depmode" in
+gcc3)
+## gcc 3 implements dependency tracking that does exactly what
+## we want.  Yay!  Note: for some reason libtool 1.4 doesn't like
+## it if -MD -MP comes after the -MF stuff.  Hmm.
+## Unfortunately, FreeBSD c89 acceptance of flags depends upon
+## the command line argument order; so add the flags where they
+## appear in depend2.am.  Note that the slowdown incurred here
+## affects only configure: in makefiles, %FASTDEP% shortcuts this.
+  for arg
+  do
+    case $arg in
+    -c) set fnord "$@" -MT "$object" -MD -MP -MF "$tmpdepfile" "$arg" ;;
+    *)  set fnord "$@" "$arg" ;;
+    esac
+    shift # fnord
+    shift # $arg
+  done
+  "$@"
+  stat=$?
+  if test $stat -ne 0; then
+    rm -f "$tmpdepfile"
+    exit $stat
+  fi
+  mv "$tmpdepfile" "$depfile"
+  ;;
+
+gcc)
+## Note that this doesn't just cater to obsosete pre-3.x GCC compilers.
+## but also to in-use compilers like IMB xlc/xlC and the HP C compiler.
+## (see the conditional assignment to $gccflag above).
+## There are various ways to get dependency output from gcc.  Here's
+## why we pick this rather obscure method:
+## - Don't want to use -MD because we'd like the dependencies to end
+##   up in a subdir.  Having to rename by hand is ugly.
+##   (We might end up doing this anyway to support other compilers.)
+## - The DEPENDENCIES_OUTPUT environment variable makes gcc act like
+##   -MM, not -M (despite what the docs say).  Also, it might not be
+##   supported by the other compilers which use the 'gcc' depmode.
+## - Using -M directly means running the compiler twice (even worse
+##   than renaming).
+  if test -z "$gccflag"; then
+    gccflag=-MD,
+  fi
+  "$@" -Wp,"$gccflag$tmpdepfile"
+  stat=$?
+  if test $stat -ne 0; then
+    rm -f "$tmpdepfile"
+    exit $stat
+  fi
+  rm -f "$depfile"
+  echo "$object : \\" > "$depfile"
+  # The second -e expression handles DOS-style file names with drive
+  # letters.
+  sed -e 's/^[^:]*: / /' \
+      -e 's/^['$alpha']:\/[^:]*: / /' < "$tmpdepfile" >> "$depfile"
+## This next piece of magic avoids the "deleted header file" problem.
+## The problem is that when a header file which appears in a .P file
+## is deleted, the dependency causes make to die (because there is
+## typically no way to rebuild the header).  We avoid this by adding
+## dummy dependencies for each header file.  Too bad gcc doesn't do
+## this for us directly.
+## Some versions of gcc put a space before the ':'.  On the theory
+## that the space means something, we add a space to the output as
+## well.  hp depmode also adds that space, but also prefixes the VPATH
+## to the object.  Take care to not repeat it in the output.
+## Some versions of the HPUX 10.20 sed can't process this invocation
+## correctly.  Breaking it into two sed invocations is a workaround.
+  tr ' ' "$nl" < "$tmpdepfile" \
+    | sed -e 's/^\\$//' -e '/^$/d' -e "s|.*$object$||" -e '/:$/d' \
+    | sed -e 's/$/ :/' >> "$depfile"
+  rm -f "$tmpdepfile"
+  ;;
+
+hp)
+  # This case exists only to let depend.m4 do its work.  It works by
+  # looking at the text of this script.  This case will never be run,
+  # since it is checked for above.
+  exit 1
+  ;;
+
+sgi)
+  if test "$libtool" = yes; then
+    "$@" "-Wp,-MDupdate,$tmpdepfile"
+  else
+    "$@" -MDupdate "$tmpdepfile"
+  fi
+  stat=$?
+  if test $stat -ne 0; then
+    rm -f "$tmpdepfile"
+    exit $stat
+  fi
+  rm -f "$depfile"
+
+  if test -f "$tmpdepfile"; then  # yes, the sourcefile depend on other files
+    echo "$object : \\" > "$depfile"
+    # Clip off the initial element (the dependent).  Don't try to be
+    # clever and replace this with sed code, as IRIX sed won't handle
+    # lines with more than a fixed number of characters (4096 in
+    # IRIX 6.2 sed, 8192 in IRIX 6.5).  We also remove comment lines;
+    # the IRIX cc adds comments like '#:fec' to the end of the
+    # dependency line.
+    tr ' ' "$nl" < "$tmpdepfile" \
+      | sed -e 's/^.*\.o://' -e 's/#.*$//' -e '/^$/ d' \
+      | tr "$nl" ' ' >> "$depfile"
+    echo >> "$depfile"
+    # The second pass generates a dummy entry for each header file.
+    tr ' ' "$nl" < "$tmpdepfile" \
+      | sed -e 's/^.*\.o://' -e 's/#.*$//' -e '/^$/ d' -e 's/$/:/' \
+      >> "$depfile"
+  else
+    make_dummy_depfile
+  fi
+  rm -f "$tmpdepfile"
+  ;;
+
+xlc)
+  # This case exists only to let depend.m4 do its work.  It works by
+  # looking at the text of this script.  This case will never be run,
+  # since it is checked for above.
+  exit 1
+  ;;
+
+aix)
+  # The C for AIX Compiler uses -M and outputs the dependencies
+  # in a .u file.  In older versions, this file always lives in the
+  # current directory.  Also, the AIX compiler puts '$object:' at the
+  # start of each line; $object doesn't have directory information.
+  # Version 6 uses the directory in both cases.
+  set_dir_from "$object"
+  set_base_from "$object"
+  if test "$libtool" = yes; then
+    tmpdepfile1=$dir$base.u
+    tmpdepfile2=$base.u
+    tmpdepfile3=$dir.libs/$base.u
+    "$@" -Wc,-M
+  else
+    tmpdepfile1=$dir$base.u
+    tmpdepfile2=$dir$base.u
+    tmpdepfile3=$dir$base.u
+    "$@" -M
+  fi
+  stat=$?
+  if test $stat -ne 0; then
+    rm -f "$tmpdepfile1" "$tmpdepfile2" "$tmpdepfile3"
+    exit $stat
+  fi
+
+  for tmpdepfile in "$tmpdepfile1" "$tmpdepfile2" "$tmpdepfile3"
+  do
+    test -f "$tmpdepfile" && break
+  done
+  aix_post_process_depfile
+  ;;
+
+tcc)
+  # tcc (Tiny C Compiler) understand '-MD -MF file' since version 0.9.26
+  # FIXME: That version still under development at the moment of writing.
+  #        Make that this statement remains true also for stable, released
+  #        versions.
+  # It will wrap lines (doesn't matter whether long or short) with a
+  # trailing '\', as in:
+  #
+  #   foo.o : \
+  #    foo.c \
+  #    foo.h \
+  #
+  # It will put a trailing '\' even on the last line, and will use leading
+  # spaces rather than leading tabs (at least since its commit 0394caf7
+  # "Emit spaces for -MD").
+  "$@" -MD -MF "$tmpdepfile"
+  stat=$?
+  if test $stat -ne 0; then
+    rm -f "$tmpdepfile"
+    exit $stat
+  fi
+  rm -f "$depfile"
+  # Each non-empty line is of the form 'foo.o : \' or ' dep.h \'.
+  # We have to change lines of the first kind to '$object: \'.
+  sed -e "s|.*:|$object :|" < "$tmpdepfile" > "$depfile"
+  # And for each line of the second kind, we have to emit a 'dep.h:'
+  # dummy dependency, to avoid the deleted-header problem.
+  sed -n -e 's|^  *\(.*\) *\\$|\1:|p' < "$tmpdepfile" >> "$depfile"
+  rm -f "$tmpdepfile"
+  ;;
+
+## The order of this option in the case statement is important, since the
+## shell code in configure will try each of these formats in the order
+## listed in this file.  A plain '-MD' option would be understood by many
+## compilers, so we must ensure this comes after the gcc and icc options.
+pgcc)
+  # Portland's C compiler understands '-MD'.
+  # Will always output deps to 'file.d' where file is the root name of the
+  # source file under compilation, even if file resides in a subdirectory.
+  # The object file name does not affect the name of the '.d' file.
+  # pgcc 10.2 will output
+  #    foo.o: sub/foo.c sub/foo.h
+  # and will wrap long lines using '\' :
+  #    foo.o: sub/foo.c ... \
+  #     sub/foo.h ... \
+  #     ...
+  set_dir_from "$object"
+  # Use the source, not the object, to determine the base name, since
+  # that's sadly what pgcc will do too.
+  set_base_from "$source"
+  tmpdepfile=$base.d
+
+  # For projects that build the same source file twice into different object
+  # files, the pgcc approach of using the *source* file root name can cause
+  # problems in parallel builds.  Use a locking strategy to avoid stomping on
+  # the same $tmpdepfile.
+  lockdir=$base.d-lock
+  trap "
+    echo '$0: caught signal, cleaning up...' >&2
+    rmdir '$lockdir'
+    exit 1
+  " 1 2 13 15
+  numtries=100
+  i=$numtries
+  while test $i -gt 0; do
+    # mkdir is a portable test-and-set.
+    if mkdir "$lockdir" 2>/dev/null; then
+      # This process acquired the lock.
+      "$@" -MD
+      stat=$?
+      # Release the lock.
+      rmdir "$lockdir"
+      break
+    else
+      # If the lock is being held by a different process, wait
+      # until the winning process is done or we timeout.
+      while test -d "$lockdir" && test $i -gt 0; do
+        sleep 1
+        i=`expr $i - 1`
+      done
+    fi
+    i=`expr $i - 1`
+  done
+  trap - 1 2 13 15
+  if test $i -le 0; then
+    echo "$0: failed to acquire lock after $numtries attempts" >&2
+    echo "$0: check lockdir '$lockdir'" >&2
+    exit 1
+  fi
+
+  if test $stat -ne 0; then
+    rm -f "$tmpdepfile"
+    exit $stat
+  fi
+  rm -f "$depfile"
+  # Each line is of the form `foo.o: dependent.h',
+  # or `foo.o: dep1.h dep2.h \', or ` dep3.h dep4.h \'.
+  # Do two passes, one to just change these to
+  # `$object: dependent.h' and one to simply `dependent.h:'.
+  sed "s,^[^:]*:,$object :," < "$tmpdepfile" > "$depfile"
+  # Some versions of the HPUX 10.20 sed can't process this invocation
+  # correctly.  Breaking it into two sed invocations is a workaround.
+  sed 's,^[^:]*: \(.*\)$,\1,;s/^\\$//;/^$/d;/:$/d' < "$tmpdepfile" \
+    | sed -e 's/$/ :/' >> "$depfile"
+  rm -f "$tmpdepfile"
+  ;;
+
+hp2)
+  # The "hp" stanza above does not work with aCC (C++) and HP's ia64
+  # compilers, which have integrated preprocessors.  The correct option
+  # to use with these is +Maked; it writes dependencies to a file named
+  # 'foo.d', which lands next to the object file, wherever that
+  # happens to be.
+  # Much of this is similar to the tru64 case; see comments there.
+  set_dir_from  "$object"
+  set_base_from "$object"
+  if test "$libtool" = yes; then
+    tmpdepfile1=$dir$base.d
+    tmpdepfile2=$dir.libs/$base.d
+    "$@" -Wc,+Maked
+  else
+    tmpdepfile1=$dir$base.d
+    tmpdepfile2=$dir$base.d
+    "$@" +Maked
+  fi
+  stat=$?
+  if test $stat -ne 0; then
+     rm -f "$tmpdepfile1" "$tmpdepfile2"
+     exit $stat
+  fi
+
+  for tmpdepfile in "$tmpdepfile1" "$tmpdepfile2"
+  do
+    test -f "$tmpdepfile" && break
+  done
+  if test -f "$tmpdepfile"; then
+    sed -e "s,^.*\.[$lower]*:,$object:," "$tmpdepfile" > "$depfile"
+    # Add 'dependent.h:' lines.
+    sed -ne '2,${
+               s/^ *//
+               s/ \\*$//
+               s/$/:/
+               p
+             }' "$tmpdepfile" >> "$depfile"
+  else
+    make_dummy_depfile
+  fi
+  rm -f "$tmpdepfile" "$tmpdepfile2"
+  ;;
+
+tru64)
+  # The Tru64 compiler uses -MD to generate dependencies as a side
+  # effect.  'cc -MD -o foo.o ...' puts the dependencies into 'foo.o.d'.
+  # At least on Alpha/Redhat 6.1, Compaq CCC V6.2-504 seems to put
+  # dependencies in 'foo.d' instead, so we check for that too.
+  # Subdirectories are respected.
+  set_dir_from  "$object"
+  set_base_from "$object"
+
+  if test "$libtool" = yes; then
+    # Libtool generates 2 separate objects for the 2 libraries.  These
+    # two compilations output dependencies in $dir.libs/$base.o.d and
+    # in $dir$base.o.d.  We have to check for both files, because
+    # one of the two compilations can be disabled.  We should prefer
+    # $dir$base.o.d over $dir.libs/$base.o.d because the latter is
+    # automatically cleaned when .libs/ is deleted, while ignoring
+    # the former would cause a distcleancheck panic.
+    tmpdepfile1=$dir$base.o.d          # libtool 1.5
+    tmpdepfile2=$dir.libs/$base.o.d    # Likewise.
+    tmpdepfile3=$dir.libs/$base.d      # Compaq CCC V6.2-504
+    "$@" -Wc,-MD
+  else
+    tmpdepfile1=$dir$base.d
+    tmpdepfile2=$dir$base.d
+    tmpdepfile3=$dir$base.d
+    "$@" -MD
+  fi
+
+  stat=$?
+  if test $stat -ne 0; then
+    rm -f "$tmpdepfile1" "$tmpdepfile2" "$tmpdepfile3"
+    exit $stat
+  fi
+
+  for tmpdepfile in "$tmpdepfile1" "$tmpdepfile2" "$tmpdepfile3"
+  do
+    test -f "$tmpdepfile" && break
+  done
+  # Same post-processing that is required for AIX mode.
+  aix_post_process_depfile
+  ;;
+
+msvc7)
+  if test "$libtool" = yes; then
+    showIncludes=-Wc,-showIncludes
+  else
+    showIncludes=-showIncludes
+  fi
+  "$@" $showIncludes > "$tmpdepfile"
+  stat=$?
+  grep -v '^Note: including file: ' "$tmpdepfile"
+  if test $stat -ne 0; then
+    rm -f "$tmpdepfile"
+    exit $stat
+  fi
+  rm -f "$depfile"
+  echo "$object : \\" > "$depfile"
+  # The first sed program below extracts the file names and escapes
+  # backslashes for cygpath.  The second sed program outputs the file
+  # name when reading, but also accumulates all include files in the
+  # hold buffer in order to output them again at the end.  This only
+  # works with sed implementations that can handle large buffers.
+  sed < "$tmpdepfile" -n '
+/^Note: including file:  *\(.*\)/ {
+  s//\1/
+  s/\\/\\\\/g
+  p
+}' | $cygpath_u | sort -u | sed -n '
+s/ /\\ /g
+s/\(.*\)/'"$tab"'\1 \\/p
+s/.\(.*\) \\/\1:/
+H
+$ {
+  s/.*/'"$tab"'/
+  G
+  p
+}' >> "$depfile"
+  echo >> "$depfile" # make sure the fragment doesn't end with a backslash
+  rm -f "$tmpdepfile"
+  ;;
+
+msvc7msys)
+  # This case exists only to let depend.m4 do its work.  It works by
+  # looking at the text of this script.  This case will never be run,
+  # since it is checked for above.
+  exit 1
+  ;;
+
+#nosideeffect)
+  # This comment above is used by automake to tell side-effect
+  # dependency tracking mechanisms from slower ones.
+
+dashmstdout)
+  # Important note: in order to support this mode, a compiler *must*
+  # always write the preprocessed file to stdout, regardless of -o.
+  "$@" || exit $?
+
+  # Remove the call to Libtool.
+  if test "$libtool" = yes; then
+    while test "X$1" != 'X--mode=compile'; do
+      shift
+    done
+    shift
+  fi
+
+  # Remove '-o $object'.
+  IFS=" "
+  for arg
+  do
+    case $arg in
+    -o)
+      shift
+      ;;
+    $object)
+      shift
+      ;;
+    *)
+      set fnord "$@" "$arg"
+      shift # fnord
+      shift # $arg
+      ;;
+    esac
+  done
+
+  test -z "$dashmflag" && dashmflag=-M
+  # Require at least two characters before searching for ':'
+  # in the target name.  This is to cope with DOS-style filenames:
+  # a dependency such as 'c:/foo/bar' could be seen as target 'c' otherwise.
+  "$@" $dashmflag |
+    sed "s|^[$tab ]*[^:$tab ][^:][^:]*:[$tab ]*|$object: |" > "$tmpdepfile"
+  rm -f "$depfile"
+  cat < "$tmpdepfile" > "$depfile"
+  # Some versions of the HPUX 10.20 sed can't process this sed invocation
+  # correctly.  Breaking it into two sed invocations is a workaround.
+  tr ' ' "$nl" < "$tmpdepfile" \
+    | sed -e 's/^\\$//' -e '/^$/d' -e '/:$/d' \
+    | sed -e 's/$/ :/' >> "$depfile"
+  rm -f "$tmpdepfile"
+  ;;
+
+dashXmstdout)
+  # This case only exists to satisfy depend.m4.  It is never actually
+  # run, as this mode is specially recognized in the preamble.
+  exit 1
+  ;;
+
+makedepend)
+  "$@" || exit $?
+  # Remove any Libtool call
+  if test "$libtool" = yes; then
+    while test "X$1" != 'X--mode=compile'; do
+      shift
+    done
+    shift
+  fi
+  # X makedepend
+  shift
+  cleared=no eat=no
+  for arg
+  do
+    case $cleared in
+    no)
+      set ""; shift
+      cleared=yes ;;
+    esac
+    if test $eat = yes; then
+      eat=no
+      continue
+    fi
+    case "$arg" in
+    -D*|-I*)
+      set fnord "$@" "$arg"; shift ;;
+    # Strip any option that makedepend may not understand.  Remove
+    # the object too, otherwise makedepend will parse it as a source file.
+    -arch)
+      eat=yes ;;
+    -*|$object)
+      ;;
+    *)
+      set fnord "$@" "$arg"; shift ;;
+    esac
+  done
+  obj_suffix=`echo "$object" | sed 's/^.*\././'`
+  touch "$tmpdepfile"
+  ${MAKEDEPEND-makedepend} -o"$obj_suffix" -f"$tmpdepfile" "$@"
+  rm -f "$depfile"
+  # makedepend may prepend the VPATH from the source file name to the object.
+  # No need to regex-escape $object, excess matching of '.' is harmless.
+  sed "s|^.*\($object *:\)|\1|" "$tmpdepfile" > "$depfile"
+  # Some versions of the HPUX 10.20 sed can't process the last invocation
+  # correctly.  Breaking it into two sed invocations is a workaround.
+  sed '1,2d' "$tmpdepfile" \
+    | tr ' ' "$nl" \
+    | sed -e 's/^\\$//' -e '/^$/d' -e '/:$/d' \
+    | sed -e 's/$/ :/' >> "$depfile"
+  rm -f "$tmpdepfile" "$tmpdepfile".bak
+  ;;
+
+cpp)
+  # Important note: in order to support this mode, a compiler *must*
+  # always write the preprocessed file to stdout.
+  "$@" || exit $?
+
+  # Remove the call to Libtool.
+  if test "$libtool" = yes; then
+    while test "X$1" != 'X--mode=compile'; do
+      shift
+    done
+    shift
+  fi
+
+  # Remove '-o $object'.
+  IFS=" "
+  for arg
+  do
+    case $arg in
+    -o)
+      shift
+      ;;
+    $object)
+      shift
+      ;;
+    *)
+      set fnord "$@" "$arg"
+      shift # fnord
+      shift # $arg
+      ;;
+    esac
+  done
+
+  "$@" -E \
+    | sed -n -e '/^# [0-9][0-9]* "\([^"]*\)".*/ s:: \1 \\:p' \
+             -e '/^#line [0-9][0-9]* "\([^"]*\)".*/ s:: \1 \\:p' \
+    | sed '$ s: \\$::' > "$tmpdepfile"
+  rm -f "$depfile"
+  echo "$object : \\" > "$depfile"
+  cat < "$tmpdepfile" >> "$depfile"
+  sed < "$tmpdepfile" '/^$/d;s/^ //;s/ \\$//;s/$/ :/' >> "$depfile"
+  rm -f "$tmpdepfile"
+  ;;
+
+msvisualcpp)
+  # Important note: in order to support this mode, a compiler *must*
+  # always write the preprocessed file to stdout.
+  "$@" || exit $?
+
+  # Remove the call to Libtool.
+  if test "$libtool" = yes; then
+    while test "X$1" != 'X--mode=compile'; do
+      shift
+    done
+    shift
+  fi
+
+  IFS=" "
+  for arg
+  do
+    case "$arg" in
+    -o)
+      shift
+      ;;
+    $object)
+      shift
+      ;;
+    "-Gm"|"/Gm"|"-Gi"|"/Gi"|"-ZI"|"/ZI")
+        set fnord "$@"
+        shift
+        shift
+        ;;
+    *)
+        set fnord "$@" "$arg"
+        shift
+        shift
+        ;;
+    esac
+  done
+  "$@" -E 2>/dev/null |
+  sed -n '/^#line [0-9][0-9]* "\([^"]*\)"/ s::\1:p' | $cygpath_u | sort -u > "$tmpdepfile"
+  rm -f "$depfile"
+  echo "$object : \\" > "$depfile"
+  sed < "$tmpdepfile" -n -e 's% %\\ %g' -e '/^\(.*\)$/ s::'"$tab"'\1 \\:p' >> "$depfile"
+  echo "$tab" >> "$depfile"
+  sed < "$tmpdepfile" -n -e 's% %\\ %g' -e '/^\(.*\)$/ s::\1\::p' >> "$depfile"
+  rm -f "$tmpdepfile"
+  ;;
+
+msvcmsys)
+  # This case exists only to let depend.m4 do its work.  It works by
+  # looking at the text of this script.  This case will never be run,
+  # since it is checked for above.
+  exit 1
+  ;;
+
+none)
+  exec "$@"
+  ;;
+
+*)
+  echo "Unknown depmode $depmode" 1>&2
+  exit 1
+  ;;
+esac
+
+exit 0
+
+# Local Variables:
+# mode: shell-script
+# sh-indentation: 2
+# eval: (add-hook 'before-save-hook 'time-stamp)
+# time-stamp-start: "scriptversion="
+# time-stamp-format: "%:y-%02m-%02d.%02H"
+# time-stamp-time-zone: "UTC0"
+# time-stamp-end: "; # UTC"
+# End:
diff --git a/dev-tools/gen-release-tarballs.sh b/dev-tools/gen-release-tarballs.sh
deleted file mode 100755
index 9c4600e..0000000
--- a/dev-tools/gen-release-tarballs.sh
+++ /dev/null
@@ -1,247 +0,0 @@
-#!/bin/sh
-# gen-release-tarballs.sh  -  Generates release tarballs with signatures
-#
-# Copyright (C) 2017-2018 - David Sommerseth <davids@openvpn.net>
-#
-# This program is free software; you can redistribute it and/or
-# modify it under the terms of the GNU General Public License
-# as published by the Free Software Foundation; either version 2
-# of the License.
-#
-# This program is distributed in the hope that it will be useful,
-# but WITHOUT ANY WARRANTY; without even the implied warranty of
-# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-# GNU General Public License for more details.
-#
-# You should have received a copy of the GNU General Public License
-# along with this program; if not, write to the Free Software
-# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
-#
-set -u
-
-if [ $# -ne 4 ]; then
-    echo "Usage: $0 <remote-name> <tag-name> <sign-key> <dest-dir>"
-    echo ""
-    echo "   remote-name  -- valid remotes: `git remote | tr \\\n ' '`"
-    echo "   tag-name     -- An existing release tag"
-    echo "   sign-key     -- PGP key used to sign all files"
-    echo "   dest-dir     -- Where to put the complete set of release tarballs"
-    echo ""
-    echo "   Example: $0 origin v2.4.2 /tmp/openvpn-release"
-    echo
-    exit 1
-fi
-
-arg_remote_name="$1"
-arg_tag_name="$2"
-arg_sign_key="$3"
-arg_dest_dir="$4"
-
-#
-# Sanity checks
-#
-
-# Check that the tag exists
-git tag | grep "$arg_tag_name" 1>/dev/null
-if [ $? -ne 0 ]; then
-    echo "** ERROR **  The tag '$arg_tag_name' does not exist"
-    exit 2
-fi
-
-# Extract the git URL
-giturl="`git remote get-url $arg_remote_name 2>/dev/null`"
-if [ $? -ne 0 ]; then
-    echo "** ERROR ** Invalid git remote name: $arg_remote_name"
-    exit 2
-fi
-
-# Check we have the needed signing key
-echo "test" | gpg -a --clearsign -u "$arg_sign_key" 2>/dev/null 1>/dev/null
-if [ $? -ne 0 ]; then
-    echo "** ERROR ** Failed when testing the PGP signing.  Wrong signing key?"
-    exit 2;
-fi
-
-
-#
-# Helper functions
-#
-
-get_filename()
-{
-    local wildcard="$1"
-
-    res="`find . -maxdepth 1 -type f -name \"$wildcard\" | head -n1 | cut -d/ -f2-`"
-    if [ $? -ne 0 ]; then
-        echo "-- 'find' failed."
-        exit 5
-    fi
-    if [ -z "$res" ]; then
-        echo "-- Could not find a file with the wildcard: $wildcard"
-        exit 4
-    fi
-    echo "$res"
-}
-
-copy_files()
-{
-    local fileext="$1"
-    local dest="$2"
-
-    file="`get_filename openvpn-*.*.*.$fileext`"
-    if [ -z "$file" ]; then
-        echo "** ERROR Failed to find source file"
-        exit 5
-    fi
-    echo "-- Copying $file"
-    cp "$file" "$dest"
-    if [ $? -ne 0 ]; then
-        echo "** ERROR ** Failed to copy $file to $destdir"
-        exit 3;
-    fi
-}
-
-sign_file()
-{
-    local signkey="$1"
-    local srchfile="$2"
-    local signtype="$3"
-    local file="`get_filename $srchfile`"
-
-    echo "-- Signing $file ..."
-    case "$signtype" in
-        inline)
-            # Have the signature in the same file as the data
-            gpg -a --clearsign -u "$signkey" "$file" 2>/dev/null
-            res=$?
-            if [ $res -eq 0 ]; then
-                rm -f "$file"
-            fi
-            ;;
-
-        detached)
-            # Have the signature in a separate file
-            gpg -a --detach-sign -u "$signkey" "$file" 2>/dev/null
-            res=$?
-            ;;
-
-        *)
-            echo "** ERROR **  Unknown signing type \"$signtype\"."
-            exit 4;
-    esac
-
-    if [ $res -ne 0 ]; then
-        echo "** ERROR **  Failed to sign the file $PWD/$file"
-        exit 4;
-    fi
-}
-
-
-#
-# Preparations
-#
-
-# Create the destination directory, using a sub-dir with the tag-name
-destdir=""
-case "$arg_dest_dir" in
-    /*) # Absolute path
-        destdir="$arg_dest_dir/$arg_tag_name"
-        ;;
-    *)  # Make absolute path from relative path
-        destdir="$PWD/$arg_dest_dir/$arg_tag_name"
-        ;;
-esac
-echo "-- Destination directory: $destdir"
-if [ -e "$destdir" ]; then
-    echo "** ERROR ** Destination directory already exists.  "
-    echo "            Please check your command line carefully."
-    exit 2
-fi
-
-mkdir -p "$destdir"
-if [ $? -ne 0 ]; then
-    echo "** ERROR ** Failed to create destination directory"
-    exit 2
-fi
-
-#
-# Start the release process
-#
-
-# Clone the remote repository
-workdir="`mktemp -d -p /var/tmp openvpn-build-release-XXXXXX`"
-cd $workdir
-echo "-- Working directory: $workdir"
-echo "-- git clone $giturl"
-git clone $giturl openvpn-gen-tarball 2> "$workdir/git-clone.log" 1>&2
-if [ $? -ne 0 ]; then
-    echo "** ERROR **  git clone failed.  See $workdir/git-clone.log for details"
-    exit 3;
-fi
-cd openvpn-gen-tarball
-
-# Check out the proper release tag
-echo "-- Checking out tag $arg_tag_name ... "
-git checkout -b mkrelease "$arg_tag_name" 2> "$workdir/git-checkout-tag.log" 1>&2
-if [ $? -ne 0 ]; then
-    echo "** ERROR **  git checkout failed.  See $workdir/git-checkout-tag.log for details"
-    exit 3;
-fi
-
-# Prepare the source tree
-echo "-- Running autoreconf + a simple configure ... "
-(autoreconf -vi && ./configure) 2> "$workdir/autotools-prep.log" 1>&2
-if [ $? -ne 0 ]; then
-    echo "** ERROR **  Failed running autotools.  See $workdir/autotools-prep.log for details"
-    exit 3;
-fi
-
-# Generate the tar/zip files
-echo "-- Running make distcheck (generates .tar.gz) ... "
-(make distcheck) 2> "$workdir/make-distcheck.log" 1>&2
-if [ $? -ne 0 ]; then
-    echo "** ERROR **  make distcheck failed.  See $workdir/make-distcheck.log for details"
-    exit 3;
-fi
-copy_files tar.gz "$destdir"
-
-echo "-- Running make dist-xz (generates .tar.xz) ... "
-(make dist-xz) 2> "$workdir/make-dist-xz.log" 1>&2
-if [ $? -ne 0 ]; then
-    echo "** ERROR **  make dist-xz failed.  See $workdir/make-dist-xz.log for details"
-    exit 3;
-fi
-copy_files tar.xz "$destdir"
-
-echo "-- Running make dist-zip (generates .zip) ... "
-(make dist-zip) 2> "$workdir/make-dist-zip.log" 1>&2
-if [ $? -ne 0 ]; then
-    echo "** ERROR **  make dist-zip failed.  See $workdir/make-dist-zip.log for details"
-    exit 3;
-fi
-copy_files zip "$destdir"
-
-# Generate SHA256 checksums
-cd "$destdir"
-sha256sum openvpn-*.tar.{gz,xz} openvpn-*.zip > "openvpn-$arg_tag_name.sha256sum"
-
-# Sign all the files
-echo "-- Signing files ... "
-sign_file "$arg_sign_key" "openvpn-$arg_tag_name.sha256sum" inline
-sign_file "$arg_sign_key" "openvpn-*.tar.gz" detached
-sign_file "$arg_sign_key" "openvpn-*.tar.xz" detached
-sign_file "$arg_sign_key" "openvpn-*.zip" detached
-
-# Create a tar-bundle with everything
-echo "-- Creating final tarbundle with everything ..."
-tar cf "openvpn-$arg_tag_name.tar" openvpn-*.{tar.gz,tar.xz,zip}{,.asc} openvpn-*.sha256sum.asc
-
-echo "-- Cleaning up ..."
-# Save the log files
-mkdir -p "$destdir/logs"
-mv $workdir/*.log "$destdir/logs"
-
-# Finally, done!
-rm -rf "$workdir"
-echo "-- Done"
-exit 0
diff --git a/dev-tools/lz4-rebaser.sh b/dev-tools/lz4-rebaser.sh
deleted file mode 100755
index 03debcb..0000000
--- a/dev-tools/lz4-rebaser.sh
+++ /dev/null
@@ -1,68 +0,0 @@
-#!/bin/sh
-# lz4-rebaser.sh   - Does the LZ4 rebase process in an automated fashion
-#
-# Copyright (C) 2017-2018 David Sommerseth <davids@openvpn.net>
-#
-# This program is free software; you can redistribute it and/or
-# modify it under the terms of the GNU General Public License
-# as published by the Free Software Foundation; either version 2
-# of the License.
-#
-# This program is distributed in the hope that it will be useful,
-# but WITHOUT ANY WARRANTY; without even the implied warranty of
-# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-# GNU General Public License for more details.
-#
-# You should have received a copy of the GNU General Public License
-# along with this program; if not, write to the Free Software
-# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
-#
-
-# Basic shell sanity
-set -eu
-
-# Simple argument control
-if [ $# -ne 1 ]; then
-    echo "Usage: $0 <Path to upstream LZ4 source tree>"
-    exit 1
-fi
-
-# Check that we have the files we need before starting the rebase
-LZ4_C="$1/lib/lz4.c"
-LZ4_H="$1/lib/lz4.h"
-if [ ! -r "$LZ4_C" -o ! -r "$LZ4_H" ]; then
-    echo "Could not locate $LZ4_H and/or $LZ4_C"
-    exit 1
-fi
-
-# Extract the upstream LZ4 commit base
-lz4_tag="$(git --git-dir $1/.git tag --contains HEAD)"
-lz4_commit="$(git --git-dir $1/.git rev-parse --short=20 HEAD)"
-
-# Do the rebase
-srcroot="$(git rev-parse --show-toplevel)"
-echo "* Copying upstream lz4.h to compat-lz4.h"
-cp "$LZ4_H" "${srcroot}/src/compat/compat-lz4.h"
-
-echo "* Porting upstream lz4.c to compat-lz4.c"
-{
-    cat <<EOF
-/* This file has been backported by $0
- * from upstream lz4 commit $lz4_commit ($lz4_tag)
- */
-#ifdef HAVE_CONFIG_H
-#include "config.h"
-#elif defined(_MSC_VER)
-#include "config-msvc.h"
-#endif
-
-#ifdef NEED_COMPAT_LZ4
-EOF
-    sed 's/\"lz4\.h\"/\"compat-lz4.h"/' "$LZ4_C"
-cat <<EOF
-#endif /* NEED_COMPAT_LZ4 */
-EOF
-} > "${srcroot}/src/compat/compat-lz4.c"
-
-echo "* Running 'git add'"
-git add src/compat/compat-lz4.[ch]
diff --git a/dev-tools/reformat-all.sh b/dev-tools/reformat-all.sh
deleted file mode 100755
index befc589..0000000
--- a/dev-tools/reformat-all.sh
+++ /dev/null
@@ -1,136 +0,0 @@
-#!/bin/sh
-# reformat-all.sh - Reformat all git files in the checked out
-#                   git branch using uncrustify.
-#
-# Copyright (C) 2016-2018 - David Sommerseth <davids@openvpn.net>
-#
-# This program is free software; you can redistribute it and/or
-# modify it under the terms of the GNU General Public License
-# as published by the Free Software Foundation; either version 2
-# of the License.
-#
-# This program is distributed in the hope that it will be useful,
-# but WITHOUT ANY WARRANTY; without even the implied warranty of
-# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-# GNU General Public License for more details.
-#
-# You should have received a copy of the GNU General Public License
-# along with this program; if not, write to the Free Software
-# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
-#
-
-tstamp="$(date +%Y%m%d-%H%M%S)"
-files="$(pwd)/reformat-all_files-$tstamp.lst"
-log="$(pwd)/reformat-all_log-$tstamp.txt"
-
-srcroot="$(git rev-parse --show-toplevel)"
-cfg="$srcroot/dev-tools/uncrustify.conf"
-specialfiles="$srcroot/dev-tools/special-files.lst"
-
-export gitfiles=0
-export procfiles=0
-
-# Go to the root of the source tree
-cd "$srcroot"
-
-{
-    echo -n "** Starting $0: "
-    date
-
-    # Find all C source/header files
-    git ls-files | grep -E ".*\.[ch](\.in$|$)" > "${files}.git"
-
-    # Manage files which needs special treatment
-    awk -F\# '{gsub("\n| ", "", $1); print $1}' "$specialfiles" > "${files}.sp"
-    while read srcfile
-    do
-        res=$(grep "$srcfile" "${files}.sp" 2>/dev/null)
-        if [ $? -ne 0 ]; then
-            # If grep didn't find the file among special files,
-            # process it normally
-            echo "$srcfile" >> "$files"
-        else
-            mode=$(echo "$res" | cut -d:  -f1)
-            case "$mode" in
-                E)
-                    echo "** INFO **  Excluding '$srcfile'"
-                    ;;
-                P)
-                    echo "** INFO **  Pre-patching '$srcfile'"
-                    patchfile="${srcroot}"/dev-tools/reformat-patches/before_$(echo "$srcfile" | tr "/" "_").patch
-                    if [ -r "$patchfile" ]; then
-                        git apply "$patchfile"
-                        if [ $? -ne 0 ]; then
-                            echo "** ERROR **  Failed to apply pre-patch file: $patchfile"
-                            exit 2
-                        fi
-                    else
-                        echo "** WARN ** Pre-patch file for $srcfile is missing: $patchfile"
-                    fi
-                    echo "$srcfile" >> "${files}.postpatch"
-                    echo "$srcfile" >> "$files"
-                    ;;
-                *)
-                    echo "** WARN ** Unknown mode '$mode' for file '$srcfile'"
-                    ;;
-            esac
-        fi
-    done < "${files}.git"
-    rm -f "${files}.git" "${files}.sp"
-
-    # Kick off uncrustify
-    echo
-    echo "** INFO ** Running: uncrustify -c $cfg --no-backup -l C -p debug.uncr -F $files"
-    uncrustify -c "$cfg" --no-backup -l C -p debug.uncr -F "$files" 2>&1
-    res=$?
-    echo "** INFO ** Uncrustify completed (exit code $res)"
-} | tee "${log}-1"  # Log needs to be closed here, to be processed in next block
-
-{
-    # Check the results
-    gitfiles=$(wc -l "$files" | cut -d\  -f1)
-    procfiles=$(grep "Parsing: " "${log}-1" | wc -l)
-    echo
-    echo "C source/header files checked into git: $gitfiles"
-    echo "Files processed by uncrustify:          $procfiles"
-    echo
-
-    # Post-Patch files modified after we uncrustify have adjusted them
-    if [ -r "${files}.postpatch" ]; then
-        while read srcfile;
-        do
-            patchfile="${srcroot}"/dev-tools/reformat-patches/after_$(echo "$srcfile" | tr "/" "_").patch
-            if [ -r "$patchfile" ]; then
-                echo "** INFO **  Post-patching '$srcfile'"
-                git apply "$patchfile"
-                if [ $? -ne 0 ]; then
-                    echo "** WARN ** Failed to apply $patchfile"
-                fi
-            else
-                echo "** WARN ** Post-patch file for $srcfile is missing: $patchfile"
-            fi
-        done < "${files}.postpatch"
-        rm -f "${files}.postpatch"
-    fi
-} | tee "${log}-2" # Log needs to be closed here, to be processed in next block
-
-cat "${log}-1" "${log}-2" > "$log"
-
-{
-    ec=1
-    echo
-    if [ "$gitfiles" -eq "$procfiles" ]; then
-        echo "Reformatting completed successfully"
-        ec=0
-    else
-        last=$(tail -n1 "${log}-1")
-        echo "** ERROR ** Reformating failed to process all files."
-        echo "            uncrustify exit code: $res"
-        echo "            Last log line: $last"
-        echo
-    fi
-    rm -f "${log}-1" "${log}-2"
-} | tee -a "$log"
-rm -f "${files}"
-
-exit $ec
diff --git a/dev-tools/reformat-patches/after_include_openvpn-plugin.h.in.patch b/dev-tools/reformat-patches/after_include_openvpn-plugin.h.in.patch
deleted file mode 100644
index 100da07..0000000
--- a/dev-tools/reformat-patches/after_include_openvpn-plugin.h.in.patch
+++ /dev/null
@@ -1,13 +0,0 @@
-diff --git a/include/openvpn-plugin.h.in b/include/openvpn-plugin.h.in
-index 05bffab..05b4b6a 100644
---- a/include/openvpn-plugin.h.in
-+++ b/include/openvpn-plugin.h.in
-@@ -169,7 +169,7 @@ typedef void *openvpn_plugin_handle_t;
- /*
-  * We are compiling OpenVPN.
-  */
--/* #define OPENVPN_PLUGIN_DEF        typedef */
-+#define OPENVPN_PLUGIN_DEF        typedef
- #define OPENVPN_PLUGIN_FUNC(name) (*name)
-
- #else  /* ifdef OPENVPN_PLUGIN_H */
diff --git a/dev-tools/reformat-patches/before_include_openvpn-plugin.h.in.patch b/dev-tools/reformat-patches/before_include_openvpn-plugin.h.in.patch
deleted file mode 100644
index 679c414..0000000
--- a/dev-tools/reformat-patches/before_include_openvpn-plugin.h.in.patch
+++ /dev/null
@@ -1,13 +0,0 @@
-diff --git a/include/openvpn-plugin.h.in b/include/openvpn-plugin.h.in
-index 34ad18b..f4c5472 100644
---- a/include/openvpn-plugin.h.in
-+++ b/include/openvpn-plugin.h.in
-@@ -169,7 +169,7 @@ typedef void *openvpn_plugin_handle_t;
- /*
-  * We are compiling OpenVPN.
-  */
--#define OPENVPN_PLUGIN_DEF        typedef
-+// #define OPENVPN_PLUGIN_DEF        typedef
- #define OPENVPN_PLUGIN_FUNC(name) (*name)
-
- #else
diff --git a/dev-tools/special-files.lst b/dev-tools/special-files.lst
deleted file mode 100644
index f3f77ea..0000000
--- a/dev-tools/special-files.lst
+++ /dev/null
@@ -1,4 +0,0 @@
-E:doc/doxygen/doc_key_generation.h     # @verbatim section gets mistreated, exclude it
-E:src/compat/compat-lz4.c              # Preserve LZ4 upstream formatting
-E:src/compat/compat-lz4.h              # Preserve LZ4 upstream formatting
-P:include/openvpn-plugin.h.in          # uncrustify segfaults, patch it before+after
diff --git a/dev-tools/uncrustify.conf b/dev-tools/uncrustify.conf
deleted file mode 100644
index 25eb4cd..0000000
--- a/dev-tools/uncrustify.conf
+++ /dev/null
@@ -1,76 +0,0 @@
-# Use Allman-style
-indent_columns=4
-indent_braces=false
-indent_else_if=false
-indent_switch_case=4
-indent_label=1
-nl_if_brace=add
-nl_brace_else=add
-nl_elseif_brace=add
-nl_else_brace=add
-nl_else_if=remove
-nl_for_brace=add
-nl_while_brace=add
-nl_switch_brace=add
-nl_fdef_brace=add
-nl_do_brace=add
-sp_func_proto_paren=Remove
-sp_func_def_paren=Remove
-sp_func_call_paren=Remove
-sp_sizeof_paren=Remove
-
-# No tabs, spaces only
-indent_with_tabs=0
-align_with_tabs=false
-cmt_convert_tab_to_spaces=true
-
-# Do not put spaces between the # and preprocessor statements
-pp_space=remove
-
-# Various whitespace fiddling
-sp_assign=add
-sp_before_sparen=add
-sp_inside_sparen=remove
-sp_cond_colon=add
-sp_cond_question=add
-sp_bool=add
-sp_else_brace=add
-sp_brace_else=add
-pos_arith=Lead
-pos_bool=Lead
-nl_func_type_name=add
-nl_before_case=true
-nl_assign_leave_one_liners=true
-nl_enum_leave_one_liners=true
-nl_brace_fparen=add
-nl_max=4
-nl_after_func_proto=2
-
-# Always use scoping braces for conditionals
-mod_full_brace_if=add
-mod_full_brace_if_chain=false
-mod_full_brace_while=add
-mod_full_brace_for=add
-mod_full_brace_do=add
-
-# Annotate #else and #endif statements
-mod_add_long_ifdef_endif_comment=20
-mod_add_long_ifdef_else_comment=5
-
-# Misc cleanup
-mod_remove_extra_semicolon=true
-
-# leave blank at end of empty for() statements
-sp_after_semi_for_empty=Add
-
-# Use C-style comments (/* .. */)
-cmt_c_nl_end=true
-cmt_star_cont=true
-cmt_cpp_to_c=true
-
-# Use "char **a"-style pointer stars/dereferences
-sp_before_ptr_star=Add
-sp_between_ptr_star=Remove
-sp_after_ptr_star=Remove
-sp_before_byref=Add
-sp_after_byref=Remove
diff --git a/dev-tools/update-copyright.sh b/dev-tools/update-copyright.sh
deleted file mode 100755
index a874631..0000000
--- a/dev-tools/update-copyright.sh
+++ /dev/null
@@ -1,50 +0,0 @@
-#!/bin/sh
-# update-copyright-sh - Simple tool to update the Copyright lines
-#                       in all files checked into git
-#
-# Copyright (C) 2016-2018 David Sommerseth <davids@openvpn.net>
-#
-# This program is free software; you can redistribute it and/or
-# modify it under the terms of the GNU General Public License
-# as published by the Free Software Foundation; either version 2
-# of the License.
-#
-# This program is distributed in the hope that it will be useful,
-# but WITHOUT ANY WARRANTY; without even the implied warranty of
-# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-# GNU General Public License for more details.
-#
-# You should have received a copy of the GNU General Public License
-# along with this program; if not, write to the Free Software
-# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
-#
-
-# Basic shell sanity
-set -eu
-
-# Simple argument control
-if [ $# -ne 1 ]; then
-    echo "Usage: $0 <New Copyright Year>"
-    exit 1
-fi
-
-# Only update Copyright lines with these owners
-# The 'or' operator is GNU sed specific, and must be \|
-UPDATE_COPYRIGHT_LINES="@openvpn\.net\|@fox-it\.com\|@sophos.com\|@eurephia\.net\|@greenie\.muc\.de"
-COPY_YEAR="$1"
-
-cd "$(git rev-parse --show-toplevel)"
-for file in $(git ls-files | grep -v vendor/);
-do
-    echo -n "Updating $file ..."
-    # The first sed operation covers 20xx-20yy copyright lines,
-    # The second sed operation changes 20xx -> 20xx-20yy
-    sed -e "/$UPDATE_COPYRIGHT_LINES/s/\(Copyright (C) 20..-\)\(20..\)[[:blank:]]\+/\1$COPY_YEAR /" \
-        -e "/$UPDATE_COPYRIGHT_LINES/s/\(Copyright (C) \)\(20..\)[[:blank:]]\+/\1\2-$COPY_YEAR /" \
-        -i $file
-    echo " Done"
-done
-echo
-echo "** All files updated with $COPY_YEAR as the ending copyright year"
-echo
-exit 0
diff --git a/distro/Makefile.in b/distro/Makefile.in
new file mode 100644
index 0000000..e5e65b8
--- /dev/null
+++ b/distro/Makefile.in
@@ -0,0 +1,703 @@
+# Makefile.in generated by automake 1.16.1 from Makefile.am.
+# @configure_input@
+
+# Copyright (C) 1994-2018 Free Software Foundation, Inc.
+
+# This Makefile.in is free software; the Free Software Foundation
+# gives unlimited permission to copy and/or distribute it,
+# with or without modifications, as long as this notice is preserved.
+
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY, to the extent permitted by law; without
+# even the implied warranty of MERCHANTABILITY or FITNESS FOR A
+# PARTICULAR PURPOSE.
+
+@SET_MAKE@
+
+#
+#  OpenVPN -- An application to securely tunnel IP networks
+#             over a single UDP port, with support for SSL/TLS-based
+#             session authentication and key exchange,
+#             packet encryption, packet authentication, and
+#             packet compression.
+#
+#  Copyright (C) 2002-2018 OpenVPN Inc <sales@openvpn.net>
+#  Copyright (C) 2006-2012 Alon Bar-Lev <alon.barlev@gmail.com>
+#
+VPATH = @srcdir@
+am__is_gnu_make = { \
+  if test -z '$(MAKELEVEL)'; then \
+    false; \
+  elif test -n '$(MAKE_HOST)'; then \
+    true; \
+  elif test -n '$(MAKE_VERSION)' && test -n '$(CURDIR)'; then \
+    true; \
+  else \
+    false; \
+  fi; \
+}
+am__make_running_with_option = \
+  case $${target_option-} in \
+      ?) ;; \
+      *) echo "am__make_running_with_option: internal error: invalid" \
+              "target option '$${target_option-}' specified" >&2; \
+         exit 1;; \
+  esac; \
+  has_opt=no; \
+  sane_makeflags=$$MAKEFLAGS; \
+  if $(am__is_gnu_make); then \
+    sane_makeflags=$$MFLAGS; \
+  else \
+    case $$MAKEFLAGS in \
+      *\\[\ \	]*) \
+        bs=\\; \
+        sane_makeflags=`printf '%s\n' "$$MAKEFLAGS" \
+          | sed "s/$$bs$$bs[$$bs $$bs	]*//g"`;; \
+    esac; \
+  fi; \
+  skip_next=no; \
+  strip_trailopt () \
+  { \
+    flg=`printf '%s\n' "$$flg" | sed "s/$$1.*$$//"`; \
+  }; \
+  for flg in $$sane_makeflags; do \
+    test $$skip_next = yes && { skip_next=no; continue; }; \
+    case $$flg in \
+      *=*|--*) continue;; \
+        -*I) strip_trailopt 'I'; skip_next=yes;; \
+      -*I?*) strip_trailopt 'I';; \
+        -*O) strip_trailopt 'O'; skip_next=yes;; \
+      -*O?*) strip_trailopt 'O';; \
+        -*l) strip_trailopt 'l'; skip_next=yes;; \
+      -*l?*) strip_trailopt 'l';; \
+      -[dEDm]) skip_next=yes;; \
+      -[JT]) skip_next=yes;; \
+    esac; \
+    case $$flg in \
+      *$$target_option*) has_opt=yes; break;; \
+    esac; \
+  done; \
+  test $$has_opt = yes
+am__make_dryrun = (target_option=n; $(am__make_running_with_option))
+am__make_keepgoing = (target_option=k; $(am__make_running_with_option))
+pkgdatadir = $(datadir)/@PACKAGE@
+pkgincludedir = $(includedir)/@PACKAGE@
+pkglibdir = $(libdir)/@PACKAGE@
+pkglibexecdir = $(libexecdir)/@PACKAGE@
+am__cd = CDPATH="$${ZSH_VERSION+.}$(PATH_SEPARATOR)" && cd
+install_sh_DATA = $(install_sh) -c -m 644
+install_sh_PROGRAM = $(install_sh) -c
+install_sh_SCRIPT = $(install_sh) -c
+INSTALL_HEADER = $(INSTALL_DATA)
+transform = $(program_transform_name)
+NORMAL_INSTALL = :
+PRE_INSTALL = :
+POST_INSTALL = :
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index 0000000..1152620
--- /dev/null
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+openvpn.8 :
+@HAVE_PYDOCUTILS_TRUE@	$(RST2MAN) $(srcdir)/$@.rst > $@
+@HAVE_PYDOCUTILS_FALSE@	@echo "Missing python-docutils - skipping man page generation"
+
+openvpn.8.html:
+@HAVE_PYDOCUTILS_TRUE@	$(RST2HTML) $(srcdir)/openvpn.8.rst > $@
+@HAVE_PYDOCUTILS_FALSE@	@echo "Missing python-docutils - skipping man/html page generation"
+
+dist-hook : openvpn.8 openvpn.8.html
+
+# Tell versions [3.59,3.63) of GNU make to not export all variables.
+# Otherwise a system limit (for SysV at least) may be exceeded.
+.NOEXPORT:
diff --git a/doc/README.man b/doc/README.man
deleted file mode 100644
index 29654c1..0000000
--- a/doc/README.man
+++ /dev/null
@@ -1,22 +0,0 @@
-
-man page documentation
-======================
-
-The man page content maintained in the openvpn.8.rst file and proper man and
-the html version of the man page are generated using python-docutils.  Both
-the man page and html file are generated during 'make dist' or 'make distcheck'
-and should be distributed inside the tarball by default.
-
-Users compiling OpenVPN from the tarball should not need to regenerate the
-man/html files unless the source file needs to be modified.
-
-Further information:
-
-* Python docutils project:
-  https://docutils.sourceforge.io/
-
-* Quickstart on .rst
-  https://docutils.sourceforge.io/docs/user/rst/quickstart.html
-
-* reStructuredText Markup Specifictaion (.rst)
-  https://docutils.sourceforge.io/docs/ref/rst/restructuredtext.html
diff --git a/doc/android.txt b/doc/android.txt
deleted file mode 100644
index e287be0..0000000
--- a/doc/android.txt
+++ /dev/null
@@ -1,101 +0,0 @@
-This file documents the support in OpenVPN for Android 4.0 and up.
-
-This support is primarily used in the "OpenVPN for Android" app
-(https://github.com/schwabe/ics-openvpn). For building see the developer
-README: https://github.com/schwabe/ics-openvpn/blob/master/doc/README.txt
-
-Android provides the VPNService API
-(http://developer.android.com/reference/android/net/VpnService.html)
-which allows establishing VPN connections without rooting the device.
-
-Since all the interfaces are are Android specific the calls to this
-interface are made from the UI instead of OpenVPN directly. The API
-needs the following parameters:
-
-- IP and netmask of tun interface
-- Networks that should be routed to the tun interface
-- DNS Servers and DNS Domain
-- MTU
-
-All IPs/Routes are in CIDR style. Non CIDR routes are not supported.
-Notable is the lack of support for setting routes to other interfaces
-usually used to avoid the server connection going over the tun
-interface. The Android VPNService API has the concept of protecting
-a socket from being routed over a interface. Calling protect (fd)
-will internally bind the socket to the interface used for the
-external connection (usually WiFi or mobile data).
-
-To use OpenVPN with the VPNService API OpenVPN must be build with
-the TARGET_ANDROID compile option. Also the UI must use a UNIX
-domain socket to connect to OpenVPN. When compiled as TARGET_ANDROID
-OpenVPN will use management callbacks instead of executing traditional
-ifconfig/route commands use the need-ok callback mechanism which
-will ask
-
-> NEED-OK command
-
-where command can be:
-
-IFCONFIG6 IPv6/netmask
-IFCONFIG local remoteOrNetmask MTU topology
-
-To tell the UI which IPs addresses OpenVPN expects on the interface.
-Topology is one of "net30","p2p","subnet" or "undef".
-
-ROUTE6 network/netmask
-ROUTE network netmask
-
-To tell the UI which routes should be set on the tun interface.
-
-DNSSERVER IP server address
-DNS6SERVER IPv6 server address
-DNSDOMAIN searchdomain
-
-To set the DNS server and search domain.
-
-The GUI will then respond with a "needok 'command' ok' or "needok
-'command' cancel', e.g. "needok 'IFCONFIG' ok".
-
-PERSIST_TUN_ACTION
-
-In Android 4.4-4.4.2 a bug exists that does not allow to open a new tun fd
-while a tun fd is still open. When OpenVPN wants to open an fd it will do
-this query. The UI should compare the last configuration of
-the tun device with the current tun configuration and reply with either (or
-always respond with OPEN_AFTER_BEFORE/OPEN_BEFORE_CLOSE)
-
-- NOACTION: Keep using the old fd
-- OPEN_AFTER_CLOSE: First close the old fd and then open a new to workaround the bug
-- OPEN_BEFORE_CLOSE: the normal behaviour when the VPN configuration changed
-
-For example the UI could respond with
-needok 'PERSIST_TUN_ACTION' OPEN_AFTER_CLOSE
-
-To protect a socket the OpenVPN will send a PROTECTFD to the UI.
-When sending the PROTECTFD command command to the UI it will send
-the fd of the socket as ancillary message over the UNIX socket.
-The UI will then call protect(fd) on the received socket protecting
-it from being routed over the VPN.
-
-When opening a tun device the OpenVPN process will first send all
-route, ifconfig and DNS related configuration to the UI and after
-that calls the OPENTUN command to receive a tun fd with the requested
-configuration. The UI will than use the collected information to
-call the VPNService's establish() method to receive a fd which in
-turn is send to the OpenVPN process as ancillary message to the
-"needok 'OPENTUN' ok' response.
-
-The OpenVPN for Android UI extensively uses other features that
-are not specific to Android but are rarely used on other platform.
-For example using SIGUSR1 and management-hold to restart, pause,
-continue the VPN on network changes or the external key management
---management-external-key option and inline files.
-
-To better support handover between networks, a the management command
-
-network-change [samenetwork]
-
-is used on the Android platform. It tells OpenVPN to do the necessary
-action when the network changes. Currently this is just calling
-the protect callback when using peer-id regardless of the samenetwork.
-Without peer-id OpenVPN will generate USR1 when samenetwork is not set.
diff --git a/doc/doxygen/Makefile.in b/doc/doxygen/Makefile.in
new file mode 100644
index 0000000..b1f3786
--- /dev/null
+++ b/doc/doxygen/Makefile.in
@@ -0,0 +1,532 @@
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+
+# Copyright (C) 1994-2018 Free Software Foundation, Inc.
+
+# This Makefile.in is free software; the Free Software Foundation
+# gives unlimited permission to copy and/or distribute it,
+# with or without modifications, as long as this notice is preserved.
+
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY, to the extent permitted by law; without
+# even the implied warranty of MERCHANTABILITY or FITNESS FOR A
+# PARTICULAR PURPOSE.
+
+@SET_MAKE@
+
+#
+#  OpenVPN -- An application to securely tunnel IP networks
+#             over a single UDP port, with support for SSL/TLS-based
+#             session authentication and key exchange,
+#             packet encryption, packet authentication, and
+#             packet compression.
+#
+#  Copyright (C) 2017-2018 Fox-IT B.V. <openvpn@fox-it.com>
+#
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+install-exec: install-exec-am
+install-data: install-data-am
+uninstall: uninstall-am
+
+install-am: all-am
+	@$(MAKE) $(AM_MAKEFLAGS) install-exec-am install-data-am
+
+installcheck: installcheck-am
+install-strip:
+	if test -z '$(STRIP)'; then \
+	  $(MAKE) $(AM_MAKEFLAGS) INSTALL_PROGRAM="$(INSTALL_STRIP_PROGRAM)" \
+	    install_sh_PROGRAM="$(INSTALL_STRIP_PROGRAM)" INSTALL_STRIP_FLAG=-s \
+	      install; \
+	else \
+	  $(MAKE) $(AM_MAKEFLAGS) INSTALL_PROGRAM="$(INSTALL_STRIP_PROGRAM)" \
+	    install_sh_PROGRAM="$(INSTALL_STRIP_PROGRAM)" INSTALL_STRIP_FLAG=-s \
+	    "INSTALL_PROGRAM_ENV=STRIPPROG='$(STRIP)'" install; \
+	fi
+mostlyclean-generic:
+
+clean-generic:
+
+distclean-generic:
+	-test -z "$(CONFIG_CLEAN_FILES)" || rm -f $(CONFIG_CLEAN_FILES)
+	-test . = "$(srcdir)" || test -z "$(CONFIG_CLEAN_VPATH_FILES)" || rm -f $(CONFIG_CLEAN_VPATH_FILES)
+	-test -z "$(DISTCLEANFILES)" || rm -f $(DISTCLEANFILES)
+
+maintainer-clean-generic:
+	@echo "This command is intended for maintainers to use"
+	@echo "it deletes files that may require special tools to rebuild."
+	-test -z "$(MAINTAINERCLEANFILES)" || rm -f $(MAINTAINERCLEANFILES)
+clean: clean-am
+
+clean-am: clean-generic clean-libtool clean-local mostlyclean-am
+
+distclean: distclean-am
+	-rm -f Makefile
+distclean-am: clean-am distclean-generic
+
+dvi: dvi-am
+
+dvi-am:
+
+html: html-am
+
+html-am:
+
+info: info-am
+
+info-am:
+
+install-data-am:
+
+install-dvi: install-dvi-am
+
+install-dvi-am:
+
+install-exec-am:
+
+install-html: install-html-am
+
+install-html-am:
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+
+install-info-am:
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+install-man:
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+install-pdf: install-pdf-am
+
+install-pdf-am:
+
+install-ps: install-ps-am
+
+install-ps-am:
+
+installcheck-am:
+
+maintainer-clean: maintainer-clean-am
+	-rm -f Makefile
+maintainer-clean-am: distclean-am maintainer-clean-generic
+
+mostlyclean: mostlyclean-am
+
+mostlyclean-am: mostlyclean-generic mostlyclean-libtool
+
+pdf: pdf-am
+
+pdf-am:
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+ps: ps-am
+
+ps-am:
+
+uninstall-am:
+
+.MAKE: install-am install-strip
+
+.PHONY: all all-am check check-am clean clean-generic clean-libtool \
+	clean-local cscopelist-am ctags-am distclean distclean-generic \
+	distclean-libtool distdir dvi dvi-am html html-am info info-am \
+	install install-am install-data install-data-am install-dvi \
+	install-dvi-am install-exec install-exec-am install-html \
+	install-html-am install-info install-info-am install-man \
+	install-pdf install-pdf-am install-ps install-ps-am \
+	install-strip installcheck installcheck-am installdirs \
+	maintainer-clean maintainer-clean-generic mostlyclean \
+	mostlyclean-generic mostlyclean-libtool pdf pdf-am ps ps-am \
+	tags-am uninstall uninstall-am
+
+.PRECIOUS: Makefile
+
+
+.PHONY: doxygen
+doxygen: openvpn.doxyfile
+	doxygen openvpn.doxyfile
+
+clean-local:
+	-rm -rf html latex
+
+# Tell versions [3.59,3.63) of GNU make to not export all variables.
+# Otherwise a system limit (for SysV at least) may be exceeded.
+.NOEXPORT:
diff --git a/doc/doxygen/doc_compression.h b/doc/doxygen/doc_compression.h
deleted file mode 100644
index 3176bad..0000000
--- a/doc/doxygen/doc_compression.h
+++ /dev/null
@@ -1,91 +0,0 @@
-/*
- *  OpenVPN -- An application to securely tunnel IP networks
- *             over a single TCP/UDP port, with support for SSL/TLS-based
- *             session authentication and key exchange,
- *             packet encryption, packet authentication, and
- *             packet compression.
- *
- *  Copyright (C) 2010-2018 Fox Crypto B.V. <openvpn@fox-it.com>
- *
- *
- *  This program is free software; you can redistribute it and/or modify
- *  it under the terms of the GNU General Public License version 2
- *  as published by the Free Software Foundation.
- *
- *  This program is distributed in the hope that it will be useful,
- *  but WITHOUT ANY WARRANTY; without even the implied warranty of
- *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- *  GNU General Public License for more details.
- *
- *  You should have received a copy of the GNU General Public License along
- *  with this program; if not, write to the Free Software Foundation, Inc.,
- *  51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
- */
-
-/**
- * @file Data Channel Compression module documentation file.
- */
-
-/**
- * @defgroup compression Data Channel Compression module
- *
- * This module offers compression of data channel packets.
- *
- * @par State structures
- * The Data Channel Compression module stores its internal state in a \c
- * lzo_compress_workspace structure.  This state includes flags which
- * control the module's behavior and preallocated working memory.  One
- * such structure is present for each VPN tunnel, and is stored in the \c
- * context.c2.lzo_compwork of the \c context associated with that VPN
- * tunnel.
- *
- * @par Initialization and cleanup
- * Every time a new \c lzo_compress_workspace is needed, it must be
- * initialized using the \c lzo_compress_init() function.  Similarly,
- * every time a \c lzo_compress_workspace is no longer needed, it must be
- * cleaned up using the \c lzo_compress_uninit() function.  These
- * functions take care of the allocation and freeing of internal working
- * memory, but not of the \c lzo_compress_workspace structures themselves.
- *
- * @par
- * Because of the one-to-one relationship between \c
- * lzo_compress_workspace structures and VPN tunnels, the above-mentioned
- * initialization and cleanup functions are called directly from the \c
- * init_instance() and \c close_instance() functions, which control the
- * initialization and cleanup of VPN tunnel instances and their associated
- * \c context structures.
- *
- * @par Packet processing functions
- * This module receives data channel packets from the \link data_control
- * Data Channel Control module\endlink and processes them according to the
- * settings of the packet's VPN tunnel.  The \link data_control Data
- * Channel Control module\endlink uses the following interface functions:
- * - For packets which will be sent to a remote OpenVPN peer: \c
- *   lzo_compress()
- * - For packets which have been received from a remote OpenVPN peer: \c
- *   lzo_decompress()
- *
- * @par Settings that control this module's activity
- * Whether or not the Data Channel Compression module is active depends on
- * the compile-time \c ENABLE_LZO preprocessor macro and the runtime flags
- * stored in \c lzo_compress_workspace.flags of the associated VPN tunnel.
- * The latter are initialized from \c options.lzo, which gets its value
- * from the process's configuration sources, such as its configuration
- * file or command line %options.
- *
- * @par Adaptive compression
- * The compression module supports adaptive compression.  If this feature
- * is enabled, the compression routines monitor their own performance and
- * turn compression on or off depending on whether it is leading to
- * significantly reduced payload size.
- *
- * @par Compression algorithms
- * This module uses the Lempel-Ziv-Oberhumer (LZO) compression algorithms.
- * These offer lossless compression and are designed for high-performance
- * decompression.  This module uses the external \c lzo library's
- * implementation of the algorithms.
- *
- * @par
- * For more information on the LZO library, see:\n
- * http://www.oberhumer.com/opensource/lzo/
- */
diff --git a/doc/doxygen/doc_control_processor.h b/doc/doxygen/doc_control_processor.h
deleted file mode 100644
index 1bbf2d2..0000000
--- a/doc/doxygen/doc_control_processor.h
+++ /dev/null
@@ -1,184 +0,0 @@
-/*
- *  OpenVPN -- An application to securely tunnel IP networks
- *             over a single TCP/UDP port, with support for SSL/TLS-based
- *             session authentication and key exchange,
- *             packet encryption, packet authentication, and
- *             packet compression.
- *
- *  Copyright (C) 2010-2018 Fox Crypto B.V. <openvpn@fox-it.com>
- *
- *
- *  This program is free software; you can redistribute it and/or modify
- *  it under the terms of the GNU General Public License version 2
- *  as published by the Free Software Foundation.
- *
- *  This program is distributed in the hope that it will be useful,
- *  but WITHOUT ANY WARRANTY; without even the implied warranty of
- *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- *  GNU General Public License for more details.
- *
- *  You should have received a copy of the GNU General Public License along
- *  with this program; if not, write to the Free Software Foundation, Inc.,
- *  51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
- */
-
-/**
- * @file
- * Control Channel Processor module documentation file.
- */
-
-/**
- * @defgroup control_processor Control Channel Processor module
- *
- * This module controls the setup and maintenance of VPN tunnels and the
- * associated security parameters.
- *
- * @par This module's role
- * The Control Channel Processor module lies at the core of OpenVPN's
- * activities.  It handles the setup of new VPN tunnels, the negotiation
- * of data channel security parameters, the managing of active VPN
- * tunnels, and finally the cleanup of expired VPN tunnels.
- *
- * @par State structures
- * A large amount of VPN tunnel state information must be stored within an
- * OpenVPN process.  A wide variety of container structures are used by
- * this module for that purpose.  Several of these structures are listed
- * below, and the function of the first three VPN tunnel state containers
- * is described in more detail later.
- *  - VPN tunnel state containers:
- *     - \c tls_multi, security parameter state for a single VPN tunnel.
- *       Contains three instances of the \c tls_session structure.
- *     - \c tls_session, security parameter state of a single session
- *       within a VPN tunnel.  Contains two instances of the \c key_state
- *       structure.
- *     - \c key_state, security parameter state of one TLS and data
- *       channel %key set.
- *  - Data channel security parameter containers:
- *     - \c key_ctx_bi, container for two sets of OpenSSL cipher and/or
- *       HMAC context (both directions).  Contains two instances of the \c
- *       key_ctx structure.
- *     - \c key_ctx, container for one set of OpenSSL cipher and/or HMAC
- *       context (one directions.
- *  - Key material containers:
- *     - \c key2, container for two sets of cipher and/or HMAC %key
- *       material (both directions).  Contains two instances of the \c key
- *       structure.
- *     - \c key, container for one set of cipher and/or HMAC %key material
- *       (one direction).
- *     - \c key_direction_state, ordering of %key material within the \c
- *       key2.key array.
- *  - Key method 2 random material containers:
- *     - \c key_source2, container for both halves of random material used
- *       for %key method 2.  Contains two instances of the \c key_source
- *       structure.
- *     - \c key_source, container for one half of random material used for
- *       %key method 2.
- *
- * @par The life of a \c tls_multi object
- * A \c tls_multi structure contains all the security parameter state
- * information related to the control and data channels of one VPN tunnel.
- * Its life cycle can be summarized as follows:
- *  -# Initialization: \c tls_multi_init() and \c
- *     tls_multi_init_finalize(), which are called (indirectly) from \c
- *     init_instance() when initializing a new \c context structure.
- *     - Initializes a \c tls_multi structure.
- *     - Allocates the three \c tls_session objects contained by the \c
- *       tls_multi structure, and initializes as appropriate.
- *  -# Management: \c tls_multi_process() and \c tls_pre_decrypt()
- *     - If a new session is initiated by the remote peer, then \c
- *       tls_pre_decrypt() starts the new session negotiation in the
- *       un-trusted \c tls_session.
- *     - If the, as yet, un-trusted \c tls_session authenticates
- *       successfully, then \c tls_multi_process() moves it so as to be
- *       the active \c tls_session.
- *     - If an error occurs during processing of a \c key_state object,
- *       then \c tls_multi_process() cleans up and initializes the
- *       associated \c tls_session object.  If the error occurred in the
- *       active \c key_state of the active \c tls_session and the
- *       lame-duck \c key_state of that \c tls_session has not yet
- *       expired, it is preserved as fallback.
- *  -# Cleanup: \c tls_multi_free(), which is called (indirectly) from \c
- *     close_instance() when cleaning up a \c context structure.
- *     - Cleans up a \c tls_multi structure.
- *     - Cleans up the three \c tls_session objects contained by the \c
- *       tls_multi structure.
- *
- * @par The life of a \c tls_session object
- * A \c tls_session structure contains the state information related to an
- * active and a lame-duck \c key_state.  Its life cycle can be summarized
- * as follows:
- *  -# Initialization: \c tls_session_init()
- *     - Initializes a \c tls_session structure.
- *     - Initializes the primary \c key_state by calling \c
- *       key_state_init().
- *  -# Renegotiation: \c key_state_soft_reset()
- *     - Cleans up the old lame-duck \c key_state by calling \c
- *       key_state_free().
- *     - Moves the old primary \c key_state to be the new lame-duck \c
- *       key_state.
- *     - Initializes a new primary \c key_state by calling \c
- *       key_state_init().
- *  -# Cleanup: \c tls_session_free()
- *     - Cleans up a \c tls_session structure.
- *     - Cleans up all \c key_state objects associated with the session by
- *       calling \c key_state_free() for each.
- *
- * @par The life of a \c key_state object
- * A \c key_state structure represents one control and data channel %key
- * set.  It contains an OpenSSL TLS object that encapsulates the control
- * channel, and the data channel security parameters needed by the \link
- * data_crypto Data Channel Crypto module\endlink to perform cryptographic
- * operations on data channel packets.  Its life cycle can be summarized
- * as follows:
- *  -# Initialization: \c key_state_init()
- *     - Initializes a \c key_state structure.
- *     - Creates a new OpenSSL TLS object to encapsulate this new control
- *       channel session.
- *     - Sets \c key_state.state to \c S_INITIAL.
- *     - Allocates several internal buffers.
- *     - Initializes new reliability layer structures for this key set.
- *  -# Negotiation: \c tls_process()
- *     - The OpenSSL TLS object negotiates a TLS session between itself
- *       and the remote peer's TLS object.
- *     - Key material is generated and exchanged through the TLS session
- *       between OpenVPN peers.
- *     - Both peers initialize their data channel cipher and HMAC key
- *       contexts.
- *     - On successful negotiation, the \c key_state.state will progress
- *       from \c S_INITIAL to \c S_ACTIVE and \c S_NORMAL.
- *  -# Active tunneling: \link data_crypto Data Channel Crypto
- *     module\endlink
- *     - Data channel packet to be sent to a remote OpenVPN peer:
- *        - \c tls_pre_encrypt() loads the security parameters from the \c
- *          key_state into a \c crypto_options structure.
- *        - \c openvpn_encrypt() uses the \c crypto_options to an encrypt
- *          and HMAC sign the data channel packet.
- *     - Data channel packet received from a remote OpenVPN peer:
- *        - \c tls_pre_decrypt() loads the security parameters from the \c
- *          key_state into a \c crypto_options structure.
- *        - \c openvpn_encrypt() uses the \c crypto_options to
- *          authenticate and decrypt the data channel packet.
- *  -# Cleanup: \c key_state_free()
- *     - Cleans up a \c key_state structure together with its OpenSSL TLS
- *       object, key material, internal buffers, and reliability layer
- *       structures.
- *
- * @par Control functions
- * The following two functions drive the Control Channel Processor's
- * activities.
- *  - \c tls_multi_process(), iterates through the \c tls_session objects
- *    within a given \c tls_multi of a VPN tunnel, and calls \c
- *    tls_process() for each \c tls_session which is being set up, is
- *    already active, or is busy expiring.
- *  - \c tls_process(), performs the Control Channel Processor module's
- *    core handling of received control channel messages, and generates
- *    appropriate messages to be sent.
- *
- * @par Functions which control data channel key generation
- *  - Key method 1 key exchange functions were removed from OpenVPN 2.5
- *  - Key method 2 key exchange functions:
- *     - \c key_method_2_write(), generates and processes key material to
- *       be sent to the remote OpenVPN peer.
- *     - \c key_method_2_read(), processes key material received from the
- *       remote OpenVPN peer.
- */
diff --git a/doc/doxygen/doc_control_tls.h b/doc/doxygen/doc_control_tls.h
deleted file mode 100644
index 5cb7c53..0000000
--- a/doc/doxygen/doc_control_tls.h
+++ /dev/null
@@ -1,104 +0,0 @@
-/*
- *  OpenVPN -- An application to securely tunnel IP networks
- *             over a single TCP/UDP port, with support for SSL/TLS-based
- *             session authentication and key exchange,
- *             packet encryption, packet authentication, and
- *             packet compression.
- *
- *  Copyright (C) 2010-2018 Fox Crypto B.V. <openvpn@fox-it.com>
- *
- *
- *  This program is free software; you can redistribute it and/or modify
- *  it under the terms of the GNU General Public License version 2
- *  as published by the Free Software Foundation.
- *
- *  This program is distributed in the hope that it will be useful,
- *  but WITHOUT ANY WARRANTY; without even the implied warranty of
- *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- *  GNU General Public License for more details.
- *
- *  You should have received a copy of the GNU General Public License along
- *  with this program; if not, write to the Free Software Foundation, Inc.,
- *  51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
- */
-
-/**
- * @file
- * Control Channel TLS module documentation file.
- */
-
-/**
- * @defgroup control_tls Control Channel TLS module
- *
- * This module provides secure encapsulation of control channel messages
- * exchanged between OpenVPN peers.
- *
- * The Control Channel TLS module uses the Transport Layer Security (TLS)
- * protocol to provide an encrypted communication channel between the
- * local OpenVPN process and a remote peer.  This protocol simultaneously
- * offers certificate-based authentication of the communicating parties.
- *
- * @par This module's roles
- * The Control Channel TLS module is essential for the security of any
- * OpenVPN-based system.  On the one hand, it performs the security
- * operations necessary to protect control channel messages exchanged
- * between OpenVPN peers.  On the other hand, before the control and data
- * channels are even setup, it controls the exchange of certificates and
- * verification of the remote's identity during negotiation of VPN
- * tunnels.
- *
- * @par
- * The former role is described below.  The latter is described in the
- * documentation for the \c verify_callback() function.
- *
- * @par
- * In other words, this module takes care of the confidentiality and
- * integrity of data channel communications, and the authentication of
- * both the communicating parties and the control channel messages
- * exchanged.
- *
- * @par Initialization and cleanup
- * Because of the one-to-one relationship between control channel TLS
- * state and \c key_state structures, the initialization and cleanup of an
- * instance of the Control Channel TLS module's state happens within the
- * \c key_state_init() and \c key_state_free() functions.  In other words,
- * each \c key_state object contains exactly one OpenSSL SSL-BIO object,
- * which is initialized and cleaned up together with the rest of the \c
- * key_state object.
- *
- * @par Packet processing functions
- * This object behaves somewhat like a black box with a ciphertext and a
- * plaintext I/O port. Its interaction with OpenVPN's control channel
- * during operation takes place within the \c tls_process() function of
- * the \link control_processor Control Channel Processor\endlink.  The
- * following functions are available for processing packets:
- * - If ciphertext received from the remote peer is available in the \link
- *   reliable Reliability Layer\endlink:
- *   - Insert it into the ciphertext-side of the SSL-BIO.
- *   - Use function: \c key_state_write_ciphertext()
- * - If ciphertext can be extracted from the ciphertext-side of the
- *   SSL-BIO:
- *   - Pass it to the \link reliable Reliability Layer\endlink for sending
- *     to the remote peer.
- *   - Use function: \c key_state_read_ciphertext()
- * - If plaintext can be extracted from the plaintext-side of the SSL-BIO:
- *   - Pass it on to the \link control_processor Control Channel
- *     Processor\endlink for local processing.
- *   - Use function: \c key_state_read_plaintext()
- * - If plaintext from the \link control_processor Control Channel
- *   Processor\endlink is available to be sent to the remote peer:
- *   - Insert it into the plaintext-side of the SSL-BIO.
- *   - Use function: \c key_state_write_plaintext() or \c
- *     key_state_write_plaintext_const()
- *
- * @par Transport Layer Security protocol implementation
- * This module uses the OpenSSL library's implementation of the TLS
- * protocol in the form of an OpenSSL SSL-BIO object.
- *
- * @par
- * For more information on the OpenSSL library's BIO objects, please see:
- *  - OpenSSL's generic BIO objects:
- *    http://www.openssl.org/docs/crypto/bio.html
- *  - OpenSSL's SSL-BIO object:
- *    http://www.openssl.org/docs/crypto/BIO_f_ssl.html
- */
diff --git a/doc/doxygen/doc_data_control.h b/doc/doxygen/doc_data_control.h
deleted file mode 100644
index ad2a308..0000000
--- a/doc/doxygen/doc_data_control.h
+++ /dev/null
@@ -1,102 +0,0 @@
-/*
- *  OpenVPN -- An application to securely tunnel IP networks
- *             over a single TCP/UDP port, with support for SSL/TLS-based
- *             session authentication and key exchange,
- *             packet encryption, packet authentication, and
- *             packet compression.
- *
- *  Copyright (C) 2010-2018 Fox Crypto B.V. <openvpn@fox-it.com>
- *
- *
- *  This program is free software; you can redistribute it and/or modify
- *  it under the terms of the GNU General Public License version 2
- *  as published by the Free Software Foundation.
- *
- *  This program is distributed in the hope that it will be useful,
- *  but WITHOUT ANY WARRANTY; without even the implied warranty of
- *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- *  GNU General Public License for more details.
- *
- *  You should have received a copy of the GNU General Public License along
- *  with this program; if not, write to the Free Software Foundation, Inc.,
- *  51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
- */
-
-/**
- * @file
- * Data Channel Control module documentation file.
- */
-
-/**
- * @defgroup data_control Data Channel Control module
- *
- * This module controls the processing of packets as they pass through the
- * data channel.
- *
- * The Data Channel Control module controls the processing of packets as
- * they pass through the data channel.  The processing includes packet
- * compression, fragmentation, and the performing of security operations
- * on the packets.  This module does not do the processing itself, but
- * passes the packet to other data channel modules to perform the
- * appropriate actions.
- *
- * Packets can travel in two directions through the data channel.  They
- * can be going to a remote destination which is reachable through a VPN
- * tunnel, in which case this module prepares them to be sent out through
- * a VPN tunnel.  On the other hand, they can have been received through a
- * VPN tunnel from a remote OpenVPN peer, in which case this module
- * retrieves the packet in its original form as it was before entering the
- * VPN tunnel on the remote OpenVPN peer.  How this module processes
- * packets traveling in the two directions is discussed in more detail
- * below.
- *
- * @par Packets to be sent to a remote OpenVPN peer
- * This module's main function for processing packets traveling in this
- * direction is \c encrypt_sign(), which performs the following processing
- * steps:
- * - Call the \link compression Data Channel Compression module\endlink to
- *   perform packet compression if necessary.
- * - Call the \link fragmentation Data Channel Fragmentation
- *   module\endlink to perform packet fragmentation if necessary.
- * - Call the \link data_crypto Data Channel Crypto module\endlink to
- *   perform the required security operations.
- *
- * @par
- * See the \c encrypt_sign() documentation for details of these
- * interactions.
- *
- * @par
- * After the above processing is complete, the packet is ready to be sent
- * to a remote OpenVPN peer as a VPN tunnel packet.  The actual sending of
- * the packet is handled by the \link external_multiplexer External
- * Multiplexer\endlink.
- *
- * @par Packets received from a remote OpenVPN peer
- * The function that controls how packets traveling in this direction are
- * processed is \c process_incoming_link().  That function, however, also
- * performs some of the tasks required for the \link external_multiplexer
- * External Multiplexer\endlink and is therefore listed as part of that
- * module, instead of here.
- *
- * @par
- * After the \c process_incoming_link() function has determined that a
- * received packet is a data channel packet, it performs the following
- * processing steps:
- * - Call the \link data_crypto Data Channel Crypto module\endlink to
- *   perform the required security operations.
- * - Call the \link fragmentation Data Channel Fragmentation
- *   module\endlink to perform packet reassembly if necessary.
- * - Call the \link compression Data Channel Compression module\endlink to
- *   perform packet decompression if necessary.
- *
- * @par
- * See the \c process_incoming_link() documentation for details of these
- * interactions.
- *
- * @par
- * After the above processing is complete, the packet is in its original
- * form again as it was received by the remote OpenVPN peer.  It can now
- * be routed further to its final destination.  If that destination is a
- * locally reachable host, then the \link internal_multiplexer Internal
- * Multiplexer\endlink will send it there.
- */
diff --git a/doc/doxygen/doc_data_crypto.h b/doc/doxygen/doc_data_crypto.h
deleted file mode 100644
index 3828089..0000000
--- a/doc/doxygen/doc_data_crypto.h
+++ /dev/null
@@ -1,70 +0,0 @@
-/*
- *  OpenVPN -- An application to securely tunnel IP networks
- *             over a single TCP/UDP port, with support for SSL/TLS-based
- *             session authentication and key exchange,
- *             packet encryption, packet authentication, and
- *             packet compression.
- *
- *  Copyright (C) 2010-2018 Fox Crypto B.V. <openvpn@fox-it.com>
- *
- *
- *  This program is free software; you can redistribute it and/or modify
- *  it under the terms of the GNU General Public License version 2
- *  as published by the Free Software Foundation.
- *
- *  This program is distributed in the hope that it will be useful,
- *  but WITHOUT ANY WARRANTY; without even the implied warranty of
- *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- *  GNU General Public License for more details.
- *
- *  You should have received a copy of the GNU General Public License along
- *  with this program; if not, write to the Free Software Foundation, Inc.,
- *  51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
- */
-
-/**
- * @file
- * Data Channel Crypto module documentation file.
- */
-
-/**
- * @addtogroup data_crypto Data Channel Crypto module
- *
- * The Data Channel Crypto Module performs cryptographic operations on
- * data channel packets.
- *
- * @par Security parameters
- * This module is merely the user of a VPN tunnel's security parameters.
- * It does not perform the negotiation and setup of the security
- * parameters, nor the %key generation involved.  These actions are done
- * by the \link control_processor Control Channel Processor\endlink.  This
- * module receives the appropriate security parameters from that module in
- * the form of a \c crypto_options structure when they are necessary for
- * processing a packet.
- *
- * @par Packet processing functions
- * This module receives data channel packets from the \link data_control
- * Data Channel Control module\endlink and processes them according to the
- * security parameters of the packet's VPN tunnel.  The \link data_control
- * Data Channel Control module\endlink uses the following interface
- * functions:
- *  - For packets which will be sent to a remote OpenVPN peer:
- *     - \c tls_pre_encrypt()
- *     - \c openvpn_encrypt()
- *     - \c tls_post_encrypt()
- *  - For packets which have been received from a remote OpenVPN peer:
- *     - \c tls_pre_decrypt() (documented as part of the \link
- *       external_multiplexer External Multiplexer\endlink)
- *     - \c openvpn_decrypt()
- *
- * @par Settings that control this module's activity
- * How the data channel processes packets received from the \link data_control
- * Data Channel Control module\endlink at runtime depends on the associated
- * \c crypto_options structure.  To perform cryptographic operations, the
- * \c crypto_options.key_ctx_bi must contain the correct cipher and HMAC
- * security parameters for the direction the packet is traveling in.
- *
- * @par Crypto algorithms
- * This module uses the crypto algorithm implementations of the external
- * crypto library (currently either OpenSSL (default), or mbed TLS).
- */
diff --git a/doc/doxygen/doc_eventloop.h b/doc/doxygen/doc_eventloop.h
deleted file mode 100644
index 8bd2635..0000000
--- a/doc/doxygen/doc_eventloop.h
+++ /dev/null
@@ -1,66 +0,0 @@
-/*
- *  OpenVPN -- An application to securely tunnel IP networks
- *             over a single TCP/UDP port, with support for SSL/TLS-based
- *             session authentication and key exchange,
- *             packet encryption, packet authentication, and
- *             packet compression.
- *
- *  Copyright (C) 2010-2018 Fox Crypto B.V. <openvpn@fox-it.com>
- *
- *
- *  This program is free software; you can redistribute it and/or modify
- *  it under the terms of the GNU General Public License version 2
- *  as published by the Free Software Foundation.
- *
- *  This program is distributed in the hope that it will be useful,
- *  but WITHOUT ANY WARRANTY; without even the implied warranty of
- *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- *  GNU General Public License for more details.
- *
- *  You should have received a copy of the GNU General Public License along
- *  with this program; if not, write to the Free Software Foundation, Inc.,
- *  51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
- */
-
-/**
- * @file
- * Main Event Loop module documentation file.
- */
-
-/**
- * @defgroup eventloop Main Event Loop module
- *
- * This main event loop module drives the packet processing of OpenVPN.
- *
- * OpenVPN is an event driven system.  Its activities are driven by a main
- * event loop, which repeatedly waits for one of several predefined events
- * to occur, and then calls the appropriate module to handle the event.
- * The major types of network events that OpenVPN processes are:
- * - A packet can be read from the external network interface.
- *   - The main event loop activates the \link external_multiplexer
- *     External Multiplexer\endlink to read and process the packet.
- * - A packet can be read from the virtual tun/tap network interface.
- *   - The main event loop activates the \link internal_multiplexer
- *     Internal Multiplexer\endlink to read and process the packet.
- * - If a packet is ready to be sent out as a VPN tunnel packet: the
- *   external network interface can be written to.
- *   - The main event loop activates the \link external_multiplexer
- *     External Multiplexer\endlink to send the packet.
- * - If a packet is ready to be sent to a locally reachable destination:
- *   the virtual tun/tap network interface can be written to.
- *   - The main event loop activates the \link internal_multiplexer
- *     Internal Multiplexer\endlink to send the packet.
- *
- * Beside these external events, OpenVPN also processes other types of
- * internal events.  These include scheduled events, such as resending of
- * non-acknowledged control channel messages.
- *
- * @par Main event loop implementations
- *
- * Depending on the mode in which OpenVPN is running, a different main
- * event loop function is called to drive the event processing.  The
- * following implementations are available:
- * - Client mode using UDP or TCP: \c tunnel_point_to_point()
- * - Server mode using UDP: \c tunnel_server_udp_single_threaded()
- * - Server mode using TCP: \c tunnel_server_tcp()
- */
diff --git a/doc/doxygen/doc_external_multiplexer.h b/doc/doxygen/doc_external_multiplexer.h
deleted file mode 100644
index 692c15c..0000000
--- a/doc/doxygen/doc_external_multiplexer.h
+++ /dev/null
@@ -1,45 +0,0 @@
-/*
- *  OpenVPN -- An application to securely tunnel IP networks
- *             over a single TCP/UDP port, with support for SSL/TLS-based
- *             session authentication and key exchange,
- *             packet encryption, packet authentication, and
- *             packet compression.
- *
- *  Copyright (C) 2010-2018 Fox Crypto B.V. <openvpn@fox-it.com>
- *
- *
- *  This program is free software; you can redistribute it and/or modify
- *  it under the terms of the GNU General Public License version 2
- *  as published by the Free Software Foundation.
- *
- *  This program is distributed in the hope that it will be useful,
- *  but WITHOUT ANY WARRANTY; without even the implied warranty of
- *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- *  GNU General Public License for more details.
- *
- *  You should have received a copy of the GNU General Public License along
- *  with this program; if not, write to the Free Software Foundation, Inc.,
- *  51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
- */
-
-/**
- * @file
- * External Multiplexer module documentation file.
- */
-
-/**
- * @addtogroup external_multiplexer External Multiplexer module
- *
- * The External Multiplexer is the link between the external network
- * interface and the other OpenVPN modules.  It reads packets from the
- * external network interface, determines which remote OpenVPN peer and
- * VPN tunnel they are associated with, and whether they are data channel
- * or control channel packets.  It then passes the packets on to the
- * appropriate processing module.
- *
- * This module also handles packets traveling in the reverse direction,
- * which have been generated by the local control channel or which have
- * already been processed by the \link data_control Data Channel Control
- * module\endlink and are destined for a remote host reachable through a
- * VPN tunnel.
- */
diff --git a/doc/doxygen/doc_fragmentation.h b/doc/doxygen/doc_fragmentation.h
deleted file mode 100644
index 90e8d9e..0000000
--- a/doc/doxygen/doc_fragmentation.h
+++ /dev/null
@@ -1,95 +0,0 @@
-/*
- *  OpenVPN -- An application to securely tunnel IP networks
- *             over a single TCP/UDP port, with support for SSL/TLS-based
- *             session authentication and key exchange,
- *             packet encryption, packet authentication, and
- *             packet compression.
- *
- *  Copyright (C) 2010-2018 Fox Crypto B.V. <openvpn@fox-it.com>
- *
- *
- *  This program is free software; you can redistribute it and/or modify
- *  it under the terms of the GNU General Public License version 2
- *  as published by the Free Software Foundation.
- *
- *  This program is distributed in the hope that it will be useful,
- *  but WITHOUT ANY WARRANTY; without even the implied warranty of
- *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- *  GNU General Public License for more details.
- *
- *  You should have received a copy of the GNU General Public License along
- *  with this program; if not, write to the Free Software Foundation, Inc.,
- *  51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
- */
-
-/**
- * @file
- * Data Channel Fragmentation module documentation file.
- */
-
-/**
- * @defgroup fragmentation Data Channel Fragmentation module
- *
- * The Data Channel Fragmentation module offers fragmentation of data
- * channel packets.
- *
- * @par State structures
- * The Data Channel Fragmentation module stores its internal state in a \c
- * fragment_master structure.  One such structure is present for each VPN
- * tunnel, and is stored in \c context.c2.fragment of the \c context
- * associated with that VPN tunnel.
- *
- * @par
- * The \c fragment_master structure contains one \c fragment_list
- * structure \c fragment_master.incoming.  This is a list of \c fragment
- * structures, each of which can store the parts of one fragmented packet
- * while it is being reassembled.  The \c fragment_master structure also
- * contains one \c buffer called \c fragment_master.outgoing, in which a
- * data channel large packet to be sent to a remote OpenVPN peer can be
- * broken up into parts to be sent one by one.
- *
- * @par Initialization and cleanup
- * Every time a new \c fragment_master is needed, it must be allocated and
- * initialized by the \c fragment_init() function.  Similarly, every time
- * a \c fragment_master is no longer needed, it must be cleaned up using
- * the \c fragment_free() function.  These functions take care of the
- * allocation and freeing of the \c fragment_master structure itself and
- * all internal memory required for the use of that structure.  Note that
- * this behavior is different from that displayed by the \link compression
- * Data Channel Compression module\endlink.
- *
- * @par
- * Because of the one-to-one relationship between \c fragment_master
- * structures and VPN tunnels, the above-mentioned initialization and
- * cleanup functions are called directly from the \c init_instance() and
- * \c close_instance() functions, which control the initialization and
- * cleanup of VPN tunnel instances and their associated \c context
- * structures.
- *
- * @par Packet processing functions
- * This module receives data channel packets from the \link data_control
- * Data Channel Control module\endlink and processes them according to the
- * settings of the packet's VPN tunnel.  The \link data_control Data
- * Channel Control module\endlink uses the following interface functions:
- * - For packets which will be sent to a remote OpenVPN peer: \c
- *   fragment_outgoing() \n This function inspects data channel packets as
- *   they are being made ready to be sent as VPN tunnel packets to a
- *   remote OpenVPN peer.  If a packet's size is larger than its
- *   destination VPN tunnel's maximum transmission unit (MTU), then this
- *   module breaks that packet up into smaller parts, each of which is
- *   smaller than or equal to the VPN tunnel's MTU.  See \c
- *   fragment_outgoing() for details.
- * - For packets which have been received from a remote OpenVPN peer: \c
- *   fragment_incoming() \n This function inspects data channel packets
- *   that have been received from a remote OpenVPN peer through a VPN
- *   tunnel.  It reads the fragmentation header of the packet, and
- *   depending on its value performs the appropriate action.  See \c
- *   fragment_incoming() for details.
- *
- * @par Settings that control this module's activity
- * Whether the Data Channel Fragmentation module is active or not depends
- * on the compile-time \c ENABLE_FRAGMENT preprocessor macro and the
- * runtime flag \c options.fragment, which gets its value from the
- * process's configuration sources, such as the configuration file and
- * commandline %options.
- */
diff --git a/doc/doxygen/doc_internal_multiplexer.h b/doc/doxygen/doc_internal_multiplexer.h
deleted file mode 100644
index c68a09c..0000000
--- a/doc/doxygen/doc_internal_multiplexer.h
+++ /dev/null
@@ -1,43 +0,0 @@
-/*
- *  OpenVPN -- An application to securely tunnel IP networks
- *             over a single TCP/UDP port, with support for SSL/TLS-based
- *             session authentication and key exchange,
- *             packet encryption, packet authentication, and
- *             packet compression.
- *
- *  Copyright (C) 2010-2018 Fox Crypto B.V. <openvpn@fox-it.com>
- *
- *
- *  This program is free software; you can redistribute it and/or modify
- *  it under the terms of the GNU General Public License version 2
- *  as published by the Free Software Foundation.
- *
- *  This program is distributed in the hope that it will be useful,
- *  but WITHOUT ANY WARRANTY; without even the implied warranty of
- *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- *  GNU General Public License for more details.
- *
- *  You should have received a copy of the GNU General Public License along
- *  with this program; if not, write to the Free Software Foundation, Inc.,
- *  51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
- */
-
-/**
- * @file
- * Internal Multiplexer module documentation file.
- */
-
-/**
- * @addtogroup internal_multiplexer Internal Multiplexer module
- *
- * The Internal Multiplexer is the link between the virtual tun/tap
- * network interface and the \link data_control Data Channel Control
- * module\endlink.  It reads packets from the virtual network interface,
- * determines for which remote OpenVPN peer they are destined, and then
- * passes the packets on to the Data Channel Control module together with
- * information about their destination VPN tunnel instance.
- *
- * This module also handles packets traveling in the reverse direction,
- * which have already been processed by the Data Channel Control module
- * and are destined for a locally reachable host.
- */
diff --git a/doc/doxygen/doc_key_generation.h b/doc/doxygen/doc_key_generation.h
deleted file mode 100644
index 4bb9c70..0000000
--- a/doc/doxygen/doc_key_generation.h
+++ /dev/null
@@ -1,148 +0,0 @@
-/*
- *  OpenVPN -- An application to securely tunnel IP networks
- *             over a single TCP/UDP port, with support for SSL/TLS-based
- *             session authentication and key exchange,
- *             packet encryption, packet authentication, and
- *             packet compression.
- *
- *  Copyright (C) 2010-2018 Fox Crypto B.V. <openvpn@fox-it.com>
- *
- *
- *  This program is free software; you can redistribute it and/or modify
- *  it under the terms of the GNU General Public License version 2
- *  as published by the Free Software Foundation.
- *
- *  This program is distributed in the hope that it will be useful,
- *  but WITHOUT ANY WARRANTY; without even the implied warranty of
- *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- *  GNU General Public License for more details.
- *
- *  You should have received a copy of the GNU General Public License along
- *  with this program; if not, write to the Free Software Foundation, Inc.,
- *  51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
- */
-
-/**
- * @file
- * Key generation documentation file.
- */
-
-/**
- * @page key_generation Data channel %key generation
- *
- * This section describes how OpenVPN peers generate and exchange %key
- * material necessary for the security operations performed on data
- * channel packets.
- *
- * The %key generation and exchange process between OpenVPN client and
- * server occurs every time data channel security parameters are
- * negotiated, for example during the initial setup of a VPN tunnel or
- * when the active security parameters expire.  In source code terms, this
- * is when a new key_state structure is initialized.
- *
- * @section key_generation_method Key methods
- *
- * OpenVPN supports two different ways of generating and exchanging %key
- * material between client and server.  These are known as %key method 1
- * and %key method 2.  %Key method 2 is the recommended method. Both are
- * explained below.
- *
- * @subsection key_generation_method_1 Key method 1
- *
- * -# Each host generates its own random material.
- * -# Each host uses its locally generated random material as %key data
- *    for encrypting and signing packets sent to the remote peer.
- * -# Each host then sends its random material to the remote peer, so that
- *    the remote peer can use that %key data for authenticating and
- *    decrypting received packets.
- *
- * @subsection key_generation_method_2 Key method 2
- *
- * -# The client generates random material in the following amounts:
- *    - Pre-master secret: 48 bytes
- *    - Client's PRF seed for master secret: 32 bytes
- *    - Client's PRF seed for %key expansion: 32 bytes
- * -# The client sends its share of random material to the server.
- * -# The server generates random material in the following amounts:
- *    - Server's PRF seed for master secret: 32 bytes
- *    - Server's PRF seed for %key expansion: 32 bytes
- * -# The server computes the %key expansion using its own and the
- *    client's random material.
- * -# The server sends its share of random material to the client.
- * -# The client computes the %key expansion using its own and the
- *    server's random material.
- *
- * %Key method 2 %key expansion is performed by the \c
- * generate_key_expansion() function.  Please refer to its source code for
- * details of the %key expansion process.
- *
- * @subsection key_generation_random Source of random material
- *
- * OpenVPN uses the either the OpenSSL library or the mbed TLS library as its
- * source of random material.
- *
- * In OpenSSL, the \c RAND_bytes() function is called
- * to supply cryptographically strong pseudo-random data.  The following links
- * contain more information on this subject:
- * - For OpenSSL's \c RAND_bytes() function:
- *   http://www.openssl.org/docs/crypto/RAND_bytes.html
- * - For OpenSSL's pseudo-random number generating system:
- *   http://www.openssl.org/docs/crypto/rand.html
- * - For OpenSSL's support for external crypto modules:
- *   http://www.openssl.org/docs/crypto/engine.html
- *
- * In mbed TLS, the Havege random number generator is used. For details, see
- * the mbed TLS documentation.
- *
- * @section key_generation_exchange Key exchange:
- *
- * The %key exchange process is initiated by the OpenVPN process running
- * in client mode.  After the initial three-way handshake has successfully
- * completed, the client sends its share of random material to the server,
- * after which the server responds with its part.  This process is
- * depicted below:
- *
-@verbatim
-  Client           Client                           Server          Server
-  State            Action                           Action          State
-----------  --------------------            --------------------  ----------
-
-             ... waiting until three-way handshake complete ...
-S_START                                                              S_START
-            key_method_?_write()
-            send to server  --> --> --> -->  receive from client
-S_SENT_KEY                                   key_method_?_read()
-                                                                   S_GOT_KEY
-                                            key_method_?_write()
-            receive from server  <-- <-- <-- <--  send to client
-            key_method_?_read()                                   S_SENT_KEY
-S_GOT_KEY
-          ... waiting until control channel fully synchronized ...
-S_ACTIVE                                                            S_ACTIVE
-@endverbatim
- *
- * For more information about the client and server state values, see the
- * \link control_processor Control Channel Processor module\endlink.
- *
- * Depending on which %key method is used, the \c ? in the function names
- * of the diagram above is a \c 1 or a \c 2.  For example, if %key method
- * 2 is used, that %key exchange would be started by the client calling \c
- * key_method_2_write().  These functions are called from the \link
- * control_processor Control Channel Processor module's\endlink \c
- * tls_process() function and control the %key generation and exchange
- * process as follows:
- * - %Key method 1 has been removed in OpenVPN 2.5
- * - %Key method 2:
- *   - \c key_method_2_write(): generate random material locally, and if
- *     in server mode generate %key expansion.
- *   - \c key_method_2_read(): read random material received from remote
- *     peer, and if in client mode generate %key expansion.
- *
- * @subsection key_generation_encapsulation Transmission of key material
- *
- * The OpenVPN client and server communicate with each other through their
- * control channel.  This means that all of the data transmitted over the
- * network, such as random material for %key generation, is encapsulated
- * in a TLS layer.  For more details, see the \link control_tls Control
- * Channel TLS module\endlink documentation.
- */
diff --git a/doc/doxygen/doc_mainpage.h b/doc/doxygen/doc_mainpage.h
deleted file mode 100644
index 6016d07..0000000
--- a/doc/doxygen/doc_mainpage.h
+++ /dev/null
@@ -1,161 +0,0 @@
-/*
- *  OpenVPN -- An application to securely tunnel IP networks
- *             over a single TCP/UDP port, with support for SSL/TLS-based
- *             session authentication and key exchange,
- *             packet encryption, packet authentication, and
- *             packet compression.
- *
- *  Copyright (C) 2010-2018 Fox Crypto B.V. <openvpn@fox-it.com>
- *
- *
- *  This program is free software; you can redistribute it and/or modify
- *  it under the terms of the GNU General Public License version 2
- *  as published by the Free Software Foundation.
- *
- *  This program is distributed in the hope that it will be useful,
- *  but WITHOUT ANY WARRANTY; without even the implied warranty of
- *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- *  GNU General Public License for more details.
- *
- *  You should have received a copy of the GNU General Public License along
- *  with this program; if not, write to the Free Software Foundation, Inc.,
- *  51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
- */
-
-/**
- * @file
- * Main page documentation file.
- */
-
-/**
- * @mainpage OpenVPN source code documentation
- *
- * This documentation describes the internal structure of OpenVPN.  It was
- * automatically generated from specially formatted comment blocks in
- * OpenVPN's source code using Doxygen.  (See
- * http://www.stack.nl/~dimitri/doxygen/ for more information on Doxygen)
- *
- * The \ref mainpage_modules "Modules section" below gives an introduction
- * into the high-level module concepts used throughout this documentation.
- * The \ref mainpage_relatedpages "Related Pages section" below describes
- * various special subjects related to OpenVPN's implementation which are
- * discussed in the related pages section.
- *
- * @section mainpage_modules Modules
- *
- * For the purpose of describing the internal structure of OpenVPN, this
- * documentation and the underlying source code has been broken up into a
- * number of conceptually well-defined parts, known as modules. Each
- * module plays a specific role within the OpenVPN process, and in most
- * cases each module has a clear interfacing strategy for interacting with
- * other modules.
- *
- * The following modules have been defined:
- * - Driver module:
- *   - The \link eventloop Main Event Loop\endlink: this module drives the
- *     event handling of OpenVPN.  It implements various types of
- *     select-loop which wait until an event happens, and then delegate
- *     the handling of that event to the appropriate module.
- * - Network interface modules:
- *   - The \link external_multiplexer External Multiplexer\endlink: this
- *     module sends and receives packets to and from remote OpenVPN peers
- *     over the external network interface.  It also takes care of
- *     demultiplexing received packets to their appropriate VPN tunnel and
- *     splitting control channel and data channel packets.
- *   - The \link internal_multiplexer Internal Multiplexer\endlink: this
- *     module sends and receives packets to and from locally reachable
- *     posts over the virtual tun/tap network interface.  It also takes
- *     care of determining through which VPN tunnel a received packet must
- *     be sent to reach its destination.
- * - Control channel modules:
- *   - The \link reliable Reliability Layer\endlink: this module offers a
- *     %reliable and sequential transport layer for control channel
- *     messages.
- *   - The \link control_tls Control Channel TLS module\endlink: this
- *     module offers a secure encapsulation of control channel messages
- *     using the TLS protocol.
- *   - The \link control_processor Control Channel Processor\endlink: his
- *     module manages the setup, maintenance, and shut down of VPN
- *     tunnels.
- * - Data channel modules:
- *   - The \link data_control Data Channel Control module\endlink: this
- *     module controls the processing of data channel packets and,
- *     depending on the settings of the packet's VPN tunnel, passes the
- *     packet to the three modules below for handling.
- *   - The \link data_crypto Data Channel Crypto module\endlink: this
- *     module performs security operations on data channel packets.
- *   - The \link fragmentation Data Channel Fragmentation module\endlink:
- *     this module offers fragmentation of data channel packets larger
- *     than the VPN tunnel's MTU.
- *   - The \link compression Data Channel Compression module\endlink: this
- *     module offers compression of data channel packets.
- *
- * @subsection mainpage_modules_example Example event: receiving a packet
- *
- * OpenVPN handles many types of events during operation.  These include
- * external events, such as network traffic being received, and internal
- * events, such as a %key session timing out causing renegotiation.  An
- * example event, receiving a packet over the network, is described here
- * together with which modules play what roles:
- * -# The \link eventloop Main Event Loop\endlink detects that a packet
- *    can be read from the external or the virtual tun/tap network
- *    interface.
- * -# The \link eventloop Main Event Loop\endlink calls the \link
- *    external_multiplexer External Multiplexer\endlink or \link
- *    internal_multiplexer Internal Multiplexer\endlink to read and
- *    process the packet.
- * -# The multiplexer module determines the type of packet and its
- *    destination, and passes the packet on to the appropriate handling
- *    module:
- *    - A control channel packet received by the \link
- *      external_multiplexer External Multiplexer\endlink is passed on
- *      through the \link reliable Reliability Layer\endlink and the \link
- *      control_tls Control Channel TLS module\endlink to the \link
- *      control_processor Control Channel Processor\endlink.
- *    - A data channel packet received by either multiplexer module is
- *      passed on to the \link data_control Data Channel Control
- *      module\endlink.
- * -# The packet is processed by the appropriate control channel or data
- *    channel modules.
- * -# If, after processing the packet, a resulting packet is generated
- *    that needs to be sent to a local or remote destination, it is given
- *    to the \link external_multiplexer External Multiplexer\endlink or
- *    \link internal_multiplexer Internal Multiplexer\endlink for sending.
- * -# If a packet is waiting to be sent by either multiplexer module and
- *    the \link eventloop Main Event Loop\endlink detects that data can be
- *    written to the associated network interface, it calls the
- *    multiplexer module to send the packet.
- *
- * @section mainpage_relatedpages Related pages
- *
- * This documentation includes a number of descriptions of various aspects
- * of OpenVPN and its implementation.  These are not directly related to
- * one module, function, or data structure, and are therefore listed
- * separately under "Related Pages".
- *
- * @subsection mainpage_relatedpages_key_generation Data channel key generation
- *
- * The @ref key_generation "Data channel key generation" related page
- * describes how, during VPN tunnel setup and renegotiation, OpenVPN peers
- * generate and exchange the %key material required for the symmetric
- * encryption/decryption and HMAC signing/verifying security operations
- * performed on data channel packets.
- *
- * @subsection mainpage_relatedpages_tunnel_state VPN tunnel state
- *
- * The @ref tunnel_state "Structure of VPN tunnel state storage" related
- * page describes how an OpenVPN process manages the state information
- * associated with its active VPN tunnels.
- *
- * @subsection mainpage_relatedpages_network_protocol Network protocol
- *
- * The @ref network_protocol "Network protocol" related page describes the
- * format and content of VPN tunnel packets exchanged between OpenVPN
- * peers.
- *
- * @subsection mainpage_relatedpages_memory_management Memory management
- *
- * The @ref memory_management "Memory management strategies" related page
- * gives a brief introduction into OpenVPN's memory %buffer library and
- * garbage collection facilities.
- */
diff --git a/doc/doxygen/doc_memory_management.h b/doc/doxygen/doc_memory_management.h
deleted file mode 100644
index 1f16328..0000000
--- a/doc/doxygen/doc_memory_management.h
+++ /dev/null
@@ -1,98 +0,0 @@
-/*
- *  OpenVPN -- An application to securely tunnel IP networks
- *             over a single TCP/UDP port, with support for SSL/TLS-based
- *             session authentication and key exchange,
- *             packet encryption, packet authentication, and
- *             packet compression.
- *
- *  Copyright (C) 2010-2018 Fox Crypto B.V. <openvpn@fox-it.com>
- *
- *
- *  This program is free software; you can redistribute it and/or modify
- *  it under the terms of the GNU General Public License version 2
- *  as published by the Free Software Foundation.
- *
- *  This program is distributed in the hope that it will be useful,
- *  but WITHOUT ANY WARRANTY; without even the implied warranty of
- *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- *  GNU General Public License for more details.
- *
- *  You should have received a copy of the GNU General Public License along
- *  with this program; if not, write to the Free Software Foundation, Inc.,
- *  51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
- */
-
-/**
- * @file
- * Memory management strategies documentation file.
- */
-
-/**
- * @page memory_management OpenVPN's memory management strategies
- *
- * This section describes several implementation details relating to
- * OpenVPN's memory management strategies.
- *
- * During operation, the OpenVPN process performs all kinds of operations
- * on blocks of data.  Receiving packets, encrypting content, prepending
- * headers, etc.  To make the programmer's job easier and to decrease the
- * likelihood of memory-related bugs, OpenVPN uses its own memory %buffer
- * library and garbage collection facilities.  These are described in
- * brief here.
- *
- * @section memory_management_buffer The buffer structure
- *
- * The \c buffer structure is a wrapper around a block of dynamically
- * allocated memory which keeps track of the block's capacity \c
- * buffer.capacity and location in memory \c buffer.data.  This structure
- * supports efficient prepending and appending within the allocated memory
- * through the use of offset \c buffer.offset and length \c buffer.len
- * fields.  See the \c buffer documentation for more details on the
- * structure itself.
- *
- * OpenVPN's %buffer library, implemented in the \c buffer.h and \c
- * buffer.c files, contains many utility functions for working with \c
- * buffer structures.  These functions facilitate common operations, such
- * as allocating, freeing, reading and writing to \c buffer structures,
- * and even offer several more advanced operations, such as string
- * matching and creating sub-buffers.
- *
- * Not only do these utility functions make working with \c buffer
- * structures easy, they also perform extensive error checking.  Each
- * function, where necessary, checks whether enough space is available
- * before performing its actions.  This minimizes the chance of bugs
- * leading to %buffer overflows and other vulnerabilities.
- *
- * @section memory_management_frame The frame structure
- *
- * The \c frame structure keeps track of the maximum allowed packet
- * geometries of a network connection.
- *
- * It is used, for example, to determine the size of \c buffer structures
- * in which to store data channel packets.  This is done by having each
- * data channel processing module register the maximum amount of extra
- * space it will need for header prepending and content expansion in the
- * \c frame structure. Once these parameters are known, \c buffer
- * structures can be allocated, based on the \c frame parameters, so that
- * they are large enough to allow efficient prepending of headers and
- * processing of content.
- *
- * @section memory_management_garbage Garbage collection
- *
- * OpenVPN has many sizable functions which perform various actions
- * depending on their %context.  This makes it difficult to know in advance
- * exactly how much memory must be allocated.  The garbage collection
- * facilities are used to keep track of dynamic allocations, thereby
- * allowing easy collective freeing of the allocated memory.
- *
- * The garbage collection system is implemented by the \c gc_arena and \c
- * gc_entry structures.  The arena represents a garbage collecting unit,
- * and contains a linked list of entries.  Each entry represents one block
- * of dynamically allocated memory.
- *
- * The garbage collection system also contains various utility functions
- * for working with the garbage collection structures.  These include
- * functions for initializing new arenas, allocating memory of a given
- * size and registering the allocation in an arena, and freeing all the
- * allocated memory associated with an arena.
- */
diff --git a/doc/doxygen/doc_protocol_overview.h b/doc/doxygen/doc_protocol_overview.h
deleted file mode 100644
index 0821222..0000000
--- a/doc/doxygen/doc_protocol_overview.h
+++ /dev/null
@@ -1,195 +0,0 @@
-/*
- *  OpenVPN -- An application to securely tunnel IP networks
- *             over a single TCP/UDP port, with support for SSL/TLS-based
- *             session authentication and key exchange,
- *             packet encryption, packet authentication, and
- *             packet compression.
- *
- *  Copyright (C) 2010-2018 Fox Crypto B.V. <openvpn@fox-it.com>
- *
- *
- *  This program is free software; you can redistribute it and/or modify
- *  it under the terms of the GNU General Public License version 2
- *  as published by the Free Software Foundation.
- *
- *  This program is distributed in the hope that it will be useful,
- *  but WITHOUT ANY WARRANTY; without even the implied warranty of
- *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- *  GNU General Public License for more details.
- *
- *  You should have received a copy of the GNU General Public License along
- *  with this program; if not, write to the Free Software Foundation, Inc.,
- *  51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
- */
-
-/**
- * @file Network protocol overview documentation file.
- */
-
-/**
- * @page network_protocol OpenVPN's network protocol
- *
- * Description of packet structure in OpenVPN's network protocol.
- *
- * This document describes the structure of packets exchanged between
- * OpenVPN peers.  It is based on the protocol description in the \c ssl.h
- * file.
- *
- * @section network_protocol_external Outer structure of packets exchanged between OpenVPN peers
- *
- * VPN tunnel packets are transported between OpenVPN peers using the UDP
- * or TCP protocols.  Their structure is described below.
- *
- * @subsection network_protocol_external_structure External packet structure
- *
- *  - packet length (16 bits, unsigned) [TCP-mode only]: always sent as
- *    plain text.  Since TCP is a stream protocol, this packet length
- *    defines the packetization of the stream.
- *  - packet opcode and key_id (8 bits) [TLS-mode only]:
- *     - package message type (high 5 bits)
- *     - key_id (low 3 bits): the key_id refers to an already negotiated
- *       TLS session.  OpenVPN seamlessly renegotiates the TLS session by
- *       using a new key_id for the new session.  Overlap (controlled by
- *       user definable parameters) between old and new TLS sessions is
- *       allowed, providing a seamless transition during tunnel operation.
- *  - payload (n bytes)
- *
- * @subsection network_protocol_external_types Message types
- *
- * The type of a VPN tunnel packet is indicated by its opcode.  The
- * following describes the various opcodes available.
- *
- *  - Control channel messages:
- *     - \ref P_CONTROL_HARD_RESET_CLIENT_V1 -- %Key method 1, initial %key
- *       from client, forget previous state.
- *     - \ref P_CONTROL_HARD_RESET_SERVER_V1 -- %Key method 1, initial %key
- *       from server, forget previous state.
- *     - \ref P_CONTROL_HARD_RESET_CLIENT_V2 -- %Key method 2, initial %key
- *       from client, forget previous state.
- *     - \ref P_CONTROL_HARD_RESET_SERVER_V2 -- %Key method 2, initial %key
- *       from server, forget previous state.
- *     - \ref P_CONTROL_SOFT_RESET_V1 -- New %key, with a graceful
- *       transition from old to new %key in the sense that a transition
- *       window exists where both the old or new key_id can be used.
- *     - \ref P_CONTROL_V1 -- Control channel packet (usually TLS
- *       ciphertext).
- *     - \ref P_ACK_V1 -- Acknowledgement for control channel packets
- *       received.
- *  - Data channel messages:
- *     - \ref P_DATA_V1 -- Data channel packet containing data channel
- *       ciphertext.
- *     - \ref P_DATA_V2 -- Data channel packet containing peer-id and data
- *       channel ciphertext.
- *
- * @subsection network_protocol_external_key_id Session IDs and Key IDs
- *
- * OpenVPN uses two different forms of packet identifiers:
- *  - The first form is 64 bits and is used for all control channel
- *    messages.  This form is referred to as a \c session_id.
- *  - Data channel messages on the other hand use a shortened form of 3
- *    bits for efficiency reasons since the vast majority of OpenVPN
- *    packets in an active tunnel will be data channel messages.  This
- *    form is referred to as a \c key_id.
- *
- * The control and data channels use independent packet-id sequences,
- * because the data channel is an unreliable channel while the control
- * channel is a %reliable channel.  Each use their own independent HMAC
- * keys.
- *
- * @subsection network_protocol_external_reliable Control channel reliability layer
- *
- * Control channel messages (\c P_CONTROL_* and \c P_ACK_* message types)
- * are TLS ciphertext packets which have been encapsulated inside of a
- * reliability layer.  The reliability layer is implemented as a
- * straightforward acknowledge and retransmit model.
- *
- * Acknowledgments of received messages can be encoded in either the
- * dedicated \c P_ACK_* record or they can be prepended to a \c
- * P_CONTROL_* message.
- *
- * See the \link reliable Reliability Layer\endlink module for a detailed
- * description.
- *
- * @section network_protocol_control Structure of control channel messages
- *
- * @subsection network_protocol_control_ciphertext Structure of ciphertext control channel messages
- *
- * Control channel packets in ciphertext form consist of the following
- * parts:
- *
- *  - local \c session_id (random 64 bit value to identify TLS session).
- *  - HMAC signature of entire encapsulation header for HMAC firewall
- *    [only if \c --tls-auth is specified] (usually 16 or 20 bytes).
- *  - packet-id for replay protection (4 or 8 bytes, includes sequence
- *    number and optional \c time_t timestamp).
- *  - acknowledgment packet-id array length (1 byte).
- *  - acknowledgment packet-id array (if length > 0).
- *  - acknowledgment remote session-id (if length > 0).
- *  - packet-id of this message (4 bytes).
- *  - TLS payload ciphertext (n bytes) (only for \c P_CONTROL_V1).
- *
- * Note that when \c --tls-auth is used, all message types are protected
- * with an HMAC signature, even the initial packets of the TLS handshake.
- * This makes it easy for OpenVPN to throw away bogus packets quickly,
- * without wasting resources on attempting a TLS handshake which will
- * ultimately fail.
- *
- * @subsection network_protocol_control_key_methods Control channel key methods
- *
- * Once the TLS session has been initialized and authenticated, the TLS
- * channel is used to exchange random %key material for bidirectional
- * cipher and HMAC keys which will be used to secure data channel packets.
- * OpenVPN currently implements two %key methods.  %Key method 1 directly
- * derives keys using random bits obtained from the \c rand_bytes() function.
- * %Key method 2 mixes random %key material from both sides of the connection
- * using the TLS PRF mixing function.  %Key method 2 is the preferred method and
- * is the default for OpenVPN 2.0+.
- *
- * The @ref key_generation "Data channel key generation" related page
- * describes the %key methods in more detail.
- *
- * @subsection network_protocol_control_plaintext Structure of plaintext control channel messages
- *
- *  - %Key method 1 (support removed in OpenVPN 2.5):
- *     - Cipher %key length in bytes (1 byte).
- *     - Cipher %key (n bytes).
- *     - HMAC %key length in bytes (1 byte).
- *     - HMAC %key (n bytes).
- *     - %Options string (n bytes, null terminated, client/server %options
- *       string should match).
- *  - %Key method 2:
- *     - Literal 0 (4 bytes).
- *     - %Key method (1 byte).
- *     - \c key_source structure (\c key_source.pre_master only defined
- *       for client -> server).
- *     - %Options string length, including null (2 bytes).
- *     - %Options string (n bytes, null terminated, client/server %options
- *       string must match).
- *     - [The username/password data below is optional, record can end at
- *       this point.]
- *     - Username string length, including null (2 bytes).
- *     - Username string (n bytes, null terminated).
- *     - Password string length, including null (2 bytes).
- *     - Password string (n bytes, null terminated).
- *
- * @section network_protocol_data Structure of data channel messages
- *
- * The P_DATA_* payload represents encapsulated tunnel packets which tend to be
- * either IP packets or Ethernet frames. This is essentially the "payload" of
- * the VPN. Data channel packets consist of a data channel header, and a
- * payload. There are two possible formats:
- *
- * @par P_DATA_V1
- * P_DATA_V1 packets have a 1-byte header, carrying the \ref P_DATA_V1 \c opcode
- * and \c key_id, followed by the payload:\n
- * <tt> [ 5-bit opcode | 3-bit key_id ] [ payload ] </tt>
- *
- * @par P_DATA_V2
- * P_DATA_V2 packets have the same 1-byte opcode/key_id, but carrying the \ref
- * P_DATA_V2 opcode, followed by a 3-byte peer-id, which uniquely identifies
- * the peer:\n
- * <tt> [ 5-bit opcode | 3-bit key_id ] [ 24-bit peer-id ] [ payload ] </tt>
- *
- * See @ref data_crypto for details on the data channel payload format.
- *
- */
diff --git a/doc/doxygen/doc_reliable.h b/doc/doxygen/doc_reliable.h
deleted file mode 100644
index 70556d7..0000000
--- a/doc/doxygen/doc_reliable.h
+++ /dev/null
@@ -1,48 +0,0 @@
-/*
- *  OpenVPN -- An application to securely tunnel IP networks
- *             over a single TCP/UDP port, with support for SSL/TLS-based
- *             session authentication and key exchange,
- *             packet encryption, packet authentication, and
- *             packet compression.
- *
- *  Copyright (C) 2010-2018 Fox Crypto B.V. <openvpn@fox-it.com>
- *
- *
- *  This program is free software; you can redistribute it and/or modify
- *  it under the terms of the GNU General Public License version 2
- *  as published by the Free Software Foundation.
- *
- *  This program is distributed in the hope that it will be useful,
- *  but WITHOUT ANY WARRANTY; without even the implied warranty of
- *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- *  GNU General Public License for more details.
- *
- *  You should have received a copy of the GNU General Public License along
- *  with this program; if not, write to the Free Software Foundation, Inc.,
- *  51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
- */
-
-/**
- * @file
- * Reliability Layer module documentation file.
- */
-
-/**
- * @defgroup reliable Reliability Layer module
- *
- * The Reliability Layer is part of OpenVPN's control channel.  It
- * provides a reliable and sequential transport mechanism for control
- * channel messages between OpenVPN peers.  This module forms the
- * interface between the \link external_multiplexer External
- * Multiplexer\endlink and the \link control_tls Control Channel TLS
- * module\endlink.
- *
- * @par UDP or TCP as VPN tunnel transport
- *
- * This is especially important when OpenVPN is configured to communicate
- * over UDP, because UDP does not offer a reliable and sequential
- * transport.  OpenVPN endpoints can also communicate over TCP which does
- * provide a reliable and sequential transport.  In both cases, using UDP
- * or TCP as an external transport, the internal Reliability Layer is
- * active.
- */
diff --git a/doc/doxygen/doc_tunnel_state.h b/doc/doxygen/doc_tunnel_state.h
deleted file mode 100644
index 46e750f..0000000
--- a/doc/doxygen/doc_tunnel_state.h
+++ /dev/null
@@ -1,154 +0,0 @@
-/*
- *  OpenVPN -- An application to securely tunnel IP networks
- *             over a single TCP/UDP port, with support for SSL/TLS-based
- *             session authentication and key exchange,
- *             packet encryption, packet authentication, and
- *             packet compression.
- *
- *  Copyright (C) 2010-2018 Fox Crypto B.V. <openvpn@fox-it.com>
- *
- *
- *  This program is free software; you can redistribute it and/or modify
- *  it under the terms of the GNU General Public License version 2
- *  as published by the Free Software Foundation.
- *
- *  This program is distributed in the hope that it will be useful,
- *  but WITHOUT ANY WARRANTY; without even the implied warranty of
- *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- *  GNU General Public License for more details.
- *
- *  You should have received a copy of the GNU General Public License along
- *  with this program; if not, write to the Free Software Foundation, Inc.,
- *  51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
- */
-
-/**
- * @file
- * VPN tunnel state documentation file.
- */
-
-/**
- * @page tunnel_state Structure of the VPN tunnel state storage
- *
- * This section describes how OpenVPN stores its VPN tunnel state during
- * operation.
- *
- * OpenVPN uses several data structures as storage containers for state
- * information of active VPN tunnels.  These are described in this
- * section, together with a little bit of history to help understand the
- * origin of the current architecture.
- *
- * Whether an OpenVPN process is running in client-mode or server-mode
- * determines whether it can support only one or multiple simultaneously
- * active VPN tunnels.  This consequently also determines how the
- * associated state information is wrapped up internally.  This section
- * gives an overview of the differences.
- *
- * @section tunnel_state_history Historic developments
- *
- * In the old v1.x series, an OpenVPN process managed only one single VPN
- * tunnel.  This allowed the VPN tunnel state to be stored together with
- * process-global information in one single \c context structure.
- *
- * This changed, however, in the v2.x series, as new OpenVPN versions
- * running in server-mode can support multiple simultaneously active VPN
- * tunnels.  This necessitated a redesign of the VPN tunnel state
- * container structures, and modification of the \link
- * external_multiplexer External Multiplexer\endlink and \link
- * internal_multiplexer Internal Multiplexer\endlink systems.  The
- * majority of these changes are only relevant for OpenVPN processes
- * running in server-mode, and the client-mode structure has remained very
- * similar to the v1.x single-tunnel form.
- *
- * @section tunnel_state_client Client-mode state
- *
- * An OpenVPN process running in client-mode can manage at most one single
- * VPN tunnel at any one time.  The state information for a client's VPN
- * tunnel is stored in a \c context structure.
- *
- * The \c context structure is created in the \c main() function.  That is
- * also where process-wide initialization takes place, such as parsing
- * command line %options and reading configuration files.  The \c context
- * is then passed to \c tunnel_point_to_point() which drives OpenVPN's
- * main event processing loop.  These functions are both part of the \link
- * eventloop Main Event Loop\endlink module.
- *
- * @subsection tunnel_state_client_init Initialization and cleanup
- *
- * Because there is only one \c context structure present, it can be
- * initialized and cleaned up from the client's main event processing
- * function.  Before the \c tunnel_point_to_point() function enters its
- * event loop, it calls \c init_instance_handle_signals() which calls \c
- * init_instance() to initialize the single \c context structure.  After
- * the event loop stops, it calls \c close_instance() to clean up the \c
- * context.
- *
- * @subsection tunnel_state_client_event Event processing
- *
- * When the main event processing loop activates the external or internal
- * multiplexer to handle a network event, it is not necessary to determine
- * which VPN tunnel the event is associated with, because there is only
- * one VPN tunnel active.
- *
- * @section tunnel_state_server Server-mode state
- *
- * An OpenVPN process running in server-mode can manage multiple
- * simultaneously active VPN tunnels.  For every VPN tunnel active, in
- * other words for every OpenVPN client which is connected to a server,
- * the OpenVPN server has one \c context structure in which it stores that
- * particular VPN tunnel's state information.
- *
- * @subsection tunnel_state_server_multi Multi_context and multi_instance structures
- *
- * To support multiple \c context structures, each is wrapped in a \c
- * multi_instance structure, and all the \c multi_instance structures are
- * registered in one single \c multi_context structure.  The \link
- * external_multiplexer External Multiplexer\endlink and \link
- * internal_multiplexer Internal Multiplexer\endlink then use the \c
- * multi_context to retrieve the correct \c multi_instance and \c context
- * associated with a given network address.
- *
- * @subsection tunnel_state_server_init Startup and initialization
- *
- * An OpenVPN process running in server-mode starts in the same \c main()
- * function as it would in client-mode.  The same process-wide
- * initialization is performed, and the resulting state and configuration
- * is stored in a \c context structure. The server-mode and client-mode
- * processes diverge when the \c main() function calls one of \c
- * tunnel_point_to_point() or \c tunnel_server().
- *
- * In server-mode, \c main() calls the \c tunnel_server() function, which
- * transfers control to \c tunnel_server_udp_single_threaded() or \c
- * tunnel_server_tcp() depending on the external transport protocol.
- *
- * These functions receive the \c context created in \c main().  This
- * object has a special status in server-mode, as it does not represent an
- * active VPN tunnel, but does contain process-wide configuration
- * parameters.  In the source code, it is often stored in "top" variables.
- * To distinguish this object from other instances of the same type, its
- * \c context.mode value is set to \c CM_TOP.  Other \c context objects,
- * which do represent active VPN tunnels, have a \c context.mode set to \c
- * CM_CHILD_UDP or \c CM_CHILD_TCP, depending on the external transport
- * protocol.
- *
- * Both \c tunnel_server_udp_single_threaded() and \c tunnel_server_tcp()
- * perform similar initialization.  In either case, a \c multi_context
- * structure is created, and it is initialized according to the
- * configuration stored in the top \c context by the \c multi_init() and
- * \c multi_top_init() functions.
- *
- * @subsection tunnel_state_server_tunnels Creating and destroying VPN tunnels
- *
- * When an OpenVPN client makes a new connection to a server, the server
- * creates a new \c context and \c multi_instance.  The latter is
- * registered in the \c multi_context, which makes it possible for the
- * external and internal multiplexers to retrieve the correct \c
- * multi_instance and \c context when a network event occurs.
- *
- * @subsection tunnel_state_server_cleanup Final cleanup
- *
- * After the main event loop exits, both \c
- * tunnel_server_udp_single_threaded() and \c tunnel_server_tcp() perform
- * similar cleanup.  They call \c multi_uninit() followed by \c
- * multi_top_free() to clean up the \c multi_context structure.
- */
diff --git a/doc/keying-material-exporter.txt b/doc/keying-material-exporter.txt
deleted file mode 100644
index 4c1addc..0000000
--- a/doc/keying-material-exporter.txt
+++ /dev/null
@@ -1,137 +0,0 @@
-OpenVPN                                             Daniel Kubec <niel@rtfm.cz>
-RFC-5705                                                          February 2015
-
-
-                Added support for TLS Keying Material Exporters
-
-Keying Material Exporter [RFC-5705] allow additional keying material to be
-derived from existing TLS channel. This exported keying material can then be
-used for a variety of purposes. TLS allows client and server to establish
-keying material for use in the upper layers between the TLS end-points and
-channel bindings is straightforward and well-defined mechanism how to
-authenticate other layers.
-
-
-OpenVPN Configuration
-
---keying-material-exporter label len
-
-Export Keying Material [RFC-5705] of len bytes (min. 16 bytes) using label in
-environment (exported_keying_material) for use by plugins in
-OPENVPN_PLUGIN_TLS_FINAL callback.
-
-Note that exporter labels have the potential to collide with existing PRF
-labels. In order to prevent this, labels MUST begin with "EXPORTER".
-(This option requires OpenSSL 1.0.1 or newer.)
-
-
-Use Cases:
-
-Secure bindings of AAA information to application layer
-
-   OpenVPN Client                   <------>                 OpenVPN Server
-   [KeyAgreement]                                            [KeyAgreement]
-
-   [TLSExportedKeyingMaterial]                  [TLSExportedKeyingMaterial]
-   [AAASessionKey]                                          [AAASessionKey]
-   Client                           <------>                         Server
-                      [Authenticated layer on top of (D)TLS]
-
-
-TLS side channel authentication and straightforward bindings of AAA information
-to application layer using well-defined mechanism.
-
-   OpenVPN Client                   <------>                 OpenVPN Server
-   [KeyAgreement]                                            [KeyAgreement]
-
-   [TLSExportedKeyingMaterial]                  [TLSExportedKeyingMaterial]
-   [DerivedAAABindingKey]                            [DerivedAAABindingKey]
-                                                  [AuthenticateBindingKeys]
-   Client                           ------->                         Server
-                             [Confidential channel]
-
-
-TLS Message flow for a full handshake
-
-   ClientHello                      -------->
-                                                               ServerHello
-                                                               Certificate*
-                                                         ServerKeyExchange*
-                                                        CertificateRequest*
-                                    <--------              ServerHelloDone
-   Certificate*
-   ClientKeyExchange
-   CertificateVerify*
-   [ChangeCipherSpec]
-   Finished                         -------->
-                                                        [ChangeCipherSpec]
-                                    <--------                     Finished
-
-   GenerateTLSBindingKey                             GenerateTLSBindingKey
-
-   Application Data                 <------->             Application Data
-
-
-Terminology
-
-   AAA                     Authentication, Authorization, and Accounting:
-                           functions that are generally required to control
-                           access to a service and support auditing.
-
-   Secure channel          a packet, datagram, octet stream connection, or
-                           sequence of connections between two end-points that
-                           affords cryptographic integrity and confidentiality
-                           to data exchanged over it.
-
-   Channel binding         the process of establishing that no man-in-the-middle
-                           exists between two end-points that have been
-                           authenticated using secure channel.
-
-   TLS Binding Key         Exported Keying Material [RFC5705]
-
-                           If no context is provided, it then computes:
-                           PRF(SecurityParameters.master_secret, label,
-                               SecurityParameters.client_random +
-                               SecurityParameters.server_random
-                           )[length]
-
-                           If context is provided, it computes:
-                           PRF(SecurityParameters.master_secret, label,
-                               SecurityParameters.client_random +
-                               SecurityParameters.server_random +
-                               context_value_length + context_value
-                           )[length]
-
-   AAA Binding Key         TLS side channel authentication based on secure
-                           channel bindings requires one more key derivation.
-
-                           SHA1(TLSExportedKeyingMaterial + ServerPublicKey)
-
-Reference
-
-   [OPENAAA]               "TLS side channel authentication and straightforward
-                            bindings of AAA information to application
-                            layer using well-defined mechanism."
-                           Daniel Kubec <niel@rtfm.cz>              March 2013
-                           https://github.com/n13l/openaaa
-
-   [RFC5705]               "Keying Material Exporters for TLS"
-                           E. Rescorla, RFC 5705 March 2010
-                           http://tools.ietf.org/html/rfc5705
-
-   [RFC5929]               "Channel Bindings for TLS"
-                           J. Altman, N. Williams, L. Zhu, RFC 5929, July 2010
-                           http://tools.ietf.org/html/rfc5929
-
-   [RFC4680]               "TLS Handshake Message for Supplemental Data"
-                           S. Santesson, RFC 4680, September 2006
-                           http://tools.ietf.org/html/rfc4680
-
-   [RFC5878]               "TLS Authorization Extension"
-                           M. Brown, R. Housley, RFC 5878, May 2010
-                           http://tools.ietf.org/html/rfc5878
-
-   [RFC5746]               "TLS Renegotiation Indication Extension"
-                           E. Rescorla, M. Raym, S. Dispensa, N. Oskov
-                           RFC 5746, February 2010
-                           http://tools.ietf.org/html/rfc5746
diff --git a/doc/man-sections/cipher-negotiation.rst b/doc/man-sections/cipher-negotiation.rst
deleted file mode 100644
index f143305..0000000
--- a/doc/man-sections/cipher-negotiation.rst
+++ /dev/null
@@ -1,96 +0,0 @@
-Data channel cipher negotiation
-===============================
-
-OpenVPN 2.4 and higher have the capability to negotiate the data cipher that
-is used to encrypt data packets. This section describes the mechanism in more detail and the
-different backwards compatibility mechanism with older server and clients.
-
-OpenVPN 2.5 and higher behaviour
---------------------------------
-When both client and server are at least running OpenVPN 2.5, that the order of
-the ciphers of the server's ``--data-ciphers`` is used to pick the the data cipher.
-That means that the first cipher in that list that is also in the client's
-``--data-ciphers`` list is chosen. If no common cipher is found the client is rejected
-with a AUTH_FAILED message (as seen in client log):
-
-    AUTH: Received control message: AUTH_FAILED,Data channel cipher negotiation failed (no shared cipher)
-
-OpenVPN 2.5 will only allow the ciphers specified in ``--data-ciphers``. To ensure
-backwards compatibility also if a cipher is specified using the ``--cipher`` option
-it is automatically added to this list. If both options are unset the default is
-:code:`AES-256-GCM:AES-128-GCM`.
-
-OpenVPN 2.4 clients
--------------------
-The negotiation support in OpenVPN 2.4 was the first iteration of the implementation
-and still had some quirks. Its main goal was "upgrade to AES-256-GCM when possible".
-An OpenVPN 2.4 client that is built against a crypto library that supports AES in GCM
-mode and does not have ``--ncp-disable`` will always announce support for
-`AES-256-GCM` and `AES-128-GCM` to a server by sending :code:`IV_NCP=2`.
-
-This only causes a problem if ``--ncp-ciphers`` option has been changed from the
-default of :code:`AES-256-GCM:AES-128-GCM` to a value that does not include
-these two ciphers. When a OpenVPN servers try to use `AES-256-GCM` or
-`AES-128-GCM` the connection will then fail. It is therefore recommended to
-always have the `AES-256-GCM` and `AES-128-GCM` ciphers to the ``--ncp-ciphers``
-options to avoid this behaviour.
-
-OpenVPN 3 clients
------------------
-Clients based on the OpenVPN 3.x library (https://github.com/openvpn/openvpn3/)
-do not have a configurable ``--ncp-ciphers`` or ``--data-cipher`` option. Instead
-these clients will announce support for all their supported AEAD ciphers
-(`AES-256-GCM`, `AES-128-GCM` and in newer versions also `Chacha20-Poly1305`).
-
-To support OpenVPN 3.x based clients at least one of these ciphers needs to be
-included in the server's ``--data-ciphers`` option.
-
-
-OpenVPN 2.3 and older clients (and clients with ``--ncp-disable``)
-------------------------------------------------------------------
-When a client without cipher negotiation support connects to a server the
-cipher specified with the ``--cipher`` option in the client configuration
-must be included in the ``--data-ciphers`` option of the server to allow
-the client to connect. Otherwise the client will be sent the ``AUTH_FAILED``
-message that indicates no shared cipher.
-
-If the client is 2.3 or older and has been configured with the
-``--enable-small``  :code:`./configure` argument, using
-``data-ciphers-fallback cipher`` in the server config file with the explicit
-cipher used by the client is necessary.
-
-OpenVPN 2.4 server
-------------------
-When a client indicates support for `AES-128-GCM` and `AES-256-GCM`
-(with ``IV_NCP=2``) an OpenVPN 2.4 server will send the first
-cipher of the ``--ncp-ciphers`` to the OpenVPN client regardless of what
-the cipher is. To emulate the behaviour of an OpenVPN 2.4 client as close
-as possible and have compatibility to a setup that depends on this quirk,
-adding  `AES-128-GCM` and `AES-256-GCM` to the client's ``--data-ciphers``
-option is required. OpenVPN 2.5+ will only announce the ``IV_NCP=2`` flag if
-those ciphers are present.
-
-OpenVPN 2.3 and older servers (and servers with ``--ncp-disable``)
-------------------------------------------------------------------
-The cipher used by the server must be included in ``--data-ciphers`` to
-allow the client connecting to a server without cipher negotiation
-support.
-(For compatibility OpenVPN 2.5 will also accept the cipher set with
-``--cipher``)
-
-If the server is 2.3 or older and  has been configured with the
-``--enable-small`` :code:`./configure` argument, adding
-``data-ciphers-fallback cipher`` to the client config with the explicit
-cipher used by the server is necessary.
-
-Blowfish in CBC mode (BF-CBC) deprecation
-------------------------------------------
-The ``--cipher`` option defaulted to ``BF-CBC`` in OpenVPN 2.4 and older
-version. The default was never changed to ensure backwards compatibility.
-In OpenVPN 2.5 this behaviour has now been changed so that if the ``--cipher``
-is not explicitly set it does not allow the weak ``BF-CBC`` cipher any more
-and needs to explicitly added as ``--cipher BFC-CBC`` or added to
-``-data-ciphers``.
-
-We strongly recommend to switching away from BF-CBC to a
-more secure cipher as soon as possible instead.
diff --git a/doc/man-sections/vpn-network-options.rst b/doc/man-sections/vpn-network-options.rst
index 7100c1a..825dd1c 100644
--- a/doc/man-sections/vpn-network-options.rst
+++ b/doc/man-sections/vpn-network-options.rst
@@ -93,12 +93,18 @@ routing.
   or :code:`tap`.
 
 --dhcp-option args
-  Set additional network settings via DHCP.  On Windows, this is parsed by
-  the ``tap-windows6`` or ``wintun`` driver.  On other platforms these
-  options can be picked up by an ``--up`` script or plug-in if it has been
-  pushed by the OpenVPN server.  The option will then be saved in the
-  client's environment before the ``--up`` script is called, under the name
-  :code:`foreign_option_{n}`.
+  Set additional network parameters on supported platforms. May be specified
+  on the client or pushed from the server. On Windows these options are
+  handled by the ``tap-windows6`` driver by default or directly by OpenVPN
+  if dhcp is disabled or the ``wintun`` driver is in use. The
+  ``OpenVPN for Android`` client also handles them internally.
+
+  On all other platforms these options are only saved in the client's
+  environment under the name :code:`foreign_options_{n}` before the
+  ``--up`` script is called. A plugin or an ``--up`` script must be used to
+  pick up and interpret these as required. Many Linux distributions include
+  such scripts and some third-party user interfaces such as tunnelblick also
+  come with scripts that process these options.
 
   Valid syntax:
   ::
@@ -108,6 +114,11 @@ routing.
   :code:`DOMAIN` ``name``
         Set Connection-specific DNS Suffix to :code:`name`.
 
+  :code:`DOMAIN-SEARCH` ``name``
+        Add :code:`name` to the domain search list.
+        Repeat this option to add more entries. Up to
+        10 domains are supported.
+
   :code:`DNS` ``address``
         Set primary domain name server IPv4 or IPv6 address.
         Repeat this option to set secondary DNS server addresses.
diff --git a/doc/openvpn.8 b/doc/openvpn.8
new file mode 100644
index 0000000..b914f32
--- /dev/null
+++ b/doc/openvpn.8
@@ -0,0 +1,6954 @@
+.\" Man page generated from reStructuredText.
+.
+.TH OPENVPN 8 "" "" "System Manager's Manual"
+.SH NAME
+openvpn \- Secure IP tunnel daemon
+.
+.nr rst2man-indent-level 0
+.
+.de1 rstReportMargin
+\\$1 \\n[an-margin]
+level \\n[rst2man-indent-level]
+level margin: \\n[rst2man-indent\\n[rst2man-indent-level]]
+-
+\\n[rst2man-indent0]
+\\n[rst2man-indent1]
+\\n[rst2man-indent2]
+..
+.de1 INDENT
+.\" .rstReportMargin pre:
+. RS \\$1
+. nr rst2man-indent\\n[rst2man-indent-level] \\n[an-margin]
+. nr rst2man-indent-level +1
+.\" .rstReportMargin post:
+..
+.de UNINDENT
+. RE
+.\" indent \\n[an-margin]
+.\" old: \\n[rst2man-indent\\n[rst2man-indent-level]]
+.nr rst2man-indent-level -1
+.\" new: \\n[rst2man-indent\\n[rst2man-indent-level]]
+.in \\n[rst2man-indent\\n[rst2man-indent-level]]u
+..
+.SH SYNOPSIS
+.nf
+\fBopenvpn\fP [ options ... ]
+\fBopenvpn\fP  \fB\-\-help\fP
+.fi
+.sp
+.SH INTRODUCTION
+.sp
+OpenVPN is an open source VPN daemon by James Yonan. Because OpenVPN
+tries to be a universal VPN tool offering a great deal of flexibility,
+there are a lot of options on this manual page. If you\(aqre new to
+OpenVPN, you might want to skip ahead to the examples section where you
+will see how to construct simple VPNs on the command line without even
+needing a configuration file.
+.sp
+Also note that there\(aqs more documentation and examples on the OpenVPN
+web site: \fI\%https://openvpn.net/\fP
+.sp
+And if you would like to see a shorter version of this manual, see the
+openvpn usage message which can be obtained by running \fBopenvpn\fP
+without any parameters.
+.SH DESCRIPTION
+.sp
+OpenVPN is a robust and highly flexible VPN daemon. OpenVPN supports
+SSL/TLS security, ethernet bridging, TCP or UDP tunnel transport through
+proxies or NAT, support for dynamic IP addresses and DHCP, scalability
+to hundreds or thousands of users, and portability to most major OS
+platforms.
+.sp
+OpenVPN is tightly bound to the OpenSSL library, and derives much of its
+crypto capabilities from it.
+.sp
+OpenVPN supports conventional encryption using a pre\-shared secret key
+\fB(Static Key mode)\fP or public key security \fB(SSL/TLS mode)\fP using
+client & server certificates. OpenVPN also supports non\-encrypted
+TCP/UDP tunnels.
+.sp
+OpenVPN is designed to work with the \fBTUN/TAP\fP virtual networking
+interface that exists on most platforms.
+.sp
+Overall, OpenVPN aims to offer many of the key features of IPSec but
+with a relatively lightweight footprint.
+.SH OPTIONS
+.sp
+OpenVPN allows any option to be placed either on the command line or in
+a configuration file. Though all command line options are preceded by a
+double\-leading\-dash ("\-\-"), this prefix can be removed when an option is
+placed in a configuration file.
+.SS Generic Options
+.sp
+This section covers generic options which are accessible regardless of
+which mode OpenVPN is configured as.
+.INDENT 0.0
+.TP
+.B \-\-help
+Show options.
+.TP
+.B \-\-auth\-nocache
+Don\(aqt cache \fB\-\-askpass\fP or \fB\-\-auth\-user\-pass\fP username/passwords in
+virtual memory.
+.sp
+If specified, this directive will cause OpenVPN to immediately forget
+username/password inputs after they are used. As a result, when OpenVPN
+needs a username/password, it will prompt for input from stdin, which
+may be multiple times during the duration of an OpenVPN session.
+.sp
+When using \fB\-\-auth\-nocache\fP in combination with a user/password file
+and \fB\-\-chroot\fP or \fB\-\-daemon\fP, make sure to use an absolute path.
+.sp
+This directive does not affect the \fB\-\-http\-proxy\fP username/password.
+It is always cached.
+.TP
+.BI \-\-cd \ dir
+Change directory to \fBdir\fP prior to reading any files such as
+configuration files, key files, scripts, etc. \fBdir\fP should be an
+absolute path, with a leading "/", and without any references to the
+current directory such as \fB\&.\fP or \fB\&..\fP\&.
+.sp
+This option is useful when you are running OpenVPN in \fB\-\-daemon\fP mode,
+and you want to consolidate all of your OpenVPN control files in one
+location.
+.TP
+.BI \-\-chroot \ dir
+Chroot to \fBdir\fP after initialization. \fB\-\-chroot\fP essentially
+redefines \fBdir\fP as being the top level directory tree (/). OpenVPN
+will therefore be unable to access any files outside this tree. This can
+be desirable from a security standpoint.
+.sp
+Since the chroot operation is delayed until after initialization, most
+OpenVPN options that reference files will operate in a pre\-chroot
+context.
+.sp
+In many cases, the \fBdir\fP parameter can point to an empty directory,
+however complications can result when scripts or restarts are executed
+after the chroot operation.
+.sp
+Note: The SSL library will probably need /dev/urandom to be available
+inside the chroot directory \fBdir\fP\&. This is because SSL libraries
+occasionally need to collect fresh random. Newer linux kernels and some
+BSDs implement a getrandom() or getentropy() syscall that removes the
+need for /dev/urandom to be available.
+.TP
+.BI \-\-config \ file
+Load additional config options from \fBfile\fP where each line corresponds
+to one command line option, but with the leading \(aq\-\-\(aq removed.
+.sp
+If \fB\-\-config file\fP is the only option to the openvpn command, the
+\fB\-\-config\fP can be removed, and the command can be given as \fBopenvpn
+file\fP
+.sp
+Note that configuration files can be nested to a reasonable depth.
+.sp
+Double quotation or single quotation characters ("", \(aq\(aq) can be used to
+enclose single parameters containing whitespace, and "#" or ";"
+characters in the first column can be used to denote comments.
+.sp
+Note that OpenVPN 2.0 and higher performs backslash\-based shell escaping
+for characters not in single quotations, so the following mappings
+should be observed:
+.INDENT 7.0
+.INDENT 3.5
+.sp
+.nf
+.ft C
+\e\e       Maps to a single backslash character (\e).
+\e"       Pass a literal doublequote character ("), don\(aqt
+         interpret it as enclosing a parameter.
+\e[SPACE] Pass a literal space or tab character, don\(aqt
+         interpret it as a parameter delimiter.
+.ft P
+.fi
+.UNINDENT
+.UNINDENT
+.sp
+For example on Windows, use double backslashes to represent pathnames:
+.INDENT 7.0
+.INDENT 3.5
+.sp
+.nf
+.ft C
+secret "c:\e\eOpenVPN\e\esecret.key"
+.ft P
+.fi
+.UNINDENT
+.UNINDENT
+.sp
+For examples of configuration files, see
+\fI\%https://openvpn.net/community\-resources/how\-to/\fP
+.sp
+Here is an example configuration file:
+.INDENT 7.0
+.INDENT 3.5
+.sp
+.nf
+.ft C
+#
+# Sample OpenVPN configuration file for
+# using a pre\-shared static key.
+#
+# \(aq#\(aq or \(aq;\(aq may be used to delimit comments.
+
+# Use a dynamic tun device.
+dev tun
+
+# Our remote peer
+remote mypeer.mydomain
+
+# 10.1.0.1 is our local VPN endpoint
+# 10.1.0.2 is our remote VPN endpoint
+ifconfig 10.1.0.1 10.1.0.2
+
+# Our pre\-shared static key
+secret static.key
+.ft P
+.fi
+.UNINDENT
+.UNINDENT
+.TP
+.BI \-\-daemon \ progname
+Become a daemon after all initialization functions are completed. This
+option will cause all message and error output to be sent to the syslog
+file (such as \fB/var/log/messages\fP), except for the output of
+scripts and ifconfig commands, which will go to \fB/dev/null\fP unless
+otherwise redirected. The syslog redirection occurs immediately at the
+point that \fB\-\-daemon\fP is parsed on the command line even though the
+daemonization point occurs later. If one of the \fB\-\-log\fP options is
+present, it will supersede syslog redirection.
+.sp
+The optional \fBprogname\fP parameter will cause OpenVPN to report its
+program name to the system logger as \fBprogname\fP\&. This can be useful in
+linking OpenVPN messages in the syslog file with specific tunnels. When
+unspecified, \fBprogname\fP defaults to "openvpn".
+.sp
+When OpenVPN is run with the \fB\-\-daemon\fP option, it will try to delay
+daemonization until the majority of initialization functions which are
+capable of generating fatal errors are complete. This means that
+initialization scripts can test the return status of the openvpn command
+for a fairly reliable indication of whether the command has correctly
+initialized and entered the packet forwarding event loop.
+.sp
+In OpenVPN, the vast majority of errors which occur after initialization
+are non\-fatal.
+.sp
+Note: as soon as OpenVPN has daemonized, it can not ask for usernames,
+passwords, or key pass phrases anymore. This has certain consequences,
+namely that using a password\-protected private key will fail unless the
+\fB\-\-askpass\fP option is used to tell OpenVPN to ask for the pass phrase
+(this requirement is new in v2.3.7, and is a consequence of calling
+daemon() before initializing the crypto layer).
+.sp
+Further, using \fB\-\-daemon\fP together with \fB\-\-auth\-user\-pass\fP (entered
+on console) and \fB\-\-auth\-nocache\fP will fail as soon as key
+renegotiation (and reauthentication) occurs.
+.TP
+.B \-\-disable\-occ
+Don\(aqt output a warning message if option inconsistencies are detected
+between peers. An example of an option inconsistency would be where one
+peer uses \fB\-\-dev tun\fP while the other peer uses \fB\-\-dev tap\fP\&.
+.sp
+Use of this option is discouraged, but is provided as a temporary fix in
+situations where a recent version of OpenVPN must connect to an old
+version.
+.TP
+.BI \-\-engine \ engine\-name
+Enable OpenSSL hardware\-based crypto engine functionality.
+.sp
+If \fBengine\-name\fP is specified, use a specific crypto engine. Use the
+\fB\-\-show\-engines\fP standalone option to list the crypto engines which
+are supported by OpenSSL.
+.TP
+.B \-\-fast\-io
+(Experimental) Optimize TUN/TAP/UDP I/O writes by avoiding a call to
+poll/epoll/select prior to the write operation. The purpose of such a
+call would normally be to block until the device or socket is ready to
+accept the write. Such blocking is unnecessary on some platforms which
+don\(aqt support write blocking on UDP sockets or TUN/TAP devices. In such
+cases, one can optimize the event loop by avoiding the poll/epoll/select
+call, improving CPU efficiency by 5% to 10%.
+.sp
+This option can only be used on non\-Windows systems, when \fB\-\-proto
+udp\fP is specified, and when \fB\-\-shaper\fP is NOT specified.
+.TP
+.BI \-\-group \ group
+Similar to the \fB\-\-user\fP option, this option changes the group ID of
+the OpenVPN process to \fBgroup\fP after initialization.
+.TP
+.BI \-\-ignore\-unknown\-option \ args
+Valid syntax:
+.INDENT 7.0
+.INDENT 3.5
+.sp
+.nf
+.ft C
+ignore\-unknown\-options opt1 opt2 opt3 ... optN
+.ft P
+.fi
+.UNINDENT
+.UNINDENT
+.sp
+When one of options \fBopt1 ... optN\fP is encountered in the configuration
+file the configuration file parsing does not fail if this OpenVPN version
+does not support the option. Multiple \fB\-\-ignore\-unknown\-option\fP options
+can be given to support a larger number of options to ignore.
+.sp
+This option should be used with caution, as there are good security
+reasons for having OpenVPN fail if it detects problems in a config file.
+Having said that, there are valid reasons for wanting new software
+features to gracefully degrade when encountered by older software
+versions.
+.sp
+\fB\-\-ignore\-unknown\-option\fP is available since OpenVPN 2.3.3.
+.TP
+.BI \-\-iproute \ cmd
+Set alternate command to execute instead of default \fBiproute2\fP command.
+May be used in order to execute OpenVPN in unprivileged environment.
+.TP
+.BI \-\-keying\-material\-exporter \ args
+Save Exported Keying Material [RFC5705] of len bytes (must be between 16
+and 4095 bytes) using \fBlabel\fP in environment
+(\fBexported_keying_material\fP) for use by plugins in
+\fBOPENVPN_PLUGIN_TLS_FINAL\fP callback.
+.sp
+Valid syntax:
+.INDENT 7.0
+.INDENT 3.5
+.sp
+.nf
+.ft C
+keying\-material\-exporter label len
+.ft P
+.fi
+.UNINDENT
+.UNINDENT
+.sp
+Note that exporter \fBlabels\fP have the potential to collide with existing
+PRF labels. In order to prevent this, labels \fIMUST\fP begin with
+\fBEXPORTER\fP\&.
+.TP
+.B \-\-mlock
+Disable paging by calling the POSIX mlockall function. Requires that
+OpenVPN be initially run as root (though OpenVPN can subsequently
+downgrade its UID using the \fB\-\-user\fP option).
+.sp
+Using this option ensures that key material and tunnel data are never
+written to disk due to virtual memory paging operations which occur
+under most modern operating systems. It ensures that even if an attacker
+was able to crack the box running OpenVPN, he would not be able to scan
+the system swap file to recover previously used ephemeral keys, which
+are used for a period of time governed by the \fB\-\-reneg\fP options (see
+below), then are discarded.
+.sp
+The downside of using \fB\-\-mlock\fP is that it will reduce the amount of
+physical memory available to other applications.
+.TP
+.BI \-\-nice \ n
+Change process priority after initialization (\fBn\fP greater than 0 is
+lower priority, \fBn\fP less than zero is higher priority).
+.TP
+.B \-\-persist\-key
+Don\(aqt re\-read key files across \fBSIGUSR1\fP or \fB\-\-ping\-restart\fP\&.
+.sp
+This option can be combined with \fB\-\-user nobody\fP to allow restarts
+triggered by the \fBSIGUSR1\fP signal. Normally if you drop root
+privileges in OpenVPN, the daemon cannot be restarted since it will now
+be unable to re\-read protected key files.
+.sp
+This option solves the problem by persisting keys across \fBSIGUSR1\fP
+resets, so they don\(aqt need to be re\-read.
+.TP
+.BI \-\-remap\-usr1 \ signal
+Control whether internally or externally generated \fBSIGUSR1\fP signals
+are remapped to \fBSIGHUP\fP (restart without persisting state) or
+SIGTERM (exit).
+.sp
+\fBsignal\fP can be set to \fBSIGHUP\fP or \fBSIGTERM\fP\&. By default,
+no remapping occurs.
+.TP
+.BI \-\-script\-security \ level
+This directive offers policy\-level control over OpenVPN\(aqs usage of
+external programs and scripts. Lower \fBlevel\fP values are more
+restrictive, higher values are more permissive. Settings for \fBlevel\fP:
+.INDENT 7.0
+.TP
+.B \fB0\fP
+Strictly no calling of external programs.
+.TP
+.B \fB1\fP
+(Default) Only call built\-in executables such as ifconfig,
+ip, route, or netsh.
+.TP
+.B \fB2\fP
+Allow calling of built\-in executables and user\-defined
+scripts.
+.TP
+.B \fB3\fP
+Allow passwords to be passed to scripts via environmental
+variables (potentially unsafe).
+.UNINDENT
+.sp
+OpenVPN releases before v2.3 also supported a \fBmethod\fP flag which
+indicated how OpenVPN should call external commands and scripts. This
+could be either \fBexecve\fP or \fBsystem\fP\&. As of OpenVPN 2.3, this
+flag is no longer accepted. In most *nix environments the execve()
+approach has been used without any issues.
+.sp
+Some directives such as \fB\-\-up\fP allow options to be passed to the
+external script. In these cases make sure the script name does not
+contain any spaces or the configuration parser will choke because it
+can\(aqt determine where the script name ends and script options start.
+.sp
+To run scripts in Windows in earlier OpenVPN versions you needed to
+either add a full path to the script interpreter which can parse the
+script or use the \fBsystem\fP flag to run these scripts. As of OpenVPN
+2.3 it is now a strict requirement to have full path to the script
+interpreter when running non\-executables files. This is not needed for
+executable files, such as .exe, .com, .bat or .cmd files. For example,
+if you have a Visual Basic script, you must use this syntax now:
+.INDENT 7.0
+.INDENT 3.5
+.sp
+.nf
+.ft C
+\-\-up \(aqC:\e\eWindows\e\eSystem32\e\ewscript.exe C:\e\eProgram\e Files\e\eOpenVPN\e\econfig\e\emy\-up\-script.vbs\(aq
+.ft P
+.fi
+.UNINDENT
+.UNINDENT
+.sp
+Please note the single quote marks and the escaping of the backslashes
+(\e) and the space character.
+.sp
+The reason the support for the \fBsystem\fP flag was removed is due to
+the security implications with shell expansions when executing scripts
+via the \fBsystem()\fP call.
+.TP
+.BI \-\-setcon \ context
+Apply SELinux \fBcontext\fP after initialization. This essentially
+provides the ability to restrict OpenVPN\(aqs rights to only network I/O
+operations, thanks to SELinux. This goes further than \fB\-\-user\fP and
+\fB\-\-chroot\fP in that those two, while being great security features,
+unfortunately do not protect against privilege escalation by
+exploitation of a vulnerable system call. You can of course combine all
+three, but please note that since setcon requires access to /proc you
+will have to provide it inside the chroot directory (e.g. with mount
+\-\-bind).
+.sp
+Since the setcon operation is delayed until after initialization,
+OpenVPN can be restricted to just network\-related system calls, whereas
+by applying the context before startup (such as the OpenVPN one provided
+in the SELinux Reference Policies) you will have to allow many things
+required only during initialization.
+.sp
+Like with chroot, complications can result when scripts or restarts are
+executed after the setcon operation, which is why you should really
+consider using the \fB\-\-persist\-key\fP and \fB\-\-persist\-tun\fP options.
+.TP
+.BI \-\-status \ args
+Write operational status to \fBfile\fP every \fBn\fP seconds.
+.sp
+Valid syntaxes:
+.INDENT 7.0
+.INDENT 3.5
+.sp
+.nf
+.ft C
+status file
+status file n
+.ft P
+.fi
+.UNINDENT
+.UNINDENT
+.sp
+Status can also be written to the syslog by sending a \fBSIGUSR2\fP
+signal.
+.sp
+With multi\-client capability enabled on a server, the status file
+includes a list of clients and a routing table. The output format can be
+controlled by the \fB\-\-status\-version\fP option in that case.
+.sp
+For clients or instances running in point\-to\-point mode, it will contain
+the traffic statistics.
+.TP
+.BI \-\-status\-version \ n
+Set the status file format version number to \fBn\fP\&.
+.sp
+This only affects the status file on servers with multi\-client
+capability enabled.  Valid status version values:
+.INDENT 7.0
+.TP
+.B \fB1\fP
+Traditional format (default). The client list contains the
+following fields comma\-separated: Common Name, Real Address, Bytes
+Received, Bytes Sent, Connected Since.
+.TP
+.B \fB2\fP
+A more reliable format for external processing. Compared to
+version \fB1\fP, the client list contains some additional fields:
+Virtual Address, Virtual IPv6 Address, Username, Client ID, Peer ID,
+Data Channel Cipher. Future versions may extend the number of fields.
+.TP
+.B \fB3\fP
+Identical to \fB2\fP, but fields are tab\-separated.
+.UNINDENT
+.TP
+.B \-\-test\-crypto
+Do a self\-test of OpenVPN\(aqs crypto options by encrypting and decrypting
+test packets using the data channel encryption options specified above.
+This option does not require a peer to function, and therefore can be
+specified without \fB\-\-dev\fP or \fB\-\-remote\fP\&.
+.sp
+The typical usage of \fB\-\-test\-crypto\fP would be something like this:
+.INDENT 7.0
+.INDENT 3.5
+.sp
+.nf
+.ft C
+openvpn \-\-test\-crypto \-\-secret key
+.ft P
+.fi
+.UNINDENT
+.UNINDENT
+.sp
+or
+.INDENT 7.0
+.INDENT 3.5
+.sp
+.nf
+.ft C
+openvpn \-\-test\-crypto \-\-secret key \-\-verb 9
+.ft P
+.fi
+.UNINDENT
+.UNINDENT
+.sp
+This option is very useful to test OpenVPN after it has been ported to a
+new platform, or to isolate problems in the compiler, OpenSSL crypto
+library, or OpenVPN\(aqs crypto code. Since it is a self\-test mode,
+problems with encryption and authentication can be debugged
+independently of network and tunnel issues.
+.TP
+.BI \-\-tmp\-dir \ dir
+Specify a directory \fBdir\fP for temporary files. This directory will be
+used by openvpn processes and script to communicate temporary data with
+openvpn main process. Note that the directory must be writable by the
+OpenVPN process after it has dropped it\(aqs root privileges.
+.sp
+This directory will be used by in the following cases:
+.INDENT 7.0
+.IP \(bu 2
+\fB\-\-client\-connect\fP scripts and \fBOPENVPN_PLUGIN_CLIENT_CONNECT\fP
+plug\-in hook to dynamically generate client\-specific configuration
+\fBclient_connect_config_file\fP and return success/failure via
+\fBclient_connect_deferred_file\fP when using deferred client connect
+method
+.IP \(bu 2
+\fBOPENVPN_PLUGIN_AUTH_USER_PASS_VERIFY\fP plug\-in hooks returns
+success/failure via \fBauth_control_file\fP when using deferred auth
+method
+.IP \(bu 2
+\fBOPENVPN_PLUGIN_ENABLE_PF\fP plugin hook to pass filtering rules
+via \fBpf_file\fP
+.UNINDENT
+.TP
+.B \-\-use\-prediction\-resistance
+Enable prediction resistance on mbed TLS\(aqs RNG.
+.sp
+Enabling prediction resistance causes the RNG to reseed in each call for
+random. Reseeding this often can quickly deplete the kernel entropy
+pool.
+.sp
+If you need this option, please consider running a daemon that adds
+entropy to the kernel pool.
+.TP
+.BI \-\-user \ user
+Change the user ID of the OpenVPN process to \fBuser\fP after
+initialization, dropping privileges in the process. This option is
+useful to protect the system in the event that some hostile party was
+able to gain control of an OpenVPN session. Though OpenVPN\(aqs security
+features make this unlikely, it is provided as a second line of defense.
+.sp
+By setting \fBuser\fP to \fBnobody\fP or somebody similarly unprivileged,
+the hostile party would be limited in what damage they could cause. Of
+course once you take away privileges, you cannot return them to an
+OpenVPN session. This means, for example, that if you want to reset an
+OpenVPN daemon with a \fBSIGUSR1\fP signal (for example in response to
+a DHCP reset), you should make use of one or more of the \fB\-\-persist\fP
+options to ensure that OpenVPN doesn\(aqt need to execute any privileged
+operations in order to restart (such as re\-reading key files or running
+\fBifconfig\fP on the TUN device).
+.TP
+.BI \-\-writepid \ file
+Write OpenVPN\(aqs main process ID to \fBfile\fP\&.
+.UNINDENT
+.SS Log options
+.INDENT 0.0
+.TP
+.BI \-\-echo \ parms
+Echo \fBparms\fP to log output.
+.sp
+Designed to be used to send messages to a controlling application which
+is receiving the OpenVPN log output.
+.TP
+.B \-\-errors\-to\-stderr
+Output errors to stderr instead of stdout unless log output is
+redirected by one of the \fB\-\-log\fP options.
+.TP
+.BI \-\-log \ file
+Output logging messages to \fBfile\fP, including output to stdout/stderr
+which is generated by called scripts. If \fBfile\fP already exists it will
+be truncated. This option takes effect immediately when it is parsed in
+the command line and will supersede syslog output if \fB\-\-daemon\fP or
+\fB\-\-inetd\fP is also specified. This option is persistent over the entire
+course of an OpenVPN instantiation and will not be reset by
+\fBSIGHUP\fP, \fBSIGUSR1\fP, or \fB\-\-ping\-restart\fP\&.
+.sp
+Note that on Windows, when OpenVPN is started as a service, logging
+occurs by default without the need to specify this option.
+.TP
+.BI \-\-log\-append \ file
+Append logging messages to \fBfile\fP\&.  If \fBfile\fP does not exist, it will
+be created. This option behaves exactly like \fB\-\-log\fP except that it
+appends to rather than truncating the log file.
+.TP
+.B \-\-machine\-readable\-output
+Always write timestamps and message flags to log messages, even when
+they otherwise would not be prefixed. In particular, this applies to log
+messages sent to stdout.
+.TP
+.BI \-\-mute \ n
+Log at most \fBn\fP consecutive messages in the same category. This is
+useful to limit repetitive logging of similar message types.
+.TP
+.B \-\-mute\-replay\-warnings
+Silence the output of replay warnings, which are a common false alarm on
+WiFi networks. This option preserves the security of the replay
+protection code without the verbosity associated with warnings about
+duplicate packets.
+.TP
+.B \-\-suppress\-timestamps
+Avoid writing timestamps to log messages, even when they otherwise would
+be prepended. In particular, this applies to log messages sent to
+stdout.
+.TP
+.BI \-\-syslog \ progname
+Direct log output to system logger, but do not become a daemon. See
+\fB\-\-daemon\fP directive above for description of \fBprogname\fP parameter.
+.TP
+.BI \-\-verb \ n
+Set output verbosity to \fBn\fP (default \fB1\fP). Each level shows all
+info from the previous levels. Level \fB3\fP is recommended if you want
+a good summary of what\(aqs happening without being swamped by output.
+.INDENT 7.0
+.TP
+.B \fB0\fP
+No output except fatal errors.
+.TP
+.B \fB1\fP to \fB4\fP
+Normal usage range.
+.TP
+.B \fB5\fP
+Outputs \fBR\fP and \fBW\fP characters to the console for
+each packet read and write, uppercase is used for TCP/UDP
+packets and lowercase is used for TUN/TAP packets.
+.TP
+.B \fB6\fP to \fB11\fP
+Debug info range (see \fBerrlevel.h\fP in the source code for
+additional information on debug levels).
+.UNINDENT
+.UNINDENT
+.SS Protocol options
+.sp
+Options in this section affect features available in the OpenVPN wire
+protocol.  Many of these options also define the encryption options
+of the data channel in the OpenVPN wire protocol.  These options must be
+configured in a compatible way between both the local and remote side.
+.INDENT 0.0
+.TP
+.BI \-\-allow\-compression \ mode
+As described in the \fB\-\-compress\fP option, compression is a potentially
+dangerous option.  This option allows controlling the behaviour of
+OpenVPN when compression is used and allowed.
+.sp
+Valid syntaxes:
+.INDENT 7.0
+.INDENT 3.5
+.sp
+.nf
+.ft C
+allow\-compression
+allow\-compression mode
+.ft P
+.fi
+.UNINDENT
+.UNINDENT
+.sp
+The \fBmode\fP argument can be one of the following values:
+.INDENT 7.0
+.TP
+.B \fBasym\fP  (default)
+OpenVPN will only \fIdecompress downlink packets\fP but \fInot compress
+uplink packets\fP\&.  This also allows migrating to disable compression
+when changing both server and client configurations to remove
+compression at the same time is not a feasible option.
+.TP
+.B \fBno\fP
+OpenVPN will refuse any non\-stub compression.
+.TP
+.B \fByes\fP
+OpenVPN will send and receive compressed packets.
+.UNINDENT
+.TP
+.BI \-\-auth \ alg
+Authenticate data channel packets and (if enabled) \fBtls\-auth\fP control
+channel packets with HMAC using message digest algorithm \fBalg\fP\&. (The
+default is \fBSHA1\fP ). HMAC is a commonly used message authentication
+algorithm (MAC) that uses a data string, a secure hash algorithm and a
+key to produce a digital signature.
+.sp
+The OpenVPN data channel protocol uses encrypt\-then\-mac (i.e. first
+encrypt a packet then HMAC the resulting ciphertext), which prevents
+padding oracle attacks.
+.sp
+If an AEAD cipher mode (e.g. GCM) is chosen then the specified \fB\-\-auth\fP
+algorithm is ignored for the data channel and the authentication method
+of the AEAD cipher is used instead. Note that \fBalg\fP still specifies
+the digest used for \fBtls\-auth\fP\&.
+.sp
+In static\-key encryption mode, the HMAC key is included in the key file
+generated by \fB\-\-genkey\fP\&. In TLS mode, the HMAC key is dynamically
+generated and shared between peers via the TLS control channel. If
+OpenVPN receives a packet with a bad HMAC it will drop the packet. HMAC
+usually adds 16 or 20 bytes per packet. Set \fBalg=none\fP to disable
+authentication.
+.sp
+For more information on HMAC see
+\fI\%http://www.cs.ucsd.edu/users/mihir/papers/hmac.html\fP
+.TP
+.BI \-\-cipher \ alg
+This option is deprecated for server\-client mode. \fB\-\-data\-ciphers\fP
+or possibly \fI\-\-data\-ciphers\-fallback\(ga\fP should be used instead.
+.sp
+Encrypt data channel packets with cipher algorithm \fBalg\fP\&.
+.sp
+The default is \fBBF\-CBC\fP, an abbreviation for Blowfish in Cipher
+Block Chaining mode. When cipher negotiation (NCP) is allowed,
+OpenVPN 2.4 and newer on both client and server side will automatically
+upgrade to \fBAES\-256\-GCM\fP\&.  See \fB\-\-data\-ciphers\fP and
+\fB\-\-ncp\-disable\fP for more details on NCP.
+.sp
+Using \fBBF\-CBC\fP is no longer recommended, because of its 64\-bit
+block size. This small block size allows attacks based on collisions, as
+demonstrated by SWEET32. See
+\fI\%https://community.openvpn.net/openvpn/wiki/SWEET32\fP
+for details. Due to this, support for \fBBF\-CBC\fP, \fBDES\fP,
+\fBCAST5\fP, \fBIDEA\fP and \fBRC2\fP ciphers will be removed in
+OpenVPN 2.6.
+.sp
+To see other ciphers that are available with OpenVPN, use the
+\fB\-\-show\-ciphers\fP option.
+.sp
+Set \fBalg\fP to \fBnone\fP to disable encryption.
+.TP
+.BI \-\-compress \ algorithm
+\fBDEPRECATED\fP Enable a compression algorithm.  Compression is generally
+not recommended.  VPN tunnels which use compression are susceptible to
+the VORALCE attack vector.
+.sp
+The \fBalgorithm\fP parameter may be \fBlzo\fP, \fBlz4\fP,
+\fBlz4\-v2\fP, \fBstub\fP, \fBstub\-v2\fP or empty.
+LZO and LZ4 are different compression algorithms, with LZ4 generally
+offering the best performance with least CPU usage.
+.sp
+The \fBlz4\-v2\fP and \fBstub\-v2\fP variants implement a better
+framing that does not add overhead when packets cannot be compressed. All
+other variants always add one extra framing byte compared to no
+compression framing.
+.sp
+If the \fBalgorithm\fP parameter is \fBstub\fP, \fBstub\-v2\fP or empty,
+compression will be turned off, but the packet framing for compression
+will still be enabled, allowing a different setting to be pushed later.
+Additionally, \fBstub\fP and \fBstub\-v2\fP wil disable announcing
+\fBlzo\fP and \fBlz4\fP compression support via \fIIV_\fP variables to the
+server.
+.sp
+Note: the \fBstub\fP (or empty) option is NOT compatible with the older
+option \fB\-\-comp\-lzo no\fP\&.
+.sp
+\fB*Security Considerations*\fP
+.sp
+Compression and encryption is a tricky combination. If an attacker knows
+or is able to control (parts of) the plain\-text of packets that contain
+secrets, the attacker might be able to extract the secret if compression
+is enabled. See e.g. the \fICRIME\fP and \fIBREACH\fP attacks on TLS and
+\fIVORACLE\fP on VPNs which also leverage to break encryption. If you are not
+entirely sure that the above does not apply to your traffic, you are
+advised to \fInot\fP enable compression.
+.TP
+.BI \-\-comp\-lzo \ mode
+\fBDEPRECATED\fP Enable LZO compression algorithm.  Compression is
+generally not recommended.  VPN tunnels which uses compression are
+suspectible to the VORALCE attack vector.
+.sp
+Use LZO compression \-\- may add up to 1 byte per packet for incompressible
+data. \fBmode\fP may be \fByes\fP, \fBno\fP, or \fBadaptive\fP
+(default).
+.sp
+In a server mode setup, it is possible to selectively turn compression
+on or off for individual clients.
+.sp
+First, make sure the client\-side config file enables selective
+compression by having at least one \fB\-\-comp\-lzo\fP directive, such as
+\fB\-\-comp\-lzo no\fP\&. This will turn off compression by default, but allow
+a future directive push from the server to dynamically change the
+\fBon\fP/\fBoff\fP/\fBadaptive\fP setting.
+.sp
+Next in a \fB\-\-client\-config\-dir\fP file, specify the compression setting
+for the client, for example:
+.INDENT 7.0
+.INDENT 3.5
+.sp
+.nf
+.ft C
+comp\-lzo yes
+push "comp\-lzo yes"
+.ft P
+.fi
+.UNINDENT
+.UNINDENT
+.sp
+The first line sets the \fBcomp\-lzo\fP setting for the server side of the
+link, the second sets the client side.
+.TP
+.B \-\-comp\-noadapt
+\fBDEPRECATED\fP When used in conjunction with \fB\-\-comp\-lzo\fP, this option
+will disable OpenVPN\(aqs adaptive compression algorithm. Normally, adaptive
+compression is enabled with \fB\-\-comp\-lzo\fP\&.
+.sp
+Adaptive compression tries to optimize the case where you have
+compression enabled, but you are sending predominantly incompressible
+(or pre\-compressed) packets over the tunnel, such as an FTP or rsync
+transfer of a large, compressed file. With adaptive compression, OpenVPN
+will periodically sample the compression process to measure its
+efficiency. If the data being sent over the tunnel is already
+compressed, the compression efficiency will be very low, triggering
+openvpn to disable compression for a period of time until the next
+re\-sample test.
+.TP
+.B \-\-key\-direction
+Alternative way of specifying the optional direction parameter for the
+\fB\-\-tls\-auth\fP and \fB\-\-secret\fP options. Useful when using inline files
+(See section on inline files).
+.TP
+.BI \-\-keysize \ n
+\fBDEPRECATED\fP This option will be removed in OpenVPN 2.6.
+.sp
+Size of cipher key in bits (optional). If unspecified, defaults to
+cipher\-specific default. The \fB\-\-show\-ciphers\fP option (see below) shows
+all available OpenSSL ciphers, their default key sizes, and whether the
+key size can be changed. Use care in changing a cipher\(aqs default key
+size. Many ciphers have not been extensively cryptanalyzed with
+non\-standard key lengths, and a larger key may offer no real guarantee
+of greater security, or may even reduce security.
+.TP
+.BI \-\-data\-ciphers \ cipher\-list
+Restrict the allowed ciphers to be negotiated to the ciphers in
+\fBcipher\-list\fP\&. \fBcipher\-list\fP is a colon\-separated list of ciphers,
+and defaults to \fBAES\-256\-GCM:AES\-128\-GCM\fP\&.
+.sp
+For servers, the first cipher from \fBcipher\-list\fP that is also
+supported by the client will be pushed to clients that support cipher
+negotiation.
+.sp
+Cipher negotiation is enabled in client\-server mode only. I.e. if
+\fB\-\-mode\fP is set to \(aqserver\(aq (server\-side, implied by setting
+\fB\-\-server\fP ), or if \fB\-\-pull\fP is specified (client\-side, implied by
+setting \-\-client).
+.sp
+If no common cipher is found during cipher negotiation, the connection
+is terminated. To support old clients/old servers that do not provide any
+cipher negotiation support see \fB\-\-data\-ciphers\-fallback\fP\&.
+.sp
+Additionally, to allow for more smooth transition, if NCP is enabled,
+OpenVPN will inherit the cipher of the peer if that cipher is different
+from the local \fB\-\-cipher\fP setting, but the peer cipher is one of the
+ciphers specified in \fB\-\-data\-ciphers\fP\&. E.g. a non\-NCP client (<=v2.3,
+or with \-\-ncp\-disabled set) connecting to a NCP server (v2.4+) with
+\fB\-\-cipher BF\-CBC\fP and \fB\-\-data\-ciphers AES\-256\-GCM:AES\-256\-CBC\fP set can
+either specify \fB\-\-cipher BF\-CBC\fP or \fB\-\-cipher AES\-256\-CBC\fP and both
+will work.
+.sp
+Note for using NCP with an OpenVPN 2.4 peer: This list must include the
+\fBAES\-256\-GCM\fP and \fBAES\-128\-GCM\fP ciphers.
+.sp
+This list is restricted to be 127 chars long after conversion to OpenVPN
+ciphers.
+.sp
+This option was called \fB\-\-ncp\-ciphers\fP in OpenVPN 2.4 but has been renamed
+to \fB\-\-data\-ciphers\fP in OpenVPN 2.5 to more accurately reflect its meaning.
+.TP
+.BI \-\-data\-ciphers\-fallback \ alg
+Configure a cipher that is used to fall back to if we could not determine
+which cipher the peer is willing to use.
+.sp
+This option should only be needed to
+connect to peers that are running OpenVPN 2.3 and older version, and
+have been configured with \fI\-\-enable\-small\fP
+(typically used on routers or other embedded devices).
+.TP
+.B \-\-ncp\-disable
+\fBDEPRECATED\fP Disable "Negotiable Crypto Parameters". This completely
+disables cipher negotiation.
+.TP
+.BI \-\-secret \ args
+Enable Static Key encryption mode (non\-TLS). Use pre\-shared secret
+\fBfile\fP which was generated with \fB\-\-genkey\fP\&.
+.sp
+Valid syntaxes:
+.INDENT 7.0
+.INDENT 3.5
+.sp
+.nf
+.ft C
+secret file
+secret file direction
+.ft P
+.fi
+.UNINDENT
+.UNINDENT
+.sp
+The optional \fBdirection\fP parameter enables the use of 4 distinct keys
+(HMAC\-send, cipher\-encrypt, HMAC\-receive, cipher\-decrypt), so that each
+data flow direction has a different set of HMAC and cipher keys. This
+has a number of desirable security properties including eliminating
+certain kinds of DoS and message replay attacks.
+.sp
+When the \fBdirection\fP parameter is omitted, 2 keys are used
+bidirectionally, one for HMAC and the other for encryption/decryption.
+.sp
+The \fBdirection\fP parameter should always be complementary on either
+side of the connection, i.e. one side should use \fB0\fP and the other
+should use \fB1\fP, or both sides should omit it altogether.
+.sp
+The \fBdirection\fP parameter requires that \fBfile\fP contains a 2048 bit
+key. While pre\-1.5 versions of OpenVPN generate 1024 bit key files, any
+version of OpenVPN which supports the \fBdirection\fP parameter, will also
+support 2048 bit key file generation using the \fB\-\-genkey\fP option.
+.sp
+Static key encryption mode has certain advantages, the primary being
+ease of configuration.
+.sp
+There are no certificates or certificate authorities or complicated
+negotiation handshakes and protocols. The only requirement is that you
+have a pre\-existing secure channel with your peer (such as \fBssh\fP) to
+initially copy the key. This requirement, along with the fact that your
+key never changes unless you manually generate a new one, makes it
+somewhat less secure than TLS mode (see below). If an attacker manages
+to steal your key, everything that was ever encrypted with it is
+compromised. Contrast that to the perfect forward secrecy features of
+TLS mode (using Diffie Hellman key exchange), where even if an attacker
+was able to steal your private key, he would gain no information to help
+him decrypt past sessions.
+.sp
+Another advantageous aspect of Static Key encryption mode is that it is
+a handshake\-free protocol without any distinguishing signature or
+feature (such as a header or protocol handshake sequence) that would
+mark the ciphertext packets as being generated by OpenVPN. Anyone
+eavesdropping on the wire would see nothing but random\-looking data.
+.TP
+.BI \-\-tran\-window \ n
+Transition window \-\- our old key can live this many seconds after a new
+a key renegotiation begins (default \fB3600\fP seconds). This feature
+allows for a graceful transition from old to new key, and removes the key
+renegotiation sequence from the critical path of tunnel data forwarding.
+.UNINDENT
+.SS Client Options
+.sp
+The client options are used when connecting to an OpenVPN server configured
+to use \fB\-\-server\fP, \fB\-\-server\-bridge\fP, or \fB\-\-mode server\fP in its
+configuration.
+.INDENT 0.0
+.TP
+.B \-\-allow\-pull\-fqdn
+Allow client to pull DNS names from server (rather than being limited to
+IP address) for \fB\-\-ifconfig\fP, \fB\-\-route\fP, and \fB\-\-route\-gateway\fP\&.
+.TP
+.B \-\-allow\-recursive\-routing
+When this option is set, OpenVPN will not drop incoming tun packets with
+same destination as host.
+.TP
+.BI \-\-auth\-token \ token
+This is not an option to be used directly in any configuration files,
+but rather push this option from a \fB\-\-client\-connect\fP script or a
+\fB\-\-plugin\fP which hooks into the \fBOPENVPN_PLUGIN_CLIENT_CONNECT\fP
+or \fBOPENVPN_PLUGIN_CLIENT_CONNECT_V2\fP calls. This option provides a
+possibility to replace the clients password with an authentication token
+during the lifetime of the OpenVPN client.
+.sp
+Whenever the connection is renegotiated and the
+\fB\-\-auth\-user\-pass\-verify\fP script or \fB\-\-plugin\fP making use of the
+\fBOPENVPN_PLUGIN_AUTH_USER_PASS_VERIFY\fP hook is triggered, it will
+pass over this token as the password instead of the password the user
+provided. The authentication token can only be reset by a full reconnect
+where the server can push new options to the client. The password the
+user entered is never preserved once an authentication token has been
+set. If the OpenVPN server side rejects the authentication token then
+the client will receive an \fBAUTH_FAILED\fP and disconnect.
+.sp
+The purpose of this is to enable two factor authentication methods, such
+as HOTP or TOTP, to be used without needing to retrieve a new OTP code
+each time the connection is renegotiated. Another use case is to cache
+authentication data on the client without needing to have the users
+password cached in memory during the life time of the session.
+.sp
+To make use of this feature, the \fB\-\-client\-connect\fP script or
+\fB\-\-plugin\fP needs to put
+.INDENT 7.0
+.INDENT 3.5
+.sp
+.nf
+.ft C
+push "auth\-token UNIQUE_TOKEN_VALUE"
+.ft P
+.fi
+.UNINDENT
+.UNINDENT
+.sp
+into the file/buffer for dynamic configuration data. This will then make
+the OpenVPN server to push this value to the client, which replaces the
+local password with the \fBUNIQUE_TOKEN_VALUE\fP\&.
+.sp
+Newer clients (2.4.7+) will fall back to the original password method
+after a failed auth. Older clients will keep using the token value and
+react according to \fB\-\-auth\-retry\fP
+.TP
+.B \-\-auth\-user\-pass
+Authenticate with server using username/password.
+.sp
+Valid syntaxes:
+.INDENT 7.0
+.INDENT 3.5
+.sp
+.nf
+.ft C
+auth\-user\-pass
+auth\-user\-pass up
+.ft P
+.fi
+.UNINDENT
+.UNINDENT
+.sp
+If \fBup\fP is present, it must be a file containing username/password on 2
+lines. If the password line is missing, OpenVPN will prompt for one.
+.sp
+If \fBup\fP is omitted, username/password will be prompted from the
+console.
+.sp
+The server configuration must specify an \fB\-\-auth\-user\-pass\-verify\fP
+script to verify the username/password provided by the client.
+.TP
+.BI \-\-auth\-retry \ type
+Controls how OpenVPN responds to username/password verification errors
+such as the client\-side response to an \fBAUTH_FAILED\fP message from
+the server or verification failure of the private key password.
+.sp
+Normally used to prevent auth errors from being fatal on the client
+side, and to permit username/password requeries in case of error.
+.sp
+An \fBAUTH_FAILED\fP message is generated by the server if the client
+fails \fB\-\-auth\-user\-pass\fP authentication, or if the server\-side
+\fB\-\-client\-connect\fP script returns an error status when the client
+tries to connect.
+.sp
+\fBtype\fP can be one of:
+.INDENT 7.0
+.TP
+.B \fBnone\fP
+Client will exit with a fatal error (this is the default).
+.TP
+.B \fBnointeract\fP
+Client will retry the connection without requerying
+for an \fB\-\-auth\-user\-pass\fP username/password. Use this option for
+unattended clients.
+.TP
+.B \fBinteract\fP
+Client will requery for an \fB\-\-auth\-user\-pass\fP
+username/password and/or private key password before attempting a
+reconnection.
+.UNINDENT
+.sp
+Note that while this option cannot be pushed, it can be controlled from
+the management interface.
+.TP
+.B \-\-client
+A helper directive designed to simplify the configuration of OpenVPN\(aqs
+client mode. This directive is equivalent to:
+.INDENT 7.0
+.INDENT 3.5
+.sp
+.nf
+.ft C
+pull
+tls\-client
+.ft P
+.fi
+.UNINDENT
+.UNINDENT
+.TP
+.BI \-\-client\-nat \ args
+This pushable client option sets up a stateless one\-to\-one NAT rule on
+packet addresses (not ports), and is useful in cases where routes or
+ifconfig settings pushed to the client would create an IP numbering
+conflict.
+.sp
+Examples:
+.INDENT 7.0
+.INDENT 3.5
+.sp
+.nf
+.ft C
+client\-nat snat 192.168.0.0/255.255.0.0
+client\-nat dnat 10.64.0.0/255.255.0.0
+.ft P
+.fi
+.UNINDENT
+.UNINDENT
+.sp
+\fBnetwork/netmask\fP (for example \fB192.168.0.0/255.255.0.0\fP) defines
+the local view of a resource from the client perspective, while
+\fBalias/netmask\fP (for example \fB10.64.0.0/255.255.0.0\fP) defines the
+remote view from the server perspective.
+.sp
+Use \fBsnat\fP (source NAT) for resources owned by the client and
+\fBdnat\fP (destination NAT) for remote resources.
+.sp
+Set \fB\-\-verb 6\fP for debugging info showing the transformation of
+src/dest addresses in packets.
+.TP
+.BI \-\-connect\-retry \ n
+Wait \fBn\fP seconds between connection attempts (default \fB5\fP).
+Repeated reconnection attempts are slowed down after 5 retries per
+remote by doubling the wait time after each unsuccessful attempt. An
+optional argument \fBmax\fP specifies the maximum value of wait time in
+seconds at which it gets capped (default \fB300\fP).
+.TP
+.BI \-\-connect\-retry\-max \ n
+\fBn\fP specifies the number of times each \fB\-\-remote\fP or
+\fB<connection>\fP entry is tried. Specifying \fBn\fP as \fB1\fP would try
+each entry exactly once. A successful connection resets the counter.
+(default \fIunlimited\fP).
+.TP
+.BI \-\-connect\-timeout \ n
+See \fB\-\-server\-poll\-timeout\fP\&.
+.TP
+.BI \-\-explicit\-exit\-notify \ n
+In UDP client mode or point\-to\-point mode, send server/peer an exit
+notification if tunnel is restarted or OpenVPN process is exited. In
+client mode, on exit/restart, this option will tell the server to
+immediately close its client instance object rather than waiting for a
+timeout.
+.sp
+The \fBn\fP parameter (default \fB1\fP if not present) controls the
+maximum number of attempts that the client will try to resend the exit
+notification message.
+.sp
+In UDP server mode, send \fBRESTART\fP control channel command to
+connected clients. The \fBn\fP parameter (default \fB1\fP if not present)
+controls client behavior. With \fBn\fP = \fB1\fP client will attempt to
+reconnect to the same server, with \fBn\fP = \fB2\fP client will advance
+to the next server.
+.sp
+OpenVPN will not send any exit notifications unless this option is
+enabled.
+.TP
+.BI \-\-inactive \ args
+Causes OpenVPN to exit after \fBn\fP seconds of inactivity on the TUN/TAP
+device. The time length of inactivity is measured since the last
+incoming or outgoing tunnel packet. The default value is 0 seconds,
+which disables this feature.
+.sp
+Valid syntaxes:
+.INDENT 7.0
+.INDENT 3.5
+.sp
+.nf
+.ft C
+inactive n
+inactive n bytes
+.ft P
+.fi
+.UNINDENT
+.UNINDENT
+.sp
+If the optional \fBbytes\fP parameter is included, exit if less than
+\fBbytes\fP of combined in/out traffic are produced on the tun/tap device
+in \fBn\fP seconds.
+.sp
+In any case, OpenVPN\(aqs internal ping packets (which are just keepalives)
+and TLS control packets are not considered "activity", nor are they
+counted as traffic, as they are used internally by OpenVPN and are not
+an indication of actual user activity.
+.TP
+.BI \-\-proto\-force \ p
+When iterating through connection profiles, only consider profiles using
+protocol \fBp\fP (\fBtcp\fP | \fBudp\fP).
+.TP
+.B \-\-pull
+This option must be used on a client which is connecting to a
+multi\-client server. It indicates to OpenVPN that it should accept
+options pushed by the server, provided they are part of the legal set of
+pushable options (note that the \fB\-\-pull\fP option is implied by
+\fB\-\-client\fP ).
+.sp
+In particular, \fB\-\-pull\fP allows the server to push routes to the
+client, so you should not use \fB\-\-pull\fP or \fB\-\-client\fP in situations
+where you don\(aqt trust the server to have control over the client\(aqs
+routing table.
+.TP
+.BI \-\-pull\-filter \ args
+Filter options on the client pushed by the server to the client.
+.sp
+Valid syntaxes:
+.INDENT 7.0
+.INDENT 3.5
+.sp
+.nf
+.ft C
+pull\-filter accept text
+pull\-filter ignore text
+pull\-filter reject text
+.ft P
+.fi
+.UNINDENT
+.UNINDENT
+.sp
+Filter options received from the server if the option starts with
+\fBtext\fP\&.  The action flag \fBaccept\fP allows the option,
+\fBignore\fP removes it and \fBreject\fP flags an error and triggers
+a \fBSIGUSR1\fP restart. The filters may be specified multiple times,
+and each filter is applied in the order it is specified. The filtering of
+each option stops as soon as a match is found. Unmatched options are accepted
+by default.
+.sp
+Prefix comparison is used to match \fBtext\fP against the received option so
+that
+.INDENT 7.0
+.INDENT 3.5
+.sp
+.nf
+.ft C
+pull\-filter ignore "route"
+.ft P
+.fi
+.UNINDENT
+.UNINDENT
+.sp
+would remove all pushed options starting with \fBroute\fP which would
+include, for example, \fBroute\-gateway\fP\&. Enclose \fItext\fP in quotes to
+embed spaces.
+.INDENT 7.0
+.INDENT 3.5
+.sp
+.nf
+.ft C
+pull\-filter accept "route 192.168.1."
+pull\-filter ignore "route "
+.ft P
+.fi
+.UNINDENT
+.UNINDENT
+.sp
+would remove all routes that do not start with \fB192.168.1\fP\&.
+.sp
+\fINote\fP that \fBreject\fP may result in a repeated cycle of failure and
+reconnect, unless multiple remotes are specified and connection to the
+next remote succeeds. To silently ignore an option pushed by the server,
+use \fBignore\fP\&.
+.TP
+.BI \-\-remote \ args
+Remote host name or IP address.  It supports two additional optional
+arguments: \fBport\fP and \fBproto\fP\&.  On the client, multiple \fB\-\-remote\fP
+options may be specified for redundancy, each referring to a different
+OpenVPN server. Specifying multiple \fB\-\-remote\fP options for this
+purpose is a special case of the more general connection\-profile
+feature. See the \fB<connection>\fP documentation below.
+.sp
+The OpenVPN client will try to connect to a server at \fBhost:port\fP in
+the order specified by the list of \fB\-\-remote\fP options.
+.sp
+Examples:
+.INDENT 7.0
+.INDENT 3.5
+.sp
+.nf
+.ft C
+remote server.example.net
+remote server.example.net 1194
+remote server.example.net tcp
+.ft P
+.fi
+.UNINDENT
+.UNINDENT
+.sp
+\fBproto\fP indicates the protocol to use when connecting with the remote,
+and may be \fBtcp\fP or \fBudp\fP\&.
+.sp
+For forcing IPv4 or IPv6 connection suffix tcp or udp with 4/6 like
+udp4/udp6/tcp4/tcp6.
+.sp
+The client will move on to the next host in the list, in the event of
+connection failure. Note that at any given time, the OpenVPN client will
+at most be connected to one server.
+.sp
+Note that since UDP is connectionless, connection failure is defined by
+the \fB\-\-ping\fP and \fB\-\-ping\-restart\fP options.
+.sp
+Note the following corner case: If you use multiple \fB\-\-remote\fP
+options, AND you are dropping root privileges on the client with
+\fB\-\-user\fP and/or \fB\-\-group\fP AND the client is running a non\-Windows
+OS, if the client needs to switch to a different server, and that server
+pushes back different TUN/TAP or route settings, the client may lack the
+necessary privileges to close and reopen the TUN/TAP interface. This
+could cause the client to exit with a fatal error.
+.sp
+If \fB\-\-remote\fP is unspecified, OpenVPN will listen for packets from any
+IP address, but will not act on those packets unless they pass all
+authentication tests. This requirement for authentication is binding on
+all potential peers, even those from known and supposedly trusted IP
+addresses (it is very easy to forge a source IP address on a UDP
+packet).
+.sp
+When used in TCP mode, \fB\-\-remote\fP will act as a filter, rejecting
+connections from any host which does not match \fBhost\fP\&.
+.sp
+If \fBhost\fP is a DNS name which resolves to multiple IP addresses,
+OpenVPN will try them in the order that the system getaddrinfo()
+presents them, so priorization and DNS randomization is done by the
+system library. Unless an IP version is forced by the protocol
+specification (4/6 suffix), OpenVPN will try both IPv4 and IPv6
+addresses, in the order getaddrinfo() returns them.
+.TP
+.B \-\-remote\-random
+When multiple \fB\-\-remote\fP address/ports are specified, or if connection
+profiles are being used, initially randomize the order of the list as a
+kind of basic load\-balancing measure.
+.TP
+.B \-\-remote\-random\-hostname
+Prepend a random string (6 bytes, 12 hex characters) to hostname to
+prevent DNS caching. For example, "foo.bar.gov" would be modified to
+"<random\-chars>.foo.bar.gov".
+.TP
+.BI \-\-resolv\-retry \ n
+If hostname resolve fails for \fB\-\-remote\fP, retry resolve for \fBn\fP
+seconds before failing.
+.sp
+Set \fBn\fP to "infinite" to retry indefinitely.
+.sp
+By default, \fB\-\-resolv\-retry infinite\fP is enabled. You can disable by
+setting n=0.
+.TP
+.B \-\-single\-session
+After initially connecting to a remote peer, disallow any new
+connections. Using this option means that a remote peer cannot connect,
+disconnect, and then reconnect.
+.sp
+If the daemon is reset by a signal or \fB\-\-ping\-restart\fP, it will allow
+one new connection.
+.sp
+\fB\-\-single\-session\fP can be used with \fB\-\-ping\-exit\fP or \fB\-\-inactive\fP
+to create a single dynamic session that will exit when finished.
+.TP
+.BI \-\-server\-poll\-timeout \ n
+When connecting to a remote server do not wait for more than \fBn\fP
+seconds for a response before trying the next server. The default value
+is 120s. This timeout includes proxy and TCP connect timeouts.
+.TP
+.BI \-\-static\-challenge \ args
+Enable static challenge/response protocol
+.sp
+Valid syntax:
+.INDENT 7.0
+.INDENT 3.5
+.sp
+.nf
+.ft C
+static\-challenge text echo
+.ft P
+.fi
+.UNINDENT
+.UNINDENT
+.sp
+The \fBtext\fP challenge text is presented to the user which describes what
+information is requested.  The \fBecho\fP flag indicates if the user\(aqs
+input should be echoed on the screen.  Valid \fBecho\fP values are
+\fB0\fP or \fB1\fP\&.
+.sp
+See management\-notes.txt in the OpenVPN distribution for a description of
+the OpenVPN challenge/response protocol.
+.UNINDENT
+.INDENT 0.0
+.TP
+.B \-\-show\-proxy\-settings
+Show sensed HTTP or SOCKS proxy settings. Currently, only Windows
+clients support this option.
+.TP
+.BI \-\-http\-proxy \ args
+Connect to remote host through an HTTP proxy.  This requires at least an
+address \fBserver\fP and \fBport\fP argument.  If HTTP Proxy\-Authenticate
+is required, a file name to an \fBauthfile\fP file containing a username
+and password on 2 lines can be given, or \fBstdin\fP to prompt from
+console. Its content can also be specified in the config file with the
+\fB\-\-http\-proxy\-user\-pass\fP option. (See section on inline files)
+.sp
+The last optional argument is an \fBauth\-method\fP which should be one
+of \fBnone\fP, \fBbasic\fP, or \fBntlm\fP\&.
+.sp
+HTTP Digest authentication is supported as well, but only via the
+\fBauto\fP or \fBauto\-nct\fP flags (below).  This must replace
+the \fBauthfile\fP argument.
+.sp
+The \fBauto\fP flag causes OpenVPN to automatically determine the
+\fBauth\-method\fP and query stdin or the management interface for
+username/password credentials, if required. This flag exists on OpenVPN
+2.1 or higher.
+.sp
+The \fBauto\-nct\fP flag (no clear\-text auth) instructs OpenVPN to
+automatically determine the authentication method, but to reject weak
+authentication protocols such as HTTP Basic Authentication.
+.sp
+Examples:
+.INDENT 7.0
+.INDENT 3.5
+.sp
+.nf
+.ft C
+http\-proxy proxy.example.net 3128
+http\-proxy proxy.example.net 3128 authfile.txt
+http\-proxy proxy.example.net 3128 stdin
+http\-proxy proxy.example.net 3128 auto basic
+http\-proxy proxy.example.net 3128 auto\-nct ntlm
+.ft P
+.fi
+.UNINDENT
+.UNINDENT
+.TP
+.BI \-\-http\-proxy\-option \ args
+Set extended HTTP proxy options. Requires an option \fBtype\fP as argument
+and an optional \fBparameter\fP to the type.  Repeat to set multiple
+options.
+.INDENT 7.0
+.TP
+.B \fBVERSION\fP \fBversion\fP
+Set HTTP version number to \fBversion\fP (default \fB1.0\fP).
+.TP
+.B \fBAGENT\fP \fBuser\-agent\fP
+Set HTTP "User\-Agent" string to \fBuser\-agent\fP\&.
+.TP
+.B \fBCUSTOM\-HEADER\fP \fBname\fP \fBcontent\fP
+Adds the custom Header with \fBname\fP as name and \fBcontent\fP as
+the content of the custom HTTP header.
+.UNINDENT
+.sp
+Examples:
+.INDENT 7.0
+.INDENT 3.5
+.sp
+.nf
+.ft C
+http\-proxy\-option VERSION 1.1
+http\-proxy\-option AGENT OpenVPN/2.4
+http\-proxy\-option X\-Proxy\-Flag some\-flags
+.ft P
+.fi
+.UNINDENT
+.UNINDENT
+.TP
+.BI \-\-socks\-proxy \ args
+Connect to remote host through a Socks5 proxy.  A required \fBserver\fP
+argument is needed.  Optionally a \fBport\fP (default \fB1080\fP) and
+\fBauthfile\fP can be given.  The \fBauthfile\fP is a file containing a
+username and password on 2 lines, or \fBstdin\fP can be used to
+prompt from console.
+.UNINDENT
+.SS Server Options
+.sp
+Starting with OpenVPN 2.0, a multi\-client TCP/UDP server mode is
+supported, and can be enabled with the \fB\-\-mode server\fP option. In
+server mode, OpenVPN will listen on a single port for incoming client
+connections. All client connections will be routed through a single tun
+or tap interface. This mode is designed for scalability and should be
+able to support hundreds or even thousands of clients on sufficiently
+fast hardware. SSL/TLS authentication must be used in this mode.
+.INDENT 0.0
+.TP
+.BI \-\-auth\-gen\-token \ args
+Returns an authentication token to successfully authenticated clients.
+.sp
+Valid syntax:
+.INDENT 7.0
+.INDENT 3.5
+.sp
+.nf
+.ft C
+auth\-gen\-token [lifetime] [external\-auth]
+.ft P
+.fi
+.UNINDENT
+.UNINDENT
+.sp
+After successful user/password authentication, the OpenVPN server will
+with this option generate a temporary authentication token and push that
+to the client. On the following renegotiations, the OpenVPN client will pass
+this token instead of the users password. On the server side the server
+will do the token authentication internally and it will NOT do any
+additional authentications against configured external user/password
+authentication mechanisms.
+.sp
+The tokens implemented by this mechanism include an initial timestamp and
+a renew timestamp and are secured by HMAC.
+.sp
+The \fBlifetime\fP argument defines how long the generated token is valid.
+The lifetime is defined in seconds. If lifetime is not set or it is set
+to \fB0\fP, the token will never expire.
+.sp
+The token will expire either after the configured \fBlifetime\fP of the
+token is reached or after not being renewed for more than 2 *
+\fBreneg\-sec\fP seconds. Clients will be sent renewed tokens on every TLS
+renogiation to keep the client\(aqs token updated. This is done to
+invalidate a token if a client is disconnected for a sufficently long
+time, while at the same time permitting much longer token lifetimes for
+active clients.
+.sp
+This feature is useful for environments which are configured to use One
+Time Passwords (OTP) as part of the user/password authentications and
+that authentication mechanism does not implement any auth\-token support.
+.sp
+When the \fBexternal\-auth\fP keyword is present the normal
+authentication method will always be called even if auth\-token succeeds.
+Normally other authentications method are skipped if auth\-token
+verification suceeds or fails.
+.sp
+This option postpones this decision to the external authentication
+methods and checks the validity of the account and do other checks.
+.sp
+In this mode the environment will have a \fBsession_id\fP variable that
+holds the session id from auth\-gen\-token. Also an environment variable
+\fBsession_state\fP is present. This variable indicates whether the
+auth\-token has succeeded or not. It can have the following values:
+.INDENT 7.0
+.TP
+.B \fBInitial\fP
+No token from client.
+.TP
+.B \fBAuthenticated\fP
+Token is valid and not expired.
+.TP
+.B \fBExpired\fP
+Token is valid but has expired.
+.TP
+.B \fBInvalid\fP
+Token is invalid (failed HMAC or wrong length)
+.TP
+.B \fBAuthenticatedEmptyUser\fP / \fBExpiredEmptyUser\fP
+The token is not valid with the username sent from the client but
+would be valid (or expired) if we assume an empty username was
+used instead.  These two cases are a workaround for behaviour in
+OpenVPN 3.  If this workaround is not needed these two cases should
+be handled in the same way as \fBInvalid\fP\&.
+.UNINDENT
+.sp
+\fBWarning:\fP Use this feature only if you want your authentication
+method called on every verification. Since the external authentication
+is called it needs to also indicate a success or failure of the
+authentication. It is strongly recommended to return an authentication
+failure in the case of the Invalid/Expired auth\-token with the
+external\-auth option unless the client could authenticate in another
+acceptable way (e.g. client certificate), otherwise returning success
+will lead to authentication bypass (as does returning success on a wrong
+password from a script).
+.TP
+.BI \-\-auth\-gen\-token\-secret \ file
+Specifies a file that holds a secret for the HMAC used in
+\fB\-\-auth\-gen\-token\fP If \fBfile\fP is not present OpenVPN will generate a
+random secret on startup. This file should be used if auth\-token should
+validate after restarting a server or if client should be able to roam
+between multiple OpenVPN servers with their auth\-token.
+.TP
+.B \-\-auth\-user\-pass\-optional
+Allow connections by clients that do not specify a username/password.
+Normally, when \fB\-\-auth\-user\-pass\-verify\fP or
+\fB\-\-management\-client\-auth\fP are specified (or an authentication plugin
+module), the OpenVPN server daemon will require connecting clients to
+specify a username and password. This option makes the submission of a
+username/password by clients optional, passing the responsibility to the
+user\-defined authentication module/script to accept or deny the client
+based on other factors (such as the setting of X509 certificate fields).
+When this option is used, and a connecting client does not submit a
+username/password, the user\-defined authentication module/script will
+see the username and password as being set to empty strings (""). The
+authentication module/script MUST have logic to detect this condition
+and respond accordingly.
+.TP
+.B \-\-ccd\-exclusive
+Require, as a condition of authentication, that a connecting client has
+a \fB\-\-client\-config\-dir\fP file.
+.TP
+.BI \-\-client\-config\-dir \ dir
+Specify a directory \fBdir\fP for custom client config files. After a
+connecting client has been authenticated, OpenVPN will look in this
+directory for a file having the same name as the client\(aqs X509 common
+name. If a matching file exists, it will be opened and parsed for
+client\-specific configuration options. If no matching file is found,
+OpenVPN will instead try to open and parse a default file called
+"DEFAULT", which may be provided but is not required. Note that the
+configuration files must be readable by the OpenVPN process after it has
+dropped it\(aqs root privileges.
+.sp
+This file can specify a fixed IP address for a given client using
+\fB\-\-ifconfig\-push\fP, as well as fixed subnets owned by the client using
+\fB\-\-iroute\fP\&.
+.sp
+One of the useful properties of this option is that it allows client
+configuration files to be conveniently created, edited, or removed while
+the server is live, without needing to restart the server.
+.sp
+The following options are legal in a client\-specific context: \fB\-\-push\fP,
+\fB\-\-push\-reset\fP, \fB\-\-push\-remove\fP, \fB\-\-iroute\fP, \fB\-\-ifconfig\-push\fP,
+\fB\-\-vlan\-pvid\fP and \fB\-\-config\fP\&.
+.TP
+.B \-\-client\-to\-client
+Because the OpenVPN server mode handles multiple clients through a
+single tun or tap interface, it is effectively a router. The
+\fB\-\-client\-to\-client\fP flag tells OpenVPN to internally route
+client\-to\-client traffic rather than pushing all client\-originating
+traffic to the TUN/TAP interface.
+.sp
+When this option is used, each client will "see" the other clients which
+are currently connected. Otherwise, each client will only see the
+server. Don\(aqt use this option if you want to firewall tunnel traffic
+using custom, per\-client rules.
+.TP
+.B \-\-disable
+Disable a particular client (based on the common name) from connecting.
+Don\(aqt use this option to disable a client due to key or password
+compromise. Use a CRL (certificate revocation list) instead (see the
+\fB\-\-crl\-verify\fP option).
+.sp
+This option must be associated with a specific client instance, which
+means that it must be specified either in a client instance config file
+using \fB\-\-client\-config\-dir\fP or dynamically generated using a
+\fB\-\-client\-connect\fP script.
+.TP
+.BI \-\-connect\-freq \ args
+Allow a maximum of \fBn\fP new connections per \fBsec\fP seconds from
+clients.
+.sp
+Valid syntax:
+.INDENT 7.0
+.INDENT 3.5
+.sp
+.nf
+.ft C
+connect\-freq n sec
+.ft P
+.fi
+.UNINDENT
+.UNINDENT
+.sp
+This is designed to contain DoS attacks which flood the server
+with connection requests using certificates which will ultimately fail
+to authenticate.
+.sp
+This is an imperfect solution however, because in a real DoS scenario,
+legitimate connections might also be refused.
+.sp
+For the best protection against DoS attacks in server mode, use
+\fB\-\-proto udp\fP and either \fB\-\-tls\-auth\fP or \fB\-\-tls\-crypt\fP\&.
+.TP
+.B \-\-duplicate\-cn
+Allow multiple clients with the same common name to concurrently
+connect. In the absence of this option, OpenVPN will disconnect a client
+instance upon connection of a new client having the same common name.
+.TP
+.BI \-\-ifconfig\-pool \ args
+Set aside a pool of subnets to be dynamically allocated to connecting
+clients, similar to a DHCP server.
+.sp
+Valid syntax:
+.INDENT 7.0
+.INDENT 3.5
+.sp
+.nf
+.ft C
+ifconfig\-pool start\-IP end\-IP [netmask]
+.ft P
+.fi
+.UNINDENT
+.UNINDENT
+.sp
+For tun\-style tunnels, each client
+will be given a /30 subnet (for interoperability with Windows clients).
+For tap\-style tunnels, individual addresses will be allocated, and the
+optional \fBnetmask\fP parameter will also be pushed to clients.
+.TP
+.BI \-\-ifconfig\-ipv6\-pool \ args
+Specify an IPv6 address pool for dynamic assignment to clients.
+.sp
+Valid args:
+.INDENT 7.0
+.INDENT 3.5
+.sp
+.nf
+.ft C
+ifconfig\-ipv6\-pool ipv6addr/bits
+.ft P
+.fi
+.UNINDENT
+.UNINDENT
+.sp
+The pool starts at \fBipv6addr\fP and matches the offset determined from
+the start of the IPv4 pool.
+.TP
+.BI \-\-ifconfig\-pool\-persist \ args
+Persist/unpersist ifconfig\-pool data to \fBfile\fP, at \fBseconds\fP
+intervals (default \fB600\fP), as well as on program startup and shutdown.
+.sp
+Valid syntax:
+.INDENT 7.0
+.INDENT 3.5
+.sp
+.nf
+.ft C
+ifconfig\-pool\-persist file [seconds]
+.ft P
+.fi
+.UNINDENT
+.UNINDENT
+.sp
+The goal of this option is to provide a long\-term association between
+clients (denoted by their common name) and the virtual IP address
+assigned to them from the ifconfig\-pool. Maintaining a long\-term
+association is good for clients because it allows them to effectively
+use the \fB\-\-persist\-tun\fP option.
+.sp
+\fBfile\fP is a comma\-delimited ASCII file, formatted as
+\fB<Common\-Name>,<IP\-address>\fP\&.
+.sp
+If \fBseconds\fP = \fB0\fP, \fBfile\fP will be treated as read\-only. This
+is useful if you would like to treat \fBfile\fP as a configuration file.
+.sp
+Note that the entries in this file are treated by OpenVPN as
+\fIsuggestions\fP only, based on past associations between a common name and
+IP address.  They do not guarantee that the given common name will always
+receive the given IP address. If you want guaranteed assignment, use
+\fB\-\-ifconfig\-push\fP
+.TP
+.BI \-\-ifconfig\-push \ args
+Push virtual IP endpoints for client tunnel, overriding the
+\fB\-\-ifconfig\-pool\fP dynamic allocation.
+.sp
+Valid syntax:
+.INDENT 7.0
+.INDENT 3.5
+.sp
+.nf
+.ft C
+ifconfig\-push local remote\-netmask [alias]
+.ft P
+.fi
+.UNINDENT
+.UNINDENT
+.sp
+The parameters \fBlocal\fP and \fBremote\-netmask\fP are set according to the
+\fB\-\-ifconfig\fP directive which you want to execute on the client machine
+to configure the remote end of the tunnel. Note that the parameters
+\fBlocal\fP and \fBremote\-netmask\fP are from the perspective of the client,
+not the server. They may be DNS names rather than IP addresses, in which
+case they will be resolved on the server at the time of client
+connection.
+.sp
+The optional \fBalias\fP parameter may be used in cases where NAT causes
+the client view of its local endpoint to differ from the server view. In
+this case \fBlocal/remote\-netmask\fP will refer to the server view while
+\fBalias/remote\-netmask\fP will refer to the client view.
+.sp
+This option must be associated with a specific client instance, which
+means that it must be specified either in a client instance config file
+using \fB\-\-client\-config\-dir\fP or dynamically generated using a
+\fB\-\-client\-connect\fP script.
+.sp
+Remember also to include a \fB\-\-route\fP directive in the main OpenVPN
+config file which encloses \fBlocal\fP, so that the kernel will know to
+route it to the server\(aqs TUN/TAP interface.
+.sp
+OpenVPN\(aqs internal client IP address selection algorithm works as
+follows:
+.INDENT 7.0
+.IP 1. 3
+Use \fB\-\-client\-connect script\fP generated file for static IP
+(first choice).
+.IP 2. 3
+Use \fB\-\-client\-config\-dir\fP file for static IP (next choice).
+.IP 3. 3
+Use \fB\-\-ifconfig\-pool\fP allocation for dynamic IP (last
+choice).
+.UNINDENT
+.TP
+.BI \-\-ifconfig\-ipv6\-push \ args
+for \fB\-\-client\-config\-dir\fP per\-client static IPv6 interface
+configuration, see \fB\-\-client\-config\-dir\fP and \fB\-\-ifconfig\-push\fP for
+more details.
+.sp
+Valid syntax:
+.INDENT 7.0
+.INDENT 3.5
+.sp
+.nf
+.ft C
+ifconfig\-ipv6\-push ipv6addr/bits ipv6remote
+.ft P
+.fi
+.UNINDENT
+.UNINDENT
+.TP
+.BI \-\-inetd \ args
+Valid syntaxes:
+.INDENT 7.0
+.INDENT 3.5
+.sp
+.nf
+.ft C
+inetd
+inetd wait
+inetd nowait
+inetd wait progname
+.ft P
+.fi
+.UNINDENT
+.UNINDENT
+.sp
+Use this option when OpenVPN is being run from the inetd or \fBxinetd\fP(8)
+server.
+.sp
+The \fBwait\fP and \fBnowait\fP option must match what is specified
+in the inetd/xinetd config file. The \fBnowait\fP mode can only be used
+with \fB\-\-proto tcp\-server\fP The default is \fBwait\fP\&.  The
+\fBnowait\fP mode can be used to instantiate the OpenVPN daemon as a
+classic TCP server, where client connection requests are serviced on a
+single port number. For additional information on this kind of
+configuration, see the OpenVPN FAQ:
+\fI\%https://community.openvpn.net/openvpn/wiki/325\-openvpn\-as\-a\-\-forking\-tcp\-server\-which\-can\-service\-multiple\-clients\-over\-a\-single\-tcp\-port\fP
+.sp
+This option precludes the use of \fB\-\-daemon\fP, \fB\-\-local\fP or
+\fB\-\-remote\fP\&.  Note that this option causes message and error output to
+be handled in the same way as the \fB\-\-daemon\fP option. The optional
+\fBprogname\fP parameter is also handled exactly as in \fB\-\-daemon\fP\&.
+.sp
+Also note that in \fBwait\fP mode, each OpenVPN tunnel requires a separate
+TCP/UDP port and a separate inetd or xinetd entry. See the OpenVPN 1.x
+HOWTO for an example on using OpenVPN with xinetd:
+\fI\%https://openvpn.net/community\-resources/1xhowto/\fP
+.TP
+.B \-\-multihome
+Configure a multi\-homed UDP server. This option needs to be used when a
+server has more than one IP address (e.g. multiple interfaces, or
+secondary IP addresses), and is not using \fB\-\-local\fP to force binding
+to one specific address only. This option will add some extra lookups to
+the packet path to ensure that the UDP reply packets are always sent
+from the address that the client is talking to. This is not supported on
+all platforms, and it adds more processing, so it\(aqs not enabled by
+default.
+.INDENT 7.0
+.TP
+.B \fINotes:\fP
+.INDENT 7.0
+.IP \(bu 2
+This option is only relevant for UDP servers.
+.IP \(bu 2
+If you do an IPv6+IPv4 dual\-stack bind on a Linux machine with
+multiple IPv4 address, connections to IPv4 addresses will not
+work right on kernels before 3.15, due to missing kernel
+support for the IPv4\-mapped case (some distributions have
+ported this to earlier kernel versions, though).
+.UNINDENT
+.UNINDENT
+.TP
+.BI \-\-iroute \ args
+Generate an internal route to a specific client. The \fBnetmask\fP
+parameter, if omitted, defaults to \fB255.255.255.255\fP\&.
+.sp
+Valid syntax:
+.INDENT 7.0
+.INDENT 3.5
+.sp
+.nf
+.ft C
+iroute network [netmask]
+.ft P
+.fi
+.UNINDENT
+.UNINDENT
+.sp
+This directive can be used to route a fixed subnet from the server to a
+particular client, regardless of where the client is connecting from.
+Remember that you must also add the route to the system routing table as
+well (such as by using the \fB\-\-route\fP directive). The reason why two
+routes are needed is that the \fB\-\-route\fP directive routes the packet
+from the kernel to OpenVPN. Once in OpenVPN, the \fB\-\-iroute\fP directive
+routes to the specific client.
+.sp
+This option must be specified either in a client instance config file
+using \fB\-\-client\-config\-dir\fP or dynamically generated using a
+\fB\-\-client\-connect\fP script.
+.sp
+The \fB\-\-iroute\fP directive also has an important interaction with
+\fB\-\-push "route ..."\fP\&. \fB\-\-iroute\fP essentially defines a subnet which
+is owned by a particular client (we will call this client \fIA\fP). If you
+would like other clients to be able to reach \fIA\fP\(aqs subnet, you can use
+\fB\-\-push "route ..."\fP together with \fB\-\-client\-to\-client\fP to effect
+this. In order for all clients to see \fIA\fP\(aqs subnet, OpenVPN must push
+this route to all clients EXCEPT for \fIA\fP, since the subnet is already
+owned by \fIA\fP\&. OpenVPN accomplishes this by not not pushing a route to
+a client if it matches one of the client\(aqs iroutes.
+.TP
+.BI \-\-iroute\-ipv6 \ args
+for \fB\-\-client\-config\-dir\fP per\-client static IPv6 route configuration,
+see \fB\-\-iroute\fP for more details how to setup and use this, and how
+\fB\-\-iroute\fP and \fB\-\-route\fP interact.
+.sp
+Valid syntax:
+.INDENT 7.0
+.INDENT 3.5
+.sp
+.nf
+.ft C
+iroute\-ipv6 ipv6addr/bits
+.ft P
+.fi
+.UNINDENT
+.UNINDENT
+.TP
+.BI \-\-max\-clients \ n
+Limit server to a maximum of \fBn\fP concurrent clients.
+.TP
+.BI \-\-max\-routes\-per\-client \ n
+Allow a maximum of \fBn\fP internal routes per client (default
+\fB256\fP). This is designed to help contain DoS attacks where an
+authenticated client floods the server with packets appearing to come
+from many unique MAC addresses, forcing the server to deplete virtual
+memory as its internal routing table expands. This directive can be used
+in a \fB\-\-client\-config\-dir\fP file or auto\-generated by a
+\fB\-\-client\-connect\fP script to override the global value for a particular
+client.
+.sp
+Note that this directive affects OpenVPN\(aqs internal routing table, not
+the kernel routing table.
+.TP
+.B \-\-opt\-verify
+Clients that connect with options that are incompatible with those of the
+server will be disconnected.
+.sp
+Options that will be compared for compatibility include \fBdev\-type\fP,
+\fBlink\-mtu\fP, \fBtun\-mtu\fP, \fBproto\fP, \fBifconfig\fP,
+\fBcomp\-lzo\fP, \fBfragment\fP, \fBkeydir\fP, \fBcipher\fP,
+\fBauth\fP, \fBkeysize\fP, \fBsecret\fP, \fBno\-replay\fP,
+\fBtls\-auth\fP, \fBkey\-method\fP, \fBtls\-server\fP
+and \fBtls\-client\fP\&.
+.sp
+This option requires that \fB\-\-disable\-occ\fP NOT be used.
+.TP
+.BI \-\-port\-share \ args
+Share OpenVPN TCP with another service
+.sp
+Valid syntax:
+.INDENT 7.0
+.INDENT 3.5
+.sp
+.nf
+.ft C
+port\-share host port [dir]
+.ft P
+.fi
+.UNINDENT
+.UNINDENT
+.sp
+When run in TCP server mode, share the OpenVPN port with another
+application, such as an HTTPS server. If OpenVPN senses a connection to
+its port which is using a non\-OpenVPN protocol, it will proxy the
+connection to the server at \fBhost\fP:\fBport\fP\&. Currently only designed to
+work with HTTP/HTTPS, though it would be theoretically possible to
+extend to other protocols such as ssh.
+.sp
+\fBdir\fP specifies an optional directory where a temporary file with name
+N containing content C will be dynamically generated for each proxy
+connection, where N is the source IP:port of the client connection and C
+is the source IP:port of the connection to the proxy receiver. This
+directory can be used as a dictionary by the proxy receiver to determine
+the origin of the connection. Each generated file will be automatically
+deleted when the proxied connection is torn down.
+.sp
+Not implemented on Windows.
+.TP
+.BI \-\-push \ option
+Push a config file option back to the client for remote execution. Note
+that \fBoption\fP must be enclosed in double quotes (\fB""\fP). The
+client must specify \fB\-\-pull\fP in its config file. The set of options
+which can be pushed is limited by both feasibility and security. Some
+options such as those which would execute scripts are banned, since they
+would effectively allow a compromised server to execute arbitrary code
+on the client. Other options such as TLS or MTU parameters cannot be
+pushed because the client needs to know them before the connection to the
+server can be initiated.
+.sp
+This is a partial list of options which can currently be pushed:
+\fB\-\-route\fP, \fB\-\-route\-gateway\fP, \fB\-\-route\-delay\fP,
+\fB\-\-redirect\-gateway\fP, \fB\-\-ip\-win32\fP, \fB\-\-dhcp\-option\fP,
+\fB\-\-inactive\fP, \fB\-\-ping\fP, \fB\-\-ping\-exit\fP, \fB\-\-ping\-restart\fP,
+\fB\-\-setenv\fP, \fB\-\-auth\-token\fP, \fB\-\-persist\-key\fP, \fB\-\-persist\-tun\fP,
+\fB\-\-echo\fP, \fB\-\-comp\-lzo\fP, \fB\-\-socket\-flags\fP, \fB\-\-sndbuf\fP,
+\fB\-\-rcvbuf\fP
+.TP
+.B \-\-push\-peer\-info
+Push additional information about the client to server. The following
+data is always pushed to the server:
+.INDENT 7.0
+.TP
+.B \fBIV_VER=<version>\fP
+The client OpenVPN version
+.TP
+.B \fBIV_PLAT=[linux|solaris|openbsd|mac|netbsd|freebsd|win]\fP
+The client OS platform
+.TP
+.B \fBIV_LZO_STUB=1\fP
+If client was built with LZO stub capability
+.TP
+.B \fBIV_LZ4=1\fP
+If the client supports LZ4 compressions.
+.TP
+.B \fBIV_PROTO\fP
+Details about protocol extensions that the peer supports. The
+variable is a bitfield and the bits are defined as follows
+(starting a bit 0 for the first (unused) bit:
+.INDENT 7.0
+.IP \(bu 2
+bit 1: The peer supports peer\-id floating mechanism
+.IP \(bu 2
+bit 2: The client expects a push\-reply and the server may
+send this reply without waiting for a push\-request first.
+.UNINDENT
+.TP
+.B \fBIV_NCP=2\fP
+Negotiable ciphers, client supports \fB\-\-cipher\fP pushed by
+the server, a value of 2 or greater indicates client supports
+\fIAES\-GCM\-128\fP and \fIAES\-GCM\-256\fP\&.
+.TP
+.B \fBIV_CIPHERS=<ncp\-ciphers>\fP
+The client announces the list of supported ciphers configured with the
+\fB\-\-data\-ciphers\fP option to the server.
+.TP
+.B \fBIV_GUI_VER=<gui_id> <version>\fP
+The UI version of a UI if one is running, for example
+\fBde.blinkt.openvpn 0.5.47\fP for the Android app.
+.UNINDENT
+.sp
+When \fB\-\-push\-peer\-info\fP is enabled the additional information consists
+of the following data:
+.INDENT 7.0
+.TP
+.B \fBIV_HWADDR=<mac address>\fP
+The MAC address of clients default gateway
+.TP
+.B \fBIV_SSL=<version string>\fP
+The ssl version used by the client, e.g.
+\fBOpenSSL 1.0.2f 28 Jan 2016\fP\&.
+.TP
+.B \fBIV_PLAT_VER=x.y\fP
+The version of the operating system, e.g. 6.1 for Windows 7.
+.TP
+.B \fBUV_<name>=<value>\fP
+Client environment variables whose names start with
+\fBUV_\fP
+.UNINDENT
+.TP
+.BI \-\-push\-remove \ opt
+Selectively remove all \fB\-\-push\fP options matching "opt" from the option
+list for a client. \fBopt\fP is matched as a substring against the whole
+option string to\-be\-pushed to the client, so \fB\-\-push\-remove route\fP
+would remove all \fB\-\-push route ...\fP and \fB\-\-push route\-ipv6 ...\fP
+statements, while \fB\-\-push\-remove "route\-ipv6 2001:"\fP would only remove
+IPv6 routes for \fB2001:...\fP networks.
+.sp
+\fB\-\-push\-remove\fP can only be used in a client\-specific context, like in
+a \fB\-\-client\-config\-dir\fP file, or \fB\-\-client\-connect\fP script or plugin
+\-\- similar to \fB\-\-push\-reset\fP, just more selective.
+.sp
+\fINOTE\fP: to \fIchange\fP an option, \fB\-\-push\-remove\fP can be used to first
+remove the old value, and then add a new \fB\-\-push\fP option with the new
+value.
+.sp
+\fINOTE 2\fP: due to implementation details, \(aqifconfig\(aq and \(aqifconfig\-ipv6\(aq
+can only be removed with an exact match on the option (
+\fBpush\-remove ifconfig\fP), no substring matching and no matching on
+the IPv4/IPv6 address argument is possible.
+.TP
+.B \-\-push\-reset
+Don\(aqt inherit the global push list for a specific client instance.
+Specify this option in a client\-specific context such as with a
+\fB\-\-client\-config\-dir\fP configuration file. This option will ignore
+\fB\-\-push\fP options at the global config file level.
+.TP
+.BI \-\-server \ args
+A helper directive designed to simplify the configuration of OpenVPN\(aqs
+server mode. This directive will set up an OpenVPN server which will
+allocate addresses to clients out of the given network/netmask. The
+server itself will take the \fB\&.1\fP address of the given network for
+use as the server\-side endpoint of the local TUN/TAP interface. If the
+optional \fBnopool\fP flag is given, no dynamic IP address pool will
+prepared for VPN clients.
+.sp
+Valid syntax:
+.INDENT 7.0
+.INDENT 3.5
+.sp
+.nf
+.ft C
+server network netmask [nopool]
+.ft P
+.fi
+.UNINDENT
+.UNINDENT
+.sp
+For example, \fB\-\-server 10.8.0.0 255.255.255.0\fP expands as follows:
+.INDENT 7.0
+.INDENT 3.5
+.sp
+.nf
+.ft C
+mode server
+tls\-server
+push "topology [topology]"
+
+if dev tun AND (topology == net30 OR topology == p2p):
+  ifconfig 10.8.0.1 10.8.0.2
+  if !nopool:
+    ifconfig\-pool 10.8.0.4 10.8.0.251
+  route 10.8.0.0 255.255.255.0
+  if client\-to\-client:
+    push "route 10.8.0.0 255.255.255.0"
+  else if topology == net30:
+    push "route 10.8.0.1"
+
+if dev tap OR (dev tun AND topology == subnet):
+  ifconfig 10.8.0.1 255.255.255.0
+  if !nopool:
+    ifconfig\-pool 10.8.0.2 10.8.0.253 255.255.255.0
+  push "route\-gateway 10.8.0.1"
+  if route\-gateway unset:
+    route\-gateway 10.8.0.2
+.ft P
+.fi
+.UNINDENT
+.UNINDENT
+.sp
+Don\(aqt use \fB\-\-server\fP if you are ethernet bridging. Use
+\fB\-\-server\-bridge\fP instead.
+.TP
+.BI \-\-server\-bridge \ args
+A helper directive similar to \fB\-\-server\fP which is designed to simplify
+the configuration of OpenVPN\(aqs server mode in ethernet bridging
+configurations.
+.sp
+Valid syntaxes:
+.INDENT 7.0
+.INDENT 3.5
+.sp
+.nf
+.ft C
+server\-bridge gateway netmask pool\-start\-IP pool\-end\-IP
+server\-bridge [nogw]
+.ft P
+.fi
+.UNINDENT
+.UNINDENT
+.sp
+If \fB\-\-server\-bridge\fP is used without any parameters, it will enable a
+DHCP\-proxy mode, where connecting OpenVPN clients will receive an IP
+address for their TAP adapter from the DHCP server running on the
+OpenVPN server\-side LAN. Note that only clients that support the binding
+of a DHCP client with the TAP adapter (such as Windows) can support this
+mode. The optional \fBnogw\fP flag (advanced) indicates that gateway
+information should not be pushed to the client.
+.sp
+To configure ethernet bridging, you must first use your OS\(aqs bridging
+capability to bridge the TAP interface with the ethernet NIC interface.
+For example, on Linux this is done with the \fBbrctl\fP tool, and with
+Windows XP it is done in the Network Connections Panel by selecting the
+ethernet and TAP adapters and right\-clicking on "Bridge Connections".
+.sp
+Next you you must manually set the IP/netmask on the bridge interface.
+The \fBgateway\fP and \fBnetmask\fP parameters to \fB\-\-server\-bridge\fP can be
+set to either the IP/netmask of the bridge interface, or the IP/netmask
+of the default gateway/router on the bridged subnet.
+.sp
+Finally, set aside a IP range in the bridged subnet, denoted by
+\fBpool\-start\-IP\fP and \fBpool\-end\-IP\fP, for OpenVPN to allocate to
+connecting clients.
+.sp
+For example, \fBserver\-bridge 10.8.0.4 255.255.255.0 10.8.0.128
+10.8.0.254\fP expands as follows:
+.INDENT 7.0
+.INDENT 3.5
+.sp
+.nf
+.ft C
+mode server
+tls\-server
+
+ifconfig\-pool 10.8.0.128 10.8.0.254 255.255.255.0
+push "route\-gateway 10.8.0.4"
+.ft P
+.fi
+.UNINDENT
+.UNINDENT
+.sp
+In another example, \fB\-\-server\-bridge\fP (without parameters) expands as
+follows:
+.INDENT 7.0
+.INDENT 3.5
+.sp
+.nf
+.ft C
+mode server
+tls\-server
+
+push "route\-gateway dhcp"
+.ft P
+.fi
+.UNINDENT
+.UNINDENT
+.sp
+Or \fB\-\-server\-bridge nogw\fP expands as follows:
+.INDENT 7.0
+.INDENT 3.5
+.sp
+.nf
+.ft C
+mode server
+tls\-server
+.ft P
+.fi
+.UNINDENT
+.UNINDENT
+.TP
+.BI \-\-stale\-routes\-check \ args
+Remove routes which haven\(aqt had activity for \fBn\fP seconds (i.e. the ageing
+time).  This check is run every \fBt\fP seconds (i.e. check interval).
+.sp
+Valid syntax:
+.INDENT 7.0
+.INDENT 3.5
+.sp
+.nf
+.ft C
+stale\-routes\-check n [t]
+.ft P
+.fi
+.UNINDENT
+.UNINDENT
+.sp
+If \fBt\fP is not present it defaults to \fBn\fP\&.
+.sp
+This option helps to keep the dynamic routing table small. See also
+\fB\-\-max\-routes\-per\-client\fP
+.TP
+.B \-\-username\-as\-common\-name
+For \fB\-\-auth\-user\-pass\-verify\fP authentication, use the authenticated
+username as the common name, rather than the common name from the client
+cert.
+.TP
+.BI \-\-verify\-client\-cert \ mode
+Specify whether the client is required to supply a valid certificate.
+.sp
+Possible \fBmode\fP options are:
+.INDENT 7.0
+.TP
+.B \fBnone\fP
+A client certificate is not required. the client needs to
+authenticate using username/password only. Be aware that using this
+directive is less secure than requiring certificates from all
+clients.
+.sp
+If you use this directive, the entire responsibility of authentication
+will rest on your \fB\-\-auth\-user\-pass\-verify\fP script, so keep in mind
+that bugs in your script could potentially compromise the security of
+your VPN.
+.sp
+\fB\-\-verify\-client\-cert none\fP is functionally equivalent to
+\fB\-\-client\-cert\-not\-required\fP\&.
+.TP
+.B \fBoptional\fP
+A client may present a certificate but it is not required to do so.
+When using this directive, you should also use a
+\fB\-\-auth\-user\-pass\-verify\fP script to ensure that clients are
+authenticated using a certificate, a username and password, or
+possibly even both.
+.sp
+Again, the entire responsibility of authentication will rest on your
+\fB\-\-auth\-user\-pass\-verify\fP script, so keep in mind that bugs in your
+script could potentially compromise the security of your VPN.
+.TP
+.B \fBrequire\fP
+This is the default option. A client is required to present a
+certificate, otherwise VPN access is refused.
+.UNINDENT
+.sp
+If you don\(aqt use this directive (or use \fB\-\-verify\-client\-cert require\fP)
+but you also specify an \fB\-\-auth\-user\-pass\-verify\fP script, then OpenVPN
+will perform double authentication. The client certificate verification
+AND the \fB\-\-auth\-user\-pass\-verify\fP script will need to succeed in order
+for a client to be authenticated and accepted onto the VPN.
+.TP
+.B \-\-vlan\-tagging
+Server\-only option. Turns the OpenVPN server instance into a switch that
+understands VLAN\-tagging, based on IEEE 802.1Q.
+.sp
+The server TAP device and each of the connecting clients is seen as a
+port of the switch. All client ports are in untagged mode and the server
+TAP device is VLAN\-tagged, untagged or accepts both, depending on the
+\fB\-\-vlan\-accept\fP setting.
+.sp
+Ethernet frames with a prepended 802.1Q tag are called "tagged". If the
+VLAN Identifier (VID) field in such a tag is non\-zero, the frame is
+called "VLAN\-tagged". If the VID is zero, but the Priority Control Point
+(PCP) field is non\-zero, the frame is called "prio\-tagged". If there is
+no 802.1Q tag, the frame is "untagged".
+.sp
+Using the \fB\-\-vlan\-pvid v\fP option once per client (see
+\-\-client\-config\-dir), each port can be associated with a certain VID.
+Packets can only be forwarded between ports having the same VID.
+Therefore, clients with differing VIDs are completely separated from
+one\-another, even if \fB\-\-client\-to\-client\fP is activated.
+.sp
+The packet filtering takes place in the OpenVPN server. Clients should
+not have any VLAN tagging configuration applied.
+.sp
+The \fB\-\-vlan\-tagging\fP option is off by default. While turned off,
+OpenVPN accepts any Ethernet frame and does not perform any special
+processing for VLAN\-tagged packets.
+.sp
+This option can only be activated in \fB\-\-dev tap mode\fP\&.
+.TP
+.BI \-\-vlan\-accept \ args
+Configure the VLAN tagging policy for the server TAP device.
+.sp
+Valid syntax:
+.INDENT 7.0
+.INDENT 3.5
+.sp
+.nf
+.ft C
+vlan\-accept  all|tagged|untagged
+.ft P
+.fi
+.UNINDENT
+.UNINDENT
+.sp
+The following modes are available:
+.INDENT 7.0
+.TP
+.B \fBtagged\fP
+Admit only VLAN\-tagged frames. Only VLAN\-tagged packets are accepted,
+while untagged or priority\-tagged packets are dropped when entering
+the server TAP device.
+.TP
+.B \fBuntagged\fP
+Admit only untagged and prio\-tagged frames.  VLAN\-tagged packets are
+not accepted, while untagged or priority\-tagged packets entering the
+server TAP device are tagged with the value configured for the global
+\fB\-\-vlan\-pvid\fP setting.
+.TP
+.B \fBall\fP (default)
+Admit all frames.  All packets are admitted and then treated like
+untagged or tagged mode respectively.
+.TP
+.B \fINote\fP:
+Some vendors refer to switch ports running in \fBtagged\fP mode
+as "trunk ports" and switch ports running in \fBuntagged\fP mode
+as "access ports".
+.UNINDENT
+.sp
+Packets forwarded from clients to the server are VLAN\-tagged with the
+originating client\(aqs PVID, unless the VID matches the global
+\fB\-\-vlan\-pvid\fP, in which case the tag is removed.
+.sp
+If no \fIPVID\fP is configured for a given client (see \-\-vlan\-pvid) packets
+are tagged with 1 by default.
+.TP
+.BI \-\-vlan\-pvid \ v
+Specifies which VLAN identifier a "port" is associated with. Only valid
+when \fB\-\-vlan\-tagging\fP is speficied.
+.sp
+In the client context, the setting specifies which VLAN ID a client is
+associated with. In the global context, the VLAN ID of the server TAP
+device is set. The latter only makes sense for \fB\-\-vlan\-accept
+untagged\fP and \fB\-\-vlan\-accept all\fP modes.
+.sp
+Valid values for \fBv\fP go from \fB1\fP through to \fB4094\fP\&. The
+global value defaults to \fB1\fP\&. If no \fB\-\-vlan\-pvid\fP is specified in
+the client context, the global value is inherited.
+.sp
+In some switch implementations, the \fIPVID\fP is also referred to as "Native
+VLAN".
+.UNINDENT
+.SH ENCRYPTION OPTIONS
+.SS SSL Library information
+.INDENT 0.0
+.TP
+.B \-\-show\-ciphers
+(Standalone) Show all cipher algorithms to use with the \fB\-\-cipher\fP
+option.
+.TP
+.B \-\-show\-digests
+(Standalone) Show all message digest algorithms to use with the
+\fB\-\-auth\fP option.
+.TP
+.B \-\-show\-tls
+(Standalone) Show all TLS ciphers supported by the crypto library.
+OpenVPN uses TLS to secure the control channel, over which the keys that
+are used to protect the actual VPN traffic are exchanged. The TLS
+ciphers will be sorted from highest preference (most secure) to lowest.
+.sp
+Be aware that whether a cipher suite in this list can actually work
+depends on the specific setup of both peers (e.g. both peers must
+support the cipher, and an ECDSA cipher suite will not work if you are
+using an RSA certificate, etc.).
+.TP
+.B \-\-show\-engines
+(Standalone) Show currently available hardware\-based crypto acceleration
+engines supported by the OpenSSL library.
+.TP
+.B \-\-show\-groups
+(Standalone) Show all available elliptic curves/groups to use with the
+\fB\-\-ecdh\-curve\fP and \fBtls\-groups\fP options.
+.UNINDENT
+.SS Generating key material
+.INDENT 0.0
+.TP
+.BI \-\-genkey \ args
+(Standalone) Generate a key to be used of the type keytype. if keyfile
+is left out or empty the key will be output on stdout. See the following
+sections for the different keytypes.
+.sp
+Valid syntax:
+.INDENT 7.0
+.INDENT 3.5
+.sp
+.nf
+.ft C
+\-\-genkey keytype keyfile
+.ft P
+.fi
+.UNINDENT
+.UNINDENT
+.sp
+Valid keytype arguments are:
+.sp
+\fBsecret\fP                Standard OpenVPN shared secret keys
+.sp
+\fBtls\-crypt\fP             Alias for \fBsecret\fP
+.sp
+\fBtls\-auth\fP              Alias for \fBsecret\fP
+.sp
+\fBauth\-token\fP            Key used for \fB\-\-auth\-gen\-token\-key\fP
+.sp
+\fBtls\-crypt\-v2\-server\fP   TLS Crypt v2 server key
+.sp
+\fBtls\-crypt\-v2\-client\fP   TLS Crypt v2 client key
+.sp
+Examples:
+.INDENT 7.0
+.INDENT 3.5
+.sp
+.nf
+.ft C
+$ openvpn \-\-genkey secret shared.key
+$ openvpn \-\-genkey tls\-crypt shared.key
+$ openvpn \-\-genkey tls\-auth shared.key
+$ openvpn \-\-genkey tls\-crypt\-v2\-server v2crypt\-server.key
+$ openvpn \-\-tls\-crypt\-v2 v2crypt\-server.key \-\-genkey tls\-crypt\-v2\-client v2crypt\-client\-1.key
+.ft P
+.fi
+.UNINDENT
+.UNINDENT
+.INDENT 7.0
+.IP \(bu 2
+Generating \fIShared Secret Keys\fP
+Generate a shared secret, for use with the \fB\-\-secret\fP, \fB\-\-tls\-auth\fP
+or \fB\-\-tls\-crypt\fP options.
+.sp
+Syntax:
+.INDENT 2.0
+.INDENT 3.5
+.sp
+.nf
+.ft C
+$ openvpn \-\-genkey secret|tls\-crypt|tls\-auth keyfile
+.ft P
+.fi
+.UNINDENT
+.UNINDENT
+.sp
+The key is saved in \fBkeyfile\fP\&. All three variants (\fB\-\-secret\fP,
+\fBtls\-crypt\fP and \fBtls\-auth\fP) generate the same type of key. The
+aliases are added for convenience.
+.sp
+If using this for \fB\-\-secret\fP, this file must be shared with the peer
+over a pre\-existing secure channel such as \fBscp\fP(1).
+.IP \(bu 2
+Generating \fITLS Crypt v2 Server key\fP
+Generate a \fB\-\-tls\-crypt\-v2\fP key to be used by an OpenVPN server.
+The key is stored in \fBkeyfile\fP\&.
+.sp
+Syntax:
+.INDENT 2.0
+.INDENT 3.5
+.sp
+.nf
+.ft C
+\-\-genkey tls\-crypt\-v2\-server keyfile
+.ft P
+.fi
+.UNINDENT
+.UNINDENT
+.IP \(bu 2
+Generating \fITLS Crypt v2 Client key\fP
+Generate a \-\-tls\-crypt\-v2 key to be used by OpenVPN clients.  The
+key is stored in \fBkeyfile\fP\&.
+.sp
+Syntax
+.INDENT 2.0
+.INDENT 3.5
+.sp
+.nf
+.ft C
+\-\-genkey tls\-crypt\-v2\-client keyfile [metadata]
+.ft P
+.fi
+.UNINDENT
+.UNINDENT
+.sp
+If supplied, include the supplied \fBmetadata\fP in the wrapped client
+key. This metadata must be supplied in base64\-encoded form. The
+metadata must be at most 735 bytes long (980 bytes in base64).
+.sp
+If no metadata is supplied, OpenVPN will use a 64\-bit unix timestamp
+representing the current time in UTC, encoded in network order, as
+metadata for the generated key.
+.sp
+A tls\-crypt\-v2 client key is wrapped using a server key. To generate a
+client key, the user must therefore supply the server key using the
+\fB\-\-tls\-crypt\-v2\fP option.
+.sp
+Servers can use \fB\-\-tls\-crypt\-v2\-verify\fP to specify a metadata
+verification command.
+.IP \(bu 2
+Generate \fIAuthentication Token key\fP
+Generate a new secret that can be used with \fB\-\-auth\-gen\-token\-secret\fP
+.sp
+Syntax:
+.INDENT 2.0
+.INDENT 3.5
+.sp
+.nf
+.ft C
+\-\-genkey auth\-token [keyfile]
+.ft P
+.fi
+.UNINDENT
+.UNINDENT
+.INDENT 2.0
+.TP
+.B \fINote:\fP
+This file should be kept secret to the server as anyone that has
+access to this file will be able to generate auth tokens that the
+OpenVPN server will accept as valid.
+.UNINDENT
+.UNINDENT
+.UNINDENT
+.SS Data Channel Renegotiation
+.sp
+When running OpenVPN in client/server mode, the data channel will use a
+separate ephemeral encryption key which is rotated at regular intervals.
+.INDENT 0.0
+.TP
+.BI \-\-reneg\-bytes \ n
+Renegotiate data channel key after \fBn\fP bytes sent or received
+(disabled by default with an exception, see below). OpenVPN allows the
+lifetime of a key to be expressed as a number of bytes
+encrypted/decrypted, a number of packets, or a number of seconds. A key
+renegotiation will be forced if any of these three criteria are met by
+either peer.
+.sp
+If using ciphers with cipher block sizes less than 128\-bits,
+\fB\-\-reneg\-bytes\fP is set to 64MB by default, unless it is explicitly
+disabled by setting the value to \fB0\fP, but this is
+\fBHIGHLY DISCOURAGED\fP as this is designed to add some protection against
+the SWEET32 attack vector. For more information see the \fB\-\-cipher\fP
+option.
+.TP
+.BI \-\-reneg\-pkts \ n
+Renegotiate data channel key after \fBn\fP packets sent and received
+(disabled by default).
+.TP
+.BI \-\-reneg\-sec \ args
+Renegotiate data channel key after at most \fBmax\fP seconds
+(default \fB3600\fP) and at least \fBmin\fP seconds (default is 90% of
+\fBmax\fP for servers, and equal to \fBmax\fP for clients).
+.INDENT 7.0
+.INDENT 3.5
+.sp
+.nf
+.ft C
+reneg\-sec max [min]
+.ft P
+.fi
+.UNINDENT
+.UNINDENT
+.sp
+The effective \fB\-\-reneg\-sec\fP value used is per session
+pseudo\-uniform\-randomized between \fBmin\fP and \fBmax\fP\&.
+.sp
+With the default value of \fB3600\fP this results in an effective per
+session value in the range of \fB3240\fP\&..:code:\fI3600\fP seconds for
+servers, or just 3600 for clients.
+.sp
+When using dual\-factor authentication, note that this default value may
+cause the end user to be challenged to reauthorize once per hour.
+.sp
+Also, keep in mind that this option can be used on both the client and
+server, and whichever uses the lower value will be the one to trigger
+the renegotiation. A common mistake is to set \fB\-\-reneg\-sec\fP to a
+higher value on either the client or server, while the other side of the
+connection is still using the default value of \fB3600\fP seconds,
+meaning that the renegotiation will still occur once per \fB3600\fP
+seconds. The solution is to increase \-\-reneg\-sec on both the client and
+server, or set it to \fB0\fP on one side of the connection (to
+disable), and to your chosen value on the other side.
+.UNINDENT
+.SS TLS Mode Options
+.sp
+TLS mode is the most powerful crypto mode of OpenVPN in both security
+and flexibility. TLS mode works by establishing control and data
+channels which are multiplexed over a single TCP/UDP port. OpenVPN
+initiates a TLS session over the control channel and uses it to exchange
+cipher and HMAC keys to protect the data channel. TLS mode uses a robust
+reliability layer over the UDP connection for all control channel
+communication, while the data channel, over which encrypted tunnel data
+passes, is forwarded without any mediation. The result is the best of
+both worlds: a fast data channel that forwards over UDP with only the
+overhead of encrypt, decrypt, and HMAC functions, and a control channel
+that provides all of the security features of TLS, including
+certificate\-based authentication and Diffie Hellman forward secrecy.
+.sp
+To use TLS mode, each peer that runs OpenVPN should have its own local
+certificate/key pair (\fB\-\-cert\fP and \fB\-\-key\fP), signed by the root
+certificate which is specified in \fB\-\-ca\fP\&.
+.sp
+When two OpenVPN peers connect, each presents its local certificate to
+the other. Each peer will then check that its partner peer presented a
+certificate which was signed by the master root certificate as specified
+in \fB\-\-ca\fP\&.
+.sp
+If that check on both peers succeeds, then the TLS negotiation will
+succeed, both OpenVPN peers will exchange temporary session keys, and
+the tunnel will begin passing data.
+.sp
+The OpenVPN project provides a set of scripts for managing RSA
+certificates and keys: \fI\%https://github.com/OpenVPN/easy\-rsa\fP
+.INDENT 0.0
+.TP
+.BI \-\-askpass \ file
+Get certificate password from console or \fBfile\fP before we daemonize.
+.sp
+Valid syntaxes:
+.INDENT 7.0
+.INDENT 3.5
+.sp
+.nf
+.ft C
+askpass
+askpass file
+.ft P
+.fi
+.UNINDENT
+.UNINDENT
+.sp
+For the extremely security conscious, it is possible to protect your
+private key with a password. Of course this means that every time the
+OpenVPN daemon is started you must be there to type the password. The
+\fB\-\-askpass\fP option allows you to start OpenVPN from the command line.
+It will query you for a password before it daemonizes. To protect a
+private key with a password you should omit the \fB\-nodes\fP option when
+you use the \fBopenssl\fP command line tool to manage certificates and
+private keys.
+.sp
+If \fBfile\fP is specified, read the password from the first line of
+\fBfile\fP\&. Keep in mind that storing your password in a file to a certain
+extent invalidates the extra security provided by using an encrypted
+key.
+.TP
+.BI \-\-ca \ file
+Certificate authority (CA) file in .pem format, also referred to as the
+\fIroot\fP certificate. This file can have multiple certificates in .pem
+format, concatenated together. You can construct your own certificate
+authority certificate and private key by using a command such as:
+.INDENT 7.0
+.INDENT 3.5
+.sp
+.nf
+.ft C
+openssl req \-nodes \-new \-x509 \-keyout ca.key \-out ca.crt
+.ft P
+.fi
+.UNINDENT
+.UNINDENT
+.sp
+Then edit your openssl.cnf file and edit the \fBcertificate\fP variable to
+point to your new root certificate \fBca.crt\fP\&.
+.sp
+For testing purposes only, the OpenVPN distribution includes a sample CA
+certificate (ca.crt). Of course you should never use the test
+certificates and test keys distributed with OpenVPN in a production
+environment, since by virtue of the fact that they are distributed with
+OpenVPN, they are totally insecure.
+.TP
+.BI \-\-capath \ dir
+Directory containing trusted certificates (CAs and CRLs). Not available
+with mbed TLS.
+.sp
+CAs in the capath directory are expected to be named <hash>.<n>. CRLs
+are expected to be named <hash>.r<n>. See the \fB\-CApath\fP option of
+\fBopenssl verify\fP, and the \fB\-hash\fP option of \fBopenssl x509\fP,
+\fBopenssl crl\fP and \fBX509_LOOKUP_hash_dir()\fP(3)
+for more information.
+.sp
+Similar to the \fB\-\-crl\-verify\fP option, CRLs are not mandatory \-
+OpenVPN will log the usual warning in the logs if the relevant CRL is
+missing, but the connection will be allowed.
+.TP
+.BI \-\-cert \ file
+Local peer\(aqs signed certificate in .pem format \-\- must be signed by a
+certificate authority whose certificate is in \fB\-\-ca file\fP\&. Each peer
+in an OpenVPN link running in TLS mode should have its own certificate
+and private key file. In addition, each certificate should have been
+signed by the key of a certificate authority whose public key resides in
+the \fB\-\-ca\fP certificate authority file. You can easily make your own
+certificate authority (see above) or pay money to use a commercial
+service such as thawte.com (in which case you will be helping to finance
+the world\(aqs second space tourist :). To generate a certificate, you can
+use a command such as:
+.INDENT 7.0
+.INDENT 3.5
+.sp
+.nf
+.ft C
+openssl req \-nodes \-new \-keyout mycert.key \-out mycert.csr
+.ft P
+.fi
+.UNINDENT
+.UNINDENT
+.sp
+If your certificate authority private key lives on another machine, copy
+the certificate signing request (mycert.csr) to this other machine (this
+can be done over an insecure channel such as email). Now sign the
+certificate with a command such as:
+.INDENT 7.0
+.INDENT 3.5
+.sp
+.nf
+.ft C
+openssl ca \-out mycert.crt \-in mycert.csr
+.ft P
+.fi
+.UNINDENT
+.UNINDENT
+.sp
+Now copy the certificate (mycert.crt) back to the peer which initially
+generated the .csr file (this can be over a public medium). Note that
+the \fBopenssl ca\fP command reads the location of the certificate
+authority key from its configuration file such as
+\fB/usr/share/ssl/openssl.cnf\fP \-\- note also that for certificate
+authority functions, you must set up the files \fBindex.txt\fP (may be
+empty) and \fBserial\fP (initialize to \fB01\fP).
+.TP
+.BI \-\-crl\-verify \ args
+Check peer certificate against a Certificate Revocation List.
+.sp
+Valid syntax:
+.INDENT 7.0
+.INDENT 3.5
+.sp
+.nf
+.ft C
+crl\-verify file/directory flag
+.ft P
+.fi
+.UNINDENT
+.UNINDENT
+.sp
+Examples:
+.INDENT 7.0
+.INDENT 3.5
+.sp
+.nf
+.ft C
+crl\-verify crl\-file.pem
+crl\-verify /etc/openvpn/crls dir
+.ft P
+.fi
+.UNINDENT
+.UNINDENT
+.sp
+A CRL (certificate revocation list) is used when a particular key is
+compromised but when the overall PKI is still intact.
+.sp
+Suppose you had a PKI consisting of a CA, root certificate, and a number
+of client certificates. Suppose a laptop computer containing a client
+key and certificate was stolen. By adding the stolen certificate to the
+CRL file, you could reject any connection which attempts to use it,
+while preserving the overall integrity of the PKI.
+.sp
+The only time when it would be necessary to rebuild the entire PKI from
+scratch would be if the root certificate key itself was compromised.
+.sp
+The option is not mandatory \- if the relevant CRL is missing, OpenVPN
+will log a warning in the logs \- e.g.
+.INDENT 7.0
+.INDENT 3.5
+.sp
+.nf
+.ft C
+VERIFY WARNING: depth=0, unable to get certificate CRL
+.ft P
+.fi
+.UNINDENT
+.UNINDENT
+.sp
+but the connection will be allowed.  If the optional \fBdir\fP flag
+is specified, enable a different mode where the \fBcrl\-verify\fP is
+pointed at a directory containing files named as revoked serial numbers
+(the files may be empty, the contents are never read). If a client
+requests a connection, where the client certificate serial number
+(decimal string) is the name of a file present in the directory, it will
+be rejected.
+.INDENT 7.0
+.TP
+.B \fINote:\fP
+As the crl file (or directory) is read every time a peer
+connects, if you are dropping root privileges with
+\fB\-\-user\fP, make sure that this user has sufficient
+privileges to read the file.
+.UNINDENT
+.TP
+.BI \-\-dh \ file
+File containing Diffie Hellman parameters in .pem format (required for
+\fB\-\-tls\-server\fP only).
+.sp
+Set \fBfile\fP to \fBnone\fP to disable Diffie Hellman key exchange (and
+use ECDH only). Note that this requires peers to be using an SSL library
+that supports ECDH TLS cipher suites (e.g. OpenSSL 1.0.1+, or
+mbed TLS 2.0+).
+.sp
+Use \fBopenssl dhparam \-out dh2048.pem 2048\fP to generate 2048\-bit DH
+parameters. Diffie Hellman parameters may be considered public.
+.TP
+.BI \-\-ecdh\-curve \ name
+Specify the curve to use for elliptic curve Diffie Hellman. Available
+curves can be listed with \fB\-\-show\-curves\fP\&. The specified curve will
+only be used for ECDH TLS\-ciphers.
+.sp
+This option is not supported in mbed TLS builds of OpenVPN.
+.TP
+.BI \-\-extra\-certs \ file
+Specify a \fBfile\fP containing one or more PEM certs (concatenated
+together) that complete the local certificate chain.
+.sp
+This option is useful for "split" CAs, where the CA for server certs is
+different than the CA for client certs. Putting certs in this file
+allows them to be used to complete the local certificate chain without
+trusting them to verify the peer\-submitted certificate, as would be the
+case if the certs were placed in the \fBca\fP file.
+.TP
+.BI \-\-hand\-window \ n
+Handshake Window \-\- the TLS\-based key exchange must finalize within
+\fBn\fP seconds of handshake initiation by any peer (default \fB60\fP
+seconds). If the handshake fails we will attempt to reset our connection
+with our peer and try again. Even in the event of handshake failure we
+will still use our expiring key for up to \fB\-\-tran\-window\fP seconds to
+maintain continuity of transmission of tunnel data.
+.TP
+.BI \-\-key \ file
+Local peer\(aqs private key in .pem format. Use the private key which was
+generated when you built your peer\(aqs certificate (see \fB\-\-cert file\fP
+above).
+.TP
+.BI \-\-pkcs12 \ file
+Specify a PKCS #12 file containing local private key, local certificate,
+and root CA certificate. This option can be used instead of \fB\-\-ca\fP,
+\fB\-\-cert\fP, and \fB\-\-key\fP\&.  Not available with mbed TLS.
+.TP
+.BI \-\-remote\-cert\-eku \ oid
+Require that peer certificate was signed with an explicit \fIextended key
+usage\fP\&.
+.sp
+This is a useful security option for clients, to ensure that the host
+they connect to is a designated server.
+.sp
+The extended key usage should be encoded in \fIoid notation\fP, or \fIOpenSSL
+symbolic representation\fP\&.
+.TP
+.BI \-\-remote\-cert\-ku \ key\-usage
+Require that peer certificate was signed with an explicit
+\fBkey\-usage\fP\&.
+.sp
+If present in the certificate, the \fBkeyUsage\fP value is validated by
+the TLS library during the TLS handshake. Specifying this option without
+arguments requires this extension to be present (so the TLS library will
+verify it).
+.sp
+If \fBkey\-usage\fP is a list of usage bits, the \fBkeyUsage\fP field
+must have \fIat least\fP the same bits set as the bits in \fIone of\fP the values
+supplied in the \fBkey\-usage\fP list.
+.sp
+The \fBkey\-usage\fP values in the list must be encoded in hex, e.g.
+.INDENT 7.0
+.INDENT 3.5
+.sp
+.nf
+.ft C
+remote\-cert\-ku a0
+.ft P
+.fi
+.UNINDENT
+.UNINDENT
+.TP
+.BI \-\-remote\-cert\-tls \ type
+Require that peer certificate was signed with an explicit \fIkey usage\fP
+and \fIextended key usage\fP based on RFC3280 TLS rules.
+.sp
+Valid syntaxes:
+.INDENT 7.0
+.INDENT 3.5
+.sp
+.nf
+.ft C
+remote\-cert\-tls server
+remote\-cert\-tls client
+.ft P
+.fi
+.UNINDENT
+.UNINDENT
+.sp
+This is a useful security option for clients, to ensure that the host
+they connect to is a designated server. Or the other way around; for a
+server to verify that only hosts with a client certificate can connect.
+.sp
+The \fB\-\-remote\-cert\-tls client\fP option is equivalent to
+.INDENT 7.0
+.INDENT 3.5
+.sp
+.nf
+.ft C
+remote\-cert\-ku
+remote\-cert\-eku "TLS Web Client Authentication"
+.ft P
+.fi
+.UNINDENT
+.UNINDENT
+.sp
+The \fB\-\-remote\-cert\-tls server\fP option is equivalent to
+.INDENT 7.0
+.INDENT 3.5
+.sp
+.nf
+.ft C
+remote\-cert\-ku
+remote\-cert\-eku "TLS Web Server Authentication"
+.ft P
+.fi
+.UNINDENT
+.UNINDENT
+.sp
+This is an important security precaution to protect against a
+man\-in\-the\-middle attack where an authorized client attempts to connect
+to another client by impersonating the server. The attack is easily
+prevented by having clients verify the server certificate using any one
+of \fB\-\-remote\-cert\-tls\fP, \fB\-\-verify\-x509\-name\fP, or \fB\-\-tls\-verify\fP\&.
+.TP
+.BI \-\-tls\-auth \ args
+Add an additional layer of HMAC authentication on top of the TLS control
+channel to mitigate DoS attacks and attacks on the TLS stack.
+.sp
+Valid syntaxes:
+.INDENT 7.0
+.INDENT 3.5
+.sp
+.nf
+.ft C
+tls\-auth file
+tls\-auth file 0
+tls\-auth file 1
+.ft P
+.fi
+.UNINDENT
+.UNINDENT
+.sp
+In a nutshell, \fB\-\-tls\-auth\fP enables a kind of "HMAC firewall" on
+OpenVPN\(aqs TCP/UDP port, where TLS control channel packets bearing an
+incorrect HMAC signature can be dropped immediately without response.
+.sp
+\fBfile\fP (required) is a file in OpenVPN static key format which can be
+generated by \fB\-\-genkey\fP\&.
+.sp
+Older versions (up to OpenVPN 2.3) supported a freeform passphrase file.
+This is no longer supported in newer versions (v2.4+).
+.sp
+See the \fB\-\-secret\fP option for more information on the optional
+\fBdirection\fP parameter.
+.sp
+\fB\-\-tls\-auth\fP is recommended when you are running OpenVPN in a mode
+where it is listening for packets from any IP address, such as when
+\fB\-\-remote\fP is not specified, or \fB\-\-remote\fP is specified with
+\fB\-\-float\fP\&.
+.sp
+The rationale for this feature is as follows. TLS requires a
+multi\-packet exchange before it is able to authenticate a peer. During
+this time before authentication, OpenVPN is allocating resources (memory
+and CPU) to this potential peer. The potential peer is also exposing
+many parts of OpenVPN and the OpenSSL library to the packets it is
+sending. Most successful network attacks today seek to either exploit
+bugs in programs (such as buffer overflow attacks) or force a program to
+consume so many resources that it becomes unusable. Of course the first
+line of defense is always to produce clean, well\-audited code. OpenVPN
+has been written with buffer overflow attack prevention as a top
+priority. But as history has shown, many of the most widely used network
+applications have, from time to time, fallen to buffer overflow attacks.
+.sp
+So as a second line of defense, OpenVPN offers this special layer of
+authentication on top of the TLS control channel so that every packet on
+the control channel is authenticated by an HMAC signature and a unique
+ID for replay protection. This signature will also help protect against
+DoS (Denial of Service) attacks. An important rule of thumb in reducing
+vulnerability to DoS attacks is to minimize the amount of resources a
+potential, but as yet unauthenticated, client is able to consume.
+.sp
+\fB\-\-tls\-auth\fP does this by signing every TLS control channel packet
+with an HMAC signature, including packets which are sent before the TLS
+level has had a chance to authenticate the peer. The result is that
+packets without the correct signature can be dropped immediately upon
+reception, before they have a chance to consume additional system
+resources such as by initiating a TLS handshake. \fB\-\-tls\-auth\fP can be
+strengthened by adding the \fB\-\-replay\-persist\fP option which will keep
+OpenVPN\(aqs replay protection state in a file so that it is not lost
+across restarts.
+.sp
+It should be emphasized that this feature is optional and that the key
+file used with \fB\-\-tls\-auth\fP gives a peer nothing more than the power
+to initiate a TLS handshake. It is not used to encrypt or authenticate
+any tunnel data.
+.sp
+Use \fB\-\-tls\-crypt\fP instead if you want to use the key file to not only
+authenticate, but also encrypt the TLS control channel.
+.TP
+.BI \-\-tls\-groups \ list
+A list of allowable groups/curves in order of preference.
+.sp
+Set the allowed elliptic curves/groups for the TLS session.
+These groups are allowed to be used in signatures and key exchange.
+.sp
+mbedTLS currently allows all known curves per default.
+.sp
+OpenSSL 1.1+ restricts the list per default to
+.INDENT 7.0
+.INDENT 3.5
+.sp
+.nf
+.ft C
+"X25519:secp256r1:X448:secp521r1:secp384r1".
+.ft P
+.fi
+.UNINDENT
+.UNINDENT
+.sp
+If you use certificates that use non\-standard curves, you
+might need to add them here. If you do not force the ecdh curve
+by using \fB\-\-ecdh\-curve\fP, the groups for ecdh will also be picked
+from this list.
+.sp
+OpenVPN maps the curve name \fIsecp256r1\fP to \fIprime256v1\fP to allow
+specifying the same tls\-groups option for mbedTLS and OpenSSL.
+.sp
+Warning: this option not only affects elliptic curve certificates
+but also the key exchange in TLS 1.3 and using this option improperly
+will disable TLS 1.3.
+.TP
+.BI \-\-tls\-cert\-profile \ profile
+Set the allowed cryptographic algorithms for certificates according to
+\fBprofile\fP\&.
+.sp
+The following profiles are supported:
+.INDENT 7.0
+.TP
+.B \fBlegacy\fP (default)
+SHA1 and newer, RSA 2048\-bit+, any elliptic curve.
+.TP
+.B \fBpreferred\fP
+SHA2 and newer, RSA 2048\-bit+, any elliptic curve.
+.TP
+.B \fBsuiteb\fP
+SHA256/SHA384, ECDSA with P\-256 or P\-384.
+.UNINDENT
+.sp
+This option is only fully supported for mbed TLS builds. OpenSSL builds
+use the following approximation:
+.INDENT 7.0
+.TP
+.B \fBlegacy\fP (default)
+sets "security level 1"
+.TP
+.B \fBpreferred\fP
+sets "security level 2"
+.TP
+.B \fBsuiteb\fP
+sets "security level 3" and \fB\-\-tls\-cipher "SUITEB128"\fP\&.
+.UNINDENT
+.sp
+OpenVPN will migrate to \(aqpreferred\(aq as default in the future. Please
+ensure that your keys already comply.
+.UNINDENT
+.INDENT 0.0
+.TP
+.B \fIWARNING:\fP \fB\-\-tls\-ciphers\fP, \fB\-\-tls\-ciphersuites\fP and \fBtls\-groups\fP
+These options are expert features, which \- if used correctly \- can
+improve the security of your VPN connection. But it is also easy to
+unwittingly use them to carefully align a gun with your foot, or just
+break your connection. Use with care!
+.UNINDENT
+.INDENT 0.0
+.TP
+.BI \-\-tls\-cipher \ l
+A list \fBl\fP of allowable TLS ciphers delimited by a colon ("\fB:\fP").
+.sp
+These setting can be used to ensure that certain cipher suites are used
+(or not used) for the TLS connection. OpenVPN uses TLS to secure the
+control channel, over which the keys that are used to protect the actual
+VPN traffic are exchanged.
+.sp
+The supplied list of ciphers is (after potential OpenSSL/IANA name
+translation) simply supplied to the crypto library. Please see the
+OpenSSL and/or mbed TLS documentation for details on the cipher list
+interpretation.
+.sp
+For OpenSSL, the \fB\-\-tls\-cipher\fP is used for TLS 1.2 and below.
+.sp
+Use \fB\-\-show\-tls\fP to see a list of TLS ciphers supported by your crypto
+library.
+.sp
+The default for \fB\-\-tls\-cipher\fP is to use mbed TLS\(aqs default cipher list
+when using mbed TLS or
+\fBDEFAULT:!EXP:!LOW:!MEDIUM:!kDH:!kECDH:!DSS:!PSK:!SRP:!kRSA\fP when
+using OpenSSL.
+.sp
+The default for \fI\-\-tls\-ciphersuites\fP is to use the crypto library\(aqs
+default.
+.TP
+.BI \-\-tls\-ciphersuites \ l
+Same as \fB\-\-tls\-cipher\fP but for TLS 1.3 and up. mbed TLS has no
+TLS 1.3 support yet and only the \fB\-\-tls\-cipher\fP setting is used.
+.TP
+.B \-\-tls\-client
+Enable TLS and assume client role during TLS handshake.
+.TP
+.BI \-\-tls\-crypt \ keyfile
+Encrypt and authenticate all control channel packets with the key from
+\fBkeyfile\fP\&. (See \fB\-\-tls\-auth\fP for more background.)
+.sp
+Encrypting (and authenticating) control channel packets:
+.INDENT 7.0
+.IP \(bu 2
+provides more privacy by hiding the certificate used for the TLS
+connection,
+.IP \(bu 2
+makes it harder to identify OpenVPN traffic as such,
+.IP \(bu 2
+provides "poor\-man\(aqs" post\-quantum security, against attackers who will
+never know the pre\-shared key (i.e. no forward secrecy).
+.UNINDENT
+.sp
+In contrast to \fB\-\-tls\-auth\fP, \fB\-\-tls\-crypt\fP does \fInot\fP require the
+user to set \fB\-\-key\-direction\fP\&.
+.sp
+\fBSecurity Considerations\fP
+.sp
+All peers use the same \fB\-\-tls\-crypt\fP pre\-shared group key to
+authenticate and encrypt control channel messages. To ensure that IV
+collisions remain unlikely, this key should not be used to encrypt more
+than 2^48 client\-to\-server or 2^48 server\-to\-client control channel
+messages. A typical initial negotiation is about 10 packets in each
+direction. Assuming both initial negotiation and renegotiations are at
+most 2^16 (65536) packets (to be conservative), and (re)negotiations
+happen each minute for each user (24/7), this limits the tls\-crypt key
+lifetime to 8171 years divided by the number of users. So a setup with
+1000 users should rotate the key at least once each eight years. (And a
+setup with 8000 users each year.)
+.sp
+If IV collisions were to occur, this could result in the security of
+\fB\-\-tls\-crypt\fP degrading to the same security as using \fB\-\-tls\-auth\fP\&.
+That is, the control channel still benefits from the extra protection
+against active man\-in\-the\-middle\-attacks and DoS attacks, but may no
+longer offer extra privacy and post\-quantum security on top of what TLS
+itself offers.
+.sp
+For large setups or setups where clients are not trusted, consider using
+\fB\-\-tls\-crypt\-v2\fP instead. That uses per\-client unique keys, and
+thereby improves the bounds to \(aqrotate a client key at least once per
+8000 years\(aq.
+.TP
+.BI \-\-tls\-crypt\-v2 \ keyfile
+Use client\-specific tls\-crypt keys.
+.sp
+For clients, \fBkeyfile\fP is a client\-specific tls\-crypt key. Such a key
+can be generated using the \fB\-\-genkey tls\-crypt\-v2\-client\fP option.
+.sp
+For servers, \fBkeyfile\fP is used to unwrap client\-specific keys supplied
+by the client during connection setup. This key must be the same as the
+key used to generate the client\-specific key (see \fB\-\-genkey
+tls\-crypt\-v2\-client\fP).
+.sp
+On servers, this option can be used together with the \fB\-\-tls\-auth\fP or
+\fB\-\-tls\-crypt\fP option. In that case, the server will detect whether the
+client is using client\-specific keys, and automatically select the right
+mode.
+.TP
+.BI \-\-tls\-crypt\-v2\-verify \ cmd
+Run command \fBcmd\fP to verify the metadata of the client\-specific
+tls\-crypt\-v2 key of a connecting client. This allows server
+administrators to reject client connections, before exposing the TLS
+stack (including the notoriously dangerous X.509 and ASN.1 stacks) to
+the connecting client.
+.sp
+OpenVPN supplies the following environment variables to the command:
+.INDENT 7.0
+.IP \(bu 2
+\fBscript_type\fP is set to \fBtls\-crypt\-v2\-verify\fP
+.IP \(bu 2
+\fBmetadata_type\fP is set to \fB0\fP if the metadata was user
+supplied, or \fB1\fP if it\(aqs a 64\-bit unix timestamp representing
+the key creation time.
+.IP \(bu 2
+\fBmetadata_file\fP contains the filename of a temporary file that
+contains the client metadata.
+.UNINDENT
+.sp
+The command can reject the connection by exiting with a non\-zero exit
+code.
+.TP
+.B \-\-tls\-exit
+Exit on TLS negotiation failure.
+.TP
+.BI \-\-tls\-export\-cert \ directory
+Store the certificates the clients use upon connection to this
+directory. This will be done before \fB\-\-tls\-verify\fP is called. The
+certificates will use a temporary name and will be deleted when the
+tls\-verify script returns. The file name used for the certificate is
+available via the \fBpeer_cert\fP environment variable.
+.TP
+.B \-\-tls\-server
+Enable TLS and assume server role during TLS handshake. Note that
+OpenVPN is designed as a peer\-to\-peer application. The designation of
+client or server is only for the purpose of negotiating the TLS control
+channel.
+.TP
+.BI \-\-tls\-timeout \ n
+Packet retransmit timeout on TLS control channel if no acknowledgment
+from remote within \fBn\fP seconds (default \fB2\fP). When OpenVPN sends
+a control packet to its peer, it will expect to receive an
+acknowledgement within \fBn\fP seconds or it will retransmit the packet,
+subject to a TCP\-like exponential backoff algorithm. This parameter only
+applies to control channel packets. Data channel packets (which carry
+encrypted tunnel data) are never acknowledged, sequenced, or
+retransmitted by OpenVPN because the higher level network protocols
+running on top of the tunnel such as TCP expect this role to be left to
+them.
+.TP
+.BI \-\-tls\-version\-min \ args
+Sets the minimum TLS version we will accept from the peer (default is
+"1.0").
+.sp
+Valid syntax:
+.INDENT 7.0
+.INDENT 3.5
+.sp
+.nf
+.ft C
+tls\-version\-min version [\(aqor\-highest\(aq]
+.ft P
+.fi
+.UNINDENT
+.UNINDENT
+.sp
+Examples for version include \fB1.0\fP, \fB1.1\fP, or \fB1.2\fP\&. If
+\fBor\-highest\fP is specified and version is not recognized, we will
+only accept the highest TLS version supported by the local SSL
+implementation.
+.TP
+.BI \-\-tls\-version\-max \ version
+Set the maximum TLS version we will use (default is the highest version
+supported). Examples for version include \fB1.0\fP, \fB1.1\fP, or
+\fB1.2\fP\&.
+.TP
+.BI \-\-verify\-hash \ args
+Specify SHA1 or SHA256 fingerprint for level\-1 cert.
+.sp
+Valid syntax:
+.INDENT 7.0
+.INDENT 3.5
+.sp
+.nf
+.ft C
+verify\-hash hash [algo]
+.ft P
+.fi
+.UNINDENT
+.UNINDENT
+.sp
+The level\-1 cert is the CA (or intermediate cert) that signs the leaf
+certificate, and is one removed from the leaf certificate in the
+direction of the root. When accepting a connection from a peer, the
+level\-1 cert fingerprint must match \fBhash\fP or certificate verification
+will fail. Hash is specified as XX:XX:... For example:
+.INDENT 7.0
+.INDENT 3.5
+.sp
+.nf
+.ft C
+AD:B0:95:D8:09:C8:36:45:12:A9:89:C8:90:09:CB:13:72:A6:AD:16
+.ft P
+.fi
+.UNINDENT
+.UNINDENT
+.sp
+The \fBalgo\fP flag can be either \fBSHA1\fP or \fBSHA256\fP\&. If not
+provided, it defaults to \fBSHA1\fP\&.
+.TP
+.BI \-\-verify\-x509\-name \ args
+Accept connections only if a host\(aqs X.509 name is equal to \fBname.\fP The
+remote host must also pass all other tests of verification.
+.sp
+Valid syntax:
+.INDENT 7.0
+.INDENT 3.5
+.sp
+.nf
+.ft C
+verify\-x509 name type
+.ft P
+.fi
+.UNINDENT
+.UNINDENT
+.sp
+Which X.509 name is compared to \fBname\fP depends on the setting of type.
+\fBtype\fP can be \fBsubject\fP to match the complete subject DN
+(default), \fBname\fP to match a subject RDN or \fBname\-prefix\fP to
+match a subject RDN prefix. Which RDN is verified as name depends on the
+\fB\-\-x509\-username\-field\fP option. But it defaults to the common name
+(CN), e.g. a certificate with a subject DN
+.INDENT 7.0
+.INDENT 3.5
+.sp
+.nf
+.ft C
+C=KG, ST=NA, L=Bishkek, CN=Server\-1
+.ft P
+.fi
+.UNINDENT
+.UNINDENT
+.sp
+would be matched by:
+.INDENT 7.0
+.INDENT 3.5
+.sp
+.nf
+.ft C
+verify\-x509\-name \(aqC=KG, ST=NA, L=Bishkek, CN=Server\-1\(aq
+verify\-x509\-name Server\-1 name
+verify\-x509\-name Server\- name\-prefix
+.ft P
+.fi
+.UNINDENT
+.UNINDENT
+.sp
+The last example is useful if you want a client to only accept
+connections to \fBServer\-1\fP, \fBServer\-2\fP, etc.
+.sp
+\fB\-\-verify\-x509\-name\fP is a useful replacement for the \fB\-\-tls\-verify\fP
+option to verify the remote host, because \fB\-\-verify\-x509\-name\fP works
+in a \fB\-\-chroot\fP environment without any dependencies.
+.sp
+Using a name prefix is a useful alternative to managing a CRL
+(Certificate Revocation List) on the client, since it allows the client
+to refuse all certificates except for those associated with designated
+servers.
+.INDENT 7.0
+.TP
+.B \fINOTE:\fP
+Test against a name prefix only when you are using OpenVPN
+with a custom CA certificate that is under your control. Never use
+this option with type \fBname\-prefix\fP when your client
+certificates are signed by a third party, such as a commercial
+web CA.
+.UNINDENT
+.TP
+.BI \-\-x509\-track \ attribute
+Save peer X509 \fBattribute\fP value in environment for use by plugins and
+management interface. Prepend a \fB+\fP to \fBattribute\fP to save values
+from full cert chain. Values will be encoded as
+\fBX509_<depth>_<attribute>=<value>\fP\&. Multiple \fB\-\-x509\-track\fP
+options can be defined to track multiple attributes.
+.TP
+.BI \-\-x509\-username\-field \ args
+Field in the X.509 certificate subject to be used as the username
+(default \fBCN\fP).
+.sp
+Valid syntax:
+.INDENT 7.0
+.INDENT 3.5
+.sp
+.nf
+.ft C
+x509\-username\-field [ext:]fieldname
+.ft P
+.fi
+.UNINDENT
+.UNINDENT
+.sp
+Typically, this option is specified with \fBfieldname\fP as
+either of the following:
+.INDENT 7.0
+.INDENT 3.5
+.sp
+.nf
+.ft C
+x509\-username\-field emailAddress
+x509\-username\-field ext:subjectAltName
+.ft P
+.fi
+.UNINDENT
+.UNINDENT
+.sp
+The first example uses the value of the \fBemailAddress\fP attribute
+in the certificate\(aqs Subject field as the username. The second example
+uses the \fBext:\fP prefix to signify that the X.509 extension
+\fBfieldname\fP \fBsubjectAltName\fP be searched for an rfc822Name
+(email) field to be used as the username. In cases where there are
+multiple email addresses in \fBext:fieldname\fP, the last occurrence
+is chosen.
+.sp
+When this option is used, the \fB\-\-verify\-x509\-name\fP option will match
+against the chosen \fBfieldname\fP instead of the Common Name.
+.sp
+Only the \fBsubjectAltName\fP and \fBissuerAltName\fP X.509
+extensions are supported.
+.sp
+\fBPlease note:\fP This option has a feature which will convert an
+all\-lowercase \fBfieldname\fP to uppercase characters, e.g.,
+\fBou\fP \-> \fBOU\fP\&. A mixed\-case \fBfieldname\fP or one having the
+\fBext:\fP prefix will be left as\-is. This automatic upcasing feature is
+deprecated and will be removed in a future release.
+.UNINDENT
+.SS PKCS#11 / SmartCard options
+.INDENT 0.0
+.TP
+.BI \-\-pkcs11\-cert\-private \ args
+Set if access to certificate object should be performed after login.
+Every provider has its own setting.
+.sp
+Valid syntaxes:
+.INDENT 7.0
+.INDENT 3.5
+.sp
+.nf
+.ft C
+pkcs11\-cert\-private 0
+pkcs11\-cert\-private 1
+.ft P
+.fi
+.UNINDENT
+.UNINDENT
+.TP
+.BI \-\-pkcs11\-id \ name
+Specify the serialized certificate id to be used. The id can be gotten
+by the standalone \fB\-\-show\-pkcs11\-ids\fP option.
+.TP
+.B \-\-pkcs11\-id\-management
+Acquire PKCS#11 id from management interface. In this case a
+\fBNEED\-STR \(aqpkcs11\-id\-request\(aq\fP real\-time message will be triggered,
+application may use pkcs11\-id\-count command to retrieve available number of
+certificates, and pkcs11\-id\-get command to retrieve certificate id and
+certificate body.
+.TP
+.BI \-\-pkcs11\-pin\-cache \ seconds
+Specify how many seconds the PIN can be cached, the default is until the
+token is removed.
+.TP
+.BI \-\-pkcs11\-private\-mode \ mode
+Specify which method to use in order to perform private key operations.
+A different mode can be specified for each provider. Mode is encoded as
+hex number, and can be a mask one of the following:
+.sp
+\fB0\fP (default)   Try to determine automatically.
+.sp
+\fB1\fP             Use sign.
+.sp
+\fB2\fP             Use sign recover.
+.sp
+\fB4\fP             Use decrypt.
+.sp
+\fB8\fP             Use unwrap.
+.TP
+.BI \-\-pkcs11\-protected\-authentication \ args
+Use PKCS#11 protected authentication path, useful for biometric and
+external keypad devices. Every provider has its own setting.
+.sp
+Valid syntaxes:
+.INDENT 7.0
+.INDENT 3.5
+.sp
+.nf
+.ft C
+pkcs11\-protected\-authentication 0
+pkcs11\-protected\-authentication 1
+.ft P
+.fi
+.UNINDENT
+.UNINDENT
+.TP
+.BI \-\-pkcs11\-providers \ provider
+Specify an RSA Security Inc. PKCS #11 Cryptographic Token Interface
+(Cryptoki) providers to load. This option can be used instead of
+\fB\-\-cert\fP, \fB\-\-key\fP and \fB\-\-pkcs12\fP\&.
+.sp
+If p11\-kit is present on the system, its \fBp11\-kit\-proxy.so\fP module
+will be loaded by default if either the \fB\-\-pkcs11\-id\fP or
+\fB\-\-pkcs11\-id\-management\fP options are specified without
+\fB\-\-pkcs11\-provider\fP being given.
+.TP
+.BI \-\-show\-pkcs11\-ids \ args
+(Standalone) Show PKCS#11 token object list.
+.sp
+Valid syntax:
+.INDENT 7.0
+.INDENT 3.5
+.sp
+.nf
+.ft C
+show\-pkcs11 [provider] [cert_private]
+.ft P
+.fi
+.UNINDENT
+.UNINDENT
+.sp
+Specify \fBcert_private\fP as \fB1\fP if certificates are stored as
+private objects.
+.sp
+If \fIp11\-kit\fP is present on the system, the \fBprovider\fP argument is
+optional; if omitted the default \fBp11\-kit\-proxy.so\fP module will be
+queried.
+.sp
+\fB\-\-verb\fP option can be used BEFORE this option to produce debugging
+information.
+.UNINDENT
+.SH DATA CHANNEL CIPHER NEGOTIATION
+.sp
+OpenVPN 2.4 and higher have the capability to negotiate the data cipher that
+is used to encrypt data packets. This section describes the mechanism in more detail and the
+different backwards compatibility mechanism with older server and clients.
+.SS OpenVPN 2.5 and higher behaviour
+.sp
+When both client and server are at least running OpenVPN 2.5, that the order of
+the ciphers of the server\(aqs \fB\-\-data\-ciphers\fP is used to pick the the data cipher.
+That means that the first cipher in that list that is also in the client\(aqs
+\fB\-\-data\-ciphers\fP list is chosen. If no common cipher is found the client is rejected
+with a AUTH_FAILED message (as seen in client log):
+.INDENT 0.0
+.INDENT 3.5
+AUTH: Received control message: AUTH_FAILED,Data channel cipher negotiation failed (no shared cipher)
+.UNINDENT
+.UNINDENT
+.sp
+OpenVPN 2.5 will only allow the ciphers specified in \fB\-\-data\-ciphers\fP\&. To ensure
+backwards compatibility also if a cipher is specified using the \fB\-\-cipher\fP option
+it is automatically added to this list. If both options are unset the default is
+\fBAES\-256\-GCM:AES\-128\-GCM\fP\&.
+.SS OpenVPN 2.4 clients
+.sp
+The negotiation support in OpenVPN 2.4 was the first iteration of the implementation
+and still had some quirks. Its main goal was "upgrade to AES\-256\-GCM when possible".
+An OpenVPN 2.4 client that is built against a crypto library that supports AES in GCM
+mode and does not have \fB\-\-ncp\-disable\fP will always announce support for
+\fIAES\-256\-GCM\fP and \fIAES\-128\-GCM\fP to a server by sending \fBIV_NCP=2\fP\&.
+.sp
+This only causes a problem if \fB\-\-ncp\-ciphers\fP option has been changed from the
+default of \fBAES\-256\-GCM:AES\-128\-GCM\fP to a value that does not include
+these two ciphers. When a OpenVPN servers try to use \fIAES\-256\-GCM\fP or
+\fIAES\-128\-GCM\fP the connection will then fail. It is therefore recommended to
+always have the \fIAES\-256\-GCM\fP and \fIAES\-128\-GCM\fP ciphers to the \fB\-\-ncp\-ciphers\fP
+options to avoid this behaviour.
+.SS OpenVPN 3 clients
+.sp
+Clients based on the OpenVPN 3.x library (\fI\%https://github.com/openvpn/openvpn3/\fP)
+do not have a configurable \fB\-\-ncp\-ciphers\fP or \fB\-\-data\-ciphers\fP option. Instead
+these clients will announce support for all their supported AEAD ciphers
+(\fIAES\-256\-GCM\fP, \fIAES\-128\-GCM\fP and in newer versions also \fIChacha20\-Poly1305\fP).
+.sp
+To support OpenVPN 3.x based clients at least one of these ciphers needs to be
+included in the server\(aqs \fB\-\-data\-ciphers\fP option.
+.SS OpenVPN 2.3 and older clients (and clients with \fB\-\-ncp\-disable\fP)
+.sp
+When a client without cipher negotiation support connects to a server the
+cipher specified with the \fB\-\-cipher\fP option in the client configuration
+must be included in the \fB\-\-data\-ciphers\fP option of the server to allow
+the client to connect. Otherwise the client will be sent the \fBAUTH_FAILED\fP
+message that indicates no shared cipher.
+.sp
+If the client is 2.3 or older and has been configured with the
+\fB\-\-enable\-small\fP  \fB\&./configure\fP argument, using
+\fBdata\-ciphers\-fallback cipher\fP in the server config file with the explicit
+cipher used by the client is necessary.
+.SS OpenVPN 2.4 server
+.sp
+When a client indicates support for \fIAES\-128\-GCM\fP and \fIAES\-256\-GCM\fP
+(with \fBIV_NCP=2\fP) an OpenVPN 2.4 server will send the first
+cipher of the \fB\-\-ncp\-ciphers\fP to the OpenVPN client regardless of what
+the cipher is. To emulate the behaviour of an OpenVPN 2.4 client as close
+as possible and have compatibility to a setup that depends on this quirk,
+adding  \fIAES\-128\-GCM\fP and \fIAES\-256\-GCM\fP to the client\(aqs \fB\-\-data\-ciphers\fP
+option is required. OpenVPN 2.5+ will only announce the \fBIV_NCP=2\fP flag if
+those ciphers are present.
+.SS OpenVPN 2.3 and older servers (and servers with \fB\-\-ncp\-disable\fP)
+.sp
+The cipher used by the server must be included in \fB\-\-data\-ciphers\fP to
+allow the client connecting to a server without cipher negotiation
+support.
+(For compatibility OpenVPN 2.5 will also accept the cipher set with
+\fB\-\-cipher\fP)
+.sp
+If the server is 2.3 or older and  has been configured with the
+\fB\-\-enable\-small\fP \fB\&./configure\fP argument, adding
+\fBdata\-ciphers\-fallback cipher\fP to the client config with the explicit
+cipher used by the server is necessary.
+.SS Blowfish in CBC mode (BF\-CBC) deprecation
+.sp
+The \fB\-\-cipher\fP option defaulted to \fBBF\-CBC\fP in OpenVPN 2.4 and older
+version. The default was never changed to ensure backwards compatibility.
+In OpenVPN 2.5 this behaviour has now been changed so that if the \fB\-\-cipher\fP
+is not explicitly set it does not allow the weak \fBBF\-CBC\fP cipher any more
+and needs to explicitly added as \fB\-\-cipher BFC\-CBC\fP or added to
+\fB\-\-data\-ciphers\fP\&.
+.sp
+We strongly recommend to switching away from BF\-CBC to a
+more secure cipher as soon as possible instead.
+.SH NETWORK CONFIGURATION
+.sp
+OpenVPN consists of two sides of network configuration.  One side is the
+\fIlink\fP between the local and remote side, the other side is the \fIvirtual
+network adapter\fP (tun/tap device).
+.SS Link Options
+.sp
+This link options section covers options related to the connection between
+the local and the remote host.
+.INDENT 0.0
+.TP
+.BI \-\-bind \ keywords
+Bind to local address and port. This is the default unless any of
+\fB\-\-proto tcp\-client\fP , \fB\-\-http\-proxy\fP or \fB\-\-socks\-proxy\fP are used.
+.sp
+If the optional \fBipv6only\fP keyword is present OpenVPN will bind only
+to IPv6 (as opposed to IPv6 and IPv4) when a IPv6 socket is opened.
+.TP
+.B \-\-float
+Allow remote peer to change its IP address and/or port number, such as
+due to DHCP (this is the default if \fB\-\-remote\fP is not used).
+\fB\-\-float\fP when specified with \fB\-\-remote\fP allows an OpenVPN session
+to initially connect to a peer at a known address, however if packets
+arrive from a new address and pass all authentication tests, the new
+address will take control of the session. This is useful when you are
+connecting to a peer which holds a dynamic address such as a dial\-in
+user or DHCP client.
+.sp
+Essentially, \fB\-\-float\fP tells OpenVPN to accept authenticated packets
+from any address, not only the address which was specified in the
+\fB\-\-remote\fP option.
+.TP
+.BI \-\-fragment \ max
+Enable internal datagram fragmentation so that no UDP datagrams are sent
+which are larger than \fBmax\fP bytes.
+.sp
+The \fBmax\fP parameter is interpreted in the same way as the
+\fB\-\-link\-mtu\fP parameter, i.e. the UDP packet size after encapsulation
+overhead has been added in, but not including the UDP header itself.
+.sp
+The \fB\-\-fragment\fP option only makes sense when you are using the UDP
+protocol (\fB\-\-proto udp\fP).
+.sp
+\fB\-\-fragment\fP adds 4 bytes of overhead per datagram.
+.sp
+See the \fB\-\-mssfix\fP option below for an important related option to
+\fB\-\-fragment\fP\&.
+.sp
+It should also be noted that this option is not meant to replace UDP
+fragmentation at the IP stack level. It is only meant as a last resort
+when path MTU discovery is broken. Using this option is less efficient
+than fixing path MTU discovery for your IP link and using native IP
+fragmentation instead.
+.sp
+Having said that, there are circumstances where using OpenVPN\(aqs internal
+fragmentation capability may be your only option, such as tunneling a
+UDP multicast stream which requires fragmentation.
+.TP
+.BI \-\-keepalive \ args
+A helper directive designed to simplify the expression of \fB\-\-ping\fP and
+\fB\-\-ping\-restart\fP\&.
+.sp
+Valid syntax:
+.INDENT 7.0
+.INDENT 3.5
+.sp
+.nf
+.ft C
+keepalive interval timeout
+.ft P
+.fi
+.UNINDENT
+.UNINDENT
+.sp
+This option can be used on both client and server side, but it is enough
+to add this on the server side as it will push appropriate \fB\-\-ping\fP
+and \fB\-\-ping\-restart\fP options to the client. If used on both server and
+client, the values pushed from server will override the client local
+values.
+.sp
+The \fBtimeout\fP argument will be twice as long on the server side. This
+ensures that a timeout is detected on client side before the server side
+drops the connection.
+.sp
+For example, \fB\-\-keepalive 10 60\fP expands as follows:
+.INDENT 7.0
+.INDENT 3.5
+.sp
+.nf
+.ft C
+if mode server:
+    ping 10                    # Argument: interval
+    ping\-restart 120           # Argument: timeout*2
+    push "ping 10"             # Argument: interval
+    push "ping\-restart 60"     # Argument: timeout
+else
+    ping 10                    # Argument: interval
+    ping\-restart 60            # Argument: timeout
+.ft P
+.fi
+.UNINDENT
+.UNINDENT
+.TP
+.BI \-\-link\-mtu \ n
+Sets an upper bound on the size of UDP packets which are sent between
+OpenVPN peers. \fIIt\(aqs best not to set this parameter unless you know what
+you\(aqre doing.\fP
+.TP
+.BI \-\-local \ host
+Local host name or IP address for bind. If specified, OpenVPN will bind
+to this address only. If unspecified, OpenVPN will bind to all
+interfaces.
+.TP
+.BI \-\-lport \ port
+Set local TCP/UDP port number or name. Cannot be used together with
+\fB\-\-nobind\fP option.
+.TP
+.BI \-\-mark \ value
+Mark encrypted packets being sent with value. The mark value can be
+matched in policy routing and packetfilter rules. This option is only
+supported in Linux and does nothing on other operating systems.
+.TP
+.BI \-\-mode \ m
+Set OpenVPN major mode. By default, OpenVPN runs in point\-to\-point mode
+(\fBp2p\fP). OpenVPN 2.0 introduces a new mode (\fBserver\fP) which
+implements a multi\-client server capability.
+.TP
+.BI \-\-mssfix \ max
+Announce to TCP sessions running over the tunnel that they should limit
+their send packet sizes such that after OpenVPN has encapsulated them,
+the resulting UDP packet size that OpenVPN sends to its peer will not
+exceed \fBmax\fP bytes. The default value is \fB1450\fP\&.
+.sp
+The \fBmax\fP parameter is interpreted in the same way as the
+\fB\-\-link\-mtu\fP parameter, i.e. the UDP packet size after encapsulation
+overhead has been added in, but not including the UDP header itself.
+Resulting packet would be at most 28 bytes larger for IPv4 and 48 bytes
+for IPv6 (20/40 bytes for IP header and 8 bytes for UDP header). Default
+value of 1450 allows IPv4 packets to be transmitted over a link with MTU
+1473 or higher without IP level fragmentation.
+.sp
+The \fB\-\-mssfix\fP option only makes sense when you are using the UDP
+protocol for OpenVPN peer\-to\-peer communication, i.e. \fB\-\-proto udp\fP\&.
+.sp
+\fB\-\-mssfix\fP and \fB\-\-fragment\fP can be ideally used together, where
+\fB\-\-mssfix\fP will try to keep TCP from needing packet fragmentation in
+the first place, and if big packets come through anyhow (from protocols
+other than TCP), \fB\-\-fragment\fP will internally fragment them.
+.sp
+Both \fB\-\-fragment\fP and \fB\-\-mssfix\fP are designed to work around cases
+where Path MTU discovery is broken on the network path between OpenVPN
+peers.
+.sp
+The usual symptom of such a breakdown is an OpenVPN connection which
+successfully starts, but then stalls during active usage.
+.sp
+If \fB\-\-fragment\fP and \fB\-\-mssfix\fP are used together, \fB\-\-mssfix\fP will
+take its default \fBmax\fP parameter from the \fB\-\-fragment max\fP option.
+.sp
+Therefore, one could lower the maximum UDP packet size to 1300 (a good
+first try for solving MTU\-related connection problems) with the
+following options:
+.INDENT 7.0
+.INDENT 3.5
+.sp
+.nf
+.ft C
+\-\-tun\-mtu 1500 \-\-fragment 1300 \-\-mssfix
+.ft P
+.fi
+.UNINDENT
+.UNINDENT
+.TP
+.BI \-\-mtu\-disc \ type
+Should we do Path MTU discovery on TCP/UDP channel? Only supported on
+OSes such as Linux that supports the necessary system call to set.
+.sp
+Valid types:
+.sp
+\fBno\fP      Never send DF (Don\(aqt Fragment) frames
+.sp
+\fBmaybe\fP   Use per\-route hints
+.sp
+\fByes\fP     Always DF (Don\(aqt Fragment)
+.TP
+.B \-\-mtu\-test
+To empirically measure MTU on connection startup, add the \fB\-\-mtu\-test\fP
+option to your configuration. OpenVPN will send ping packets of various
+sizes to the remote peer and measure the largest packets which were
+successfully received. The \fB\-\-mtu\-test\fP process normally takes about 3
+minutes to complete.
+.TP
+.B \-\-nobind
+Do not bind to local address and port. The IP stack will allocate a
+dynamic port for returning packets. Since the value of the dynamic port
+could not be known in advance by a peer, this option is only suitable
+for peers which will be initiating connections by using the \-\-remote
+option.
+.TP
+.B \-\-passtos
+Set the TOS field of the tunnel packet to what the payload\(aqs TOS is.
+.TP
+.BI \-\-ping \ n
+Ping remote over the TCP/UDP control channel if no packets have been
+sent for at least \fBn\fP seconds (specify \fB\-\-ping\fP on both peers to
+cause ping packets to be sent in both directions since OpenVPN ping
+packets are not echoed like IP ping packets). When used in one of
+OpenVPN\(aqs secure modes (where \fB\-\-secret\fP, \fB\-\-tls\-server\fP or
+\fB\-\-tls\-client\fP is specified), the ping packet will be
+cryptographically secure.
+.sp
+This option has two intended uses:
+.INDENT 7.0
+.IP 1. 3
+Compatibility with stateful firewalls. The periodic ping will ensure
+that a stateful firewall rule which allows OpenVPN UDP packets to
+pass will not time out.
+.IP 2. 3
+To provide a basis for the remote to test the existence of its peer
+using the \fB\-\-ping\-exit\fP option.
+.UNINDENT
+.TP
+.BI \-\-ping\-exit \ n
+Causes OpenVPN to exit after \fBn\fP seconds pass without reception of a
+ping or other packet from remote. This option can be combined with
+\fB\-\-inactive\fP, \fB\-\-ping\fP and \fB\-\-ping\-exit\fP to create a two\-tiered
+inactivity disconnect.
+.sp
+For example,
+.INDENT 7.0
+.INDENT 3.5
+.sp
+.nf
+.ft C
+openvpn [options...] \-\-inactive 3600 \-\-ping 10 \-\-ping\-exit 60
+.ft P
+.fi
+.UNINDENT
+.UNINDENT
+.sp
+when used on both peers will cause OpenVPN to exit within 60 seconds if
+its peer disconnects, but will exit after one hour if no actual tunnel
+data is exchanged.
+.TP
+.BI \-\-ping\-restart \ n
+Similar to \fB\-\-ping\-exit\fP, but trigger a \fBSIGUSR1\fP restart after
+\fBn\fP seconds pass without reception of a ping or other packet from
+remote.
+.sp
+This option is useful in cases where the remote peer has a dynamic IP
+address and a low\-TTL DNS name is used to track the IP address using a
+service such as \fI\%http://dyndns.org/\fP + a dynamic DNS client such as
+\fBddclient\fP\&.
+.sp
+If the peer cannot be reached, a restart will be triggered, causing the
+hostname used with \fB\-\-remote\fP to be re\-resolved (if \fB\-\-resolv\-retry\fP
+is also specified).
+.sp
+In server mode, \fB\-\-ping\-restart\fP, \fB\-\-inactive\fP or any other type of
+internally generated signal will always be applied to individual client
+instance objects, never to whole server itself. Note also in server mode
+that any internally generated signal which would normally cause a
+restart, will cause the deletion of the client instance object instead.
+.sp
+In client mode, the \fB\-\-ping\-restart\fP parameter is set to 120 seconds
+by default. This default will hold until the client pulls a replacement
+value from the server, based on the \fB\-\-keepalive\fP setting in the
+server configuration. To disable the 120 second default, set
+\fB\-\-ping\-restart 0\fP on the client.
+.sp
+See the signals section below for more information on \fBSIGUSR1\fP\&.
+.sp
+Note that the behavior of \fBSIGUSR1\fP can be modified by the
+\fB\-\-persist\-tun\fP, \fB\-\-persist\-key\fP, \fB\-\-persist\-local\-ip\fP and
+\fB\-\-persist\-remote\-ip\fP options.
+.sp
+Also note that \fB\-\-ping\-exit\fP and \fB\-\-ping\-restart\fP are mutually
+exclusive and cannot be used together.
+.TP
+.B \-\-ping\-timer\-rem
+Run the \fB\-\-ping\-exit\fP / \fB\-\-ping\-restart\fP timer only if we have a
+remote address. Use this option if you are starting the daemon in listen
+mode (i.e. without an explicit \fB\-\-remote\fP peer), and you don\(aqt want to
+start clocking timeouts until a remote peer connects.
+.TP
+.BI \-\-proto \ p
+Use protocol \fBp\fP for communicating with remote host. \fBp\fP can be
+\fBudp\fP, \fBtcp\-client\fP, or \fBtcp\-server\fP\&.
+.sp
+The default protocol is \fBudp\fP when \fB\-\-proto\fP is not specified.
+.sp
+For UDP operation, \fB\-\-proto udp\fP should be specified on both peers.
+.sp
+For TCP operation, one peer must use \fB\-\-proto tcp\-server\fP and the
+other must use \fB\-\-proto tcp\-client\fP\&. A peer started with
+\fBtcp\-server\fP will wait indefinitely for an incoming connection. A peer
+started with \fBtcp\-client\fP will attempt to connect, and if that fails,
+will sleep for 5 seconds (adjustable via the \fB\-\-connect\-retry\fP option)
+and try again infinite or up to N retries (adjustable via the
+\fB\-\-connect\-retry\-max\fP option). Both TCP client and server will
+simulate a SIGUSR1 restart signal if either side resets the connection.
+.sp
+OpenVPN is designed to operate optimally over UDP, but TCP capability is
+provided for situations where UDP cannot be used. In comparison with
+UDP, TCP will usually be somewhat less efficient and less robust when
+used over unreliable or congested networks.
+.sp
+This article outlines some of problems with tunneling IP over TCP:
+\fI\%http://sites.inka.de/sites/bigred/devel/tcp\-tcp.html\fP
+.sp
+There are certain cases, however, where using TCP may be advantageous
+from a security and robustness perspective, such as tunneling non\-IP or
+application\-level UDP protocols, or tunneling protocols which don\(aqt
+possess a built\-in reliability layer.
+.TP
+.BI \-\-port \ port
+TCP/UDP port number or port name for both local and remote (sets both
+\fB\-\-lport\fP and \fB\-\-rport\fP options to given port). The current default
+of 1194 represents the official IANA port number assignment for OpenVPN
+and has been used since version 2.0\-beta17. Previous versions used port
+5000 as the default.
+.TP
+.BI \-\-rport \ port
+Set TCP/UDP port number or name used by the \fB\-\-remote\fP option. The
+port can also be set directly using the \fB\-\-remote\fP option.
+.TP
+.BI \-\-replay\-window \ args
+Modify the replay protection sliding\-window size and time window.
+.sp
+Valid syntax:
+.INDENT 7.0
+.INDENT 3.5
+.sp
+.nf
+.ft C
+replay\-window n [t]
+.ft P
+.fi
+.UNINDENT
+.UNINDENT
+.sp
+Use a replay protection sliding\-window of size \fBn\fP and a time window
+of \fBt\fP seconds.
+.sp
+By default \fBn\fP is 64 (the IPSec default) and \fBt\fP is 15 seconds.
+.sp
+This option is only relevant in UDP mode, i.e. when either \fB\-\-proto
+udp\fP is specified, or no \fB\-\-proto\fP option is specified.
+.sp
+When OpenVPN tunnels IP packets over UDP, there is the possibility that
+packets might be dropped or delivered out of order. Because OpenVPN,
+like IPSec, is emulating the physical network layer, it will accept an
+out\-of\-order packet sequence, and will deliver such packets in the same
+order they were received to the TCP/IP protocol stack, provided they
+satisfy several constraints.
+.INDENT 7.0
+.IP a. 3
+The packet cannot be a replay (unless \fB\-\-no\-replay\fP is
+specified, which disables replay protection altogether).
+.IP b. 3
+If a packet arrives out of order, it will only be accepted if
+the difference between its sequence number and the highest sequence
+number received so far is less than \fBn\fP\&.
+.IP c. 3
+If a packet arrives out of order, it will only be accepted if it
+arrives no later than \fBt\fP seconds after any packet containing a higher
+sequence number.
+.UNINDENT
+.sp
+If you are using a network link with a large pipeline (meaning that the
+product of bandwidth and latency is high), you may want to use a larger
+value for \fBn\fP\&. Satellite links in particular often require this.
+.sp
+If you run OpenVPN at \fB\-\-verb 4\fP, you will see the message
+"Replay\-window backtrack occurred [x]" every time the maximum sequence
+number backtrack seen thus far increases. This can be used to calibrate
+\fBn\fP\&.
+.sp
+There is some controversy on the appropriate method of handling packet
+reordering at the security layer.
+.sp
+Namely, to what extent should the security layer protect the
+encapsulated protocol from attacks which masquerade as the kinds of
+normal packet loss and reordering that occur over IP networks?
+.sp
+The IPSec and OpenVPN approach is to allow packet reordering within a
+certain fixed sequence number window.
+.sp
+OpenVPN adds to the IPSec model by limiting the window size in time as
+well as sequence space.
+.sp
+OpenVPN also adds TCP transport as an option (not offered by IPSec) in
+which case OpenVPN can adopt a very strict attitude towards message
+deletion and reordering: Don\(aqt allow it. Since TCP guarantees
+reliability, any packet loss or reordering event can be assumed to be an
+attack.
+.sp
+In this sense, it could be argued that TCP tunnel transport is preferred
+when tunneling non\-IP or UDP application protocols which might be
+vulnerable to a message deletion or reordering attack which falls within
+the normal operational parameters of IP networks.
+.sp
+So I would make the statement that one should never tunnel a non\-IP
+protocol or UDP application protocol over UDP, if the protocol might be
+vulnerable to a message deletion or reordering attack that falls within
+the normal operating parameters of what is to be expected from the
+physical IP layer. The problem is easily fixed by simply using TCP as
+the VPN transport layer.
+.TP
+.BI \-\-replay\-persist \ file
+Persist replay\-protection state across sessions using \fBfile\fP to save
+and reload the state.
+.sp
+This option will strengthen protection against replay attacks,
+especially when you are using OpenVPN in a dynamic context (such as with
+\fB\-\-inetd\fP) when OpenVPN sessions are frequently started and stopped.
+.sp
+This option will keep a disk copy of the current replay protection state
+(i.e. the most recent packet timestamp and sequence number received from
+the remote peer), so that if an OpenVPN session is stopped and
+restarted, it will reject any replays of packets which were already
+received by the prior session.
+.sp
+This option only makes sense when replay protection is enabled (the
+default) and you are using either \fB\-\-secret\fP (shared\-secret key mode)
+or TLS mode with \fB\-\-tls\-auth\fP\&.
+.TP
+.BI \-\-socket\-flags \ flags
+Apply the given flags to the OpenVPN transport socket. Currently, only
+\fBTCP_NODELAY\fP is supported.
+.sp
+The \fBTCP_NODELAY\fP socket flag is useful in TCP mode, and causes the
+kernel to send tunnel packets immediately over the TCP connection without
+trying to group several smaller packets into a larger packet.  This can
+result in a considerably improvement in latency.
+.sp
+This option is pushable from server to client, and should be used on
+both client and server for maximum effect.
+.TP
+.B \-\-tcp\-nodelay
+This macro sets the \fBTCP_NODELAY\fP socket flag on the server as well
+as pushes it to connecting clients. The \fBTCP_NODELAY\fP flag disables
+the Nagle algorithm on TCP sockets causing packets to be transmitted
+immediately with low latency, rather than waiting a short period of time
+in order to aggregate several packets into a larger containing packet.
+In VPN applications over TCP, \fBTCP_NODELAY\fP is generally a good
+latency optimization.
+.sp
+The macro expands as follows:
+.INDENT 7.0
+.INDENT 3.5
+.sp
+.nf
+.ft C
+if mode server:
+    socket\-flags TCP_NODELAY
+    push "socket\-flags TCP_NODELAY"
+.ft P
+.fi
+.UNINDENT
+.UNINDENT
+.UNINDENT
+.SS Virtual Network Adapter (VPN interface)
+.sp
+Options in this section relates to configuration of the virtual tun/tap
+network interface, including setting the VPN IP address and network
+routing.
+.INDENT 0.0
+.TP
+.BI \-\-bind\-dev \ device
+(Linux only) Set \fBdevice\fP to bind the server socket to a
+\fI\%Virtual Routing and Forwarding\fP device
+.TP
+.B \-\-block\-ipv6
+On the client, instead of sending IPv6 packets over the VPN tunnel, all
+IPv6 packets are answered with an ICMPv6 no route host message. On the
+server, all IPv6 packets from clients are answered with an ICMPv6 no
+route to host message. This options is intended for cases when IPv6
+should be blocked and other options are not available. \fB\-\-block\-ipv6\fP
+will use the remote IPv6 as source address of the ICMPv6 packets if set,
+otherwise will use \fBfe80::7\fP as source address.
+.sp
+For this option to make sense you actually have to route traffic to the
+tun interface. The following example config block would send all IPv6
+traffic to OpenVPN and answer all requests with no route to host,
+effectively blocking IPv6.
+.INDENT 7.0
+.TP
+.B \fBClient config\fP
+.INDENT 7.0
+.INDENT 3.5
+.sp
+.nf
+.ft C
+\-\-ifconfig\-ipv6 fd15:53b6:dead::2/64 fd15:53b6:dead::1
+\-\-redirect\-gateway ipv6
+\-\-block\-ipv6
+.ft P
+.fi
+.UNINDENT
+.UNINDENT
+.TP
+.B \fBServer config\fP
+Push a "valid" ipv6 config to the client and block on the server
+.INDENT 7.0
+.INDENT 3.5
+.sp
+.nf
+.ft C
+\-\-push "ifconfig\-ipv6 fd15:53b6:dead::2/64 fd15:53b6:dead::1"
+\-\-push "redirect\-gateway ipv6"
+\-\-block\-ipv6
+.ft P
+.fi
+.UNINDENT
+.UNINDENT
+.UNINDENT
+.TP
+.BI \-\-dev \ device
+TUN/TAP virtual network device which can be \fBtunX\fP, \fBtapX\fP,
+\fBnull\fP or an arbitrary name string (\fBX\fP can be omitted for
+a dynamic device.)
+.sp
+See examples section below for an example on setting up a TUN device.
+.sp
+You must use either tun devices on both ends of the connection or tap
+devices on both ends. You cannot mix them, as they represent different
+underlying network layers:
+.INDENT 7.0
+.TP
+.B \fBtun\fP
+devices encapsulate IPv4 or IPv6 (OSI Layer 3)
+.TP
+.B \fBtap\fP
+devices encapsulate Ethernet 802.3 (OSI Layer 2).
+.UNINDENT
+.sp
+Valid syntaxes:
+.INDENT 7.0
+.INDENT 3.5
+.sp
+.nf
+.ft C
+dev tun2
+dev tap4
+dev ovpn
+.ft P
+.fi
+.UNINDENT
+.UNINDENT
+.sp
+When the device name starts with \fBtun\fP or \fBtap\fP, the device
+type is extracted automatically.  Otherwise the \fB\-\-dev\-type\fP option
+needs to be added as well.
+.TP
+.BI \-\-dev\-node \ node
+Explicitly set the device node rather than using \fB/dev/net/tun\fP,
+\fB/dev/tun\fP, \fB/dev/tap\fP, etc. If OpenVPN cannot figure out
+whether \fBnode\fP is a TUN or TAP device based on the name, you should
+also specify \fB\-\-dev\-type tun\fP or \fB\-\-dev\-type tap\fP\&.
+.sp
+Under Mac OS X this option can be used to specify the default tun
+implementation. Using \fB\-\-dev\-node utun\fP forces usage of the native
+Darwin tun kernel support. Use \fB\-\-dev\-node utunN\fP to select a specific
+utun instance. To force using the \fBtun.kext\fP (\fB/dev/tunX\fP)
+use \fB\-\-dev\-node tun\fP\&. When not specifying a \fB\-\-dev\-node\fP option
+openvpn will first try to open utun, and fall back to tun.kext.
+.sp
+On Windows systems, select the TAP\-Win32 adapter which is named \fBnode\fP
+in the Network Connections Control Panel or the raw GUID of the adapter
+enclosed by braces. The \fB\-\-show\-adapters\fP option under Windows can
+also be used to enumerate all available TAP\-Win32 adapters and will show
+both the network connections control panel name and the GUID for each
+TAP\-Win32 adapter.
+.TP
+.BI \-\-dev\-type \ device\-type
+Which device type are we using? \fBdevice\-type\fP should be \fBtun\fP
+(OSI Layer 3) or \fBtap\fP (OSI Layer 2). Use this option only if
+the TUN/TAP device used with \fB\-\-dev\fP does not begin with \fBtun\fP
+or \fBtap\fP\&.
+.TP
+.BI \-\-dhcp\-option \ args
+Set additional network parameters on supported platforms. May be specified
+on the client or pushed from the server. On Windows these options are
+handled by the \fBtap\-windows6\fP driver by default or directly by OpenVPN
+if dhcp is disabled or the \fBwintun\fP driver is in use. The
+\fBOpenVPN for Android\fP client also handles them internally.
+.sp
+On all other platforms these options are only saved in the client\(aqs
+environment under the name \fBforeign_options_{n}\fP before the
+\fB\-\-up\fP script is called. A plugin or an \fB\-\-up\fP script must be used to
+pick up and interpret these as required. Many Linux distributions include
+such scripts and some third\-party user interfaces such as tunnelblick also
+come with scripts that process these options.
+.sp
+Valid syntax:
+.INDENT 7.0
+.INDENT 3.5
+.sp
+.nf
+.ft C
+dhcp\-options type [parm]
+.ft P
+.fi
+.UNINDENT
+.UNINDENT
+.INDENT 7.0
+.TP
+.B \fBDOMAIN\fP \fBname\fP
+Set Connection\-specific DNS Suffix to \fBname\fP\&.
+.TP
+.B \fBDOMAIN\-SEARCH\fP \fBname\fP
+Add \fBname\fP to the domain search list.
+Repeat this option to add more entries. Up to
+10 domains are supported.
+.TP
+.B \fBDNS\fP \fBaddress\fP
+Set primary domain name server IPv4 or IPv6 address.
+Repeat this option to set secondary DNS server addresses.
+.sp
+Note: DNS IPv6 servers are currently set using netsh (the existing
+DHCP code can only do IPv4 DHCP, and that protocol only permits
+IPv4 addresses anywhere). The option will be put into the
+environment, so an \fB\-\-up\fP script could act upon it if needed.
+.TP
+.B \fBWINS\fP \fBaddress\fP
+Set primary WINS server address (NetBIOS over TCP/IP Name Server).
+Repeat this option to set secondary WINS server addresses.
+.TP
+.B \fBNBDD\fP \fBaddress\fP
+Set primary NBDD server address (NetBIOS over TCP/IP Datagram
+Distribution Server). Repeat this option to set secondary NBDD
+server addresses.
+.TP
+.B \fBNTP\fP \fBaddress\fP
+Set primary NTP server address (Network Time Protocol).
+Repeat this option to set secondary NTP server addresses.
+.TP
+.B \fBNBT\fP \fBtype\fP
+Set NetBIOS over TCP/IP Node type. Possible options:
+.INDENT 7.0
+.TP
+.B \fB1\fP
+b\-node (broadcasts)
+.TP
+.B \fB2\fP
+p\-node (point\-to\-point name queries to a WINS server)
+.TP
+.B \fB4\fP
+m\-node (broadcast then query name server)
+.TP
+.B \fB8\fP
+h\-node (query name server, then broadcast).
+.UNINDENT
+.TP
+.B \fBNBS\fP \fBscope\-id\fP
+Set NetBIOS over TCP/IP Scope. A NetBIOS Scope ID provides an
+extended naming service for the NetBIOS over TCP/IP (Known as NBT)
+module. The primary purpose of a NetBIOS scope ID is to isolate
+NetBIOS traffic on a single network to only those nodes with the
+same NetBIOS scope ID. The NetBIOS scope ID is a character string
+that is appended to the NetBIOS name. The NetBIOS scope ID on two
+hosts must match, or the two hosts will not be able to communicate.
+The NetBIOS Scope ID also allows computers to use the same computer
+name, as they have different scope IDs. The Scope ID becomes a part
+of the NetBIOS name, making the name unique. (This description of
+NetBIOS scopes courtesy of \fI\%NeonSurge@abyss.com\fP)
+.TP
+.B \fBDISABLE\-NBT\fP
+Disable Netbios\-over\-TCP/IP.
+.UNINDENT
+.TP
+.BI \-\-ifconfig \ args
+Set TUN/TAP adapter parameters. It requires the \fIIP address\fP of the local
+VPN endpoint. For TUN devices in point\-to\-point mode, the next argument
+must be the VPN IP address of the remote VPN endpoint. For TAP devices,
+or TUN devices used with \fB\-\-topology subnet\fP, the second argument
+is the subnet mask of the virtual network segment which is being created
+or connected to.
+.sp
+For TUN devices, which facilitate virtual point\-to\-point IP connections
+(when used in \fB\-\-topology net30\fP or \fBp2p\fP mode), the proper usage of
+\fB\-\-ifconfig\fP is to use two private IP addresses which are not a member
+of any existing subnet which is in use. The IP addresses may be
+consecutive and should have their order reversed on the remote peer.
+After the VPN is established, by pinging \fBrn\fP, you will be pinging
+across the VPN.
+.sp
+For TAP devices, which provide the ability to create virtual ethernet
+segments, or TUN devices in \fB\-\-topology subnet\fP mode (which create
+virtual "multipoint networks"), \fB\-\-ifconfig\fP is used to set an IP
+address and subnet mask just as a physical ethernet adapter would be
+similarly configured. If you are attempting to connect to a remote
+ethernet bridge, the IP address and subnet should be set to values which
+would be valid on the the bridged ethernet segment (note also that DHCP
+can be used for the same purpose).
+.sp
+This option, while primarily a proxy for the \fBifconfig\fP(8) command,
+is designed to simplify TUN/TAP tunnel configuration by providing a
+standard interface to the different ifconfig implementations on
+different platforms.
+.sp
+\fB\-\-ifconfig\fP parameters which are IP addresses can also be specified
+as a DNS or /etc/hosts file resolvable name.
+.sp
+For TAP devices, \fB\-\-ifconfig\fP should not be used if the TAP interface
+will be getting an IP address lease from a DHCP server.
+.sp
+Examples:
+.INDENT 7.0
+.INDENT 3.5
+.sp
+.nf
+.ft C
+# tun device in net30/p2p mode
+ifconfig 10.8.0.2 10.8.0.1
+
+# tun/tap device in subnet mode
+ifconfig 10.8.0.2 255.255.255.0
+.ft P
+.fi
+.UNINDENT
+.UNINDENT
+.TP
+.BI \-\-ifconfig\-ipv6 \ args
+Configure an IPv6 address on the \fItun\fP device.
+.sp
+Valid syntax:
+.INDENT 7.0
+.INDENT 3.5
+.sp
+.nf
+.ft C
+ifconfig\-ipv6 ipv6addr/bits [ipv6remote]
+.ft P
+.fi
+.UNINDENT
+.UNINDENT
+.sp
+The \fBipv6addr/bits\fP argument is the IPv6 address to use. The
+second parameter is used as route target for \fB\-\-route\-ipv6\fP if no
+gateway is specified.
+.sp
+The \fB\-\-topology\fP option has no influence with \fB\-\-ifconfig\-ipv6\fP
+.TP
+.B \-\-ifconfig\-noexec
+Don\(aqt actually execute ifconfig/netsh commands, instead pass
+\fB\-\-ifconfig\fP parameters to scripts using environmental variables.
+.TP
+.B \-\-ifconfig\-nowarn
+Don\(aqt output an options consistency check warning if the \fB\-\-ifconfig\fP
+option on this side of the connection doesn\(aqt match the remote side.
+This is useful when you want to retain the overall benefits of the
+options consistency check (also see \fB\-\-disable\-occ\fP option) while only
+disabling the ifconfig component of the check.
+.sp
+For example, if you have a configuration where the local host uses
+\fB\-\-ifconfig\fP but the remote host does not, use \fB\-\-ifconfig\-nowarn\fP
+on the local host.
+.sp
+This option will also silence warnings about potential address conflicts
+which occasionally annoy more experienced users by triggering "false
+positive" warnings.
+.TP
+.BI \-\-lladdr \ address
+Specify the link layer address, more commonly known as the MAC address.
+Only applied to TAP devices.
+.TP
+.B \-\-persist\-tun
+Don\(aqt close and reopen TUN/TAP device or run up/down scripts across
+\fBSIGUSR1\fP or \fB\-\-ping\-restart\fP restarts.
+.sp
+\fBSIGUSR1\fP is a restart signal similar to \fBSIGHUP\fP, but which
+offers finer\-grained control over reset options.
+.TP
+.BI \-\-redirect\-gateway \ flags
+Automatically execute routing commands to cause all outgoing IP traffic
+to be redirected over the VPN. This is a client\-side option.
+.sp
+This option performs three steps:
+.INDENT 7.0
+.IP 1. 3
+Create a static route for the \fB\-\-remote\fP address which
+forwards to the pre\-existing default gateway. This is done so that
+\fB(3)\fP will not create a routing loop.
+.IP 2. 3
+Delete the default gateway route.
+.IP 3. 3
+Set the new default gateway to be the VPN endpoint address
+(derived either from \fB\-\-route\-gateway\fP or the second parameter to
+\fB\-\-ifconfig\fP when \fB\-\-dev tun\fP is specified).
+.UNINDENT
+.sp
+When the tunnel is torn down, all of the above steps are reversed so
+that the original default route is restored.
+.sp
+Option flags:
+.INDENT 7.0
+.TP
+.B \fBlocal\fP
+Add the \fBlocal\fP flag if both OpenVPN peers are directly
+connected via a common subnet, such as with wireless. The
+\fBlocal\fP flag will cause step \fB(1)\fP above to be omitted.
+.TP
+.B \fBautolocal\fP
+Try to automatically determine whether to enable \fBlocal\fP
+flag above.
+.TP
+.B \fBdef1\fP
+Use this flag to override the default gateway by using
+\fB0.0.0.0/1\fP and \fB128.0.0.0/1\fP rather than
+\fB0.0.0.0/0\fP\&. This has the benefit of overriding but not
+wiping out the original default gateway.
+.TP
+.B \fBbypass\-dhcp\fP
+Add a direct route to the DHCP server (if it is non\-local) which
+bypasses the tunnel (Available on Windows clients, may not be
+available on non\-Windows clients).
+.TP
+.B \fBbypass\-dns\fP
+Add a direct route to the DNS server(s) (if they are non\-local)
+which bypasses the tunnel (Available on Windows clients, may
+not be available on non\-Windows clients).
+.TP
+.B \fBblock\-local\fP
+Block access to local LAN when the tunnel is active, except for
+the LAN gateway itself. This is accomplished by routing the local
+LAN (except for the LAN gateway address) into the tunnel.
+.TP
+.B \fBipv6\fP
+Redirect IPv6 routing into the tunnel. This works similar to
+the \fBdef1\fP flag, that is, more specific IPv6 routes are added
+(\fB2000::/4\fP, \fB3000::/4\fP), covering the whole IPv6
+unicast space.
+.TP
+.B \fB!ipv4\fP
+Do not redirect IPv4 traffic \- typically used in the flag pair
+\fBipv6 !ipv4\fP to redirect IPv6\-only.
+.UNINDENT
+.TP
+.BI \-\-redirect\-private \ flags
+Like \fB\-\-redirect\-gateway\fP, but omit actually changing the default gateway.
+Useful when pushing private subnets.
+.TP
+.BI \-\-route \ args
+Add route to routing table after connection is established. Multiple
+routes can be specified. Routes will be automatically torn down in
+reverse order prior to TUN/TAP device close.
+.sp
+Valid syntaxes:
+.INDENT 7.0
+.INDENT 3.5
+.sp
+.nf
+.ft C
+route network/IP
+route network/IP netmask
+route network/IP netmask gateway
+route network/IP netmask gateway metric
+.ft P
+.fi
+.UNINDENT
+.UNINDENT
+.sp
+This option is intended as a convenience proxy for the \fBroute\fP(8)
+shell command, while at the same time providing portable semantics
+across OpenVPN\(aqs platform space.
+.INDENT 7.0
+.TP
+.B \fBnetmask\fP
+defaults to \fB255.255.255.255\fP when not given
+.TP
+.B \fBgateway\fP
+default taken from \fB\-\-route\-gateway\fP or the second
+parameter to \fB\-\-ifconfig\fP when \fB\-\-dev tun\fP is specified.
+.TP
+.B \fBmetric\fP
+default taken from \fB\-\-route\-metric\fP if set, otherwise \fB0\fP\&.
+.UNINDENT
+.sp
+The default can be specified by leaving an option blank or setting it to
+\fBdefault\fP\&.
+.sp
+The \fBnetwork\fP and \fBgateway\fP parameters can also be specified as a
+DNS or \fB/etc/hosts\fP file resolvable name, or as one of three special
+keywords:
+.INDENT 7.0
+.TP
+.B \fBvpn_gateway\fP
+The remote VPN endpoint address (derived either from
+\fB\-\-route\-gateway\fP or the second parameter to \fB\-\-ifconfig\fP
+when \fB\-\-dev tun\fP is specified).
+.TP
+.B \fBnet_gateway\fP
+The pre\-existing IP default gateway, read from the
+routing table (not supported on all OSes).
+.TP
+.B \fBremote_host\fP
+The \fB\-\-remote\fP address if OpenVPN is being run in
+client mode, and is undefined in server mode.
+.UNINDENT
+.TP
+.BI \-\-route\-delay \ args
+Valid syntaxes:
+.INDENT 7.0
+.INDENT 3.5
+.sp
+.nf
+.ft C
+route\-delay
+route\-delay n
+route\-delay n m
+.ft P
+.fi
+.UNINDENT
+.UNINDENT
+.sp
+Delay \fBn\fP seconds (default \fB0\fP) after connection establishment,
+before adding routes. If \fBn\fP is \fB0\fP, routes will be added
+immediately upon connection establishment. If \fB\-\-route\-delay\fP is
+omitted, routes will be added immediately after TUN/TAP device open and
+\fB\-\-up\fP script execution, before any \fB\-\-user\fP or \fB\-\-group\fP privilege
+downgrade (or \fB\-\-chroot\fP execution.)
+.sp
+This option is designed to be useful in scenarios where DHCP is used to
+set tap adapter addresses. The delay will give the DHCP handshake time
+to complete before routes are added.
+.sp
+On Windows, \fB\-\-route\-delay\fP tries to be more intelligent by waiting
+\fBw\fP seconds (default \fB30\fP by default) for the TAP\-Win32 adapter
+to come up before adding routes.
+.TP
+.BI \-\-route\-ipv6 \ args
+Setup IPv6 routing in the system to send the specified IPv6 network into
+OpenVPN\(aqs \fItun\fP\&.
+.sp
+Valid syntax:
+.INDENT 7.0
+.INDENT 3.5
+.sp
+.nf
+.ft C
+route\-ipv6 ipv6addr/bits [gateway] [metric]
+.ft P
+.fi
+.UNINDENT
+.UNINDENT
+.sp
+The gateway parameter is only used for IPv6 routes across \fItap\fP devices,
+and if missing, the \fBipv6remote\fP field from \fB\-\-ifconfig\-ipv6\fP or
+\fB\-\-route\-ipv6\-gateway\fP is used.
+.TP
+.BI \-\-route\-gateway \ arg
+Specify a default \fIgateway\fP for use with \fB\-\-route\fP\&.
+.sp
+If \fBdhcp\fP is specified as the parameter, the gateway address will
+be extracted from a DHCP negotiation with the OpenVPN server\-side LAN.
+.sp
+Valid syntaxes:
+.INDENT 7.0
+.INDENT 3.5
+.sp
+.nf
+.ft C
+route\-gateway gateway
+route\-gateway dhcp
+.ft P
+.fi
+.UNINDENT
+.UNINDENT
+.TP
+.BI \-\-route\-ipv6\-gateway \ gw
+Specify a default gateway \fBgw\fP for use with \fB\-\-route\-ipv6\fP\&.
+.TP
+.BI \-\-route\-metric \ m
+Specify a default metric \fBm\fP for use with \fB\-\-route\fP\&.
+.TP
+.B \-\-route\-noexec
+Don\(aqt add or remove routes automatically. Instead pass routes to
+\fB\-\-route\-up\fP script using environmental variables.
+.TP
+.B \-\-route\-nopull
+When used with \fB\-\-client\fP or \fB\-\-pull\fP, accept options pushed by
+server EXCEPT for routes, block\-outside\-dns and dhcp options like DNS
+servers.
+.sp
+When used on the client, this option effectively bars the server from
+adding routes to the client\(aqs routing table, however note that this
+option still allows the server to set the TCP/IP properties of the
+client\(aqs TUN/TAP interface.
+.TP
+.BI \-\-topology \ mode
+Configure virtual addressing topology when running in \fB\-\-dev tun\fP
+mode. This directive has no meaning in \fB\-\-dev tap\fP mode, which always
+uses a \fBsubnet\fP topology.
+.sp
+If you set this directive on the server, the \fB\-\-server\fP and
+\fB\-\-server\-bridge\fP directives will automatically push your chosen
+topology setting to clients as well. This directive can also be manually
+pushed to clients. Like the \fB\-\-dev\fP directive, this directive must
+always be compatible between client and server.
+.sp
+\fBmode\fP can be one of:
+.INDENT 7.0
+.TP
+.B \fBnet30\fP
+Use a point\-to\-point topology, by allocating one /30 subnet
+per client. This is designed to allow point\-to\-point semantics when some
+or all of the connecting clients might be Windows systems. This is the
+default on OpenVPN 2.0.
+.TP
+.B \fBp2p\fP
+Use a point\-to\-point topology where the remote endpoint of
+the client\(aqs tun interface always points to the local endpoint of the
+server\(aqs tun interface. This mode allocates a single IP address per
+connecting client. Only use when none of the connecting clients are
+Windows systems.
+.TP
+.B \fBsubnet\fP
+Use a subnet rather than a point\-to\-point topology by
+configuring the tun interface with a local IP address and subnet mask,
+similar to the topology used in \fB\-\-dev tap\fP and ethernet bridging
+mode. This mode allocates a single IP address per connecting client and
+works on Windows as well. Only available when server and clients are
+OpenVPN 2.1 or higher, or OpenVPN 2.0.x which has been manually patched
+with the \fB\-\-topology\fP directive code. When used on Windows, requires
+version 8.2 or higher of the TAP\-Win32 driver. When used on *nix,
+requires that the tun driver supports an \fBifconfig\fP(8) command which
+sets a subnet instead of a remote endpoint IP address.
+.UNINDENT
+.sp
+\fINote:\fP Using \fB\-\-topology subnet\fP changes the interpretation of the
+arguments of \fB\-\-ifconfig\fP to mean "address netmask", no longer "local
+remote".
+.TP
+.BI \-\-tun\-mtu \ n
+Take the TUN device MTU to be \fBn\fP and derive the link MTU from it
+(default \fB1500\fP). In most cases, you will probably want to leave
+this parameter set to its default value.
+.sp
+The MTU (Maximum Transmission Units) is the maximum datagram size in
+bytes that can be sent unfragmented over a particular network path.
+OpenVPN requires that packets on the control and data channels be sent
+unfragmented.
+.sp
+MTU problems often manifest themselves as connections which hang during
+periods of active usage.
+.sp
+It\(aqs best to use the \fB\-\-fragment\fP and/or \fB\-\-mssfix\fP options to deal
+with MTU sizing issues.
+.TP
+.BI \-\-tun\-mtu\-extra \ n
+Assume that the TUN/TAP device might return as many as \fBn\fP bytes more
+than the \fB\-\-tun\-mtu\fP size on read. This parameter defaults to 0, which
+is sufficient for most TUN devices. TAP devices may introduce additional
+overhead in excess of the MTU size, and a setting of 32 is the default
+when TAP devices are used. This parameter only controls internal OpenVPN
+buffer sizing, so there is no transmission overhead associated with
+using a larger value.
+.UNINDENT
+.SS TUN/TAP standalone operations
+.sp
+These two standalone operations will require \fB\-\-dev\fP and optionally
+\fB\-\-user\fP and/or \fB\-\-group\fP\&.
+.INDENT 0.0
+.TP
+.B \-\-mktun
+(Standalone) Create a persistent tunnel on platforms which support them
+such as Linux. Normally TUN/TAP tunnels exist only for the period of
+time that an application has them open. This option takes advantage of
+the TUN/TAP driver\(aqs ability to build persistent tunnels that live
+through multiple instantiations of OpenVPN and die only when they are
+deleted or the machine is rebooted.
+.sp
+One of the advantages of persistent tunnels is that they eliminate the
+need for separate \fB\-\-up\fP and \fB\-\-down\fP scripts to run the appropriate
+\fBifconfig\fP(8) and \fBroute\fP(8) commands. These commands can be
+placed in the the same shell script which starts or terminates an
+OpenVPN session.
+.sp
+Another advantage is that open connections through the TUN/TAP\-based
+tunnel will not be reset if the OpenVPN peer restarts. This can be
+useful to provide uninterrupted connectivity through the tunnel in the
+event of a DHCP reset of the peer\(aqs public IP address (see the
+\fB\-\-ipchange\fP option above).
+.sp
+One disadvantage of persistent tunnels is that it is harder to
+automatically configure their MTU value (see \fB\-\-link\-mtu\fP and
+\fB\-\-tun\-mtu\fP above).
+.sp
+On some platforms such as Windows, TAP\-Win32 tunnels are persistent by
+default.
+.TP
+.B \-\-rmtun
+(Standalone) Remove a persistent tunnel.
+.UNINDENT
+.SS Virtual Routing and Forwarding
+.sp
+Options in this section relates to configuration of virtual routing and
+forwarding in combination with the underlying operating system.
+.sp
+As of today this is only supported on Linux, a kernel >= 4.9 is
+recommended.
+.sp
+This could come in handy when for example the external network should be
+only used as a means to connect to some VPN endpoints and all regular
+traffic should only be routed through any tunnel(s).  This could be
+achieved by setting up a VRF and configuring the interface connected to
+the external network to be part of the VRF. The examples below will cover
+this setup.
+.sp
+Another option would be to put the tun/tap interface into a VRF. This could
+be done by an up\-script which uses the \fBip link set\fP command shown
+below.
+.SS VRF setup with iproute2
+.sp
+Create VRF \fBvrf_external\fP and map it to routing table \fB1023\fP
+.INDENT 0.0
+.INDENT 3.5
+.sp
+.nf
+.ft C
+ip link add vrf_external type vrf table 1023
+.ft P
+.fi
+.UNINDENT
+.UNINDENT
+.sp
+Move \fBeth0\fP into \fBvrf_external\fP
+.INDENT 0.0
+.INDENT 3.5
+.sp
+.nf
+.ft C
+ip link set master vrf_external dev eth0
+.ft P
+.fi
+.UNINDENT
+.UNINDENT
+.sp
+Any prefixes configured on \fBeth0\fP will be moved from the :code\(gamain\(ga
+routing table into routing table \fI1023\fP
+.SS VRF setup with ifupdown
+.sp
+For Debian based Distributions \fBifupdown2\fP provides an almost drop\-in
+replacement for \fBifupdown\fP including VRFs and other features.
+A configuration for an interface \fBeth0\fP being part of VRF
+code:\fIvrf_external\fP could look like this:
+.INDENT 0.0
+.INDENT 3.5
+.sp
+.nf
+.ft C
+auto eth0
+iface eth0
+    address 192.0.2.42/24
+    address 2001:db8:08:15::42/64
+    gateway 192.0.2.1
+    gateway 2001:db8:08:15::1
+    vrf vrf_external
+
+auto vrf_external
+iface vrf_external
+    vrf\-table 1023
+.ft P
+.fi
+.UNINDENT
+.UNINDENT
+.SS OpenVPN configuration
+.sp
+The OpenVPN configuration needs to contain this line:
+.INDENT 0.0
+.INDENT 3.5
+.sp
+.nf
+.ft C
+bind\-dev vrf_external
+.ft P
+.fi
+.UNINDENT
+.UNINDENT
+.SS Further reading
+.sp
+Wikipedia has nice page one VRFs: \fI\%https://en.wikipedia.org/wiki/Virtual_routing_and_forwarding\fP
+.sp
+This talk from the Network Track of FrOSCon 2018 provides an overview about
+advanced layer 2 and layer 3 features of Linux
+.INDENT 0.0
+.INDENT 3.5
+.INDENT 0.0
+.IP \(bu 2
+Slides: \fI\%https://www.slideshare.net/BarbarossaTM/l2l3\-fr\-fortgeschrittene\-helle\-und\-dunkle\-magie\-im\-linuxnetzwerkstack\fP
+.IP \(bu 2
+Video (german): \fI\%https://media.ccc.de/v/froscon2018\-2247\-l2_l3_fur_fortgeschrittene_\-_helle_und_dunkle_magie_im_linux\-netzwerkstack\fP
+.UNINDENT
+.UNINDENT
+.UNINDENT
+.SH SCRIPTING INTEGRATION
+.sp
+OpenVPN can execute external scripts in various phases of the lifetime of
+the OpenVPN process.
+.SS Script Order of Execution
+.INDENT 0.0
+.IP 1. 4
+\fB\-\-up\fP
+.sp
+Executed after TCP/UDP socket bind and TUN/TAP open.
+.IP 2. 4
+\fB\-\-tls\-verify\fP
+.sp
+Executed when we have a still untrusted remote peer.
+.IP 3. 4
+\fB\-\-ipchange\fP
+.sp
+Executed after connection authentication, or remote IP address change.
+.IP 4. 4
+\fB\-\-client\-connect\fP
+.sp
+Executed in \fB\-\-mode server\fP mode immediately after client
+authentication.
+.IP 5. 4
+\fB\-\-route\-up\fP
+.sp
+Executed after connection authentication, either immediately after, or
+some number of seconds after as defined by the \fB\-\-route\-delay\fP option.
+.IP 6. 4
+\fB\-\-route\-pre\-down\fP
+.sp
+Executed right before the routes are removed.
+.IP 7. 4
+\fB\-\-client\-disconnect\fP
+.sp
+Executed in \fB\-\-mode server\fP mode on client instance shutdown.
+.IP 8. 4
+\fB\-\-down\fP
+.sp
+Executed after TCP/UDP and TUN/TAP close.
+.IP 9. 4
+\fB\-\-learn\-address\fP
+.sp
+Executed in \fB\-\-mode server\fP mode whenever an IPv4 address/route or MAC
+address is added to OpenVPN\(aqs internal routing table.
+.IP 10. 4
+\fB\-\-auth\-user\-pass\-verify\fP
+.sp
+Executed in \fB\-\-mode server\fP mode on new client connections, when the
+client is still untrusted.
+.UNINDENT
+.SS SCRIPT HOOKS
+.INDENT 0.0
+.TP
+.BI \-\-auth\-user\-pass\-verify \ args
+Require the client to provide a username/password (possibly in addition
+to a client certificate) for authentication.
+.sp
+Valid syntax:
+.INDENT 7.0
+.INDENT 3.5
+.sp
+.nf
+.ft C
+auth\-user\-pass\-verify cmd method
+.ft P
+.fi
+.UNINDENT
+.UNINDENT
+.sp
+OpenVPN will run command \fBcmd\fP to validate the username/password
+provided by the client.
+.sp
+\fBcmd\fP consists of a path to a script (or executable program), optionally
+followed by arguments. The path and arguments may be single\- or
+double\-quoted and/or escaped using a backslash, and should be separated
+by one or more spaces.
+.sp
+If \fBmethod\fP is set to \fBvia\-env\fP, OpenVPN will call \fBscript\fP
+with the environmental variables \fBusername\fP and \fBpassword\fP
+set to the username/password strings provided by the client. \fIBeware\fP
+that this method is insecure on some platforms which make the environment
+of a process publicly visible to other unprivileged processes.
+.sp
+If \fBmethod\fP is set to \fBvia\-file\fP, OpenVPN will write the username
+and password to the first two lines of a temporary file. The filename
+will be passed as an argument to \fBscript\fP, and the file will be
+automatically deleted by OpenVPN after the script returns. The location
+of the temporary file is controlled by the \fB\-\-tmp\-dir\fP option, and
+will default to the current directory if unspecified. For security,
+consider setting \fB\-\-tmp\-dir\fP to a volatile storage medium such as
+\fB/dev/shm\fP (if available) to prevent the username/password file
+from touching the hard drive.
+.sp
+The script should examine the username and password, returning a success
+exit code (\fB0\fP) if the client\(aqs authentication request is to be
+accepted, or a failure code (\fB1\fP) to reject the client.
+.sp
+This directive is designed to enable a plugin\-style interface for
+extending OpenVPN\(aqs authentication capabilities.
+.sp
+To protect against a client passing a maliciously formed username or
+password string, the username string must consist only of these
+characters: alphanumeric, underbar (\(aq\fB_\fP\(aq), dash (\(aq\fB\-\fP\(aq),
+dot (\(aq\fB\&.\fP\(aq), or at (\(aq\fB@\fP\(aq). The password string can consist
+of any printable characters except for CR or LF. Any illegal characters
+in either the username or password string will be converted to
+underbar (\(aq\fB_\fP\(aq).
+.sp
+Care must be taken by any user\-defined scripts to avoid creating a
+security vulnerability in the way that these strings are handled. Never
+use these strings in such a way that they might be escaped or evaluated
+by a shell interpreter.
+.sp
+For a sample script that performs PAM authentication, see
+\fBsample\-scripts/auth\-pam.pl\fP in the OpenVPN source distribution.
+.TP
+.BI \-\-client\-connect \ cmd
+Run command \fBcmd\fP on client connection.
+.sp
+\fBcmd\fP consists of a path to a script (or executable program), optionally
+followed by arguments. The path and arguments may be single\- or
+double\-quoted and/or escaped using a backslash, and should be separated
+by one or more spaces.
+.sp
+The command is passed the common name and IP address of the
+just\-authenticated client as environmental variables (see environmental
+variable section below). The command is also passed the pathname of a
+freshly created temporary file as the last argument (after any arguments
+specified in \fBcmd\fP ), to be used by the command to pass dynamically
+generated config file directives back to OpenVPN.
+.sp
+If the script wants to generate a dynamic config file to be applied on
+the server when the client connects, it should write it to the file
+named by the last argument.
+.sp
+See the \fB\-\-client\-config\-dir\fP option below for options which can be
+legally used in a dynamically generated config file.
+.sp
+Note that the return value of \fBscript\fP is significant. If \fBscript\fP
+returns a non\-zero error status, it will cause the client to be
+disconnected.
+.sp
+If a \fB\-\-client\-connect\fP wants to defer the generating of the
+configuration then the script needs to use the
+\fBclient_connect_deferred_file\fP and
+\fBclient_connect_config_file\fP environment variables, and write
+status accordingly into these files.  See the \fI\%Environmental Variables\fP
+section for more details.
+.TP
+.BI \-\-client\-disconnect \ cmd
+Like \fB\-\-client\-connect\fP but called on client instance shutdown. Will
+not be called unless the \fB\-\-client\-connect\fP script and plugins (if
+defined) were previously called on this instance with successful (0)
+status returns.
+.sp
+The exception to this rule is if the \fB\-\-client\-disconnect\fP command or
+plugins are cascaded, and at least one client\-connect function
+succeeded, then ALL of the client\-disconnect functions for scripts and
+plugins will be called on client instance object deletion, even in cases
+where some of the related client\-connect functions returned an error
+status.
+.sp
+The \fB\-\-client\-disconnect\fP command is passed the same pathname as the
+corresponding \fB\-\-client\-connect\fP command as its last argument (after
+any arguments specified in \fBcmd\fP).
+.TP
+.BI \-\-down \ cmd
+Run command \fBcmd\fP after TUN/TAP device close (post \fB\-\-user\fP UID
+change and/or \fB\-\-chroot\fP ). \fBcmd\fP consists of a path to script (or
+executable program), optionally followed by arguments. The path and
+arguments may be single\- or double\-quoted and/or escaped using a
+backslash, and should be separated by one or more spaces.
+.sp
+Called with the same parameters and environmental variables as the
+\fB\-\-up\fP option above.
+.sp
+Note that if you reduce privileges by using \fB\-\-user\fP and/or
+\fB\-\-group\fP, your \fB\-\-down\fP script will also run at reduced privilege.
+.TP
+.B \-\-down\-pre
+Call \fB\-\-down\fP cmd/script before, rather than after, TUN/TAP close.
+.TP
+.BI \-\-ipchange \ cmd
+Run command \fBcmd\fP when our remote ip\-address is initially
+authenticated or changes.
+.sp
+\fBcmd\fP consists of a path to a script (or executable program), optionally
+followed by arguments. The path and arguments may be single\- or
+double\-quoted and/or escaped using a backslash, and should be separated
+by one or more spaces.
+.sp
+When \fBcmd\fP is executed two arguments are appended after any arguments
+specified in \fBcmd\fP , as follows:
+.INDENT 7.0
+.INDENT 3.5
+.sp
+.nf
+.ft C
+cmd ip address port number
+.ft P
+.fi
+.UNINDENT
+.UNINDENT
+.sp
+Don\(aqt use \fB\-\-ipchange\fP in \fB\-\-mode server\fP mode. Use a
+\fB\-\-client\-connect\fP script instead.
+.sp
+See the \fI\%Environmental Variables\fP section below for additional
+parameters passed as environmental variables.
+.sp
+If you are running in a dynamic IP address environment where the IP
+addresses of either peer could change without notice, you can use this
+script, for example, to edit the \fB/etc/hosts\fP file with the current
+address of the peer. The script will be run every time the remote peer
+changes its IP address.
+.sp
+Similarly if \fIour\fP IP address changes due to DHCP, we should configure
+our IP address change script (see man page for \fBdhcpcd\fP(8)) to
+deliver a \fBSIGHUP\fP or \fBSIGUSR1\fP signal to OpenVPN. OpenVPN will
+then re\-establish a connection with its most recently authenticated
+peer on its new IP address.
+.TP
+.BI \-\-learn\-address \ cmd
+Run command \fBcmd\fP to validate client virtual addresses or routes.
+.sp
+\fBcmd\fP consists of a path to a script (or executable program), optionally
+followed by arguments. The path and arguments may be single\- or
+double\-quoted and/or escaped using a backslash, and should be separated
+by one or more spaces.
+.sp
+Three arguments will be appended to any arguments in \fBcmd\fP as follows:
+.INDENT 7.0
+.TP
+.B \fB$1\fP \- [operation]
+\fB"add"\fP, \fB"update"\fP, or \fB"delete"\fP based on whether
+or not the address is being added to, modified, or deleted from
+OpenVPN\(aqs internal routing table.
+.TP
+.B \fB$2\fP \- [address]
+The address being learned or unlearned. This can be an IPv4 address
+such as \fB"198.162.10.14"\fP, an IPv4 subnet such as
+\fB"198.162.10.0/24"\fP, or an ethernet MAC address (when
+\fB\-\-dev tap\fP is being used) such as \fB"00:FF:01:02:03:04"\fP\&.
+.TP
+.B \fB$3\fP \- [common name]
+The common name on the certificate associated with the client linked
+to this address. Only present for \fB"add"\fP or \fB"update"\fP
+operations, not \fB"delete"\fP\&.
+.UNINDENT
+.sp
+On \fB"add"\fP or \fB"update"\fP methods, if the script returns
+a failure code (non\-zero), OpenVPN will reject the address and will not
+modify its internal routing table.
+.sp
+Normally, the \fBcmd\fP script will use the information provided above to
+set appropriate firewall entries on the VPN TUN/TAP interface. Since
+OpenVPN provides the association between virtual IP or MAC address and
+the client\(aqs authenticated common name, it allows a user\-defined script
+to configure firewall access policies with regard to the client\(aqs
+high\-level common name, rather than the low level client virtual
+addresses.
+.TP
+.BI \-\-route\-up \ cmd
+Run command \fBcmd\fP after routes are added, subject to \fB\-\-route\-delay\fP\&.
+.sp
+\fBcmd\fP consists of a path to a script (or executable program), optionally
+followed by arguments. The path and arguments may be single\- or
+double\-quoted and/or escaped using a backslash, and should be separated
+by one or more spaces.
+.sp
+See the \fI\%Environmental Variables\fP section below for additional
+parameters passed as environmental variables.
+.TP
+.BI \-\-route\-pre\-down \ cmd
+Run command \fBcmd\fP before routes are removed upon disconnection.
+.sp
+\fBcmd\fP consists of a path to a script (or executable program), optionally
+followed by arguments. The path and arguments may be single\- or
+double\-quoted and/or escaped using a backslash, and should be separated
+by one or more spaces.
+.sp
+See the \fI\%Environmental Variables\fP section below for additional
+parameters passed as environmental variables.
+.TP
+.BI \-\-setenv \ args
+Set a custom environmental variable \fBname=value\fP to pass to script.
+.sp
+Valid syntaxes:
+.INDENT 7.0
+.INDENT 3.5
+.sp
+.nf
+.ft C
+setenv name value
+setenv FORWARD_COMPATIBLE 1
+setenv opt config_option
+.ft P
+.fi
+.UNINDENT
+.UNINDENT
+.sp
+By setting \fBFORWARD_COMPATIBLE\fP to \fB1\fP, the config file
+syntax checking is relaxed so that unknown directives will trigger a
+warning but not a fatal error, on the assumption that a given unknown
+directive might be valid in future OpenVPN versions.
+.sp
+This option should be used with caution, as there are good security
+reasons for having OpenVPN fail if it detects problems in a config file.
+Having said that, there are valid reasons for wanting new software
+features to gracefully degrade when encountered by older software
+versions.
+.sp
+It is also possible to tag a single directive so as not to trigger a
+fatal error if the directive isn\(aqt recognized. To do this, prepend the
+following before the directive: \fBsetenv opt\fP
+.sp
+Versions prior to OpenVPN 2.3.3 will always ignore options set with the
+\fBsetenv opt\fP directive.
+.sp
+See also \fB\-\-ignore\-unknown\-option\fP
+.TP
+.BI \-\-setenv\-safe \ args
+Set a custom environmental variable \fBOPENVPN_name\fP to \fBvalue\fP
+to pass to scripts.
+.sp
+Valid syntaxes:
+.INDENT 7.0
+.INDENT 3.5
+.sp
+.nf
+.ft C
+setenv\-safe name value
+.ft P
+.fi
+.UNINDENT
+.UNINDENT
+.sp
+This directive is designed to be pushed by the server to clients, and
+the prepending of \fBOPENVPN_\fP to the environmental variable is a
+safety precaution to prevent a \fBLD_PRELOAD\fP style attack from a
+malicious or compromised server.
+.TP
+.BI \-\-tls\-verify \ cmd
+Run command \fBcmd\fP to verify the X509 name of a pending TLS connection
+that has otherwise passed all other tests of certification (except for
+revocation via \fB\-\-crl\-verify\fP directive; the revocation test occurs
+after the \fB\-\-tls\-verify\fP test).
+.sp
+\fBcmd\fP should return \fB0\fP to allow the TLS handshake to proceed,
+or \fB1\fP to fail.
+.sp
+\fBcmd\fP consists of a path to a script (or executable program), optionally
+followed by arguments. The path and arguments may be single\- or
+double\-quoted and/or escaped using a backslash, and should be separated
+by one or more spaces.
+.sp
+When \fBcmd\fP is executed two arguments are appended after any arguments
+specified in \fBcmd\fP, as follows:
+.INDENT 7.0
+.INDENT 3.5
+.sp
+.nf
+.ft C
+cmd certificate_depth subject
+.ft P
+.fi
+.UNINDENT
+.UNINDENT
+.sp
+These arguments are, respectively, the current certificate depth and the
+X509 subject distinguished name (dn) of the peer.
+.sp
+This feature is useful if the peer you want to trust has a certificate
+which was signed by a certificate authority who also signed many other
+certificates, where you don\(aqt necessarily want to trust all of them, but
+rather be selective about which peer certificate you will accept. This
+feature allows you to write a script which will test the X509 name on a
+certificate and decide whether or not it should be accepted. For a
+simple perl script which will test the common name field on the
+certificate, see the file \fBverify\-cn\fP in the OpenVPN distribution.
+.sp
+See the \fI\%Environmental Variables\fP section below for additional
+parameters passed as environmental variables.
+.TP
+.BI \-\-up \ cmd
+Run command \fBcmd\fP after successful TUN/TAP device open (pre \fB\-\-user\fP
+UID change).
+.sp
+\fBcmd\fP consists of a path to a script (or executable program), optionally
+followed by arguments. The path and arguments may be single\- or
+double\-quoted and/or escaped using a backslash, and should be separated
+by one or more spaces.
+.sp
+The up command is useful for specifying route commands which route IP
+traffic destined for private subnets which exist at the other end of the
+VPN connection into the tunnel.
+.sp
+For \fB\-\-dev tun\fP execute as:
+.INDENT 7.0
+.INDENT 3.5
+.sp
+.nf
+.ft C
+cmd tun_dev tun_mtu link_mtu ifconfig_local_ip ifconfig_remote_ip [init | restart]
+.ft P
+.fi
+.UNINDENT
+.UNINDENT
+.sp
+For \fB\-\-dev tap\fP execute as:
+.INDENT 7.0
+.INDENT 3.5
+.sp
+.nf
+.ft C
+cmd tap_dev tap_mtu link_mtu ifconfig_local_ip ifconfig_netmask [init | restart]
+.ft P
+.fi
+.UNINDENT
+.UNINDENT
+.sp
+See the \fI\%Environmental Variables\fP section below for additional
+parameters passed as environmental variables.
+.sp
+Note that if \fBcmd\fP includes arguments, all OpenVPN\-generated arguments
+will be appended to them to build an argument list with which the
+executable will be called.
+.sp
+Typically, \fBcmd\fP will run a script to add routes to the tunnel.
+.sp
+Normally the up script is called after the TUN/TAP device is opened. In
+this context, the last command line parameter passed to the script will
+be \fIinit.\fP If the \fB\-\-up\-restart\fP option is also used, the up script
+will be called for restarts as well. A restart is considered to be a
+partial reinitialization of OpenVPN where the TUN/TAP instance is
+preserved (the \fB\-\-persist\-tun\fP option will enable such preservation).
+A restart can be generated by a SIGUSR1 signal, a \fB\-\-ping\-restart\fP
+timeout, or a connection reset when the TCP protocol is enabled with the
+\fB\-\-proto\fP option. If a restart occurs, and \fB\-\-up\-restart\fP has been
+specified, the up script will be called with \fIrestart\fP as the last
+parameter.
+.INDENT 7.0
+.TP
+.B \fINOTE:\fP
+On restart, OpenVPN will not pass the full set of environment
+variables to the script. Namely, everything related to routing and
+gateways will not be passed, as nothing needs to be done anyway \- all
+the routing setup is already in place. Additionally, the up\-restart
+script will run with the downgraded UID/GID settings (if configured).
+.UNINDENT
+.sp
+The following standalone example shows how the \fB\-\-up\fP script can be
+called in both an initialization and restart context. (\fINOTE:\fP for
+security reasons, don\(aqt run the following example unless UDP port 9999
+is blocked by your firewall. Also, the example will run indefinitely, so
+you should abort with control\-c).
+.INDENT 7.0
+.INDENT 3.5
+.sp
+.nf
+.ft C
+openvpn \-\-dev tun \-\-port 9999 \-\-verb 4 \-\-ping\-restart 10 \e
+        \-\-up \(aqecho up\(aq \-\-down \(aqecho down\(aq \-\-persist\-tun  \e
+        \-\-up\-restart
+.ft P
+.fi
+.UNINDENT
+.UNINDENT
+.sp
+Note that OpenVPN also provides the \fB\-\-ifconfig\fP option to
+automatically ifconfig the TUN device, eliminating the need to define an
+\fB\-\-up\fP script, unless you also want to configure routes in the
+\fB\-\-up\fP script.
+.sp
+If \fB\-\-ifconfig\fP is also specified, OpenVPN will pass the ifconfig
+local and remote endpoints on the command line to the \fB\-\-up\fP script so
+that they can be used to configure routes such as:
+.INDENT 7.0
+.INDENT 3.5
+.sp
+.nf
+.ft C
+route add \-net 10.0.0.0 netmask 255.255.255.0 gw $5
+.ft P
+.fi
+.UNINDENT
+.UNINDENT
+.TP
+.B \-\-up\-delay
+Delay TUN/TAP open and possible \fB\-\-up\fP script execution until after
+TCP/UDP connection establishment with peer.
+.sp
+In \fB\-\-proto udp\fP mode, this option normally requires the use of
+\fB\-\-ping\fP to allow connection initiation to be sensed in the absence of
+tunnel data, since UDP is a "connectionless" protocol.
+.sp
+On Windows, this option will delay the TAP\-Win32 media state
+transitioning to "connected" until connection establishment, i.e. the
+receipt of the first authenticated packet from the peer.
+.TP
+.B \-\-up\-restart
+Enable the \fB\-\-up\fP and \fB\-\-down\fP scripts to be called for restarts as
+well as initial program start. This option is described more fully above
+in the \fB\-\-up\fP option documentation.
+.UNINDENT
+.SS String Types and Remapping
+.sp
+In certain cases, OpenVPN will perform remapping of characters in
+strings. Essentially, any characters outside the set of permitted
+characters for each string type will be converted to underbar (\(aq_\(aq).
+.INDENT 0.0
+.TP
+.B \fIQ: Why is string remapping necessary?\fP
+It\(aqs an important security feature to prevent the malicious
+coding of strings from untrusted sources to be passed as parameters to
+scripts, saved in the environment, used as a common name, translated to
+a filename, etc.
+.TP
+.B \fIQ: Can string remapping be disabled?\fP
+Yes, by using the \fB\-\-no\-name\-remapping\fP option, however this
+should be considered an advanced option.
+.UNINDENT
+.sp
+Here is a brief rundown of OpenVPN\(aqs current string types and the
+permitted character class for each string:
+.INDENT 0.0
+.TP
+.B \fIX509 Names\fP
+Alphanumeric, underbar (\(aq_\(aq), dash (\(aq\-\(aq), dot (\(aq.\(aq), at
+(\(aq@\(aq), colon (\(aq:\(aq), slash (\(aq/\(aq), and equal (\(aq=\(aq). Alphanumeric is
+defined as a character which will cause the C library isalnum() function
+to return true.
+.TP
+.B \fICommon Names\fP
+Alphanumeric, underbar (\(aq_\(aq), dash (\(aq\-\(aq), dot (\(aq.\(aq), and at (\(aq@\(aq).
+.TP
+.B \fI\-\-auth\-user\-pass username\fP
+Same as Common Name, with one exception:
+starting with OpenVPN 2.0.1, the username is passed to the
+\fBOPENVPN_PLUGIN_AUTH_USER_PASS_VERIFY\fP plugin in its raw form,
+without string remapping.
+.TP
+.B \fI\-\-auth\-user\-pass password\fP
+Any "printable" character except CR or LF. Printable is defined to be
+a character which will cause the C library isprint() function to
+return true.
+.TP
+.B \fI\-\-client\-config\-dir filename as derived from common name or\(gausername\fP
+Alphanumeric, underbar (\(aq_\(aq), dash (\(aq\-\(aq), and dot (\(aq.\(aq) except for "."
+or ".." as standalone strings. As of v2.0.1\-rc6, the at (\(aq@\(aq) character
+has been added as well for compatibility with the common name character
+class.
+.TP
+.B \fIEnvironmental variable names\fP
+Alphanumeric or underbar (\(aq_\(aq).
+.TP
+.B \fIEnvironmental variable values\fP
+Any printable character.
+.UNINDENT
+.sp
+For all cases, characters in a string which are not members of the legal
+character class for that string type will be remapped to underbar
+(\(aq_\(aq).
+.SS Environmental Variables
+.sp
+Once set, a variable is persisted indefinitely until it is reset by a
+new value or a restart,
+.sp
+As of OpenVPN 2.0\-beta12, in server mode, environmental variables set by
+OpenVPN are scoped according to the client objects they are associated
+with, so there should not be any issues with scripts having access to
+stale, previously set variables which refer to different client
+instances.
+.INDENT 0.0
+.TP
+.B \fBbytes_received\fP
+Total number of bytes received from client during VPN session. Set prior
+to execution of the \fB\-\-client\-disconnect\fP script.
+.TP
+.B \fBbytes_sent\fP
+Total number of bytes sent to client during VPN session. Set prior to
+execution of the \fB\-\-client\-disconnect\fP script.
+.TP
+.B \fBclient_connect_config_file\fP
+The path to the configuration file that should be written to by the
+\fB\-\-client\-connect\fP script (optional, if per\-session configuration
+is desired).  This is the same file name as passed via command line
+argument on the call to the \fB\-\-client\-connect\fP script.
+.TP
+.B \fBclient_connect_deferred_file\fP
+This file can be optionally written to in order to to communicate a
+status code of the \fB\-\-client\-connect\fP script or plgin.  Only the
+first character in the file is relevant.  It must be either \fB1\fP
+to indicate normal script execution, \fB0\fP indicates an error (in
+the same way that a non zero exit status does) or \fB2\fP to indicate
+that the script deferred returning the config file.
+.sp
+For deferred (background) handling, the script or plugin MUST write
+\fB2\fP to the file to indicate the deferral and then return with
+exit code \fB0\fP to signal \fBdeferred handler started OK\fP\&.
+.sp
+A background process or similar must then take care of writing the
+configuration to the file indicated by the
+\fBclient_connect_config_file\fP environment variable and when
+finished, write the a \fB1\fP to this file (or \fB0\fP in case of
+an error).
+.sp
+The absence of any character in the file when the script finishes
+executing is interpreted the same as \fB1\fP\&. This allows scripts
+that are not written to support the defer mechanism to be used
+unmodified.
+.TP
+.B \fBcommon_name\fP
+The X509 common name of an authenticated client. Set prior to execution
+of \fB\-\-client\-connect\fP, \fB\-\-client\-disconnect\fP and
+\fB\-\-auth\-user\-pass\-verify\fP scripts.
+.TP
+.B \fBconfig\fP
+Name of first \fB\-\-config\fP file. Set on program initiation and reset on
+SIGHUP.
+.TP
+.B \fBdaemon\fP
+Set to "1" if the \fB\-\-daemon\fP directive is specified, or "0" otherwise.
+Set on program initiation and reset on SIGHUP.
+.TP
+.B \fBdaemon_log_redirect\fP
+Set to "1" if the \fB\-\-log\fP or \fB\-\-log\-append\fP directives are
+specified, or "0" otherwise. Set on program initiation and reset on
+SIGHUP.
+.TP
+.B \fBdev\fP
+The actual name of the TUN/TAP device, including a unit number if it
+exists. Set prior to \fB\-\-up\fP or \fB\-\-down\fP script execution.
+.TP
+.B \fBdev_idx\fP
+On Windows, the device index of the TUN/TAP adapter (to be used in
+netsh.exe calls which sometimes just do not work right with interface
+names). Set prior to \fB\-\-up\fP or \fB\-\-down\fP script execution.
+.TP
+.B \fBforeign_option_{n}\fP
+An option pushed via \fB\-\-push\fP to a client which does not natively
+support it, such as \fB\-\-dhcp\-option\fP on a non\-Windows system, will be
+recorded to this environmental variable sequence prior to \fB\-\-up\fP
+script execution.
+.TP
+.B \fBifconfig_broadcast\fP
+The broadcast address for the virtual ethernet segment which is derived
+from the \fB\-\-ifconfig\fP option when \fB\-\-dev tap\fP is used. Set prior to
+OpenVPN calling the \fBifconfig\fP or \fBnetsh\fP (windows version
+of ifconfig) commands which normally occurs prior to \fB\-\-up\fP script
+execution.
+.TP
+.B \fBifconfig_ipv6_local\fP
+The local VPN endpoint IPv6 address specified in the
+\fB\-\-ifconfig\-ipv6\fP option (first parameter). Set prior to OpenVPN
+calling the \fBifconfig\fP or code:\fInetsh\fP (windows version of
+ifconfig) commands which normally occurs prior to \fB\-\-up\fP script
+execution.
+.TP
+.B \fBifconfig_ipv6_netbits\fP
+The prefix length of the IPv6 network on the VPN interface. Derived
+from the /nnn parameter of the IPv6 address in the \fB\-\-ifconfig\-ipv6\fP
+option (first parameter). Set prior to OpenVPN calling the
+\fBifconfig\fP or \fBnetsh\fP (windows version of ifconfig)
+commands which normally occurs prior to \fB\-\-up\fP script execution.
+.TP
+.B \fBifconfig_ipv6_remote\fP
+The remote VPN endpoint IPv6 address specified in the
+\fB\-\-ifconfig\-ipv6\fP option (second parameter). Set prior to OpenVPN
+calling the \fBifconfig\fP or \fBnetsh\fP (windows version of
+ifconfig) commands which normally occurs prior to \fB\-\-up\fP script
+execution.
+.TP
+.B \fBifconfig_local\fP
+The local VPN endpoint IP address specified in the \fB\-\-ifconfig\fP
+option (first parameter). Set prior to OpenVPN calling the
+\fBifconfig\fP or \fBnetsh\fP (windows version of ifconfig)
+commands which normally occurs prior to \fB\-\-up\fP script execution.
+.TP
+.B \fBifconfig_remote\fP
+The remote VPN endpoint IP address specified in the \fB\-\-ifconfig\fP
+option (second parameter) when \fB\-\-dev tun\fP is used. Set prior to
+OpenVPN calling the \fBifconfig\fP or \fBnetsh\fP (windows version
+of ifconfig) commands which normally occurs prior to \fB\-\-up\fP script
+execution.
+.TP
+.B \fBifconfig_netmask\fP
+The subnet mask of the virtual ethernet segment that is specified as
+the second parameter to \fB\-\-ifconfig\fP when \fB\-\-dev tap\fP is being
+used. Set prior to OpenVPN calling the \fBifconfig\fP or
+\fBnetsh\fP (windows version of ifconfig) commands which normally
+occurs prior to \fB\-\-up\fP script execution.
+.TP
+.B \fBifconfig_pool_local_ip\fP
+The local virtual IP address for the TUN/TAP tunnel taken from an
+\fB\-\-ifconfig\-push\fP directive if specified, or otherwise from the
+ifconfig pool (controlled by the \fB\-\-ifconfig\-pool\fP config file
+directive). Only set for \fB\-\-dev tun\fP tunnels. This option is set on
+the server prior to execution of the \fB\-\-client\-connect\fP and
+\fB\-\-client\-disconnect\fP scripts.
+.TP
+.B \fBifconfig_pool_netmask\fP
+The virtual IP netmask for the TUN/TAP tunnel taken from an
+\fB\-\-ifconfig\-push\fP directive if specified, or otherwise from the
+ifconfig pool (controlled by the \fB\-\-ifconfig\-pool\fP config file
+directive). Only set for \fB\-\-dev tap\fP tunnels. This option is set on
+the server prior to execution of the \fB\-\-client\-connect\fP and
+\fB\-\-client\-disconnect\fP scripts.
+.TP
+.B \fBifconfig_pool_remote_ip\fP
+The remote virtual IP address for the TUN/TAP tunnel taken from an
+\fB\-\-ifconfig\-push\fP directive if specified, or otherwise from the
+ifconfig pool (controlled by the \fB\-\-ifconfig\-pool\fP config file
+directive). This option is set on the server prior to execution of the
+\fB\-\-client\-connect\fP and \fB\-\-client\-disconnect\fP scripts.
+.TP
+.B \fBlink_mtu\fP
+The maximum packet size (not including the IP header) of tunnel data in
+UDP tunnel transport mode. Set prior to \fB\-\-up\fP or \fB\-\-down\fP script
+execution.
+.TP
+.B \fBlocal\fP
+The \fB\-\-local\fP parameter. Set on program initiation and reset on
+SIGHUP.
+.TP
+.B \fBlocal_port\fP
+The local port number or name, specified by \fB\-\-port\fP or \fB\-\-lport\fP\&.
+Set on program initiation and reset on SIGHUP.
+.TP
+.B \fBpassword\fP
+The password provided by a connecting client. Set prior to
+\fB\-\-auth\-user\-pass\-verify\fP script execution only when the \fBvia\-env\fP
+modifier is specified, and deleted from the environment after the script
+returns.
+.TP
+.B \fBproto\fP
+The \fB\-\-proto\fP parameter. Set on program initiation and reset on
+SIGHUP.
+.TP
+.B \fBremote_{n}\fP
+The \fB\-\-remote\fP parameter. Set on program initiation and reset on
+SIGHUP.
+.TP
+.B \fBremote_port_{n}\fP
+The remote port number, specified by \fB\-\-port\fP or \fB\-\-rport\fP\&. Set on
+program initiation and reset on SIGHUP.
+.TP
+.B \fBroute_net_gateway\fP
+The pre\-existing default IP gateway in the system routing table. Set
+prior to \fB\-\-up\fP script execution.
+.TP
+.B \fBroute_vpn_gateway\fP
+The default gateway used by \fB\-\-route\fP options, as specified in either
+the \fB\-\-route\-gateway\fP option or the second parameter to
+\fB\-\-ifconfig\fP when \fB\-\-dev tun\fP is specified. Set prior to \fB\-\-up\fP
+script execution.
+.TP
+.B \fBroute_{parm}_{n}\fP
+A set of variables which define each route to be added, and are set
+prior to \fB\-\-up\fP script execution.
+.sp
+\fBparm\fP will be one of \fBnetwork\fP, \fBnetmask"\fP,
+\fBgateway\fP, or \fBmetric\fP\&.
+.sp
+\fBn\fP is the OpenVPN route number, starting from 1.
+.sp
+If the network or gateway are resolvable DNS names, their IP address
+translations will be recorded rather than their names as denoted on the
+command line or configuration file.
+.TP
+.B \fBroute_ipv6_{parm}_{n}\fP
+A set of variables which define each IPv6 route to be added, and are
+set prior to \fB\-\-up\fP script execution.
+.sp
+\fBparm\fP will be one of \fBnetwork\fP or \fBgateway\fP
+(\fBnetmask\fP is contained as \fB/nnn\fP in the
+\fBroute_ipv6_network_{n}\fP, unlike IPv4 where it is passed in a
+separate environment variable).
+.sp
+\fBn\fP is the OpenVPN route number, starting from 1.
+.sp
+If the network or gateway are resolvable DNS names, their IP address
+translations will be recorded rather than their names as denoted on the
+command line or configuration file.
+.TP
+.B \fBpeer_cert\fP
+Temporary file name containing the client certificate upon connection.
+Useful in conjunction with \fB\-\-tls\-verify\fP\&.
+.TP
+.B \fBscript_context\fP
+Set to "init" or "restart" prior to up/down script execution. For more
+information, see documentation for \fB\-\-up\fP\&.
+.TP
+.B \fBscript_type\fP
+Prior to execution of any script, this variable is set to the type of
+script being run. It can be one of the following: \fBup\fP,
+\fBdown\fP, \fBipchange\fP, \fBroute\-up\fP, \fBtls\-verify\fP,
+\fBauth\-user\-pass\-verify\fP, \fBclient\-connect\fP,
+\fBclient\-disconnect\fP or \fBlearn\-address\fP\&. Set prior to
+execution of any script.
+.TP
+.B \fBsignal\fP
+The reason for exit or restart. Can be one of \fBsigusr1\fP,
+\fBsighup\fP, \fBsigterm\fP, \fBsigint\fP, \fBinactive\fP
+(controlled by \fB\-\-inactive\fP option), \fBping\-exit\fP (controlled
+by \fB\-\-ping\-exit\fP option), \fBping\-restart\fP (controlled by
+\fB\-\-ping\-restart\fP option), \fBconnection\-reset\fP (triggered on TCP
+connection reset), \fBerror\fP or \fBunknown\fP (unknown signal).
+This variable is set just prior to down script execution.
+.TP
+.B \fBtime_ascii\fP
+Client connection timestamp, formatted as a human\-readable time string.
+Set prior to execution of the \fB\-\-client\-connect\fP script.
+.TP
+.B \fBtime_duration\fP
+The duration (in seconds) of the client session which is now
+disconnecting. Set prior to execution of the \fB\-\-client\-disconnect\fP
+script.
+.TP
+.B \fBtime_unix\fP
+Client connection timestamp, formatted as a unix integer date/time
+value. Set prior to execution of the \fB\-\-client\-connect\fP script.
+.TP
+.B \fBtls_digest_{n}\fP / \fBtls_digest_sha256_{n}\fP
+Contains the certificate SHA1 / SHA256 fingerprint, where \fBn\fP is the
+verification level. Only set for TLS connections. Set prior to execution
+of \fB\-\-tls\-verify\fP script.
+.TP
+.B \fBtls_id_{n}\fP
+A series of certificate fields from the remote peer, where \fBn\fP is the
+verification level. Only set for TLS connections. Set prior to execution
+of \fB\-\-tls\-verify\fP script.
+.TP
+.B \fBtls_serial_{n}\fP
+The serial number of the certificate from the remote peer, where \fBn\fP
+is the verification level. Only set for TLS connections. Set prior to
+execution of \fB\-\-tls\-verify\fP script. This is in the form of a decimal
+string like "933971680", which is suitable for doing serial\-based OCSP
+queries (with OpenSSL, do not prepend "0x" to the string) If something
+goes wrong while reading the value from the certificate it will be an
+empty string, so your code should check that. See the
+\fBcontrib/OCSP_check/OCSP_check.sh\fP script for an example.
+.TP
+.B \fBtls_serial_hex_{n}\fP
+Like \fBtls_serial_{n}\fP, but in hex form (e.g.
+\fB12:34:56:78:9A\fP).
+.TP
+.B \fBtun_mtu\fP
+The MTU of the TUN/TAP device. Set prior to \fB\-\-up\fP or \fB\-\-down\fP
+script execution.
+.TP
+.B \fBtrusted_ip\fP / \fBtrusted_ip6\fP)
+Actual IP address of connecting client or peer which has been
+authenticated. Set prior to execution of \fB\-\-ipchange\fP,
+\fB\-\-client\-connect\fP and \fB\-\-client\-disconnect\fP scripts. If using ipv6
+endpoints (udp6, tcp6), \fBtrusted_ip6\fP will be set instead.
+.TP
+.B \fBtrusted_port\fP
+Actual port number of connecting client or peer which has been
+authenticated. Set prior to execution of \fB\-\-ipchange\fP,
+\fB\-\-client\-connect\fP and \fB\-\-client\-disconnect\fP scripts.
+.TP
+.B \fBuntrusted_ip\fP / \fBuntrusted_ip6\fP
+Actual IP address of connecting client or peer which has not been
+authenticated yet. Sometimes used to \fInmap\fP the connecting host in a
+\fB\-\-tls\-verify\fP script to ensure it is firewalled properly. Set prior
+to execution of \fB\-\-tls\-verify\fP and \fB\-\-auth\-user\-pass\-verify\fP
+scripts. If using ipv6 endpoints (udp6, tcp6), \fBuntrusted_ip6\fP
+will be set instead.
+.TP
+.B \fBuntrusted_port\fP
+Actual port number of connecting client or peer which has not been
+authenticated yet. Set prior to execution of \fB\-\-tls\-verify\fP and
+\fB\-\-auth\-user\-pass\-verify\fP scripts.
+.TP
+.B \fBusername\fP
+The username provided by a connecting client. Set prior to
+\fB\-\-auth\-user\-pass\-verify\fP script execution only when the
+\fBvia\-env\fP modifier is specified.
+.TP
+.B \fBX509_{n}_{subject_field}\fP
+An X509 subject field from the remote peer certificate, where \fBn\fP is
+the verification level. Only set for TLS connections. Set prior to
+execution of \fB\-\-tls\-verify\fP script. This variable is similar to
+\fBtls_id_{n}\fP except the component X509 subject fields are broken
+out, and no string remapping occurs on these field values (except for
+remapping of control characters to "\fB_\fP"). For example, the
+following variables would be set on the OpenVPN server using the sample
+client certificate in sample\-keys (client.crt). Note that the
+verification level is 0 for the client certificate and 1 for the CA
+certificate.
+.INDENT 7.0
+.INDENT 3.5
+.sp
+.nf
+.ft C
+X509_0_emailAddress=me@myhost.mydomain
+X509_0_CN=Test\-Client
+X509_0_O=OpenVPN\-TEST
+X509_0_ST=NA
+X509_0_C=KG
+X509_1_emailAddress=me@myhost.mydomain
+X509_1_O=OpenVPN\-TEST
+X509_1_L=BISHKEK
+X509_1_ST=NA
+X509_1_C=KG
+.ft P
+.fi
+.UNINDENT
+.UNINDENT
+.UNINDENT
+.SS Management Interface Options
+.sp
+OpenVPN provides a feature rich socket based management interface for both
+server and client mode operations.
+.INDENT 0.0
+.TP
+.BI \-\-management \ args
+Enable a management server on a \fBsocket\-name\fP Unix socket on those
+platforms supporting it, or on a designated TCP port.
+.sp
+Valid syntaxes:
+.INDENT 7.0
+.INDENT 3.5
+.sp
+.nf
+.ft C
+management socket\-name unix          #
+management socket\-name unix pw\-file  # (recommended)
+management IP port                   # (INSECURE)
+management IP port pw\-file           #
+.ft P
+.fi
+.UNINDENT
+.UNINDENT
+.sp
+\fBpw\-file\fP, if specified, is a password file where the password must
+be on first line. Instead of a filename it can use the keyword stdin
+which will prompt the user for a password to use when OpenVPN is
+starting.
+.sp
+For unix sockets, the default behaviour is to create a unix domain
+socket that may be connected to by any process. Use the
+\fB\-\-management\-client\-user\fP and \fB\-\-management\-client\-group\fP
+directives to restrict access.
+.sp
+The management interface provides a special mode where the TCP
+management link can operate over the tunnel itself. To enable this mode,
+set IP to \fBtunnel\fP\&. Tunnel mode will cause the management interface to
+listen for a TCP connection on the local VPN address of the TUN/TAP
+interface.
+.sp
+\fB*BEWARE*\fP of enabling the management interface over TCP. In these cases
+you should \fIALWAYS\fP make use of \fBpw\-file\fP to password protect the
+management interface. Any user who can connect to this TCP \fBIP:port\fP
+will be able to manage and control (and interfere with) the OpenVPN
+process. It is also strongly recommended to set IP to 127.0.0.1
+(localhost) to restrict accessibility of the management server to local
+clients.
+.sp
+While the management port is designed for programmatic control of
+OpenVPN by other applications, it is possible to telnet to the port,
+using a telnet client in "raw" mode. Once connected, type \fBhelp\fP
+for a list of commands.
+.sp
+For detailed documentation on the management interface, see the
+\fImanagement\-notes.txt\fP file in the management folder of the OpenVPN
+source distribution.
+.TP
+.B \-\-management\-client
+Management interface will connect as a TCP/unix domain client to
+\fBIP:port\fP specified by \fB\-\-management\fP rather than listen as a TCP
+server or on a unix domain socket.
+.sp
+If the client connection fails to connect or is disconnected, a SIGTERM
+signal will be generated causing OpenVPN to quit.
+.TP
+.B \-\-management\-client\-auth
+Gives management interface client the responsibility to authenticate
+clients after their client certificate has been verified. See
+\fBmanagement\-notes.txt\fP in OpenVPN distribution for detailed notes.
+.TP
+.BI \-\-management\-client\-group \ g
+When the management interface is listening on a unix domain socket, only
+allow connections from group \fBg\fP\&.
+.TP
+.B \-\-management\-client\-pf
+Management interface clients must specify a packet filter file for each
+connecting client. See \fBmanagement\-notes.txt\fP in OpenVPN
+distribution for detailed notes.
+.TP
+.BI \-\-management\-client\-user \ u
+When the management interface is listening on a unix domain socket, only
+allow connections from user \fBu\fP\&.
+.TP
+.BI \-\-management\-external\-cert \ certificate\-hint
+Allows usage for external certificate instead of \fB\-\-cert\fP option
+(client\-only). \fBcertificate\-hint\fP is an arbitrary string which is
+passed to a management interface client as an argument of
+\fINEED\-CERTIFICATE\fP notification. Requires \fB\-\-management\-external\-key\fP\&.
+.TP
+.BI \-\-management\-external\-key \ args
+Allows usage for external private key file instead of \fB\-\-key\fP option
+(client\-only).
+.sp
+Valid syntaxes:
+.INDENT 7.0
+.INDENT 3.5
+.sp
+.nf
+.ft C
+management\-external\-key
+management\-external\-key nopadding
+management\-external\-key pkcs1
+management\-external\-key nopadding pkcs1
+.ft P
+.fi
+.UNINDENT
+.UNINDENT
+.sp
+The optional parameters \fBnopadding\fP and \fBpkcs1\fP signal
+support for different padding algorithms. See
+\fBdoc/mangement\-notes.txt\fP for a complete description of this
+feature.
+.TP
+.B \-\-management\-forget\-disconnect
+Make OpenVPN forget passwords when management session disconnects.
+.sp
+This directive does not affect the \fB\-\-http\-proxy\fP username/password.
+It is always cached.
+.TP
+.B \-\-management\-hold
+Start OpenVPN in a hibernating state, until a client of the management
+interface explicitly starts it with the \fBhold release\fP command.
+.TP
+.BI \-\-management\-log\-cache \ n
+Cache the most recent \fBn\fP lines of log file history for usage by the
+management channel.
+.TP
+.B \-\-management\-query\-passwords
+Query management channel for private key password and
+\fB\-\-auth\-user\-pass\fP username/password. Only query the management
+channel for inputs which ordinarily would have been queried from the
+console.
+.TP
+.B \-\-management\-query\-proxy
+Query management channel for proxy server information for a specific
+\fB\-\-remote\fP (client\-only).
+.TP
+.B \-\-management\-query\-remote
+Allow management interface to override \fB\-\-remote\fP directives
+(client\-only).
+.TP
+.B \-\-management\-signal
+Send SIGUSR1 signal to OpenVPN if management session disconnects. This
+is useful when you wish to disconnect an OpenVPN session on user logoff.
+For \fB\-\-management\-client\fP this option is not needed since a disconnect
+will always generate a \fBSIGTERM\fP\&.
+.TP
+.B \-\-management\-up\-down
+Report tunnel up/down events to management interface.
+.UNINDENT
+.SS Plug\-in Interface Options
+.sp
+OpenVPN can be extended by loading external plug\-in modules at runtime.  These
+plug\-ins must be prebuilt and adhere to the OpenVPN Plug\-In API.
+.INDENT 0.0
+.TP
+.BI \-\-plugin \ args
+Loads an OpenVPN plug\-in module.
+.sp
+Valid syntax:
+.INDENT 7.0
+.INDENT 3.5
+.sp
+.nf
+.ft C
+plugin module\-name
+plugin module\-name "arguments"
+.ft P
+.fi
+.UNINDENT
+.UNINDENT
+.sp
+The \fBmodule\-name\fP needs to be the first
+argument, indicating the plug\-in to load.  The second argument is an
+optional init string which will be passed directly to the plug\-in.
+If the init consists of multiple arguments it must be enclosed in
+double\-quotes (").  Multiple plugin modules may be loaded into one
+OpenVPN process.
+.sp
+The \fBmodule\-name\fP argument can be just a filename or a filename
+with a relative or absolute path. The format of the filename and path
+defines if the plug\-in will be loaded from a default plug\-in directory
+or outside this directory.
+.INDENT 7.0
+.INDENT 3.5
+.sp
+.nf
+.ft C
+\-\-plugin path         Effective directory used
+===================== =============================
+ myplug.so            DEFAULT_DIR/myplug.so
+ subdir/myplug.so     DEFAULT_DIR/subdir/myplug.so
+ ./subdir/myplug.so   CWD/subdir/myplug.so
+ /usr/lib/my/plug.so  /usr/lib/my/plug.so
+.ft P
+.fi
+.UNINDENT
+.UNINDENT
+.sp
+\fBDEFAULT_DIR\fP is replaced by the default plug\-in directory, which is
+configured at the build time of OpenVPN. \fBCWD\fP is the current directory
+where OpenVPN was started or the directory OpenVPN have switched into
+via the \fB\-\-cd\fP option before the \fB\-\-plugin\fP option.
+.sp
+For more information and examples on how to build OpenVPN plug\-in
+modules, see the README file in the \fBplugin\fP folder of the OpenVPN
+source distribution.
+.sp
+If you are using an RPM install of OpenVPN, see
+\fB/usr/share/openvpn/plugin\fP\&. The documentation is in \fBdoc\fP and
+the actual plugin modules are in \fBlib\fP\&.
+.sp
+Multiple plugin modules can be cascaded, and modules can be used in
+tandem with scripts. The modules will be called by OpenVPN in the order
+that they are declared in the config file. If both a plugin and script
+are configured for the same callback, the script will be called last. If
+the return code of the module/script controls an authentication function
+(such as tls\-verify, auth\-user\-pass\-verify, or client\-connect), then
+every module and script must return success (\fB0\fP) in order for the
+connection to be authenticated.
+.UNINDENT
+.SS Windows\-Specific Options
+.INDENT 0.0
+.TP
+.BI \-\-allow\-nonadmin \ TAP\-adapter
+(Standalone) Set \fBTAP\-adapter\fP to allow access from non\-administrative
+accounts. If \fBTAP\-adapter\fP is omitted, all TAP adapters on the system
+will be configured to allow non\-admin access. The non\-admin access
+setting will only persist for the length of time that the TAP\-Win32
+device object and driver remain loaded, and will need to be re\-enabled
+after a reboot, or if the driver is unloaded and reloaded. This
+directive can only be used by an administrator.
+.TP
+.B \-\-block\-outside\-dns
+Block DNS servers on other network adapters to prevent DNS leaks. This
+option prevents any application from accessing TCP or UDP port 53 except
+one inside the tunnel. It uses Windows Filtering Platform (WFP) and
+works on Windows Vista or later.
+.sp
+This option is considered unknown on non\-Windows platforms and
+unsupported on Windows XP, resulting in fatal error. You may want to use
+\fB\-\-setenv opt\fP or \fB\-\-ignore\-unknown\-option\fP (not suitable for
+Windows XP) to ignore said error. Note that pushing unknown options from
+server does not trigger fatal errors.
+.TP
+.BI \-\-cryptoapicert \ select\-string
+\fI(Windows/OpenSSL Only)\fP Load the certificate and private key from the
+Windows Certificate System Store.
+.sp
+Use this option instead of \fB\-\-cert\fP and \fB\-\-key\fP\&.
+.sp
+This makes it possible to use any smart card, supported by Windows, but
+also any kind of certificate, residing in the Cert Store, where you have
+access to the private key. This option has been tested with a couple of
+different smart cards (GemSAFE, Cryptoflex, and Swedish Post Office eID)
+on the client side, and also an imported PKCS12 software certificate on
+the server side.
+.sp
+To select a certificate, based on a substring search in the
+certificate\(aqs subject:
+.INDENT 7.0
+.INDENT 3.5
+.sp
+.nf
+.ft C
+cryptoapicert "SUBJ:Peter Runestig"
+.ft P
+.fi
+.UNINDENT
+.UNINDENT
+.sp
+To select a certificate, based on certificate\(aqs thumbprint:
+.INDENT 7.0
+.INDENT 3.5
+.sp
+.nf
+.ft C
+cryptoapicert "THUMB:f6 49 24 41 01 b4 ..."
+.ft P
+.fi
+.UNINDENT
+.UNINDENT
+.sp
+The thumbprint hex string can easily be copy\-and\-pasted from the Windows
+Certificate Store GUI.
+.TP
+.B \-\-dhcp\-release
+Ask Windows to release the TAP adapter lease on shutdown. This option
+has no effect now, as it is enabled by default starting with
+OpenVPN 2.4.1.
+.TP
+.B \-\-dhcp\-renew
+Ask Windows to renew the TAP adapter lease on startup. This option is
+normally unnecessary, as Windows automatically triggers a DHCP
+renegotiation on the TAP adapter when it comes up, however if you set
+the TAP\-Win32 adapter Media Status property to "Always Connected", you
+may need this flag.
+.TP
+.BI \-\-ip\-win32 \ method
+When using \fB\-\-ifconfig\fP on Windows, set the TAP\-Win32 adapter IP
+address and netmask using \fBmethod\fP\&. Don\(aqt use this option unless you
+are also using \fB\-\-ifconfig\fP\&.
+.INDENT 7.0
+.TP
+.B \fBmanual\fP
+Don\(aqt set the IP address or netmask automatically. Instead
+output a message to the console telling the user to configure the
+adapter manually and indicating the IP/netmask which OpenVPN
+expects the adapter to be set to.
+.TP
+.B \fBdynamic [offset] [lease\-time]\fP
+Automatically set the IP address and netmask by replying to DHCP
+query messages generated by the kernel.  This mode is probably the
+"cleanest" solution for setting the TCP/IP properties since it
+uses the well\-known DHCP protocol. There are, however, two
+prerequisites for using this mode:
+.INDENT 7.0
+.IP 1. 3
+The TCP/IP properties for the TAP\-Win32 adapter must be set
+to "Obtain an IP address automatically", and
+.IP 2. 3
+OpenVPN needs to claim an IP address in the subnet for use
+as the virtual DHCP server address.
+.UNINDENT
+.sp
+By default in \fB\-\-dev tap\fP mode, OpenVPN will take the normally
+unused first address in the subnet. For example, if your subnet is
+\fB192.168.4.0 netmask 255.255.255.0\fP, then OpenVPN will take
+the IP address \fB192.168.4.0\fP to use as the virtual DHCP
+server address.  In \fB\-\-dev tun\fP mode, OpenVPN will cause the DHCP
+server to masquerade as if it were coming from the remote endpoint.
+.sp
+The optional offset parameter is an integer which is > \fB\-256\fP
+and < \fB256\fP and which defaults to \-1. If offset is positive,
+the DHCP server will masquerade as the IP address at network
+address + offset. If offset is negative, the DHCP server will
+masquerade as the IP address at broadcast address + offset.
+.sp
+The Windows \fBipconfig /all\fP command can be used to show what
+Windows thinks the DHCP server address is. OpenVPN will "claim"
+this address, so make sure to use a free address. Having said that,
+different OpenVPN instantiations, including different ends of
+the same connection, can share the same virtual DHCP server
+address.
+.sp
+The \fBlease\-time\fP parameter controls the lease time of the DHCP
+assignment given to the TAP\-Win32 adapter, and is denoted in
+seconds. Normally a very long lease time is preferred because it
+prevents routes involving the TAP\-Win32 adapter from being lost
+when the system goes to sleep. The default lease time is one year.
+.TP
+.B \fBnetsh\fP
+Automatically set the IP address and netmask using the Windows
+command\-line "netsh" command. This method appears to work correctly
+on Windows XP but not Windows 2000.
+.TP
+.B \fBipapi\fP
+Automatically set the IP address and netmask using the Windows IP
+Helper API. This approach does not have ideal semantics, though
+testing has indicated that it works okay in practice. If you use
+this option, it is best to leave the TCP/IP properties for the
+TAP\-Win32 adapter in their default state, i.e. "Obtain an IP
+address automatically."
+.TP
+.B \fBadaptive\fP (Default)
+Try \fBdynamic\fP method initially and fail over to \fBnetsh\fP
+if the DHCP negotiation with the TAP\-Win32 adapter does not succeed
+in 20 seconds. Such failures have been known to occur when certain
+third\-party firewall packages installed on the client machine block
+the DHCP negotiation used by the TAP\-Win32 adapter. Note that if
+the \fBnetsh\fP failover occurs, the TAP\-Win32 adapter TCP/IP
+properties will be reset from DHCP to static, and this will cause
+future OpenVPN startups using the \fBadaptive\fP mode to use
+\fBnetsh\fP immediately, rather than trying \fBdynamic\fP first.
+.sp
+To "unstick" the \fBadaptive\fP mode from using \fBnetsh\fP,
+run OpenVPN at least once using the \fBdynamic\fP mode to restore
+the TAP\-Win32 adapter TCP/IP properties to a DHCP configuration.
+.UNINDENT
+.TP
+.B \-\-pause\-exit
+Put up a "press any key to continue" message on the console prior to
+OpenVPN program exit. This option is automatically used by the Windows
+explorer when OpenVPN is run on a configuration file using the
+right\-click explorer menu.
+.TP
+.B \-\-register\-dns
+Run \fBipconfig /flushdns\fP and \fBipconfig /registerdns\fP on
+connection initiation. This is known to kick Windows into recognizing
+pushed DNS servers.
+.TP
+.BI \-\-route\-method \ m
+Which method \fBm\fP to use for adding routes on Windows?
+.INDENT 7.0
+.TP
+.B \fBadaptive\fP (default)
+Try IP helper API first. If that fails, fall back to the route.exe
+shell command.
+.TP
+.B \fBipapi\fP
+Use IP helper API.
+.TP
+.B \fBexe\fP
+Call the route.exe shell command.
+.UNINDENT
+.TP
+.BI \-\-service \ args
+Should be used when OpenVPN is being automatically executed by another
+program in such a context that no interaction with the user via display
+or keyboard is possible.
+.sp
+Valid syntax:
+.INDENT 7.0
+.INDENT 3.5
+.sp
+.nf
+.ft C
+service exit\-event [0|1]
+.ft P
+.fi
+.UNINDENT
+.UNINDENT
+.sp
+In general, end\-users should never need to explicitly use this option,
+as it is automatically added by the OpenVPN service wrapper when a given
+OpenVPN configuration is being run as a service.
+.sp
+\fBexit\-event\fP is the name of a Windows global event object, and OpenVPN
+will continuously monitor the state of this event object and exit when
+it becomes signaled.
+.sp
+The second parameter indicates the initial state of \fBexit\-event\fP and
+normally defaults to 0.
+.sp
+Multiple OpenVPN processes can be simultaneously executed with the same
+\fBexit\-event\fP parameter. In any case, the controlling process can
+signal \fBexit\-event\fP, causing all such OpenVPN processes to exit.
+.sp
+When executing an OpenVPN process using the \fB\-\-service\fP directive,
+OpenVPN will probably not have a console window to output status/error
+messages, therefore it is useful to use \fB\-\-log\fP or \fB\-\-log\-append\fP to
+write these messages to a file.
+.TP
+.B \-\-show\-adapters
+(Standalone) Show available TAP\-Win32 adapters which can be selected
+using the \fB\-\-dev\-node\fP option. On non\-Windows systems, the
+\fBifconfig\fP(8) command provides similar functionality.
+.TP
+.B \-\-show\-net
+(Standalone) Show OpenVPN\(aqs view of the system routing table and network
+adapter list.
+.TP
+.B \-\-show\-net\-up
+Output OpenVPN\(aqs view of the system routing table and network adapter
+list to the syslog or log file after the TUN/TAP adapter has been
+brought up and any routes have been added.
+.TP
+.B \-\-show\-valid\-subnets
+(Standalone) Show valid subnets for \fB\-\-dev tun\fP emulation. Since the
+TAP\-Win32 driver exports an ethernet interface to Windows, and since TUN
+devices are point\-to\-point in nature, it is necessary for the TAP\-Win32
+driver to impose certain constraints on TUN endpoint address selection.
+.sp
+Namely, the point\-to\-point endpoints used in TUN device emulation must
+be the middle two addresses of a /30 subnet (netmask 255.255.255.252).
+.TP
+.BI \-\-tap\-sleep \ n
+Cause OpenVPN to sleep for \fBn\fP seconds immediately after the TAP\-Win32
+adapter state is set to "connected".
+.sp
+This option is intended to be used to troubleshoot problems with the
+\fB\-\-ifconfig\fP and \fB\-\-ip\-win32\fP options, and is used to give the
+TAP\-Win32 adapter time to come up before Windows IP Helper API
+operations are applied to it.
+.TP
+.BI \-\-win\-sys \ path
+Set the Windows system directory pathname to use when looking for system
+executables such as \fBroute.exe\fP and \fBnetsh.exe\fP\&. By default, if this
+directive is not specified, OpenVPN will use the SystemRoot environment
+variable.
+.sp
+This option has changed behaviour since OpenVPN 2.3. Earlier you had to
+define \fB\-\-win\-sys env\fP to use the SystemRoot environment variable,
+otherwise it defaulted to \fBC:\e\eWINDOWS\fP\&. It is not needed to use
+the \fBenv\fP keyword any more, and it will just be ignored. A warning is
+logged when this is found in the configuration file.
+.TP
+.BI \-\-windows\-driver \ drv
+Specifies which tun driver to use. Values are \fBtap\-windows6\fP
+(default) and \fBwintun\fP\&.  This is a Windows\-only option.
+\fBwintun\fP" requires \fB\-\-dev tun\fP and the OpenVPN process to run
+elevated, or be invoked using the Interactive Service.
+.UNINDENT
+.SS Standalone Debug Options
+.INDENT 0.0
+.TP
+.BI \-\-show\-gateway \ args
+(Standalone) Show current IPv4 and IPv6 default gateway and interface
+towards the gateway (if the protocol in question is enabled).
+.sp
+Valid syntax:
+.INDENT 7.0
+.INDENT 3.5
+.sp
+.nf
+.ft C
+\-\-show\-gateway
+\-\-show\-gateway IPv6\-target
+.ft P
+.fi
+.UNINDENT
+.UNINDENT
+.sp
+If an IPv6 target address is passed as argument, the IPv6 route for this
+host is reported.
+.UNINDENT
+.SS Advanced Expert Options
+.sp
+These are options only required when special tweaking is needed, often
+used when debugging or testing out special usage scenarios.
+.INDENT 0.0
+.TP
+.BI \-\-hash\-size \ args
+Set the size of the real address hash table to \fBr\fP and the virtual
+address table to \fBv\fP\&.
+.sp
+Valid syntax:
+.INDENT 7.0
+.INDENT 3.5
+.sp
+.nf
+.ft C
+hash\-size r v
+.ft P
+.fi
+.UNINDENT
+.UNINDENT
+.sp
+By default, both tables are sized at 256 buckets.
+.TP
+.BI \-\-bcast\-buffers \ n
+Allocate \fBn\fP buffers for broadcast datagrams (default \fB256\fP).
+.TP
+.B \-\-persist\-local\-ip
+Preserve initially resolved local IP address and port number across
+\fBSIGUSR1\fP or \fB\-\-ping\-restart\fP restarts.
+.TP
+.B \-\-persist\-remote\-ip
+Preserve most recently authenticated remote IP address and port number
+across \fBSIGUSR1\fP or \fB\-\-ping\-restart\fP restarts.
+.TP
+.BI \-\-prng \ args
+\fI(Advanced)\fP Change the PRNG (Pseudo\-random number generator) parameters
+.sp
+Valid syntaxes:
+.INDENT 7.0
+.INDENT 3.5
+.sp
+.nf
+.ft C
+prng alg
+prng alg nsl
+.ft P
+.fi
+.UNINDENT
+.UNINDENT
+.sp
+Changes the PRNG to use digest algorithm \fBalg\fP (default \fBsha1\fP),
+and set \fBnsl\fP (default \fB16\fP) to the size in bytes of the nonce
+secret length (between 16 and 64).
+.sp
+Set \fBalg\fP to \fBnone\fP to disable the PRNG and use the OpenSSL
+RAND_bytes function instead for all of OpenVPN\(aqs pseudo\-random number
+needs.
+.TP
+.BI \-\-rcvbuf \ size
+Set the TCP/UDP socket receive buffer size. Defaults to operating system
+default.
+.TP
+.BI \-\-shaper \ n
+Limit bandwidth of outgoing tunnel data to \fBn\fP bytes per second on the
+TCP/UDP port. Note that this will only work if mode is set to
+\fBp2p\fP\&.  If you want to limit the bandwidth in both directions, use
+this option on both peers.
+.sp
+OpenVPN uses the following algorithm to implement traffic shaping: Given
+a shaper rate of \fBn\fP bytes per second, after a datagram write of \fBb\fP
+bytes is queued on the TCP/UDP port, wait a minimum of \fB(b / n)\fP
+seconds before queuing the next write.
+.sp
+It should be noted that OpenVPN supports multiple tunnels between the
+same two peers, allowing you to construct full\-speed and reduced
+bandwidth tunnels at the same time, routing low\-priority data such as
+off\-site backups over the reduced bandwidth tunnel, and other data over
+the full\-speed tunnel.
+.sp
+Also note that for low bandwidth tunnels (under 1000 bytes per second),
+you should probably use lower MTU values as well (see above), otherwise
+the packet latency will grow so large as to trigger timeouts in the TLS
+layer and TCP connections running over the tunnel.
+.sp
+OpenVPN allows \fBn\fP to be between 100 bytes/sec and 100 Mbytes/sec.
+.TP
+.BI \-\-sndbuf \ size
+Set the TCP/UDP socket send buffer size. Defaults to operating system
+default.
+.TP
+.BI \-\-tcp\-queue\-limit \ n
+Maximum number of output packets queued before TCP (default \fB64\fP).
+.sp
+When OpenVPN is tunneling data from a TUN/TAP device to a remote client
+over a TCP connection, it is possible that the TUN/TAP device might
+produce data at a faster rate than the TCP connection can support. When
+the number of output packets queued before sending to the TCP socket
+reaches this limit for a given client connection, OpenVPN will start to
+drop outgoing packets directed at this client.
+.TP
+.BI \-\-txqueuelen \ n
+\fI(Linux only)\fP Set the TX queue length on the TUN/TAP interface.
+Currently defaults to operating system default.
+.UNINDENT
+.SH UNSUPPORTED OPTIONS
+.sp
+Options listed in this section have been removed from OpenVPN and are no
+longer supported
+.INDENT 0.0
+.TP
+.B \-\-client\-cert\-not\-required
+Removed in OpenVPN 2.5.  This should be replaxed with
+\fB\-\-verify\-client\-cert none\fP\&.
+.TP
+.B \-\-ifconfig\-pool\-linear
+Removed in OpenVPN 2.5.  This should be replaced with \fB\-\-topology p2p\fP\&.
+.TP
+.B \-\-key\-method
+Removed in OpenVPN 2.5.  This option should not be used, as using the old
+\fBkey\-method\fP weakens the VPN tunnel security.  The old \fBkey\-method\fP
+was also only needed when the remote side was older than OpenVPN 2.0.
+.TP
+.B \-\-no\-iv
+Removed in OpenVPN 2.5.  This option should not be used as it weakens the
+VPN tunnel security.  This has been a NOOP option since OpenVPN 2.4.
+.TP
+.B \-\-no\-replay
+Removed in OpenVPN 2.5.  This option should not be used as it weakens the
+VPN tunnel security.
+.TP
+.B \-\-ns\-cert\-type
+Removed in OpenVPN 2.5.  The \fBnsCertType\fP field is no longer supported
+in recent SSL/TLS libraries.  If your certificates does not include \fIkey
+usage\fP and \fIextended key usage\fP fields, they must be upgraded and the
+\fB\-\-remote\-cert\-tls\fP option should be used instead.
+.UNINDENT
+.SH CONNECTION PROFILES
+.sp
+Client configuration files may contain multiple remote servers which
+it will attempt to connect against.  But there are some configuration
+options which are related to specific \fB\-\-remote\fP options.  For these
+use cases, connection profiles are the solution.
+.sp
+By enacpulating the \fB\-\-remote\fP option and related options within
+\fB<connection>\fP and \fB</connection>\fP, these options are handled as a
+group.
+.sp
+An OpenVPN client will try each connection profile sequentially until it
+achieves a successful connection.
+.sp
+\fB\-\-remote\-random\fP can be used to initially "scramble" the connection
+list.
+.sp
+Here is an example of connection profile usage:
+.INDENT 0.0
+.INDENT 3.5
+.sp
+.nf
+.ft C
+client
+dev tun
+
+<connection>
+remote 198.19.34.56 1194 udp
+</connection>
+
+<connection>
+remote 198.19.34.56 443 tcp
+</connection>
+
+<connection>
+remote 198.19.34.56 443 tcp
+http\-proxy 192.168.0.8 8080
+</connection>
+
+<connection>
+remote 198.19.36.99 443 tcp
+http\-proxy 192.168.0.8 8080
+</connection>
+
+persist\-key
+persist\-tun
+pkcs12 client.p12
+remote\-cert\-tls server
+verb 3
+.ft P
+.fi
+.UNINDENT
+.UNINDENT
+.sp
+First we try to connect to a server at 198.19.34.56:1194 using UDP. If
+that fails, we then try to connect to 198.19.34.56:443 using TCP. If
+that also fails, then try connecting through an HTTP proxy at
+192.168.0.8:8080 to 198.19.34.56:443 using TCP. Finally, try to connect
+through the same proxy to a server at 198.19.36.99:443 using TCP.
+.sp
+The following OpenVPN options may be used inside of a \fB<connection>\fP
+block:
+.sp
+\fBbind\fP, \fBconnect\-retry\fP, \fBconnect\-retry\-max\fP, \fBconnect\-timeout\fP,
+\fBexplicit\-exit\-notify\fP, \fBfloat\fP, \fBfragment\fP, \fBhttp\-proxy\fP,
+\fBhttp\-proxy\-option\fP, \fBkey\-direction\fP, \fBlink\-mtu\fP, \fBlocal\fP,
+\fBlport\fP, \fBmssfix\fP, \fBmtu\-disc\fP, \fBnobind\fP, \fBport\fP, \fBproto\fP,
+\fBremote\fP, \fBrport\fP, \fBsocks\-proxy\fP, \fBtls\-auth\fP, \fBtls\-crypt\fP,
+\fBtun\-mtu and\fP, \fBtun\-mtu\-extra\fP\&.
+.sp
+A defaulting mechanism exists for specifying options to apply to all
+\fB<connection>\fP profiles. If any of the above options (with the
+exception of \fBremote\fP ) appear outside of a \fB<connection>\fP block,
+but in a configuration file which has one or more \fB<connection>\fP
+blocks, the option setting will be used as a default for
+\fB<connection>\fP blocks which follow it in the configuration file.
+.sp
+For example, suppose the \fBnobind\fP option were placed in the sample
+configuration file above, near the top of the file, before the first
+\fB<connection>\fP block. The effect would be as if \fBnobind\fP were
+declared in all \fB<connection>\fP blocks below it.
+.SH INLINE FILE SUPPORT
+.sp
+OpenVPN allows including files in the main configuration for the \fB\-\-ca\fP,
+\fB\-\-cert\fP, \fB\-\-dh\fP, \fB\-\-extra\-certs\fP, \fB\-\-key\fP, \fB\-\-pkcs12\fP,
+\fB\-\-secret\fP, \fB\-\-crl\-verify\fP, \fB\-\-http\-proxy\-user\-pass\fP, \fB\-\-tls\-auth\fP,
+\fB\-\-auth\-gen\-token\-secret\fP, \fB\-\-tls\-crypt\fP and \fB\-\-tls\-crypt\-v2\fP
+options.
+.sp
+Each inline file started by the line \fB<option>\fP and ended by the line
+\fB</option>\fP
+.sp
+Here is an example of an inline file usage
+.INDENT 0.0
+.INDENT 3.5
+.sp
+.nf
+.ft C
+<cert>
+\-\-\-\-\-BEGIN CERTIFICATE\-\-\-\-\-
+[...]
+\-\-\-\-\-END CERTIFICATE\-\-\-\-\-
+</cert>
+.ft P
+.fi
+.UNINDENT
+.UNINDENT
+.sp
+When using the inline file feature with \fB\-\-pkcs12\fP the inline file has
+to be base64 encoded. Encoding of a .p12 file into base64 can be done
+for example with OpenSSL by running \fBopenssl base64 \-in input.p12\fP
+.SH SIGNALS
+.INDENT 0.0
+.TP
+.B \fBSIGHUP\fP
+Cause OpenVPN to close all TUN/TAP and network connections, restart,
+re\-read the configuration file (if any), and reopen TUN/TAP and network
+connections.
+.TP
+.B \fBSIGUSR1\fP
+Like \fBSIGHUP\(ga\fP, except don\(aqt re\-read configuration file, and
+possibly don\(aqt close and reopen TUN/TAP device, re\-read key files,
+preserve local IP address/port, or preserve most recently authenticated
+remote IP address/port based on \fB\-\-persist\-tun\fP, \fB\-\-persist\-key\fP,
+\fB\-\-persist\-local\-ip\fP and \fB\-\-persist\-remote\-ip\fP options respectively
+(see above).
+.sp
+This signal may also be internally generated by a timeout condition,
+governed by the \fB\-\-ping\-restart\fP option.
+.sp
+This signal, when combined with \fB\-\-persist\-remote\-ip\fP, may be sent
+when the underlying parameters of the host\(aqs network interface change
+such as when the host is a DHCP client and is assigned a new IP address.
+See \fB\-\-ipchange\fP for more information.
+.TP
+.B \fBSIGUSR2\fP
+Causes OpenVPN to display its current statistics (to the syslog file if
+\fB\-\-daemon\fP is used, or stdout otherwise).
+.TP
+.B \fBSIGINT\fP, \fBSIGTERM\fP
+Causes OpenVPN to exit gracefully.
+.UNINDENT
+.SH EXAMPLES
+.sp
+Prior to running these examples, you should have OpenVPN installed on
+two machines with network connectivity between them. If you have not yet
+installed OpenVPN, consult the INSTALL file included in the OpenVPN
+distribution.
+.SS Firewall Setup:
+.sp
+If firewalls exist between the two machines, they should be set to
+forward the port OpenVPN is configured to use, in both directions.
+The default for OpenVPN is 1194/udp.  If you do not have control
+over the firewalls between the two machines, you may still be able to
+use OpenVPN by adding \fB\-\-ping 15\fP to each of the \fBopenvpn\fP commands
+used below in the examples (this will cause each peer to send out a UDP
+ping to its remote peer once every 15 seconds which will cause many
+stateful firewalls to forward packets in both directions without an
+explicit firewall rule).
+.sp
+Please see your operating system guides for how to configure the firewall
+on your systems.
+.SS VPN Address Setup:
+.sp
+For purposes of our example, our two machines will be called
+\fBbob.example.com\fP and \fBalice.example.com\fP\&. If you are constructing a
+VPN over the internet, then replace \fBbob.example.com\fP and
+\fBalice.example.com\fP with the internet hostname or IP address that each
+machine will use to contact the other over the internet.
+.sp
+Now we will choose the tunnel endpoints. Tunnel endpoints are private IP
+addresses that only have meaning in the context of the VPN. Each machine
+will use the tunnel endpoint of the other machine to access it over the
+VPN. In our example, the tunnel endpoint for bob.example.com will be
+10.4.0.1 and for alice.example.com, 10.4.0.2.
+.sp
+Once the VPN is established, you have essentially created a secure
+alternate path between the two hosts which is addressed by using the
+tunnel endpoints. You can control which network traffic passes between
+the hosts (a) over the VPN or (b) independently of the VPN, by choosing
+whether to use (a) the VPN endpoint address or (b) the public internet
+address, to access the remote host. For example if you are on
+bob.example.com and you wish to connect to \fBalice.example.com\fP via
+\fBssh\fP without using the VPN (since \fBssh\fP has its own built\-in security)
+you would use the command \fBssh alice.example.com\fP\&. However in the same
+scenario, you could also use the command \fBtelnet 10.4.0.2\fP to create a
+telnet session with alice.example.com over the VPN, that would use the
+VPN to secure the session rather than \fBssh\fP\&.
+.sp
+You can use any address you wish for the tunnel endpoints but make sure
+that they are private addresses (such as those that begin with 10 or
+192.168) and that they are not part of any existing subnet on the
+networks of either peer, unless you are bridging. If you use an address
+that is part of your local subnet for either of the tunnel endpoints,
+you will get a weird feedback loop.
+.SS Example 1: A simple tunnel without security
+.sp
+On bob:
+.INDENT 0.0
+.INDENT 3.5
+.sp
+.nf
+.ft C
+openvpn \-\-remote alice.example.com \-\-dev tun1 \e
+         \-\-ifconfig 10.4.0.1 10.4.0.2 \-\-verb 9
+.ft P
+.fi
+.UNINDENT
+.UNINDENT
+.sp
+On alice:
+.INDENT 0.0
+.INDENT 3.5
+.sp
+.nf
+.ft C
+openvpn \-\-remote bob.example.com \-\-dev tun1 \e
+         \-\-ifconfig 10.4.0.2 10.4.0.1 \-\-verb 9
+.ft P
+.fi
+.UNINDENT
+.UNINDENT
+.sp
+Now verify the tunnel is working by pinging across the tunnel.
+.sp
+On bob:
+.INDENT 0.0
+.INDENT 3.5
+.sp
+.nf
+.ft C
+ping 10.4.0.2
+.ft P
+.fi
+.UNINDENT
+.UNINDENT
+.sp
+On alice:
+.INDENT 0.0
+.INDENT 3.5
+.sp
+.nf
+.ft C
+ping 10.4.0.1
+.ft P
+.fi
+.UNINDENT
+.UNINDENT
+.sp
+The \fB\-\-verb 9\fP option will produce verbose output, similar to the
+\fBtcpdump\fP(8) program. Omit the \fB\-\-verb 9\fP option to have OpenVPN run
+quietly.
+.SS Example 2: A tunnel with static\-key security (i.e. using a pre\-shared secret)
+.sp
+First build a static key on bob.
+.INDENT 0.0
+.INDENT 3.5
+.sp
+.nf
+.ft C
+openvpn \-\-genkey \-\-secret key
+.ft P
+.fi
+.UNINDENT
+.UNINDENT
+.sp
+This command will build a key file called \fBkey\fP (in ascii format). Now
+copy \fBkey\fP to \fBalice.example.com\fP over a secure medium such as by using
+the \fBscp\fP(1) program.
+.sp
+On bob:
+.INDENT 0.0
+.INDENT 3.5
+.sp
+.nf
+.ft C
+openvpn \-\-remote alice.example.com \-\-dev tun1  \e
+         \-\-ifconfig 10.4.0.1 10.4.0.2 \-\-verb 5 \e
+         \-\-secret key
+.ft P
+.fi
+.UNINDENT
+.UNINDENT
+.sp
+On alice:
+.INDENT 0.0
+.INDENT 3.5
+.sp
+.nf
+.ft C
+openvpn \-\-remote bob.example.com \-\-dev tun1   \e
+        \-\-ifconfig 10.4.0.2 10.4.0.1 \-\-verb 5 \e
+        \-\-secret key
+.ft P
+.fi
+.UNINDENT
+.UNINDENT
+.sp
+Now verify the tunnel is working by pinging across the tunnel.
+.sp
+On bob:
+.INDENT 0.0
+.INDENT 3.5
+.sp
+.nf
+.ft C
+ping 10.4.0.2
+.ft P
+.fi
+.UNINDENT
+.UNINDENT
+.sp
+On alice:
+.INDENT 0.0
+.INDENT 3.5
+.sp
+.nf
+.ft C
+ping 10.4.0.1
+.ft P
+.fi
+.UNINDENT
+.UNINDENT
+.SS Example 3: A tunnel with full TLS\-based security
+.sp
+For this test, we will designate \fBbob\fP as the TLS client and \fBalice\fP
+as the TLS server.
+.INDENT 0.0
+.TP
+.B \fINote:\fP
+The client or server designation only has
+meaning for the TLS subsystem. It has no bearing on OpenVPN\(aqs
+peer\-to\-peer, UDP\-based communication model.*
+.UNINDENT
+.sp
+First, build a separate certificate/key pair for both bob and alice (see
+above where \fB\-\-cert\fP is discussed for more info). Then construct
+Diffie Hellman parameters (see above where \fB\-\-dh\fP is discussed for
+more info). You can also use the included test files \fBclient.crt\fP,
+\fBclient.key\fP, \fBserver.crt\fP, \fBserver.key\fP and
+\fBca.crt\fP\&. The \fB\&.crt\fP files are certificates/public\-keys, the
+\fB\&.key\fP files are private keys, and \fBca.crt\fP is a certification
+authority who has signed both \fBclient.crt\fP and \fBserver.crt\fP\&.
+For Diffie Hellman parameters you can use the included file
+\fBdh2048.pem\fP\&.
+.INDENT 0.0
+.TP
+.B \fIWARNING:\fP
+All client, server, and certificate authority certificates
+and keys included in the OpenVPN distribution are totally
+insecure and should be used for testing only.
+.UNINDENT
+.sp
+On bob:
+.INDENT 0.0
+.INDENT 3.5
+.sp
+.nf
+.ft C
+openvpn \-\-remote alice.example.com \-\-dev tun1    \e
+        \-\-ifconfig 10.4.0.1 10.4.0.2             \e
+        \-\-tls\-client \-\-ca ca.crt                 \e
+        \-\-cert client.crt \-\-key client.key       \e
+        \-\-reneg\-sec 60 \-\-verb 5
+.ft P
+.fi
+.UNINDENT
+.UNINDENT
+.sp
+On alice:
+.INDENT 0.0
+.INDENT 3.5
+.sp
+.nf
+.ft C
+openvpn \-\-remote bob.example.com \-\-dev tun1      \e
+        \-\-ifconfig 10.4.0.2 10.4.0.1             \e
+        \-\-tls\-server \-\-dh dh1024.pem \-\-ca ca.crt \e
+        \-\-cert server.crt \-\-key server.key       \e
+        \-\-reneg\-sec 60 \-\-verb 5
+.ft P
+.fi
+.UNINDENT
+.UNINDENT
+.sp
+Now verify the tunnel is working by pinging across the tunnel.
+.sp
+On bob:
+.INDENT 0.0
+.INDENT 3.5
+.sp
+.nf
+.ft C
+ping 10.4.0.2
+.ft P
+.fi
+.UNINDENT
+.UNINDENT
+.sp
+On alice:
+.INDENT 0.0
+.INDENT 3.5
+.sp
+.nf
+.ft C
+ping 10.4.0.1
+.ft P
+.fi
+.UNINDENT
+.UNINDENT
+.sp
+Notice the \fB\-\-reneg\-sec 60\fP option we used above. That tells OpenVPN
+to renegotiate the data channel keys every minute. Since we used
+\fB\-\-verb 5\fP above, you will see status information on each new key
+negotiation.
+.sp
+For production operations, a key renegotiation interval of 60 seconds is
+probably too frequent. Omit the \fB\-\-reneg\-sec 60\fP option to use
+OpenVPN\(aqs default key renegotiation interval of one hour.
+.SS Routing:
+.sp
+Assuming you can ping across the tunnel, the next step is to route a
+real subnet over the secure tunnel. Suppose that bob and alice have two
+network interfaces each, one connected to the internet, and the other to
+a private network. Our goal is to securely connect both private
+networks. We will assume that bob\(aqs private subnet is \fI10.0.0.0/24\fP and
+alice\(aqs is \fI10.0.1.0/24\fP\&.
+.sp
+First, ensure that IP forwarding is enabled on both peers. On Linux,
+enable routing:
+.INDENT 0.0
+.INDENT 3.5
+.sp
+.nf
+.ft C
+echo 1 > /proc/sys/net/ipv4/ip_forward
+.ft P
+.fi
+.UNINDENT
+.UNINDENT
+.sp
+This setting is not persistent.  Please see your operating systems
+documentation how to properly configure IP forwarding, which is also
+persistent through system boots.
+.sp
+If your system is configured with a firewall.  Please see your operating
+systems guide on how to configure the firewall.  You typically want to
+allow traffic coming from and going to the tun/tap adapter OpenVPN is
+configured to use.
+.sp
+On bob:
+.INDENT 0.0
+.INDENT 3.5
+.sp
+.nf
+.ft C
+route add \-net 10.0.1.0 netmask 255.255.255.0 gw 10.4.0.2
+.ft P
+.fi
+.UNINDENT
+.UNINDENT
+.sp
+On alice:
+.INDENT 0.0
+.INDENT 3.5
+.sp
+.nf
+.ft C
+route add \-net 10.0.0.0 netmask 255.255.255.0 gw 10.4.0.1
+.ft P
+.fi
+.UNINDENT
+.UNINDENT
+.sp
+Now any machine on the \fI10.0.0.0/24\fP subnet can access any machine on the
+\fI10.0.1.0/24\fP subnet over the secure tunnel (or vice versa).
+.sp
+In a production environment, you could put the route command(s) in a
+script and execute with the \fB\-\-up\fP option.
+.SH FAQ
+.sp
+\fI\%https://community.openvpn.net/openvpn/wiki/FAQ\fP
+.SH HOWTO
+.sp
+For a more comprehensive guide to setting up OpenVPN in a production
+setting, see the OpenVPN HOWTO at
+\fI\%https://openvpn.net/community\-resources/how\-to/\fP
+.SH PROTOCOL
+.sp
+For a description of OpenVPN\(aqs underlying protocol, see
+\fI\%https://openvpn.net/community\-resources/openvpn\-protocol/\fP
+.SH WEB
+.sp
+OpenVPN\(aqs web site is at \fI\%https://openvpn.net/\fP
+.sp
+Go here to download the latest version of OpenVPN, subscribe to the
+mailing lists, read the mailing list archives, or browse the SVN
+repository.
+.SH BUGS
+.sp
+Report all bugs to the OpenVPN team \fI\%info@openvpn.net\fP
+.SH SEE ALSO
+.sp
+\fBdhcpcd\fP(8),
+\fBifconfig\fP(8),
+\fBopenssl\fP(1),
+\fBroute\fP(8),
+\fBscp\fP(1)
+\fBssh\fP(1)
+.SH NOTES
+.sp
+This product includes software developed by the OpenSSL Project
+(\fI\%https://www.openssl.org/\fP)
+.sp
+For more information on the TLS protocol, see
+\fI\%http://www.ietf.org/rfc/rfc2246.txt\fP
+.sp
+For more information on the LZO real\-time compression library see
+\fI\%https://www.oberhumer.com/opensource/lzo/\fP
+.SH COPYRIGHT
+.sp
+Copyright (C) 2002\-2020 OpenVPN Inc This program is free software; you
+can redistribute it and/or modify it under the terms of the GNU General
+Public License version 2 as published by the Free Software Foundation.
+.SH AUTHORS
+.sp
+James Yonan \fI\%james@openvpn.net\fP
+.\" Generated by docutils manpage writer.
+.
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+</head>
+<body>
+<div class="document" id="openvpn">
+<h1 class="title">openvpn</h1>
+<h2 class="subtitle" id="secure-ip-tunnel-daemon">Secure IP tunnel daemon</h2>
+<table class="docinfo" frame="void" rules="none">
+<col class="docinfo-name" />
+<col class="docinfo-content" />
+<tbody valign="top">
+<tr class="manual-section field"><th class="docinfo-name">Manual section:</th><td class="field-body">8</td>
+</tr>
+<tr class="manual-group field"><th class="docinfo-name">Manual group:</th><td class="field-body">System Manager's Manual</td>
+</tr>
+</tbody>
+</table>
+<div class="section" id="synopsis">
+<h1>SYNOPSIS</h1>
+<div class="line-block">
+<div class="line"><tt class="docutils literal">openvpn</tt> [ options ... ]</div>
+<div class="line"><tt class="docutils literal">openvpn</tt>  <tt class="docutils literal"><span class="pre">--help</span></tt></div>
+</div>
+</div>
+<div class="section" id="introduction">
+<h1>INTRODUCTION</h1>
+<p>OpenVPN is an open source VPN daemon by James Yonan. Because OpenVPN
+tries to be a universal VPN tool offering a great deal of flexibility,
+there are a lot of options on this manual page. If you're new to
+OpenVPN, you might want to skip ahead to the examples section where you
+will see how to construct simple VPNs on the command line without even
+needing a configuration file.</p>
+<p>Also note that there's more documentation and examples on the OpenVPN
+web site: <a class="reference external" href="https://openvpn.net/">https://openvpn.net/</a></p>
+<p>And if you would like to see a shorter version of this manual, see the
+openvpn usage message which can be obtained by running <strong>openvpn</strong>
+without any parameters.</p>
+</div>
+<div class="section" id="description">
+<h1>DESCRIPTION</h1>
+<p>OpenVPN is a robust and highly flexible VPN daemon. OpenVPN supports
+SSL/TLS security, ethernet bridging, TCP or UDP tunnel transport through
+proxies or NAT, support for dynamic IP addresses and DHCP, scalability
+to hundreds or thousands of users, and portability to most major OS
+platforms.</p>
+<p>OpenVPN is tightly bound to the OpenSSL library, and derives much of its
+crypto capabilities from it.</p>
+<p>OpenVPN supports conventional encryption using a pre-shared secret key
+<strong>(Static Key mode)</strong> or public key security <strong>(SSL/TLS mode)</strong> using
+client &amp; server certificates. OpenVPN also supports non-encrypted
+TCP/UDP tunnels.</p>
+<p>OpenVPN is designed to work with the <strong>TUN/TAP</strong> virtual networking
+interface that exists on most platforms.</p>
+<p>Overall, OpenVPN aims to offer many of the key features of IPSec but
+with a relatively lightweight footprint.</p>
+</div>
+<div class="section" id="options">
+<h1>OPTIONS</h1>
+<p>OpenVPN allows any option to be placed either on the command line or in
+a configuration file. Though all command line options are preceded by a
+double-leading-dash (&quot;--&quot;), this prefix can be removed when an option is
+placed in a configuration file.</p>
+<div class="section" id="generic-options">
+<h2>Generic Options</h2>
+<p>This section covers generic options which are accessible regardless of
+which mode OpenVPN is configured as.</p>
+<table class="docutils option-list" frame="void" rules="none">
+<col class="option" />
+<col class="description" />
+<tbody valign="top">
+<tr><td class="option-group">
+<kbd><span class="option">--help</span></kbd></td>
+<td>Show options.</td></tr>
+<tr><td class="option-group">
+<kbd><span class="option">--auth-nocache</span></kbd></td>
+<td><p class="first">Don't cache <tt class="docutils literal"><span class="pre">--askpass</span></tt> or <tt class="docutils literal"><span class="pre">--auth-user-pass</span></tt> username/passwords in
+virtual memory.</p>
+<p>If specified, this directive will cause OpenVPN to immediately forget
+username/password inputs after they are used. As a result, when OpenVPN
+needs a username/password, it will prompt for input from stdin, which
+may be multiple times during the duration of an OpenVPN session.</p>
+<p>When using <tt class="docutils literal"><span class="pre">--auth-nocache</span></tt> in combination with a user/password file
+and <tt class="docutils literal"><span class="pre">--chroot</span></tt> or <tt class="docutils literal"><span class="pre">--daemon</span></tt>, make sure to use an absolute path.</p>
+<p class="last">This directive does not affect the <tt class="docutils literal"><span class="pre">--http-proxy</span></tt> username/password.
+It is always cached.</p>
+</td></tr>
+<tr><td class="option-group">
+<kbd><span class="option">--cd <var>dir</var></span></kbd></td>
+<td><p class="first">Change directory to <tt class="docutils literal">dir</tt> prior to reading any files such as
+configuration files, key files, scripts, etc. <tt class="docutils literal">dir</tt> should be an
+absolute path, with a leading &quot;/&quot;, and without any references to the
+current directory such as <code>.</code> or <code>..</code>.</p>
+<p class="last">This option is useful when you are running OpenVPN in <tt class="docutils literal"><span class="pre">--daemon</span></tt> mode,
+and you want to consolidate all of your OpenVPN control files in one
+location.</p>
+</td></tr>
+<tr><td class="option-group">
+<kbd><span class="option">--chroot <var>dir</var></span></kbd></td>
+<td><p class="first">Chroot to <tt class="docutils literal">dir</tt> after initialization. <tt class="docutils literal"><span class="pre">--chroot</span></tt> essentially
+redefines <tt class="docutils literal">dir</tt> as being the top level directory tree (/). OpenVPN
+will therefore be unable to access any files outside this tree. This can
+be desirable from a security standpoint.</p>
+<p>Since the chroot operation is delayed until after initialization, most
+OpenVPN options that reference files will operate in a pre-chroot
+context.</p>
+<p>In many cases, the <tt class="docutils literal">dir</tt> parameter can point to an empty directory,
+however complications can result when scripts or restarts are executed
+after the chroot operation.</p>
+<p class="last">Note: The SSL library will probably need /dev/urandom to be available
+inside the chroot directory <tt class="docutils literal">dir</tt>. This is because SSL libraries
+occasionally need to collect fresh random. Newer linux kernels and some
+BSDs implement a getrandom() or getentropy() syscall that removes the
+need for /dev/urandom to be available.</p>
+</td></tr>
+<tr><td class="option-group">
+<kbd><span class="option">--config <var>file</var></span></kbd></td>
+<td><p class="first">Load additional config options from <tt class="docutils literal">file</tt> where each line corresponds
+to one command line option, but with the leading '--' removed.</p>
+<p>If <tt class="docutils literal"><span class="pre">--config</span> file</tt> is the only option to the openvpn command, the
+<tt class="docutils literal"><span class="pre">--config</span></tt> can be removed, and the command can be given as <tt class="docutils literal">openvpn
+file</tt></p>
+<p>Note that configuration files can be nested to a reasonable depth.</p>
+<p>Double quotation or single quotation characters (&quot;&quot;, '') can be used to
+enclose single parameters containing whitespace, and &quot;#&quot; or &quot;;&quot;
+characters in the first column can be used to denote comments.</p>
+<p>Note that OpenVPN 2.0 and higher performs backslash-based shell escaping
+for characters not in single quotations, so the following mappings
+should be observed:</p>
+<pre class="literal-block">
+\\       Maps to a single backslash character (\).
+\&quot;       Pass a literal doublequote character (&quot;), don't
+         interpret it as enclosing a parameter.
+\[SPACE] Pass a literal space or tab character, don't
+         interpret it as a parameter delimiter.
+</pre>
+<p>For example on Windows, use double backslashes to represent pathnames:</p>
+<pre class="literal-block">
+secret &quot;c:\\OpenVPN\\secret.key&quot;
+</pre>
+<p>For examples of configuration files, see
+<a class="reference external" href="https://openvpn.net/community-resources/how-to/">https://openvpn.net/community-resources/how-to/</a></p>
+<p>Here is an example configuration file:</p>
+<pre class="last literal-block">
+#
+# Sample OpenVPN configuration file for
+# using a pre-shared static key.
+#
+# '#' or ';' may be used to delimit comments.
+
+# Use a dynamic tun device.
+dev tun
+
+# Our remote peer
+remote mypeer.mydomain
+
+# 10.1.0.1 is our local VPN endpoint
+# 10.1.0.2 is our remote VPN endpoint
+ifconfig 10.1.0.1 10.1.0.2
+
+# Our pre-shared static key
+secret static.key
+</pre>
+</td></tr>
+<tr><td class="option-group" colspan="2">
+<kbd><span class="option">--daemon <var>progname</var></span></kbd></td>
+</tr>
+<tr><td>&nbsp;</td><td><p class="first">Become a daemon after all initialization functions are completed. This
+option will cause all message and error output to be sent to the syslog
+file (such as <code>/var/log/messages</code>), except for the output of
+scripts and ifconfig commands, which will go to <code>/dev/null</code> unless
+otherwise redirected. The syslog redirection occurs immediately at the
+point that <tt class="docutils literal"><span class="pre">--daemon</span></tt> is parsed on the command line even though the
+daemonization point occurs later. If one of the <tt class="docutils literal"><span class="pre">--log</span></tt> options is
+present, it will supersede syslog redirection.</p>
+<p>The optional <tt class="docutils literal">progname</tt> parameter will cause OpenVPN to report its
+program name to the system logger as <tt class="docutils literal">progname</tt>. This can be useful in
+linking OpenVPN messages in the syslog file with specific tunnels. When
+unspecified, <tt class="docutils literal">progname</tt> defaults to &quot;openvpn&quot;.</p>
+<p>When OpenVPN is run with the <tt class="docutils literal"><span class="pre">--daemon</span></tt> option, it will try to delay
+daemonization until the majority of initialization functions which are
+capable of generating fatal errors are complete. This means that
+initialization scripts can test the return status of the openvpn command
+for a fairly reliable indication of whether the command has correctly
+initialized and entered the packet forwarding event loop.</p>
+<p>In OpenVPN, the vast majority of errors which occur after initialization
+are non-fatal.</p>
+<p>Note: as soon as OpenVPN has daemonized, it can not ask for usernames,
+passwords, or key pass phrases anymore. This has certain consequences,
+namely that using a password-protected private key will fail unless the
+<tt class="docutils literal"><span class="pre">--askpass</span></tt> option is used to tell OpenVPN to ask for the pass phrase
+(this requirement is new in v2.3.7, and is a consequence of calling
+daemon() before initializing the crypto layer).</p>
+<p class="last">Further, using <tt class="docutils literal"><span class="pre">--daemon</span></tt> together with <tt class="docutils literal"><span class="pre">--auth-user-pass</span></tt> (entered
+on console) and <tt class="docutils literal"><span class="pre">--auth-nocache</span></tt> will fail as soon as key
+renegotiation (and reauthentication) occurs.</p>
+</td></tr>
+<tr><td class="option-group">
+<kbd><span class="option">--disable-occ</span></kbd></td>
+<td><p class="first">Don't output a warning message if option inconsistencies are detected
+between peers. An example of an option inconsistency would be where one
+peer uses <tt class="docutils literal"><span class="pre">--dev</span> tun</tt> while the other peer uses <tt class="docutils literal"><span class="pre">--dev</span> tap</tt>.</p>
+<p class="last">Use of this option is discouraged, but is provided as a temporary fix in
+situations where a recent version of OpenVPN must connect to an old
+version.</p>
+</td></tr>
+<tr><td class="option-group" colspan="2">
+<kbd><span class="option">--engine <var>engine-name</var></span></kbd></td>
+</tr>
+<tr><td>&nbsp;</td><td><p class="first">Enable OpenSSL hardware-based crypto engine functionality.</p>
+<p class="last">If <tt class="docutils literal"><span class="pre">engine-name</span></tt> is specified, use a specific crypto engine. Use the
+<tt class="docutils literal"><span class="pre">--show-engines</span></tt> standalone option to list the crypto engines which
+are supported by OpenSSL.</p>
+</td></tr>
+<tr><td class="option-group">
+<kbd><span class="option">--fast-io</span></kbd></td>
+<td><p class="first">(Experimental) Optimize TUN/TAP/UDP I/O writes by avoiding a call to
+poll/epoll/select prior to the write operation. The purpose of such a
+call would normally be to block until the device or socket is ready to
+accept the write. Such blocking is unnecessary on some platforms which
+don't support write blocking on UDP sockets or TUN/TAP devices. In such
+cases, one can optimize the event loop by avoiding the poll/epoll/select
+call, improving CPU efficiency by 5% to 10%.</p>
+<p class="last">This option can only be used on non-Windows systems, when <tt class="docutils literal"><span class="pre">--proto</span>
+udp</tt> is specified, and when <tt class="docutils literal"><span class="pre">--shaper</span></tt> is NOT specified.</p>
+</td></tr>
+<tr><td class="option-group">
+<kbd><span class="option">--group <var>group</var></span></kbd></td>
+<td>Similar to the <tt class="docutils literal"><span class="pre">--user</span></tt> option, this option changes the group ID of
+the OpenVPN process to <tt class="docutils literal">group</tt> after initialization.</td></tr>
+<tr><td class="option-group" colspan="2">
+<kbd><span class="option">--ignore-unknown-option <var>args</var></span></kbd></td>
+</tr>
+<tr><td>&nbsp;</td><td><p class="first">Valid syntax:</p>
+<pre class="literal-block">
+ignore-unknown-options opt1 opt2 opt3 ... optN
+</pre>
+<p>When one of options <tt class="docutils literal">opt1 ... optN</tt> is encountered in the configuration
+file the configuration file parsing does not fail if this OpenVPN version
+does not support the option. Multiple <tt class="docutils literal"><span class="pre">--ignore-unknown-option</span></tt> options
+can be given to support a larger number of options to ignore.</p>
+<p>This option should be used with caution, as there are good security
+reasons for having OpenVPN fail if it detects problems in a config file.
+Having said that, there are valid reasons for wanting new software
+features to gracefully degrade when encountered by older software
+versions.</p>
+<p class="last"><tt class="docutils literal"><span class="pre">--ignore-unknown-option</span></tt> is available since OpenVPN 2.3.3.</p>
+</td></tr>
+<tr><td class="option-group">
+<kbd><span class="option">--iproute <var>cmd</var></span></kbd></td>
+<td>Set alternate command to execute instead of default <tt class="docutils literal">iproute2</tt> command.
+May be used in order to execute OpenVPN in unprivileged environment.</td></tr>
+<tr><td class="option-group" colspan="2">
+<kbd><span class="option">--keying-material-exporter <var>args</var></span></kbd></td>
+</tr>
+<tr><td>&nbsp;</td><td><p class="first">Save Exported Keying Material [RFC5705] of len bytes (must be between 16
+and 4095 bytes) using <tt class="docutils literal">label</tt> in environment
+(<code>exported_keying_material</code>) for use by plugins in
+<code>OPENVPN_PLUGIN_TLS_FINAL</code> callback.</p>
+<p>Valid syntax:</p>
+<pre class="literal-block">
+keying-material-exporter label len
+</pre>
+<p class="last">Note that exporter <tt class="docutils literal">labels</tt> have the potential to collide with existing
+PRF labels. In order to prevent this, labels <em>MUST</em> begin with
+<code>EXPORTER</code>.</p>
+</td></tr>
+<tr><td class="option-group">
+<kbd><span class="option">--mlock</span></kbd></td>
+<td><p class="first">Disable paging by calling the POSIX mlockall function. Requires that
+OpenVPN be initially run as root (though OpenVPN can subsequently
+downgrade its UID using the <tt class="docutils literal"><span class="pre">--user</span></tt> option).</p>
+<p>Using this option ensures that key material and tunnel data are never
+written to disk due to virtual memory paging operations which occur
+under most modern operating systems. It ensures that even if an attacker
+was able to crack the box running OpenVPN, he would not be able to scan
+the system swap file to recover previously used ephemeral keys, which
+are used for a period of time governed by the <tt class="docutils literal"><span class="pre">--reneg</span></tt> options (see
+below), then are discarded.</p>
+<p class="last">The downside of using <tt class="docutils literal"><span class="pre">--mlock</span></tt> is that it will reduce the amount of
+physical memory available to other applications.</p>
+</td></tr>
+<tr><td class="option-group">
+<kbd><span class="option">--nice <var>n</var></span></kbd></td>
+<td>Change process priority after initialization (<tt class="docutils literal">n</tt> greater than 0 is
+lower priority, <tt class="docutils literal">n</tt> less than zero is higher priority).</td></tr>
+<tr><td class="option-group">
+<kbd><span class="option">--persist-key</span></kbd></td>
+<td><p class="first">Don't re-read key files across <code>SIGUSR1</code> or <tt class="docutils literal"><span class="pre">--ping-restart</span></tt>.</p>
+<p>This option can be combined with <tt class="docutils literal"><span class="pre">--user</span> nobody</tt> to allow restarts
+triggered by the <code>SIGUSR1</code> signal. Normally if you drop root
+privileges in OpenVPN, the daemon cannot be restarted since it will now
+be unable to re-read protected key files.</p>
+<p class="last">This option solves the problem by persisting keys across <code>SIGUSR1</code>
+resets, so they don't need to be re-read.</p>
+</td></tr>
+<tr><td class="option-group" colspan="2">
+<kbd><span class="option">--remap-usr1 <var>signal</var></span></kbd></td>
+</tr>
+<tr><td>&nbsp;</td><td><p class="first">Control whether internally or externally generated <code>SIGUSR1</code> signals
+are remapped to <code>SIGHUP</code> (restart without persisting state) or
+SIGTERM (exit).</p>
+<p class="last"><tt class="docutils literal">signal</tt> can be set to <code>SIGHUP</code> or <code>SIGTERM</code>. By default,
+no remapping occurs.</p>
+</td></tr>
+<tr><td class="option-group" colspan="2">
+<kbd><span class="option">--script-security <var>level</var></span></kbd></td>
+</tr>
+<tr><td>&nbsp;</td><td><p class="first">This directive offers policy-level control over OpenVPN's usage of
+external programs and scripts. Lower <tt class="docutils literal">level</tt> values are more
+restrictive, higher values are more permissive. Settings for <tt class="docutils literal">level</tt>:</p>
+<dl class="docutils">
+<dt><code>0</code></dt>
+<dd>Strictly no calling of external programs.</dd>
+<dt><code>1</code></dt>
+<dd>(Default) Only call built-in executables such as ifconfig,
+ip, route, or netsh.</dd>
+<dt><code>2</code></dt>
+<dd>Allow calling of built-in executables and user-defined
+scripts.</dd>
+<dt><code>3</code></dt>
+<dd>Allow passwords to be passed to scripts via environmental
+variables (potentially unsafe).</dd>
+</dl>
+<p>OpenVPN releases before v2.3 also supported a <tt class="docutils literal">method</tt> flag which
+indicated how OpenVPN should call external commands and scripts. This
+could be either <code>execve</code> or <code>system</code>. As of OpenVPN 2.3, this
+flag is no longer accepted. In most *nix environments the execve()
+approach has been used without any issues.</p>
+<p>Some directives such as <tt class="docutils literal"><span class="pre">--up</span></tt> allow options to be passed to the
+external script. In these cases make sure the script name does not
+contain any spaces or the configuration parser will choke because it
+can't determine where the script name ends and script options start.</p>
+<p>To run scripts in Windows in earlier OpenVPN versions you needed to
+either add a full path to the script interpreter which can parse the
+script or use the <tt class="docutils literal">system</tt> flag to run these scripts. As of OpenVPN
+2.3 it is now a strict requirement to have full path to the script
+interpreter when running non-executables files. This is not needed for
+executable files, such as .exe, .com, .bat or .cmd files. For example,
+if you have a Visual Basic script, you must use this syntax now:</p>
+<pre class="literal-block">
+--up 'C:\\Windows\\System32\\wscript.exe C:\\Program\ Files\\OpenVPN\\config\\my-up-script.vbs'
+</pre>
+<p>Please note the single quote marks and the escaping of the backslashes
+(\) and the space character.</p>
+<p class="last">The reason the support for the <code>system</code> flag was removed is due to
+the security implications with shell expansions when executing scripts
+via the <code>system()</code> call.</p>
+</td></tr>
+<tr><td class="option-group" colspan="2">
+<kbd><span class="option">--setcon <var>context</var></span></kbd></td>
+</tr>
+<tr><td>&nbsp;</td><td><p class="first">Apply SELinux <tt class="docutils literal">context</tt> after initialization. This essentially
+provides the ability to restrict OpenVPN's rights to only network I/O
+operations, thanks to SELinux. This goes further than <tt class="docutils literal"><span class="pre">--user</span></tt> and
+<tt class="docutils literal"><span class="pre">--chroot</span></tt> in that those two, while being great security features,
+unfortunately do not protect against privilege escalation by
+exploitation of a vulnerable system call. You can of course combine all
+three, but please note that since setcon requires access to /proc you
+will have to provide it inside the chroot directory (e.g. with mount
+--bind).</p>
+<p>Since the setcon operation is delayed until after initialization,
+OpenVPN can be restricted to just network-related system calls, whereas
+by applying the context before startup (such as the OpenVPN one provided
+in the SELinux Reference Policies) you will have to allow many things
+required only during initialization.</p>
+<p class="last">Like with chroot, complications can result when scripts or restarts are
+executed after the setcon operation, which is why you should really
+consider using the <tt class="docutils literal"><span class="pre">--persist-key</span></tt> and <tt class="docutils literal"><span class="pre">--persist-tun</span></tt> options.</p>
+</td></tr>
+<tr><td class="option-group">
+<kbd><span class="option">--status <var>args</var></span></kbd></td>
+<td><p class="first">Write operational status to <tt class="docutils literal">file</tt> every <tt class="docutils literal">n</tt> seconds.</p>
+<p>Valid syntaxes:</p>
+<pre class="literal-block">
+status file
+status file n
+</pre>
+<p>Status can also be written to the syslog by sending a <code>SIGUSR2</code>
+signal.</p>
+<p>With multi-client capability enabled on a server, the status file
+includes a list of clients and a routing table. The output format can be
+controlled by the <tt class="docutils literal"><span class="pre">--status-version</span></tt> option in that case.</p>
+<p class="last">For clients or instances running in point-to-point mode, it will contain
+the traffic statistics.</p>
+</td></tr>
+<tr><td class="option-group" colspan="2">
+<kbd><span class="option">--status-version <var>n</var></span></kbd></td>
+</tr>
+<tr><td>&nbsp;</td><td><p class="first">Set the status file format version number to <tt class="docutils literal">n</tt>.</p>
+<p>This only affects the status file on servers with multi-client
+capability enabled.  Valid status version values:</p>
+<dl class="last docutils">
+<dt><code>1</code></dt>
+<dd>Traditional format (default). The client list contains the
+following fields comma-separated: Common Name, Real Address, Bytes
+Received, Bytes Sent, Connected Since.</dd>
+<dt><code>2</code></dt>
+<dd>A more reliable format for external processing. Compared to
+version <code>1</code>, the client list contains some additional fields:
+Virtual Address, Virtual IPv6 Address, Username, Client ID, Peer ID,
+Data Channel Cipher. Future versions may extend the number of fields.</dd>
+<dt><code>3</code></dt>
+<dd>Identical to <code>2</code>, but fields are tab-separated.</dd>
+</dl>
+</td></tr>
+<tr><td class="option-group">
+<kbd><span class="option">--test-crypto</span></kbd></td>
+<td><p class="first">Do a self-test of OpenVPN's crypto options by encrypting and decrypting
+test packets using the data channel encryption options specified above.
+This option does not require a peer to function, and therefore can be
+specified without <tt class="docutils literal"><span class="pre">--dev</span></tt> or <tt class="docutils literal"><span class="pre">--remote</span></tt>.</p>
+<p>The typical usage of <tt class="docutils literal"><span class="pre">--test-crypto</span></tt> would be something like this:</p>
+<pre class="literal-block">
+openvpn --test-crypto --secret key
+</pre>
+<p>or</p>
+<pre class="literal-block">
+openvpn --test-crypto --secret key --verb 9
+</pre>
+<p class="last">This option is very useful to test OpenVPN after it has been ported to a
+new platform, or to isolate problems in the compiler, OpenSSL crypto
+library, or OpenVPN's crypto code. Since it is a self-test mode,
+problems with encryption and authentication can be debugged
+independently of network and tunnel issues.</p>
+</td></tr>
+<tr><td class="option-group">
+<kbd><span class="option">--tmp-dir <var>dir</var></span></kbd></td>
+<td><p class="first">Specify a directory <tt class="docutils literal">dir</tt> for temporary files. This directory will be
+used by openvpn processes and script to communicate temporary data with
+openvpn main process. Note that the directory must be writable by the
+OpenVPN process after it has dropped it's root privileges.</p>
+<p>This directory will be used by in the following cases:</p>
+<ul class="last simple">
+<li><tt class="docutils literal"><span class="pre">--client-connect</span></tt> scripts and <code>OPENVPN_PLUGIN_CLIENT_CONNECT</code>
+plug-in hook to dynamically generate client-specific configuration
+<code>client_connect_config_file</code> and return success/failure via
+<code>client_connect_deferred_file</code> when using deferred client connect
+method</li>
+<li><code>OPENVPN_PLUGIN_AUTH_USER_PASS_VERIFY</code> plug-in hooks returns
+success/failure via <code>auth_control_file</code> when using deferred auth
+method</li>
+<li><code>OPENVPN_PLUGIN_ENABLE_PF</code> plugin hook to pass filtering rules
+via <tt class="docutils literal">pf_file</tt></li>
+</ul>
+</td></tr>
+<tr><td class="option-group" colspan="2">
+<kbd><span class="option">--use-prediction-resistance</span></kbd></td>
+</tr>
+<tr><td>&nbsp;</td><td><p class="first">Enable prediction resistance on mbed TLS's RNG.</p>
+<p>Enabling prediction resistance causes the RNG to reseed in each call for
+random. Reseeding this often can quickly deplete the kernel entropy
+pool.</p>
+<p class="last">If you need this option, please consider running a daemon that adds
+entropy to the kernel pool.</p>
+</td></tr>
+<tr><td class="option-group">
+<kbd><span class="option">--user <var>user</var></span></kbd></td>
+<td><p class="first">Change the user ID of the OpenVPN process to <tt class="docutils literal">user</tt> after
+initialization, dropping privileges in the process. This option is
+useful to protect the system in the event that some hostile party was
+able to gain control of an OpenVPN session. Though OpenVPN's security
+features make this unlikely, it is provided as a second line of defense.</p>
+<p class="last">By setting <tt class="docutils literal">user</tt> to <code>nobody</code> or somebody similarly unprivileged,
+the hostile party would be limited in what damage they could cause. Of
+course once you take away privileges, you cannot return them to an
+OpenVPN session. This means, for example, that if you want to reset an
+OpenVPN daemon with a <code>SIGUSR1</code> signal (for example in response to
+a DHCP reset), you should make use of one or more of the <tt class="docutils literal"><span class="pre">--persist</span></tt>
+options to ensure that OpenVPN doesn't need to execute any privileged
+operations in order to restart (such as re-reading key files or running
+<tt class="docutils literal">ifconfig</tt> on the TUN device).</p>
+</td></tr>
+<tr><td class="option-group" colspan="2">
+<kbd><span class="option">--writepid <var>file</var></span></kbd></td>
+</tr>
+<tr><td>&nbsp;</td><td>Write OpenVPN's main process ID to <tt class="docutils literal">file</tt>.</td></tr>
+</tbody>
+</table>
+</div>
+<div class="section" id="log-options">
+<h2>Log options</h2>
+<table class="docutils option-list" frame="void" rules="none">
+<col class="option" />
+<col class="description" />
+<tbody valign="top">
+<tr><td class="option-group">
+<kbd><span class="option">--echo <var>parms</var></span></kbd></td>
+<td><p class="first">Echo <tt class="docutils literal">parms</tt> to log output.</p>
+<p class="last">Designed to be used to send messages to a controlling application which
+is receiving the OpenVPN log output.</p>
+</td></tr>
+<tr><td class="option-group" colspan="2">
+<kbd><span class="option">--errors-to-stderr</span></kbd></td>
+</tr>
+<tr><td>&nbsp;</td><td>Output errors to stderr instead of stdout unless log output is
+redirected by one of the <tt class="docutils literal"><span class="pre">--log</span></tt> options.</td></tr>
+<tr><td class="option-group">
+<kbd><span class="option">--log <var>file</var></span></kbd></td>
+<td><p class="first">Output logging messages to <tt class="docutils literal">file</tt>, including output to stdout/stderr
+which is generated by called scripts. If <tt class="docutils literal">file</tt> already exists it will
+be truncated. This option takes effect immediately when it is parsed in
+the command line and will supersede syslog output if <tt class="docutils literal"><span class="pre">--daemon</span></tt> or
+<tt class="docutils literal"><span class="pre">--inetd</span></tt> is also specified. This option is persistent over the entire
+course of an OpenVPN instantiation and will not be reset by
+<code>SIGHUP</code>, <code>SIGUSR1</code>, or <tt class="docutils literal"><span class="pre">--ping-restart</span></tt>.</p>
+<p class="last">Note that on Windows, when OpenVPN is started as a service, logging
+occurs by default without the need to specify this option.</p>
+</td></tr>
+<tr><td class="option-group" colspan="2">
+<kbd><span class="option">--log-append <var>file</var></span></kbd></td>
+</tr>
+<tr><td>&nbsp;</td><td>Append logging messages to <tt class="docutils literal">file</tt>.  If <tt class="docutils literal">file</tt> does not exist, it will
+be created. This option behaves exactly like <tt class="docutils literal"><span class="pre">--log</span></tt> except that it
+appends to rather than truncating the log file.</td></tr>
+<tr><td class="option-group" colspan="2">
+<kbd><span class="option">--machine-readable-output</span></kbd></td>
+</tr>
+<tr><td>&nbsp;</td><td>Always write timestamps and message flags to log messages, even when
+they otherwise would not be prefixed. In particular, this applies to log
+messages sent to stdout.</td></tr>
+<tr><td class="option-group">
+<kbd><span class="option">--mute <var>n</var></span></kbd></td>
+<td>Log at most <tt class="docutils literal">n</tt> consecutive messages in the same category. This is
+useful to limit repetitive logging of similar message types.</td></tr>
+<tr><td class="option-group" colspan="2">
+<kbd><span class="option">--mute-replay-warnings</span></kbd></td>
+</tr>
+<tr><td>&nbsp;</td><td>Silence the output of replay warnings, which are a common false alarm on
+WiFi networks. This option preserves the security of the replay
+protection code without the verbosity associated with warnings about
+duplicate packets.</td></tr>
+<tr><td class="option-group" colspan="2">
+<kbd><span class="option">--suppress-timestamps</span></kbd></td>
+</tr>
+<tr><td>&nbsp;</td><td>Avoid writing timestamps to log messages, even when they otherwise would
+be prepended. In particular, this applies to log messages sent to
+stdout.</td></tr>
+<tr><td class="option-group" colspan="2">
+<kbd><span class="option">--syslog <var>progname</var></span></kbd></td>
+</tr>
+<tr><td>&nbsp;</td><td>Direct log output to system logger, but do not become a daemon. See
+<tt class="docutils literal"><span class="pre">--daemon</span></tt> directive above for description of <tt class="docutils literal">progname</tt> parameter.</td></tr>
+<tr><td class="option-group">
+<kbd><span class="option">--verb <var>n</var></span></kbd></td>
+<td><p class="first">Set output verbosity to <tt class="docutils literal">n</tt> (default <code>1</code>). Each level shows all
+info from the previous levels. Level <code>3</code> is recommended if you want
+a good summary of what's happening without being swamped by output.</p>
+<dl class="last docutils">
+<dt><code>0</code></dt>
+<dd>No output except fatal errors.</dd>
+<dt><code>1</code> to <code>4</code></dt>
+<dd>Normal usage range.</dd>
+<dt><code>5</code></dt>
+<dd>Outputs <code>R</code> and <code>W</code> characters to the console for
+each packet read and write, uppercase is used for TCP/UDP
+packets and lowercase is used for TUN/TAP packets.</dd>
+<dt><code>6</code> to <code>11</code></dt>
+<dd>Debug info range (see <code>errlevel.h</code> in the source code for
+additional information on debug levels).</dd>
+</dl>
+</td></tr>
+</tbody>
+</table>
+</div>
+<div class="section" id="protocol-options">
+<h2>Protocol options</h2>
+<p>Options in this section affect features available in the OpenVPN wire
+protocol.  Many of these options also define the encryption options
+of the data channel in the OpenVPN wire protocol.  These options must be
+configured in a compatible way between both the local and remote side.</p>
+<table class="docutils option-list" frame="void" rules="none">
+<col class="option" />
+<col class="description" />
+<tbody valign="top">
+<tr><td class="option-group" colspan="2">
+<kbd><span class="option">--allow-compression <var>mode</var></span></kbd></td>
+</tr>
+<tr><td>&nbsp;</td><td><p class="first">As described in the <tt class="docutils literal"><span class="pre">--compress</span></tt> option, compression is a potentially
+dangerous option.  This option allows controlling the behaviour of
+OpenVPN when compression is used and allowed.</p>
+<p>Valid syntaxes:</p>
+<pre class="literal-block">
+allow-compression
+allow-compression mode
+</pre>
+<p>The <tt class="docutils literal">mode</tt> argument can be one of the following values:</p>
+<dl class="last docutils">
+<dt><code>asym</code>  (default)</dt>
+<dd>OpenVPN will only <em>decompress downlink packets</em> but <em>not compress
+uplink packets</em>.  This also allows migrating to disable compression
+when changing both server and client configurations to remove
+compression at the same time is not a feasible option.</dd>
+<dt><code>no</code></dt>
+<dd>OpenVPN will refuse any non-stub compression.</dd>
+<dt><code>yes</code></dt>
+<dd>OpenVPN will send and receive compressed packets.</dd>
+</dl>
+</td></tr>
+<tr><td class="option-group">
+<kbd><span class="option">--auth <var>alg</var></span></kbd></td>
+<td><p class="first">Authenticate data channel packets and (if enabled) <tt class="docutils literal"><span class="pre">tls-auth</span></tt> control
+channel packets with HMAC using message digest algorithm <tt class="docutils literal">alg</tt>. (The
+default is <tt class="docutils literal">SHA1</tt> ). HMAC is a commonly used message authentication
+algorithm (MAC) that uses a data string, a secure hash algorithm and a
+key to produce a digital signature.</p>
+<p>The OpenVPN data channel protocol uses encrypt-then-mac (i.e. first
+encrypt a packet then HMAC the resulting ciphertext), which prevents
+padding oracle attacks.</p>
+<p>If an AEAD cipher mode (e.g. GCM) is chosen then the specified <tt class="docutils literal"><span class="pre">--auth</span></tt>
+algorithm is ignored for the data channel and the authentication method
+of the AEAD cipher is used instead. Note that <tt class="docutils literal">alg</tt> still specifies
+the digest used for <tt class="docutils literal"><span class="pre">tls-auth</span></tt>.</p>
+<p>In static-key encryption mode, the HMAC key is included in the key file
+generated by <tt class="docutils literal"><span class="pre">--genkey</span></tt>. In TLS mode, the HMAC key is dynamically
+generated and shared between peers via the TLS control channel. If
+OpenVPN receives a packet with a bad HMAC it will drop the packet. HMAC
+usually adds 16 or 20 bytes per packet. Set <tt class="docutils literal">alg=none</tt> to disable
+authentication.</p>
+<p class="last">For more information on HMAC see
+<a class="reference external" href="http://www.cs.ucsd.edu/users/mihir/papers/hmac.html">http://www.cs.ucsd.edu/users/mihir/papers/hmac.html</a></p>
+</td></tr>
+<tr><td class="option-group">
+<kbd><span class="option">--cipher <var>alg</var></span></kbd></td>
+<td><p class="first">This option is deprecated for server-client mode. <tt class="docutils literal"><span class="pre">--data-ciphers</span></tt>
+or possibly <cite>--data-ciphers-fallback`</cite> should be used instead.</p>
+<p>Encrypt data channel packets with cipher algorithm <tt class="docutils literal">alg</tt>.</p>
+<p>The default is <code>BF-CBC</code>, an abbreviation for Blowfish in Cipher
+Block Chaining mode. When cipher negotiation (NCP) is allowed,
+OpenVPN 2.4 and newer on both client and server side will automatically
+upgrade to <code>AES-256-GCM</code>.  See <tt class="docutils literal"><span class="pre">--data-ciphers</span></tt> and
+<tt class="docutils literal"><span class="pre">--ncp-disable</span></tt> for more details on NCP.</p>
+<p>Using <code>BF-CBC</code> is no longer recommended, because of its 64-bit
+block size. This small block size allows attacks based on collisions, as
+demonstrated by SWEET32. See
+<a class="reference external" href="https://community.openvpn.net/openvpn/wiki/SWEET32">https://community.openvpn.net/openvpn/wiki/SWEET32</a>
+for details. Due to this, support for <code>BF-CBC</code>, <code>DES</code>,
+<code>CAST5</code>, <code>IDEA</code> and <code>RC2</code> ciphers will be removed in
+OpenVPN 2.6.</p>
+<p>To see other ciphers that are available with OpenVPN, use the
+<tt class="docutils literal"><span class="pre">--show-ciphers</span></tt> option.</p>
+<p class="last">Set <tt class="docutils literal">alg</tt> to <code>none</code> to disable encryption.</p>
+</td></tr>
+<tr><td class="option-group" colspan="2">
+<kbd><span class="option">--compress <var>algorithm</var></span></kbd></td>
+</tr>
+<tr><td>&nbsp;</td><td><p class="first"><strong>DEPRECATED</strong> Enable a compression algorithm.  Compression is generally
+not recommended.  VPN tunnels which use compression are susceptible to
+the VORALCE attack vector.</p>
+<p>The <tt class="docutils literal">algorithm</tt> parameter may be <code>lzo</code>, <code>lz4</code>,
+<code>lz4-v2</code>, <code>stub</code>, <code>stub-v2</code> or empty.
+LZO and LZ4 are different compression algorithms, with LZ4 generally
+offering the best performance with least CPU usage.</p>
+<p>The <code>lz4-v2</code> and <code>stub-v2</code> variants implement a better
+framing that does not add overhead when packets cannot be compressed. All
+other variants always add one extra framing byte compared to no
+compression framing.</p>
+<p>If the <tt class="docutils literal">algorithm</tt> parameter is <code>stub</code>, <code>stub-v2</code> or empty,
+compression will be turned off, but the packet framing for compression
+will still be enabled, allowing a different setting to be pushed later.
+Additionally, <code>stub</code> and <code>stub-v2</code> wil disable announcing
+<tt class="docutils literal">lzo</tt> and <tt class="docutils literal">lz4</tt> compression support via <em>IV_</em> variables to the
+server.</p>
+<p>Note: the <code>stub</code> (or empty) option is NOT compatible with the older
+option <tt class="docutils literal"><span class="pre">--comp-lzo</span> no</tt>.</p>
+<p><strong>*Security Considerations*</strong></p>
+<p class="last">Compression and encryption is a tricky combination. If an attacker knows
+or is able to control (parts of) the plain-text of packets that contain
+secrets, the attacker might be able to extract the secret if compression
+is enabled. See e.g. the <em>CRIME</em> and <em>BREACH</em> attacks on TLS and
+<em>VORACLE</em> on VPNs which also leverage to break encryption. If you are not
+entirely sure that the above does not apply to your traffic, you are
+advised to <em>not</em> enable compression.</p>
+</td></tr>
+<tr><td class="option-group" colspan="2">
+<kbd><span class="option">--comp-lzo <var>mode</var></span></kbd></td>
+</tr>
+<tr><td>&nbsp;</td><td><p class="first"><strong>DEPRECATED</strong> Enable LZO compression algorithm.  Compression is
+generally not recommended.  VPN tunnels which uses compression are
+suspectible to the VORALCE attack vector.</p>
+<p>Use LZO compression -- may add up to 1 byte per packet for incompressible
+data. <tt class="docutils literal">mode</tt> may be <code>yes</code>, <code>no</code>, or <code>adaptive</code>
+(default).</p>
+<p>In a server mode setup, it is possible to selectively turn compression
+on or off for individual clients.</p>
+<p>First, make sure the client-side config file enables selective
+compression by having at least one <tt class="docutils literal"><span class="pre">--comp-lzo</span></tt> directive, such as
+<tt class="docutils literal"><span class="pre">--comp-lzo</span> no</tt>. This will turn off compression by default, but allow
+a future directive push from the server to dynamically change the
+<code>on</code>/<code>off</code>/<code>adaptive</code> setting.</p>
+<p>Next in a <tt class="docutils literal"><span class="pre">--client-config-dir</span></tt> file, specify the compression setting
+for the client, for example:</p>
+<pre class="literal-block">
+comp-lzo yes
+push &quot;comp-lzo yes&quot;
+</pre>
+<p class="last">The first line sets the <tt class="docutils literal"><span class="pre">comp-lzo</span></tt> setting for the server side of the
+link, the second sets the client side.</p>
+</td></tr>
+<tr><td class="option-group">
+<kbd><span class="option">--comp-noadapt</span></kbd></td>
+<td><p class="first"><strong>DEPRECATED</strong> When used in conjunction with <tt class="docutils literal"><span class="pre">--comp-lzo</span></tt>, this option
+will disable OpenVPN's adaptive compression algorithm. Normally, adaptive
+compression is enabled with <tt class="docutils literal"><span class="pre">--comp-lzo</span></tt>.</p>
+<p class="last">Adaptive compression tries to optimize the case where you have
+compression enabled, but you are sending predominantly incompressible
+(or pre-compressed) packets over the tunnel, such as an FTP or rsync
+transfer of a large, compressed file. With adaptive compression, OpenVPN
+will periodically sample the compression process to measure its
+efficiency. If the data being sent over the tunnel is already
+compressed, the compression efficiency will be very low, triggering
+openvpn to disable compression for a period of time until the next
+re-sample test.</p>
+</td></tr>
+<tr><td class="option-group" colspan="2">
+<kbd><span class="option">--key-direction</span></kbd></td>
+</tr>
+<tr><td>&nbsp;</td><td>Alternative way of specifying the optional direction parameter for the
+<tt class="docutils literal"><span class="pre">--tls-auth</span></tt> and <tt class="docutils literal"><span class="pre">--secret</span></tt> options. Useful when using inline files
+(See section on inline files).</td></tr>
+<tr><td class="option-group">
+<kbd><span class="option">--keysize <var>n</var></span></kbd></td>
+<td><p class="first"><strong>DEPRECATED</strong> This option will be removed in OpenVPN 2.6.</p>
+<p class="last">Size of cipher key in bits (optional). If unspecified, defaults to
+cipher-specific default. The <tt class="docutils literal"><span class="pre">--show-ciphers</span></tt> option (see below) shows
+all available OpenSSL ciphers, their default key sizes, and whether the
+key size can be changed. Use care in changing a cipher's default key
+size. Many ciphers have not been extensively cryptanalyzed with
+non-standard key lengths, and a larger key may offer no real guarantee
+of greater security, or may even reduce security.</p>
+</td></tr>
+<tr><td class="option-group" colspan="2">
+<kbd><span class="option">--data-ciphers <var>cipher-list</var></span></kbd></td>
+</tr>
+<tr><td>&nbsp;</td><td><p class="first">Restrict the allowed ciphers to be negotiated to the ciphers in
+<tt class="docutils literal"><span class="pre">cipher-list</span></tt>. <tt class="docutils literal"><span class="pre">cipher-list</span></tt> is a colon-separated list of ciphers,
+and defaults to <code>AES-256-GCM:AES-128-GCM</code>.</p>
+<p>For servers, the first cipher from <tt class="docutils literal"><span class="pre">cipher-list</span></tt> that is also
+supported by the client will be pushed to clients that support cipher
+negotiation.</p>
+<p>Cipher negotiation is enabled in client-server mode only. I.e. if
+<tt class="docutils literal"><span class="pre">--mode</span></tt> is set to 'server' (server-side, implied by setting
+<tt class="docutils literal"><span class="pre">--server</span></tt> ), or if <tt class="docutils literal"><span class="pre">--pull</span></tt> is specified (client-side, implied by
+setting --client).</p>
+<p>If no common cipher is found during cipher negotiation, the connection
+is terminated. To support old clients/old servers that do not provide any
+cipher negotiation support see <tt class="docutils literal"><span class="pre">--data-ciphers-fallback</span></tt>.</p>
+<p>Additionally, to allow for more smooth transition, if NCP is enabled,
+OpenVPN will inherit the cipher of the peer if that cipher is different
+from the local <tt class="docutils literal"><span class="pre">--cipher</span></tt> setting, but the peer cipher is one of the
+ciphers specified in <tt class="docutils literal"><span class="pre">--data-ciphers</span></tt>. E.g. a non-NCP client (&lt;=v2.3,
+or with --ncp-disabled set) connecting to a NCP server (v2.4+) with
+<tt class="docutils literal"><span class="pre">--cipher</span> <span class="pre">BF-CBC</span></tt> and <tt class="docutils literal"><span class="pre">--data-ciphers</span> <span class="pre">AES-256-GCM:AES-256-CBC</span></tt> set can
+either specify <tt class="docutils literal"><span class="pre">--cipher</span> <span class="pre">BF-CBC</span></tt> or <tt class="docutils literal"><span class="pre">--cipher</span> <span class="pre">AES-256-CBC</span></tt> and both
+will work.</p>
+<p>Note for using NCP with an OpenVPN 2.4 peer: This list must include the
+<code>AES-256-GCM</code> and <code>AES-128-GCM</code> ciphers.</p>
+<p>This list is restricted to be 127 chars long after conversion to OpenVPN
+ciphers.</p>
+<p class="last">This option was called <tt class="docutils literal"><span class="pre">--ncp-ciphers</span></tt> in OpenVPN 2.4 but has been renamed
+to <tt class="docutils literal"><span class="pre">--data-ciphers</span></tt> in OpenVPN 2.5 to more accurately reflect its meaning.</p>
+</td></tr>
+<tr><td class="option-group" colspan="2">
+<kbd><span class="option">--data-ciphers-fallback <var>alg</var></span></kbd></td>
+</tr>
+<tr><td>&nbsp;</td><td><p class="first">Configure a cipher that is used to fall back to if we could not determine
+which cipher the peer is willing to use.</p>
+<p class="last">This option should only be needed to
+connect to peers that are running OpenVPN 2.3 and older version, and
+have been configured with <cite>--enable-small</cite>
+(typically used on routers or other embedded devices).</p>
+</td></tr>
+<tr><td class="option-group">
+<kbd><span class="option">--ncp-disable</span></kbd></td>
+<td><strong>DEPRECATED</strong> Disable &quot;Negotiable Crypto Parameters&quot;. This completely
+disables cipher negotiation.</td></tr>
+<tr><td class="option-group">
+<kbd><span class="option">--secret <var>args</var></span></kbd></td>
+<td><p class="first">Enable Static Key encryption mode (non-TLS). Use pre-shared secret
+<tt class="docutils literal">file</tt> which was generated with <tt class="docutils literal"><span class="pre">--genkey</span></tt>.</p>
+<p>Valid syntaxes:</p>
+<pre class="literal-block">
+secret file
+secret file direction
+</pre>
+<p>The optional <tt class="docutils literal">direction</tt> parameter enables the use of 4 distinct keys
+(HMAC-send, cipher-encrypt, HMAC-receive, cipher-decrypt), so that each
+data flow direction has a different set of HMAC and cipher keys. This
+has a number of desirable security properties including eliminating
+certain kinds of DoS and message replay attacks.</p>
+<p>When the <tt class="docutils literal">direction</tt> parameter is omitted, 2 keys are used
+bidirectionally, one for HMAC and the other for encryption/decryption.</p>
+<p>The <tt class="docutils literal">direction</tt> parameter should always be complementary on either
+side of the connection, i.e. one side should use <code>0</code> and the other
+should use <code>1</code>, or both sides should omit it altogether.</p>
+<p>The <tt class="docutils literal">direction</tt> parameter requires that <tt class="docutils literal">file</tt> contains a 2048 bit
+key. While pre-1.5 versions of OpenVPN generate 1024 bit key files, any
+version of OpenVPN which supports the <tt class="docutils literal">direction</tt> parameter, will also
+support 2048 bit key file generation using the <tt class="docutils literal"><span class="pre">--genkey</span></tt> option.</p>
+<p>Static key encryption mode has certain advantages, the primary being
+ease of configuration.</p>
+<p>There are no certificates or certificate authorities or complicated
+negotiation handshakes and protocols. The only requirement is that you
+have a pre-existing secure channel with your peer (such as <tt class="docutils literal">ssh</tt>) to
+initially copy the key. This requirement, along with the fact that your
+key never changes unless you manually generate a new one, makes it
+somewhat less secure than TLS mode (see below). If an attacker manages
+to steal your key, everything that was ever encrypted with it is
+compromised. Contrast that to the perfect forward secrecy features of
+TLS mode (using Diffie Hellman key exchange), where even if an attacker
+was able to steal your private key, he would gain no information to help
+him decrypt past sessions.</p>
+<p class="last">Another advantageous aspect of Static Key encryption mode is that it is
+a handshake-free protocol without any distinguishing signature or
+feature (such as a header or protocol handshake sequence) that would
+mark the ciphertext packets as being generated by OpenVPN. Anyone
+eavesdropping on the wire would see nothing but random-looking data.</p>
+</td></tr>
+<tr><td class="option-group" colspan="2">
+<kbd><span class="option">--tran-window <var>n</var></span></kbd></td>
+</tr>
+<tr><td>&nbsp;</td><td>Transition window -- our old key can live this many seconds after a new
+a key renegotiation begins (default <code>3600</code> seconds). This feature
+allows for a graceful transition from old to new key, and removes the key
+renegotiation sequence from the critical path of tunnel data forwarding.</td></tr>
+</tbody>
+</table>
+</div>
+<div class="section" id="client-options">
+<h2>Client Options</h2>
+<p>The client options are used when connecting to an OpenVPN server configured
+to use <tt class="docutils literal"><span class="pre">--server</span></tt>, <tt class="docutils literal"><span class="pre">--server-bridge</span></tt>, or <tt class="docutils literal"><span class="pre">--mode</span> server</tt> in its
+configuration.</p>
+<table class="docutils option-list" frame="void" rules="none">
+<col class="option" />
+<col class="description" />
+<tbody valign="top">
+<tr><td class="option-group" colspan="2">
+<kbd><span class="option">--allow-pull-fqdn</span></kbd></td>
+</tr>
+<tr><td>&nbsp;</td><td>Allow client to pull DNS names from server (rather than being limited to
+IP address) for <tt class="docutils literal"><span class="pre">--ifconfig</span></tt>, <tt class="docutils literal"><span class="pre">--route</span></tt>, and <tt class="docutils literal"><span class="pre">--route-gateway</span></tt>.</td></tr>
+<tr><td class="option-group" colspan="2">
+<kbd><span class="option">--allow-recursive-routing</span></kbd></td>
+</tr>
+<tr><td>&nbsp;</td><td>When this option is set, OpenVPN will not drop incoming tun packets with
+same destination as host.</td></tr>
+<tr><td class="option-group" colspan="2">
+<kbd><span class="option">--auth-token <var>token</var></span></kbd></td>
+</tr>
+<tr><td>&nbsp;</td><td><p class="first">This is not an option to be used directly in any configuration files,
+but rather push this option from a <tt class="docutils literal"><span class="pre">--client-connect</span></tt> script or a
+<tt class="docutils literal"><span class="pre">--plugin</span></tt> which hooks into the <code>OPENVPN_PLUGIN_CLIENT_CONNECT</code>
+or <code>OPENVPN_PLUGIN_CLIENT_CONNECT_V2</code> calls. This option provides a
+possibility to replace the clients password with an authentication token
+during the lifetime of the OpenVPN client.</p>
+<p>Whenever the connection is renegotiated and the
+<tt class="docutils literal"><span class="pre">--auth-user-pass-verify</span></tt> script or <tt class="docutils literal"><span class="pre">--plugin</span></tt> making use of the
+<code>OPENVPN_PLUGIN_AUTH_USER_PASS_VERIFY</code> hook is triggered, it will
+pass over this token as the password instead of the password the user
+provided. The authentication token can only be reset by a full reconnect
+where the server can push new options to the client. The password the
+user entered is never preserved once an authentication token has been
+set. If the OpenVPN server side rejects the authentication token then
+the client will receive an <code>AUTH_FAILED</code> and disconnect.</p>
+<p>The purpose of this is to enable two factor authentication methods, such
+as HOTP or TOTP, to be used without needing to retrieve a new OTP code
+each time the connection is renegotiated. Another use case is to cache
+authentication data on the client without needing to have the users
+password cached in memory during the life time of the session.</p>
+<p>To make use of this feature, the <tt class="docutils literal"><span class="pre">--client-connect</span></tt> script or
+<tt class="docutils literal"><span class="pre">--plugin</span></tt> needs to put</p>
+<pre class="literal-block">
+push &quot;auth-token UNIQUE_TOKEN_VALUE&quot;
+</pre>
+<p>into the file/buffer for dynamic configuration data. This will then make
+the OpenVPN server to push this value to the client, which replaces the
+local password with the <tt class="docutils literal">UNIQUE_TOKEN_VALUE</tt>.</p>
+<p class="last">Newer clients (2.4.7+) will fall back to the original password method
+after a failed auth. Older clients will keep using the token value and
+react according to <tt class="docutils literal"><span class="pre">--auth-retry</span></tt></p>
+</td></tr>
+<tr><td class="option-group" colspan="2">
+<kbd><span class="option">--auth-user-pass</span></kbd></td>
+</tr>
+<tr><td>&nbsp;</td><td><p class="first">Authenticate with server using username/password.</p>
+<p>Valid syntaxes:</p>
+<pre class="literal-block">
+auth-user-pass
+auth-user-pass up
+</pre>
+<p>If <tt class="docutils literal">up</tt> is present, it must be a file containing username/password on 2
+lines. If the password line is missing, OpenVPN will prompt for one.</p>
+<p>If <tt class="docutils literal">up</tt> is omitted, username/password will be prompted from the
+console.</p>
+<p class="last">The server configuration must specify an <tt class="docutils literal"><span class="pre">--auth-user-pass-verify</span></tt>
+script to verify the username/password provided by the client.</p>
+</td></tr>
+<tr><td class="option-group" colspan="2">
+<kbd><span class="option">--auth-retry <var>type</var></span></kbd></td>
+</tr>
+<tr><td>&nbsp;</td><td><p class="first">Controls how OpenVPN responds to username/password verification errors
+such as the client-side response to an <code>AUTH_FAILED</code> message from
+the server or verification failure of the private key password.</p>
+<p>Normally used to prevent auth errors from being fatal on the client
+side, and to permit username/password requeries in case of error.</p>
+<p>An <code>AUTH_FAILED</code> message is generated by the server if the client
+fails <tt class="docutils literal"><span class="pre">--auth-user-pass</span></tt> authentication, or if the server-side
+<tt class="docutils literal"><span class="pre">--client-connect</span></tt> script returns an error status when the client
+tries to connect.</p>
+<p><tt class="docutils literal">type</tt> can be one of:</p>
+<dl class="docutils">
+<dt><code>none</code></dt>
+<dd>Client will exit with a fatal error (this is the default).</dd>
+<dt><code>nointeract</code></dt>
+<dd>Client will retry the connection without requerying
+for an <tt class="docutils literal"><span class="pre">--auth-user-pass</span></tt> username/password. Use this option for
+unattended clients.</dd>
+<dt><code>interact</code></dt>
+<dd>Client will requery for an <tt class="docutils literal"><span class="pre">--auth-user-pass</span></tt>
+username/password and/or private key password before attempting a
+reconnection.</dd>
+</dl>
+<p class="last">Note that while this option cannot be pushed, it can be controlled from
+the management interface.</p>
+</td></tr>
+<tr><td class="option-group">
+<kbd><span class="option">--client</span></kbd></td>
+<td><p class="first">A helper directive designed to simplify the configuration of OpenVPN's
+client mode. This directive is equivalent to:</p>
+<pre class="last literal-block">
+pull
+tls-client
+</pre>
+</td></tr>
+<tr><td class="option-group" colspan="2">
+<kbd><span class="option">--client-nat <var>args</var></span></kbd></td>
+</tr>
+<tr><td>&nbsp;</td><td><p class="first">This pushable client option sets up a stateless one-to-one NAT rule on
+packet addresses (not ports), and is useful in cases where routes or
+ifconfig settings pushed to the client would create an IP numbering
+conflict.</p>
+<p>Examples:</p>
+<pre class="literal-block">
+client-nat snat 192.168.0.0/255.255.0.0
+client-nat dnat 10.64.0.0/255.255.0.0
+</pre>
+<p><tt class="docutils literal">network/netmask</tt> (for example <code>192.168.0.0/255.255.0.0</code>) defines
+the local view of a resource from the client perspective, while
+<tt class="docutils literal">alias/netmask</tt> (for example <code>10.64.0.0/255.255.0.0</code>) defines the
+remote view from the server perspective.</p>
+<p>Use <code>snat</code> (source NAT) for resources owned by the client and
+<code>dnat</code> (destination NAT) for remote resources.</p>
+<p class="last">Set <tt class="docutils literal"><span class="pre">--verb</span> 6</tt> for debugging info showing the transformation of
+src/dest addresses in packets.</p>
+</td></tr>
+<tr><td class="option-group" colspan="2">
+<kbd><span class="option">--connect-retry <var>n</var></span></kbd></td>
+</tr>
+<tr><td>&nbsp;</td><td>Wait <tt class="docutils literal">n</tt> seconds between connection attempts (default <code>5</code>).
+Repeated reconnection attempts are slowed down after 5 retries per
+remote by doubling the wait time after each unsuccessful attempt. An
+optional argument <tt class="docutils literal">max</tt> specifies the maximum value of wait time in
+seconds at which it gets capped (default <code>300</code>).</td></tr>
+<tr><td class="option-group" colspan="2">
+<kbd><span class="option">--connect-retry-max <var>n</var></span></kbd></td>
+</tr>
+<tr><td>&nbsp;</td><td><tt class="docutils literal">n</tt> specifies the number of times each <tt class="docutils literal"><span class="pre">--remote</span></tt> or
+<tt class="docutils literal">&lt;connection&gt;</tt> entry is tried. Specifying <tt class="docutils literal">n</tt> as <code>1</code> would try
+each entry exactly once. A successful connection resets the counter.
+(default <em>unlimited</em>).</td></tr>
+<tr><td class="option-group" colspan="2">
+<kbd><span class="option">--connect-timeout <var>n</var></span></kbd></td>
+</tr>
+<tr><td>&nbsp;</td><td>See <tt class="docutils literal"><span class="pre">--server-poll-timeout</span></tt>.</td></tr>
+<tr><td class="option-group" colspan="2">
+<kbd><span class="option">--explicit-exit-notify <var>n</var></span></kbd></td>
+</tr>
+<tr><td>&nbsp;</td><td><p class="first">In UDP client mode or point-to-point mode, send server/peer an exit
+notification if tunnel is restarted or OpenVPN process is exited. In
+client mode, on exit/restart, this option will tell the server to
+immediately close its client instance object rather than waiting for a
+timeout.</p>
+<p>The <strong>n</strong> parameter (default <code>1</code> if not present) controls the
+maximum number of attempts that the client will try to resend the exit
+notification message.</p>
+<p>In UDP server mode, send <code>RESTART</code> control channel command to
+connected clients. The <tt class="docutils literal">n</tt> parameter (default <code>1</code> if not present)
+controls client behavior. With <tt class="docutils literal">n</tt> = <code>1</code> client will attempt to
+reconnect to the same server, with <tt class="docutils literal">n</tt> = <code>2</code> client will advance
+to the next server.</p>
+<p class="last">OpenVPN will not send any exit notifications unless this option is
+enabled.</p>
+</td></tr>
+<tr><td class="option-group" colspan="2">
+<kbd><span class="option">--inactive <var>args</var></span></kbd></td>
+</tr>
+<tr><td>&nbsp;</td><td><p class="first">Causes OpenVPN to exit after <tt class="docutils literal">n</tt> seconds of inactivity on the TUN/TAP
+device. The time length of inactivity is measured since the last
+incoming or outgoing tunnel packet. The default value is 0 seconds,
+which disables this feature.</p>
+<p>Valid syntaxes:</p>
+<pre class="literal-block">
+inactive n
+inactive n bytes
+</pre>
+<p>If the optional <tt class="docutils literal">bytes</tt> parameter is included, exit if less than
+<tt class="docutils literal">bytes</tt> of combined in/out traffic are produced on the tun/tap device
+in <tt class="docutils literal">n</tt> seconds.</p>
+<p class="last">In any case, OpenVPN's internal ping packets (which are just keepalives)
+and TLS control packets are not considered &quot;activity&quot;, nor are they
+counted as traffic, as they are used internally by OpenVPN and are not
+an indication of actual user activity.</p>
+</td></tr>
+<tr><td class="option-group" colspan="2">
+<kbd><span class="option">--proto-force <var>p</var></span></kbd></td>
+</tr>
+<tr><td>&nbsp;</td><td>When iterating through connection profiles, only consider profiles using
+protocol <tt class="docutils literal">p</tt> (<code>tcp</code> | <code>udp</code>).</td></tr>
+<tr><td class="option-group">
+<kbd><span class="option">--pull</span></kbd></td>
+<td><p class="first">This option must be used on a client which is connecting to a
+multi-client server. It indicates to OpenVPN that it should accept
+options pushed by the server, provided they are part of the legal set of
+pushable options (note that the <tt class="docutils literal"><span class="pre">--pull</span></tt> option is implied by
+<tt class="docutils literal"><span class="pre">--client</span></tt> ).</p>
+<p class="last">In particular, <tt class="docutils literal"><span class="pre">--pull</span></tt> allows the server to push routes to the
+client, so you should not use <tt class="docutils literal"><span class="pre">--pull</span></tt> or <tt class="docutils literal"><span class="pre">--client</span></tt> in situations
+where you don't trust the server to have control over the client's
+routing table.</p>
+</td></tr>
+<tr><td class="option-group" colspan="2">
+<kbd><span class="option">--pull-filter <var>args</var></span></kbd></td>
+</tr>
+<tr><td>&nbsp;</td><td><p class="first">Filter options on the client pushed by the server to the client.</p>
+<p>Valid syntaxes:</p>
+<pre class="literal-block">
+pull-filter accept text
+pull-filter ignore text
+pull-filter reject text
+</pre>
+<p>Filter options received from the server if the option starts with
+<code>text</code>.  The action flag <code>accept</code> allows the option,
+<code>ignore</code> removes it and <code>reject</code> flags an error and triggers
+a <code>SIGUSR1</code> restart. The filters may be specified multiple times,
+and each filter is applied in the order it is specified. The filtering of
+each option stops as soon as a match is found. Unmatched options are accepted
+by default.</p>
+<p>Prefix comparison is used to match <code>text</code> against the received option so
+that</p>
+<pre class="literal-block">
+pull-filter ignore &quot;route&quot;
+</pre>
+<p>would remove all pushed options starting with <tt class="docutils literal">route</tt> which would
+include, for example, <tt class="docutils literal"><span class="pre">route-gateway</span></tt>. Enclose <em>text</em> in quotes to
+embed spaces.</p>
+<pre class="literal-block">
+pull-filter accept &quot;route 192.168.1.&quot;
+pull-filter ignore &quot;route &quot;
+</pre>
+<p>would remove all routes that do not start with <tt class="docutils literal">192.168.1</tt>.</p>
+<p class="last"><em>Note</em> that <code>reject</code> may result in a repeated cycle of failure and
+reconnect, unless multiple remotes are specified and connection to the
+next remote succeeds. To silently ignore an option pushed by the server,
+use <code>ignore</code>.</p>
+</td></tr>
+<tr><td class="option-group">
+<kbd><span class="option">--remote <var>args</var></span></kbd></td>
+<td><p class="first">Remote host name or IP address.  It supports two additional optional
+arguments: <tt class="docutils literal">port</tt> and <tt class="docutils literal">proto</tt>.  On the client, multiple <tt class="docutils literal"><span class="pre">--remote</span></tt>
+options may be specified for redundancy, each referring to a different
+OpenVPN server. Specifying multiple <tt class="docutils literal"><span class="pre">--remote</span></tt> options for this
+purpose is a special case of the more general connection-profile
+feature. See the <tt class="docutils literal">&lt;connection&gt;</tt> documentation below.</p>
+<p>The OpenVPN client will try to connect to a server at <tt class="docutils literal">host:port</tt> in
+the order specified by the list of <tt class="docutils literal"><span class="pre">--remote</span></tt> options.</p>
+<p>Examples:</p>
+<pre class="literal-block">
+remote server.example.net
+remote server.example.net 1194
+remote server.example.net tcp
+</pre>
+<p><tt class="docutils literal">proto</tt> indicates the protocol to use when connecting with the remote,
+and may be <code>tcp</code> or <code>udp</code>.</p>
+<p>For forcing IPv4 or IPv6 connection suffix tcp or udp with 4/6 like
+udp4/udp6/tcp4/tcp6.</p>
+<p>The client will move on to the next host in the list, in the event of
+connection failure. Note that at any given time, the OpenVPN client will
+at most be connected to one server.</p>
+<p>Note that since UDP is connectionless, connection failure is defined by
+the <tt class="docutils literal"><span class="pre">--ping</span></tt> and <tt class="docutils literal"><span class="pre">--ping-restart</span></tt> options.</p>
+<p>Note the following corner case: If you use multiple <tt class="docutils literal"><span class="pre">--remote</span></tt>
+options, AND you are dropping root privileges on the client with
+<tt class="docutils literal"><span class="pre">--user</span></tt> and/or <tt class="docutils literal"><span class="pre">--group</span></tt> AND the client is running a non-Windows
+OS, if the client needs to switch to a different server, and that server
+pushes back different TUN/TAP or route settings, the client may lack the
+necessary privileges to close and reopen the TUN/TAP interface. This
+could cause the client to exit with a fatal error.</p>
+<p>If <tt class="docutils literal"><span class="pre">--remote</span></tt> is unspecified, OpenVPN will listen for packets from any
+IP address, but will not act on those packets unless they pass all
+authentication tests. This requirement for authentication is binding on
+all potential peers, even those from known and supposedly trusted IP
+addresses (it is very easy to forge a source IP address on a UDP
+packet).</p>
+<p>When used in TCP mode, <tt class="docutils literal"><span class="pre">--remote</span></tt> will act as a filter, rejecting
+connections from any host which does not match <tt class="docutils literal">host</tt>.</p>
+<p class="last">If <tt class="docutils literal">host</tt> is a DNS name which resolves to multiple IP addresses,
+OpenVPN will try them in the order that the system getaddrinfo()
+presents them, so priorization and DNS randomization is done by the
+system library. Unless an IP version is forced by the protocol
+specification (4/6 suffix), OpenVPN will try both IPv4 and IPv6
+addresses, in the order getaddrinfo() returns them.</p>
+</td></tr>
+<tr><td class="option-group" colspan="2">
+<kbd><span class="option">--remote-random</span></kbd></td>
+</tr>
+<tr><td>&nbsp;</td><td>When multiple <tt class="docutils literal"><span class="pre">--remote</span></tt> address/ports are specified, or if connection
+profiles are being used, initially randomize the order of the list as a
+kind of basic load-balancing measure.</td></tr>
+<tr><td class="option-group" colspan="2">
+<kbd><span class="option">--remote-random-hostname</span></kbd></td>
+</tr>
+<tr><td>&nbsp;</td><td>Prepend a random string (6 bytes, 12 hex characters) to hostname to
+prevent DNS caching. For example, &quot;foo.bar.gov&quot; would be modified to
+&quot;&lt;random-chars&gt;.foo.bar.gov&quot;.</td></tr>
+<tr><td class="option-group" colspan="2">
+<kbd><span class="option">--resolv-retry <var>n</var></span></kbd></td>
+</tr>
+<tr><td>&nbsp;</td><td><p class="first">If hostname resolve fails for <tt class="docutils literal"><span class="pre">--remote</span></tt>, retry resolve for <tt class="docutils literal">n</tt>
+seconds before failing.</p>
+<p>Set <tt class="docutils literal">n</tt> to &quot;infinite&quot; to retry indefinitely.</p>
+<p class="last">By default, <tt class="docutils literal"><span class="pre">--resolv-retry</span> infinite</tt> is enabled. You can disable by
+setting n=0.</p>
+</td></tr>
+<tr><td class="option-group" colspan="2">
+<kbd><span class="option">--single-session</span></kbd></td>
+</tr>
+<tr><td>&nbsp;</td><td><p class="first">After initially connecting to a remote peer, disallow any new
+connections. Using this option means that a remote peer cannot connect,
+disconnect, and then reconnect.</p>
+<p>If the daemon is reset by a signal or <tt class="docutils literal"><span class="pre">--ping-restart</span></tt>, it will allow
+one new connection.</p>
+<p class="last"><tt class="docutils literal"><span class="pre">--single-session</span></tt> can be used with <tt class="docutils literal"><span class="pre">--ping-exit</span></tt> or <tt class="docutils literal"><span class="pre">--inactive</span></tt>
+to create a single dynamic session that will exit when finished.</p>
+</td></tr>
+<tr><td class="option-group" colspan="2">
+<kbd><span class="option">--server-poll-timeout <var>n</var></span></kbd></td>
+</tr>
+<tr><td>&nbsp;</td><td>When connecting to a remote server do not wait for more than <tt class="docutils literal">n</tt>
+seconds for a response before trying the next server. The default value
+is 120s. This timeout includes proxy and TCP connect timeouts.</td></tr>
+<tr><td class="option-group" colspan="2">
+<kbd><span class="option">--static-challenge <var>args</var></span></kbd></td>
+</tr>
+<tr><td>&nbsp;</td><td><p class="first">Enable static challenge/response protocol</p>
+<p>Valid syntax:</p>
+<pre class="literal-block">
+static-challenge text echo
+</pre>
+<p>The <tt class="docutils literal">text</tt> challenge text is presented to the user which describes what
+information is requested.  The <tt class="docutils literal">echo</tt> flag indicates if the user's
+input should be echoed on the screen.  Valid <tt class="docutils literal">echo</tt> values are
+<code>0</code> or <code>1</code>.</p>
+<p class="last">See management-notes.txt in the OpenVPN distribution for a description of
+the OpenVPN challenge/response protocol.</p>
+</td></tr>
+</tbody>
+</table>
+<table class="docutils option-list" frame="void" rules="none">
+<col class="option" />
+<col class="description" />
+<tbody valign="top">
+<tr><td class="option-group" colspan="2">
+<kbd><span class="option">--show-proxy-settings</span></kbd></td>
+</tr>
+<tr><td>&nbsp;</td><td>Show sensed HTTP or SOCKS proxy settings. Currently, only Windows
+clients support this option.</td></tr>
+<tr><td class="option-group" colspan="2">
+<kbd><span class="option">--http-proxy <var>args</var></span></kbd></td>
+</tr>
+<tr><td>&nbsp;</td><td><p class="first">Connect to remote host through an HTTP proxy.  This requires at least an
+address <tt class="docutils literal">server</tt> and <tt class="docutils literal">port</tt> argument.  If HTTP Proxy-Authenticate
+is required, a file name to an <tt class="docutils literal">authfile</tt> file containing a username
+and password on 2 lines can be given, or <code>stdin</code> to prompt from
+console. Its content can also be specified in the config file with the
+<tt class="docutils literal"><span class="pre">--http-proxy-user-pass</span></tt> option. (See section on inline files)</p>
+<p>The last optional argument is an <tt class="docutils literal"><span class="pre">auth-method</span></tt> which should be one
+of <code>none</code>, <code>basic</code>, or <code>ntlm</code>.</p>
+<p>HTTP Digest authentication is supported as well, but only via the
+<code>auto</code> or <code>auto-nct</code> flags (below).  This must replace
+the <tt class="docutils literal">authfile</tt> argument.</p>
+<p>The <code>auto</code> flag causes OpenVPN to automatically determine the
+<tt class="docutils literal"><span class="pre">auth-method</span></tt> and query stdin or the management interface for
+username/password credentials, if required. This flag exists on OpenVPN
+2.1 or higher.</p>
+<p>The <tt class="docutils literal"><span class="pre">auto-nct</span></tt> flag (no clear-text auth) instructs OpenVPN to
+automatically determine the authentication method, but to reject weak
+authentication protocols such as HTTP Basic Authentication.</p>
+<p>Examples:</p>
+<pre class="last literal-block">
+http-proxy proxy.example.net 3128
+http-proxy proxy.example.net 3128 authfile.txt
+http-proxy proxy.example.net 3128 stdin
+http-proxy proxy.example.net 3128 auto basic
+http-proxy proxy.example.net 3128 auto-nct ntlm
+</pre>
+</td></tr>
+<tr><td class="option-group" colspan="2">
+<kbd><span class="option">--http-proxy-option <var>args</var></span></kbd></td>
+</tr>
+<tr><td>&nbsp;</td><td><p class="first">Set extended HTTP proxy options. Requires an option <tt class="docutils literal">type</tt> as argument
+and an optional <tt class="docutils literal">parameter</tt> to the type.  Repeat to set multiple
+options.</p>
+<dl class="docutils">
+<dt><code>VERSION</code> <tt class="docutils literal">version</tt></dt>
+<dd>Set HTTP version number to <tt class="docutils literal">version</tt> (default <code>1.0</code>).</dd>
+<dt><code>AGENT</code> <tt class="docutils literal"><span class="pre">user-agent</span></tt></dt>
+<dd>Set HTTP &quot;User-Agent&quot; string to <tt class="docutils literal"><span class="pre">user-agent</span></tt>.</dd>
+<dt><code>CUSTOM-HEADER</code> <tt class="docutils literal">name</tt> <tt class="docutils literal">content</tt></dt>
+<dd>Adds the custom Header with <tt class="docutils literal">name</tt> as name and <tt class="docutils literal">content</tt> as
+the content of the custom HTTP header.</dd>
+</dl>
+<p>Examples:</p>
+<pre class="last literal-block">
+http-proxy-option VERSION 1.1
+http-proxy-option AGENT OpenVPN/2.4
+http-proxy-option X-Proxy-Flag some-flags
+</pre>
+</td></tr>
+<tr><td class="option-group" colspan="2">
+<kbd><span class="option">--socks-proxy <var>args</var></span></kbd></td>
+</tr>
+<tr><td>&nbsp;</td><td>Connect to remote host through a Socks5 proxy.  A required <tt class="docutils literal">server</tt>
+argument is needed.  Optionally a <tt class="docutils literal">port</tt> (default <code>1080</code>) and
+<tt class="docutils literal">authfile</tt> can be given.  The <tt class="docutils literal">authfile</tt> is a file containing a
+username and password on 2 lines, or <code>stdin</code> can be used to
+prompt from console.</td></tr>
+</tbody>
+</table>
+</div>
+<div class="section" id="server-options">
+<h2>Server Options</h2>
+<p>Starting with OpenVPN 2.0, a multi-client TCP/UDP server mode is
+supported, and can be enabled with the <tt class="docutils literal"><span class="pre">--mode</span> server</tt> option. In
+server mode, OpenVPN will listen on a single port for incoming client
+connections. All client connections will be routed through a single tun
+or tap interface. This mode is designed for scalability and should be
+able to support hundreds or even thousands of clients on sufficiently
+fast hardware. SSL/TLS authentication must be used in this mode.</p>
+<table class="docutils option-list" frame="void" rules="none">
+<col class="option" />
+<col class="description" />
+<tbody valign="top">
+<tr><td class="option-group" colspan="2">
+<kbd><span class="option">--auth-gen-token <var>args</var></span></kbd></td>
+</tr>
+<tr><td>&nbsp;</td><td><p class="first">Returns an authentication token to successfully authenticated clients.</p>
+<p>Valid syntax:</p>
+<pre class="literal-block">
+auth-gen-token [lifetime] [external-auth]
+</pre>
+<p>After successful user/password authentication, the OpenVPN server will
+with this option generate a temporary authentication token and push that
+to the client. On the following renegotiations, the OpenVPN client will pass
+this token instead of the users password. On the server side the server
+will do the token authentication internally and it will NOT do any
+additional authentications against configured external user/password
+authentication mechanisms.</p>
+<p>The tokens implemented by this mechanism include an initial timestamp and
+a renew timestamp and are secured by HMAC.</p>
+<p>The <tt class="docutils literal">lifetime</tt> argument defines how long the generated token is valid.
+The lifetime is defined in seconds. If lifetime is not set or it is set
+to <code>0</code>, the token will never expire.</p>
+<p>The token will expire either after the configured <tt class="docutils literal">lifetime</tt> of the
+token is reached or after not being renewed for more than 2 *
+<tt class="docutils literal"><span class="pre">reneg-sec</span></tt> seconds. Clients will be sent renewed tokens on every TLS
+renogiation to keep the client's token updated. This is done to
+invalidate a token if a client is disconnected for a sufficently long
+time, while at the same time permitting much longer token lifetimes for
+active clients.</p>
+<p>This feature is useful for environments which are configured to use One
+Time Passwords (OTP) as part of the user/password authentications and
+that authentication mechanism does not implement any auth-token support.</p>
+<p>When the <code>external-auth</code> keyword is present the normal
+authentication method will always be called even if auth-token succeeds.
+Normally other authentications method are skipped if auth-token
+verification suceeds or fails.</p>
+<p>This option postpones this decision to the external authentication
+methods and checks the validity of the account and do other checks.</p>
+<p>In this mode the environment will have a <tt class="docutils literal">session_id</tt> variable that
+holds the session id from auth-gen-token. Also an environment variable
+<tt class="docutils literal">session_state</tt> is present. This variable indicates whether the
+auth-token has succeeded or not. It can have the following values:</p>
+<dl class="docutils">
+<dt><code>Initial</code></dt>
+<dd>No token from client.</dd>
+<dt><code>Authenticated</code></dt>
+<dd>Token is valid and not expired.</dd>
+<dt><code>Expired</code></dt>
+<dd>Token is valid but has expired.</dd>
+<dt><code>Invalid</code></dt>
+<dd>Token is invalid (failed HMAC or wrong length)</dd>
+<dt><code>AuthenticatedEmptyUser</code> / <code>ExpiredEmptyUser</code></dt>
+<dd>The token is not valid with the username sent from the client but
+would be valid (or expired) if we assume an empty username was
+used instead.  These two cases are a workaround for behaviour in
+OpenVPN 3.  If this workaround is not needed these two cases should
+be handled in the same way as <code>Invalid</code>.</dd>
+</dl>
+<p class="last"><strong>Warning:</strong> Use this feature only if you want your authentication
+method called on every verification. Since the external authentication
+is called it needs to also indicate a success or failure of the
+authentication. It is strongly recommended to return an authentication
+failure in the case of the Invalid/Expired auth-token with the
+external-auth option unless the client could authenticate in another
+acceptable way (e.g. client certificate), otherwise returning success
+will lead to authentication bypass (as does returning success on a wrong
+password from a script).</p>
+</td></tr>
+<tr><td class="option-group" colspan="2">
+<kbd><span class="option">--auth-gen-token-secret <var>file</var></span></kbd></td>
+</tr>
+<tr><td>&nbsp;</td><td>Specifies a file that holds a secret for the HMAC used in
+<tt class="docutils literal"><span class="pre">--auth-gen-token</span></tt> If <tt class="docutils literal">file</tt> is not present OpenVPN will generate a
+random secret on startup. This file should be used if auth-token should
+validate after restarting a server or if client should be able to roam
+between multiple OpenVPN servers with their auth-token.</td></tr>
+<tr><td class="option-group" colspan="2">
+<kbd><span class="option">--auth-user-pass-optional</span></kbd></td>
+</tr>
+<tr><td>&nbsp;</td><td>Allow connections by clients that do not specify a username/password.
+Normally, when <tt class="docutils literal"><span class="pre">--auth-user-pass-verify</span></tt> or
+<tt class="docutils literal"><span class="pre">--management-client-auth</span></tt> are specified (or an authentication plugin
+module), the OpenVPN server daemon will require connecting clients to
+specify a username and password. This option makes the submission of a
+username/password by clients optional, passing the responsibility to the
+user-defined authentication module/script to accept or deny the client
+based on other factors (such as the setting of X509 certificate fields).
+When this option is used, and a connecting client does not submit a
+username/password, the user-defined authentication module/script will
+see the username and password as being set to empty strings (&quot;&quot;). The
+authentication module/script MUST have logic to detect this condition
+and respond accordingly.</td></tr>
+<tr><td class="option-group" colspan="2">
+<kbd><span class="option">--ccd-exclusive</span></kbd></td>
+</tr>
+<tr><td>&nbsp;</td><td>Require, as a condition of authentication, that a connecting client has
+a <tt class="docutils literal"><span class="pre">--client-config-dir</span></tt> file.</td></tr>
+<tr><td class="option-group" colspan="2">
+<kbd><span class="option">--client-config-dir <var>dir</var></span></kbd></td>
+</tr>
+<tr><td>&nbsp;</td><td><p class="first">Specify a directory <tt class="docutils literal">dir</tt> for custom client config files. After a
+connecting client has been authenticated, OpenVPN will look in this
+directory for a file having the same name as the client's X509 common
+name. If a matching file exists, it will be opened and parsed for
+client-specific configuration options. If no matching file is found,
+OpenVPN will instead try to open and parse a default file called
+&quot;DEFAULT&quot;, which may be provided but is not required. Note that the
+configuration files must be readable by the OpenVPN process after it has
+dropped it's root privileges.</p>
+<p>This file can specify a fixed IP address for a given client using
+<tt class="docutils literal"><span class="pre">--ifconfig-push</span></tt>, as well as fixed subnets owned by the client using
+<tt class="docutils literal"><span class="pre">--iroute</span></tt>.</p>
+<p>One of the useful properties of this option is that it allows client
+configuration files to be conveniently created, edited, or removed while
+the server is live, without needing to restart the server.</p>
+<p class="last">The following options are legal in a client-specific context: <tt class="docutils literal"><span class="pre">--push</span></tt>,
+<tt class="docutils literal"><span class="pre">--push-reset</span></tt>, <tt class="docutils literal"><span class="pre">--push-remove</span></tt>, <tt class="docutils literal"><span class="pre">--iroute</span></tt>, <tt class="docutils literal"><span class="pre">--ifconfig-push</span></tt>,
+<tt class="docutils literal"><span class="pre">--vlan-pvid</span></tt> and <tt class="docutils literal"><span class="pre">--config</span></tt>.</p>
+</td></tr>
+<tr><td class="option-group" colspan="2">
+<kbd><span class="option">--client-to-client</span></kbd></td>
+</tr>
+<tr><td>&nbsp;</td><td><p class="first">Because the OpenVPN server mode handles multiple clients through a
+single tun or tap interface, it is effectively a router. The
+<tt class="docutils literal"><span class="pre">--client-to-client</span></tt> flag tells OpenVPN to internally route
+client-to-client traffic rather than pushing all client-originating
+traffic to the TUN/TAP interface.</p>
+<p class="last">When this option is used, each client will &quot;see&quot; the other clients which
+are currently connected. Otherwise, each client will only see the
+server. Don't use this option if you want to firewall tunnel traffic
+using custom, per-client rules.</p>
+</td></tr>
+<tr><td class="option-group">
+<kbd><span class="option">--disable</span></kbd></td>
+<td><p class="first">Disable a particular client (based on the common name) from connecting.
+Don't use this option to disable a client due to key or password
+compromise. Use a CRL (certificate revocation list) instead (see the
+<tt class="docutils literal"><span class="pre">--crl-verify</span></tt> option).</p>
+<p class="last">This option must be associated with a specific client instance, which
+means that it must be specified either in a client instance config file
+using <tt class="docutils literal"><span class="pre">--client-config-dir</span></tt> or dynamically generated using a
+<tt class="docutils literal"><span class="pre">--client-connect</span></tt> script.</p>
+</td></tr>
+<tr><td class="option-group" colspan="2">
+<kbd><span class="option">--connect-freq <var>args</var></span></kbd></td>
+</tr>
+<tr><td>&nbsp;</td><td><p class="first">Allow a maximum of <tt class="docutils literal">n</tt> new connections per <tt class="docutils literal">sec</tt> seconds from
+clients.</p>
+<p>Valid syntax:</p>
+<pre class="literal-block">
+connect-freq n sec
+</pre>
+<p>This is designed to contain DoS attacks which flood the server
+with connection requests using certificates which will ultimately fail
+to authenticate.</p>
+<p>This is an imperfect solution however, because in a real DoS scenario,
+legitimate connections might also be refused.</p>
+<p class="last">For the best protection against DoS attacks in server mode, use
+<tt class="docutils literal"><span class="pre">--proto</span> udp</tt> and either <tt class="docutils literal"><span class="pre">--tls-auth</span></tt> or <tt class="docutils literal"><span class="pre">--tls-crypt</span></tt>.</p>
+</td></tr>
+<tr><td class="option-group">
+<kbd><span class="option">--duplicate-cn</span></kbd></td>
+<td>Allow multiple clients with the same common name to concurrently
+connect. In the absence of this option, OpenVPN will disconnect a client
+instance upon connection of a new client having the same common name.</td></tr>
+<tr><td class="option-group" colspan="2">
+<kbd><span class="option">--ifconfig-pool <var>args</var></span></kbd></td>
+</tr>
+<tr><td>&nbsp;</td><td><p class="first">Set aside a pool of subnets to be dynamically allocated to connecting
+clients, similar to a DHCP server.</p>
+<p>Valid syntax:</p>
+<pre class="literal-block">
+ifconfig-pool start-IP end-IP [netmask]
+</pre>
+<p class="last">For tun-style tunnels, each client
+will be given a /30 subnet (for interoperability with Windows clients).
+For tap-style tunnels, individual addresses will be allocated, and the
+optional <tt class="docutils literal">netmask</tt> parameter will also be pushed to clients.</p>
+</td></tr>
+<tr><td class="option-group" colspan="2">
+<kbd><span class="option">--ifconfig-ipv6-pool <var>args</var></span></kbd></td>
+</tr>
+<tr><td>&nbsp;</td><td><p class="first">Specify an IPv6 address pool for dynamic assignment to clients.</p>
+<p>Valid args:</p>
+<pre class="literal-block">
+ifconfig-ipv6-pool ipv6addr/bits
+</pre>
+<p class="last">The pool starts at <tt class="docutils literal">ipv6addr</tt> and matches the offset determined from
+the start of the IPv4 pool.</p>
+</td></tr>
+<tr><td class="option-group" colspan="2">
+<kbd><span class="option">--ifconfig-pool-persist <var>args</var></span></kbd></td>
+</tr>
+<tr><td>&nbsp;</td><td><p class="first">Persist/unpersist ifconfig-pool data to <tt class="docutils literal">file</tt>, at <tt class="docutils literal">seconds</tt>
+intervals (default <code>600</code>), as well as on program startup and shutdown.</p>
+<p>Valid syntax:</p>
+<pre class="literal-block">
+ifconfig-pool-persist file [seconds]
+</pre>
+<p>The goal of this option is to provide a long-term association between
+clients (denoted by their common name) and the virtual IP address
+assigned to them from the ifconfig-pool. Maintaining a long-term
+association is good for clients because it allows them to effectively
+use the <tt class="docutils literal"><span class="pre">--persist-tun</span></tt> option.</p>
+<p><tt class="docutils literal">file</tt> is a comma-delimited ASCII file, formatted as
+<code>&lt;Common-Name&gt;,&lt;IP-address&gt;</code>.</p>
+<p>If <tt class="docutils literal">seconds</tt> = <code>0</code>, <tt class="docutils literal">file</tt> will be treated as read-only. This
+is useful if you would like to treat <tt class="docutils literal">file</tt> as a configuration file.</p>
+<p class="last">Note that the entries in this file are treated by OpenVPN as
+<em>suggestions</em> only, based on past associations between a common name and
+IP address.  They do not guarantee that the given common name will always
+receive the given IP address. If you want guaranteed assignment, use
+<tt class="docutils literal"><span class="pre">--ifconfig-push</span></tt></p>
+</td></tr>
+<tr><td class="option-group" colspan="2">
+<kbd><span class="option">--ifconfig-push <var>args</var></span></kbd></td>
+</tr>
+<tr><td>&nbsp;</td><td><p class="first">Push virtual IP endpoints for client tunnel, overriding the
+<tt class="docutils literal"><span class="pre">--ifconfig-pool</span></tt> dynamic allocation.</p>
+<p>Valid syntax:</p>
+<pre class="literal-block">
+ifconfig-push local remote-netmask [alias]
+</pre>
+<p>The parameters <tt class="docutils literal">local</tt> and <tt class="docutils literal"><span class="pre">remote-netmask</span></tt> are set according to the
+<tt class="docutils literal"><span class="pre">--ifconfig</span></tt> directive which you want to execute on the client machine
+to configure the remote end of the tunnel. Note that the parameters
+<tt class="docutils literal">local</tt> and <tt class="docutils literal"><span class="pre">remote-netmask</span></tt> are from the perspective of the client,
+not the server. They may be DNS names rather than IP addresses, in which
+case they will be resolved on the server at the time of client
+connection.</p>
+<p>The optional <tt class="docutils literal">alias</tt> parameter may be used in cases where NAT causes
+the client view of its local endpoint to differ from the server view. In
+this case <tt class="docutils literal"><span class="pre">local/remote-netmask</span></tt> will refer to the server view while
+<tt class="docutils literal"><span class="pre">alias/remote-netmask</span></tt> will refer to the client view.</p>
+<p>This option must be associated with a specific client instance, which
+means that it must be specified either in a client instance config file
+using <tt class="docutils literal"><span class="pre">--client-config-dir</span></tt> or dynamically generated using a
+<tt class="docutils literal"><span class="pre">--client-connect</span></tt> script.</p>
+<p>Remember also to include a <tt class="docutils literal"><span class="pre">--route</span></tt> directive in the main OpenVPN
+config file which encloses <tt class="docutils literal">local</tt>, so that the kernel will know to
+route it to the server's TUN/TAP interface.</p>
+<p>OpenVPN's internal client IP address selection algorithm works as
+follows:</p>
+<ol class="last arabic simple">
+<li>Use <tt class="docutils literal"><span class="pre">--client-connect</span> script</tt> generated file for static IP
+(first choice).</li>
+<li>Use <tt class="docutils literal"><span class="pre">--client-config-dir</span></tt> file for static IP (next choice).</li>
+<li>Use <tt class="docutils literal"><span class="pre">--ifconfig-pool</span></tt> allocation for dynamic IP (last
+choice).</li>
+</ol>
+</td></tr>
+<tr><td class="option-group" colspan="2">
+<kbd><span class="option">--ifconfig-ipv6-push <var>args</var></span></kbd></td>
+</tr>
+<tr><td>&nbsp;</td><td><p class="first">for <tt class="docutils literal"><span class="pre">--client-config-dir</span></tt> per-client static IPv6 interface
+configuration, see <tt class="docutils literal"><span class="pre">--client-config-dir</span></tt> and <tt class="docutils literal"><span class="pre">--ifconfig-push</span></tt> for
+more details.</p>
+<p>Valid syntax:</p>
+<pre class="last literal-block">
+ifconfig-ipv6-push ipv6addr/bits ipv6remote
+</pre>
+</td></tr>
+<tr><td class="option-group">
+<kbd><span class="option">--inetd <var>args</var></span></kbd></td>
+<td><p class="first">Valid syntaxes:</p>
+<pre class="literal-block">
+inetd
+inetd wait
+inetd nowait
+inetd wait progname
+</pre>
+<p>Use this option when OpenVPN is being run from the inetd or <tt class="docutils literal">xinetd</tt>(8)
+server.</p>
+<p>The <code>wait</code> and <code>nowait</code> option must match what is specified
+in the inetd/xinetd config file. The <code>nowait</code> mode can only be used
+with <tt class="docutils literal"><span class="pre">--proto</span> <span class="pre">tcp-server</span></tt> The default is <code>wait</code>.  The
+<code>nowait</code> mode can be used to instantiate the OpenVPN daemon as a
+classic TCP server, where client connection requests are serviced on a
+single port number. For additional information on this kind of
+configuration, see the OpenVPN FAQ:
+<a class="reference external" href="https://community.openvpn.net/openvpn/wiki/325-openvpn-as-a--forking-tcp-server-which-can-service-multiple-clients-over-a-single-tcp-port">https://community.openvpn.net/openvpn/wiki/325-openvpn-as-a--forking-tcp-server-which-can-service-multiple-clients-over-a-single-tcp-port</a></p>
+<p>This option precludes the use of <tt class="docutils literal"><span class="pre">--daemon</span></tt>, <tt class="docutils literal"><span class="pre">--local</span></tt> or
+<tt class="docutils literal"><span class="pre">--remote</span></tt>.  Note that this option causes message and error output to
+be handled in the same way as the <tt class="docutils literal"><span class="pre">--daemon</span></tt> option. The optional
+<tt class="docutils literal">progname</tt> parameter is also handled exactly as in <tt class="docutils literal"><span class="pre">--daemon</span></tt>.</p>
+<p class="last">Also note that in <tt class="docutils literal">wait</tt> mode, each OpenVPN tunnel requires a separate
+TCP/UDP port and a separate inetd or xinetd entry. See the OpenVPN 1.x
+HOWTO for an example on using OpenVPN with xinetd:
+<a class="reference external" href="https://openvpn.net/community-resources/1xhowto/">https://openvpn.net/community-resources/1xhowto/</a></p>
+</td></tr>
+<tr><td class="option-group">
+<kbd><span class="option">--multihome</span></kbd></td>
+<td><p class="first">Configure a multi-homed UDP server. This option needs to be used when a
+server has more than one IP address (e.g. multiple interfaces, or
+secondary IP addresses), and is not using <tt class="docutils literal"><span class="pre">--local</span></tt> to force binding
+to one specific address only. This option will add some extra lookups to
+the packet path to ensure that the UDP reply packets are always sent
+from the address that the client is talking to. This is not supported on
+all platforms, and it adds more processing, so it's not enabled by
+default.</p>
+<dl class="last docutils">
+<dt><em>Notes:</em></dt>
+<dd><ul class="first last simple">
+<li>This option is only relevant for UDP servers.</li>
+<li>If you do an IPv6+IPv4 dual-stack bind on a Linux machine with
+multiple IPv4 address, connections to IPv4 addresses will not
+work right on kernels before 3.15, due to missing kernel
+support for the IPv4-mapped case (some distributions have
+ported this to earlier kernel versions, though).</li>
+</ul>
+</dd>
+</dl>
+</td></tr>
+<tr><td class="option-group">
+<kbd><span class="option">--iroute <var>args</var></span></kbd></td>
+<td><p class="first">Generate an internal route to a specific client. The <tt class="docutils literal">netmask</tt>
+parameter, if omitted, defaults to <code>255.255.255.255</code>.</p>
+<p>Valid syntax:</p>
+<pre class="literal-block">
+iroute network [netmask]
+</pre>
+<p>This directive can be used to route a fixed subnet from the server to a
+particular client, regardless of where the client is connecting from.
+Remember that you must also add the route to the system routing table as
+well (such as by using the <tt class="docutils literal"><span class="pre">--route</span></tt> directive). The reason why two
+routes are needed is that the <tt class="docutils literal"><span class="pre">--route</span></tt> directive routes the packet
+from the kernel to OpenVPN. Once in OpenVPN, the <tt class="docutils literal"><span class="pre">--iroute</span></tt> directive
+routes to the specific client.</p>
+<p>This option must be specified either in a client instance config file
+using <tt class="docutils literal"><span class="pre">--client-config-dir</span></tt> or dynamically generated using a
+<tt class="docutils literal"><span class="pre">--client-connect</span></tt> script.</p>
+<p class="last">The <tt class="docutils literal"><span class="pre">--iroute</span></tt> directive also has an important interaction with
+<tt class="docutils literal"><span class="pre">--push</span> &quot;route <span class="pre">...&quot;</span></tt>. <tt class="docutils literal"><span class="pre">--iroute</span></tt> essentially defines a subnet which
+is owned by a particular client (we will call this client <em>A</em>). If you
+would like other clients to be able to reach <em>A</em>'s subnet, you can use
+<tt class="docutils literal"><span class="pre">--push</span> &quot;route <span class="pre">...&quot;</span></tt> together with <tt class="docutils literal"><span class="pre">--client-to-client</span></tt> to effect
+this. In order for all clients to see <em>A</em>'s subnet, OpenVPN must push
+this route to all clients EXCEPT for <em>A</em>, since the subnet is already
+owned by <em>A</em>. OpenVPN accomplishes this by not not pushing a route to
+a client if it matches one of the client's iroutes.</p>
+</td></tr>
+<tr><td class="option-group" colspan="2">
+<kbd><span class="option">--iroute-ipv6 <var>args</var></span></kbd></td>
+</tr>
+<tr><td>&nbsp;</td><td><p class="first">for <tt class="docutils literal"><span class="pre">--client-config-dir</span></tt> per-client static IPv6 route configuration,
+see <tt class="docutils literal"><span class="pre">--iroute</span></tt> for more details how to setup and use this, and how
+<tt class="docutils literal"><span class="pre">--iroute</span></tt> and <tt class="docutils literal"><span class="pre">--route</span></tt> interact.</p>
+<p>Valid syntax:</p>
+<pre class="last literal-block">
+iroute-ipv6 ipv6addr/bits
+</pre>
+</td></tr>
+<tr><td class="option-group" colspan="2">
+<kbd><span class="option">--max-clients <var>n</var></span></kbd></td>
+</tr>
+<tr><td>&nbsp;</td><td>Limit server to a maximum of <tt class="docutils literal">n</tt> concurrent clients.</td></tr>
+<tr><td class="option-group" colspan="2">
+<kbd><span class="option">--max-routes-per-client <var>n</var></span></kbd></td>
+</tr>
+<tr><td>&nbsp;</td><td><p class="first">Allow a maximum of <tt class="docutils literal">n</tt> internal routes per client (default
+<code>256</code>). This is designed to help contain DoS attacks where an
+authenticated client floods the server with packets appearing to come
+from many unique MAC addresses, forcing the server to deplete virtual
+memory as its internal routing table expands. This directive can be used
+in a <tt class="docutils literal"><span class="pre">--client-config-dir</span></tt> file or auto-generated by a
+<tt class="docutils literal"><span class="pre">--client-connect</span></tt> script to override the global value for a particular
+client.</p>
+<p class="last">Note that this directive affects OpenVPN's internal routing table, not
+the kernel routing table.</p>
+</td></tr>
+<tr><td class="option-group">
+<kbd><span class="option">--opt-verify</span></kbd></td>
+<td><p class="first">Clients that connect with options that are incompatible with those of the
+server will be disconnected.</p>
+<p>Options that will be compared for compatibility include <tt class="docutils literal"><span class="pre">dev-type</span></tt>,
+<tt class="docutils literal"><span class="pre">link-mtu</span></tt>, <tt class="docutils literal"><span class="pre">tun-mtu</span></tt>, <tt class="docutils literal">proto</tt>, <tt class="docutils literal">ifconfig</tt>,
+<tt class="docutils literal"><span class="pre">comp-lzo</span></tt>, <tt class="docutils literal">fragment</tt>, <tt class="docutils literal">keydir</tt>, <tt class="docutils literal">cipher</tt>,
+<tt class="docutils literal">auth</tt>, <tt class="docutils literal">keysize</tt>, <tt class="docutils literal">secret</tt>, <tt class="docutils literal"><span class="pre">no-replay</span></tt>,
+<tt class="docutils literal"><span class="pre">tls-auth</span></tt>, <tt class="docutils literal"><span class="pre">key-method</span></tt>, <tt class="docutils literal"><span class="pre">tls-server</span></tt>
+and <tt class="docutils literal"><span class="pre">tls-client</span></tt>.</p>
+<p class="last">This option requires that <tt class="docutils literal"><span class="pre">--disable-occ</span></tt> NOT be used.</p>
+</td></tr>
+<tr><td class="option-group" colspan="2">
+<kbd><span class="option">--port-share <var>args</var></span></kbd></td>
+</tr>
+<tr><td>&nbsp;</td><td><p class="first">Share OpenVPN TCP with another service</p>
+<p>Valid syntax:</p>
+<pre class="literal-block">
+port-share host port [dir]
+</pre>
+<p>When run in TCP server mode, share the OpenVPN port with another
+application, such as an HTTPS server. If OpenVPN senses a connection to
+its port which is using a non-OpenVPN protocol, it will proxy the
+connection to the server at <tt class="docutils literal">host</tt>:<tt class="docutils literal">port</tt>. Currently only designed to
+work with HTTP/HTTPS, though it would be theoretically possible to
+extend to other protocols such as ssh.</p>
+<p><tt class="docutils literal">dir</tt> specifies an optional directory where a temporary file with name
+N containing content C will be dynamically generated for each proxy
+connection, where N is the source IP:port of the client connection and C
+is the source IP:port of the connection to the proxy receiver. This
+directory can be used as a dictionary by the proxy receiver to determine
+the origin of the connection. Each generated file will be automatically
+deleted when the proxied connection is torn down.</p>
+<p class="last">Not implemented on Windows.</p>
+</td></tr>
+<tr><td class="option-group">
+<kbd><span class="option">--push <var>option</var></span></kbd></td>
+<td><p class="first">Push a config file option back to the client for remote execution. Note
+that <tt class="docutils literal">option</tt> must be enclosed in double quotes (<code>&quot;&quot;</code>). The
+client must specify <tt class="docutils literal"><span class="pre">--pull</span></tt> in its config file. The set of options
+which can be pushed is limited by both feasibility and security. Some
+options such as those which would execute scripts are banned, since they
+would effectively allow a compromised server to execute arbitrary code
+on the client. Other options such as TLS or MTU parameters cannot be
+pushed because the client needs to know them before the connection to the
+server can be initiated.</p>
+<p class="last">This is a partial list of options which can currently be pushed:
+<tt class="docutils literal"><span class="pre">--route</span></tt>, <tt class="docutils literal"><span class="pre">--route-gateway</span></tt>, <tt class="docutils literal"><span class="pre">--route-delay</span></tt>,
+<tt class="docutils literal"><span class="pre">--redirect-gateway</span></tt>, <tt class="docutils literal"><span class="pre">--ip-win32</span></tt>, <tt class="docutils literal"><span class="pre">--dhcp-option</span></tt>,
+<tt class="docutils literal"><span class="pre">--inactive</span></tt>, <tt class="docutils literal"><span class="pre">--ping</span></tt>, <tt class="docutils literal"><span class="pre">--ping-exit</span></tt>, <tt class="docutils literal"><span class="pre">--ping-restart</span></tt>,
+<tt class="docutils literal"><span class="pre">--setenv</span></tt>, <tt class="docutils literal"><span class="pre">--auth-token</span></tt>, <tt class="docutils literal"><span class="pre">--persist-key</span></tt>, <tt class="docutils literal"><span class="pre">--persist-tun</span></tt>,
+<tt class="docutils literal"><span class="pre">--echo</span></tt>, <tt class="docutils literal"><span class="pre">--comp-lzo</span></tt>, <tt class="docutils literal"><span class="pre">--socket-flags</span></tt>, <tt class="docutils literal"><span class="pre">--sndbuf</span></tt>,
+<tt class="docutils literal"><span class="pre">--rcvbuf</span></tt></p>
+</td></tr>
+<tr><td class="option-group" colspan="2">
+<kbd><span class="option">--push-peer-info</span></kbd></td>
+</tr>
+<tr><td>&nbsp;</td><td><p class="first">Push additional information about the client to server. The following
+data is always pushed to the server:</p>
+<dl class="docutils">
+<dt><code>IV_VER=&lt;version&gt;</code></dt>
+<dd>The client OpenVPN version</dd>
+<dt><code>IV_PLAT=[linux|solaris|openbsd|mac|netbsd|freebsd|win]</code></dt>
+<dd>The client OS platform</dd>
+<dt><code>IV_LZO_STUB=1</code></dt>
+<dd>If client was built with LZO stub capability</dd>
+<dt><code>IV_LZ4=1</code></dt>
+<dd>If the client supports LZ4 compressions.</dd>
+<dt><code>IV_PROTO</code></dt>
+<dd><p class="first">Details about protocol extensions that the peer supports. The
+variable is a bitfield and the bits are defined as follows
+(starting a bit 0 for the first (unused) bit:</p>
+<ul class="last simple">
+<li>bit 1: The peer supports peer-id floating mechanism</li>
+<li>bit 2: The client expects a push-reply and the server may
+send this reply without waiting for a push-request first.</li>
+</ul>
+</dd>
+<dt><code>IV_NCP=2</code></dt>
+<dd>Negotiable ciphers, client supports <tt class="docutils literal"><span class="pre">--cipher</span></tt> pushed by
+the server, a value of 2 or greater indicates client supports
+<em>AES-GCM-128</em> and <em>AES-GCM-256</em>.</dd>
+<dt><code>IV_CIPHERS=&lt;ncp-ciphers&gt;</code></dt>
+<dd>The client announces the list of supported ciphers configured with the
+<tt class="docutils literal"><span class="pre">--data-ciphers</span></tt> option to the server.</dd>
+<dt><code>IV_GUI_VER=&lt;gui_id&gt; &lt;version&gt;</code></dt>
+<dd>The UI version of a UI if one is running, for example
+<code>de.blinkt.openvpn 0.5.47</code> for the Android app.</dd>
+</dl>
+<p>When <tt class="docutils literal"><span class="pre">--push-peer-info</span></tt> is enabled the additional information consists
+of the following data:</p>
+<dl class="last docutils">
+<dt><code>IV_HWADDR=&lt;mac address&gt;</code></dt>
+<dd>The MAC address of clients default gateway</dd>
+<dt><code>IV_SSL=&lt;version string&gt;</code></dt>
+<dd>The ssl version used by the client, e.g.
+<code>OpenSSL 1.0.2f 28 Jan 2016</code>.</dd>
+<dt><code>IV_PLAT_VER=x.y</code></dt>
+<dd>The version of the operating system, e.g. 6.1 for Windows 7.</dd>
+<dt><code>UV_&lt;name&gt;=&lt;value&gt;</code></dt>
+<dd>Client environment variables whose names start with
+<code>UV_</code></dd>
+</dl>
+</td></tr>
+<tr><td class="option-group" colspan="2">
+<kbd><span class="option">--push-remove <var>opt</var></span></kbd></td>
+</tr>
+<tr><td>&nbsp;</td><td><p class="first">Selectively remove all <tt class="docutils literal"><span class="pre">--push</span></tt> options matching &quot;opt&quot; from the option
+list for a client. <tt class="docutils literal">opt</tt> is matched as a substring against the whole
+option string to-be-pushed to the client, so <tt class="docutils literal"><span class="pre">--push-remove</span> route</tt>
+would remove all <tt class="docutils literal"><span class="pre">--push</span> route ...</tt> and <tt class="docutils literal"><span class="pre">--push</span> <span class="pre">route-ipv6</span> ...</tt>
+statements, while <tt class="docutils literal"><span class="pre">--push-remove</span> <span class="pre">&quot;route-ipv6</span> 2001:&quot;</tt> would only remove
+IPv6 routes for <code>2001:...</code> networks.</p>
+<p><tt class="docutils literal"><span class="pre">--push-remove</span></tt> can only be used in a client-specific context, like in
+a <tt class="docutils literal"><span class="pre">--client-config-dir</span></tt> file, or <tt class="docutils literal"><span class="pre">--client-connect</span></tt> script or plugin
+-- similar to <tt class="docutils literal"><span class="pre">--push-reset</span></tt>, just more selective.</p>
+<p><em>NOTE</em>: to <em>change</em> an option, <tt class="docutils literal"><span class="pre">--push-remove</span></tt> can be used to first
+remove the old value, and then add a new <tt class="docutils literal"><span class="pre">--push</span></tt> option with the new
+value.</p>
+<p class="last"><em>NOTE 2</em>: due to implementation details, 'ifconfig' and 'ifconfig-ipv6'
+can only be removed with an exact match on the option (
+<code>push-remove ifconfig</code>), no substring matching and no matching on
+the IPv4/IPv6 address argument is possible.</p>
+</td></tr>
+<tr><td class="option-group">
+<kbd><span class="option">--push-reset</span></kbd></td>
+<td>Don't inherit the global push list for a specific client instance.
+Specify this option in a client-specific context such as with a
+<tt class="docutils literal"><span class="pre">--client-config-dir</span></tt> configuration file. This option will ignore
+<tt class="docutils literal"><span class="pre">--push</span></tt> options at the global config file level.</td></tr>
+<tr><td class="option-group">
+<kbd><span class="option">--server <var>args</var></span></kbd></td>
+<td><p class="first">A helper directive designed to simplify the configuration of OpenVPN's
+server mode. This directive will set up an OpenVPN server which will
+allocate addresses to clients out of the given network/netmask. The
+server itself will take the <code>.1</code> address of the given network for
+use as the server-side endpoint of the local TUN/TAP interface. If the
+optional <code>nopool</code> flag is given, no dynamic IP address pool will
+prepared for VPN clients.</p>
+<p>Valid syntax:</p>
+<pre class="literal-block">
+server network netmask [nopool]
+</pre>
+<p>For example, <tt class="docutils literal"><span class="pre">--server</span> 10.8.0.0 255.255.255.0</tt> expands as follows:</p>
+<pre class="literal-block">
+mode server
+tls-server
+push &quot;topology [topology]&quot;
+
+if dev tun AND (topology == net30 OR topology == p2p):
+  ifconfig 10.8.0.1 10.8.0.2
+  if !nopool:
+    ifconfig-pool 10.8.0.4 10.8.0.251
+  route 10.8.0.0 255.255.255.0
+  if client-to-client:
+    push &quot;route 10.8.0.0 255.255.255.0&quot;
+  else if topology == net30:
+    push &quot;route 10.8.0.1&quot;
+
+if dev tap OR (dev tun AND topology == subnet):
+  ifconfig 10.8.0.1 255.255.255.0
+  if !nopool:
+    ifconfig-pool 10.8.0.2 10.8.0.253 255.255.255.0
+  push &quot;route-gateway 10.8.0.1&quot;
+  if route-gateway unset:
+    route-gateway 10.8.0.2
+</pre>
+<p class="last">Don't use <tt class="docutils literal"><span class="pre">--server</span></tt> if you are ethernet bridging. Use
+<tt class="docutils literal"><span class="pre">--server-bridge</span></tt> instead.</p>
+</td></tr>
+<tr><td class="option-group" colspan="2">
+<kbd><span class="option">--server-bridge <var>args</var></span></kbd></td>
+</tr>
+<tr><td>&nbsp;</td><td><p class="first">A helper directive similar to <tt class="docutils literal"><span class="pre">--server</span></tt> which is designed to simplify
+the configuration of OpenVPN's server mode in ethernet bridging
+configurations.</p>
+<p>Valid syntaxes:</p>
+<pre class="literal-block">
+server-bridge gateway netmask pool-start-IP pool-end-IP
+server-bridge [nogw]
+</pre>
+<p>If <tt class="docutils literal"><span class="pre">--server-bridge</span></tt> is used without any parameters, it will enable a
+DHCP-proxy mode, where connecting OpenVPN clients will receive an IP
+address for their TAP adapter from the DHCP server running on the
+OpenVPN server-side LAN. Note that only clients that support the binding
+of a DHCP client with the TAP adapter (such as Windows) can support this
+mode. The optional <code>nogw</code> flag (advanced) indicates that gateway
+information should not be pushed to the client.</p>
+<p>To configure ethernet bridging, you must first use your OS's bridging
+capability to bridge the TAP interface with the ethernet NIC interface.
+For example, on Linux this is done with the <code>brctl</code> tool, and with
+Windows XP it is done in the Network Connections Panel by selecting the
+ethernet and TAP adapters and right-clicking on &quot;Bridge Connections&quot;.</p>
+<p>Next you you must manually set the IP/netmask on the bridge interface.
+The <tt class="docutils literal">gateway</tt> and <tt class="docutils literal">netmask</tt> parameters to <tt class="docutils literal"><span class="pre">--server-bridge</span></tt> can be
+set to either the IP/netmask of the bridge interface, or the IP/netmask
+of the default gateway/router on the bridged subnet.</p>
+<p>Finally, set aside a IP range in the bridged subnet, denoted by
+<tt class="docutils literal"><span class="pre">pool-start-IP</span></tt> and <tt class="docutils literal"><span class="pre">pool-end-IP</span></tt>, for OpenVPN to allocate to
+connecting clients.</p>
+<p>For example, <tt class="docutils literal"><span class="pre">server-bridge</span> 10.8.0.4 255.255.255.0 10.8.0.128
+10.8.0.254</tt> expands as follows:</p>
+<pre class="literal-block">
+mode server
+tls-server
+
+ifconfig-pool 10.8.0.128 10.8.0.254 255.255.255.0
+push &quot;route-gateway 10.8.0.4&quot;
+</pre>
+<p>In another example, <tt class="docutils literal"><span class="pre">--server-bridge</span></tt> (without parameters) expands as
+follows:</p>
+<pre class="literal-block">
+mode server
+tls-server
+
+push &quot;route-gateway dhcp&quot;
+</pre>
+<p>Or <tt class="docutils literal"><span class="pre">--server-bridge</span> nogw</tt> expands as follows:</p>
+<pre class="last literal-block">
+mode server
+tls-server
+</pre>
+</td></tr>
+<tr><td class="option-group" colspan="2">
+<kbd><span class="option">--stale-routes-check <var>args</var></span></kbd></td>
+</tr>
+<tr><td>&nbsp;</td><td><p class="first">Remove routes which haven't had activity for <tt class="docutils literal">n</tt> seconds (i.e. the ageing
+time).  This check is run every <tt class="docutils literal">t</tt> seconds (i.e. check interval).</p>
+<p>Valid syntax:</p>
+<pre class="literal-block">
+stale-routes-check n [t]
+</pre>
+<p>If <tt class="docutils literal">t</tt> is not present it defaults to <tt class="docutils literal">n</tt>.</p>
+<p class="last">This option helps to keep the dynamic routing table small. See also
+<tt class="docutils literal"><span class="pre">--max-routes-per-client</span></tt></p>
+</td></tr>
+<tr><td class="option-group" colspan="2">
+<kbd><span class="option">--username-as-common-name</span></kbd></td>
+</tr>
+<tr><td>&nbsp;</td><td>For <tt class="docutils literal"><span class="pre">--auth-user-pass-verify</span></tt> authentication, use the authenticated
+username as the common name, rather than the common name from the client
+cert.</td></tr>
+<tr><td class="option-group" colspan="2">
+<kbd><span class="option">--verify-client-cert <var>mode</var></span></kbd></td>
+</tr>
+<tr><td>&nbsp;</td><td><p class="first">Specify whether the client is required to supply a valid certificate.</p>
+<p>Possible <tt class="docutils literal">mode</tt> options are:</p>
+<dl class="docutils">
+<dt><code>none</code></dt>
+<dd><p class="first">A client certificate is not required. the client needs to
+authenticate using username/password only. Be aware that using this
+directive is less secure than requiring certificates from all
+clients.</p>
+<p>If you use this directive, the entire responsibility of authentication
+will rest on your <tt class="docutils literal"><span class="pre">--auth-user-pass-verify</span></tt> script, so keep in mind
+that bugs in your script could potentially compromise the security of
+your VPN.</p>
+<p class="last"><tt class="docutils literal"><span class="pre">--verify-client-cert</span> none</tt> is functionally equivalent to
+<tt class="docutils literal"><span class="pre">--client-cert-not-required</span></tt>.</p>
+</dd>
+<dt><code>optional</code></dt>
+<dd><p class="first">A client may present a certificate but it is not required to do so.
+When using this directive, you should also use a
+<tt class="docutils literal"><span class="pre">--auth-user-pass-verify</span></tt> script to ensure that clients are
+authenticated using a certificate, a username and password, or
+possibly even both.</p>
+<p class="last">Again, the entire responsibility of authentication will rest on your
+<tt class="docutils literal"><span class="pre">--auth-user-pass-verify</span></tt> script, so keep in mind that bugs in your
+script could potentially compromise the security of your VPN.</p>
+</dd>
+<dt><code>require</code></dt>
+<dd>This is the default option. A client is required to present a
+certificate, otherwise VPN access is refused.</dd>
+</dl>
+<p class="last">If you don't use this directive (or use <tt class="docutils literal"><span class="pre">--verify-client-cert</span> require</tt>)
+but you also specify an <tt class="docutils literal"><span class="pre">--auth-user-pass-verify</span></tt> script, then OpenVPN
+will perform double authentication. The client certificate verification
+AND the <tt class="docutils literal"><span class="pre">--auth-user-pass-verify</span></tt> script will need to succeed in order
+for a client to be authenticated and accepted onto the VPN.</p>
+</td></tr>
+<tr><td class="option-group">
+<kbd><span class="option">--vlan-tagging</span></kbd></td>
+<td><p class="first">Server-only option. Turns the OpenVPN server instance into a switch that
+understands VLAN-tagging, based on IEEE 802.1Q.</p>
+<p>The server TAP device and each of the connecting clients is seen as a
+port of the switch. All client ports are in untagged mode and the server
+TAP device is VLAN-tagged, untagged or accepts both, depending on the
+<tt class="docutils literal"><span class="pre">--vlan-accept</span></tt> setting.</p>
+<p>Ethernet frames with a prepended 802.1Q tag are called &quot;tagged&quot;. If the
+VLAN Identifier (VID) field in such a tag is non-zero, the frame is
+called &quot;VLAN-tagged&quot;. If the VID is zero, but the Priority Control Point
+(PCP) field is non-zero, the frame is called &quot;prio-tagged&quot;. If there is
+no 802.1Q tag, the frame is &quot;untagged&quot;.</p>
+<p>Using the <tt class="docutils literal"><span class="pre">--vlan-pvid</span> v</tt> option once per client (see
+--client-config-dir), each port can be associated with a certain VID.
+Packets can only be forwarded between ports having the same VID.
+Therefore, clients with differing VIDs are completely separated from
+one-another, even if <tt class="docutils literal"><span class="pre">--client-to-client</span></tt> is activated.</p>
+<p>The packet filtering takes place in the OpenVPN server. Clients should
+not have any VLAN tagging configuration applied.</p>
+<p>The <tt class="docutils literal"><span class="pre">--vlan-tagging</span></tt> option is off by default. While turned off,
+OpenVPN accepts any Ethernet frame and does not perform any special
+processing for VLAN-tagged packets.</p>
+<p class="last">This option can only be activated in <tt class="docutils literal"><span class="pre">--dev</span> tap mode</tt>.</p>
+</td></tr>
+<tr><td class="option-group" colspan="2">
+<kbd><span class="option">--vlan-accept <var>args</var></span></kbd></td>
+</tr>
+<tr><td>&nbsp;</td><td><p class="first">Configure the VLAN tagging policy for the server TAP device.</p>
+<p>Valid syntax:</p>
+<pre class="literal-block">
+vlan-accept  all|tagged|untagged
+</pre>
+<p>The following modes are available:</p>
+<dl class="docutils">
+<dt><code>tagged</code></dt>
+<dd>Admit only VLAN-tagged frames. Only VLAN-tagged packets are accepted,
+while untagged or priority-tagged packets are dropped when entering
+the server TAP device.</dd>
+<dt><code>untagged</code></dt>
+<dd>Admit only untagged and prio-tagged frames.  VLAN-tagged packets are
+not accepted, while untagged or priority-tagged packets entering the
+server TAP device are tagged with the value configured for the global
+<tt class="docutils literal"><span class="pre">--vlan-pvid</span></tt> setting.</dd>
+<dt><code>all</code> (default)</dt>
+<dd>Admit all frames.  All packets are admitted and then treated like
+untagged or tagged mode respectively.</dd>
+<dt><em>Note</em>:</dt>
+<dd>Some vendors refer to switch ports running in <code>tagged</code> mode
+as &quot;trunk ports&quot; and switch ports running in <code>untagged</code> mode
+as &quot;access ports&quot;.</dd>
+</dl>
+<p>Packets forwarded from clients to the server are VLAN-tagged with the
+originating client's PVID, unless the VID matches the global
+<tt class="docutils literal"><span class="pre">--vlan-pvid</span></tt>, in which case the tag is removed.</p>
+<p class="last">If no <em>PVID</em> is configured for a given client (see --vlan-pvid) packets
+are tagged with 1 by default.</p>
+</td></tr>
+<tr><td class="option-group">
+<kbd><span class="option">--vlan-pvid <var>v</var></span></kbd></td>
+<td><p class="first">Specifies which VLAN identifier a &quot;port&quot; is associated with. Only valid
+when <tt class="docutils literal"><span class="pre">--vlan-tagging</span></tt> is speficied.</p>
+<p>In the client context, the setting specifies which VLAN ID a client is
+associated with. In the global context, the VLAN ID of the server TAP
+device is set. The latter only makes sense for <tt class="docutils literal"><span class="pre">--vlan-accept</span>
+untagged</tt> and <tt class="docutils literal"><span class="pre">--vlan-accept</span> all</tt> modes.</p>
+<p>Valid values for <tt class="docutils literal">v</tt> go from <code>1</code> through to <code>4094</code>. The
+global value defaults to <code>1</code>. If no <tt class="docutils literal"><span class="pre">--vlan-pvid</span></tt> is specified in
+the client context, the global value is inherited.</p>
+<p class="last">In some switch implementations, the <em>PVID</em> is also referred to as &quot;Native
+VLAN&quot;.</p>
+</td></tr>
+</tbody>
+</table>
+</div>
+</div>
+<div class="section" id="encryption-options">
+<h1>Encryption Options</h1>
+<div class="section" id="ssl-library-information">
+<h2>SSL Library information</h2>
+<table class="docutils option-list" frame="void" rules="none">
+<col class="option" />
+<col class="description" />
+<tbody valign="top">
+<tr><td class="option-group">
+<kbd><span class="option">--show-ciphers</span></kbd></td>
+<td>(Standalone) Show all cipher algorithms to use with the <tt class="docutils literal"><span class="pre">--cipher</span></tt>
+option.</td></tr>
+<tr><td class="option-group">
+<kbd><span class="option">--show-digests</span></kbd></td>
+<td>(Standalone) Show all message digest algorithms to use with the
+<tt class="docutils literal"><span class="pre">--auth</span></tt> option.</td></tr>
+<tr><td class="option-group">
+<kbd><span class="option">--show-tls</span></kbd></td>
+<td><p class="first">(Standalone) Show all TLS ciphers supported by the crypto library.
+OpenVPN uses TLS to secure the control channel, over which the keys that
+are used to protect the actual VPN traffic are exchanged. The TLS
+ciphers will be sorted from highest preference (most secure) to lowest.</p>
+<p class="last">Be aware that whether a cipher suite in this list can actually work
+depends on the specific setup of both peers (e.g. both peers must
+support the cipher, and an ECDSA cipher suite will not work if you are
+using an RSA certificate, etc.).</p>
+</td></tr>
+<tr><td class="option-group">
+<kbd><span class="option">--show-engines</span></kbd></td>
+<td>(Standalone) Show currently available hardware-based crypto acceleration
+engines supported by the OpenSSL library.</td></tr>
+<tr><td class="option-group">
+<kbd><span class="option">--show-groups</span></kbd></td>
+<td>(Standalone) Show all available elliptic curves/groups to use with the
+<tt class="docutils literal"><span class="pre">--ecdh-curve</span></tt> and <tt class="docutils literal"><span class="pre">tls-groups</span></tt> options.</td></tr>
+</tbody>
+</table>
+</div>
+<div class="section" id="generating-key-material">
+<h2>Generating key material</h2>
+<table class="docutils option-list" frame="void" rules="none">
+<col class="option" />
+<col class="description" />
+<tbody valign="top">
+<tr><td class="option-group">
+<kbd><span class="option">--genkey <var>args</var></span></kbd></td>
+<td><p class="first">(Standalone) Generate a key to be used of the type keytype. if keyfile
+is left out or empty the key will be output on stdout. See the following
+sections for the different keytypes.</p>
+<p>Valid syntax:</p>
+<pre class="literal-block">
+--genkey keytype keyfile
+</pre>
+<p>Valid keytype arguments are:</p>
+<p><code>secret</code>                Standard OpenVPN shared secret keys</p>
+<p><code>tls-crypt</code>             Alias for <code>secret</code></p>
+<p><code>tls-auth</code>              Alias for <code>secret</code></p>
+<p><code>auth-token</code>            Key used for <tt class="docutils literal"><span class="pre">--auth-gen-token-key</span></tt></p>
+<p><code>tls-crypt-v2-server</code>   TLS Crypt v2 server key</p>
+<p><code>tls-crypt-v2-client</code>   TLS Crypt v2 client key</p>
+<p>Examples:</p>
+<pre class="literal-block">
+$ openvpn --genkey secret shared.key
+$ openvpn --genkey tls-crypt shared.key
+$ openvpn --genkey tls-auth shared.key
+$ openvpn --genkey tls-crypt-v2-server v2crypt-server.key
+$ openvpn --tls-crypt-v2 v2crypt-server.key --genkey tls-crypt-v2-client v2crypt-client-1.key
+</pre>
+<ul class="last">
+<li><p class="first">Generating <em>Shared Secret Keys</em>
+Generate a shared secret, for use with the <tt class="docutils literal"><span class="pre">--secret</span></tt>, <tt class="docutils literal"><span class="pre">--tls-auth</span></tt>
+or <tt class="docutils literal"><span class="pre">--tls-crypt</span></tt> options.</p>
+<p>Syntax:</p>
+<pre class="literal-block">
+$ openvpn --genkey secret|tls-crypt|tls-auth keyfile
+</pre>
+<p>The key is saved in <tt class="docutils literal">keyfile</tt>. All three variants (<tt class="docutils literal"><span class="pre">--secret</span></tt>,
+<tt class="docutils literal"><span class="pre">tls-crypt</span></tt> and <tt class="docutils literal"><span class="pre">tls-auth</span></tt>) generate the same type of key. The
+aliases are added for convenience.</p>
+<p>If using this for <tt class="docutils literal"><span class="pre">--secret</span></tt>, this file must be shared with the peer
+over a pre-existing secure channel such as <tt class="docutils literal">scp</tt>(1).</p>
+</li>
+<li><p class="first">Generating <em>TLS Crypt v2 Server key</em>
+Generate a <tt class="docutils literal"><span class="pre">--tls-crypt-v2</span></tt> key to be used by an OpenVPN server.
+The key is stored in <tt class="docutils literal">keyfile</tt>.</p>
+<p>Syntax:</p>
+<pre class="literal-block">
+--genkey tls-crypt-v2-server keyfile
+</pre>
+</li>
+<li><p class="first">Generating <em>TLS Crypt v2 Client key</em>
+Generate a --tls-crypt-v2 key to be used by OpenVPN clients.  The
+key is stored in <tt class="docutils literal">keyfile</tt>.</p>
+<p>Syntax</p>
+<pre class="literal-block">
+--genkey tls-crypt-v2-client keyfile [metadata]
+</pre>
+<p>If supplied, include the supplied <tt class="docutils literal">metadata</tt> in the wrapped client
+key. This metadata must be supplied in base64-encoded form. The
+metadata must be at most 735 bytes long (980 bytes in base64).</p>
+<p>If no metadata is supplied, OpenVPN will use a 64-bit unix timestamp
+representing the current time in UTC, encoded in network order, as
+metadata for the generated key.</p>
+<p>A tls-crypt-v2 client key is wrapped using a server key. To generate a
+client key, the user must therefore supply the server key using the
+<tt class="docutils literal"><span class="pre">--tls-crypt-v2</span></tt> option.</p>
+<p>Servers can use <tt class="docutils literal"><span class="pre">--tls-crypt-v2-verify</span></tt> to specify a metadata
+verification command.</p>
+</li>
+<li><p class="first">Generate <em>Authentication Token key</em>
+Generate a new secret that can be used with <strong>--auth-gen-token-secret</strong></p>
+<p>Syntax:</p>
+<pre class="literal-block">
+--genkey auth-token [keyfile]
+</pre>
+<dl class="docutils">
+<dt><em>Note:</em></dt>
+<dd><p class="first last">This file should be kept secret to the server as anyone that has
+access to this file will be able to generate auth tokens that the
+OpenVPN server will accept as valid.</p>
+</dd>
+</dl>
+</li>
+</ul>
+</td></tr>
+</tbody>
+</table>
+</div>
+<div class="section" id="data-channel-renegotiation">
+<h2>Data Channel Renegotiation</h2>
+<p>When running OpenVPN in client/server mode, the data channel will use a
+separate ephemeral encryption key which is rotated at regular intervals.</p>
+<table class="docutils option-list" frame="void" rules="none">
+<col class="option" />
+<col class="description" />
+<tbody valign="top">
+<tr><td class="option-group" colspan="2">
+<kbd><span class="option">--reneg-bytes <var>n</var></span></kbd></td>
+</tr>
+<tr><td>&nbsp;</td><td><p class="first">Renegotiate data channel key after <tt class="docutils literal">n</tt> bytes sent or received
+(disabled by default with an exception, see below). OpenVPN allows the
+lifetime of a key to be expressed as a number of bytes
+encrypted/decrypted, a number of packets, or a number of seconds. A key
+renegotiation will be forced if any of these three criteria are met by
+either peer.</p>
+<p class="last">If using ciphers with cipher block sizes less than 128-bits,
+<tt class="docutils literal"><span class="pre">--reneg-bytes</span></tt> is set to 64MB by default, unless it is explicitly
+disabled by setting the value to <code>0</code>, but this is
+<strong>HIGHLY DISCOURAGED</strong> as this is designed to add some protection against
+the SWEET32 attack vector. For more information see the <tt class="docutils literal"><span class="pre">--cipher</span></tt>
+option.</p>
+</td></tr>
+<tr><td class="option-group">
+<kbd><span class="option">--reneg-pkts <var>n</var></span></kbd></td>
+<td>Renegotiate data channel key after <strong>n</strong> packets sent and received
+(disabled by default).</td></tr>
+<tr><td class="option-group" colspan="2">
+<kbd><span class="option">--reneg-sec <var>args</var></span></kbd></td>
+</tr>
+<tr><td>&nbsp;</td><td><p class="first">Renegotiate data channel key after at most <tt class="docutils literal">max</tt> seconds
+(default <code>3600</code>) and at least <tt class="docutils literal">min</tt> seconds (default is 90% of
+<tt class="docutils literal">max</tt> for servers, and equal to <tt class="docutils literal">max</tt> for clients).</p>
+<pre class="literal-block">
+reneg-sec max [min]
+</pre>
+<p>The effective <tt class="docutils literal"><span class="pre">--reneg-sec</span></tt> value used is per session
+pseudo-uniform-randomized between <tt class="docutils literal">min</tt> and <tt class="docutils literal">max</tt>.</p>
+<p>With the default value of <code>3600</code> this results in an effective per
+session value in the range of <code>3240</code>..:code:<cite>3600</cite> seconds for
+servers, or just 3600 for clients.</p>
+<p>When using dual-factor authentication, note that this default value may
+cause the end user to be challenged to reauthorize once per hour.</p>
+<p class="last">Also, keep in mind that this option can be used on both the client and
+server, and whichever uses the lower value will be the one to trigger
+the renegotiation. A common mistake is to set <tt class="docutils literal"><span class="pre">--reneg-sec</span></tt> to a
+higher value on either the client or server, while the other side of the
+connection is still using the default value of <code>3600</code> seconds,
+meaning that the renegotiation will still occur once per <code>3600</code>
+seconds. The solution is to increase --reneg-sec on both the client and
+server, or set it to <code>0</code> on one side of the connection (to
+disable), and to your chosen value on the other side.</p>
+</td></tr>
+</tbody>
+</table>
+</div>
+<div class="section" id="tls-mode-options">
+<h2>TLS Mode Options</h2>
+<p>TLS mode is the most powerful crypto mode of OpenVPN in both security
+and flexibility. TLS mode works by establishing control and data
+channels which are multiplexed over a single TCP/UDP port. OpenVPN
+initiates a TLS session over the control channel and uses it to exchange
+cipher and HMAC keys to protect the data channel. TLS mode uses a robust
+reliability layer over the UDP connection for all control channel
+communication, while the data channel, over which encrypted tunnel data
+passes, is forwarded without any mediation. The result is the best of
+both worlds: a fast data channel that forwards over UDP with only the
+overhead of encrypt, decrypt, and HMAC functions, and a control channel
+that provides all of the security features of TLS, including
+certificate-based authentication and Diffie Hellman forward secrecy.</p>
+<p>To use TLS mode, each peer that runs OpenVPN should have its own local
+certificate/key pair (<tt class="docutils literal"><span class="pre">--cert</span></tt> and <tt class="docutils literal"><span class="pre">--key</span></tt>), signed by the root
+certificate which is specified in <tt class="docutils literal"><span class="pre">--ca</span></tt>.</p>
+<p>When two OpenVPN peers connect, each presents its local certificate to
+the other. Each peer will then check that its partner peer presented a
+certificate which was signed by the master root certificate as specified
+in <tt class="docutils literal"><span class="pre">--ca</span></tt>.</p>
+<p>If that check on both peers succeeds, then the TLS negotiation will
+succeed, both OpenVPN peers will exchange temporary session keys, and
+the tunnel will begin passing data.</p>
+<p>The OpenVPN project provides a set of scripts for managing RSA
+certificates and keys: <a class="reference external" href="https://github.com/OpenVPN/easy-rsa">https://github.com/OpenVPN/easy-rsa</a></p>
+<table class="docutils option-list" frame="void" rules="none">
+<col class="option" />
+<col class="description" />
+<tbody valign="top">
+<tr><td class="option-group">
+<kbd><span class="option">--askpass <var>file</var></span></kbd></td>
+<td><p class="first">Get certificate password from console or <tt class="docutils literal">file</tt> before we daemonize.</p>
+<p>Valid syntaxes:</p>
+<pre class="literal-block">
+askpass
+askpass file
+</pre>
+<p>For the extremely security conscious, it is possible to protect your
+private key with a password. Of course this means that every time the
+OpenVPN daemon is started you must be there to type the password. The
+<tt class="docutils literal"><span class="pre">--askpass</span></tt> option allows you to start OpenVPN from the command line.
+It will query you for a password before it daemonizes. To protect a
+private key with a password you should omit the <tt class="docutils literal"><span class="pre">-nodes</span></tt> option when
+you use the <tt class="docutils literal">openssl</tt> command line tool to manage certificates and
+private keys.</p>
+<p class="last">If <tt class="docutils literal">file</tt> is specified, read the password from the first line of
+<tt class="docutils literal">file</tt>. Keep in mind that storing your password in a file to a certain
+extent invalidates the extra security provided by using an encrypted
+key.</p>
+</td></tr>
+<tr><td class="option-group">
+<kbd><span class="option">--ca <var>file</var></span></kbd></td>
+<td><p class="first">Certificate authority (CA) file in .pem format, also referred to as the
+<em>root</em> certificate. This file can have multiple certificates in .pem
+format, concatenated together. You can construct your own certificate
+authority certificate and private key by using a command such as:</p>
+<pre class="literal-block">
+openssl req -nodes -new -x509 -keyout ca.key -out ca.crt
+</pre>
+<p>Then edit your openssl.cnf file and edit the <tt class="docutils literal">certificate</tt> variable to
+point to your new root certificate <tt class="docutils literal">ca.crt</tt>.</p>
+<p class="last">For testing purposes only, the OpenVPN distribution includes a sample CA
+certificate (ca.crt). Of course you should never use the test
+certificates and test keys distributed with OpenVPN in a production
+environment, since by virtue of the fact that they are distributed with
+OpenVPN, they are totally insecure.</p>
+</td></tr>
+<tr><td class="option-group">
+<kbd><span class="option">--capath <var>dir</var></span></kbd></td>
+<td><p class="first">Directory containing trusted certificates (CAs and CRLs). Not available
+with mbed TLS.</p>
+<p>CAs in the capath directory are expected to be named &lt;hash&gt;.&lt;n&gt;. CRLs
+are expected to be named &lt;hash&gt;.r&lt;n&gt;. See the <tt class="docutils literal"><span class="pre">-CApath</span></tt> option of
+<tt class="docutils literal">openssl verify</tt>, and the <tt class="docutils literal"><span class="pre">-hash</span></tt> option of <tt class="docutils literal">openssl x509</tt>,
+<tt class="docutils literal">openssl crl</tt> and <tt class="docutils literal">X509_LOOKUP_hash_dir()</tt>(3)
+for more information.</p>
+<p class="last">Similar to the <tt class="docutils literal"><span class="pre">--crl-verify</span></tt> option, CRLs are not mandatory -
+OpenVPN will log the usual warning in the logs if the relevant CRL is
+missing, but the connection will be allowed.</p>
+</td></tr>
+<tr><td class="option-group">
+<kbd><span class="option">--cert <var>file</var></span></kbd></td>
+<td><p class="first">Local peer's signed certificate in .pem format -- must be signed by a
+certificate authority whose certificate is in <tt class="docutils literal"><span class="pre">--ca</span> file</tt>. Each peer
+in an OpenVPN link running in TLS mode should have its own certificate
+and private key file. In addition, each certificate should have been
+signed by the key of a certificate authority whose public key resides in
+the <tt class="docutils literal"><span class="pre">--ca</span></tt> certificate authority file. You can easily make your own
+certificate authority (see above) or pay money to use a commercial
+service such as thawte.com (in which case you will be helping to finance
+the world's second space tourist :). To generate a certificate, you can
+use a command such as:</p>
+<pre class="literal-block">
+openssl req -nodes -new -keyout mycert.key -out mycert.csr
+</pre>
+<p>If your certificate authority private key lives on another machine, copy
+the certificate signing request (mycert.csr) to this other machine (this
+can be done over an insecure channel such as email). Now sign the
+certificate with a command such as:</p>
+<pre class="literal-block">
+openssl ca -out mycert.crt -in mycert.csr
+</pre>
+<p class="last">Now copy the certificate (mycert.crt) back to the peer which initially
+generated the .csr file (this can be over a public medium). Note that
+the <tt class="docutils literal">openssl ca</tt> command reads the location of the certificate
+authority key from its configuration file such as
+<code>/usr/share/ssl/openssl.cnf</code> -- note also that for certificate
+authority functions, you must set up the files <code>index.txt</code> (may be
+empty) and <code>serial</code> (initialize to <code>01</code>).</p>
+</td></tr>
+<tr><td class="option-group" colspan="2">
+<kbd><span class="option">--crl-verify <var>args</var></span></kbd></td>
+</tr>
+<tr><td>&nbsp;</td><td><p class="first">Check peer certificate against a Certificate Revocation List.</p>
+<p>Valid syntax:</p>
+<pre class="literal-block">
+crl-verify file/directory flag
+</pre>
+<p>Examples:</p>
+<pre class="literal-block">
+crl-verify crl-file.pem
+crl-verify /etc/openvpn/crls dir
+</pre>
+<p>A CRL (certificate revocation list) is used when a particular key is
+compromised but when the overall PKI is still intact.</p>
+<p>Suppose you had a PKI consisting of a CA, root certificate, and a number
+of client certificates. Suppose a laptop computer containing a client
+key and certificate was stolen. By adding the stolen certificate to the
+CRL file, you could reject any connection which attempts to use it,
+while preserving the overall integrity of the PKI.</p>
+<p>The only time when it would be necessary to rebuild the entire PKI from
+scratch would be if the root certificate key itself was compromised.</p>
+<p>The option is not mandatory - if the relevant CRL is missing, OpenVPN
+will log a warning in the logs - e.g.</p>
+<pre class="literal-block">
+VERIFY WARNING: depth=0, unable to get certificate CRL
+</pre>
+<p>but the connection will be allowed.  If the optional <code>dir</code> flag
+is specified, enable a different mode where the <tt class="docutils literal"><span class="pre">crl-verify</span></tt> is
+pointed at a directory containing files named as revoked serial numbers
+(the files may be empty, the contents are never read). If a client
+requests a connection, where the client certificate serial number
+(decimal string) is the name of a file present in the directory, it will
+be rejected.</p>
+<dl class="last docutils">
+<dt><em>Note:</em></dt>
+<dd>As the crl file (or directory) is read every time a peer
+connects, if you are dropping root privileges with
+<tt class="docutils literal"><span class="pre">--user</span></tt>, make sure that this user has sufficient
+privileges to read the file.</dd>
+</dl>
+</td></tr>
+<tr><td class="option-group">
+<kbd><span class="option">--dh <var>file</var></span></kbd></td>
+<td><p class="first">File containing Diffie Hellman parameters in .pem format (required for
+<tt class="docutils literal"><span class="pre">--tls-server</span></tt> only).</p>
+<p>Set <tt class="docutils literal">file</tt> to <code>none</code> to disable Diffie Hellman key exchange (and
+use ECDH only). Note that this requires peers to be using an SSL library
+that supports ECDH TLS cipher suites (e.g. OpenSSL 1.0.1+, or
+mbed TLS 2.0+).</p>
+<p class="last">Use <tt class="docutils literal">openssl dhparam <span class="pre">-out</span> dh2048.pem 2048</tt> to generate 2048-bit DH
+parameters. Diffie Hellman parameters may be considered public.</p>
+</td></tr>
+<tr><td class="option-group" colspan="2">
+<kbd><span class="option">--ecdh-curve <var>name</var></span></kbd></td>
+</tr>
+<tr><td>&nbsp;</td><td><p class="first">Specify the curve to use for elliptic curve Diffie Hellman. Available
+curves can be listed with <tt class="docutils literal"><span class="pre">--show-curves</span></tt>. The specified curve will
+only be used for ECDH TLS-ciphers.</p>
+<p class="last">This option is not supported in mbed TLS builds of OpenVPN.</p>
+</td></tr>
+<tr><td class="option-group" colspan="2">
+<kbd><span class="option">--extra-certs <var>file</var></span></kbd></td>
+</tr>
+<tr><td>&nbsp;</td><td><p class="first">Specify a <tt class="docutils literal">file</tt> containing one or more PEM certs (concatenated
+together) that complete the local certificate chain.</p>
+<p class="last">This option is useful for &quot;split&quot; CAs, where the CA for server certs is
+different than the CA for client certs. Putting certs in this file
+allows them to be used to complete the local certificate chain without
+trusting them to verify the peer-submitted certificate, as would be the
+case if the certs were placed in the <tt class="docutils literal">ca</tt> file.</p>
+</td></tr>
+<tr><td class="option-group" colspan="2">
+<kbd><span class="option">--hand-window <var>n</var></span></kbd></td>
+</tr>
+<tr><td>&nbsp;</td><td>Handshake Window -- the TLS-based key exchange must finalize within
+<tt class="docutils literal">n</tt> seconds of handshake initiation by any peer (default <code>60</code>
+seconds). If the handshake fails we will attempt to reset our connection
+with our peer and try again. Even in the event of handshake failure we
+will still use our expiring key for up to <tt class="docutils literal"><span class="pre">--tran-window</span></tt> seconds to
+maintain continuity of transmission of tunnel data.</td></tr>
+<tr><td class="option-group">
+<kbd><span class="option">--key <var>file</var></span></kbd></td>
+<td>Local peer's private key in .pem format. Use the private key which was
+generated when you built your peer's certificate (see <tt class="docutils literal"><span class="pre">--cert</span> file</tt>
+above).</td></tr>
+<tr><td class="option-group">
+<kbd><span class="option">--pkcs12 <var>file</var></span></kbd></td>
+<td>Specify a PKCS #12 file containing local private key, local certificate,
+and root CA certificate. This option can be used instead of <tt class="docutils literal"><span class="pre">--ca</span></tt>,
+<tt class="docutils literal"><span class="pre">--cert</span></tt>, and <tt class="docutils literal"><span class="pre">--key</span></tt>.  Not available with mbed TLS.</td></tr>
+<tr><td class="option-group" colspan="2">
+<kbd><span class="option">--remote-cert-eku <var>oid</var></span></kbd></td>
+</tr>
+<tr><td>&nbsp;</td><td><p class="first">Require that peer certificate was signed with an explicit <em>extended key
+usage</em>.</p>
+<p>This is a useful security option for clients, to ensure that the host
+they connect to is a designated server.</p>
+<p class="last">The extended key usage should be encoded in <em>oid notation</em>, or <em>OpenSSL
+symbolic representation</em>.</p>
+</td></tr>
+<tr><td class="option-group" colspan="2">
+<kbd><span class="option">--remote-cert-ku <var>key-usage</var></span></kbd></td>
+</tr>
+<tr><td>&nbsp;</td><td><p class="first">Require that peer certificate was signed with an explicit
+<tt class="docutils literal"><span class="pre">key-usage</span></tt>.</p>
+<p>If present in the certificate, the <code>keyUsage</code> value is validated by
+the TLS library during the TLS handshake. Specifying this option without
+arguments requires this extension to be present (so the TLS library will
+verify it).</p>
+<p>If <tt class="docutils literal"><span class="pre">key-usage</span></tt> is a list of usage bits, the <code>keyUsage</code> field
+must have <em>at least</em> the same bits set as the bits in <em>one of</em> the values
+supplied in the <tt class="docutils literal"><span class="pre">key-usage</span></tt> list.</p>
+<p>The <tt class="docutils literal"><span class="pre">key-usage</span></tt> values in the list must be encoded in hex, e.g.</p>
+<pre class="last literal-block">
+remote-cert-ku a0
+</pre>
+</td></tr>
+<tr><td class="option-group" colspan="2">
+<kbd><span class="option">--remote-cert-tls <var>type</var></span></kbd></td>
+</tr>
+<tr><td>&nbsp;</td><td><p class="first">Require that peer certificate was signed with an explicit <em>key usage</em>
+and <em>extended key usage</em> based on RFC3280 TLS rules.</p>
+<p>Valid syntaxes:</p>
+<pre class="literal-block">
+remote-cert-tls server
+remote-cert-tls client
+</pre>
+<p>This is a useful security option for clients, to ensure that the host
+they connect to is a designated server. Or the other way around; for a
+server to verify that only hosts with a client certificate can connect.</p>
+<p>The <tt class="docutils literal"><span class="pre">--remote-cert-tls</span> client</tt> option is equivalent to</p>
+<pre class="literal-block">
+remote-cert-ku
+remote-cert-eku &quot;TLS Web Client Authentication&quot;
+</pre>
+<p>The <tt class="docutils literal"><span class="pre">--remote-cert-tls</span> server</tt> option is equivalent to</p>
+<pre class="literal-block">
+remote-cert-ku
+remote-cert-eku &quot;TLS Web Server Authentication&quot;
+</pre>
+<p class="last">This is an important security precaution to protect against a
+man-in-the-middle attack where an authorized client attempts to connect
+to another client by impersonating the server. The attack is easily
+prevented by having clients verify the server certificate using any one
+of <tt class="docutils literal"><span class="pre">--remote-cert-tls</span></tt>, <tt class="docutils literal"><span class="pre">--verify-x509-name</span></tt>, or <tt class="docutils literal"><span class="pre">--tls-verify</span></tt>.</p>
+</td></tr>
+<tr><td class="option-group" colspan="2">
+<kbd><span class="option">--tls-auth <var>args</var></span></kbd></td>
+</tr>
+<tr><td>&nbsp;</td><td><p class="first">Add an additional layer of HMAC authentication on top of the TLS control
+channel to mitigate DoS attacks and attacks on the TLS stack.</p>
+<p>Valid syntaxes:</p>
+<pre class="literal-block">
+tls-auth file
+tls-auth file 0
+tls-auth file 1
+</pre>
+<p>In a nutshell, <tt class="docutils literal"><span class="pre">--tls-auth</span></tt> enables a kind of &quot;HMAC firewall&quot; on
+OpenVPN's TCP/UDP port, where TLS control channel packets bearing an
+incorrect HMAC signature can be dropped immediately without response.</p>
+<p><tt class="docutils literal">file</tt> (required) is a file in OpenVPN static key format which can be
+generated by <tt class="docutils literal"><span class="pre">--genkey</span></tt>.</p>
+<p>Older versions (up to OpenVPN 2.3) supported a freeform passphrase file.
+This is no longer supported in newer versions (v2.4+).</p>
+<p>See the <tt class="docutils literal"><span class="pre">--secret</span></tt> option for more information on the optional
+<tt class="docutils literal">direction</tt> parameter.</p>
+<p><tt class="docutils literal"><span class="pre">--tls-auth</span></tt> is recommended when you are running OpenVPN in a mode
+where it is listening for packets from any IP address, such as when
+<tt class="docutils literal"><span class="pre">--remote</span></tt> is not specified, or <tt class="docutils literal"><span class="pre">--remote</span></tt> is specified with
+<tt class="docutils literal"><span class="pre">--float</span></tt>.</p>
+<p>The rationale for this feature is as follows. TLS requires a
+multi-packet exchange before it is able to authenticate a peer. During
+this time before authentication, OpenVPN is allocating resources (memory
+and CPU) to this potential peer. The potential peer is also exposing
+many parts of OpenVPN and the OpenSSL library to the packets it is
+sending. Most successful network attacks today seek to either exploit
+bugs in programs (such as buffer overflow attacks) or force a program to
+consume so many resources that it becomes unusable. Of course the first
+line of defense is always to produce clean, well-audited code. OpenVPN
+has been written with buffer overflow attack prevention as a top
+priority. But as history has shown, many of the most widely used network
+applications have, from time to time, fallen to buffer overflow attacks.</p>
+<p>So as a second line of defense, OpenVPN offers this special layer of
+authentication on top of the TLS control channel so that every packet on
+the control channel is authenticated by an HMAC signature and a unique
+ID for replay protection. This signature will also help protect against
+DoS (Denial of Service) attacks. An important rule of thumb in reducing
+vulnerability to DoS attacks is to minimize the amount of resources a
+potential, but as yet unauthenticated, client is able to consume.</p>
+<p><tt class="docutils literal"><span class="pre">--tls-auth</span></tt> does this by signing every TLS control channel packet
+with an HMAC signature, including packets which are sent before the TLS
+level has had a chance to authenticate the peer. The result is that
+packets without the correct signature can be dropped immediately upon
+reception, before they have a chance to consume additional system
+resources such as by initiating a TLS handshake. <tt class="docutils literal"><span class="pre">--tls-auth</span></tt> can be
+strengthened by adding the <tt class="docutils literal"><span class="pre">--replay-persist</span></tt> option which will keep
+OpenVPN's replay protection state in a file so that it is not lost
+across restarts.</p>
+<p>It should be emphasized that this feature is optional and that the key
+file used with <tt class="docutils literal"><span class="pre">--tls-auth</span></tt> gives a peer nothing more than the power
+to initiate a TLS handshake. It is not used to encrypt or authenticate
+any tunnel data.</p>
+<p class="last">Use <tt class="docutils literal"><span class="pre">--tls-crypt</span></tt> instead if you want to use the key file to not only
+authenticate, but also encrypt the TLS control channel.</p>
+</td></tr>
+<tr><td class="option-group" colspan="2">
+<kbd><span class="option">--tls-groups <var>list</var></span></kbd></td>
+</tr>
+<tr><td>&nbsp;</td><td><p class="first">A list of allowable groups/curves in order of preference.</p>
+<p>Set the allowed elliptic curves/groups for the TLS session.
+These groups are allowed to be used in signatures and key exchange.</p>
+<p>mbedTLS currently allows all known curves per default.</p>
+<p>OpenSSL 1.1+ restricts the list per default to</p>
+<pre class="literal-block">
+&quot;X25519:secp256r1:X448:secp521r1:secp384r1&quot;.
+</pre>
+<p>If you use certificates that use non-standard curves, you
+might need to add them here. If you do not force the ecdh curve
+by using <tt class="docutils literal"><span class="pre">--ecdh-curve</span></tt>, the groups for ecdh will also be picked
+from this list.</p>
+<p>OpenVPN maps the curve name <cite>secp256r1</cite> to <cite>prime256v1</cite> to allow
+specifying the same tls-groups option for mbedTLS and OpenSSL.</p>
+<p class="last">Warning: this option not only affects elliptic curve certificates
+but also the key exchange in TLS 1.3 and using this option improperly
+will disable TLS 1.3.</p>
+</td></tr>
+<tr><td class="option-group" colspan="2">
+<kbd><span class="option">--tls-cert-profile <var>profile</var></span></kbd></td>
+</tr>
+<tr><td>&nbsp;</td><td><p class="first">Set the allowed cryptographic algorithms for certificates according to
+<tt class="docutils literal">profile</tt>.</p>
+<p>The following profiles are supported:</p>
+<dl class="docutils">
+<dt><code>legacy</code> (default)</dt>
+<dd>SHA1 and newer, RSA 2048-bit+, any elliptic curve.</dd>
+<dt><code>preferred</code></dt>
+<dd>SHA2 and newer, RSA 2048-bit+, any elliptic curve.</dd>
+<dt><code>suiteb</code></dt>
+<dd>SHA256/SHA384, ECDSA with P-256 or P-384.</dd>
+</dl>
+<p>This option is only fully supported for mbed TLS builds. OpenSSL builds
+use the following approximation:</p>
+<dl class="docutils">
+<dt><code>legacy</code> (default)</dt>
+<dd>sets &quot;security level 1&quot;</dd>
+<dt><code>preferred</code></dt>
+<dd>sets &quot;security level 2&quot;</dd>
+<dt><code>suiteb</code></dt>
+<dd>sets &quot;security level 3&quot; and <tt class="docutils literal"><span class="pre">--tls-cipher</span> &quot;SUITEB128&quot;</tt>.</dd>
+</dl>
+<p class="last">OpenVPN will migrate to 'preferred' as default in the future. Please
+ensure that your keys already comply.</p>
+</td></tr>
+</tbody>
+</table>
+<dl class="docutils">
+<dt><em>WARNING:</em> <tt class="docutils literal"><span class="pre">--tls-ciphers</span></tt>, <tt class="docutils literal"><span class="pre">--tls-ciphersuites</span></tt> and <tt class="docutils literal"><span class="pre">tls-groups</span></tt></dt>
+<dd>These options are expert features, which - if used correctly - can
+improve the security of your VPN connection. But it is also easy to
+unwittingly use them to carefully align a gun with your foot, or just
+break your connection. Use with care!</dd>
+</dl>
+<table class="docutils option-list" frame="void" rules="none">
+<col class="option" />
+<col class="description" />
+<tbody valign="top">
+<tr><td class="option-group">
+<kbd><span class="option">--tls-cipher <var>l</var></span></kbd></td>
+<td><p class="first">A list <tt class="docutils literal">l</tt> of allowable TLS ciphers delimited by a colon (&quot;<code>:</code>&quot;).</p>
+<p>These setting can be used to ensure that certain cipher suites are used
+(or not used) for the TLS connection. OpenVPN uses TLS to secure the
+control channel, over which the keys that are used to protect the actual
+VPN traffic are exchanged.</p>
+<p>The supplied list of ciphers is (after potential OpenSSL/IANA name
+translation) simply supplied to the crypto library. Please see the
+OpenSSL and/or mbed TLS documentation for details on the cipher list
+interpretation.</p>
+<p>For OpenSSL, the <tt class="docutils literal"><span class="pre">--tls-cipher</span></tt> is used for TLS 1.2 and below.</p>
+<p>Use <tt class="docutils literal"><span class="pre">--show-tls</span></tt> to see a list of TLS ciphers supported by your crypto
+library.</p>
+<p>The default for <tt class="docutils literal"><span class="pre">--tls-cipher</span></tt> is to use mbed TLS's default cipher list
+when using mbed TLS or
+<code>DEFAULT:!EXP:!LOW:!MEDIUM:!kDH:!kECDH:!DSS:!PSK:!SRP:!kRSA</code> when
+using OpenSSL.</p>
+<p class="last">The default for <cite>--tls-ciphersuites</cite> is to use the crypto library's
+default.</p>
+</td></tr>
+<tr><td class="option-group" colspan="2">
+<kbd><span class="option">--tls-ciphersuites <var>l</var></span></kbd></td>
+</tr>
+<tr><td>&nbsp;</td><td>Same as <tt class="docutils literal"><span class="pre">--tls-cipher</span></tt> but for TLS 1.3 and up. mbed TLS has no
+TLS 1.3 support yet and only the <tt class="docutils literal"><span class="pre">--tls-cipher</span></tt> setting is used.</td></tr>
+<tr><td class="option-group">
+<kbd><span class="option">--tls-client</span></kbd></td>
+<td>Enable TLS and assume client role during TLS handshake.</td></tr>
+<tr><td class="option-group" colspan="2">
+<kbd><span class="option">--tls-crypt <var>keyfile</var></span></kbd></td>
+</tr>
+<tr><td>&nbsp;</td><td><p class="first">Encrypt and authenticate all control channel packets with the key from
+<tt class="docutils literal">keyfile</tt>. (See <tt class="docutils literal"><span class="pre">--tls-auth</span></tt> for more background.)</p>
+<p>Encrypting (and authenticating) control channel packets:</p>
+<ul class="simple">
+<li>provides more privacy by hiding the certificate used for the TLS
+connection,</li>
+<li>makes it harder to identify OpenVPN traffic as such,</li>
+<li>provides &quot;poor-man's&quot; post-quantum security, against attackers who will
+never know the pre-shared key (i.e. no forward secrecy).</li>
+</ul>
+<p>In contrast to <tt class="docutils literal"><span class="pre">--tls-auth</span></tt>, <tt class="docutils literal"><span class="pre">--tls-crypt</span></tt> does <em>not</em> require the
+user to set <tt class="docutils literal"><span class="pre">--key-direction</span></tt>.</p>
+<p><strong>Security Considerations</strong></p>
+<p>All peers use the same <tt class="docutils literal"><span class="pre">--tls-crypt</span></tt> pre-shared group key to
+authenticate and encrypt control channel messages. To ensure that IV
+collisions remain unlikely, this key should not be used to encrypt more
+than 2^48 client-to-server or 2^48 server-to-client control channel
+messages. A typical initial negotiation is about 10 packets in each
+direction. Assuming both initial negotiation and renegotiations are at
+most 2^16 (65536) packets (to be conservative), and (re)negotiations
+happen each minute for each user (24/7), this limits the tls-crypt key
+lifetime to 8171 years divided by the number of users. So a setup with
+1000 users should rotate the key at least once each eight years. (And a
+setup with 8000 users each year.)</p>
+<p>If IV collisions were to occur, this could result in the security of
+<tt class="docutils literal"><span class="pre">--tls-crypt</span></tt> degrading to the same security as using <tt class="docutils literal"><span class="pre">--tls-auth</span></tt>.
+That is, the control channel still benefits from the extra protection
+against active man-in-the-middle-attacks and DoS attacks, but may no
+longer offer extra privacy and post-quantum security on top of what TLS
+itself offers.</p>
+<p class="last">For large setups or setups where clients are not trusted, consider using
+<tt class="docutils literal"><span class="pre">--tls-crypt-v2</span></tt> instead. That uses per-client unique keys, and
+thereby improves the bounds to 'rotate a client key at least once per
+8000 years'.</p>
+</td></tr>
+<tr><td class="option-group" colspan="2">
+<kbd><span class="option">--tls-crypt-v2 <var>keyfile</var></span></kbd></td>
+</tr>
+<tr><td>&nbsp;</td><td><p class="first">Use client-specific tls-crypt keys.</p>
+<p>For clients, <tt class="docutils literal">keyfile</tt> is a client-specific tls-crypt key. Such a key
+can be generated using the <code>--genkey tls-crypt-v2-client</code> option.</p>
+<p>For servers, <tt class="docutils literal">keyfile</tt> is used to unwrap client-specific keys supplied
+by the client during connection setup. This key must be the same as the
+key used to generate the client-specific key (see <code>--genkey
+tls-crypt-v2-client</code>).</p>
+<p class="last">On servers, this option can be used together with the <tt class="docutils literal"><span class="pre">--tls-auth</span></tt> or
+<tt class="docutils literal"><span class="pre">--tls-crypt</span></tt> option. In that case, the server will detect whether the
+client is using client-specific keys, and automatically select the right
+mode.</p>
+</td></tr>
+<tr><td class="option-group" colspan="2">
+<kbd><span class="option">--tls-crypt-v2-verify <var>cmd</var></span></kbd></td>
+</tr>
+<tr><td>&nbsp;</td><td><p class="first">Run command <tt class="docutils literal">cmd</tt> to verify the metadata of the client-specific
+tls-crypt-v2 key of a connecting client. This allows server
+administrators to reject client connections, before exposing the TLS
+stack (including the notoriously dangerous X.509 and ASN.1 stacks) to
+the connecting client.</p>
+<p>OpenVPN supplies the following environment variables to the command:</p>
+<ul class="simple">
+<li><code>script_type</code> is set to <code>tls-crypt-v2-verify</code></li>
+<li><code>metadata_type</code> is set to <code>0</code> if the metadata was user
+supplied, or <code>1</code> if it's a 64-bit unix timestamp representing
+the key creation time.</li>
+<li><code>metadata_file</code> contains the filename of a temporary file that
+contains the client metadata.</li>
+</ul>
+<p class="last">The command can reject the connection by exiting with a non-zero exit
+code.</p>
+</td></tr>
+<tr><td class="option-group">
+<kbd><span class="option">--tls-exit</span></kbd></td>
+<td>Exit on TLS negotiation failure.</td></tr>
+<tr><td class="option-group" colspan="2">
+<kbd><span class="option">--tls-export-cert <var>directory</var></span></kbd></td>
+</tr>
+<tr><td>&nbsp;</td><td>Store the certificates the clients use upon connection to this
+directory. This will be done before <tt class="docutils literal"><span class="pre">--tls-verify</span></tt> is called. The
+certificates will use a temporary name and will be deleted when the
+tls-verify script returns. The file name used for the certificate is
+available via the <tt class="docutils literal">peer_cert</tt> environment variable.</td></tr>
+<tr><td class="option-group">
+<kbd><span class="option">--tls-server</span></kbd></td>
+<td>Enable TLS and assume server role during TLS handshake. Note that
+OpenVPN is designed as a peer-to-peer application. The designation of
+client or server is only for the purpose of negotiating the TLS control
+channel.</td></tr>
+<tr><td class="option-group" colspan="2">
+<kbd><span class="option">--tls-timeout <var>n</var></span></kbd></td>
+</tr>
+<tr><td>&nbsp;</td><td>Packet retransmit timeout on TLS control channel if no acknowledgment
+from remote within <tt class="docutils literal">n</tt> seconds (default <code>2</code>). When OpenVPN sends
+a control packet to its peer, it will expect to receive an
+acknowledgement within <tt class="docutils literal">n</tt> seconds or it will retransmit the packet,
+subject to a TCP-like exponential backoff algorithm. This parameter only
+applies to control channel packets. Data channel packets (which carry
+encrypted tunnel data) are never acknowledged, sequenced, or
+retransmitted by OpenVPN because the higher level network protocols
+running on top of the tunnel such as TCP expect this role to be left to
+them.</td></tr>
+<tr><td class="option-group" colspan="2">
+<kbd><span class="option">--tls-version-min <var>args</var></span></kbd></td>
+</tr>
+<tr><td>&nbsp;</td><td><p class="first">Sets the minimum TLS version we will accept from the peer (default is
+&quot;1.0&quot;).</p>
+<p>Valid syntax:</p>
+<pre class="literal-block">
+tls-version-min version ['or-highest']
+</pre>
+<p class="last">Examples for version include <code>1.0</code>, <code>1.1</code>, or <code>1.2</code>. If
+<code>or-highest</code> is specified and version is not recognized, we will
+only accept the highest TLS version supported by the local SSL
+implementation.</p>
+</td></tr>
+<tr><td class="option-group" colspan="2">
+<kbd><span class="option">--tls-version-max <var>version</var></span></kbd></td>
+</tr>
+<tr><td>&nbsp;</td><td>Set the maximum TLS version we will use (default is the highest version
+supported). Examples for version include <code>1.0</code>, <code>1.1</code>, or
+<code>1.2</code>.</td></tr>
+<tr><td class="option-group" colspan="2">
+<kbd><span class="option">--verify-hash <var>args</var></span></kbd></td>
+</tr>
+<tr><td>&nbsp;</td><td><p class="first">Specify SHA1 or SHA256 fingerprint for level-1 cert.</p>
+<p>Valid syntax:</p>
+<pre class="literal-block">
+verify-hash hash [algo]
+</pre>
+<p>The level-1 cert is the CA (or intermediate cert) that signs the leaf
+certificate, and is one removed from the leaf certificate in the
+direction of the root. When accepting a connection from a peer, the
+level-1 cert fingerprint must match <tt class="docutils literal">hash</tt> or certificate verification
+will fail. Hash is specified as XX:XX:... For example:</p>
+<pre class="literal-block">
+AD:B0:95:D8:09:C8:36:45:12:A9:89:C8:90:09:CB:13:72:A6:AD:16
+</pre>
+<p class="last">The <tt class="docutils literal">algo</tt> flag can be either <code>SHA1</code> or <code>SHA256</code>. If not
+provided, it defaults to <code>SHA1</code>.</p>
+</td></tr>
+<tr><td class="option-group" colspan="2">
+<kbd><span class="option">--verify-x509-name <var>args</var></span></kbd></td>
+</tr>
+<tr><td>&nbsp;</td><td><p class="first">Accept connections only if a host's X.509 name is equal to <strong>name.</strong> The
+remote host must also pass all other tests of verification.</p>
+<p>Valid syntax:</p>
+<pre class="literal-block">
+verify-x509 name type
+</pre>
+<p>Which X.509 name is compared to <tt class="docutils literal">name</tt> depends on the setting of type.
+<tt class="docutils literal">type</tt> can be <code>subject</code> to match the complete subject DN
+(default), <code>name</code> to match a subject RDN or <code>name-prefix</code> to
+match a subject RDN prefix. Which RDN is verified as name depends on the
+<tt class="docutils literal"><span class="pre">--x509-username-field</span></tt> option. But it defaults to the common name
+(CN), e.g. a certificate with a subject DN</p>
+<pre class="literal-block">
+C=KG, ST=NA, L=Bishkek, CN=Server-1
+</pre>
+<p>would be matched by:</p>
+<pre class="literal-block">
+verify-x509-name 'C=KG, ST=NA, L=Bishkek, CN=Server-1'
+verify-x509-name Server-1 name
+verify-x509-name Server- name-prefix
+</pre>
+<p>The last example is useful if you want a client to only accept
+connections to <code>Server-1</code>, <code>Server-2</code>, etc.</p>
+<p><tt class="docutils literal"><span class="pre">--verify-x509-name</span></tt> is a useful replacement for the <tt class="docutils literal"><span class="pre">--tls-verify</span></tt>
+option to verify the remote host, because <tt class="docutils literal"><span class="pre">--verify-x509-name</span></tt> works
+in a <tt class="docutils literal"><span class="pre">--chroot</span></tt> environment without any dependencies.</p>
+<p>Using a name prefix is a useful alternative to managing a CRL
+(Certificate Revocation List) on the client, since it allows the client
+to refuse all certificates except for those associated with designated
+servers.</p>
+<dl class="last docutils">
+<dt><em>NOTE:</em></dt>
+<dd>Test against a name prefix only when you are using OpenVPN
+with a custom CA certificate that is under your control. Never use
+this option with type <code>name-prefix</code> when your client
+certificates are signed by a third party, such as a commercial
+web CA.</dd>
+</dl>
+</td></tr>
+<tr><td class="option-group" colspan="2">
+<kbd><span class="option">--x509-track <var>attribute</var></span></kbd></td>
+</tr>
+<tr><td>&nbsp;</td><td>Save peer X509 <strong>attribute</strong> value in environment for use by plugins and
+management interface. Prepend a <code>+</code> to <tt class="docutils literal">attribute</tt> to save values
+from full cert chain. Values will be encoded as
+<code>X509_&lt;depth&gt;_&lt;attribute&gt;=&lt;value&gt;</code>. Multiple <tt class="docutils literal"><span class="pre">--x509-track</span></tt>
+options can be defined to track multiple attributes.</td></tr>
+<tr><td class="option-group" colspan="2">
+<kbd><span class="option">--x509-username-field <var>args</var></span></kbd></td>
+</tr>
+<tr><td>&nbsp;</td><td><p class="first">Field in the X.509 certificate subject to be used as the username
+(default <code>CN</code>).</p>
+<p>Valid syntax:</p>
+<pre class="literal-block">
+x509-username-field [ext:]fieldname
+</pre>
+<p>Typically, this option is specified with <strong>fieldname</strong> as
+either of the following:</p>
+<pre class="literal-block">
+x509-username-field emailAddress
+x509-username-field ext:subjectAltName
+</pre>
+<p>The first example uses the value of the <code>emailAddress</code> attribute
+in the certificate's Subject field as the username. The second example
+uses the <code>ext:</code> prefix to signify that the X.509 extension
+<tt class="docutils literal">fieldname</tt> <code>subjectAltName</code> be searched for an rfc822Name
+(email) field to be used as the username. In cases where there are
+multiple email addresses in <code>ext:fieldname</code>, the last occurrence
+is chosen.</p>
+<p>When this option is used, the <tt class="docutils literal"><span class="pre">--verify-x509-name</span></tt> option will match
+against the chosen <tt class="docutils literal">fieldname</tt> instead of the Common Name.</p>
+<p>Only the <code>subjectAltName</code> and <code>issuerAltName</code> X.509
+extensions are supported.</p>
+<p class="last"><strong>Please note:</strong> This option has a feature which will convert an
+all-lowercase <tt class="docutils literal">fieldname</tt> to uppercase characters, e.g.,
+<code>ou</code> -&gt; <code>OU</code>. A mixed-case <tt class="docutils literal">fieldname</tt> or one having the
+<code>ext:</code> prefix will be left as-is. This automatic upcasing feature is
+deprecated and will be removed in a future release.</p>
+</td></tr>
+</tbody>
+</table>
+</div>
+<div class="section" id="pkcs-11-smartcard-options">
+<h2>PKCS#11 / SmartCard options</h2>
+<table class="docutils option-list" frame="void" rules="none">
+<col class="option" />
+<col class="description" />
+<tbody valign="top">
+<tr><td class="option-group" colspan="2">
+<kbd><span class="option">--pkcs11-cert-private <var>args</var></span></kbd></td>
+</tr>
+<tr><td>&nbsp;</td><td><p class="first">Set if access to certificate object should be performed after login.
+Every provider has its own setting.</p>
+<p>Valid syntaxes:</p>
+<pre class="last literal-block">
+pkcs11-cert-private 0
+pkcs11-cert-private 1
+</pre>
+</td></tr>
+<tr><td class="option-group" colspan="2">
+<kbd><span class="option">--pkcs11-id <var>name</var></span></kbd></td>
+</tr>
+<tr><td>&nbsp;</td><td>Specify the serialized certificate id to be used. The id can be gotten
+by the standalone <tt class="docutils literal"><span class="pre">--show-pkcs11-ids</span></tt> option.</td></tr>
+<tr><td class="option-group" colspan="2">
+<kbd><span class="option">--pkcs11-id-management</span></kbd></td>
+</tr>
+<tr><td>&nbsp;</td><td>Acquire PKCS#11 id from management interface. In this case a
+<code>NEED-STR 'pkcs11-id-request'</code> real-time message will be triggered,
+application may use pkcs11-id-count command to retrieve available number of
+certificates, and pkcs11-id-get command to retrieve certificate id and
+certificate body.</td></tr>
+<tr><td class="option-group" colspan="2">
+<kbd><span class="option">--pkcs11-pin-cache <var>seconds</var></span></kbd></td>
+</tr>
+<tr><td>&nbsp;</td><td>Specify how many seconds the PIN can be cached, the default is until the
+token is removed.</td></tr>
+<tr><td class="option-group" colspan="2">
+<kbd><span class="option">--pkcs11-private-mode <var>mode</var></span></kbd></td>
+</tr>
+<tr><td>&nbsp;</td><td><p class="first">Specify which method to use in order to perform private key operations.
+A different mode can be specified for each provider. Mode is encoded as
+hex number, and can be a mask one of the following:</p>
+<p><code>0</code> (default)   Try to determine automatically.</p>
+<p><code>1</code>             Use sign.</p>
+<p><code>2</code>             Use sign recover.</p>
+<p><code>4</code>             Use decrypt.</p>
+<p class="last"><code>8</code>             Use unwrap.</p>
+</td></tr>
+<tr><td class="option-group" colspan="2">
+<kbd><span class="option">--pkcs11-protected-authentication <var>args</var></span></kbd></td>
+</tr>
+<tr><td>&nbsp;</td><td><p class="first">Use PKCS#11 protected authentication path, useful for biometric and
+external keypad devices. Every provider has its own setting.</p>
+<p>Valid syntaxes:</p>
+<pre class="last literal-block">
+pkcs11-protected-authentication 0
+pkcs11-protected-authentication 1
+</pre>
+</td></tr>
+<tr><td class="option-group" colspan="2">
+<kbd><span class="option">--pkcs11-providers <var>provider</var></span></kbd></td>
+</tr>
+<tr><td>&nbsp;</td><td><p class="first">Specify an RSA Security Inc. PKCS #11 Cryptographic Token Interface
+(Cryptoki) providers to load. This option can be used instead of
+<tt class="docutils literal"><span class="pre">--cert</span></tt>, <tt class="docutils literal"><span class="pre">--key</span></tt> and <tt class="docutils literal"><span class="pre">--pkcs12</span></tt>.</p>
+<p class="last">If p11-kit is present on the system, its <code>p11-kit-proxy.so</code> module
+will be loaded by default if either the <tt class="docutils literal"><span class="pre">--pkcs11-id</span></tt> or
+<tt class="docutils literal"><span class="pre">--pkcs11-id-management</span></tt> options are specified without
+<tt class="docutils literal"><span class="pre">--pkcs11-provider</span></tt> being given.</p>
+</td></tr>
+<tr><td class="option-group" colspan="2">
+<kbd><span class="option">--show-pkcs11-ids <var>args</var></span></kbd></td>
+</tr>
+<tr><td>&nbsp;</td><td><p class="first">(Standalone) Show PKCS#11 token object list.</p>
+<p>Valid syntax:</p>
+<pre class="literal-block">
+show-pkcs11 [provider] [cert_private]
+</pre>
+<p>Specify <tt class="docutils literal">cert_private</tt> as <code>1</code> if certificates are stored as
+private objects.</p>
+<p>If <em>p11-kit</em> is present on the system, the <tt class="docutils literal">provider</tt> argument is
+optional; if omitted the default <code>p11-kit-proxy.so</code> module will be
+queried.</p>
+<p class="last"><tt class="docutils literal"><span class="pre">--verb</span></tt> option can be used BEFORE this option to produce debugging
+information.</p>
+</td></tr>
+</tbody>
+</table>
+</div>
+</div>
+<div class="section" id="data-channel-cipher-negotiation">
+<h1>Data channel cipher negotiation</h1>
+<p>OpenVPN 2.4 and higher have the capability to negotiate the data cipher that
+is used to encrypt data packets. This section describes the mechanism in more detail and the
+different backwards compatibility mechanism with older server and clients.</p>
+<div class="section" id="openvpn-2-5-and-higher-behaviour">
+<h2>OpenVPN 2.5 and higher behaviour</h2>
+<p>When both client and server are at least running OpenVPN 2.5, that the order of
+the ciphers of the server's <tt class="docutils literal"><span class="pre">--data-ciphers</span></tt> is used to pick the the data cipher.
+That means that the first cipher in that list that is also in the client's
+<tt class="docutils literal"><span class="pre">--data-ciphers</span></tt> list is chosen. If no common cipher is found the client is rejected
+with a AUTH_FAILED message (as seen in client log):</p>
+<blockquote>
+AUTH: Received control message: AUTH_FAILED,Data channel cipher negotiation failed (no shared cipher)</blockquote>
+<p>OpenVPN 2.5 will only allow the ciphers specified in <tt class="docutils literal"><span class="pre">--data-ciphers</span></tt>. To ensure
+backwards compatibility also if a cipher is specified using the <tt class="docutils literal"><span class="pre">--cipher</span></tt> option
+it is automatically added to this list. If both options are unset the default is
+<code>AES-256-GCM:AES-128-GCM</code>.</p>
+</div>
+<div class="section" id="openvpn-2-4-clients">
+<h2>OpenVPN 2.4 clients</h2>
+<p>The negotiation support in OpenVPN 2.4 was the first iteration of the implementation
+and still had some quirks. Its main goal was &quot;upgrade to AES-256-GCM when possible&quot;.
+An OpenVPN 2.4 client that is built against a crypto library that supports AES in GCM
+mode and does not have <tt class="docutils literal"><span class="pre">--ncp-disable</span></tt> will always announce support for
+<cite>AES-256-GCM</cite> and <cite>AES-128-GCM</cite> to a server by sending <code>IV_NCP=2</code>.</p>
+<p>This only causes a problem if <tt class="docutils literal"><span class="pre">--ncp-ciphers</span></tt> option has been changed from the
+default of <code>AES-256-GCM:AES-128-GCM</code> to a value that does not include
+these two ciphers. When a OpenVPN servers try to use <cite>AES-256-GCM</cite> or
+<cite>AES-128-GCM</cite> the connection will then fail. It is therefore recommended to
+always have the <cite>AES-256-GCM</cite> and <cite>AES-128-GCM</cite> ciphers to the <tt class="docutils literal"><span class="pre">--ncp-ciphers</span></tt>
+options to avoid this behaviour.</p>
+</div>
+<div class="section" id="openvpn-3-clients">
+<h2>OpenVPN 3 clients</h2>
+<p>Clients based on the OpenVPN 3.x library (<a class="reference external" href="https://github.com/openvpn/openvpn3/">https://github.com/openvpn/openvpn3/</a>)
+do not have a configurable <tt class="docutils literal"><span class="pre">--ncp-ciphers</span></tt> or <tt class="docutils literal"><span class="pre">--data-ciphers</span></tt> option. Instead
+these clients will announce support for all their supported AEAD ciphers
+(<cite>AES-256-GCM</cite>, <cite>AES-128-GCM</cite> and in newer versions also <cite>Chacha20-Poly1305</cite>).</p>
+<p>To support OpenVPN 3.x based clients at least one of these ciphers needs to be
+included in the server's <tt class="docutils literal"><span class="pre">--data-ciphers</span></tt> option.</p>
+</div>
+<div class="section" id="openvpn-2-3-and-older-clients-and-clients-with-ncp-disable">
+<h2>OpenVPN 2.3 and older clients (and clients with <tt class="docutils literal"><span class="pre">--ncp-disable</span></tt>)</h2>
+<p>When a client without cipher negotiation support connects to a server the
+cipher specified with the <tt class="docutils literal"><span class="pre">--cipher</span></tt> option in the client configuration
+must be included in the <tt class="docutils literal"><span class="pre">--data-ciphers</span></tt> option of the server to allow
+the client to connect. Otherwise the client will be sent the <tt class="docutils literal">AUTH_FAILED</tt>
+message that indicates no shared cipher.</p>
+<p>If the client is 2.3 or older and has been configured with the
+<tt class="docutils literal"><span class="pre">--enable-small</span></tt>  <code>./configure</code> argument, using
+<tt class="docutils literal"><span class="pre">data-ciphers-fallback</span> cipher</tt> in the server config file with the explicit
+cipher used by the client is necessary.</p>
+</div>
+<div class="section" id="openvpn-2-4-server">
+<h2>OpenVPN 2.4 server</h2>
+<p>When a client indicates support for <cite>AES-128-GCM</cite> and <cite>AES-256-GCM</cite>
+(with <tt class="docutils literal">IV_NCP=2</tt>) an OpenVPN 2.4 server will send the first
+cipher of the <tt class="docutils literal"><span class="pre">--ncp-ciphers</span></tt> to the OpenVPN client regardless of what
+the cipher is. To emulate the behaviour of an OpenVPN 2.4 client as close
+as possible and have compatibility to a setup that depends on this quirk,
+adding  <cite>AES-128-GCM</cite> and <cite>AES-256-GCM</cite> to the client's <tt class="docutils literal"><span class="pre">--data-ciphers</span></tt>
+option is required. OpenVPN 2.5+ will only announce the <tt class="docutils literal">IV_NCP=2</tt> flag if
+those ciphers are present.</p>
+</div>
+<div class="section" id="openvpn-2-3-and-older-servers-and-servers-with-ncp-disable">
+<h2>OpenVPN 2.3 and older servers (and servers with <tt class="docutils literal"><span class="pre">--ncp-disable</span></tt>)</h2>
+<p>The cipher used by the server must be included in <tt class="docutils literal"><span class="pre">--data-ciphers</span></tt> to
+allow the client connecting to a server without cipher negotiation
+support.
+(For compatibility OpenVPN 2.5 will also accept the cipher set with
+<tt class="docutils literal"><span class="pre">--cipher</span></tt>)</p>
+<p>If the server is 2.3 or older and  has been configured with the
+<tt class="docutils literal"><span class="pre">--enable-small</span></tt> <code>./configure</code> argument, adding
+<tt class="docutils literal"><span class="pre">data-ciphers-fallback</span> cipher</tt> to the client config with the explicit
+cipher used by the server is necessary.</p>
+</div>
+<div class="section" id="blowfish-in-cbc-mode-bf-cbc-deprecation">
+<h2>Blowfish in CBC mode (BF-CBC) deprecation</h2>
+<p>The <tt class="docutils literal"><span class="pre">--cipher</span></tt> option defaulted to <tt class="docutils literal"><span class="pre">BF-CBC</span></tt> in OpenVPN 2.4 and older
+version. The default was never changed to ensure backwards compatibility.
+In OpenVPN 2.5 this behaviour has now been changed so that if the <tt class="docutils literal"><span class="pre">--cipher</span></tt>
+is not explicitly set it does not allow the weak <tt class="docutils literal"><span class="pre">BF-CBC</span></tt> cipher any more
+and needs to explicitly added as <tt class="docutils literal"><span class="pre">--cipher</span> <span class="pre">BFC-CBC</span></tt> or added to
+<tt class="docutils literal"><span class="pre">--data-ciphers</span></tt>.</p>
+<p>We strongly recommend to switching away from BF-CBC to a
+more secure cipher as soon as possible instead.</p>
+</div>
+</div>
+<div class="section" id="network-configuration">
+<h1>NETWORK CONFIGURATION</h1>
+<p>OpenVPN consists of two sides of network configuration.  One side is the
+<em>link</em> between the local and remote side, the other side is the <em>virtual
+network adapter</em> (tun/tap device).</p>
+<div class="section" id="link-options">
+<h2>Link Options</h2>
+<p>This link options section covers options related to the connection between
+the local and the remote host.</p>
+<table class="docutils option-list" frame="void" rules="none">
+<col class="option" />
+<col class="description" />
+<tbody valign="top">
+<tr><td class="option-group" colspan="2">
+<kbd><span class="option">--bind <var>keywords</var></span></kbd></td>
+</tr>
+<tr><td>&nbsp;</td><td><p class="first">Bind to local address and port. This is the default unless any of
+<tt class="docutils literal"><span class="pre">--proto</span> <span class="pre">tcp-client</span></tt> , <tt class="docutils literal"><span class="pre">--http-proxy</span></tt> or <tt class="docutils literal"><span class="pre">--socks-proxy</span></tt> are used.</p>
+<p class="last">If the optional <code>ipv6only</code> keyword is present OpenVPN will bind only
+to IPv6 (as opposed to IPv6 and IPv4) when a IPv6 socket is opened.</p>
+</td></tr>
+<tr><td class="option-group">
+<kbd><span class="option">--float</span></kbd></td>
+<td><p class="first">Allow remote peer to change its IP address and/or port number, such as
+due to DHCP (this is the default if <tt class="docutils literal"><span class="pre">--remote</span></tt> is not used).
+<tt class="docutils literal"><span class="pre">--float</span></tt> when specified with <tt class="docutils literal"><span class="pre">--remote</span></tt> allows an OpenVPN session
+to initially connect to a peer at a known address, however if packets
+arrive from a new address and pass all authentication tests, the new
+address will take control of the session. This is useful when you are
+connecting to a peer which holds a dynamic address such as a dial-in
+user or DHCP client.</p>
+<p class="last">Essentially, <tt class="docutils literal"><span class="pre">--float</span></tt> tells OpenVPN to accept authenticated packets
+from any address, not only the address which was specified in the
+<tt class="docutils literal"><span class="pre">--remote</span></tt> option.</p>
+</td></tr>
+<tr><td class="option-group">
+<kbd><span class="option">--fragment <var>max</var></span></kbd></td>
+<td><p class="first">Enable internal datagram fragmentation so that no UDP datagrams are sent
+which are larger than <tt class="docutils literal">max</tt> bytes.</p>
+<p>The <tt class="docutils literal">max</tt> parameter is interpreted in the same way as the
+<tt class="docutils literal"><span class="pre">--link-mtu</span></tt> parameter, i.e. the UDP packet size after encapsulation
+overhead has been added in, but not including the UDP header itself.</p>
+<p>The <tt class="docutils literal"><span class="pre">--fragment</span></tt> option only makes sense when you are using the UDP
+protocol (<tt class="docutils literal"><span class="pre">--proto</span> udp</tt>).</p>
+<p><tt class="docutils literal"><span class="pre">--fragment</span></tt> adds 4 bytes of overhead per datagram.</p>
+<p>See the <tt class="docutils literal"><span class="pre">--mssfix</span></tt> option below for an important related option to
+<tt class="docutils literal"><span class="pre">--fragment</span></tt>.</p>
+<p>It should also be noted that this option is not meant to replace UDP
+fragmentation at the IP stack level. It is only meant as a last resort
+when path MTU discovery is broken. Using this option is less efficient
+than fixing path MTU discovery for your IP link and using native IP
+fragmentation instead.</p>
+<p class="last">Having said that, there are circumstances where using OpenVPN's internal
+fragmentation capability may be your only option, such as tunneling a
+UDP multicast stream which requires fragmentation.</p>
+</td></tr>
+<tr><td class="option-group" colspan="2">
+<kbd><span class="option">--keepalive <var>args</var></span></kbd></td>
+</tr>
+<tr><td>&nbsp;</td><td><p class="first">A helper directive designed to simplify the expression of <tt class="docutils literal"><span class="pre">--ping</span></tt> and
+<tt class="docutils literal"><span class="pre">--ping-restart</span></tt>.</p>
+<p>Valid syntax:</p>
+<pre class="literal-block">
+keepalive interval timeout
+</pre>
+<p>This option can be used on both client and server side, but it is enough
+to add this on the server side as it will push appropriate <tt class="docutils literal"><span class="pre">--ping</span></tt>
+and <tt class="docutils literal"><span class="pre">--ping-restart</span></tt> options to the client. If used on both server and
+client, the values pushed from server will override the client local
+values.</p>
+<p>The <tt class="docutils literal">timeout</tt> argument will be twice as long on the server side. This
+ensures that a timeout is detected on client side before the server side
+drops the connection.</p>
+<p>For example, <tt class="docutils literal"><span class="pre">--keepalive</span> 10 60</tt> expands as follows:</p>
+<pre class="last literal-block">
+if mode server:
+    ping 10                    # Argument: interval
+    ping-restart 120           # Argument: timeout*2
+    push &quot;ping 10&quot;             # Argument: interval
+    push &quot;ping-restart 60&quot;     # Argument: timeout
+else
+    ping 10                    # Argument: interval
+    ping-restart 60            # Argument: timeout
+</pre>
+</td></tr>
+<tr><td class="option-group">
+<kbd><span class="option">--link-mtu <var>n</var></span></kbd></td>
+<td>Sets an upper bound on the size of UDP packets which are sent between
+OpenVPN peers. <em>It's best not to set this parameter unless you know what
+you're doing.</em></td></tr>
+<tr><td class="option-group">
+<kbd><span class="option">--local <var>host</var></span></kbd></td>
+<td>Local host name or IP address for bind. If specified, OpenVPN will bind
+to this address only. If unspecified, OpenVPN will bind to all
+interfaces.</td></tr>
+<tr><td class="option-group">
+<kbd><span class="option">--lport <var>port</var></span></kbd></td>
+<td>Set local TCP/UDP port number or name. Cannot be used together with
+<tt class="docutils literal"><span class="pre">--nobind</span></tt> option.</td></tr>
+<tr><td class="option-group">
+<kbd><span class="option">--mark <var>value</var></span></kbd></td>
+<td>Mark encrypted packets being sent with value. The mark value can be
+matched in policy routing and packetfilter rules. This option is only
+supported in Linux and does nothing on other operating systems.</td></tr>
+<tr><td class="option-group">
+<kbd><span class="option">--mode <var>m</var></span></kbd></td>
+<td>Set OpenVPN major mode. By default, OpenVPN runs in point-to-point mode
+(<code>p2p</code>). OpenVPN 2.0 introduces a new mode (<code>server</code>) which
+implements a multi-client server capability.</td></tr>
+<tr><td class="option-group">
+<kbd><span class="option">--mssfix <var>max</var></span></kbd></td>
+<td><p class="first">Announce to TCP sessions running over the tunnel that they should limit
+their send packet sizes such that after OpenVPN has encapsulated them,
+the resulting UDP packet size that OpenVPN sends to its peer will not
+exceed <tt class="docutils literal">max</tt> bytes. The default value is <code>1450</code>.</p>
+<p>The <tt class="docutils literal">max</tt> parameter is interpreted in the same way as the
+<tt class="docutils literal"><span class="pre">--link-mtu</span></tt> parameter, i.e. the UDP packet size after encapsulation
+overhead has been added in, but not including the UDP header itself.
+Resulting packet would be at most 28 bytes larger for IPv4 and 48 bytes
+for IPv6 (20/40 bytes for IP header and 8 bytes for UDP header). Default
+value of 1450 allows IPv4 packets to be transmitted over a link with MTU
+1473 or higher without IP level fragmentation.</p>
+<p>The <tt class="docutils literal"><span class="pre">--mssfix</span></tt> option only makes sense when you are using the UDP
+protocol for OpenVPN peer-to-peer communication, i.e. <tt class="docutils literal"><span class="pre">--proto</span> udp</tt>.</p>
+<p><tt class="docutils literal"><span class="pre">--mssfix</span></tt> and <tt class="docutils literal"><span class="pre">--fragment</span></tt> can be ideally used together, where
+<tt class="docutils literal"><span class="pre">--mssfix</span></tt> will try to keep TCP from needing packet fragmentation in
+the first place, and if big packets come through anyhow (from protocols
+other than TCP), <tt class="docutils literal"><span class="pre">--fragment</span></tt> will internally fragment them.</p>
+<p>Both <tt class="docutils literal"><span class="pre">--fragment</span></tt> and <tt class="docutils literal"><span class="pre">--mssfix</span></tt> are designed to work around cases
+where Path MTU discovery is broken on the network path between OpenVPN
+peers.</p>
+<p>The usual symptom of such a breakdown is an OpenVPN connection which
+successfully starts, but then stalls during active usage.</p>
+<p>If <tt class="docutils literal"><span class="pre">--fragment</span></tt> and <tt class="docutils literal"><span class="pre">--mssfix</span></tt> are used together, <tt class="docutils literal"><span class="pre">--mssfix</span></tt> will
+take its default <tt class="docutils literal">max</tt> parameter from the <tt class="docutils literal"><span class="pre">--fragment</span> max</tt> option.</p>
+<p>Therefore, one could lower the maximum UDP packet size to 1300 (a good
+first try for solving MTU-related connection problems) with the
+following options:</p>
+<pre class="last literal-block">
+--tun-mtu 1500 --fragment 1300 --mssfix
+</pre>
+</td></tr>
+<tr><td class="option-group" colspan="2">
+<kbd><span class="option">--mtu-disc <var>type</var></span></kbd></td>
+</tr>
+<tr><td>&nbsp;</td><td><p class="first">Should we do Path MTU discovery on TCP/UDP channel? Only supported on
+OSes such as Linux that supports the necessary system call to set.</p>
+<p>Valid types:</p>
+<p><code>no</code>      Never send DF (Don't Fragment) frames</p>
+<p><code>maybe</code>   Use per-route hints</p>
+<p class="last"><code>yes</code>     Always DF (Don't Fragment)</p>
+</td></tr>
+<tr><td class="option-group">
+<kbd><span class="option">--mtu-test</span></kbd></td>
+<td>To empirically measure MTU on connection startup, add the <tt class="docutils literal"><span class="pre">--mtu-test</span></tt>
+option to your configuration. OpenVPN will send ping packets of various
+sizes to the remote peer and measure the largest packets which were
+successfully received. The <tt class="docutils literal"><span class="pre">--mtu-test</span></tt> process normally takes about 3
+minutes to complete.</td></tr>
+<tr><td class="option-group">
+<kbd><span class="option">--nobind</span></kbd></td>
+<td>Do not bind to local address and port. The IP stack will allocate a
+dynamic port for returning packets. Since the value of the dynamic port
+could not be known in advance by a peer, this option is only suitable
+for peers which will be initiating connections by using the --remote
+option.</td></tr>
+<tr><td class="option-group">
+<kbd><span class="option">--passtos</span></kbd></td>
+<td>Set the TOS field of the tunnel packet to what the payload's TOS is.</td></tr>
+<tr><td class="option-group">
+<kbd><span class="option">--ping <var>n</var></span></kbd></td>
+<td><p class="first">Ping remote over the TCP/UDP control channel if no packets have been
+sent for at least <tt class="docutils literal">n</tt> seconds (specify <tt class="docutils literal"><span class="pre">--ping</span></tt> on both peers to
+cause ping packets to be sent in both directions since OpenVPN ping
+packets are not echoed like IP ping packets). When used in one of
+OpenVPN's secure modes (where <tt class="docutils literal"><span class="pre">--secret</span></tt>, <tt class="docutils literal"><span class="pre">--tls-server</span></tt> or
+<tt class="docutils literal"><span class="pre">--tls-client</span></tt> is specified), the ping packet will be
+cryptographically secure.</p>
+<p>This option has two intended uses:</p>
+<ol class="last arabic simple">
+<li>Compatibility with stateful firewalls. The periodic ping will ensure
+that a stateful firewall rule which allows OpenVPN UDP packets to
+pass will not time out.</li>
+<li>To provide a basis for the remote to test the existence of its peer
+using the <tt class="docutils literal"><span class="pre">--ping-exit</span></tt> option.</li>
+</ol>
+</td></tr>
+<tr><td class="option-group">
+<kbd><span class="option">--ping-exit <var>n</var></span></kbd></td>
+<td><p class="first">Causes OpenVPN to exit after <tt class="docutils literal">n</tt> seconds pass without reception of a
+ping or other packet from remote. This option can be combined with
+<tt class="docutils literal"><span class="pre">--inactive</span></tt>, <tt class="docutils literal"><span class="pre">--ping</span></tt> and <tt class="docutils literal"><span class="pre">--ping-exit</span></tt> to create a two-tiered
+inactivity disconnect.</p>
+<p>For example,</p>
+<pre class="literal-block">
+openvpn [options...] --inactive 3600 --ping 10 --ping-exit 60
+</pre>
+<p class="last">when used on both peers will cause OpenVPN to exit within 60 seconds if
+its peer disconnects, but will exit after one hour if no actual tunnel
+data is exchanged.</p>
+</td></tr>
+<tr><td class="option-group" colspan="2">
+<kbd><span class="option">--ping-restart <var>n</var></span></kbd></td>
+</tr>
+<tr><td>&nbsp;</td><td><p class="first">Similar to <tt class="docutils literal"><span class="pre">--ping-exit</span></tt>, but trigger a <code>SIGUSR1</code> restart after
+<tt class="docutils literal">n</tt> seconds pass without reception of a ping or other packet from
+remote.</p>
+<p>This option is useful in cases where the remote peer has a dynamic IP
+address and a low-TTL DNS name is used to track the IP address using a
+service such as <a class="reference external" href="http://dyndns.org/">http://dyndns.org/</a> + a dynamic DNS client such as
+<tt class="docutils literal">ddclient</tt>.</p>
+<p>If the peer cannot be reached, a restart will be triggered, causing the
+hostname used with <tt class="docutils literal"><span class="pre">--remote</span></tt> to be re-resolved (if <tt class="docutils literal"><span class="pre">--resolv-retry</span></tt>
+is also specified).</p>
+<p>In server mode, <tt class="docutils literal"><span class="pre">--ping-restart</span></tt>, <tt class="docutils literal"><span class="pre">--inactive</span></tt> or any other type of
+internally generated signal will always be applied to individual client
+instance objects, never to whole server itself. Note also in server mode
+that any internally generated signal which would normally cause a
+restart, will cause the deletion of the client instance object instead.</p>
+<p>In client mode, the <tt class="docutils literal"><span class="pre">--ping-restart</span></tt> parameter is set to 120 seconds
+by default. This default will hold until the client pulls a replacement
+value from the server, based on the <tt class="docutils literal"><span class="pre">--keepalive</span></tt> setting in the
+server configuration. To disable the 120 second default, set
+<tt class="docutils literal"><span class="pre">--ping-restart</span> 0</tt> on the client.</p>
+<p>See the signals section below for more information on <code>SIGUSR1</code>.</p>
+<p>Note that the behavior of <tt class="docutils literal">SIGUSR1</tt> can be modified by the
+<tt class="docutils literal"><span class="pre">--persist-tun</span></tt>, <tt class="docutils literal"><span class="pre">--persist-key</span></tt>, <tt class="docutils literal"><span class="pre">--persist-local-ip</span></tt> and
+<tt class="docutils literal"><span class="pre">--persist-remote-ip</span></tt> options.</p>
+<p class="last">Also note that <tt class="docutils literal"><span class="pre">--ping-exit</span></tt> and <tt class="docutils literal"><span class="pre">--ping-restart</span></tt> are mutually
+exclusive and cannot be used together.</p>
+</td></tr>
+<tr><td class="option-group" colspan="2">
+<kbd><span class="option">--ping-timer-rem</span></kbd></td>
+</tr>
+<tr><td>&nbsp;</td><td>Run the <tt class="docutils literal"><span class="pre">--ping-exit</span></tt> / <tt class="docutils literal"><span class="pre">--ping-restart</span></tt> timer only if we have a
+remote address. Use this option if you are starting the daemon in listen
+mode (i.e. without an explicit <tt class="docutils literal"><span class="pre">--remote</span></tt> peer), and you don't want to
+start clocking timeouts until a remote peer connects.</td></tr>
+<tr><td class="option-group">
+<kbd><span class="option">--proto <var>p</var></span></kbd></td>
+<td><p class="first">Use protocol <tt class="docutils literal">p</tt> for communicating with remote host. <tt class="docutils literal">p</tt> can be
+<code>udp</code>, <code>tcp-client</code>, or <code>tcp-server</code>.</p>
+<p>The default protocol is <code>udp</code> when <tt class="docutils literal"><span class="pre">--proto</span></tt> is not specified.</p>
+<p>For UDP operation, <tt class="docutils literal"><span class="pre">--proto</span> udp</tt> should be specified on both peers.</p>
+<p>For TCP operation, one peer must use <tt class="docutils literal"><span class="pre">--proto</span> <span class="pre">tcp-server</span></tt> and the
+other must use <tt class="docutils literal"><span class="pre">--proto</span> <span class="pre">tcp-client</span></tt>. A peer started with
+<code>tcp-server</code> will wait indefinitely for an incoming connection. A peer
+started with <code>tcp-client</code> will attempt to connect, and if that fails,
+will sleep for 5 seconds (adjustable via the <tt class="docutils literal"><span class="pre">--connect-retry</span></tt> option)
+and try again infinite or up to N retries (adjustable via the
+<tt class="docutils literal"><span class="pre">--connect-retry-max</span></tt> option). Both TCP client and server will
+simulate a SIGUSR1 restart signal if either side resets the connection.</p>
+<p>OpenVPN is designed to operate optimally over UDP, but TCP capability is
+provided for situations where UDP cannot be used. In comparison with
+UDP, TCP will usually be somewhat less efficient and less robust when
+used over unreliable or congested networks.</p>
+<p>This article outlines some of problems with tunneling IP over TCP:
+<a class="reference external" href="http://sites.inka.de/sites/bigred/devel/tcp-tcp.html">http://sites.inka.de/sites/bigred/devel/tcp-tcp.html</a></p>
+<p class="last">There are certain cases, however, where using TCP may be advantageous
+from a security and robustness perspective, such as tunneling non-IP or
+application-level UDP protocols, or tunneling protocols which don't
+possess a built-in reliability layer.</p>
+</td></tr>
+<tr><td class="option-group">
+<kbd><span class="option">--port <var>port</var></span></kbd></td>
+<td>TCP/UDP port number or port name for both local and remote (sets both
+<tt class="docutils literal"><span class="pre">--lport</span></tt> and <tt class="docutils literal"><span class="pre">--rport</span></tt> options to given port). The current default
+of 1194 represents the official IANA port number assignment for OpenVPN
+and has been used since version 2.0-beta17. Previous versions used port
+5000 as the default.</td></tr>
+<tr><td class="option-group">
+<kbd><span class="option">--rport <var>port</var></span></kbd></td>
+<td>Set TCP/UDP port number or name used by the <tt class="docutils literal"><span class="pre">--remote</span></tt> option. The
+port can also be set directly using the <tt class="docutils literal"><span class="pre">--remote</span></tt> option.</td></tr>
+<tr><td class="option-group" colspan="2">
+<kbd><span class="option">--replay-window <var>args</var></span></kbd></td>
+</tr>
+<tr><td>&nbsp;</td><td><p class="first">Modify the replay protection sliding-window size and time window.</p>
+<p>Valid syntax:</p>
+<pre class="literal-block">
+replay-window n [t]
+</pre>
+<p>Use a replay protection sliding-window of size <strong>n</strong> and a time window
+of <strong>t</strong> seconds.</p>
+<p>By default <strong>n</strong> is 64 (the IPSec default) and <strong>t</strong> is 15 seconds.</p>
+<p>This option is only relevant in UDP mode, i.e. when either <strong>--proto
+udp</strong> is specified, or no <strong>--proto</strong> option is specified.</p>
+<p>When OpenVPN tunnels IP packets over UDP, there is the possibility that
+packets might be dropped or delivered out of order. Because OpenVPN,
+like IPSec, is emulating the physical network layer, it will accept an
+out-of-order packet sequence, and will deliver such packets in the same
+order they were received to the TCP/IP protocol stack, provided they
+satisfy several constraints.</p>
+<ol class="loweralpha simple">
+<li>The packet cannot be a replay (unless <tt class="docutils literal"><span class="pre">--no-replay</span></tt> is
+specified, which disables replay protection altogether).</li>
+<li>If a packet arrives out of order, it will only be accepted if
+the difference between its sequence number and the highest sequence
+number received so far is less than <tt class="docutils literal">n</tt>.</li>
+<li>If a packet arrives out of order, it will only be accepted if it
+arrives no later than <tt class="docutils literal">t</tt> seconds after any packet containing a higher
+sequence number.</li>
+</ol>
+<p>If you are using a network link with a large pipeline (meaning that the
+product of bandwidth and latency is high), you may want to use a larger
+value for <tt class="docutils literal">n</tt>. Satellite links in particular often require this.</p>
+<p>If you run OpenVPN at <tt class="docutils literal"><span class="pre">--verb</span> 4</tt>, you will see the message
+&quot;Replay-window backtrack occurred [x]&quot; every time the maximum sequence
+number backtrack seen thus far increases. This can be used to calibrate
+<tt class="docutils literal">n</tt>.</p>
+<p>There is some controversy on the appropriate method of handling packet
+reordering at the security layer.</p>
+<p>Namely, to what extent should the security layer protect the
+encapsulated protocol from attacks which masquerade as the kinds of
+normal packet loss and reordering that occur over IP networks?</p>
+<p>The IPSec and OpenVPN approach is to allow packet reordering within a
+certain fixed sequence number window.</p>
+<p>OpenVPN adds to the IPSec model by limiting the window size in time as
+well as sequence space.</p>
+<p>OpenVPN also adds TCP transport as an option (not offered by IPSec) in
+which case OpenVPN can adopt a very strict attitude towards message
+deletion and reordering: Don't allow it. Since TCP guarantees
+reliability, any packet loss or reordering event can be assumed to be an
+attack.</p>
+<p>In this sense, it could be argued that TCP tunnel transport is preferred
+when tunneling non-IP or UDP application protocols which might be
+vulnerable to a message deletion or reordering attack which falls within
+the normal operational parameters of IP networks.</p>
+<p class="last">So I would make the statement that one should never tunnel a non-IP
+protocol or UDP application protocol over UDP, if the protocol might be
+vulnerable to a message deletion or reordering attack that falls within
+the normal operating parameters of what is to be expected from the
+physical IP layer. The problem is easily fixed by simply using TCP as
+the VPN transport layer.</p>
+</td></tr>
+<tr><td class="option-group" colspan="2">
+<kbd><span class="option">--replay-persist <var>file</var></span></kbd></td>
+</tr>
+<tr><td>&nbsp;</td><td><p class="first">Persist replay-protection state across sessions using <tt class="docutils literal">file</tt> to save
+and reload the state.</p>
+<p>This option will strengthen protection against replay attacks,
+especially when you are using OpenVPN in a dynamic context (such as with
+<tt class="docutils literal"><span class="pre">--inetd</span></tt>) when OpenVPN sessions are frequently started and stopped.</p>
+<p>This option will keep a disk copy of the current replay protection state
+(i.e. the most recent packet timestamp and sequence number received from
+the remote peer), so that if an OpenVPN session is stopped and
+restarted, it will reject any replays of packets which were already
+received by the prior session.</p>
+<p class="last">This option only makes sense when replay protection is enabled (the
+default) and you are using either <tt class="docutils literal"><span class="pre">--secret</span></tt> (shared-secret key mode)
+or TLS mode with <tt class="docutils literal"><span class="pre">--tls-auth</span></tt>.</p>
+</td></tr>
+<tr><td class="option-group" colspan="2">
+<kbd><span class="option">--socket-flags <var>flags</var></span></kbd></td>
+</tr>
+<tr><td>&nbsp;</td><td><p class="first">Apply the given flags to the OpenVPN transport socket. Currently, only
+<code>TCP_NODELAY</code> is supported.</p>
+<p>The <code>TCP_NODELAY</code> socket flag is useful in TCP mode, and causes the
+kernel to send tunnel packets immediately over the TCP connection without
+trying to group several smaller packets into a larger packet.  This can
+result in a considerably improvement in latency.</p>
+<p class="last">This option is pushable from server to client, and should be used on
+both client and server for maximum effect.</p>
+</td></tr>
+<tr><td class="option-group">
+<kbd><span class="option">--tcp-nodelay</span></kbd></td>
+<td><p class="first">This macro sets the <code>TCP_NODELAY</code> socket flag on the server as well
+as pushes it to connecting clients. The <code>TCP_NODELAY</code> flag disables
+the Nagle algorithm on TCP sockets causing packets to be transmitted
+immediately with low latency, rather than waiting a short period of time
+in order to aggregate several packets into a larger containing packet.
+In VPN applications over TCP, <code>TCP_NODELAY</code> is generally a good
+latency optimization.</p>
+<p>The macro expands as follows:</p>
+<pre class="last literal-block">
+if mode server:
+    socket-flags TCP_NODELAY
+    push &quot;socket-flags TCP_NODELAY&quot;
+</pre>
+</td></tr>
+</tbody>
+</table>
+</div>
+<div class="section" id="virtual-network-adapter-vpn-interface">
+<h2>Virtual Network Adapter (VPN interface)</h2>
+<p>Options in this section relates to configuration of the virtual tun/tap
+network interface, including setting the VPN IP address and network
+routing.</p>
+<table class="docutils option-list" frame="void" rules="none">
+<col class="option" />
+<col class="description" />
+<tbody valign="top">
+<tr><td class="option-group" colspan="2">
+<kbd><span class="option">--bind-dev <var>device</var></span></kbd></td>
+</tr>
+<tr><td>&nbsp;</td><td>(Linux only) Set <tt class="docutils literal">device</tt> to bind the server socket to a
+<a class="reference internal" href="#virtual-routing-and-forwarding">Virtual Routing and Forwarding</a> device</td></tr>
+<tr><td class="option-group">
+<kbd><span class="option">--block-ipv6</span></kbd></td>
+<td><p class="first">On the client, instead of sending IPv6 packets over the VPN tunnel, all
+IPv6 packets are answered with an ICMPv6 no route host message. On the
+server, all IPv6 packets from clients are answered with an ICMPv6 no
+route to host message. This options is intended for cases when IPv6
+should be blocked and other options are not available. <tt class="docutils literal"><span class="pre">--block-ipv6</span></tt>
+will use the remote IPv6 as source address of the ICMPv6 packets if set,
+otherwise will use <code>fe80::7</code> as source address.</p>
+<p>For this option to make sense you actually have to route traffic to the
+tun interface. The following example config block would send all IPv6
+traffic to OpenVPN and answer all requests with no route to host,
+effectively blocking IPv6.</p>
+<dl class="last docutils">
+<dt><strong>Client config</strong></dt>
+<dd><pre class="first last literal-block">
+--ifconfig-ipv6 fd15:53b6:dead::2/64 fd15:53b6:dead::1
+--redirect-gateway ipv6
+--block-ipv6
+</pre>
+</dd>
+<dt><strong>Server config</strong></dt>
+<dd><p class="first">Push a &quot;valid&quot; ipv6 config to the client and block on the server</p>
+<pre class="last literal-block">
+--push &quot;ifconfig-ipv6 fd15:53b6:dead::2/64 fd15:53b6:dead::1&quot;
+--push &quot;redirect-gateway ipv6&quot;
+--block-ipv6
+</pre>
+</dd>
+</dl>
+</td></tr>
+<tr><td class="option-group">
+<kbd><span class="option">--dev <var>device</var></span></kbd></td>
+<td><p class="first">TUN/TAP virtual network device which can be <code>tunX</code>, <code>tapX</code>,
+<code>null</code> or an arbitrary name string (<code>X</code> can be omitted for
+a dynamic device.)</p>
+<p>See examples section below for an example on setting up a TUN device.</p>
+<p>You must use either tun devices on both ends of the connection or tap
+devices on both ends. You cannot mix them, as they represent different
+underlying network layers:</p>
+<dl class="docutils">
+<dt><code>tun</code></dt>
+<dd>devices encapsulate IPv4 or IPv6 (OSI Layer 3)</dd>
+<dt><code>tap</code></dt>
+<dd>devices encapsulate Ethernet 802.3 (OSI Layer 2).</dd>
+</dl>
+<p>Valid syntaxes:</p>
+<pre class="literal-block">
+dev tun2
+dev tap4
+dev ovpn
+</pre>
+<p class="last">When the device name starts with <code>tun</code> or <code>tap</code>, the device
+type is extracted automatically.  Otherwise the <tt class="docutils literal"><span class="pre">--dev-type</span></tt> option
+needs to be added as well.</p>
+</td></tr>
+<tr><td class="option-group" colspan="2">
+<kbd><span class="option">--dev-node <var>node</var></span></kbd></td>
+</tr>
+<tr><td>&nbsp;</td><td><p class="first">Explicitly set the device node rather than using <code>/dev/net/tun</code>,
+<code>/dev/tun</code>, <code>/dev/tap</code>, etc. If OpenVPN cannot figure out
+whether <tt class="docutils literal">node</tt> is a TUN or TAP device based on the name, you should
+also specify <tt class="docutils literal"><span class="pre">--dev-type</span> tun</tt> or <tt class="docutils literal"><span class="pre">--dev-type</span> tap</tt>.</p>
+<p>Under Mac OS X this option can be used to specify the default tun
+implementation. Using <tt class="docutils literal"><span class="pre">--dev-node</span> utun</tt> forces usage of the native
+Darwin tun kernel support. Use <tt class="docutils literal"><span class="pre">--dev-node</span> utunN</tt> to select a specific
+utun instance. To force using the <code>tun.kext</code> (<code>/dev/tunX</code>)
+use <tt class="docutils literal"><span class="pre">--dev-node</span> tun</tt>. When not specifying a <tt class="docutils literal"><span class="pre">--dev-node</span></tt> option
+openvpn will first try to open utun, and fall back to tun.kext.</p>
+<p class="last">On Windows systems, select the TAP-Win32 adapter which is named <tt class="docutils literal">node</tt>
+in the Network Connections Control Panel or the raw GUID of the adapter
+enclosed by braces. The <tt class="docutils literal"><span class="pre">--show-adapters</span></tt> option under Windows can
+also be used to enumerate all available TAP-Win32 adapters and will show
+both the network connections control panel name and the GUID for each
+TAP-Win32 adapter.</p>
+</td></tr>
+<tr><td class="option-group" colspan="2">
+<kbd><span class="option">--dev-type <var>device-type</var></span></kbd></td>
+</tr>
+<tr><td>&nbsp;</td><td>Which device type are we using? <tt class="docutils literal"><span class="pre">device-type</span></tt> should be <code>tun</code>
+(OSI Layer 3) or <code>tap</code> (OSI Layer 2). Use this option only if
+the TUN/TAP device used with <tt class="docutils literal"><span class="pre">--dev</span></tt> does not begin with <code>tun</code>
+or <code>tap</code>.</td></tr>
+<tr><td class="option-group" colspan="2">
+<kbd><span class="option">--dhcp-option <var>args</var></span></kbd></td>
+</tr>
+<tr><td>&nbsp;</td><td><p class="first">Set additional network parameters on supported platforms. May be specified
+on the client or pushed from the server. On Windows these options are
+handled by the <tt class="docutils literal"><span class="pre">tap-windows6</span></tt> driver by default or directly by OpenVPN
+if dhcp is disabled or the <tt class="docutils literal">wintun</tt> driver is in use. The
+<tt class="docutils literal">OpenVPN for Android</tt> client also handles them internally.</p>
+<p>On all other platforms these options are only saved in the client's
+environment under the name <code>foreign_options_{n}</code> before the
+<tt class="docutils literal"><span class="pre">--up</span></tt> script is called. A plugin or an <tt class="docutils literal"><span class="pre">--up</span></tt> script must be used to
+pick up and interpret these as required. Many Linux distributions include
+such scripts and some third-party user interfaces such as tunnelblick also
+come with scripts that process these options.</p>
+<p>Valid syntax:</p>
+<pre class="literal-block">
+dhcp-options type [parm]
+</pre>
+<dl class="last docutils">
+<dt><code>DOMAIN</code> <tt class="docutils literal">name</tt></dt>
+<dd>Set Connection-specific DNS Suffix to <code>name</code>.</dd>
+<dt><code>DOMAIN-SEARCH</code> <tt class="docutils literal">name</tt></dt>
+<dd>Add <code>name</code> to the domain search list.
+Repeat this option to add more entries. Up to
+10 domains are supported.</dd>
+<dt><code>DNS</code> <tt class="docutils literal">address</tt></dt>
+<dd><p class="first">Set primary domain name server IPv4 or IPv6 address.
+Repeat this option to set secondary DNS server addresses.</p>
+<p class="last">Note: DNS IPv6 servers are currently set using netsh (the existing
+DHCP code can only do IPv4 DHCP, and that protocol only permits
+IPv4 addresses anywhere). The option will be put into the
+environment, so an <tt class="docutils literal"><span class="pre">--up</span></tt> script could act upon it if needed.</p>
+</dd>
+<dt><code>WINS</code> <tt class="docutils literal">address</tt></dt>
+<dd>Set primary WINS server address (NetBIOS over TCP/IP Name Server).
+Repeat this option to set secondary WINS server addresses.</dd>
+<dt><code>NBDD</code> <tt class="docutils literal">address</tt></dt>
+<dd>Set primary NBDD server address (NetBIOS over TCP/IP Datagram
+Distribution Server). Repeat this option to set secondary NBDD
+server addresses.</dd>
+<dt><code>NTP</code> <tt class="docutils literal">address</tt></dt>
+<dd>Set primary NTP server address (Network Time Protocol).
+Repeat this option to set secondary NTP server addresses.</dd>
+<dt><code>NBT</code> <tt class="docutils literal">type</tt></dt>
+<dd><p class="first">Set NetBIOS over TCP/IP Node type. Possible options:</p>
+<dl class="last docutils">
+<dt><code>1</code></dt>
+<dd>b-node (broadcasts)</dd>
+<dt><code>2</code></dt>
+<dd>p-node (point-to-point name queries to a WINS server)</dd>
+<dt><code>4</code></dt>
+<dd>m-node (broadcast then query name server)</dd>
+<dt><code>8</code></dt>
+<dd>h-node (query name server, then broadcast).</dd>
+</dl>
+</dd>
+<dt><code>NBS</code> <tt class="docutils literal"><span class="pre">scope-id</span></tt></dt>
+<dd>Set NetBIOS over TCP/IP Scope. A NetBIOS Scope ID provides an
+extended naming service for the NetBIOS over TCP/IP (Known as NBT)
+module. The primary purpose of a NetBIOS scope ID is to isolate
+NetBIOS traffic on a single network to only those nodes with the
+same NetBIOS scope ID. The NetBIOS scope ID is a character string
+that is appended to the NetBIOS name. The NetBIOS scope ID on two
+hosts must match, or the two hosts will not be able to communicate.
+The NetBIOS Scope ID also allows computers to use the same computer
+name, as they have different scope IDs. The Scope ID becomes a part
+of the NetBIOS name, making the name unique. (This description of
+NetBIOS scopes courtesy of <a class="reference external" href="mailto:NeonSurge&#64;abyss.com">NeonSurge&#64;abyss.com</a>)</dd>
+<dt><code>DISABLE-NBT</code></dt>
+<dd>Disable Netbios-over-TCP/IP.</dd>
+</dl>
+</td></tr>
+<tr><td class="option-group" colspan="2">
+<kbd><span class="option">--ifconfig <var>args</var></span></kbd></td>
+</tr>
+<tr><td>&nbsp;</td><td><p class="first">Set TUN/TAP adapter parameters. It requires the <em>IP address</em> of the local
+VPN endpoint. For TUN devices in point-to-point mode, the next argument
+must be the VPN IP address of the remote VPN endpoint. For TAP devices,
+or TUN devices used with <tt class="docutils literal"><span class="pre">--topology</span> subnet</tt>, the second argument
+is the subnet mask of the virtual network segment which is being created
+or connected to.</p>
+<p>For TUN devices, which facilitate virtual point-to-point IP connections
+(when used in <tt class="docutils literal"><span class="pre">--topology</span> net30</tt> or <tt class="docutils literal">p2p</tt> mode), the proper usage of
+<tt class="docutils literal"><span class="pre">--ifconfig</span></tt> is to use two private IP addresses which are not a member
+of any existing subnet which is in use. The IP addresses may be
+consecutive and should have their order reversed on the remote peer.
+After the VPN is established, by pinging <tt class="docutils literal">rn</tt>, you will be pinging
+across the VPN.</p>
+<p>For TAP devices, which provide the ability to create virtual ethernet
+segments, or TUN devices in <tt class="docutils literal"><span class="pre">--topology</span> subnet</tt> mode (which create
+virtual &quot;multipoint networks&quot;), <tt class="docutils literal"><span class="pre">--ifconfig</span></tt> is used to set an IP
+address and subnet mask just as a physical ethernet adapter would be
+similarly configured. If you are attempting to connect to a remote
+ethernet bridge, the IP address and subnet should be set to values which
+would be valid on the the bridged ethernet segment (note also that DHCP
+can be used for the same purpose).</p>
+<p>This option, while primarily a proxy for the <tt class="docutils literal">ifconfig</tt>(8) command,
+is designed to simplify TUN/TAP tunnel configuration by providing a
+standard interface to the different ifconfig implementations on
+different platforms.</p>
+<p><tt class="docutils literal"><span class="pre">--ifconfig</span></tt> parameters which are IP addresses can also be specified
+as a DNS or /etc/hosts file resolvable name.</p>
+<p>For TAP devices, <tt class="docutils literal"><span class="pre">--ifconfig</span></tt> should not be used if the TAP interface
+will be getting an IP address lease from a DHCP server.</p>
+<p>Examples:</p>
+<pre class="last literal-block">
+# tun device in net30/p2p mode
+ifconfig 10.8.0.2 10.8.0.1
+
+# tun/tap device in subnet mode
+ifconfig 10.8.0.2 255.255.255.0
+</pre>
+</td></tr>
+<tr><td class="option-group" colspan="2">
+<kbd><span class="option">--ifconfig-ipv6 <var>args</var></span></kbd></td>
+</tr>
+<tr><td>&nbsp;</td><td><p class="first">Configure an IPv6 address on the <em>tun</em> device.</p>
+<p>Valid syntax:</p>
+<pre class="literal-block">
+ifconfig-ipv6 ipv6addr/bits [ipv6remote]
+</pre>
+<p>The <tt class="docutils literal">ipv6addr/bits</tt> argument is the IPv6 address to use. The
+second parameter is used as route target for <tt class="docutils literal"><span class="pre">--route-ipv6</span></tt> if no
+gateway is specified.</p>
+<p class="last">The <tt class="docutils literal"><span class="pre">--topology</span></tt> option has no influence with <tt class="docutils literal"><span class="pre">--ifconfig-ipv6</span></tt></p>
+</td></tr>
+<tr><td class="option-group" colspan="2">
+<kbd><span class="option">--ifconfig-noexec</span></kbd></td>
+</tr>
+<tr><td>&nbsp;</td><td>Don't actually execute ifconfig/netsh commands, instead pass
+<tt class="docutils literal"><span class="pre">--ifconfig</span></tt> parameters to scripts using environmental variables.</td></tr>
+<tr><td class="option-group" colspan="2">
+<kbd><span class="option">--ifconfig-nowarn</span></kbd></td>
+</tr>
+<tr><td>&nbsp;</td><td><p class="first">Don't output an options consistency check warning if the <tt class="docutils literal"><span class="pre">--ifconfig</span></tt>
+option on this side of the connection doesn't match the remote side.
+This is useful when you want to retain the overall benefits of the
+options consistency check (also see <tt class="docutils literal"><span class="pre">--disable-occ</span></tt> option) while only
+disabling the ifconfig component of the check.</p>
+<p>For example, if you have a configuration where the local host uses
+<tt class="docutils literal"><span class="pre">--ifconfig</span></tt> but the remote host does not, use <tt class="docutils literal"><span class="pre">--ifconfig-nowarn</span></tt>
+on the local host.</p>
+<p class="last">This option will also silence warnings about potential address conflicts
+which occasionally annoy more experienced users by triggering &quot;false
+positive&quot; warnings.</p>
+</td></tr>
+<tr><td class="option-group" colspan="2">
+<kbd><span class="option">--lladdr <var>address</var></span></kbd></td>
+</tr>
+<tr><td>&nbsp;</td><td>Specify the link layer address, more commonly known as the MAC address.
+Only applied to TAP devices.</td></tr>
+<tr><td class="option-group">
+<kbd><span class="option">--persist-tun</span></kbd></td>
+<td><p class="first">Don't close and reopen TUN/TAP device or run up/down scripts across
+<code>SIGUSR1</code> or <tt class="docutils literal"><span class="pre">--ping-restart</span></tt> restarts.</p>
+<p class="last"><code>SIGUSR1</code> is a restart signal similar to <code>SIGHUP</code>, but which
+offers finer-grained control over reset options.</p>
+</td></tr>
+<tr><td class="option-group" colspan="2">
+<kbd><span class="option">--redirect-gateway <var>flags</var></span></kbd></td>
+</tr>
+<tr><td>&nbsp;</td><td><p class="first">Automatically execute routing commands to cause all outgoing IP traffic
+to be redirected over the VPN. This is a client-side option.</p>
+<p>This option performs three steps:</p>
+<ol class="arabic simple">
+<li>Create a static route for the <tt class="docutils literal"><span class="pre">--remote</span></tt> address which
+forwards to the pre-existing default gateway. This is done so that
+<tt class="docutils literal">(3)</tt> will not create a routing loop.</li>
+<li>Delete the default gateway route.</li>
+<li>Set the new default gateway to be the VPN endpoint address
+(derived either from <tt class="docutils literal"><span class="pre">--route-gateway</span></tt> or the second parameter to
+<tt class="docutils literal"><span class="pre">--ifconfig</span></tt> when <tt class="docutils literal"><span class="pre">--dev</span> tun</tt> is specified).</li>
+</ol>
+<p>When the tunnel is torn down, all of the above steps are reversed so
+that the original default route is restored.</p>
+<p>Option flags:</p>
+<dl class="last docutils">
+<dt><code>local</code></dt>
+<dd>Add the <code>local</code> flag if both OpenVPN peers are directly
+connected via a common subnet, such as with wireless. The
+<code>local</code> flag will cause step <tt class="docutils literal">(1)</tt> above to be omitted.</dd>
+<dt><code>autolocal</code></dt>
+<dd>Try to automatically determine whether to enable <code>local</code>
+flag above.</dd>
+<dt><code>def1</code></dt>
+<dd>Use this flag to override the default gateway by using
+<code>0.0.0.0/1</code> and <code>128.0.0.0/1</code> rather than
+<code>0.0.0.0/0</code>. This has the benefit of overriding but not
+wiping out the original default gateway.</dd>
+<dt><code>bypass-dhcp</code></dt>
+<dd>Add a direct route to the DHCP server (if it is non-local) which
+bypasses the tunnel (Available on Windows clients, may not be
+available on non-Windows clients).</dd>
+<dt><code>bypass-dns</code></dt>
+<dd>Add a direct route to the DNS server(s) (if they are non-local)
+which bypasses the tunnel (Available on Windows clients, may
+not be available on non-Windows clients).</dd>
+<dt><code>block-local</code></dt>
+<dd>Block access to local LAN when the tunnel is active, except for
+the LAN gateway itself. This is accomplished by routing the local
+LAN (except for the LAN gateway address) into the tunnel.</dd>
+<dt><code>ipv6</code></dt>
+<dd>Redirect IPv6 routing into the tunnel. This works similar to
+the <code>def1</code> flag, that is, more specific IPv6 routes are added
+(<code>2000::/4</code>, <code>3000::/4</code>), covering the whole IPv6
+unicast space.</dd>
+<dt><code>!ipv4</code></dt>
+<dd>Do not redirect IPv4 traffic - typically used in the flag pair
+<code>ipv6 !ipv4</code> to redirect IPv6-only.</dd>
+</dl>
+</td></tr>
+<tr><td class="option-group" colspan="2">
+<kbd><span class="option">--redirect-private <var>flags</var></span></kbd></td>
+</tr>
+<tr><td>&nbsp;</td><td>Like <tt class="docutils literal"><span class="pre">--redirect-gateway</span></tt>, but omit actually changing the default gateway.
+Useful when pushing private subnets.</td></tr>
+<tr><td class="option-group">
+<kbd><span class="option">--route <var>args</var></span></kbd></td>
+<td><p class="first">Add route to routing table after connection is established. Multiple
+routes can be specified. Routes will be automatically torn down in
+reverse order prior to TUN/TAP device close.</p>
+<p>Valid syntaxes:</p>
+<pre class="literal-block">
+route network/IP
+route network/IP netmask
+route network/IP netmask gateway
+route network/IP netmask gateway metric
+</pre>
+<p>This option is intended as a convenience proxy for the <tt class="docutils literal">route</tt>(8)
+shell command, while at the same time providing portable semantics
+across OpenVPN's platform space.</p>
+<dl class="docutils">
+<dt><tt class="docutils literal">netmask</tt></dt>
+<dd>defaults to <code>255.255.255.255</code> when not given</dd>
+<dt><tt class="docutils literal">gateway</tt></dt>
+<dd>default taken from <tt class="docutils literal"><span class="pre">--route-gateway</span></tt> or the second
+parameter to <tt class="docutils literal"><span class="pre">--ifconfig</span></tt> when <tt class="docutils literal"><span class="pre">--dev</span> tun</tt> is specified.</dd>
+<dt><tt class="docutils literal">metric</tt></dt>
+<dd>default taken from <tt class="docutils literal"><span class="pre">--route-metric</span></tt> if set, otherwise <code>0</code>.</dd>
+</dl>
+<p>The default can be specified by leaving an option blank or setting it to
+<code>default</code>.</p>
+<p>The <tt class="docutils literal">network</tt> and <tt class="docutils literal">gateway</tt> parameters can also be specified as a
+DNS or <code>/etc/hosts</code> file resolvable name, or as one of three special
+keywords:</p>
+<dl class="last docutils">
+<dt><code>vpn_gateway</code></dt>
+<dd>The remote VPN endpoint address (derived either from
+<tt class="docutils literal"><span class="pre">--route-gateway</span></tt> or the second parameter to <tt class="docutils literal"><span class="pre">--ifconfig</span></tt>
+when <tt class="docutils literal"><span class="pre">--dev</span> tun</tt> is specified).</dd>
+<dt><code>net_gateway</code></dt>
+<dd>The pre-existing IP default gateway, read from the
+routing table (not supported on all OSes).</dd>
+<dt><code>remote_host</code></dt>
+<dd>The <tt class="docutils literal"><span class="pre">--remote</span></tt> address if OpenVPN is being run in
+client mode, and is undefined in server mode.</dd>
+</dl>
+</td></tr>
+<tr><td class="option-group" colspan="2">
+<kbd><span class="option">--route-delay <var>args</var></span></kbd></td>
+</tr>
+<tr><td>&nbsp;</td><td><p class="first">Valid syntaxes:</p>
+<pre class="literal-block">
+route-delay
+route-delay n
+route-delay n m
+</pre>
+<p>Delay <tt class="docutils literal">n</tt> seconds (default <code>0</code>) after connection establishment,
+before adding routes. If <tt class="docutils literal">n</tt> is <code>0</code>, routes will be added
+immediately upon connection establishment. If <tt class="docutils literal"><span class="pre">--route-delay</span></tt> is
+omitted, routes will be added immediately after TUN/TAP device open and
+<tt class="docutils literal"><span class="pre">--up</span></tt> script execution, before any <tt class="docutils literal"><span class="pre">--user</span></tt> or <tt class="docutils literal"><span class="pre">--group</span></tt> privilege
+downgrade (or <tt class="docutils literal"><span class="pre">--chroot</span></tt> execution.)</p>
+<p>This option is designed to be useful in scenarios where DHCP is used to
+set tap adapter addresses. The delay will give the DHCP handshake time
+to complete before routes are added.</p>
+<p class="last">On Windows, <tt class="docutils literal"><span class="pre">--route-delay</span></tt> tries to be more intelligent by waiting
+<tt class="docutils literal">w</tt> seconds (default <code>30</code> by default) for the TAP-Win32 adapter
+to come up before adding routes.</p>
+</td></tr>
+<tr><td class="option-group" colspan="2">
+<kbd><span class="option">--route-ipv6 <var>args</var></span></kbd></td>
+</tr>
+<tr><td>&nbsp;</td><td><p class="first">Setup IPv6 routing in the system to send the specified IPv6 network into
+OpenVPN's <em>tun</em>.</p>
+<p>Valid syntax:</p>
+<pre class="literal-block">
+route-ipv6 ipv6addr/bits [gateway] [metric]
+</pre>
+<p class="last">The gateway parameter is only used for IPv6 routes across <em>tap</em> devices,
+and if missing, the <tt class="docutils literal">ipv6remote</tt> field from <tt class="docutils literal"><span class="pre">--ifconfig-ipv6</span></tt> or
+<tt class="docutils literal"><span class="pre">--route-ipv6-gateway</span></tt> is used.</p>
+</td></tr>
+<tr><td class="option-group" colspan="2">
+<kbd><span class="option">--route-gateway <var>arg</var></span></kbd></td>
+</tr>
+<tr><td>&nbsp;</td><td><p class="first">Specify a default <em>gateway</em> for use with <tt class="docutils literal"><span class="pre">--route</span></tt>.</p>
+<p>If <code>dhcp</code> is specified as the parameter, the gateway address will
+be extracted from a DHCP negotiation with the OpenVPN server-side LAN.</p>
+<p>Valid syntaxes:</p>
+<pre class="last literal-block">
+route-gateway gateway
+route-gateway dhcp
+</pre>
+</td></tr>
+<tr><td class="option-group" colspan="2">
+<kbd><span class="option">--route-ipv6-gateway <var>gw</var></span></kbd></td>
+</tr>
+<tr><td>&nbsp;</td><td>Specify a default gateway <tt class="docutils literal">gw</tt> for use with <tt class="docutils literal"><span class="pre">--route-ipv6</span></tt>.</td></tr>
+<tr><td class="option-group" colspan="2">
+<kbd><span class="option">--route-metric <var>m</var></span></kbd></td>
+</tr>
+<tr><td>&nbsp;</td><td>Specify a default metric <tt class="docutils literal">m</tt> for use with <tt class="docutils literal"><span class="pre">--route</span></tt>.</td></tr>
+<tr><td class="option-group">
+<kbd><span class="option">--route-noexec</span></kbd></td>
+<td>Don't add or remove routes automatically. Instead pass routes to
+<tt class="docutils literal"><span class="pre">--route-up</span></tt> script using environmental variables.</td></tr>
+<tr><td class="option-group">
+<kbd><span class="option">--route-nopull</span></kbd></td>
+<td><p class="first">When used with <tt class="docutils literal"><span class="pre">--client</span></tt> or <tt class="docutils literal"><span class="pre">--pull</span></tt>, accept options pushed by
+server EXCEPT for routes, block-outside-dns and dhcp options like DNS
+servers.</p>
+<p class="last">When used on the client, this option effectively bars the server from
+adding routes to the client's routing table, however note that this
+option still allows the server to set the TCP/IP properties of the
+client's TUN/TAP interface.</p>
+</td></tr>
+<tr><td class="option-group" colspan="2">
+<kbd><span class="option">--topology <var>mode</var></span></kbd></td>
+</tr>
+<tr><td>&nbsp;</td><td><p class="first">Configure virtual addressing topology when running in <tt class="docutils literal"><span class="pre">--dev</span> tun</tt>
+mode. This directive has no meaning in <tt class="docutils literal"><span class="pre">--dev</span> tap</tt> mode, which always
+uses a <code>subnet</code> topology.</p>
+<p>If you set this directive on the server, the <tt class="docutils literal"><span class="pre">--server</span></tt> and
+<tt class="docutils literal"><span class="pre">--server-bridge</span></tt> directives will automatically push your chosen
+topology setting to clients as well. This directive can also be manually
+pushed to clients. Like the <tt class="docutils literal"><span class="pre">--dev</span></tt> directive, this directive must
+always be compatible between client and server.</p>
+<p><tt class="docutils literal">mode</tt> can be one of:</p>
+<dl class="docutils">
+<dt><code>net30</code></dt>
+<dd>Use a point-to-point topology, by allocating one /30 subnet
+per client. This is designed to allow point-to-point semantics when some
+or all of the connecting clients might be Windows systems. This is the
+default on OpenVPN 2.0.</dd>
+<dt><code>p2p</code></dt>
+<dd>Use a point-to-point topology where the remote endpoint of
+the client's tun interface always points to the local endpoint of the
+server's tun interface. This mode allocates a single IP address per
+connecting client. Only use when none of the connecting clients are
+Windows systems.</dd>
+<dt><code>subnet</code></dt>
+<dd>Use a subnet rather than a point-to-point topology by
+configuring the tun interface with a local IP address and subnet mask,
+similar to the topology used in <tt class="docutils literal"><span class="pre">--dev</span> tap</tt> and ethernet bridging
+mode. This mode allocates a single IP address per connecting client and
+works on Windows as well. Only available when server and clients are
+OpenVPN 2.1 or higher, or OpenVPN 2.0.x which has been manually patched
+with the <tt class="docutils literal"><span class="pre">--topology</span></tt> directive code. When used on Windows, requires
+version 8.2 or higher of the TAP-Win32 driver. When used on *nix,
+requires that the tun driver supports an <tt class="docutils literal">ifconfig</tt>(8) command which
+sets a subnet instead of a remote endpoint IP address.</dd>
+</dl>
+<p class="last"><em>Note:</em> Using <tt class="docutils literal"><span class="pre">--topology</span> subnet</tt> changes the interpretation of the
+arguments of <tt class="docutils literal"><span class="pre">--ifconfig</span></tt> to mean &quot;address netmask&quot;, no longer &quot;local
+remote&quot;.</p>
+</td></tr>
+<tr><td class="option-group">
+<kbd><span class="option">--tun-mtu <var>n</var></span></kbd></td>
+<td><p class="first">Take the TUN device MTU to be <strong>n</strong> and derive the link MTU from it
+(default <code>1500</code>). In most cases, you will probably want to leave
+this parameter set to its default value.</p>
+<p>The MTU (Maximum Transmission Units) is the maximum datagram size in
+bytes that can be sent unfragmented over a particular network path.
+OpenVPN requires that packets on the control and data channels be sent
+unfragmented.</p>
+<p>MTU problems often manifest themselves as connections which hang during
+periods of active usage.</p>
+<p class="last">It's best to use the <tt class="docutils literal"><span class="pre">--fragment</span></tt> and/or <tt class="docutils literal"><span class="pre">--mssfix</span></tt> options to deal
+with MTU sizing issues.</p>
+</td></tr>
+<tr><td class="option-group" colspan="2">
+<kbd><span class="option">--tun-mtu-extra <var>n</var></span></kbd></td>
+</tr>
+<tr><td>&nbsp;</td><td>Assume that the TUN/TAP device might return as many as <tt class="docutils literal">n</tt> bytes more
+than the <tt class="docutils literal"><span class="pre">--tun-mtu</span></tt> size on read. This parameter defaults to 0, which
+is sufficient for most TUN devices. TAP devices may introduce additional
+overhead in excess of the MTU size, and a setting of 32 is the default
+when TAP devices are used. This parameter only controls internal OpenVPN
+buffer sizing, so there is no transmission overhead associated with
+using a larger value.</td></tr>
+</tbody>
+</table>
+</div>
+<div class="section" id="tun-tap-standalone-operations">
+<h2>TUN/TAP standalone operations</h2>
+<p>These two standalone operations will require <tt class="docutils literal"><span class="pre">--dev</span></tt> and optionally
+<tt class="docutils literal"><span class="pre">--user</span></tt> and/or <tt class="docutils literal"><span class="pre">--group</span></tt>.</p>
+<table class="docutils option-list" frame="void" rules="none">
+<col class="option" />
+<col class="description" />
+<tbody valign="top">
+<tr><td class="option-group">
+<kbd><span class="option">--mktun</span></kbd></td>
+<td><p class="first">(Standalone) Create a persistent tunnel on platforms which support them
+such as Linux. Normally TUN/TAP tunnels exist only for the period of
+time that an application has them open. This option takes advantage of
+the TUN/TAP driver's ability to build persistent tunnels that live
+through multiple instantiations of OpenVPN and die only when they are
+deleted or the machine is rebooted.</p>
+<p>One of the advantages of persistent tunnels is that they eliminate the
+need for separate <tt class="docutils literal"><span class="pre">--up</span></tt> and <tt class="docutils literal"><span class="pre">--down</span></tt> scripts to run the appropriate
+<tt class="docutils literal">ifconfig</tt>(8) and <tt class="docutils literal">route</tt>(8) commands. These commands can be
+placed in the the same shell script which starts or terminates an
+OpenVPN session.</p>
+<p>Another advantage is that open connections through the TUN/TAP-based
+tunnel will not be reset if the OpenVPN peer restarts. This can be
+useful to provide uninterrupted connectivity through the tunnel in the
+event of a DHCP reset of the peer's public IP address (see the
+<tt class="docutils literal"><span class="pre">--ipchange</span></tt> option above).</p>
+<p>One disadvantage of persistent tunnels is that it is harder to
+automatically configure their MTU value (see <tt class="docutils literal"><span class="pre">--link-mtu</span></tt> and
+<tt class="docutils literal"><span class="pre">--tun-mtu</span></tt> above).</p>
+<p class="last">On some platforms such as Windows, TAP-Win32 tunnels are persistent by
+default.</p>
+</td></tr>
+<tr><td class="option-group">
+<kbd><span class="option">--rmtun</span></kbd></td>
+<td>(Standalone) Remove a persistent tunnel.</td></tr>
+</tbody>
+</table>
+</div>
+<div class="section" id="virtual-routing-and-forwarding">
+<h2>Virtual Routing and Forwarding</h2>
+<p>Options in this section relates to configuration of virtual routing and
+forwarding in combination with the underlying operating system.</p>
+<p>As of today this is only supported on Linux, a kernel &gt;= 4.9 is
+recommended.</p>
+<p>This could come in handy when for example the external network should be
+only used as a means to connect to some VPN endpoints and all regular
+traffic should only be routed through any tunnel(s).  This could be
+achieved by setting up a VRF and configuring the interface connected to
+the external network to be part of the VRF. The examples below will cover
+this setup.</p>
+<p>Another option would be to put the tun/tap interface into a VRF. This could
+be done by an up-script which uses the <code>ip link set</code> command shown
+below.</p>
+<div class="section" id="vrf-setup-with-iproute2">
+<h3>VRF setup with iproute2</h3>
+<p>Create VRF <code>vrf_external</code> and map it to routing table <code>1023</code></p>
+<pre class="literal-block">
+ip link add vrf_external type vrf table 1023
+</pre>
+<p>Move <code>eth0</code> into <code>vrf_external</code></p>
+<pre class="literal-block">
+ip link set master vrf_external dev eth0
+</pre>
+<p>Any prefixes configured on <code>eth0</code> will be moved from the :code`main`
+routing table into routing table <cite>1023</cite></p>
+</div>
+<div class="section" id="vrf-setup-with-ifupdown">
+<h3>VRF setup with ifupdown</h3>
+<p>For Debian based Distributions <code>ifupdown2</code> provides an almost drop-in
+replacement for <code>ifupdown</code> including VRFs and other features.
+A configuration for an interface <code>eth0</code> being part of VRF
+code:<cite>vrf_external</cite> could look like this:</p>
+<pre class="literal-block">
+auto eth0
+iface eth0
+    address 192.0.2.42/24
+    address 2001:db8:08:15::42/64
+    gateway 192.0.2.1
+    gateway 2001:db8:08:15::1
+    vrf vrf_external
+
+auto vrf_external
+iface vrf_external
+    vrf-table 1023
+</pre>
+</div>
+<div class="section" id="openvpn-configuration">
+<h3>OpenVPN configuration</h3>
+<p>The OpenVPN configuration needs to contain this line:</p>
+<pre class="literal-block">
+bind-dev vrf_external
+</pre>
+</div>
+<div class="section" id="further-reading">
+<h3>Further reading</h3>
+<p>Wikipedia has nice page one VRFs: <a class="reference external" href="https://en.wikipedia.org/wiki/Virtual_routing_and_forwarding">https://en.wikipedia.org/wiki/Virtual_routing_and_forwarding</a></p>
+<p>This talk from the Network Track of FrOSCon 2018 provides an overview about
+advanced layer 2 and layer 3 features of Linux</p>
+<blockquote>
+<ul class="simple">
+<li>Slides: <a class="reference external" href="https://www.slideshare.net/BarbarossaTM/l2l3-fr-fortgeschrittene-helle-und-dunkle-magie-im-linuxnetzwerkstack">https://www.slideshare.net/BarbarossaTM/l2l3-fr-fortgeschrittene-helle-und-dunkle-magie-im-linuxnetzwerkstack</a></li>
+<li>Video (german): <a class="reference external" href="https://media.ccc.de/v/froscon2018-2247-l2_l3_fur_fortgeschrittene_-_helle_und_dunkle_magie_im_linux-netzwerkstack">https://media.ccc.de/v/froscon2018-2247-l2_l3_fur_fortgeschrittene_-_helle_und_dunkle_magie_im_linux-netzwerkstack</a></li>
+</ul>
+</blockquote>
+</div>
+</div>
+</div>
+<div class="section" id="scripting-integration">
+<h1>SCRIPTING INTEGRATION</h1>
+<p>OpenVPN can execute external scripts in various phases of the lifetime of
+the OpenVPN process.</p>
+<div class="section" id="script-order-of-execution">
+<h2>Script Order of Execution</h2>
+<ol class="arabic">
+<li><p class="first"><tt class="docutils literal"><span class="pre">--up</span></tt></p>
+<p>Executed after TCP/UDP socket bind and TUN/TAP open.</p>
+</li>
+<li><p class="first"><tt class="docutils literal"><span class="pre">--tls-verify</span></tt></p>
+<p>Executed when we have a still untrusted remote peer.</p>
+</li>
+<li><p class="first"><tt class="docutils literal"><span class="pre">--ipchange</span></tt></p>
+<p>Executed after connection authentication, or remote IP address change.</p>
+</li>
+<li><p class="first"><tt class="docutils literal"><span class="pre">--client-connect</span></tt></p>
+<p>Executed in <strong>--mode server</strong> mode immediately after client
+authentication.</p>
+</li>
+<li><p class="first"><tt class="docutils literal"><span class="pre">--route-up</span></tt></p>
+<p>Executed after connection authentication, either immediately after, or
+some number of seconds after as defined by the <strong>--route-delay</strong> option.</p>
+</li>
+<li><p class="first"><tt class="docutils literal"><span class="pre">--route-pre-down</span></tt></p>
+<p>Executed right before the routes are removed.</p>
+</li>
+<li><p class="first"><tt class="docutils literal"><span class="pre">--client-disconnect</span></tt></p>
+<p>Executed in <tt class="docutils literal"><span class="pre">--mode</span> server</tt> mode on client instance shutdown.</p>
+</li>
+<li><p class="first"><tt class="docutils literal"><span class="pre">--down</span></tt></p>
+<p>Executed after TCP/UDP and TUN/TAP close.</p>
+</li>
+<li><p class="first"><tt class="docutils literal"><span class="pre">--learn-address</span></tt></p>
+<p>Executed in <tt class="docutils literal"><span class="pre">--mode</span> server</tt> mode whenever an IPv4 address/route or MAC
+address is added to OpenVPN's internal routing table.</p>
+</li>
+<li><p class="first"><tt class="docutils literal"><span class="pre">--auth-user-pass-verify</span></tt></p>
+<p>Executed in <tt class="docutils literal"><span class="pre">--mode</span> server</tt> mode on new client connections, when the
+client is still untrusted.</p>
+</li>
+</ol>
+</div>
+<div class="section" id="script-hooks">
+<h2>SCRIPT HOOKS</h2>
+<table class="docutils option-list" frame="void" rules="none">
+<col class="option" />
+<col class="description" />
+<tbody valign="top">
+<tr><td class="option-group" colspan="2">
+<kbd><span class="option">--auth-user-pass-verify <var>args</var></span></kbd></td>
+</tr>
+<tr><td>&nbsp;</td><td><p class="first">Require the client to provide a username/password (possibly in addition
+to a client certificate) for authentication.</p>
+<p>Valid syntax:</p>
+<pre class="literal-block">
+auth-user-pass-verify cmd method
+</pre>
+<p>OpenVPN will run command <tt class="docutils literal">cmd</tt> to validate the username/password
+provided by the client.</p>
+<p><tt class="docutils literal">cmd</tt> consists of a path to a script (or executable program), optionally
+followed by arguments. The path and arguments may be single- or
+double-quoted and/or escaped using a backslash, and should be separated
+by one or more spaces.</p>
+<p>If <tt class="docutils literal">method</tt> is set to <code>via-env</code>, OpenVPN will call <tt class="docutils literal">script</tt>
+with the environmental variables <code>username</code> and <code>password</code>
+set to the username/password strings provided by the client. <em>Beware</em>
+that this method is insecure on some platforms which make the environment
+of a process publicly visible to other unprivileged processes.</p>
+<p>If <tt class="docutils literal">method</tt> is set to <code>via-file</code>, OpenVPN will write the username
+and password to the first two lines of a temporary file. The filename
+will be passed as an argument to <tt class="docutils literal">script</tt>, and the file will be
+automatically deleted by OpenVPN after the script returns. The location
+of the temporary file is controlled by the <tt class="docutils literal"><span class="pre">--tmp-dir</span></tt> option, and
+will default to the current directory if unspecified. For security,
+consider setting <tt class="docutils literal"><span class="pre">--tmp-dir</span></tt> to a volatile storage medium such as
+<code>/dev/shm</code> (if available) to prevent the username/password file
+from touching the hard drive.</p>
+<p>The script should examine the username and password, returning a success
+exit code (<code>0</code>) if the client's authentication request is to be
+accepted, or a failure code (<code>1</code>) to reject the client.</p>
+<p>This directive is designed to enable a plugin-style interface for
+extending OpenVPN's authentication capabilities.</p>
+<p>To protect against a client passing a maliciously formed username or
+password string, the username string must consist only of these
+characters: alphanumeric, underbar ('<code>_</code>'), dash ('<code>-</code>'),
+dot ('<code>.</code>'), or at ('<code>&#64;</code>'). The password string can consist
+of any printable characters except for CR or LF. Any illegal characters
+in either the username or password string will be converted to
+underbar ('<code>_</code>').</p>
+<p>Care must be taken by any user-defined scripts to avoid creating a
+security vulnerability in the way that these strings are handled. Never
+use these strings in such a way that they might be escaped or evaluated
+by a shell interpreter.</p>
+<p class="last">For a sample script that performs PAM authentication, see
+<code>sample-scripts/auth-pam.pl</code> in the OpenVPN source distribution.</p>
+</td></tr>
+<tr><td class="option-group" colspan="2">
+<kbd><span class="option">--client-connect <var>cmd</var></span></kbd></td>
+</tr>
+<tr><td>&nbsp;</td><td><p class="first">Run command <tt class="docutils literal">cmd</tt> on client connection.</p>
+<p><tt class="docutils literal">cmd</tt> consists of a path to a script (or executable program), optionally
+followed by arguments. The path and arguments may be single- or
+double-quoted and/or escaped using a backslash, and should be separated
+by one or more spaces.</p>
+<p>The command is passed the common name and IP address of the
+just-authenticated client as environmental variables (see environmental
+variable section below). The command is also passed the pathname of a
+freshly created temporary file as the last argument (after any arguments
+specified in <tt class="docutils literal">cmd</tt> ), to be used by the command to pass dynamically
+generated config file directives back to OpenVPN.</p>
+<p>If the script wants to generate a dynamic config file to be applied on
+the server when the client connects, it should write it to the file
+named by the last argument.</p>
+<p>See the <tt class="docutils literal"><span class="pre">--client-config-dir</span></tt> option below for options which can be
+legally used in a dynamically generated config file.</p>
+<p>Note that the return value of <tt class="docutils literal">script</tt> is significant. If <tt class="docutils literal">script</tt>
+returns a non-zero error status, it will cause the client to be
+disconnected.</p>
+<p class="last">If a <tt class="docutils literal"><span class="pre">--client-connect</span></tt> wants to defer the generating of the
+configuration then the script needs to use the
+<code>client_connect_deferred_file</code> and
+<code>client_connect_config_file</code> environment variables, and write
+status accordingly into these files.  See the <a class="reference internal" href="#environmental-variables">Environmental Variables</a>
+section for more details.</p>
+</td></tr>
+<tr><td class="option-group" colspan="2">
+<kbd><span class="option">--client-disconnect <var>cmd</var></span></kbd></td>
+</tr>
+<tr><td>&nbsp;</td><td><p class="first">Like <tt class="docutils literal"><span class="pre">--client-connect</span></tt> but called on client instance shutdown. Will
+not be called unless the <tt class="docutils literal"><span class="pre">--client-connect</span></tt> script and plugins (if
+defined) were previously called on this instance with successful (0)
+status returns.</p>
+<p>The exception to this rule is if the <tt class="docutils literal"><span class="pre">--client-disconnect</span></tt> command or
+plugins are cascaded, and at least one client-connect function
+succeeded, then ALL of the client-disconnect functions for scripts and
+plugins will be called on client instance object deletion, even in cases
+where some of the related client-connect functions returned an error
+status.</p>
+<p class="last">The <tt class="docutils literal"><span class="pre">--client-disconnect</span></tt> command is passed the same pathname as the
+corresponding <tt class="docutils literal"><span class="pre">--client-connect</span></tt> command as its last argument (after
+any arguments specified in <tt class="docutils literal">cmd</tt>).</p>
+</td></tr>
+<tr><td class="option-group">
+<kbd><span class="option">--down <var>cmd</var></span></kbd></td>
+<td><p class="first">Run command <tt class="docutils literal">cmd</tt> after TUN/TAP device close (post <tt class="docutils literal"><span class="pre">--user</span></tt> UID
+change and/or <tt class="docutils literal"><span class="pre">--chroot</span></tt> ). <tt class="docutils literal">cmd</tt> consists of a path to script (or
+executable program), optionally followed by arguments. The path and
+arguments may be single- or double-quoted and/or escaped using a
+backslash, and should be separated by one or more spaces.</p>
+<p>Called with the same parameters and environmental variables as the
+<tt class="docutils literal"><span class="pre">--up</span></tt> option above.</p>
+<p class="last">Note that if you reduce privileges by using <tt class="docutils literal"><span class="pre">--user</span></tt> and/or
+<tt class="docutils literal"><span class="pre">--group</span></tt>, your <tt class="docutils literal"><span class="pre">--down</span></tt> script will also run at reduced privilege.</p>
+</td></tr>
+<tr><td class="option-group">
+<kbd><span class="option">--down-pre</span></kbd></td>
+<td>Call <tt class="docutils literal"><span class="pre">--down</span></tt> cmd/script before, rather than after, TUN/TAP close.</td></tr>
+<tr><td class="option-group">
+<kbd><span class="option">--ipchange <var>cmd</var></span></kbd></td>
+<td><p class="first">Run command <tt class="docutils literal">cmd</tt> when our remote ip-address is initially
+authenticated or changes.</p>
+<p><tt class="docutils literal">cmd</tt> consists of a path to a script (or executable program), optionally
+followed by arguments. The path and arguments may be single- or
+double-quoted and/or escaped using a backslash, and should be separated
+by one or more spaces.</p>
+<p>When <tt class="docutils literal">cmd</tt> is executed two arguments are appended after any arguments
+specified in <tt class="docutils literal">cmd</tt> , as follows:</p>
+<pre class="literal-block">
+cmd ip address port number
+</pre>
+<p>Don't use <tt class="docutils literal"><span class="pre">--ipchange</span></tt> in <tt class="docutils literal"><span class="pre">--mode</span> server</tt> mode. Use a
+<tt class="docutils literal"><span class="pre">--client-connect</span></tt> script instead.</p>
+<p>See the <a class="reference internal" href="#environmental-variables">Environmental Variables</a> section below for additional
+parameters passed as environmental variables.</p>
+<p>If you are running in a dynamic IP address environment where the IP
+addresses of either peer could change without notice, you can use this
+script, for example, to edit the <code>/etc/hosts</code> file with the current
+address of the peer. The script will be run every time the remote peer
+changes its IP address.</p>
+<p class="last">Similarly if <em>our</em> IP address changes due to DHCP, we should configure
+our IP address change script (see man page for <tt class="docutils literal">dhcpcd</tt>(8)) to
+deliver a <tt class="docutils literal">SIGHUP</tt> or <tt class="docutils literal">SIGUSR1</tt> signal to OpenVPN. OpenVPN will
+then re-establish a connection with its most recently authenticated
+peer on its new IP address.</p>
+</td></tr>
+<tr><td class="option-group" colspan="2">
+<kbd><span class="option">--learn-address <var>cmd</var></span></kbd></td>
+</tr>
+<tr><td>&nbsp;</td><td><p class="first">Run command <tt class="docutils literal">cmd</tt> to validate client virtual addresses or routes.</p>
+<p><tt class="docutils literal">cmd</tt> consists of a path to a script (or executable program), optionally
+followed by arguments. The path and arguments may be single- or
+double-quoted and/or escaped using a backslash, and should be separated
+by one or more spaces.</p>
+<p>Three arguments will be appended to any arguments in <tt class="docutils literal">cmd</tt> as follows:</p>
+<dl class="docutils">
+<dt><code>$1</code> - [operation]</dt>
+<dd><code>&quot;add&quot;</code>, <code>&quot;update&quot;</code>, or <code>&quot;delete&quot;</code> based on whether
+or not the address is being added to, modified, or deleted from
+OpenVPN's internal routing table.</dd>
+<dt><code>$2</code> - [address]</dt>
+<dd>The address being learned or unlearned. This can be an IPv4 address
+such as <code>&quot;198.162.10.14&quot;</code>, an IPv4 subnet such as
+<code>&quot;198.162.10.0/24&quot;</code>, or an ethernet MAC address (when
+<tt class="docutils literal"><span class="pre">--dev</span> tap</tt> is being used) such as <code>&quot;00:FF:01:02:03:04&quot;</code>.</dd>
+<dt><code>$3</code> - [common name]</dt>
+<dd>The common name on the certificate associated with the client linked
+to this address. Only present for <code>&quot;add&quot;</code> or <code>&quot;update&quot;</code>
+operations, not <code>&quot;delete&quot;</code>.</dd>
+</dl>
+<p>On <code>&quot;add&quot;</code> or <code>&quot;update&quot;</code> methods, if the script returns
+a failure code (non-zero), OpenVPN will reject the address and will not
+modify its internal routing table.</p>
+<p class="last">Normally, the <tt class="docutils literal">cmd</tt> script will use the information provided above to
+set appropriate firewall entries on the VPN TUN/TAP interface. Since
+OpenVPN provides the association between virtual IP or MAC address and
+the client's authenticated common name, it allows a user-defined script
+to configure firewall access policies with regard to the client's
+high-level common name, rather than the low level client virtual
+addresses.</p>
+</td></tr>
+<tr><td class="option-group">
+<kbd><span class="option">--route-up <var>cmd</var></span></kbd></td>
+<td><p class="first">Run command <tt class="docutils literal">cmd</tt> after routes are added, subject to <tt class="docutils literal"><span class="pre">--route-delay</span></tt>.</p>
+<p><tt class="docutils literal">cmd</tt> consists of a path to a script (or executable program), optionally
+followed by arguments. The path and arguments may be single- or
+double-quoted and/or escaped using a backslash, and should be separated
+by one or more spaces.</p>
+<p class="last">See the <a class="reference internal" href="#environmental-variables">Environmental Variables</a> section below for additional
+parameters passed as environmental variables.</p>
+</td></tr>
+<tr><td class="option-group" colspan="2">
+<kbd><span class="option">--route-pre-down <var>cmd</var></span></kbd></td>
+</tr>
+<tr><td>&nbsp;</td><td><p class="first">Run command <tt class="docutils literal">cmd</tt> before routes are removed upon disconnection.</p>
+<p><tt class="docutils literal">cmd</tt> consists of a path to a script (or executable program), optionally
+followed by arguments. The path and arguments may be single- or
+double-quoted and/or escaped using a backslash, and should be separated
+by one or more spaces.</p>
+<p class="last">See the <a class="reference internal" href="#environmental-variables">Environmental Variables</a> section below for additional
+parameters passed as environmental variables.</p>
+</td></tr>
+<tr><td class="option-group">
+<kbd><span class="option">--setenv <var>args</var></span></kbd></td>
+<td><p class="first">Set a custom environmental variable <code>name=value</code> to pass to script.</p>
+<p>Valid syntaxes:</p>
+<pre class="literal-block">
+setenv name value
+setenv FORWARD_COMPATIBLE 1
+setenv opt config_option
+</pre>
+<p>By setting <code>FORWARD_COMPATIBLE</code> to <code>1</code>, the config file
+syntax checking is relaxed so that unknown directives will trigger a
+warning but not a fatal error, on the assumption that a given unknown
+directive might be valid in future OpenVPN versions.</p>
+<p>This option should be used with caution, as there are good security
+reasons for having OpenVPN fail if it detects problems in a config file.
+Having said that, there are valid reasons for wanting new software
+features to gracefully degrade when encountered by older software
+versions.</p>
+<p>It is also possible to tag a single directive so as not to trigger a
+fatal error if the directive isn't recognized. To do this, prepend the
+following before the directive: <tt class="docutils literal">setenv opt</tt></p>
+<p>Versions prior to OpenVPN 2.3.3 will always ignore options set with the
+<tt class="docutils literal">setenv opt</tt> directive.</p>
+<p class="last">See also <tt class="docutils literal"><span class="pre">--ignore-unknown-option</span></tt></p>
+</td></tr>
+<tr><td class="option-group" colspan="2">
+<kbd><span class="option">--setenv-safe <var>args</var></span></kbd></td>
+</tr>
+<tr><td>&nbsp;</td><td><p class="first">Set a custom environmental variable <code>OPENVPN_name</code> to <code>value</code>
+to pass to scripts.</p>
+<p>Valid syntaxes:</p>
+<pre class="literal-block">
+setenv-safe name value
+</pre>
+<p class="last">This directive is designed to be pushed by the server to clients, and
+the prepending of <code>OPENVPN_</code> to the environmental variable is a
+safety precaution to prevent a <code>LD_PRELOAD</code> style attack from a
+malicious or compromised server.</p>
+</td></tr>
+<tr><td class="option-group" colspan="2">
+<kbd><span class="option">--tls-verify <var>cmd</var></span></kbd></td>
+</tr>
+<tr><td>&nbsp;</td><td><p class="first">Run command <tt class="docutils literal">cmd</tt> to verify the X509 name of a pending TLS connection
+that has otherwise passed all other tests of certification (except for
+revocation via <tt class="docutils literal"><span class="pre">--crl-verify</span></tt> directive; the revocation test occurs
+after the <tt class="docutils literal"><span class="pre">--tls-verify</span></tt> test).</p>
+<p><tt class="docutils literal">cmd</tt> should return <code>0</code> to allow the TLS handshake to proceed,
+or <code>1</code> to fail.</p>
+<p><tt class="docutils literal">cmd</tt> consists of a path to a script (or executable program), optionally
+followed by arguments. The path and arguments may be single- or
+double-quoted and/or escaped using a backslash, and should be separated
+by one or more spaces.</p>
+<p>When <tt class="docutils literal">cmd</tt> is executed two arguments are appended after any arguments
+specified in <tt class="docutils literal">cmd</tt>, as follows:</p>
+<pre class="literal-block">
+cmd certificate_depth subject
+</pre>
+<p>These arguments are, respectively, the current certificate depth and the
+X509 subject distinguished name (dn) of the peer.</p>
+<p>This feature is useful if the peer you want to trust has a certificate
+which was signed by a certificate authority who also signed many other
+certificates, where you don't necessarily want to trust all of them, but
+rather be selective about which peer certificate you will accept. This
+feature allows you to write a script which will test the X509 name on a
+certificate and decide whether or not it should be accepted. For a
+simple perl script which will test the common name field on the
+certificate, see the file <tt class="docutils literal"><span class="pre">verify-cn</span></tt> in the OpenVPN distribution.</p>
+<p class="last">See the <a class="reference internal" href="#environmental-variables">Environmental Variables</a> section below for additional
+parameters passed as environmental variables.</p>
+</td></tr>
+<tr><td class="option-group">
+<kbd><span class="option">--up <var>cmd</var></span></kbd></td>
+<td><p class="first">Run command <tt class="docutils literal">cmd</tt> after successful TUN/TAP device open (pre <tt class="docutils literal"><span class="pre">--user</span></tt>
+UID change).</p>
+<p><tt class="docutils literal">cmd</tt> consists of a path to a script (or executable program), optionally
+followed by arguments. The path and arguments may be single- or
+double-quoted and/or escaped using a backslash, and should be separated
+by one or more spaces.</p>
+<p>The up command is useful for specifying route commands which route IP
+traffic destined for private subnets which exist at the other end of the
+VPN connection into the tunnel.</p>
+<p>For <tt class="docutils literal"><span class="pre">--dev</span> tun</tt> execute as:</p>
+<pre class="literal-block">
+cmd tun_dev tun_mtu link_mtu ifconfig_local_ip ifconfig_remote_ip [init | restart]
+</pre>
+<p>For <tt class="docutils literal"><span class="pre">--dev</span> tap</tt> execute as:</p>
+<pre class="literal-block">
+cmd tap_dev tap_mtu link_mtu ifconfig_local_ip ifconfig_netmask [init | restart]
+</pre>
+<p>See the <a class="reference internal" href="#environmental-variables">Environmental Variables</a> section below for additional
+parameters passed as environmental variables.</p>
+<p>Note that if <tt class="docutils literal">cmd</tt> includes arguments, all OpenVPN-generated arguments
+will be appended to them to build an argument list with which the
+executable will be called.</p>
+<p>Typically, <tt class="docutils literal">cmd</tt> will run a script to add routes to the tunnel.</p>
+<p>Normally the up script is called after the TUN/TAP device is opened. In
+this context, the last command line parameter passed to the script will
+be <em>init.</em> If the <tt class="docutils literal"><span class="pre">--up-restart</span></tt> option is also used, the up script
+will be called for restarts as well. A restart is considered to be a
+partial reinitialization of OpenVPN where the TUN/TAP instance is
+preserved (the <tt class="docutils literal"><span class="pre">--persist-tun</span></tt> option will enable such preservation).
+A restart can be generated by a SIGUSR1 signal, a <tt class="docutils literal"><span class="pre">--ping-restart</span></tt>
+timeout, or a connection reset when the TCP protocol is enabled with the
+<tt class="docutils literal"><span class="pre">--proto</span></tt> option. If a restart occurs, and <tt class="docutils literal"><span class="pre">--up-restart</span></tt> has been
+specified, the up script will be called with <em>restart</em> as the last
+parameter.</p>
+<dl class="docutils">
+<dt><em>NOTE:</em></dt>
+<dd>On restart, OpenVPN will not pass the full set of environment
+variables to the script. Namely, everything related to routing and
+gateways will not be passed, as nothing needs to be done anyway - all
+the routing setup is already in place. Additionally, the up-restart
+script will run with the downgraded UID/GID settings (if configured).</dd>
+</dl>
+<p>The following standalone example shows how the <tt class="docutils literal"><span class="pre">--up</span></tt> script can be
+called in both an initialization and restart context. (<em>NOTE:</em> for
+security reasons, don't run the following example unless UDP port 9999
+is blocked by your firewall. Also, the example will run indefinitely, so
+you should abort with control-c).</p>
+<pre class="literal-block">
+openvpn --dev tun --port 9999 --verb 4 --ping-restart 10 \
+        --up 'echo up' --down 'echo down' --persist-tun  \
+        --up-restart
+</pre>
+<p>Note that OpenVPN also provides the <tt class="docutils literal"><span class="pre">--ifconfig</span></tt> option to
+automatically ifconfig the TUN device, eliminating the need to define an
+<tt class="docutils literal"><span class="pre">--up</span></tt> script, unless you also want to configure routes in the
+<tt class="docutils literal"><span class="pre">--up</span></tt> script.</p>
+<p>If <tt class="docutils literal"><span class="pre">--ifconfig</span></tt> is also specified, OpenVPN will pass the ifconfig
+local and remote endpoints on the command line to the <tt class="docutils literal"><span class="pre">--up</span></tt> script so
+that they can be used to configure routes such as:</p>
+<pre class="last literal-block">
+route add -net 10.0.0.0 netmask 255.255.255.0 gw $5
+</pre>
+</td></tr>
+<tr><td class="option-group">
+<kbd><span class="option">--up-delay</span></kbd></td>
+<td><p class="first">Delay TUN/TAP open and possible <tt class="docutils literal"><span class="pre">--up</span></tt> script execution until after
+TCP/UDP connection establishment with peer.</p>
+<p>In <tt class="docutils literal"><span class="pre">--proto</span> udp</tt> mode, this option normally requires the use of
+<tt class="docutils literal"><span class="pre">--ping</span></tt> to allow connection initiation to be sensed in the absence of
+tunnel data, since UDP is a &quot;connectionless&quot; protocol.</p>
+<p class="last">On Windows, this option will delay the TAP-Win32 media state
+transitioning to &quot;connected&quot; until connection establishment, i.e. the
+receipt of the first authenticated packet from the peer.</p>
+</td></tr>
+<tr><td class="option-group">
+<kbd><span class="option">--up-restart</span></kbd></td>
+<td>Enable the <tt class="docutils literal"><span class="pre">--up</span></tt> and <tt class="docutils literal"><span class="pre">--down</span></tt> scripts to be called for restarts as
+well as initial program start. This option is described more fully above
+in the <tt class="docutils literal"><span class="pre">--up</span></tt> option documentation.</td></tr>
+</tbody>
+</table>
+</div>
+<div class="section" id="string-types-and-remapping">
+<h2>String Types and Remapping</h2>
+<p>In certain cases, OpenVPN will perform remapping of characters in
+strings. Essentially, any characters outside the set of permitted
+characters for each string type will be converted to underbar ('_').</p>
+<dl class="docutils">
+<dt><em>Q: Why is string remapping necessary?</em></dt>
+<dd>It's an important security feature to prevent the malicious
+coding of strings from untrusted sources to be passed as parameters to
+scripts, saved in the environment, used as a common name, translated to
+a filename, etc.</dd>
+<dt><em>Q: Can string remapping be disabled?</em></dt>
+<dd>Yes, by using the <tt class="docutils literal"><span class="pre">--no-name-remapping</span></tt> option, however this
+should be considered an advanced option.</dd>
+</dl>
+<p>Here is a brief rundown of OpenVPN's current string types and the
+permitted character class for each string:</p>
+<dl class="docutils">
+<dt><em>X509 Names</em></dt>
+<dd>Alphanumeric, underbar ('_'), dash ('-'), dot ('.'), at
+('&#64;'), colon (':'), slash ('/'), and equal ('='). Alphanumeric is
+defined as a character which will cause the C library isalnum() function
+to return true.</dd>
+<dt><em>Common Names</em></dt>
+<dd>Alphanumeric, underbar ('_'), dash ('-'), dot ('.'), and at ('&#64;').</dd>
+<dt><em>--auth-user-pass username</em></dt>
+<dd>Same as Common Name, with one exception:
+starting with OpenVPN 2.0.1, the username is passed to the
+<code>OPENVPN_PLUGIN_AUTH_USER_PASS_VERIFY</code> plugin in its raw form,
+without string remapping.</dd>
+<dt><em>--auth-user-pass password</em></dt>
+<dd>Any &quot;printable&quot; character except CR or LF. Printable is defined to be
+a character which will cause the C library isprint() function to
+return true.</dd>
+<dt><em>--client-config-dir filename as derived from common name or`username</em></dt>
+<dd>Alphanumeric, underbar ('_'), dash ('-'), and dot ('.') except for &quot;.&quot;
+or &quot;..&quot; as standalone strings. As of v2.0.1-rc6, the at ('&#64;') character
+has been added as well for compatibility with the common name character
+class.</dd>
+<dt><em>Environmental variable names</em></dt>
+<dd>Alphanumeric or underbar ('_').</dd>
+<dt><em>Environmental variable values</em></dt>
+<dd>Any printable character.</dd>
+</dl>
+<p>For all cases, characters in a string which are not members of the legal
+character class for that string type will be remapped to underbar
+('_').</p>
+</div>
+<div class="section" id="environmental-variables">
+<h2>Environmental Variables</h2>
+<p>Once set, a variable is persisted indefinitely until it is reset by a
+new value or a restart,</p>
+<p>As of OpenVPN 2.0-beta12, in server mode, environmental variables set by
+OpenVPN are scoped according to the client objects they are associated
+with, so there should not be any issues with scripts having access to
+stale, previously set variables which refer to different client
+instances.</p>
+<dl class="docutils">
+<dt><code>bytes_received</code></dt>
+<dd>Total number of bytes received from client during VPN session. Set prior
+to execution of the <tt class="docutils literal"><span class="pre">--client-disconnect</span></tt> script.</dd>
+<dt><code>bytes_sent</code></dt>
+<dd>Total number of bytes sent to client during VPN session. Set prior to
+execution of the <tt class="docutils literal"><span class="pre">--client-disconnect</span></tt> script.</dd>
+<dt><code>client_connect_config_file</code></dt>
+<dd>The path to the configuration file that should be written to by the
+<tt class="docutils literal"><span class="pre">--client-connect</span></tt> script (optional, if per-session configuration
+is desired).  This is the same file name as passed via command line
+argument on the call to the <tt class="docutils literal"><span class="pre">--client-connect</span></tt> script.</dd>
+<dt><code>client_connect_deferred_file</code></dt>
+<dd><p class="first">This file can be optionally written to in order to to communicate a
+status code of the <tt class="docutils literal"><span class="pre">--client-connect</span></tt> script or plgin.  Only the
+first character in the file is relevant.  It must be either <code>1</code>
+to indicate normal script execution, <code>0</code> indicates an error (in
+the same way that a non zero exit status does) or <code>2</code> to indicate
+that the script deferred returning the config file.</p>
+<p>For deferred (background) handling, the script or plugin MUST write
+<code>2</code> to the file to indicate the deferral and then return with
+exit code <code>0</code> to signal <tt class="docutils literal">deferred handler started OK</tt>.</p>
+<p>A background process or similar must then take care of writing the
+configuration to the file indicated by the
+<code>client_connect_config_file</code> environment variable and when
+finished, write the a <code>1</code> to this file (or <code>0</code> in case of
+an error).</p>
+<p class="last">The absence of any character in the file when the script finishes
+executing is interpreted the same as <code>1</code>. This allows scripts
+that are not written to support the defer mechanism to be used
+unmodified.</p>
+</dd>
+<dt><code>common_name</code></dt>
+<dd>The X509 common name of an authenticated client. Set prior to execution
+of <tt class="docutils literal"><span class="pre">--client-connect</span></tt>, <tt class="docutils literal"><span class="pre">--client-disconnect</span></tt> and
+<tt class="docutils literal"><span class="pre">--auth-user-pass-verify</span></tt> scripts.</dd>
+<dt><code>config</code></dt>
+<dd>Name of first <tt class="docutils literal"><span class="pre">--config</span></tt> file. Set on program initiation and reset on
+SIGHUP.</dd>
+<dt><code>daemon</code></dt>
+<dd>Set to &quot;1&quot; if the <tt class="docutils literal"><span class="pre">--daemon</span></tt> directive is specified, or &quot;0&quot; otherwise.
+Set on program initiation and reset on SIGHUP.</dd>
+<dt><code>daemon_log_redirect</code></dt>
+<dd>Set to &quot;1&quot; if the <tt class="docutils literal"><span class="pre">--log</span></tt> or <tt class="docutils literal"><span class="pre">--log-append</span></tt> directives are
+specified, or &quot;0&quot; otherwise. Set on program initiation and reset on
+SIGHUP.</dd>
+<dt><code>dev</code></dt>
+<dd>The actual name of the TUN/TAP device, including a unit number if it
+exists. Set prior to <tt class="docutils literal"><span class="pre">--up</span></tt> or <tt class="docutils literal"><span class="pre">--down</span></tt> script execution.</dd>
+<dt><code>dev_idx</code></dt>
+<dd>On Windows, the device index of the TUN/TAP adapter (to be used in
+netsh.exe calls which sometimes just do not work right with interface
+names). Set prior to <tt class="docutils literal"><span class="pre">--up</span></tt> or <tt class="docutils literal"><span class="pre">--down</span></tt> script execution.</dd>
+<dt><code>foreign_option_{n}</code></dt>
+<dd>An option pushed via <tt class="docutils literal"><span class="pre">--push</span></tt> to a client which does not natively
+support it, such as <tt class="docutils literal"><span class="pre">--dhcp-option</span></tt> on a non-Windows system, will be
+recorded to this environmental variable sequence prior to <tt class="docutils literal"><span class="pre">--up</span></tt>
+script execution.</dd>
+<dt><code>ifconfig_broadcast</code></dt>
+<dd>The broadcast address for the virtual ethernet segment which is derived
+from the <tt class="docutils literal"><span class="pre">--ifconfig</span></tt> option when <tt class="docutils literal"><span class="pre">--dev</span> tap</tt> is used. Set prior to
+OpenVPN calling the <code>ifconfig</code> or <code>netsh</code> (windows version
+of ifconfig) commands which normally occurs prior to <tt class="docutils literal"><span class="pre">--up</span></tt> script
+execution.</dd>
+<dt><code>ifconfig_ipv6_local</code></dt>
+<dd>The local VPN endpoint IPv6 address specified in the
+<tt class="docutils literal"><span class="pre">--ifconfig-ipv6</span></tt> option (first parameter). Set prior to OpenVPN
+calling the <code>ifconfig</code> or code:<cite>netsh</cite> (windows version of
+ifconfig) commands which normally occurs prior to <tt class="docutils literal"><span class="pre">--up</span></tt> script
+execution.</dd>
+<dt><code>ifconfig_ipv6_netbits</code></dt>
+<dd>The prefix length of the IPv6 network on the VPN interface. Derived
+from the /nnn parameter of the IPv6 address in the <tt class="docutils literal"><span class="pre">--ifconfig-ipv6</span></tt>
+option (first parameter). Set prior to OpenVPN calling the
+<code>ifconfig</code> or <code>netsh</code> (windows version of ifconfig)
+commands which normally occurs prior to <tt class="docutils literal"><span class="pre">--up</span></tt> script execution.</dd>
+<dt><code>ifconfig_ipv6_remote</code></dt>
+<dd>The remote VPN endpoint IPv6 address specified in the
+<tt class="docutils literal"><span class="pre">--ifconfig-ipv6</span></tt> option (second parameter). Set prior to OpenVPN
+calling the <code>ifconfig</code> or <code>netsh</code> (windows version of
+ifconfig) commands which normally occurs prior to <tt class="docutils literal"><span class="pre">--up</span></tt> script
+execution.</dd>
+<dt><code>ifconfig_local</code></dt>
+<dd>The local VPN endpoint IP address specified in the <tt class="docutils literal"><span class="pre">--ifconfig</span></tt>
+option (first parameter). Set prior to OpenVPN calling the
+<code>ifconfig</code> or <code>netsh</code> (windows version of ifconfig)
+commands which normally occurs prior to <tt class="docutils literal"><span class="pre">--up</span></tt> script execution.</dd>
+<dt><code>ifconfig_remote</code></dt>
+<dd>The remote VPN endpoint IP address specified in the <tt class="docutils literal"><span class="pre">--ifconfig</span></tt>
+option (second parameter) when <tt class="docutils literal"><span class="pre">--dev</span> tun</tt> is used. Set prior to
+OpenVPN calling the <code>ifconfig</code> or <code>netsh</code> (windows version
+of ifconfig) commands which normally occurs prior to <tt class="docutils literal"><span class="pre">--up</span></tt> script
+execution.</dd>
+<dt><code>ifconfig_netmask</code></dt>
+<dd>The subnet mask of the virtual ethernet segment that is specified as
+the second parameter to <tt class="docutils literal"><span class="pre">--ifconfig</span></tt> when <tt class="docutils literal"><span class="pre">--dev</span> tap</tt> is being
+used. Set prior to OpenVPN calling the <code>ifconfig</code> or
+<code>netsh</code> (windows version of ifconfig) commands which normally
+occurs prior to <tt class="docutils literal"><span class="pre">--up</span></tt> script execution.</dd>
+<dt><code>ifconfig_pool_local_ip</code></dt>
+<dd>The local virtual IP address for the TUN/TAP tunnel taken from an
+<tt class="docutils literal"><span class="pre">--ifconfig-push</span></tt> directive if specified, or otherwise from the
+ifconfig pool (controlled by the <tt class="docutils literal"><span class="pre">--ifconfig-pool</span></tt> config file
+directive). Only set for <tt class="docutils literal"><span class="pre">--dev</span> tun</tt> tunnels. This option is set on
+the server prior to execution of the <tt class="docutils literal"><span class="pre">--client-connect</span></tt> and
+<tt class="docutils literal"><span class="pre">--client-disconnect</span></tt> scripts.</dd>
+<dt><code>ifconfig_pool_netmask</code></dt>
+<dd>The virtual IP netmask for the TUN/TAP tunnel taken from an
+<tt class="docutils literal"><span class="pre">--ifconfig-push</span></tt> directive if specified, or otherwise from the
+ifconfig pool (controlled by the <tt class="docutils literal"><span class="pre">--ifconfig-pool</span></tt> config file
+directive). Only set for <tt class="docutils literal"><span class="pre">--dev</span> tap</tt> tunnels. This option is set on
+the server prior to execution of the <tt class="docutils literal"><span class="pre">--client-connect</span></tt> and
+<tt class="docutils literal"><span class="pre">--client-disconnect</span></tt> scripts.</dd>
+<dt><code>ifconfig_pool_remote_ip</code></dt>
+<dd>The remote virtual IP address for the TUN/TAP tunnel taken from an
+<tt class="docutils literal"><span class="pre">--ifconfig-push</span></tt> directive if specified, or otherwise from the
+ifconfig pool (controlled by the <tt class="docutils literal"><span class="pre">--ifconfig-pool</span></tt> config file
+directive). This option is set on the server prior to execution of the
+<tt class="docutils literal"><span class="pre">--client-connect</span></tt> and <tt class="docutils literal"><span class="pre">--client-disconnect</span></tt> scripts.</dd>
+<dt><code>link_mtu</code></dt>
+<dd>The maximum packet size (not including the IP header) of tunnel data in
+UDP tunnel transport mode. Set prior to <tt class="docutils literal"><span class="pre">--up</span></tt> or <tt class="docutils literal"><span class="pre">--down</span></tt> script
+execution.</dd>
+<dt><code>local</code></dt>
+<dd>The <tt class="docutils literal"><span class="pre">--local</span></tt> parameter. Set on program initiation and reset on
+SIGHUP.</dd>
+<dt><code>local_port</code></dt>
+<dd>The local port number or name, specified by <tt class="docutils literal"><span class="pre">--port</span></tt> or <tt class="docutils literal"><span class="pre">--lport</span></tt>.
+Set on program initiation and reset on SIGHUP.</dd>
+<dt><code>password</code></dt>
+<dd>The password provided by a connecting client. Set prior to
+<tt class="docutils literal"><span class="pre">--auth-user-pass-verify</span></tt> script execution only when the <tt class="docutils literal"><span class="pre">via-env</span></tt>
+modifier is specified, and deleted from the environment after the script
+returns.</dd>
+<dt><code>proto</code></dt>
+<dd>The <tt class="docutils literal"><span class="pre">--proto</span></tt> parameter. Set on program initiation and reset on
+SIGHUP.</dd>
+<dt><code>remote_{n}</code></dt>
+<dd>The <tt class="docutils literal"><span class="pre">--remote</span></tt> parameter. Set on program initiation and reset on
+SIGHUP.</dd>
+<dt><code>remote_port_{n}</code></dt>
+<dd>The remote port number, specified by <tt class="docutils literal"><span class="pre">--port</span></tt> or <tt class="docutils literal"><span class="pre">--rport</span></tt>. Set on
+program initiation and reset on SIGHUP.</dd>
+<dt><code>route_net_gateway</code></dt>
+<dd>The pre-existing default IP gateway in the system routing table. Set
+prior to <tt class="docutils literal"><span class="pre">--up</span></tt> script execution.</dd>
+<dt><code>route_vpn_gateway</code></dt>
+<dd>The default gateway used by <tt class="docutils literal"><span class="pre">--route</span></tt> options, as specified in either
+the <tt class="docutils literal"><span class="pre">--route-gateway</span></tt> option or the second parameter to
+<tt class="docutils literal"><span class="pre">--ifconfig</span></tt> when <tt class="docutils literal"><span class="pre">--dev</span> tun</tt> is specified. Set prior to <tt class="docutils literal"><span class="pre">--up</span></tt>
+script execution.</dd>
+<dt><code>route_{parm}_{n}</code></dt>
+<dd><p class="first">A set of variables which define each route to be added, and are set
+prior to <tt class="docutils literal"><span class="pre">--up</span></tt> script execution.</p>
+<p><tt class="docutils literal">parm</tt> will be one of <code>network</code>, <code>netmask&quot;</code>,
+<code>gateway</code>, or <code>metric</code>.</p>
+<p><tt class="docutils literal">n</tt> is the OpenVPN route number, starting from 1.</p>
+<p class="last">If the network or gateway are resolvable DNS names, their IP address
+translations will be recorded rather than their names as denoted on the
+command line or configuration file.</p>
+</dd>
+<dt><code>route_ipv6_{parm}_{n}</code></dt>
+<dd><p class="first">A set of variables which define each IPv6 route to be added, and are
+set prior to <strong>--up</strong> script execution.</p>
+<p><tt class="docutils literal">parm</tt> will be one of <code>network</code> or <code>gateway</code>
+(<code>netmask</code> is contained as <code>/nnn</code> in the
+<tt class="docutils literal">route_ipv6_network_{n}</tt>, unlike IPv4 where it is passed in a
+separate environment variable).</p>
+<p><tt class="docutils literal">n</tt> is the OpenVPN route number, starting from 1.</p>
+<p class="last">If the network or gateway are resolvable DNS names, their IP address
+translations will be recorded rather than their names as denoted on the
+command line or configuration file.</p>
+</dd>
+<dt><code>peer_cert</code></dt>
+<dd>Temporary file name containing the client certificate upon connection.
+Useful in conjunction with <tt class="docutils literal"><span class="pre">--tls-verify</span></tt>.</dd>
+<dt><code>script_context</code></dt>
+<dd>Set to &quot;init&quot; or &quot;restart&quot; prior to up/down script execution. For more
+information, see documentation for <tt class="docutils literal"><span class="pre">--up</span></tt>.</dd>
+<dt><code>script_type</code></dt>
+<dd>Prior to execution of any script, this variable is set to the type of
+script being run. It can be one of the following: <code>up</code>,
+<code>down</code>, <code>ipchange</code>, <code>route-up</code>, <code>tls-verify</code>,
+<code>auth-user-pass-verify</code>, <code>client-connect</code>,
+<code>client-disconnect</code> or <code>learn-address</code>. Set prior to
+execution of any script.</dd>
+<dt><code>signal</code></dt>
+<dd>The reason for exit or restart. Can be one of <code>sigusr1</code>,
+<code>sighup</code>, <code>sigterm</code>, <code>sigint</code>, <code>inactive</code>
+(controlled by <tt class="docutils literal"><span class="pre">--inactive</span></tt> option), <code>ping-exit</code> (controlled
+by <tt class="docutils literal"><span class="pre">--ping-exit</span></tt> option), <code>ping-restart</code> (controlled by
+<tt class="docutils literal"><span class="pre">--ping-restart</span></tt> option), <code>connection-reset</code> (triggered on TCP
+connection reset), <code>error</code> or <code>unknown</code> (unknown signal).
+This variable is set just prior to down script execution.</dd>
+<dt><code>time_ascii</code></dt>
+<dd>Client connection timestamp, formatted as a human-readable time string.
+Set prior to execution of the <tt class="docutils literal"><span class="pre">--client-connect</span></tt> script.</dd>
+<dt><code>time_duration</code></dt>
+<dd>The duration (in seconds) of the client session which is now
+disconnecting. Set prior to execution of the <tt class="docutils literal"><span class="pre">--client-disconnect</span></tt>
+script.</dd>
+<dt><code>time_unix</code></dt>
+<dd>Client connection timestamp, formatted as a unix integer date/time
+value. Set prior to execution of the <tt class="docutils literal"><span class="pre">--client-connect</span></tt> script.</dd>
+<dt><code>tls_digest_{n}</code> / <code>tls_digest_sha256_{n}</code></dt>
+<dd>Contains the certificate SHA1 / SHA256 fingerprint, where <tt class="docutils literal">n</tt> is the
+verification level. Only set for TLS connections. Set prior to execution
+of <tt class="docutils literal"><span class="pre">--tls-verify</span></tt> script.</dd>
+<dt><code>tls_id_{n}</code></dt>
+<dd>A series of certificate fields from the remote peer, where <tt class="docutils literal">n</tt> is the
+verification level. Only set for TLS connections. Set prior to execution
+of <tt class="docutils literal"><span class="pre">--tls-verify</span></tt> script.</dd>
+<dt><code>tls_serial_{n}</code></dt>
+<dd>The serial number of the certificate from the remote peer, where <tt class="docutils literal">n</tt>
+is the verification level. Only set for TLS connections. Set prior to
+execution of <tt class="docutils literal"><span class="pre">--tls-verify</span></tt> script. This is in the form of a decimal
+string like &quot;933971680&quot;, which is suitable for doing serial-based OCSP
+queries (with OpenSSL, do not prepend &quot;0x&quot; to the string) If something
+goes wrong while reading the value from the certificate it will be an
+empty string, so your code should check that. See the
+<code>contrib/OCSP_check/OCSP_check.sh</code> script for an example.</dd>
+<dt><code>tls_serial_hex_{n}</code></dt>
+<dd>Like <code>tls_serial_{n}</code>, but in hex form (e.g.
+<code>12:34:56:78:9A</code>).</dd>
+<dt><code>tun_mtu</code></dt>
+<dd>The MTU of the TUN/TAP device. Set prior to <tt class="docutils literal"><span class="pre">--up</span></tt> or <tt class="docutils literal"><span class="pre">--down</span></tt>
+script execution.</dd>
+<dt><code>trusted_ip</code> / <code>trusted_ip6</code>)</dt>
+<dd>Actual IP address of connecting client or peer which has been
+authenticated. Set prior to execution of <tt class="docutils literal"><span class="pre">--ipchange</span></tt>,
+<tt class="docutils literal"><span class="pre">--client-connect</span></tt> and <tt class="docutils literal"><span class="pre">--client-disconnect</span></tt> scripts. If using ipv6
+endpoints (udp6, tcp6), <code>trusted_ip6</code> will be set instead.</dd>
+<dt><code>trusted_port</code></dt>
+<dd>Actual port number of connecting client or peer which has been
+authenticated. Set prior to execution of <tt class="docutils literal"><span class="pre">--ipchange</span></tt>,
+<tt class="docutils literal"><span class="pre">--client-connect</span></tt> and <tt class="docutils literal"><span class="pre">--client-disconnect</span></tt> scripts.</dd>
+<dt><code>untrusted_ip</code> / <code>untrusted_ip6</code></dt>
+<dd>Actual IP address of connecting client or peer which has not been
+authenticated yet. Sometimes used to <em>nmap</em> the connecting host in a
+<tt class="docutils literal"><span class="pre">--tls-verify</span></tt> script to ensure it is firewalled properly. Set prior
+to execution of <tt class="docutils literal"><span class="pre">--tls-verify</span></tt> and <tt class="docutils literal"><span class="pre">--auth-user-pass-verify</span></tt>
+scripts. If using ipv6 endpoints (udp6, tcp6), <code>untrusted_ip6</code>
+will be set instead.</dd>
+<dt><code>untrusted_port</code></dt>
+<dd>Actual port number of connecting client or peer which has not been
+authenticated yet. Set prior to execution of <tt class="docutils literal"><span class="pre">--tls-verify</span></tt> and
+<tt class="docutils literal"><span class="pre">--auth-user-pass-verify</span></tt> scripts.</dd>
+<dt><code>username</code></dt>
+<dd>The username provided by a connecting client. Set prior to
+<tt class="docutils literal"><span class="pre">--auth-user-pass-verify</span></tt> script execution only when the
+<code>via-env</code> modifier is specified.</dd>
+<dt><code>X509_{n}_{subject_field}</code></dt>
+<dd><p class="first">An X509 subject field from the remote peer certificate, where <tt class="docutils literal">n</tt> is
+the verification level. Only set for TLS connections. Set prior to
+execution of <tt class="docutils literal"><span class="pre">--tls-verify</span></tt> script. This variable is similar to
+<code>tls_id_{n}</code> except the component X509 subject fields are broken
+out, and no string remapping occurs on these field values (except for
+remapping of control characters to &quot;<code>_</code>&quot;). For example, the
+following variables would be set on the OpenVPN server using the sample
+client certificate in sample-keys (client.crt). Note that the
+verification level is 0 for the client certificate and 1 for the CA
+certificate.</p>
+<pre class="last literal-block">
+X509_0_emailAddress=me&#64;myhost.mydomain
+X509_0_CN=Test-Client
+X509_0_O=OpenVPN-TEST
+X509_0_ST=NA
+X509_0_C=KG
+X509_1_emailAddress=me&#64;myhost.mydomain
+X509_1_O=OpenVPN-TEST
+X509_1_L=BISHKEK
+X509_1_ST=NA
+X509_1_C=KG
+</pre>
+</dd>
+</dl>
+</div>
+<div class="section" id="management-interface-options">
+<h2>Management Interface Options</h2>
+<p>OpenVPN provides a feature rich socket based management interface for both
+server and client mode operations.</p>
+<table class="docutils option-list" frame="void" rules="none">
+<col class="option" />
+<col class="description" />
+<tbody valign="top">
+<tr><td class="option-group" colspan="2">
+<kbd><span class="option">--management <var>args</var></span></kbd></td>
+</tr>
+<tr><td>&nbsp;</td><td><p class="first">Enable a management server on a <tt class="docutils literal"><span class="pre">socket-name</span></tt> Unix socket on those
+platforms supporting it, or on a designated TCP port.</p>
+<p>Valid syntaxes:</p>
+<pre class="literal-block">
+management socket-name unix          #
+management socket-name unix pw-file  # (recommended)
+management IP port                   # (INSECURE)
+management IP port pw-file           #
+</pre>
+<p><tt class="docutils literal"><span class="pre">pw-file</span></tt>, if specified, is a password file where the password must
+be on first line. Instead of a filename it can use the keyword stdin
+which will prompt the user for a password to use when OpenVPN is
+starting.</p>
+<p>For unix sockets, the default behaviour is to create a unix domain
+socket that may be connected to by any process. Use the
+<tt class="docutils literal"><span class="pre">--management-client-user</span></tt> and <tt class="docutils literal"><span class="pre">--management-client-group</span></tt>
+directives to restrict access.</p>
+<p>The management interface provides a special mode where the TCP
+management link can operate over the tunnel itself. To enable this mode,
+set IP to <tt class="docutils literal">tunnel</tt>. Tunnel mode will cause the management interface to
+listen for a TCP connection on the local VPN address of the TUN/TAP
+interface.</p>
+<p><strong>*BEWARE*</strong> of enabling the management interface over TCP. In these cases
+you should <em>ALWAYS</em> make use of <tt class="docutils literal"><span class="pre">pw-file</span></tt> to password protect the
+management interface. Any user who can connect to this TCP <tt class="docutils literal">IP:port</tt>
+will be able to manage and control (and interfere with) the OpenVPN
+process. It is also strongly recommended to set IP to 127.0.0.1
+(localhost) to restrict accessibility of the management server to local
+clients.</p>
+<p>While the management port is designed for programmatic control of
+OpenVPN by other applications, it is possible to telnet to the port,
+using a telnet client in &quot;raw&quot; mode. Once connected, type <code>help</code>
+for a list of commands.</p>
+<p class="last">For detailed documentation on the management interface, see the
+<em>management-notes.txt</em> file in the management folder of the OpenVPN
+source distribution.</p>
+</td></tr>
+<tr><td class="option-group" colspan="2">
+<kbd><span class="option">--management-client</span></kbd></td>
+</tr>
+<tr><td>&nbsp;</td><td><p class="first">Management interface will connect as a TCP/unix domain client to
+<tt class="docutils literal">IP:port</tt> specified by <tt class="docutils literal"><span class="pre">--management</span></tt> rather than listen as a TCP
+server or on a unix domain socket.</p>
+<p class="last">If the client connection fails to connect or is disconnected, a SIGTERM
+signal will be generated causing OpenVPN to quit.</p>
+</td></tr>
+<tr><td class="option-group" colspan="2">
+<kbd><span class="option">--management-client-auth</span></kbd></td>
+</tr>
+<tr><td>&nbsp;</td><td>Gives management interface client the responsibility to authenticate
+clients after their client certificate has been verified. See
+<code>management-notes.txt</code> in OpenVPN distribution for detailed notes.</td></tr>
+<tr><td class="option-group" colspan="2">
+<kbd><span class="option">--management-client-group <var>g</var></span></kbd></td>
+</tr>
+<tr><td>&nbsp;</td><td>When the management interface is listening on a unix domain socket, only
+allow connections from group <tt class="docutils literal">g</tt>.</td></tr>
+<tr><td class="option-group" colspan="2">
+<kbd><span class="option">--management-client-pf</span></kbd></td>
+</tr>
+<tr><td>&nbsp;</td><td>Management interface clients must specify a packet filter file for each
+connecting client. See <code>management-notes.txt</code> in OpenVPN
+distribution for detailed notes.</td></tr>
+<tr><td class="option-group" colspan="2">
+<kbd><span class="option">--management-client-user <var>u</var></span></kbd></td>
+</tr>
+<tr><td>&nbsp;</td><td>When the management interface is listening on a unix domain socket, only
+allow connections from user <tt class="docutils literal">u</tt>.</td></tr>
+<tr><td class="option-group" colspan="2">
+<kbd><span class="option">--management-external-cert <var>certificate-hint</var></span></kbd></td>
+</tr>
+<tr><td>&nbsp;</td><td>Allows usage for external certificate instead of <tt class="docutils literal"><span class="pre">--cert</span></tt> option
+(client-only). <tt class="docutils literal"><span class="pre">certificate-hint</span></tt> is an arbitrary string which is
+passed to a management interface client as an argument of
+<em>NEED-CERTIFICATE</em> notification. Requires <tt class="docutils literal"><span class="pre">--management-external-key</span></tt>.</td></tr>
+<tr><td class="option-group" colspan="2">
+<kbd><span class="option">--management-external-key <var>args</var></span></kbd></td>
+</tr>
+<tr><td>&nbsp;</td><td><p class="first">Allows usage for external private key file instead of <tt class="docutils literal"><span class="pre">--key</span></tt> option
+(client-only).</p>
+<p>Valid syntaxes:</p>
+<pre class="literal-block">
+management-external-key
+management-external-key nopadding
+management-external-key pkcs1
+management-external-key nopadding pkcs1
+</pre>
+<p class="last">The optional parameters <code>nopadding</code> and <code>pkcs1</code> signal
+support for different padding algorithms. See
+<code>doc/mangement-notes.txt</code> for a complete description of this
+feature.</p>
+</td></tr>
+<tr><td class="option-group" colspan="2">
+<kbd><span class="option">--management-forget-disconnect</span></kbd></td>
+</tr>
+<tr><td>&nbsp;</td><td><p class="first">Make OpenVPN forget passwords when management session disconnects.</p>
+<p class="last">This directive does not affect the <tt class="docutils literal"><span class="pre">--http-proxy</span></tt> username/password.
+It is always cached.</p>
+</td></tr>
+<tr><td class="option-group" colspan="2">
+<kbd><span class="option">--management-hold</span></kbd></td>
+</tr>
+<tr><td>&nbsp;</td><td>Start OpenVPN in a hibernating state, until a client of the management
+interface explicitly starts it with the <code>hold release</code> command.</td></tr>
+<tr><td class="option-group" colspan="2">
+<kbd><span class="option">--management-log-cache <var>n</var></span></kbd></td>
+</tr>
+<tr><td>&nbsp;</td><td>Cache the most recent <tt class="docutils literal">n</tt> lines of log file history for usage by the
+management channel.</td></tr>
+<tr><td class="option-group" colspan="2">
+<kbd><span class="option">--management-query-passwords</span></kbd></td>
+</tr>
+<tr><td>&nbsp;</td><td>Query management channel for private key password and
+<tt class="docutils literal"><span class="pre">--auth-user-pass</span></tt> username/password. Only query the management
+channel for inputs which ordinarily would have been queried from the
+console.</td></tr>
+<tr><td class="option-group" colspan="2">
+<kbd><span class="option">--management-query-proxy</span></kbd></td>
+</tr>
+<tr><td>&nbsp;</td><td>Query management channel for proxy server information for a specific
+<tt class="docutils literal"><span class="pre">--remote</span></tt> (client-only).</td></tr>
+<tr><td class="option-group" colspan="2">
+<kbd><span class="option">--management-query-remote</span></kbd></td>
+</tr>
+<tr><td>&nbsp;</td><td>Allow management interface to override <tt class="docutils literal"><span class="pre">--remote</span></tt> directives
+(client-only).</td></tr>
+<tr><td class="option-group" colspan="2">
+<kbd><span class="option">--management-signal</span></kbd></td>
+</tr>
+<tr><td>&nbsp;</td><td>Send SIGUSR1 signal to OpenVPN if management session disconnects. This
+is useful when you wish to disconnect an OpenVPN session on user logoff.
+For <tt class="docutils literal"><span class="pre">--management-client</span></tt> this option is not needed since a disconnect
+will always generate a <code>SIGTERM</code>.</td></tr>
+<tr><td class="option-group" colspan="2">
+<kbd><span class="option">--management-up-down</span></kbd></td>
+</tr>
+<tr><td>&nbsp;</td><td>Report tunnel up/down events to management interface.</td></tr>
+</tbody>
+</table>
+</div>
+<div class="section" id="plug-in-interface-options">
+<h2>Plug-in Interface Options</h2>
+<p>OpenVPN can be extended by loading external plug-in modules at runtime.  These
+plug-ins must be prebuilt and adhere to the OpenVPN Plug-In API.</p>
+<table class="docutils option-list" frame="void" rules="none">
+<col class="option" />
+<col class="description" />
+<tbody valign="top">
+<tr><td class="option-group">
+<kbd><span class="option">--plugin <var>args</var></span></kbd></td>
+<td><p class="first">Loads an OpenVPN plug-in module.</p>
+<p>Valid syntax:</p>
+<pre class="literal-block">
+plugin module-name
+plugin module-name &quot;arguments&quot;
+</pre>
+<p>The <tt class="docutils literal"><span class="pre">module-name</span></tt> needs to be the first
+argument, indicating the plug-in to load.  The second argument is an
+optional init string which will be passed directly to the plug-in.
+If the init consists of multiple arguments it must be enclosed in
+double-quotes (&quot;).  Multiple plugin modules may be loaded into one
+OpenVPN process.</p>
+<p>The <tt class="docutils literal"><span class="pre">module-name</span></tt> argument can be just a filename or a filename
+with a relative or absolute path. The format of the filename and path
+defines if the plug-in will be loaded from a default plug-in directory
+or outside this directory.</p>
+<pre class="literal-block">
+--plugin path         Effective directory used
+===================== =============================
+ myplug.so            DEFAULT_DIR/myplug.so
+ subdir/myplug.so     DEFAULT_DIR/subdir/myplug.so
+ ./subdir/myplug.so   CWD/subdir/myplug.so
+ /usr/lib/my/plug.so  /usr/lib/my/plug.so
+</pre>
+<p><tt class="docutils literal">DEFAULT_DIR</tt> is replaced by the default plug-in directory, which is
+configured at the build time of OpenVPN. <tt class="docutils literal">CWD</tt> is the current directory
+where OpenVPN was started or the directory OpenVPN have switched into
+via the <tt class="docutils literal"><span class="pre">--cd</span></tt> option before the <tt class="docutils literal"><span class="pre">--plugin</span></tt> option.</p>
+<p>For more information and examples on how to build OpenVPN plug-in
+modules, see the README file in the <tt class="docutils literal">plugin</tt> folder of the OpenVPN
+source distribution.</p>
+<p>If you are using an RPM install of OpenVPN, see
+<code>/usr/share/openvpn/plugin</code>. The documentation is in <tt class="docutils literal">doc</tt> and
+the actual plugin modules are in <tt class="docutils literal">lib</tt>.</p>
+<p class="last">Multiple plugin modules can be cascaded, and modules can be used in
+tandem with scripts. The modules will be called by OpenVPN in the order
+that they are declared in the config file. If both a plugin and script
+are configured for the same callback, the script will be called last. If
+the return code of the module/script controls an authentication function
+(such as tls-verify, auth-user-pass-verify, or client-connect), then
+every module and script must return success (<code>0</code>) in order for the
+connection to be authenticated.</p>
+</td></tr>
+</tbody>
+</table>
+</div>
+<div class="section" id="windows-specific-options">
+<h2>Windows-Specific Options</h2>
+<table class="docutils option-list" frame="void" rules="none">
+<col class="option" />
+<col class="description" />
+<tbody valign="top">
+<tr><td class="option-group" colspan="2">
+<kbd><span class="option">--allow-nonadmin <var>TAP-adapter</var></span></kbd></td>
+</tr>
+<tr><td>&nbsp;</td><td>(Standalone) Set <tt class="docutils literal"><span class="pre">TAP-adapter</span></tt> to allow access from non-administrative
+accounts. If <tt class="docutils literal"><span class="pre">TAP-adapter</span></tt> is omitted, all TAP adapters on the system
+will be configured to allow non-admin access. The non-admin access
+setting will only persist for the length of time that the TAP-Win32
+device object and driver remain loaded, and will need to be re-enabled
+after a reboot, or if the driver is unloaded and reloaded. This
+directive can only be used by an administrator.</td></tr>
+<tr><td class="option-group" colspan="2">
+<kbd><span class="option">--block-outside-dns</span></kbd></td>
+</tr>
+<tr><td>&nbsp;</td><td><p class="first">Block DNS servers on other network adapters to prevent DNS leaks. This
+option prevents any application from accessing TCP or UDP port 53 except
+one inside the tunnel. It uses Windows Filtering Platform (WFP) and
+works on Windows Vista or later.</p>
+<p class="last">This option is considered unknown on non-Windows platforms and
+unsupported on Windows XP, resulting in fatal error. You may want to use
+<tt class="docutils literal"><span class="pre">--setenv</span> opt</tt> or <tt class="docutils literal"><span class="pre">--ignore-unknown-option</span></tt> (not suitable for
+Windows XP) to ignore said error. Note that pushing unknown options from
+server does not trigger fatal errors.</p>
+</td></tr>
+<tr><td class="option-group" colspan="2">
+<kbd><span class="option">--cryptoapicert <var>select-string</var></span></kbd></td>
+</tr>
+<tr><td>&nbsp;</td><td><p class="first"><em>(Windows/OpenSSL Only)</em> Load the certificate and private key from the
+Windows Certificate System Store.</p>
+<p>Use this option instead of <tt class="docutils literal"><span class="pre">--cert</span></tt> and <tt class="docutils literal"><span class="pre">--key</span></tt>.</p>
+<p>This makes it possible to use any smart card, supported by Windows, but
+also any kind of certificate, residing in the Cert Store, where you have
+access to the private key. This option has been tested with a couple of
+different smart cards (GemSAFE, Cryptoflex, and Swedish Post Office eID)
+on the client side, and also an imported PKCS12 software certificate on
+the server side.</p>
+<p>To select a certificate, based on a substring search in the
+certificate's subject:</p>
+<pre class="literal-block">
+cryptoapicert &quot;SUBJ:Peter Runestig&quot;
+</pre>
+<p>To select a certificate, based on certificate's thumbprint:</p>
+<pre class="literal-block">
+cryptoapicert &quot;THUMB:f6 49 24 41 01 b4 ...&quot;
+</pre>
+<p class="last">The thumbprint hex string can easily be copy-and-pasted from the Windows
+Certificate Store GUI.</p>
+</td></tr>
+<tr><td class="option-group">
+<kbd><span class="option">--dhcp-release</span></kbd></td>
+<td>Ask Windows to release the TAP adapter lease on shutdown. This option
+has no effect now, as it is enabled by default starting with
+OpenVPN 2.4.1.</td></tr>
+<tr><td class="option-group">
+<kbd><span class="option">--dhcp-renew</span></kbd></td>
+<td>Ask Windows to renew the TAP adapter lease on startup. This option is
+normally unnecessary, as Windows automatically triggers a DHCP
+renegotiation on the TAP adapter when it comes up, however if you set
+the TAP-Win32 adapter Media Status property to &quot;Always Connected&quot;, you
+may need this flag.</td></tr>
+<tr><td class="option-group" colspan="2">
+<kbd><span class="option">--ip-win32 <var>method</var></span></kbd></td>
+</tr>
+<tr><td>&nbsp;</td><td><p class="first">When using <tt class="docutils literal"><span class="pre">--ifconfig</span></tt> on Windows, set the TAP-Win32 adapter IP
+address and netmask using <tt class="docutils literal">method</tt>. Don't use this option unless you
+are also using <tt class="docutils literal"><span class="pre">--ifconfig</span></tt>.</p>
+<dl class="last docutils">
+<dt><code>manual</code></dt>
+<dd>Don't set the IP address or netmask automatically. Instead
+output a message to the console telling the user to configure the
+adapter manually and indicating the IP/netmask which OpenVPN
+expects the adapter to be set to.</dd>
+<dt><code>dynamic [offset] [lease-time]</code></dt>
+<dd><p class="first">Automatically set the IP address and netmask by replying to DHCP
+query messages generated by the kernel.  This mode is probably the
+&quot;cleanest&quot; solution for setting the TCP/IP properties since it
+uses the well-known DHCP protocol. There are, however, two
+prerequisites for using this mode:</p>
+<ol class="arabic simple">
+<li>The TCP/IP properties for the TAP-Win32 adapter must be set
+to &quot;Obtain an IP address automatically&quot;, and</li>
+<li>OpenVPN needs to claim an IP address in the subnet for use
+as the virtual DHCP server address.</li>
+</ol>
+<p>By default in <tt class="docutils literal"><span class="pre">--dev</span> tap</tt> mode, OpenVPN will take the normally
+unused first address in the subnet. For example, if your subnet is
+<code>192.168.4.0 netmask 255.255.255.0</code>, then OpenVPN will take
+the IP address <code>192.168.4.0</code> to use as the virtual DHCP
+server address.  In <tt class="docutils literal"><span class="pre">--dev</span> tun</tt> mode, OpenVPN will cause the DHCP
+server to masquerade as if it were coming from the remote endpoint.</p>
+<p>The optional offset parameter is an integer which is &gt; <code>-256</code>
+and &lt; <code>256</code> and which defaults to -1. If offset is positive,
+the DHCP server will masquerade as the IP address at network
+address + offset. If offset is negative, the DHCP server will
+masquerade as the IP address at broadcast address + offset.</p>
+<p>The Windows <code>ipconfig /all</code> command can be used to show what
+Windows thinks the DHCP server address is. OpenVPN will &quot;claim&quot;
+this address, so make sure to use a free address. Having said that,
+different OpenVPN instantiations, including different ends of
+the same connection, can share the same virtual DHCP server
+address.</p>
+<p class="last">The <tt class="docutils literal"><span class="pre">lease-time</span></tt> parameter controls the lease time of the DHCP
+assignment given to the TAP-Win32 adapter, and is denoted in
+seconds. Normally a very long lease time is preferred because it
+prevents routes involving the TAP-Win32 adapter from being lost
+when the system goes to sleep. The default lease time is one year.</p>
+</dd>
+<dt><code>netsh</code></dt>
+<dd>Automatically set the IP address and netmask using the Windows
+command-line &quot;netsh&quot; command. This method appears to work correctly
+on Windows XP but not Windows 2000.</dd>
+<dt><code>ipapi</code></dt>
+<dd>Automatically set the IP address and netmask using the Windows IP
+Helper API. This approach does not have ideal semantics, though
+testing has indicated that it works okay in practice. If you use
+this option, it is best to leave the TCP/IP properties for the
+TAP-Win32 adapter in their default state, i.e. &quot;Obtain an IP
+address automatically.&quot;</dd>
+<dt><code>adaptive</code> (Default)</dt>
+<dd><p class="first">Try <code>dynamic</code> method initially and fail over to <code>netsh</code>
+if the DHCP negotiation with the TAP-Win32 adapter does not succeed
+in 20 seconds. Such failures have been known to occur when certain
+third-party firewall packages installed on the client machine block
+the DHCP negotiation used by the TAP-Win32 adapter. Note that if
+the <code>netsh</code> failover occurs, the TAP-Win32 adapter TCP/IP
+properties will be reset from DHCP to static, and this will cause
+future OpenVPN startups using the <code>adaptive</code> mode to use
+<code>netsh</code> immediately, rather than trying <code>dynamic</code> first.</p>
+<p class="last">To &quot;unstick&quot; the <code>adaptive</code> mode from using <code>netsh</code>,
+run OpenVPN at least once using the <code>dynamic</code> mode to restore
+the TAP-Win32 adapter TCP/IP properties to a DHCP configuration.</p>
+</dd>
+</dl>
+</td></tr>
+<tr><td class="option-group">
+<kbd><span class="option">--pause-exit</span></kbd></td>
+<td>Put up a &quot;press any key to continue&quot; message on the console prior to
+OpenVPN program exit. This option is automatically used by the Windows
+explorer when OpenVPN is run on a configuration file using the
+right-click explorer menu.</td></tr>
+<tr><td class="option-group">
+<kbd><span class="option">--register-dns</span></kbd></td>
+<td>Run <code>ipconfig /flushdns</code> and <code>ipconfig /registerdns</code> on
+connection initiation. This is known to kick Windows into recognizing
+pushed DNS servers.</td></tr>
+<tr><td class="option-group" colspan="2">
+<kbd><span class="option">--route-method <var>m</var></span></kbd></td>
+</tr>
+<tr><td>&nbsp;</td><td><p class="first">Which method <tt class="docutils literal">m</tt> to use for adding routes on Windows?</p>
+<dl class="last docutils">
+<dt><code>adaptive</code> (default)</dt>
+<dd>Try IP helper API first. If that fails, fall back to the route.exe
+shell command.</dd>
+<dt><code>ipapi</code></dt>
+<dd>Use IP helper API.</dd>
+<dt><code>exe</code></dt>
+<dd>Call the route.exe shell command.</dd>
+</dl>
+</td></tr>
+<tr><td class="option-group">
+<kbd><span class="option">--service <var>args</var></span></kbd></td>
+<td><p class="first">Should be used when OpenVPN is being automatically executed by another
+program in such a context that no interaction with the user via display
+or keyboard is possible.</p>
+<p>Valid syntax:</p>
+<pre class="literal-block">
+service exit-event [0|1]
+</pre>
+<p>In general, end-users should never need to explicitly use this option,
+as it is automatically added by the OpenVPN service wrapper when a given
+OpenVPN configuration is being run as a service.</p>
+<p><tt class="docutils literal"><span class="pre">exit-event</span></tt> is the name of a Windows global event object, and OpenVPN
+will continuously monitor the state of this event object and exit when
+it becomes signaled.</p>
+<p>The second parameter indicates the initial state of <tt class="docutils literal"><span class="pre">exit-event</span></tt> and
+normally defaults to 0.</p>
+<p>Multiple OpenVPN processes can be simultaneously executed with the same
+<tt class="docutils literal"><span class="pre">exit-event</span></tt> parameter. In any case, the controlling process can
+signal <tt class="docutils literal"><span class="pre">exit-event</span></tt>, causing all such OpenVPN processes to exit.</p>
+<p class="last">When executing an OpenVPN process using the <tt class="docutils literal"><span class="pre">--service</span></tt> directive,
+OpenVPN will probably not have a console window to output status/error
+messages, therefore it is useful to use <tt class="docutils literal"><span class="pre">--log</span></tt> or <tt class="docutils literal"><span class="pre">--log-append</span></tt> to
+write these messages to a file.</p>
+</td></tr>
+<tr><td class="option-group" colspan="2">
+<kbd><span class="option">--show-adapters</span></kbd></td>
+</tr>
+<tr><td>&nbsp;</td><td>(Standalone) Show available TAP-Win32 adapters which can be selected
+using the <tt class="docutils literal"><span class="pre">--dev-node</span></tt> option. On non-Windows systems, the
+<tt class="docutils literal">ifconfig</tt>(8) command provides similar functionality.</td></tr>
+<tr><td class="option-group">
+<kbd><span class="option">--show-net</span></kbd></td>
+<td>(Standalone) Show OpenVPN's view of the system routing table and network
+adapter list.</td></tr>
+<tr><td class="option-group">
+<kbd><span class="option">--show-net-up</span></kbd></td>
+<td>Output OpenVPN's view of the system routing table and network adapter
+list to the syslog or log file after the TUN/TAP adapter has been
+brought up and any routes have been added.</td></tr>
+<tr><td class="option-group" colspan="2">
+<kbd><span class="option">--show-valid-subnets</span></kbd></td>
+</tr>
+<tr><td>&nbsp;</td><td><p class="first">(Standalone) Show valid subnets for <tt class="docutils literal"><span class="pre">--dev</span> tun</tt> emulation. Since the
+TAP-Win32 driver exports an ethernet interface to Windows, and since TUN
+devices are point-to-point in nature, it is necessary for the TAP-Win32
+driver to impose certain constraints on TUN endpoint address selection.</p>
+<p class="last">Namely, the point-to-point endpoints used in TUN device emulation must
+be the middle two addresses of a /30 subnet (netmask 255.255.255.252).</p>
+</td></tr>
+<tr><td class="option-group">
+<kbd><span class="option">--tap-sleep <var>n</var></span></kbd></td>
+<td><p class="first">Cause OpenVPN to sleep for <tt class="docutils literal">n</tt> seconds immediately after the TAP-Win32
+adapter state is set to &quot;connected&quot;.</p>
+<p class="last">This option is intended to be used to troubleshoot problems with the
+<tt class="docutils literal"><span class="pre">--ifconfig</span></tt> and <tt class="docutils literal"><span class="pre">--ip-win32</span></tt> options, and is used to give the
+TAP-Win32 adapter time to come up before Windows IP Helper API
+operations are applied to it.</p>
+</td></tr>
+<tr><td class="option-group">
+<kbd><span class="option">--win-sys <var>path</var></span></kbd></td>
+<td><p class="first">Set the Windows system directory pathname to use when looking for system
+executables such as <tt class="docutils literal">route.exe</tt> and <tt class="docutils literal">netsh.exe</tt>. By default, if this
+directive is not specified, OpenVPN will use the SystemRoot environment
+variable.</p>
+<p class="last">This option has changed behaviour since OpenVPN 2.3. Earlier you had to
+define <tt class="docutils literal"><span class="pre">--win-sys</span> env</tt> to use the SystemRoot environment variable,
+otherwise it defaulted to <code>C:\\WINDOWS</code>. It is not needed to use
+the <tt class="docutils literal">env</tt> keyword any more, and it will just be ignored. A warning is
+logged when this is found in the configuration file.</p>
+</td></tr>
+<tr><td class="option-group" colspan="2">
+<kbd><span class="option">--windows-driver <var>drv</var></span></kbd></td>
+</tr>
+<tr><td>&nbsp;</td><td>Specifies which tun driver to use. Values are <code>tap-windows6</code>
+(default) and <code>wintun</code>.  This is a Windows-only option.
+<code>wintun</code>&quot; requires <tt class="docutils literal"><span class="pre">--dev</span> tun</tt> and the OpenVPN process to run
+elevated, or be invoked using the Interactive Service.</td></tr>
+</tbody>
+</table>
+</div>
+<div class="section" id="standalone-debug-options">
+<h2>Standalone Debug Options</h2>
+<table class="docutils option-list" frame="void" rules="none">
+<col class="option" />
+<col class="description" />
+<tbody valign="top">
+<tr><td class="option-group" colspan="2">
+<kbd><span class="option">--show-gateway <var>args</var></span></kbd></td>
+</tr>
+<tr><td>&nbsp;</td><td><p class="first">(Standalone) Show current IPv4 and IPv6 default gateway and interface
+towards the gateway (if the protocol in question is enabled).</p>
+<p>Valid syntax:</p>
+<pre class="literal-block">
+--show-gateway
+--show-gateway IPv6-target
+</pre>
+<p class="last">If an IPv6 target address is passed as argument, the IPv6 route for this
+host is reported.</p>
+</td></tr>
+</tbody>
+</table>
+</div>
+<div class="section" id="advanced-expert-options">
+<h2>Advanced Expert Options</h2>
+<p>These are options only required when special tweaking is needed, often
+used when debugging or testing out special usage scenarios.</p>
+<table class="docutils option-list" frame="void" rules="none">
+<col class="option" />
+<col class="description" />
+<tbody valign="top">
+<tr><td class="option-group" colspan="2">
+<kbd><span class="option">--hash-size <var>args</var></span></kbd></td>
+</tr>
+<tr><td>&nbsp;</td><td><p class="first">Set the size of the real address hash table to <tt class="docutils literal">r</tt> and the virtual
+address table to <tt class="docutils literal">v</tt>.</p>
+<p>Valid syntax:</p>
+<pre class="literal-block">
+hash-size r v
+</pre>
+<p class="last">By default, both tables are sized at 256 buckets.</p>
+</td></tr>
+<tr><td class="option-group" colspan="2">
+<kbd><span class="option">--bcast-buffers <var>n</var></span></kbd></td>
+</tr>
+<tr><td>&nbsp;</td><td>Allocate <tt class="docutils literal">n</tt> buffers for broadcast datagrams (default <code>256</code>).</td></tr>
+<tr><td class="option-group" colspan="2">
+<kbd><span class="option">--persist-local-ip</span></kbd></td>
+</tr>
+<tr><td>&nbsp;</td><td>Preserve initially resolved local IP address and port number across
+<tt class="docutils literal">SIGUSR1</tt> or <tt class="docutils literal"><span class="pre">--ping-restart</span></tt> restarts.</td></tr>
+<tr><td class="option-group" colspan="2">
+<kbd><span class="option">--persist-remote-ip</span></kbd></td>
+</tr>
+<tr><td>&nbsp;</td><td>Preserve most recently authenticated remote IP address and port number
+across <code>SIGUSR1</code> or <tt class="docutils literal"><span class="pre">--ping-restart</span></tt> restarts.</td></tr>
+<tr><td class="option-group">
+<kbd><span class="option">--prng <var>args</var></span></kbd></td>
+<td><p class="first"><em>(Advanced)</em> Change the PRNG (Pseudo-random number generator) parameters</p>
+<p>Valid syntaxes:</p>
+<pre class="literal-block">
+prng alg
+prng alg nsl
+</pre>
+<p>Changes the PRNG to use digest algorithm <strong>alg</strong> (default <code>sha1</code>),
+and set <tt class="docutils literal">nsl</tt> (default <code>16</code>) to the size in bytes of the nonce
+secret length (between 16 and 64).</p>
+<p class="last">Set <tt class="docutils literal">alg</tt> to <code>none</code> to disable the PRNG and use the OpenSSL
+RAND_bytes function instead for all of OpenVPN's pseudo-random number
+needs.</p>
+</td></tr>
+<tr><td class="option-group">
+<kbd><span class="option">--rcvbuf <var>size</var></span></kbd></td>
+<td>Set the TCP/UDP socket receive buffer size. Defaults to operating system
+default.</td></tr>
+<tr><td class="option-group">
+<kbd><span class="option">--shaper <var>n</var></span></kbd></td>
+<td><p class="first">Limit bandwidth of outgoing tunnel data to <tt class="docutils literal">n</tt> bytes per second on the
+TCP/UDP port. Note that this will only work if mode is set to
+<code>p2p</code>.  If you want to limit the bandwidth in both directions, use
+this option on both peers.</p>
+<p>OpenVPN uses the following algorithm to implement traffic shaping: Given
+a shaper rate of <tt class="docutils literal">n</tt> bytes per second, after a datagram write of <tt class="docutils literal">b</tt>
+bytes is queued on the TCP/UDP port, wait a minimum of <tt class="docutils literal">(b / n)</tt>
+seconds before queuing the next write.</p>
+<p>It should be noted that OpenVPN supports multiple tunnels between the
+same two peers, allowing you to construct full-speed and reduced
+bandwidth tunnels at the same time, routing low-priority data such as
+off-site backups over the reduced bandwidth tunnel, and other data over
+the full-speed tunnel.</p>
+<p>Also note that for low bandwidth tunnels (under 1000 bytes per second),
+you should probably use lower MTU values as well (see above), otherwise
+the packet latency will grow so large as to trigger timeouts in the TLS
+layer and TCP connections running over the tunnel.</p>
+<p class="last">OpenVPN allows <tt class="docutils literal">n</tt> to be between 100 bytes/sec and 100 Mbytes/sec.</p>
+</td></tr>
+<tr><td class="option-group">
+<kbd><span class="option">--sndbuf <var>size</var></span></kbd></td>
+<td>Set the TCP/UDP socket send buffer size. Defaults to operating system
+default.</td></tr>
+<tr><td class="option-group" colspan="2">
+<kbd><span class="option">--tcp-queue-limit <var>n</var></span></kbd></td>
+</tr>
+<tr><td>&nbsp;</td><td><p class="first">Maximum number of output packets queued before TCP (default <code>64</code>).</p>
+<p class="last">When OpenVPN is tunneling data from a TUN/TAP device to a remote client
+over a TCP connection, it is possible that the TUN/TAP device might
+produce data at a faster rate than the TCP connection can support. When
+the number of output packets queued before sending to the TCP socket
+reaches this limit for a given client connection, OpenVPN will start to
+drop outgoing packets directed at this client.</p>
+</td></tr>
+<tr><td class="option-group">
+<kbd><span class="option">--txqueuelen <var>n</var></span></kbd></td>
+<td><em>(Linux only)</em> Set the TX queue length on the TUN/TAP interface.
+Currently defaults to operating system default.</td></tr>
+</tbody>
+</table>
+</div>
+</div>
+<div class="section" id="unsupported-options">
+<h1>UNSUPPORTED OPTIONS</h1>
+<p>Options listed in this section have been removed from OpenVPN and are no
+longer supported</p>
+<table class="docutils option-list" frame="void" rules="none">
+<col class="option" />
+<col class="description" />
+<tbody valign="top">
+<tr><td class="option-group" colspan="2">
+<kbd><span class="option">--client-cert-not-required</span></kbd></td>
+</tr>
+<tr><td>&nbsp;</td><td>Removed in OpenVPN 2.5.  This should be replaxed with
+<tt class="docutils literal"><span class="pre">--verify-client-cert</span> none</tt>.</td></tr>
+<tr><td class="option-group" colspan="2">
+<kbd><span class="option">--ifconfig-pool-linear</span></kbd></td>
+</tr>
+<tr><td>&nbsp;</td><td>Removed in OpenVPN 2.5.  This should be replaced with <tt class="docutils literal"><span class="pre">--topology</span> p2p</tt>.</td></tr>
+<tr><td class="option-group">
+<kbd><span class="option">--key-method</span></kbd></td>
+<td>Removed in OpenVPN 2.5.  This option should not be used, as using the old
+<tt class="docutils literal"><span class="pre">key-method</span></tt> weakens the VPN tunnel security.  The old <tt class="docutils literal"><span class="pre">key-method</span></tt>
+was also only needed when the remote side was older than OpenVPN 2.0.</td></tr>
+<tr><td class="option-group">
+<kbd><span class="option">--no-iv</span></kbd></td>
+<td>Removed in OpenVPN 2.5.  This option should not be used as it weakens the
+VPN tunnel security.  This has been a NOOP option since OpenVPN 2.4.</td></tr>
+<tr><td class="option-group">
+<kbd><span class="option">--no-replay</span></kbd></td>
+<td>Removed in OpenVPN 2.5.  This option should not be used as it weakens the
+VPN tunnel security.</td></tr>
+<tr><td class="option-group">
+<kbd><span class="option">--ns-cert-type</span></kbd></td>
+<td>Removed in OpenVPN 2.5.  The <tt class="docutils literal">nsCertType</tt> field is no longer supported
+in recent SSL/TLS libraries.  If your certificates does not include <em>key
+usage</em> and <em>extended key usage</em> fields, they must be upgraded and the
+<tt class="docutils literal"><span class="pre">--remote-cert-tls</span></tt> option should be used instead.</td></tr>
+</tbody>
+</table>
+</div>
+<div class="section" id="connection-profiles">
+<h1>CONNECTION PROFILES</h1>
+<p>Client configuration files may contain multiple remote servers which
+it will attempt to connect against.  But there are some configuration
+options which are related to specific <tt class="docutils literal"><span class="pre">--remote</span></tt> options.  For these
+use cases, connection profiles are the solution.</p>
+<p>By enacpulating the <tt class="docutils literal"><span class="pre">--remote</span></tt> option and related options within
+<tt class="docutils literal">&lt;connection&gt;</tt> and <tt class="docutils literal">&lt;/connection&gt;</tt>, these options are handled as a
+group.</p>
+<p>An OpenVPN client will try each connection profile sequentially until it
+achieves a successful connection.</p>
+<p><tt class="docutils literal"><span class="pre">--remote-random</span></tt> can be used to initially &quot;scramble&quot; the connection
+list.</p>
+<p>Here is an example of connection profile usage:</p>
+<pre class="literal-block">
+client
+dev tun
+
+&lt;connection&gt;
+remote 198.19.34.56 1194 udp
+&lt;/connection&gt;
+
+&lt;connection&gt;
+remote 198.19.34.56 443 tcp
+&lt;/connection&gt;
+
+&lt;connection&gt;
+remote 198.19.34.56 443 tcp
+http-proxy 192.168.0.8 8080
+&lt;/connection&gt;
+
+&lt;connection&gt;
+remote 198.19.36.99 443 tcp
+http-proxy 192.168.0.8 8080
+&lt;/connection&gt;
+
+persist-key
+persist-tun
+pkcs12 client.p12
+remote-cert-tls server
+verb 3
+</pre>
+<p>First we try to connect to a server at 198.19.34.56:1194 using UDP. If
+that fails, we then try to connect to 198.19.34.56:443 using TCP. If
+that also fails, then try connecting through an HTTP proxy at
+192.168.0.8:8080 to 198.19.34.56:443 using TCP. Finally, try to connect
+through the same proxy to a server at 198.19.36.99:443 using TCP.</p>
+<p>The following OpenVPN options may be used inside of a <tt class="docutils literal">&lt;connection&gt;</tt>
+block:</p>
+<p><tt class="docutils literal">bind</tt>, <tt class="docutils literal"><span class="pre">connect-retry</span></tt>, <tt class="docutils literal"><span class="pre">connect-retry-max</span></tt>, <tt class="docutils literal"><span class="pre">connect-timeout</span></tt>,
+<tt class="docutils literal"><span class="pre">explicit-exit-notify</span></tt>, <tt class="docutils literal">float</tt>, <tt class="docutils literal">fragment</tt>, <tt class="docutils literal"><span class="pre">http-proxy</span></tt>,
+<tt class="docutils literal"><span class="pre">http-proxy-option</span></tt>, <tt class="docutils literal"><span class="pre">key-direction</span></tt>, <tt class="docutils literal"><span class="pre">link-mtu</span></tt>, <tt class="docutils literal">local</tt>,
+<tt class="docutils literal">lport</tt>, <tt class="docutils literal">mssfix</tt>, <tt class="docutils literal"><span class="pre">mtu-disc</span></tt>, <tt class="docutils literal">nobind</tt>, <tt class="docutils literal">port</tt>, <tt class="docutils literal">proto</tt>,
+<tt class="docutils literal">remote</tt>, <tt class="docutils literal">rport</tt>, <tt class="docutils literal"><span class="pre">socks-proxy</span></tt>, <tt class="docutils literal"><span class="pre">tls-auth</span></tt>, <tt class="docutils literal"><span class="pre">tls-crypt</span></tt>,
+<tt class="docutils literal"><span class="pre">tun-mtu</span> and</tt>, <tt class="docutils literal"><span class="pre">tun-mtu-extra</span></tt>.</p>
+<p>A defaulting mechanism exists for specifying options to apply to all
+<tt class="docutils literal">&lt;connection&gt;</tt> profiles. If any of the above options (with the
+exception of <tt class="docutils literal">remote</tt> ) appear outside of a <tt class="docutils literal">&lt;connection&gt;</tt> block,
+but in a configuration file which has one or more <tt class="docutils literal">&lt;connection&gt;</tt>
+blocks, the option setting will be used as a default for
+<tt class="docutils literal">&lt;connection&gt;</tt> blocks which follow it in the configuration file.</p>
+<p>For example, suppose the <tt class="docutils literal">nobind</tt> option were placed in the sample
+configuration file above, near the top of the file, before the first
+<tt class="docutils literal">&lt;connection&gt;</tt> block. The effect would be as if <tt class="docutils literal">nobind</tt> were
+declared in all <tt class="docutils literal">&lt;connection&gt;</tt> blocks below it.</p>
+</div>
+<div class="section" id="inline-file-support">
+<h1>INLINE FILE SUPPORT</h1>
+<p>OpenVPN allows including files in the main configuration for the <tt class="docutils literal"><span class="pre">--ca</span></tt>,
+<tt class="docutils literal"><span class="pre">--cert</span></tt>, <tt class="docutils literal"><span class="pre">--dh</span></tt>, <tt class="docutils literal"><span class="pre">--extra-certs</span></tt>, <tt class="docutils literal"><span class="pre">--key</span></tt>, <tt class="docutils literal"><span class="pre">--pkcs12</span></tt>,
+<tt class="docutils literal"><span class="pre">--secret</span></tt>, <tt class="docutils literal"><span class="pre">--crl-verify</span></tt>, <tt class="docutils literal"><span class="pre">--http-proxy-user-pass</span></tt>, <tt class="docutils literal"><span class="pre">--tls-auth</span></tt>,
+<tt class="docutils literal"><span class="pre">--auth-gen-token-secret</span></tt>, <tt class="docutils literal"><span class="pre">--tls-crypt</span></tt> and <tt class="docutils literal"><span class="pre">--tls-crypt-v2</span></tt>
+options.</p>
+<p>Each inline file started by the line <tt class="docutils literal">&lt;option&gt;</tt> and ended by the line
+<tt class="docutils literal">&lt;/option&gt;</tt></p>
+<p>Here is an example of an inline file usage</p>
+<pre class="literal-block">
+&lt;cert&gt;
+-----BEGIN CERTIFICATE-----
+[...]
+-----END CERTIFICATE-----
+&lt;/cert&gt;
+</pre>
+<p>When using the inline file feature with <tt class="docutils literal"><span class="pre">--pkcs12</span></tt> the inline file has
+to be base64 encoded. Encoding of a .p12 file into base64 can be done
+for example with OpenSSL by running <code>openssl base64 -in input.p12</code></p>
+</div>
+<div class="section" id="signals">
+<h1>SIGNALS</h1>
+<dl class="docutils">
+<dt><code>SIGHUP</code></dt>
+<dd>Cause OpenVPN to close all TUN/TAP and network connections, restart,
+re-read the configuration file (if any), and reopen TUN/TAP and network
+connections.</dd>
+<dt><code>SIGUSR1</code></dt>
+<dd><p class="first">Like <code>SIGHUP`</code>, except don't re-read configuration file, and
+possibly don't close and reopen TUN/TAP device, re-read key files,
+preserve local IP address/port, or preserve most recently authenticated
+remote IP address/port based on <tt class="docutils literal"><span class="pre">--persist-tun</span></tt>, <tt class="docutils literal"><span class="pre">--persist-key</span></tt>,
+<tt class="docutils literal"><span class="pre">--persist-local-ip</span></tt> and <tt class="docutils literal"><span class="pre">--persist-remote-ip</span></tt> options respectively
+(see above).</p>
+<p>This signal may also be internally generated by a timeout condition,
+governed by the <tt class="docutils literal"><span class="pre">--ping-restart</span></tt> option.</p>
+<p class="last">This signal, when combined with <tt class="docutils literal"><span class="pre">--persist-remote-ip</span></tt>, may be sent
+when the underlying parameters of the host's network interface change
+such as when the host is a DHCP client and is assigned a new IP address.
+See <tt class="docutils literal"><span class="pre">--ipchange</span></tt> for more information.</p>
+</dd>
+<dt><code>SIGUSR2</code></dt>
+<dd>Causes OpenVPN to display its current statistics (to the syslog file if
+<tt class="docutils literal"><span class="pre">--daemon</span></tt> is used, or stdout otherwise).</dd>
+<dt><code>SIGINT</code>, <code>SIGTERM</code></dt>
+<dd>Causes OpenVPN to exit gracefully.</dd>
+</dl>
+</div>
+<div class="section" id="examples">
+<h1>EXAMPLES</h1>
+<p>Prior to running these examples, you should have OpenVPN installed on
+two machines with network connectivity between them. If you have not yet
+installed OpenVPN, consult the INSTALL file included in the OpenVPN
+distribution.</p>
+<div class="section" id="firewall-setup">
+<h2>Firewall Setup:</h2>
+<p>If firewalls exist between the two machines, they should be set to
+forward the port OpenVPN is configured to use, in both directions.
+The default for OpenVPN is 1194/udp.  If you do not have control
+over the firewalls between the two machines, you may still be able to
+use OpenVPN by adding <tt class="docutils literal"><span class="pre">--ping</span> 15</tt> to each of the <tt class="docutils literal">openvpn</tt> commands
+used below in the examples (this will cause each peer to send out a UDP
+ping to its remote peer once every 15 seconds which will cause many
+stateful firewalls to forward packets in both directions without an
+explicit firewall rule).</p>
+<p>Please see your operating system guides for how to configure the firewall
+on your systems.</p>
+</div>
+<div class="section" id="vpn-address-setup">
+<h2>VPN Address Setup:</h2>
+<p>For purposes of our example, our two machines will be called
+<tt class="docutils literal">bob.example.com</tt> and <tt class="docutils literal">alice.example.com</tt>. If you are constructing a
+VPN over the internet, then replace <tt class="docutils literal">bob.example.com</tt> and
+<tt class="docutils literal">alice.example.com</tt> with the internet hostname or IP address that each
+machine will use to contact the other over the internet.</p>
+<p>Now we will choose the tunnel endpoints. Tunnel endpoints are private IP
+addresses that only have meaning in the context of the VPN. Each machine
+will use the tunnel endpoint of the other machine to access it over the
+VPN. In our example, the tunnel endpoint for bob.example.com will be
+10.4.0.1 and for alice.example.com, 10.4.0.2.</p>
+<p>Once the VPN is established, you have essentially created a secure
+alternate path between the two hosts which is addressed by using the
+tunnel endpoints. You can control which network traffic passes between
+the hosts (a) over the VPN or (b) independently of the VPN, by choosing
+whether to use (a) the VPN endpoint address or (b) the public internet
+address, to access the remote host. For example if you are on
+bob.example.com and you wish to connect to <tt class="docutils literal">alice.example.com</tt> via
+<tt class="docutils literal">ssh</tt> without using the VPN (since <strong>ssh</strong> has its own built-in security)
+you would use the command <tt class="docutils literal">ssh alice.example.com</tt>. However in the same
+scenario, you could also use the command <tt class="docutils literal">telnet 10.4.0.2</tt> to create a
+telnet session with alice.example.com over the VPN, that would use the
+VPN to secure the session rather than <tt class="docutils literal">ssh</tt>.</p>
+<p>You can use any address you wish for the tunnel endpoints but make sure
+that they are private addresses (such as those that begin with 10 or
+192.168) and that they are not part of any existing subnet on the
+networks of either peer, unless you are bridging. If you use an address
+that is part of your local subnet for either of the tunnel endpoints,
+you will get a weird feedback loop.</p>
+</div>
+<div class="section" id="example-1-a-simple-tunnel-without-security">
+<h2>Example 1: A simple tunnel without security</h2>
+<p>On bob:</p>
+<pre class="literal-block">
+openvpn --remote alice.example.com --dev tun1 \
+         --ifconfig 10.4.0.1 10.4.0.2 --verb 9
+</pre>
+<p>On alice:</p>
+<pre class="literal-block">
+openvpn --remote bob.example.com --dev tun1 \
+         --ifconfig 10.4.0.2 10.4.0.1 --verb 9
+</pre>
+<p>Now verify the tunnel is working by pinging across the tunnel.</p>
+<p>On bob:</p>
+<pre class="literal-block">
+ping 10.4.0.2
+</pre>
+<p>On alice:</p>
+<pre class="literal-block">
+ping 10.4.0.1
+</pre>
+<p>The <tt class="docutils literal"><span class="pre">--verb</span> 9</tt> option will produce verbose output, similar to the
+<tt class="docutils literal">tcpdump</tt>(8) program. Omit the <tt class="docutils literal"><span class="pre">--verb</span> 9</tt> option to have OpenVPN run
+quietly.</p>
+</div>
+<div class="section" id="example-2-a-tunnel-with-static-key-security-i-e-using-a-pre-shared-secret">
+<h2>Example 2: A tunnel with static-key security (i.e. using a pre-shared secret)</h2>
+<p>First build a static key on bob.</p>
+<pre class="literal-block">
+openvpn --genkey --secret key
+</pre>
+<p>This command will build a key file called <tt class="docutils literal">key</tt> (in ascii format). Now
+copy <tt class="docutils literal">key</tt> to <tt class="docutils literal">alice.example.com</tt> over a secure medium such as by using
+the <tt class="docutils literal">scp</tt>(1) program.</p>
+<p>On bob:</p>
+<pre class="literal-block">
+openvpn --remote alice.example.com --dev tun1  \
+         --ifconfig 10.4.0.1 10.4.0.2 --verb 5 \
+         --secret key
+</pre>
+<p>On alice:</p>
+<pre class="literal-block">
+openvpn --remote bob.example.com --dev tun1   \
+        --ifconfig 10.4.0.2 10.4.0.1 --verb 5 \
+        --secret key
+</pre>
+<p>Now verify the tunnel is working by pinging across the tunnel.</p>
+<p>On bob:</p>
+<pre class="literal-block">
+ping 10.4.0.2
+</pre>
+<p>On alice:</p>
+<pre class="literal-block">
+ping 10.4.0.1
+</pre>
+</div>
+<div class="section" id="example-3-a-tunnel-with-full-tls-based-security">
+<h2>Example 3: A tunnel with full TLS-based security</h2>
+<p>For this test, we will designate <tt class="docutils literal">bob</tt> as the TLS client and <tt class="docutils literal">alice</tt>
+as the TLS server.</p>
+<dl class="docutils">
+<dt><em>Note:</em></dt>
+<dd>The client or server designation only has
+meaning for the TLS subsystem. It has no bearing on OpenVPN's
+peer-to-peer, UDP-based communication model.*</dd>
+</dl>
+<p>First, build a separate certificate/key pair for both bob and alice (see
+above where <tt class="docutils literal"><span class="pre">--cert</span></tt> is discussed for more info). Then construct
+Diffie Hellman parameters (see above where <tt class="docutils literal"><span class="pre">--dh</span></tt> is discussed for
+more info). You can also use the included test files <code>client.crt</code>,
+<code>client.key</code>, <code>server.crt</code>, <code>server.key</code> and
+<code>ca.crt</code>. The <tt class="docutils literal">.crt</tt> files are certificates/public-keys, the
+<tt class="docutils literal">.key</tt> files are private keys, and <code>ca.crt</code> is a certification
+authority who has signed both <code>client.crt</code> and <code>server.crt</code>.
+For Diffie Hellman parameters you can use the included file
+<code>dh2048.pem</code>.</p>
+<dl class="docutils">
+<dt><em>WARNING:</em></dt>
+<dd>All client, server, and certificate authority certificates
+and keys included in the OpenVPN distribution are totally
+insecure and should be used for testing only.</dd>
+</dl>
+<p>On bob:</p>
+<pre class="literal-block">
+openvpn --remote alice.example.com --dev tun1    \
+        --ifconfig 10.4.0.1 10.4.0.2             \
+        --tls-client --ca ca.crt                 \
+        --cert client.crt --key client.key       \
+        --reneg-sec 60 --verb 5
+</pre>
+<p>On alice:</p>
+<pre class="literal-block">
+openvpn --remote bob.example.com --dev tun1      \
+        --ifconfig 10.4.0.2 10.4.0.1             \
+        --tls-server --dh dh1024.pem --ca ca.crt \
+        --cert server.crt --key server.key       \
+        --reneg-sec 60 --verb 5
+</pre>
+<p>Now verify the tunnel is working by pinging across the tunnel.</p>
+<p>On bob:</p>
+<pre class="literal-block">
+ping 10.4.0.2
+</pre>
+<p>On alice:</p>
+<pre class="literal-block">
+ping 10.4.0.1
+</pre>
+<p>Notice the <tt class="docutils literal"><span class="pre">--reneg-sec</span> 60</tt> option we used above. That tells OpenVPN
+to renegotiate the data channel keys every minute. Since we used
+<tt class="docutils literal"><span class="pre">--verb</span> 5</tt> above, you will see status information on each new key
+negotiation.</p>
+<p>For production operations, a key renegotiation interval of 60 seconds is
+probably too frequent. Omit the <tt class="docutils literal"><span class="pre">--reneg-sec</span> 60</tt> option to use
+OpenVPN's default key renegotiation interval of one hour.</p>
+</div>
+<div class="section" id="routing">
+<h2>Routing:</h2>
+<p>Assuming you can ping across the tunnel, the next step is to route a
+real subnet over the secure tunnel. Suppose that bob and alice have two
+network interfaces each, one connected to the internet, and the other to
+a private network. Our goal is to securely connect both private
+networks. We will assume that bob's private subnet is <em>10.0.0.0/24</em> and
+alice's is <em>10.0.1.0/24</em>.</p>
+<p>First, ensure that IP forwarding is enabled on both peers. On Linux,
+enable routing:</p>
+<pre class="literal-block">
+echo 1 &gt; /proc/sys/net/ipv4/ip_forward
+</pre>
+<p>This setting is not persistent.  Please see your operating systems
+documentation how to properly configure IP forwarding, which is also
+persistent through system boots.</p>
+<p>If your system is configured with a firewall.  Please see your operating
+systems guide on how to configure the firewall.  You typically want to
+allow traffic coming from and going to the tun/tap adapter OpenVPN is
+configured to use.</p>
+<p>On bob:</p>
+<pre class="literal-block">
+route add -net 10.0.1.0 netmask 255.255.255.0 gw 10.4.0.2
+</pre>
+<p>On alice:</p>
+<pre class="literal-block">
+route add -net 10.0.0.0 netmask 255.255.255.0 gw 10.4.0.1
+</pre>
+<p>Now any machine on the <em>10.0.0.0/24</em> subnet can access any machine on the
+<em>10.0.1.0/24</em> subnet over the secure tunnel (or vice versa).</p>
+<p>In a production environment, you could put the route command(s) in a
+script and execute with the <tt class="docutils literal"><span class="pre">--up</span></tt> option.</p>
+</div>
+</div>
+<div class="section" id="faq">
+<h1>FAQ</h1>
+<p><a class="reference external" href="https://community.openvpn.net/openvpn/wiki/FAQ">https://community.openvpn.net/openvpn/wiki/FAQ</a></p>
+</div>
+<div class="section" id="howto">
+<h1>HOWTO</h1>
+<p>For a more comprehensive guide to setting up OpenVPN in a production
+setting, see the OpenVPN HOWTO at
+<a class="reference external" href="https://openvpn.net/community-resources/how-to/">https://openvpn.net/community-resources/how-to/</a></p>
+</div>
+<div class="section" id="protocol">
+<h1>PROTOCOL</h1>
+<p>For a description of OpenVPN's underlying protocol, see
+<a class="reference external" href="https://openvpn.net/community-resources/openvpn-protocol/">https://openvpn.net/community-resources/openvpn-protocol/</a></p>
+</div>
+<div class="section" id="web">
+<h1>WEB</h1>
+<p>OpenVPN's web site is at <a class="reference external" href="https://openvpn.net/">https://openvpn.net/</a></p>
+<p>Go here to download the latest version of OpenVPN, subscribe to the
+mailing lists, read the mailing list archives, or browse the SVN
+repository.</p>
+</div>
+<div class="section" id="bugs">
+<h1>BUGS</h1>
+<p>Report all bugs to the OpenVPN team <a class="reference external" href="mailto:info&#64;openvpn.net">info&#64;openvpn.net</a></p>
+</div>
+<div class="section" id="see-also">
+<h1>SEE ALSO</h1>
+<p><tt class="docutils literal">dhcpcd</tt>(8),
+<tt class="docutils literal">ifconfig</tt>(8),
+<tt class="docutils literal">openssl</tt>(1),
+<tt class="docutils literal">route</tt>(8),
+<tt class="docutils literal">scp</tt>(1)
+<tt class="docutils literal">ssh</tt>(1)</p>
+</div>
+<div class="section" id="notes">
+<h1>NOTES</h1>
+<p>This product includes software developed by the OpenSSL Project
+(<a class="reference external" href="https://www.openssl.org/">https://www.openssl.org/</a>)</p>
+<p>For more information on the TLS protocol, see
+<a class="reference external" href="http://www.ietf.org/rfc/rfc2246.txt">http://www.ietf.org/rfc/rfc2246.txt</a></p>
+<p>For more information on the LZO real-time compression library see
+<a class="reference external" href="https://www.oberhumer.com/opensource/lzo/">https://www.oberhumer.com/opensource/lzo/</a></p>
+</div>
+<div class="section" id="copyright">
+<h1>COPYRIGHT</h1>
+<p>Copyright (C) 2002-2020 OpenVPN Inc This program is free software; you
+can redistribute it and/or modify it under the terms of the GNU General
+Public License version 2 as published by the Free Software Foundation.</p>
+</div>
+<div class="section" id="authors">
+<h1>AUTHORS</h1>
+<p>James Yonan <a class="reference external" href="mailto:james&#64;openvpn.net">james&#64;openvpn.net</a></p>
+</div>
+</div>
+</body>
+</html>
diff --git a/doc/tls-crypt-v2.txt b/doc/tls-crypt-v2.txt
deleted file mode 100644
index 3798791..0000000
--- a/doc/tls-crypt-v2.txt
+++ /dev/null
@@ -1,189 +0,0 @@
-Client-specific tls-crypt keys (--tls-crypt-v2)
-===============================================
-
-This document describes the ``--tls-crypt-v2`` option, which enables OpenVPN
-to use client-specific ``--tls-crypt`` keys.
-
-Rationale
----------
-
-``--tls-auth`` and ``tls-crypt`` use a pre-shared group key, which is shared
-among all clients and servers in an OpenVPN deployment.  If any client or
-server is compromised, the attacker will have access to this shared key, and it
-will no longer provide any security.  To reduce the risk of losing pre-shared
-keys, ``tls-crypt-v2`` adds the ability to supply each client with a unique
-tls-crypt key.  This allows large organisations and VPN providers to profit
-from the same DoS and TLS stack protection that small deployments can already
-achieve using ``tls-auth`` or ``tls-crypt``.
-
-Also, for ``tls-crypt``, even if all these peers succeed in keeping the key
-secret, the key lifetime is limited to roughly 8000 years, divided by the
-number of clients (see the ``--tls-crypt`` section of the man page).  Using
-client-specific keys, we lift this lifetime requirement to roughly 8000 years
-for each client key (which "Should Be Enough For Everybody (tm)").
-
-
-Introduction
-------------
-
-``tls-crypt-v2`` uses an encrypted cookie mechanism to introduce
-client-specific tls-crypt keys without introducing a lot of server-side state.
-The client-specific key is encrypted using a server key.  The server key is the
-same for all servers in a group.  When a client connects, it first sends the
-encrypted key to the server, such that the server can decrypt the key and all
-messages can thereafter be encrypted using the client-specific key.
-
-A wrapped (encrypted and authenticated) client-specific key can also contain
-metadata.  The metadata is wrapped together with the key, and can be used to
-allow servers to identify clients and/or key validity.  This allows the server
-to abort the connection immediately after receiving the first packet, rather
-than performing an entire TLS handshake.  Aborting the connection this early
-greatly improves the DoS resilience and reduces attack surface against
-malicious clients that have the ``tls-crypt`` or ``tls-auth`` key.  This is
-particularly relevant for large deployments (think lost key or disgruntled
-employee) and VPN providers (clients are not trusted).
-
-To allow for a smooth transition, ``tls-crypt-v2`` is designed such that a
-server can enable both ``tls-crypt-v2`` and either ``tls-crypt`` or
-``tls-auth``.  This is achieved by introducing a P_CONTROL_HARD_RESET_CLIENT_V3
-opcode, that indicates that the client wants to use ``tls-crypt-v2`` for the
-current connection.
-
-For an exact specification and more details, read the Implementation section.
-
-
-Implementation
---------------
-
-When setting up a tls-crypt-v2 group (similar to generating a tls-crypt or
-tls-auth key previously):
-
-1. Generate a tls-crypt-v2 server key using OpenVPN's ``--tls-crypt-v2-genkey server``.
-   This key contains 2 512-bit keys, of which we use:
-
-   * the first 256 bits of key 1 as AES-256-CTR encryption key ``Ke``
-   * the first 256 bits of key 2 as HMAC-SHA-256 authentication key ``Ka``
-
-   This format is similar to the format for regular ``tls-crypt``/``tls-auth``
-   and data channel keys, which allows us to reuse code.
-
-2. Add the tls-crypt-v2 server key to all server configs
-   (``tls-crypt-v2 /path/to/server.key``)
-
-
-When provisioning a client, create a client-specific tls-crypt key:
-
-1. Generate 2048 bits client-specific key ``Kc`` using OpenVPN's ``--tls-crypt-v2-genkey client``
-
-2. Optionally generate metadata
-
-   The first byte of the metadata determines the type.  The initial
-   implementation supports the following types:
-
-   0x00 (USER):         User-defined free-form data.
-   0x01 (TIMESTAMP):    64-bit network order unix timestamp of key generation.
-
-   The timestamp can be used to reject too-old tls-crypt-v2 client keys.
-
-   User metadata could for example contain the users certificate serial, such
-   that the incoming connection can be verified against a CRL.
-
-   If no metadata is supplied during key generation, openvpn defaults to the
-   TIMESTAMP metadata type.
-
-3. Create a wrapped client key ``WKc``, using the same nonce-misuse-resistant
-   SIV construction we use for tls-crypt:
-
-   ``len = len(WKc)`` (16 bit, network byte order)
-
-   ``T = HMAC-SHA256(Ka, len || Kc || metadata)``
-
-   ``IV = 128 most significant bits of T``
-
-   ``WKc = T || AES-256-CTR(Ke, IV, Kc || metadata) || len``
-
-   Note that the length of ``WKc`` can be computed before composing ``WKc``,
-   because the length of each component is known (and AES-256-CTR does not add
-   any padding).
-
-4. Create a tls-crypt-v2 client key: PEM-encode ``Kc || WKc`` and store in a
-   file, using the header ``-----BEGIN OpenVPN tls-crypt-v2 client key-----``
-   and the footer ``-----END OpenVPN tls-crypt-v2 client key-----``.  (The PEM
-   format is simple, and following PEM allows us to use the crypto lib function
-   for en/decoding.)
-
-5. Add the tls-crypt-v2 client key to the client config
-   (``tls-crypt-v2 /path/to/client-specific.key``)
-
-
-When setting up the openvpn connection:
-
-1. The client reads the tls-crypt-v2 key from its config, and:
-
-   1. loads ``Kc`` as its tls-crypt key,
-   2. stores ``WKc`` in memory for sending to the server.
-
-2. To start the connection, the client creates a P_CONTROL_HARD_RESET_CLIENT_V3
-   message, wraps it with tls-crypt using ``Kc`` as the key, and appends
-   ``WKc``.  (``WKc`` must not be encrypted, to prevent a chicken-and-egg
-   problem.)
-
-3. The server receives the P_CONTROL_HARD_RESET_CLIENT_V3 message, and
-
-   1. reads the WKc length field from the end of the message, and extracts WKc
-      from the message
-   2. unwraps ``WKc``
-   3. uses unwrapped ``Kc`` to verify the remaining
-      P_CONTROL_HARD_RESET_CLIENT_V3 message's (encryption and) authentication.
-
-   The message is dropped and no error response is sent when either 3.1, 3.2 or
-   3.3 fails (DoS protection).
-
-4. Server optionally checks metadata using a --tls-crypt-v2-verify script
-
-   This allows early abort of connection, *before* we expose any of the
-   notoriously dangerous TLS, X.509 and ASN.1 parsers and thereby reduces the
-   attack surface of the server.
-
-   The metadata is checked *after* the OpenVPN three-way handshake has
-   completed, to prevent DoS attacks.  (That is, once the client has proved to
-   the server that it possesses Kc, by authenticating a packet that contains the
-   session ID picked by the server.)
-
-   A server should not send back any error messages if metadata verification
-   fails, to reduce attack surface and maximize DoS resilience.
-
-6. Client and server use ``Kc`` for (un)wrapping any following control channel
-   messages.
-
-
-Considerations
---------------
-
-To allow for a smooth transition, the server implementation allows
-``tls-crypt`` or ``tls-auth`` to be used simultaneously with ``tls-crypt-v2``.
-This specification does not allow simultaneously using ``tls-crypt-v2`` and
-connections without any control channel wrapping, because that would break DoS
-resilience.
-
-WKc includes a length field, so we leave the option for future extension of the
-P_CONTROL_HEAD_RESET_CLIENT_V3 message open.  (E.g. add payload to the reset to
-indicate low-level protocol features.)
-
-``tls-crypt-v2`` uses fixed crypto algorithms, because:
-
- * The crypto is used before we can do any negotiation, so the algorithms have
-   to be predefined.
- * The crypto primitives are chosen conservatively, making problems with these
-   primitives unlikely.
- * Making anything configurable adds complexity, both in implementation and
-   usage.  We should not add any more complexity than is absolutely necessary.
-
-Potential ``tls-crypt-v2`` risks:
-
- * Slightly more work on first connection (``WKc`` unwrap + hard reset unwrap)
-   than with ``tls-crypt`` (hard reset unwrap) or ``tls-auth`` (hard reset auth).
- * Flexible metadata allow mistakes
-   (So we should make it easy to do it right.  Provide tooling to create client
-   keys based on cert serial + CA fingerprint, provide script that uses CRL (if
-   available) to drop revoked keys.)
diff --git a/include/Makefile.in b/include/Makefile.in
new file mode 100644
index 0000000..a09f404
--- /dev/null
+++ b/include/Makefile.in
@@ -0,0 +1,660 @@
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+# @configure_input@
+
+# Copyright (C) 1994-2018 Free Software Foundation, Inc.
+
+# This Makefile.in is free software; the Free Software Foundation
+# gives unlimited permission to copy and/or distribute it,
+# with or without modifications, as long as this notice is preserved.
+
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY, to the extent permitted by law; without
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+
+@SET_MAKE@
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+#             over a single UDP port, with support for SSL/TLS-based
+#             session authentication and key exchange,
+#             packet encryption, packet authentication, and
+#             packet compression.
+#
+#  Copyright (C) 2002-2018 OpenVPN Inc <sales@openvpn.net>
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+#
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diff --git a/include/openvpn-plugin.h b/include/openvpn-plugin.h
new file mode 100644
index 0000000..e20f463
--- /dev/null
+++ b/include/openvpn-plugin.h
@@ -0,0 +1,883 @@
+/* include/openvpn-plugin.h.  Generated from openvpn-plugin.h.in by configure.  */
+/*
+ *  OpenVPN -- An application to securely tunnel IP networks
+ *             over a single TCP/UDP port, with support for SSL/TLS-based
+ *             session authentication and key exchange,
+ *             packet encryption, packet authentication, and
+ *             packet compression.
+ *
+ *  Copyright (C) 2002-2018 OpenVPN Inc <sales@openvpn.net>
+ *
+ *  This program is free software; you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License version 2
+ *  as published by the Free Software Foundation.
+ *
+ *  This program is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License along
+ *  with this program; if not, write to the Free Software Foundation, Inc.,
+ *  51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+ */
+
+#ifndef OPENVPN_PLUGIN_H_
+#define OPENVPN_PLUGIN_H_
+
+#define OPENVPN_PLUGIN_VERSION 3
+
+#ifdef ENABLE_CRYPTO_MBEDTLS
+#include <mbedtls/x509_crt.h>
+#ifndef __OPENVPN_X509_CERT_T_DECLARED
+#define __OPENVPN_X509_CERT_T_DECLARED
+typedef mbedtls_x509_crt openvpn_x509_cert_t;
+#endif
+#else  /* ifdef ENABLE_CRYPTO_MBEDTLS */
+#include <openssl/x509.h>
+#ifndef __OPENVPN_X509_CERT_T_DECLARED
+#define __OPENVPN_X509_CERT_T_DECLARED
+typedef X509 openvpn_x509_cert_t;
+#endif
+#endif
+
+#include <stdarg.h>
+#include <stddef.h>
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+/* Provide some basic version information to plug-ins at OpenVPN compile time
+ * This is will not be the complete version
+ */
+#define OPENVPN_VERSION_MAJOR 2
+#define OPENVPN_VERSION_MINOR 5
+#define OPENVPN_VERSION_PATCH "_beta3"
+
+/*
+ * Plug-in types.  These types correspond to the set of script callbacks
+ * supported by OpenVPN.
+ *
+ * This is the general call sequence to expect when running in server mode:
+ *
+ * Initial Server Startup:
+ *
+ * FUNC: openvpn_plugin_open_v1
+ * FUNC: openvpn_plugin_client_constructor_v1 (this is the top-level "generic"
+ *                                             client template)
+ * FUNC: openvpn_plugin_func_v1 OPENVPN_PLUGIN_UP
+ * FUNC: openvpn_plugin_func_v1 OPENVPN_PLUGIN_ROUTE_UP
+ *
+ * New Client Connection:
+ *
+ * FUNC: openvpn_plugin_client_constructor_v1
+ * FUNC: openvpn_plugin_func_v1 OPENVPN_PLUGIN_ENABLE_PF
+ * FUNC: openvpn_plugin_func_v1 OPENVPN_PLUGIN_TLS_VERIFY (called once for every cert
+ *                                                     in the server chain)
+ * FUNC: openvpn_plugin_func_v1 OPENVPN_PLUGIN_AUTH_USER_PASS_VERIFY
+ * FUNC: openvpn_plugin_func_v1 OPENVPN_PLUGIN_TLS_FINAL
+ * FUNC: openvpn_plugin_func_v1 OPENVPN_PLUGIN_IPCHANGE
+ *
+ * [If OPENVPN_PLUGIN_AUTH_USER_PASS_VERIFY returned OPENVPN_PLUGIN_FUNC_DEFERRED,
+ * we don't proceed until authentication is verified via auth_control_file]
+ *
+ * FUNC: openvpn_plugin_func_v1 OPENVPN_PLUGIN_CLIENT_CONNECT_V2
+ * FUNC: openvpn_plugin_func_v1 OPENVPN_PLUGIN_LEARN_ADDRESS
+ *
+ * [Client session ensues]
+ *
+ * For each "TLS soft reset", according to reneg-sec option (or similar):
+ *
+ * FUNC: openvpn_plugin_func_v1 OPENVPN_PLUGIN_ENABLE_PF
+ *
+ * FUNC: openvpn_plugin_func_v1 OPENVPN_PLUGIN_TLS_VERIFY (called once for every cert
+ *                                                     in the server chain)
+ * FUNC: openvpn_plugin_func_v1 OPENVPN_PLUGIN_AUTH_USER_PASS_VERIFY
+ * FUNC: openvpn_plugin_func_v1 OPENVPN_PLUGIN_TLS_FINAL
+ *
+ * [If OPENVPN_PLUGIN_AUTH_USER_PASS_VERIFY returned OPENVPN_PLUGIN_FUNC_DEFERRED,
+ * we expect that authentication is verified via auth_control_file within
+ * the number of seconds defined by the "hand-window" option.  Data channel traffic
+ * will continue to flow uninterrupted during this period.]
+ *
+ * [Client session continues]
+ *
+ * FUNC: openvpn_plugin_func_v1 OPENVPN_PLUGIN_CLIENT_DISCONNECT
+ * FUNC: openvpn_plugin_client_destructor_v1
+ *
+ * [ some time may pass ]
+ *
+ * FUNC: openvpn_plugin_func_v1 OPENVPN_PLUGIN_LEARN_ADDRESS (this coincides with a
+ *                                                            lazy free of initial
+ *                                                            learned addr object)
+ * Server Shutdown:
+ *
+ * FUNC: openvpn_plugin_func_v1 OPENVPN_PLUGIN_DOWN
+ * FUNC: openvpn_plugin_client_destructor_v1 (top-level "generic" client)
+ * FUNC: openvpn_plugin_close_v1
+ */
+#define OPENVPN_PLUGIN_UP                        0
+#define OPENVPN_PLUGIN_DOWN                      1
+#define OPENVPN_PLUGIN_ROUTE_UP                  2
+#define OPENVPN_PLUGIN_IPCHANGE                  3
+#define OPENVPN_PLUGIN_TLS_VERIFY                4
+#define OPENVPN_PLUGIN_AUTH_USER_PASS_VERIFY     5
+#define OPENVPN_PLUGIN_CLIENT_CONNECT            6
+#define OPENVPN_PLUGIN_CLIENT_DISCONNECT         7
+#define OPENVPN_PLUGIN_LEARN_ADDRESS             8
+#define OPENVPN_PLUGIN_CLIENT_CONNECT_V2         9
+#define OPENVPN_PLUGIN_TLS_FINAL                10
+#define OPENVPN_PLUGIN_ENABLE_PF                11
+#define OPENVPN_PLUGIN_ROUTE_PREDOWN            12
+#define OPENVPN_PLUGIN_CLIENT_CONNECT_DEFER     13
+#define OPENVPN_PLUGIN_CLIENT_CONNECT_DEFER_V2  14
+#define OPENVPN_PLUGIN_N                        15
+
+/*
+ * Build a mask out of a set of plug-in types.
+ */
+#define OPENVPN_PLUGIN_MASK(x) (1<<(x))
+
+/*
+ * A pointer to a plugin-defined object which contains
+ * the object state.
+ */
+typedef void *openvpn_plugin_handle_t;
+
+/*
+ * Return value for openvpn_plugin_func_v1 function
+ */
+#define OPENVPN_PLUGIN_FUNC_SUCCESS  0
+#define OPENVPN_PLUGIN_FUNC_ERROR    1
+#define OPENVPN_PLUGIN_FUNC_DEFERRED 2
+
+/*
+ * For Windows (needs to be modified for MSVC)
+ */
+#if defined(_WIN32) && !defined(OPENVPN_PLUGIN_H)
+#define OPENVPN_EXPORT __declspec(dllexport)
+#else
+#define OPENVPN_EXPORT
+#endif
+
+/*
+ * If OPENVPN_PLUGIN_H is defined, we know that we are being
+ * included in an OpenVPN compile, rather than a plugin compile.
+ */
+#ifdef OPENVPN_PLUGIN_H
+
+/*
+ * We are compiling OpenVPN.
+ */
+#define OPENVPN_PLUGIN_DEF        typedef
+#define OPENVPN_PLUGIN_FUNC(name) (*name)
+
+#else  /* ifdef OPENVPN_PLUGIN_H */
+
+/*
+ * We are compiling plugin.
+ */
+#define OPENVPN_PLUGIN_DEF        OPENVPN_EXPORT
+#define OPENVPN_PLUGIN_FUNC(name) name
+
+#endif
+
+/*
+ * Used by openvpn_plugin_func to return structured
+ * data.  The plugin should allocate all structure
+ * instances, name strings, and value strings with
+ * malloc, since OpenVPN will assume that it
+ * can free the list by calling free() over the same.
+ */
+struct openvpn_plugin_string_list
+{
+    struct openvpn_plugin_string_list *next;
+    char *name;
+    char *value;
+};
+
+
+/* openvpn_plugin_{open,func}_v3() related structs */
+
+/**
+ * Defines version of the v3 plugin argument structs
+ *
+ * Whenever one or more of these structs are modified, this constant
+ * must be updated.  A changelog should be appended in this comment
+ * as well, to make it easier to see what information is available
+ * in the different versions.
+ *
+ * Version   Comment
+ *    1      Initial plugin v3 structures providing the same API as
+ *           the v2 plugin interface, X509 certificate information +
+ *           a logging API for plug-ins.
+ *
+ *    2      Added ssl_api member in struct openvpn_plugin_args_open_in
+ *           which identifies the SSL implementation OpenVPN is compiled
+ *           against.
+ *
+ *    3      Added ovpn_version, ovpn_version_major, ovpn_version_minor
+ *           and ovpn_version_patch to provide the runtime version of
+ *           OpenVPN to plug-ins.
+ *
+ *    4      Exported secure_memzero() as plugin_secure_memzero()
+ *
+ *    5      Exported openvpn_base64_encode() as plugin_base64_encode()
+ *           Exported openvpn_base64_decode() as plugin_base64_decode()
+ */
+#define OPENVPN_PLUGINv3_STRUCTVER 5
+
+/**
+ * Definitions needed for the plug-in callback functions.
+ */
+typedef enum
+{
+    PLOG_ERR    = (1 << 0),/* Error condition message */
+    PLOG_WARN   = (1 << 1),/* General warning message */
+    PLOG_NOTE   = (1 << 2),/* Informational message */
+    PLOG_DEBUG  = (1 << 3),/* Debug message, displayed if verb >= 7 */
+
+    PLOG_ERRNO  = (1 << 8),/* Add error description to message */
+    PLOG_NOMUTE = (1 << 9), /* Mute setting does not apply for message */
+
+} openvpn_plugin_log_flags_t;
+
+
+#ifdef __GNUC__
+#if __USE_MINGW_ANSI_STDIO
+#define _ovpn_chk_fmt(a, b) __attribute__ ((format(gnu_printf, (a), (b))))
+#else
+#define _ovpn_chk_fmt(a, b) __attribute__ ((format(__printf__, (a), (b))))
+#endif
+#else  /* ifdef __GNUC__ */
+#define _ovpn_chk_fmt(a, b)
+#endif
+
+typedef void (*plugin_log_t)(openvpn_plugin_log_flags_t flags,
+                             const char *plugin_name,
+                             const char *format, ...) _ovpn_chk_fmt (3, 4);
+
+typedef void (*plugin_vlog_t)(openvpn_plugin_log_flags_t flags,
+                              const char *plugin_name,
+                              const char *format,
+                              va_list arglist) _ovpn_chk_fmt (3, 0);
+/* #undef _ovpn_chk_fmt */
+
+/**
+ *  Export of secure_memzero() to be used inside plug-ins
+ *
+ *  @param data   Pointer to data to zeroise
+ *  @param len    Length of data, in bytes
+ *
+ */
+typedef void (*plugin_secure_memzero_t)(void *data, size_t len);
+
+/**
+ *  Export of openvpn_base64_encode() to be used inside plug-ins
+ *
+ *  @param data   Pointer to data to BASE64 encode
+ *  @param size   Length of data, in bytes
+ *  @param *str   Pointer to the return buffer.  This needed memory is
+ *                allocated by openvpn_base64_encode() and needs to be free()d
+ *                after use.
+ *
+ *  @return int   Returns the length of the buffer created, or -1 on error.
+ *
+ */
+typedef int (*plugin_base64_encode_t)(const void *data, int size, char **str);
+
+/**
+ *  Export of openvpn_base64_decode() to be used inside plug-ins
+ *
+ *  @param str    Pointer to the BASE64 encoded data
+ *  @param data   Pointer to the buffer where save the decoded data
+ *  @param size   Size of the destination buffer
+ *
+ *  @return int   Returns the length of the decoded data, or -1 on error or
+ *                if the destination buffer is too small.
+ *
+ */
+typedef int (*plugin_base64_decode_t)(const char *str, void *data, int size);
+
+
+/**
+ * Used by the openvpn_plugin_open_v3() function to pass callback
+ * function pointers to the plug-in.
+ *
+ * plugin_log
+ * plugin_vlog : Use these functions to add information to the OpenVPN log file.
+ *               Messages will only be displayed if the plugin_name parameter
+ *               is set. PLOG_DEBUG messages will only be displayed with plug-in
+ *               debug log verbosity (at the time of writing that's verb >= 7).
+ *
+ * plugin_secure_memzero
+ *             : Use this function to securely wipe sensitive information from
+ *               memory.  This function is declared in a way that the compiler
+ *               will not remove these function calls during the compiler
+ *               optimization phase.
+ */
+struct openvpn_plugin_callbacks
+{
+    plugin_log_t plugin_log;
+    plugin_vlog_t plugin_vlog;
+    plugin_secure_memzero_t plugin_secure_memzero;
+    plugin_base64_encode_t plugin_base64_encode;
+    plugin_base64_decode_t plugin_base64_decode;
+};
+
+/**
+ * Used by the openvpn_plugin_open_v3() function to indicate to the
+ * plug-in what kind of SSL implementation OpenVPN uses.  This is
+ * to avoid SEGV issues when OpenVPN is complied against mbed TLS
+ * and the plug-in against OpenSSL.
+ */
+typedef enum {
+    SSLAPI_NONE,
+    SSLAPI_OPENSSL,
+    SSLAPI_MBEDTLS
+} ovpnSSLAPI;
+
+/**
+ * Arguments used to transport variables to the plug-in.
+ * The struct openvpn_plugin_args_open_in is only used
+ * by the openvpn_plugin_open_v3() function.
+ *
+ * STRUCT MEMBERS
+ *
+ * type_mask : Set by OpenVPN to the logical OR of all script
+ *             types which this version of OpenVPN supports.
+ *
+ * argv : a NULL-terminated array of options provided to the OpenVPN
+ *        "plug-in" directive.  argv[0] is the dynamic library pathname.
+ *
+ * envp : a NULL-terminated array of OpenVPN-set environmental
+ *        variables in "name=value" format.  Note that for security reasons,
+ *        these variables are not actually written to the "official"
+ *        environmental variable store of the process.
+ *
+ * callbacks : a pointer to the plug-in callback function struct.
+ *
+ */
+struct openvpn_plugin_args_open_in
+{
+    const int type_mask;
+    const char **const argv;
+    const char **const envp;
+    struct openvpn_plugin_callbacks *callbacks;
+    const ovpnSSLAPI ssl_api;
+    const char *ovpn_version;
+    const unsigned int ovpn_version_major;
+    const unsigned int ovpn_version_minor;
+    const char *const ovpn_version_patch;
+};
+
+
+/**
+ * Arguments used to transport variables from the plug-in back
+ * to the OpenVPN process.  The struct openvpn_plugin_args_open_return
+ * is only used by the openvpn_plugin_open_v3() function.
+ *
+ * STRUCT MEMBERS
+ *
+ * type_mask  : The plug-in should set this value to the logical OR of all script
+ *              types which the plug-in wants to intercept.  For example, if the
+ *              script wants to intercept the client-connect and client-disconnect
+ *              script types:
+ *
+ *              type_mask = OPENVPN_PLUGIN_MASK(OPENVPN_PLUGIN_CLIENT_CONNECT)
+ *                         | OPENVPN_PLUGIN_MASK(OPENVPN_PLUGIN_CLIENT_DISCONNECT)
+ *
+ * handle :     Pointer to a global plug-in context, created by the plug-in.  This pointer
+ *              is passed on to the other plug-in calls.
+ *
+ * return_list : used to return data back to OpenVPN.
+ *
+ */
+struct openvpn_plugin_args_open_return
+{
+    int type_mask;
+    openvpn_plugin_handle_t handle;
+    struct openvpn_plugin_string_list **return_list;
+};
+
+/**
+ * Arguments used to transport variables to and from the
+ * plug-in.  The struct openvpn_plugin_args_func is only used
+ * by the openvpn_plugin_func_v3() function.
+ *
+ * STRUCT MEMBERS:
+ *
+ * type : one of the PLUGIN_x types.
+ *
+ * argv : a NULL-terminated array of "command line" options which
+ *        would normally be passed to the script.  argv[0] is the dynamic
+ *        library pathname.
+ *
+ * envp : a NULL-terminated array of OpenVPN-set environmental
+ *        variables in "name=value" format.  Note that for security reasons,
+ *        these variables are not actually written to the "official"
+ *        environmental variable store of the process.
+ *
+ * handle : Pointer to a global plug-in context, created by the plug-in's openvpn_plugin_open_v3().
+ *
+ * per_client_context : the per-client context pointer which was returned by
+ *        openvpn_plugin_client_constructor_v1, if defined.
+ *
+ * current_cert_depth : Certificate depth of the certificate being passed over
+ *
+ * *current_cert : X509 Certificate object received from the client
+ *
+ */
+struct openvpn_plugin_args_func_in
+{
+    const int type;
+    const char **const argv;
+    const char **const envp;
+    openvpn_plugin_handle_t handle;
+    void *per_client_context;
+    int current_cert_depth;
+    openvpn_x509_cert_t *current_cert;
+};
+
+
+/**
+ * Arguments used to transport variables to and from the
+ * plug-in.  The struct openvpn_plugin_args_func is only used
+ * by the openvpn_plugin_func_v3() function.
+ *
+ * STRUCT MEMBERS:
+ *
+ * return_list : used to return data back to OpenVPN for further processing/usage by
+ *               the OpenVPN executable.
+ *
+ */
+struct openvpn_plugin_args_func_return
+{
+    struct openvpn_plugin_string_list **return_list;
+};
+
+/*
+ * Multiple plugin modules can be cascaded, and modules can be
+ * used in tandem with scripts.  The order of operation is that
+ * the module func() functions are called in the order that
+ * the modules were specified in the config file.  If a script
+ * was specified as well, it will be called last.  If the
+ * return code of the module/script controls an authentication
+ * function (such as tls-verify or auth-user-pass-verify), then
+ * every module and script must return success (0) in order for
+ * the connection to be authenticated.
+ *
+ * Notes:
+ *
+ * Plugins which use a privilege-separation model (by forking in
+ * their initialization function before the main OpenVPN process
+ * downgrades root privileges and/or executes a chroot) must
+ * daemonize after a fork if the "daemon" environmental variable is
+ * set.  In addition, if the "daemon_log_redirect" variable is set,
+ * the plugin should preserve stdout/stderr across the daemon()
+ * syscall.  See the daemonize() function in plugin/auth-pam/auth-pam.c
+ * for an example.
+ */
+
+/*
+ * Prototypes for functions which OpenVPN plug-ins must define.
+ */
+
+/*
+ * FUNCTION: openvpn_plugin_open_v2
+ *
+ * REQUIRED: YES
+ *
+ * Called on initial plug-in load.  OpenVPN will preserve plug-in state
+ * across SIGUSR1 restarts but not across SIGHUP restarts.  A SIGHUP reset
+ * will cause the plugin to be closed and reopened.
+ *
+ * ARGUMENTS
+ *
+ * *type_mask : Set by OpenVPN to the logical OR of all script
+ *              types which this version of OpenVPN supports.  The plug-in
+ *              should set this value to the logical OR of all script types
+ *              which the plug-in wants to intercept.  For example, if the
+ *              script wants to intercept the client-connect and
+ *              client-disconnect script types:
+ *
+ *              *type_mask = OPENVPN_PLUGIN_MASK(OPENVPN_PLUGIN_CLIENT_CONNECT)
+ *                         | OPENVPN_PLUGIN_MASK(OPENVPN_PLUGIN_CLIENT_DISCONNECT)
+ *
+ * argv : a NULL-terminated array of options provided to the OpenVPN
+ *        "plug-in" directive.  argv[0] is the dynamic library pathname.
+ *
+ * envp : a NULL-terminated array of OpenVPN-set environmental
+ *        variables in "name=value" format.  Note that for security reasons,
+ *        these variables are not actually written to the "official"
+ *        environmental variable store of the process.
+ *
+ * return_list : used to return data back to OpenVPN.
+ *
+ * RETURN VALUE
+ *
+ * An openvpn_plugin_handle_t value on success, NULL on failure
+ */
+OPENVPN_PLUGIN_DEF openvpn_plugin_handle_t OPENVPN_PLUGIN_FUNC(openvpn_plugin_open_v2)
+    (unsigned int *type_mask,
+    const char *argv[],
+    const char *envp[],
+    struct openvpn_plugin_string_list **return_list);
+
+/*
+ * FUNCTION: openvpn_plugin_func_v2
+ *
+ * Called to perform the work of a given script type.
+ *
+ * REQUIRED: YES
+ *
+ * ARGUMENTS
+ *
+ * handle : the openvpn_plugin_handle_t value which was returned by
+ *          openvpn_plugin_open.
+ *
+ * type : one of the PLUGIN_x types
+ *
+ * argv : a NULL-terminated array of "command line" options which
+ *        would normally be passed to the script.  argv[0] is the dynamic
+ *        library pathname.
+ *
+ * envp : a NULL-terminated array of OpenVPN-set environmental
+ *        variables in "name=value" format.  Note that for security reasons,
+ *        these variables are not actually written to the "official"
+ *        environmental variable store of the process.
+ *
+ * per_client_context : the per-client context pointer which was returned by
+ *        openvpn_plugin_client_constructor_v1, if defined.
+ *
+ * return_list : used to return data back to OpenVPN.
+ *
+ * RETURN VALUE
+ *
+ * OPENVPN_PLUGIN_FUNC_SUCCESS on success, OPENVPN_PLUGIN_FUNC_ERROR on failure
+ *
+ * In addition, OPENVPN_PLUGIN_FUNC_DEFERRED may be returned by
+ * OPENVPN_PLUGIN_AUTH_USER_PASS_VERIFY, OPENVPN_PLUGIN_CLIENT_CONNECT and
+ * OPENVPN_PLUGIN_CLIENT_CONNECT_V2. This enables asynchronous
+ * authentication or client connect  where the plugin (or one of its agents)
+ * may indicate authentication success/failure or client configuration some
+ * number of seconds after the return of the function handler.
+ * For OPENVPN_PLUGIN_AUTH_USER_PASS_VERIFY and OPENVPN_PLUGIN_CLIENT_CONNECT
+ * this is done by writing a single char to the file named by
+ * auth_control_file/client_connect_deferred_file
+ * in the environmental variable list (envp).
+ *
+ * In addition the OPENVPN_PLUGIN_CLIENT_CONNECT_DEFER and
+ * OPENVPN_PLUGIN_CLIENT_CONNECT_DEFER_V2 are called when OpenVPN tries to
+ * get the deferred result. For a V2 call implementing this function is
+ * required as information is not passed by files. For the normal version
+ * the call is optional.
+ *
+ * first char of auth_control_file:
+ * '0' -- indicates auth failure
+ * '1' -- indicates auth success
+ *
+ * OpenVPN will delete the auth_control_file after it goes out of scope.
+ *
+ * If an OPENVPN_PLUGIN_ENABLE_PF handler is defined and returns success
+ * for a particular client instance, packet filtering will be enabled for that
+ * instance.  OpenVPN will then attempt to read the packet filter configuration
+ * from the temporary file named by the environmental variable pf_file.  This
+ * file may be generated asynchronously and may be dynamically updated during the
+ * client session, however the client will be blocked from sending or receiving
+ * VPN tunnel packets until the packet filter file has been generated.  OpenVPN
+ * will periodically test the packet filter file over the life of the client
+ * instance and reload when modified.  OpenVPN will delete the packet filter file
+ * when the client instance goes out of scope.
+ *
+ * Packet filter file grammar:
+ *
+ * [CLIENTS DROP|ACCEPT]
+ * {+|-}common_name1
+ * {+|-}common_name2
+ * . . .
+ * [SUBNETS DROP|ACCEPT]
+ * {+|-}subnet1
+ * {+|-}subnet2
+ * . . .
+ * [END]
+ *
+ * Subnet: IP-ADDRESS | IP-ADDRESS/NUM_NETWORK_BITS
+ *
+ * CLIENTS refers to the set of clients (by their common-name) which
+ * this instance is allowed ('+') to connect to, or is excluded ('-')
+ * from connecting to.  Note that in the case of client-to-client
+ * connections, such communication must be allowed by the packet filter
+ * configuration files of both clients.
+ *
+ * SUBNETS refers to IP addresses or IP address subnets which this
+ * instance may connect to ('+') or is excluded ('-') from connecting
+ * to.
+ *
+ * DROP or ACCEPT defines default policy when there is no explicit match
+ * for a common-name or subnet.  The [END] tag must exist.  A special
+ * purpose tag called [KILL] will immediately kill the client instance.
+ * A given client or subnet rule applies to both incoming and outgoing
+ * packets.
+ *
+ * See plugin/defer/simple.c for an example on using asynchronous
+ * authentication and client-specific packet filtering.
+ */
+OPENVPN_PLUGIN_DEF int OPENVPN_PLUGIN_FUNC(openvpn_plugin_func_v2)
+    (openvpn_plugin_handle_t handle,
+    const int type,
+    const char *argv[],
+    const char *envp[],
+    void *per_client_context,
+    struct openvpn_plugin_string_list **return_list);
+
+
+/*
+ * FUNCTION: openvpn_plugin_open_v3
+ *
+ * REQUIRED: YES
+ *
+ * Called on initial plug-in load.  OpenVPN will preserve plug-in state
+ * across SIGUSR1 restarts but not across SIGHUP restarts.  A SIGHUP reset
+ * will cause the plugin to be closed and reopened.
+ *
+ * ARGUMENTS
+ *
+ * version : fixed value, defines the API version of the OpenVPN plug-in API.  The plug-in
+ *           should validate that this value is matching the OPENVPN_PLUGINv3_STRUCTVER
+ *           value.
+ *
+ * arguments : Structure with all arguments available to the plug-in.
+ *
+ * retptr :    used to return data back to OpenVPN.
+ *
+ * RETURN VALUE
+ *
+ * OPENVPN_PLUGIN_FUNC_SUCCESS on success, OPENVPN_PLUGIN_FUNC_ERROR on failure
+ */
+OPENVPN_PLUGIN_DEF int OPENVPN_PLUGIN_FUNC(openvpn_plugin_open_v3)
+    (const int version,
+    struct openvpn_plugin_args_open_in const *arguments,
+    struct openvpn_plugin_args_open_return *retptr);
+
+/*
+ * FUNCTION: openvpn_plugin_func_v3
+ *
+ * Called to perform the work of a given script type.
+ *
+ * REQUIRED: YES
+ *
+ * ARGUMENTS
+ *
+ * version : fixed value, defines the API version of the OpenVPN plug-in API.  The plug-in
+ *           should validate that this value is matching the OPENVPN_PLUGIN_VERSION value.
+ *
+ * handle : the openvpn_plugin_handle_t value which was returned by
+ *          openvpn_plugin_open.
+ *
+ * return_list : used to return data back to OpenVPN.
+ *
+ * RETURN VALUE
+ *
+ * OPENVPN_PLUGIN_FUNC_SUCCESS on success, OPENVPN_PLUGIN_FUNC_ERROR on failure
+ *
+ * In addition, OPENVPN_PLUGIN_FUNC_DEFERRED may be returned by
+ * OPENVPN_PLUGIN_AUTH_USER_PASS_VERIFY.  This enables asynchronous
+ * authentication where the plugin (or one of its agents) may indicate
+ * authentication success/failure some number of seconds after the return
+ * of the OPENVPN_PLUGIN_AUTH_USER_PASS_VERIFY handler by writing a single
+ * char to the file named by auth_control_file in the environmental variable
+ * list (envp).
+ *
+ * first char of auth_control_file:
+ * '0' -- indicates auth failure
+ * '1' -- indicates auth success
+ *
+ * OpenVPN will delete the auth_control_file after it goes out of scope.
+ *
+ * If an OPENVPN_PLUGIN_ENABLE_PF handler is defined and returns success
+ * for a particular client instance, packet filtering will be enabled for that
+ * instance.  OpenVPN will then attempt to read the packet filter configuration
+ * from the temporary file named by the environmental variable pf_file.  This
+ * file may be generated asynchronously and may be dynamically updated during the
+ * client session, however the client will be blocked from sending or receiving
+ * VPN tunnel packets until the packet filter file has been generated.  OpenVPN
+ * will periodically test the packet filter file over the life of the client
+ * instance and reload when modified.  OpenVPN will delete the packet filter file
+ * when the client instance goes out of scope.
+ *
+ * Packet filter file grammar:
+ *
+ * [CLIENTS DROP|ACCEPT]
+ * {+|-}common_name1
+ * {+|-}common_name2
+ * . . .
+ * [SUBNETS DROP|ACCEPT]
+ * {+|-}subnet1
+ * {+|-}subnet2
+ * . . .
+ * [END]
+ *
+ * Subnet: IP-ADDRESS | IP-ADDRESS/NUM_NETWORK_BITS
+ *
+ * CLIENTS refers to the set of clients (by their common-name) which
+ * this instance is allowed ('+') to connect to, or is excluded ('-')
+ * from connecting to.  Note that in the case of client-to-client
+ * connections, such communication must be allowed by the packet filter
+ * configuration files of both clients.
+ *
+ * SUBNETS refers to IP addresses or IP address subnets which this
+ * instance may connect to ('+') or is excluded ('-') from connecting
+ * to.
+ *
+ * DROP or ACCEPT defines default policy when there is no explicit match
+ * for a common-name or subnet.  The [END] tag must exist.  A special
+ * purpose tag called [KILL] will immediately kill the client instance.
+ * A given client or subnet rule applies to both incoming and outgoing
+ * packets.
+ *
+ * See plugin/defer/simple.c for an example on using asynchronous
+ * authentication and client-specific packet filtering.
+ */
+OPENVPN_PLUGIN_DEF int OPENVPN_PLUGIN_FUNC(openvpn_plugin_func_v3)
+    (const int version,
+    struct openvpn_plugin_args_func_in const *arguments,
+    struct openvpn_plugin_args_func_return *retptr);
+
+/*
+ * FUNCTION: openvpn_plugin_close_v1
+ *
+ * REQUIRED: YES
+ *
+ * ARGUMENTS
+ *
+ * handle : the openvpn_plugin_handle_t value which was returned by
+ *          openvpn_plugin_open.
+ *
+ * Called immediately prior to plug-in unload.
+ */
+OPENVPN_PLUGIN_DEF void OPENVPN_PLUGIN_FUNC(openvpn_plugin_close_v1)
+    (openvpn_plugin_handle_t handle);
+
+/*
+ * FUNCTION: openvpn_plugin_abort_v1
+ *
+ * REQUIRED: NO
+ *
+ * ARGUMENTS
+ *
+ * handle : the openvpn_plugin_handle_t value which was returned by
+ *          openvpn_plugin_open.
+ *
+ * Called when OpenVPN is in the process of aborting due to a fatal error.
+ * Will only be called on an open context returned by a prior successful
+ * openvpn_plugin_open callback.
+ */
+OPENVPN_PLUGIN_DEF void OPENVPN_PLUGIN_FUNC(openvpn_plugin_abort_v1)
+    (openvpn_plugin_handle_t handle);
+
+/*
+ * FUNCTION: openvpn_plugin_client_constructor_v1
+ *
+ * Called to allocate a per-client memory region, which
+ * is then passed to the openvpn_plugin_func_v2 function.
+ * This function is called every time the OpenVPN server
+ * constructs a client instance object, which normally
+ * occurs when a session-initiating packet is received
+ * by a new client, even before the client has authenticated.
+ *
+ * This function should allocate the private memory needed
+ * by the plugin to track individual OpenVPN clients, and
+ * return a void * to this memory region.
+ *
+ * REQUIRED: NO
+ *
+ * ARGUMENTS
+ *
+ * handle : the openvpn_plugin_handle_t value which was returned by
+ *          openvpn_plugin_open.
+ *
+ * RETURN VALUE
+ *
+ * void * pointer to plugin's private per-client memory region, or NULL
+ * if no memory region is required.
+ */
+OPENVPN_PLUGIN_DEF void *OPENVPN_PLUGIN_FUNC(openvpn_plugin_client_constructor_v1)
+    (openvpn_plugin_handle_t handle);
+
+/*
+ * FUNCTION: openvpn_plugin_client_destructor_v1
+ *
+ * This function is called on client instance object destruction.
+ *
+ * REQUIRED: NO
+ *
+ * ARGUMENTS
+ *
+ * handle : the openvpn_plugin_handle_t value which was returned by
+ *          openvpn_plugin_open.
+ *
+ * per_client_context : the per-client context pointer which was returned by
+ *        openvpn_plugin_client_constructor_v1, if defined.
+ */
+OPENVPN_PLUGIN_DEF void OPENVPN_PLUGIN_FUNC(openvpn_plugin_client_destructor_v1)
+    (openvpn_plugin_handle_t handle, void *per_client_context);
+
+/*
+ * FUNCTION: openvpn_plugin_select_initialization_point_v1
+ *
+ * Several different points exist in OpenVPN's initialization sequence where
+ * the openvpn_plugin_open function can be called.  While the default is
+ * OPENVPN_PLUGIN_INIT_PRE_DAEMON, this function can be used to select a
+ * different initialization point.  For example, if your plugin needs to
+ * return configuration parameters to OpenVPN, use
+ * OPENVPN_PLUGIN_INIT_PRE_CONFIG_PARSE.
+ *
+ * REQUIRED: NO
+ *
+ * RETURN VALUE:
+ *
+ * An OPENVPN_PLUGIN_INIT_x value.
+ */
+#define OPENVPN_PLUGIN_INIT_PRE_CONFIG_PARSE 1
+#define OPENVPN_PLUGIN_INIT_PRE_DAEMON       2 /* default */
+#define OPENVPN_PLUGIN_INIT_POST_DAEMON      3
+#define OPENVPN_PLUGIN_INIT_POST_UID_CHANGE  4
+
+OPENVPN_PLUGIN_DEF int OPENVPN_PLUGIN_FUNC(openvpn_plugin_select_initialization_point_v1)
+    (void);
+
+/*
+ * FUNCTION: openvpn_plugin_min_version_required_v1
+ *
+ * This function is called by OpenVPN to query the minimum
+ * plugin interface version number required by the plugin.
+ *
+ * REQUIRED: NO
+ *
+ * RETURN VALUE
+ *
+ * The minimum OpenVPN plugin interface version number necessary to support
+ * this plugin.
+ */
+OPENVPN_PLUGIN_DEF int OPENVPN_PLUGIN_FUNC(openvpn_plugin_min_version_required_v1)
+    (void);
+
+/*
+ * Deprecated functions which are still supported for backward compatibility.
+ */
+
+OPENVPN_PLUGIN_DEF openvpn_plugin_handle_t OPENVPN_PLUGIN_FUNC(openvpn_plugin_open_v1)
+    (unsigned int *type_mask,
+    const char *argv[],
+    const char *envp[]);
+
+OPENVPN_PLUGIN_DEF int OPENVPN_PLUGIN_FUNC(openvpn_plugin_func_v1)
+    (openvpn_plugin_handle_t handle, const int type, const char *argv[], const char *envp[]);
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* OPENVPN_PLUGIN_H_ */
diff --git a/install-sh b/install-sh
new file mode 100755
index 0000000..8175c64
--- /dev/null
+++ b/install-sh
@@ -0,0 +1,518 @@
+#!/bin/sh
+# install - install a program, script, or datafile
+
+scriptversion=2018-03-11.20; # UTC
+
+# This originates from X11R5 (mit/util/scripts/install.sh), which was
+# later released in X11R6 (xc/config/util/install.sh) with the
+# following copyright and license.
+#
+# Copyright (C) 1994 X Consortium
+#
+# Permission is hereby granted, free of charge, to any person obtaining a copy
+# of this software and associated documentation files (the "Software"), to
+# deal in the Software without restriction, including without limitation the
+# rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
+# sell copies of the Software, and to permit persons to whom the Software is
+# furnished to do so, subject to the following conditions:
+#
+# The above copyright notice and this permission notice shall be included in
+# all copies or substantial portions of the Software.
+#
+# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL THE
+# X CONSORTIUM BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
+# AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNEC-
+# TION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+#
+# Except as contained in this notice, the name of the X Consortium shall not
+# be used in advertising or otherwise to promote the sale, use or other deal-
+# ings in this Software without prior written authorization from the X Consor-
+# tium.
+#
+#
+# FSF changes to this file are in the public domain.
+#
+# Calling this script install-sh is preferred over install.sh, to prevent
+# 'make' implicit rules from creating a file called install from it
+# when there is no Makefile.
+#
+# This script is compatible with the BSD install script, but was written
+# from scratch.
+
+tab='	'
+nl='
+'
+IFS=" $tab$nl"
+
+# Set DOITPROG to "echo" to test this script.
+
+doit=${DOITPROG-}
+doit_exec=${doit:-exec}
+
+# Put in absolute file names if you don't have them in your path;
+# or use environment vars.
+
+chgrpprog=${CHGRPPROG-chgrp}
+chmodprog=${CHMODPROG-chmod}
+chownprog=${CHOWNPROG-chown}
+cmpprog=${CMPPROG-cmp}
+cpprog=${CPPROG-cp}
+mkdirprog=${MKDIRPROG-mkdir}
+mvprog=${MVPROG-mv}
+rmprog=${RMPROG-rm}
+stripprog=${STRIPPROG-strip}
+
+posix_mkdir=
+
+# Desired mode of installed file.
+mode=0755
+
+chgrpcmd=
+chmodcmd=$chmodprog
+chowncmd=
+mvcmd=$mvprog
+rmcmd="$rmprog -f"
+stripcmd=
+
+src=
+dst=
+dir_arg=
+dst_arg=
+
+copy_on_change=false
+is_target_a_directory=possibly
+
+usage="\
+Usage: $0 [OPTION]... [-T] SRCFILE DSTFILE
+   or: $0 [OPTION]... SRCFILES... DIRECTORY
+   or: $0 [OPTION]... -t DIRECTORY SRCFILES...
+   or: $0 [OPTION]... -d DIRECTORIES...
+
+In the 1st form, copy SRCFILE to DSTFILE.
+In the 2nd and 3rd, copy all SRCFILES to DIRECTORY.
+In the 4th, create DIRECTORIES.
+
+Options:
+     --help     display this help and exit.
+     --version  display version info and exit.
+
+  -c            (ignored)
+  -C            install only if different (preserve the last data modification time)
+  -d            create directories instead of installing files.
+  -g GROUP      $chgrpprog installed files to GROUP.
+  -m MODE       $chmodprog installed files to MODE.
+  -o USER       $chownprog installed files to USER.
+  -s            $stripprog installed files.
+  -t DIRECTORY  install into DIRECTORY.
+  -T            report an error if DSTFILE is a directory.
+
+Environment variables override the default commands:
+  CHGRPPROG CHMODPROG CHOWNPROG CMPPROG CPPROG MKDIRPROG MVPROG
+  RMPROG STRIPPROG
+"
+
+while test $# -ne 0; do
+  case $1 in
+    -c) ;;
+
+    -C) copy_on_change=true;;
+
+    -d) dir_arg=true;;
+
+    -g) chgrpcmd="$chgrpprog $2"
+        shift;;
+
+    --help) echo "$usage"; exit $?;;
+
+    -m) mode=$2
+        case $mode in
+          *' '* | *"$tab"* | *"$nl"* | *'*'* | *'?'* | *'['*)
+            echo "$0: invalid mode: $mode" >&2
+            exit 1;;
+        esac
+        shift;;
+
+    -o) chowncmd="$chownprog $2"
+        shift;;
+
+    -s) stripcmd=$stripprog;;
+
+    -t)
+        is_target_a_directory=always
+        dst_arg=$2
+        # Protect names problematic for 'test' and other utilities.
+        case $dst_arg in
+          -* | [=\(\)!]) dst_arg=./$dst_arg;;
+        esac
+        shift;;
+
+    -T) is_target_a_directory=never;;
+
+    --version) echo "$0 $scriptversion"; exit $?;;
+
+    --) shift
+        break;;
+
+    -*) echo "$0: invalid option: $1" >&2
+        exit 1;;
+
+    *)  break;;
+  esac
+  shift
+done
+
+# We allow the use of options -d and -T together, by making -d
+# take the precedence; this is for compatibility with GNU install.
+
+if test -n "$dir_arg"; then
+  if test -n "$dst_arg"; then
+    echo "$0: target directory not allowed when installing a directory." >&2
+    exit 1
+  fi
+fi
+
+if test $# -ne 0 && test -z "$dir_arg$dst_arg"; then
+  # When -d is used, all remaining arguments are directories to create.
+  # When -t is used, the destination is already specified.
+  # Otherwise, the last argument is the destination.  Remove it from $@.
+  for arg
+  do
+    if test -n "$dst_arg"; then
+      # $@ is not empty: it contains at least $arg.
+      set fnord "$@" "$dst_arg"
+      shift # fnord
+    fi
+    shift # arg
+    dst_arg=$arg
+    # Protect names problematic for 'test' and other utilities.
+    case $dst_arg in
+      -* | [=\(\)!]) dst_arg=./$dst_arg;;
+    esac
+  done
+fi
+
+if test $# -eq 0; then
+  if test -z "$dir_arg"; then
+    echo "$0: no input file specified." >&2
+    exit 1
+  fi
+  # It's OK to call 'install-sh -d' without argument.
+  # This can happen when creating conditional directories.
+  exit 0
+fi
+
+if test -z "$dir_arg"; then
+  if test $# -gt 1 || test "$is_target_a_directory" = always; then
+    if test ! -d "$dst_arg"; then
+      echo "$0: $dst_arg: Is not a directory." >&2
+      exit 1
+    fi
+  fi
+fi
+
+if test -z "$dir_arg"; then
+  do_exit='(exit $ret); exit $ret'
+  trap "ret=129; $do_exit" 1
+  trap "ret=130; $do_exit" 2
+  trap "ret=141; $do_exit" 13
+  trap "ret=143; $do_exit" 15
+
+  # Set umask so as not to create temps with too-generous modes.
+  # However, 'strip' requires both read and write access to temps.
+  case $mode in
+    # Optimize common cases.
+    *644) cp_umask=133;;
+    *755) cp_umask=22;;
+
+    *[0-7])
+      if test -z "$stripcmd"; then
+        u_plus_rw=
+      else
+        u_plus_rw='% 200'
+      fi
+      cp_umask=`expr '(' 777 - $mode % 1000 ')' $u_plus_rw`;;
+    *)
+      if test -z "$stripcmd"; then
+        u_plus_rw=
+      else
+        u_plus_rw=,u+rw
+      fi
+      cp_umask=$mode$u_plus_rw;;
+  esac
+fi
+
+for src
+do
+  # Protect names problematic for 'test' and other utilities.
+  case $src in
+    -* | [=\(\)!]) src=./$src;;
+  esac
+
+  if test -n "$dir_arg"; then
+    dst=$src
+    dstdir=$dst
+    test -d "$dstdir"
+    dstdir_status=$?
+  else
+
+    # Waiting for this to be detected by the "$cpprog $src $dsttmp" command
+    # might cause directories to be created, which would be especially bad
+    # if $src (and thus $dsttmp) contains '*'.
+    if test ! -f "$src" && test ! -d "$src"; then
+      echo "$0: $src does not exist." >&2
+      exit 1
+    fi
+
+    if test -z "$dst_arg"; then
+      echo "$0: no destination specified." >&2
+      exit 1
+    fi
+    dst=$dst_arg
+
+    # If destination is a directory, append the input filename.
+    if test -d "$dst"; then
+      if test "$is_target_a_directory" = never; then
+        echo "$0: $dst_arg: Is a directory" >&2
+        exit 1
+      fi
+      dstdir=$dst
+      dstbase=`basename "$src"`
+      case $dst in
+	*/) dst=$dst$dstbase;;
+	*)  dst=$dst/$dstbase;;
+      esac
+      dstdir_status=0
+    else
+      dstdir=`dirname "$dst"`
+      test -d "$dstdir"
+      dstdir_status=$?
+    fi
+  fi
+
+  case $dstdir in
+    */) dstdirslash=$dstdir;;
+    *)  dstdirslash=$dstdir/;;
+  esac
+
+  obsolete_mkdir_used=false
+
+  if test $dstdir_status != 0; then
+    case $posix_mkdir in
+      '')
+        # Create intermediate dirs using mode 755 as modified by the umask.
+        # This is like FreeBSD 'install' as of 1997-10-28.
+        umask=`umask`
+        case $stripcmd.$umask in
+          # Optimize common cases.
+          *[2367][2367]) mkdir_umask=$umask;;
+          .*0[02][02] | .[02][02] | .[02]) mkdir_umask=22;;
+
+          *[0-7])
+            mkdir_umask=`expr $umask + 22 \
+              - $umask % 100 % 40 + $umask % 20 \
+              - $umask % 10 % 4 + $umask % 2
+            `;;
+          *) mkdir_umask=$umask,go-w;;
+        esac
+
+        # With -d, create the new directory with the user-specified mode.
+        # Otherwise, rely on $mkdir_umask.
+        if test -n "$dir_arg"; then
+          mkdir_mode=-m$mode
+        else
+          mkdir_mode=
+        fi
+
+        posix_mkdir=false
+        case $umask in
+          *[123567][0-7][0-7])
+            # POSIX mkdir -p sets u+wx bits regardless of umask, which
+            # is incompatible with FreeBSD 'install' when (umask & 300) != 0.
+            ;;
+          *)
+            # Note that $RANDOM variable is not portable (e.g. dash);  Use it
+            # here however when possible just to lower collision chance.
+            tmpdir=${TMPDIR-/tmp}/ins$RANDOM-$$
+
+            trap 'ret=$?; rmdir "$tmpdir/a/b" "$tmpdir/a" "$tmpdir" 2>/dev/null; exit $ret' 0
+
+            # Because "mkdir -p" follows existing symlinks and we likely work
+            # directly in world-writeable /tmp, make sure that the '$tmpdir'
+            # directory is successfully created first before we actually test
+            # 'mkdir -p' feature.
+            if (umask $mkdir_umask &&
+                $mkdirprog $mkdir_mode "$tmpdir" &&
+                exec $mkdirprog $mkdir_mode -p -- "$tmpdir/a/b") >/dev/null 2>&1
+            then
+              if test -z "$dir_arg" || {
+                   # Check for POSIX incompatibilities with -m.
+                   # HP-UX 11.23 and IRIX 6.5 mkdir -m -p sets group- or
+                   # other-writable bit of parent directory when it shouldn't.
+                   # FreeBSD 6.1 mkdir -m -p sets mode of existing directory.
+                   test_tmpdir="$tmpdir/a"
+                   ls_ld_tmpdir=`ls -ld "$test_tmpdir"`
+                   case $ls_ld_tmpdir in
+                     d????-?r-*) different_mode=700;;
+                     d????-?--*) different_mode=755;;
+                     *) false;;
+                   esac &&
+                   $mkdirprog -m$different_mode -p -- "$test_tmpdir" && {
+                     ls_ld_tmpdir_1=`ls -ld "$test_tmpdir"`
+                     test "$ls_ld_tmpdir" = "$ls_ld_tmpdir_1"
+                   }
+                 }
+              then posix_mkdir=:
+              fi
+              rmdir "$tmpdir/a/b" "$tmpdir/a" "$tmpdir"
+            else
+              # Remove any dirs left behind by ancient mkdir implementations.
+              rmdir ./$mkdir_mode ./-p ./-- "$tmpdir" 2>/dev/null
+            fi
+            trap '' 0;;
+        esac;;
+    esac
+
+    if
+      $posix_mkdir && (
+        umask $mkdir_umask &&
+        $doit_exec $mkdirprog $mkdir_mode -p -- "$dstdir"
+      )
+    then :
+    else
+
+      # The umask is ridiculous, or mkdir does not conform to POSIX,
+      # or it failed possibly due to a race condition.  Create the
+      # directory the slow way, step by step, checking for races as we go.
+
+      case $dstdir in
+        /*) prefix='/';;
+        [-=\(\)!]*) prefix='./';;
+        *)  prefix='';;
+      esac
+
+      oIFS=$IFS
+      IFS=/
+      set -f
+      set fnord $dstdir
+      shift
+      set +f
+      IFS=$oIFS
+
+      prefixes=
+
+      for d
+      do
+        test X"$d" = X && continue
+
+        prefix=$prefix$d
+        if test -d "$prefix"; then
+          prefixes=
+        else
+          if $posix_mkdir; then
+            (umask=$mkdir_umask &&
+             $doit_exec $mkdirprog $mkdir_mode -p -- "$dstdir") && break
+            # Don't fail if two instances are running concurrently.
+            test -d "$prefix" || exit 1
+          else
+            case $prefix in
+              *\'*) qprefix=`echo "$prefix" | sed "s/'/'\\\\\\\\''/g"`;;
+              *) qprefix=$prefix;;
+            esac
+            prefixes="$prefixes '$qprefix'"
+          fi
+        fi
+        prefix=$prefix/
+      done
+
+      if test -n "$prefixes"; then
+        # Don't fail if two instances are running concurrently.
+        (umask $mkdir_umask &&
+         eval "\$doit_exec \$mkdirprog $prefixes") ||
+          test -d "$dstdir" || exit 1
+        obsolete_mkdir_used=true
+      fi
+    fi
+  fi
+
+  if test -n "$dir_arg"; then
+    { test -z "$chowncmd" || $doit $chowncmd "$dst"; } &&
+    { test -z "$chgrpcmd" || $doit $chgrpcmd "$dst"; } &&
+    { test "$obsolete_mkdir_used$chowncmd$chgrpcmd" = false ||
+      test -z "$chmodcmd" || $doit $chmodcmd $mode "$dst"; } || exit 1
+  else
+
+    # Make a couple of temp file names in the proper directory.
+    dsttmp=${dstdirslash}_inst.$$_
+    rmtmp=${dstdirslash}_rm.$$_
+
+    # Trap to clean up those temp files at exit.
+    trap 'ret=$?; rm -f "$dsttmp" "$rmtmp" && exit $ret' 0
+
+    # Copy the file name to the temp name.
+    (umask $cp_umask && $doit_exec $cpprog "$src" "$dsttmp") &&
+
+    # and set any options; do chmod last to preserve setuid bits.
+    #
+    # If any of these fail, we abort the whole thing.  If we want to
+    # ignore errors from any of these, just make sure not to ignore
+    # errors from the above "$doit $cpprog $src $dsttmp" command.
+    #
+    { test -z "$chowncmd" || $doit $chowncmd "$dsttmp"; } &&
+    { test -z "$chgrpcmd" || $doit $chgrpcmd "$dsttmp"; } &&
+    { test -z "$stripcmd" || $doit $stripcmd "$dsttmp"; } &&
+    { test -z "$chmodcmd" || $doit $chmodcmd $mode "$dsttmp"; } &&
+
+    # If -C, don't bother to copy if it wouldn't change the file.
+    if $copy_on_change &&
+       old=`LC_ALL=C ls -dlL "$dst"     2>/dev/null` &&
+       new=`LC_ALL=C ls -dlL "$dsttmp"  2>/dev/null` &&
+       set -f &&
+       set X $old && old=:$2:$4:$5:$6 &&
+       set X $new && new=:$2:$4:$5:$6 &&
+       set +f &&
+       test "$old" = "$new" &&
+       $cmpprog "$dst" "$dsttmp" >/dev/null 2>&1
+    then
+      rm -f "$dsttmp"
+    else
+      # Rename the file to the real destination.
+      $doit $mvcmd -f "$dsttmp" "$dst" 2>/dev/null ||
+
+      # The rename failed, perhaps because mv can't rename something else
+      # to itself, or perhaps because mv is so ancient that it does not
+      # support -f.
+      {
+        # Now remove or move aside any old file at destination location.
+        # We try this two ways since rm can't unlink itself on some
+        # systems and the destination file might be busy for other
+        # reasons.  In this case, the final cleanup might fail but the new
+        # file should still install successfully.
+        {
+          test ! -f "$dst" ||
+          $doit $rmcmd -f "$dst" 2>/dev/null ||
+          { $doit $mvcmd -f "$dst" "$rmtmp" 2>/dev/null &&
+            { $doit $rmcmd -f "$rmtmp" 2>/dev/null; :; }
+          } ||
+          { echo "$0: cannot unlink or rename $dst" >&2
+            (exit 1); exit 1
+          }
+        } &&
+
+        # Now rename the file to the real destination.
+        $doit $mvcmd "$dsttmp" "$dst"
+      }
+    fi || exit 1
+
+    trap '' 0
+  fi
+done
+
+# Local variables:
+# eval: (add-hook 'before-save-hook 'time-stamp)
+# time-stamp-start: "scriptversion="
+# time-stamp-format: "%:y-%02m-%02d.%02H"
+# time-stamp-time-zone: "UTC0"
+# time-stamp-end: "; # UTC"
+# End:
diff --git a/ltmain.sh b/ltmain.sh
new file mode 100644
index 0000000..7f3523d
--- /dev/null
+++ b/ltmain.sh
@@ -0,0 +1,11149 @@
+#! /bin/sh
+## DO NOT EDIT - This file generated from ./build-aux/ltmain.in
+##               by inline-source v2014-01-03.01
+
+# libtool (GNU libtool) 2.4.6
+# Provide generalized library-building support services.
+# Written by Gordon Matzigkeit <gord@gnu.ai.mit.edu>, 1996
+
+# Copyright (C) 1996-2015 Free Software Foundation, Inc.
+# This is free software; see the source for copying conditions.  There is NO
+# warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
+
+# GNU Libtool is free software; you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation; either version 2 of the License, or
+# (at your option) any later version.
+#
+# As a special exception to the GNU General Public License,
+# if you distribute this file as part of a program or library that
+# is built using GNU Libtool, you may include this file under the
+# same distribution terms that you use for the rest of that program.
+#
+# GNU Libtool is distributed in the hope that it will be useful, but
+# WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+# General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program.  If not, see <http://www.gnu.org/licenses/>.
+
+
+PROGRAM=libtool
+PACKAGE=libtool
+VERSION=2.4.6
+package_revision=2.4.6
+
+
+## ------ ##
+## Usage. ##
+## ------ ##
+
+# Run './libtool --help' for help with using this script from the
+# command line.
+
+
+## ------------------------------- ##
+## User overridable command paths. ##
+## ------------------------------- ##
+
+# After configure completes, it has a better idea of some of the
+# shell tools we need than the defaults used by the functions shared
+# with bootstrap, so set those here where they can still be over-
+# ridden by the user, but otherwise take precedence.
+
+: ${AUTOCONF="autoconf"}
+: ${AUTOMAKE="automake"}
+
+
+## -------------------------- ##
+## Source external libraries. ##
+## -------------------------- ##
+
+# Much of our low-level functionality needs to be sourced from external
+# libraries, which are installed to $pkgauxdir.
+
+# Set a version string for this script.
+scriptversion=2015-01-20.17; # UTC
+
+# General shell script boiler plate, and helper functions.
+# Written by Gary V. Vaughan, 2004
+
+# Copyright (C) 2004-2015 Free Software Foundation, Inc.
+# This is free software; see the source for copying conditions.  There is NO
+# warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
+
+# This program is free software; you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation; either version 3 of the License, or
+# (at your option) any later version.
+
+# As a special exception to the GNU General Public License, if you distribute
+# this file as part of a program or library that is built using GNU Libtool,
+# you may include this file under the same distribution terms that you use
+# for the rest of that program.
+
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNES FOR A PARTICULAR PURPOSE. See the GNU
+# General Public License for more details.
+
+# You should have received a copy of the GNU General Public License
+# along with this program. If not, see <http://www.gnu.org/licenses/>.
+
+# Please report bugs or propose patches to gary@gnu.org.
+
+
+## ------ ##
+## Usage. ##
+## ------ ##
+
+# Evaluate this file near the top of your script to gain access to
+# the functions and variables defined here:
+#
+#   . `echo "$0" | ${SED-sed} 's|[^/]*$||'`/build-aux/funclib.sh
+#
+# If you need to override any of the default environment variable
+# settings, do that before evaluating this file.
+
+
+## -------------------- ##
+## Shell normalisation. ##
+## -------------------- ##
+
+# Some shells need a little help to be as Bourne compatible as possible.
+# Before doing anything else, make sure all that help has been provided!
+
+DUALCASE=1; export DUALCASE # for MKS sh
+if test -n "${ZSH_VERSION+set}" && (emulate sh) >/dev/null 2>&1; then :
+  emulate sh
+  NULLCMD=:
+  # Pre-4.2 versions of Zsh do word splitting on ${1+"$@"}, which
+  # is contrary to our usage.  Disable this feature.
+  alias -g '${1+"$@"}'='"$@"'
+  setopt NO_GLOB_SUBST
+else
+  case `(set -o) 2>/dev/null` in *posix*) set -o posix ;; esac
+fi
+
+# NLS nuisances: We save the old values in case they are required later.
+_G_user_locale=
+_G_safe_locale=
+for _G_var in LANG LANGUAGE LC_ALL LC_CTYPE LC_COLLATE LC_MESSAGES
+do
+  eval "if test set = \"\${$_G_var+set}\"; then
+          save_$_G_var=\$$_G_var
+          $_G_var=C
+	  export $_G_var
+	  _G_user_locale=\"$_G_var=\\\$save_\$_G_var; \$_G_user_locale\"
+	  _G_safe_locale=\"$_G_var=C; \$_G_safe_locale\"
+	fi"
+done
+
+# CDPATH.
+(unset CDPATH) >/dev/null 2>&1 && unset CDPATH
+
+# Make sure IFS has a sensible default
+sp=' '
+nl='
+'
+IFS="$sp	$nl"
+
+# There are apparently some retarded systems that use ';' as a PATH separator!
+if test "${PATH_SEPARATOR+set}" != set; then
+  PATH_SEPARATOR=:
+  (PATH='/bin;/bin'; FPATH=$PATH; sh -c :) >/dev/null 2>&1 && {
+    (PATH='/bin:/bin'; FPATH=$PATH; sh -c :) >/dev/null 2>&1 ||
+      PATH_SEPARATOR=';'
+  }
+fi
+
+
+
+## ------------------------- ##
+## Locate command utilities. ##
+## ------------------------- ##
+
+
+# func_executable_p FILE
+# ----------------------
+# Check that FILE is an executable regular file.
+func_executable_p ()
+{
+    test -f "$1" && test -x "$1"
+}
+
+
+# func_path_progs PROGS_LIST CHECK_FUNC [PATH]
+# --------------------------------------------
+# Search for either a program that responds to --version with output
+# containing "GNU", or else returned by CHECK_FUNC otherwise, by
+# trying all the directories in PATH with each of the elements of
+# PROGS_LIST.
+#
+# CHECK_FUNC should accept the path to a candidate program, and
+# set $func_check_prog_result if it truncates its output less than
+# $_G_path_prog_max characters.
+func_path_progs ()
+{
+    _G_progs_list=$1
+    _G_check_func=$2
+    _G_PATH=${3-"$PATH"}
+
+    _G_path_prog_max=0
+    _G_path_prog_found=false
+    _G_save_IFS=$IFS; IFS=${PATH_SEPARATOR-:}
+    for _G_dir in $_G_PATH; do
+      IFS=$_G_save_IFS
+      test -z "$_G_dir" && _G_dir=.
+      for _G_prog_name in $_G_progs_list; do
+        for _exeext in '' .EXE; do
+          _G_path_prog=$_G_dir/$_G_prog_name$_exeext
+          func_executable_p "$_G_path_prog" || continue
+          case `"$_G_path_prog" --version 2>&1` in
+            *GNU*) func_path_progs_result=$_G_path_prog _G_path_prog_found=: ;;
+            *)     $_G_check_func $_G_path_prog
+		   func_path_progs_result=$func_check_prog_result
+		   ;;
+          esac
+          $_G_path_prog_found && break 3
+        done
+      done
+    done
+    IFS=$_G_save_IFS
+    test -z "$func_path_progs_result" && {
+      echo "no acceptable sed could be found in \$PATH" >&2
+      exit 1
+    }
+}
+
+
+# We want to be able to use the functions in this file before configure
+# has figured out where the best binaries are kept, which means we have
+# to search for them ourselves - except when the results are already set
+# where we skip the searches.
+
+# Unless the user overrides by setting SED, search the path for either GNU
+# sed, or the sed that truncates its output the least.
+test -z "$SED" && {
+  _G_sed_script=s/aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa/bbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbb/
+  for _G_i in 1 2 3 4 5 6 7; do
+    _G_sed_script=$_G_sed_script$nl$_G_sed_script
+  done
+  echo "$_G_sed_script" 2>/dev/null | sed 99q >conftest.sed
+  _G_sed_script=
+
+  func_check_prog_sed ()
+  {
+    _G_path_prog=$1
+
+    _G_count=0
+    printf 0123456789 >conftest.in
+    while :
+    do
+      cat conftest.in conftest.in >conftest.tmp
+      mv conftest.tmp conftest.in
+      cp conftest.in conftest.nl
+      echo '' >> conftest.nl
+      "$_G_path_prog" -f conftest.sed <conftest.nl >conftest.out 2>/dev/null || break
+      diff conftest.out conftest.nl >/dev/null 2>&1 || break
+      _G_count=`expr $_G_count + 1`
+      if test "$_G_count" -gt "$_G_path_prog_max"; then
+        # Best one so far, save it but keep looking for a better one
+        func_check_prog_result=$_G_path_prog
+        _G_path_prog_max=$_G_count
+      fi
+      # 10*(2^10) chars as input seems more than enough
+      test 10 -lt "$_G_count" && break
+    done
+    rm -f conftest.in conftest.tmp conftest.nl conftest.out
+  }
+
+  func_path_progs "sed gsed" func_check_prog_sed $PATH:/usr/xpg4/bin
+  rm -f conftest.sed
+  SED=$func_path_progs_result
+}
+
+
+# Unless the user overrides by setting GREP, search the path for either GNU
+# grep, or the grep that truncates its output the least.
+test -z "$GREP" && {
+  func_check_prog_grep ()
+  {
+    _G_path_prog=$1
+
+    _G_count=0
+    _G_path_prog_max=0
+    printf 0123456789 >conftest.in
+    while :
+    do
+      cat conftest.in conftest.in >conftest.tmp
+      mv conftest.tmp conftest.in
+      cp conftest.in conftest.nl
+      echo 'GREP' >> conftest.nl
+      "$_G_path_prog" -e 'GREP$' -e '-(cannot match)-' <conftest.nl >conftest.out 2>/dev/null || break
+      diff conftest.out conftest.nl >/dev/null 2>&1 || break
+      _G_count=`expr $_G_count + 1`
+      if test "$_G_count" -gt "$_G_path_prog_max"; then
+        # Best one so far, save it but keep looking for a better one
+        func_check_prog_result=$_G_path_prog
+        _G_path_prog_max=$_G_count
+      fi
+      # 10*(2^10) chars as input seems more than enough
+      test 10 -lt "$_G_count" && break
+    done
+    rm -f conftest.in conftest.tmp conftest.nl conftest.out
+  }
+
+  func_path_progs "grep ggrep" func_check_prog_grep $PATH:/usr/xpg4/bin
+  GREP=$func_path_progs_result
+}
+
+
+## ------------------------------- ##
+## User overridable command paths. ##
+## ------------------------------- ##
+
+# All uppercase variable names are used for environment variables.  These
+# variables can be overridden by the user before calling a script that
+# uses them if a suitable command of that name is not already available
+# in the command search PATH.
+
+: ${CP="cp -f"}
+: ${ECHO="printf %s\n"}
+: ${EGREP="$GREP -E"}
+: ${FGREP="$GREP -F"}
+: ${LN_S="ln -s"}
+: ${MAKE="make"}
+: ${MKDIR="mkdir"}
+: ${MV="mv -f"}
+: ${RM="rm -f"}
+: ${SHELL="${CONFIG_SHELL-/bin/sh}"}
+
+
+## -------------------- ##
+## Useful sed snippets. ##
+## -------------------- ##
+
+sed_dirname='s|/[^/]*$||'
+sed_basename='s|^.*/||'
+
+# Sed substitution that helps us do robust quoting.  It backslashifies
+# metacharacters that are still active within double-quoted strings.
+sed_quote_subst='s|\([`"$\\]\)|\\\1|g'
+
+# Same as above, but do not quote variable references.
+sed_double_quote_subst='s/\(["`\\]\)/\\\1/g'
+
+# Sed substitution that turns a string into a regex matching for the
+# string literally.
+sed_make_literal_regex='s|[].[^$\\*\/]|\\&|g'
+
+# Sed substitution that converts a w32 file name or path
+# that contains forward slashes, into one that contains
+# (escaped) backslashes.  A very naive implementation.
+sed_naive_backslashify='s|\\\\*|\\|g;s|/|\\|g;s|\\|\\\\|g'
+
+# Re-'\' parameter expansions in output of sed_double_quote_subst that
+# were '\'-ed in input to the same.  If an odd number of '\' preceded a
+# '$' in input to sed_double_quote_subst, that '$' was protected from
+# expansion.  Since each input '\' is now two '\'s, look for any number
+# of runs of four '\'s followed by two '\'s and then a '$'.  '\' that '$'.
+_G_bs='\\'
+_G_bs2='\\\\'
+_G_bs4='\\\\\\\\'
+_G_dollar='\$'
+sed_double_backslash="\
+  s/$_G_bs4/&\\
+/g
+  s/^$_G_bs2$_G_dollar/$_G_bs&/
+  s/\\([^$_G_bs]\\)$_G_bs2$_G_dollar/\\1$_G_bs2$_G_bs$_G_dollar/g
+  s/\n//g"
+
+
+## ----------------- ##
+## Global variables. ##
+## ----------------- ##
+
+# Except for the global variables explicitly listed below, the following
+# functions in the '^func_' namespace, and the '^require_' namespace
+# variables initialised in the 'Resource management' section, sourcing
+# this file will not pollute your global namespace with anything
+# else. There's no portable way to scope variables in Bourne shell
+# though, so actually running these functions will sometimes place
+# results into a variable named after the function, and often use
+# temporary variables in the '^_G_' namespace. If you are careful to
+# avoid using those namespaces casually in your sourcing script, things
+# should continue to work as you expect. And, of course, you can freely
+# overwrite any of the functions or variables defined here before
+# calling anything to customize them.
+
+EXIT_SUCCESS=0
+EXIT_FAILURE=1
+EXIT_MISMATCH=63  # $? = 63 is used to indicate version mismatch to missing.
+EXIT_SKIP=77	  # $? = 77 is used to indicate a skipped test to automake.
+
+# Allow overriding, eg assuming that you follow the convention of
+# putting '$debug_cmd' at the start of all your functions, you can get
+# bash to show function call trace with:
+#
+#    debug_cmd='eval echo "${FUNCNAME[0]} $*" >&2' bash your-script-name
+debug_cmd=${debug_cmd-":"}
+exit_cmd=:
+
+# By convention, finish your script with:
+#
+#    exit $exit_status
+#
+# so that you can set exit_status to non-zero if you want to indicate
+# something went wrong during execution without actually bailing out at
+# the point of failure.
+exit_status=$EXIT_SUCCESS
+
+# Work around backward compatibility issue on IRIX 6.5. On IRIX 6.4+, sh
+# is ksh but when the shell is invoked as "sh" and the current value of
+# the _XPG environment variable is not equal to 1 (one), the special
+# positional parameter $0, within a function call, is the name of the
+# function.
+progpath=$0
+
+# The name of this program.
+progname=`$ECHO "$progpath" |$SED "$sed_basename"`
+
+# Make sure we have an absolute progpath for reexecution:
+case $progpath in
+  [\\/]*|[A-Za-z]:\\*) ;;
+  *[\\/]*)
+     progdir=`$ECHO "$progpath" |$SED "$sed_dirname"`
+     progdir=`cd "$progdir" && pwd`
+     progpath=$progdir/$progname
+     ;;
+  *)
+     _G_IFS=$IFS
+     IFS=${PATH_SEPARATOR-:}
+     for progdir in $PATH; do
+       IFS=$_G_IFS
+       test -x "$progdir/$progname" && break
+     done
+     IFS=$_G_IFS
+     test -n "$progdir" || progdir=`pwd`
+     progpath=$progdir/$progname
+     ;;
+esac
+
+
+## ----------------- ##
+## Standard options. ##
+## ----------------- ##
+
+# The following options affect the operation of the functions defined
+# below, and should be set appropriately depending on run-time para-
+# meters passed on the command line.
+
+opt_dry_run=false
+opt_quiet=false
+opt_verbose=false
+
+# Categories 'all' and 'none' are always available.  Append any others
+# you will pass as the first argument to func_warning from your own
+# code.
+warning_categories=
+
+# By default, display warnings according to 'opt_warning_types'.  Set
+# 'warning_func'  to ':' to elide all warnings, or func_fatal_error to
+# treat the next displayed warning as a fatal error.
+warning_func=func_warn_and_continue
+
+# Set to 'all' to display all warnings, 'none' to suppress all
+# warnings, or a space delimited list of some subset of
+# 'warning_categories' to display only the listed warnings.
+opt_warning_types=all
+
+
+## -------------------- ##
+## Resource management. ##
+## -------------------- ##
+
+# This section contains definitions for functions that each ensure a
+# particular resource (a file, or a non-empty configuration variable for
+# example) is available, and if appropriate to extract default values
+# from pertinent package files. Call them using their associated
+# 'require_*' variable to ensure that they are executed, at most, once.
+#
+# It's entirely deliberate that calling these functions can set
+# variables that don't obey the namespace limitations obeyed by the rest
+# of this file, in order that that they be as useful as possible to
+# callers.
+
+
+# require_term_colors
+# -------------------
+# Allow display of bold text on terminals that support it.
+require_term_colors=func_require_term_colors
+func_require_term_colors ()
+{
+    $debug_cmd
+
+    test -t 1 && {
+      # COLORTERM and USE_ANSI_COLORS environment variables take
+      # precedence, because most terminfo databases neglect to describe
+      # whether color sequences are supported.
+      test -n "${COLORTERM+set}" && : ${USE_ANSI_COLORS="1"}
+
+      if test 1 = "$USE_ANSI_COLORS"; then
+        # Standard ANSI escape sequences
+        tc_reset=''
+        tc_bold='';   tc_standout=''
+        tc_red='';   tc_green=''
+        tc_blue='';  tc_cyan=''
+      else
+        # Otherwise trust the terminfo database after all.
+        test -n "`tput sgr0 2>/dev/null`" && {
+          tc_reset=`tput sgr0`
+          test -n "`tput bold 2>/dev/null`" && tc_bold=`tput bold`
+          tc_standout=$tc_bold
+          test -n "`tput smso 2>/dev/null`" && tc_standout=`tput smso`
+          test -n "`tput setaf 1 2>/dev/null`" && tc_red=`tput setaf 1`
+          test -n "`tput setaf 2 2>/dev/null`" && tc_green=`tput setaf 2`
+          test -n "`tput setaf 4 2>/dev/null`" && tc_blue=`tput setaf 4`
+          test -n "`tput setaf 5 2>/dev/null`" && tc_cyan=`tput setaf 5`
+        }
+      fi
+    }
+
+    require_term_colors=:
+}
+
+
+## ----------------- ##
+## Function library. ##
+## ----------------- ##
+
+# This section contains a variety of useful functions to call in your
+# scripts. Take note of the portable wrappers for features provided by
+# some modern shells, which will fall back to slower equivalents on
+# less featureful shells.
+
+
+# func_append VAR VALUE
+# ---------------------
+# Append VALUE onto the existing contents of VAR.
+
+  # We should try to minimise forks, especially on Windows where they are
+  # unreasonably slow, so skip the feature probes when bash or zsh are
+  # being used:
+  if test set = "${BASH_VERSION+set}${ZSH_VERSION+set}"; then
+    : ${_G_HAVE_ARITH_OP="yes"}
+    : ${_G_HAVE_XSI_OPS="yes"}
+    # The += operator was introduced in bash 3.1
+    case $BASH_VERSION in
+      [12].* | 3.0 | 3.0*) ;;
+      *)
+        : ${_G_HAVE_PLUSEQ_OP="yes"}
+        ;;
+    esac
+  fi
+
+  # _G_HAVE_PLUSEQ_OP
+  # Can be empty, in which case the shell is probed, "yes" if += is
+  # useable or anything else if it does not work.
+  test -z "$_G_HAVE_PLUSEQ_OP" \
+    && (eval 'x=a; x+=" b"; test "a b" = "$x"') 2>/dev/null \
+    && _G_HAVE_PLUSEQ_OP=yes
+
+if test yes = "$_G_HAVE_PLUSEQ_OP"
+then
+  # This is an XSI compatible shell, allowing a faster implementation...
+  eval 'func_append ()
+  {
+    $debug_cmd
+
+    eval "$1+=\$2"
+  }'
+else
+  # ...otherwise fall back to using expr, which is often a shell builtin.
+  func_append ()
+  {
+    $debug_cmd
+
+    eval "$1=\$$1\$2"
+  }
+fi
+
+
+# func_append_quoted VAR VALUE
+# ----------------------------
+# Quote VALUE and append to the end of shell variable VAR, separated
+# by a space.
+if test yes = "$_G_HAVE_PLUSEQ_OP"; then
+  eval 'func_append_quoted ()
+  {
+    $debug_cmd
+
+    func_quote_for_eval "$2"
+    eval "$1+=\\ \$func_quote_for_eval_result"
+  }'
+else
+  func_append_quoted ()
+  {
+    $debug_cmd
+
+    func_quote_for_eval "$2"
+    eval "$1=\$$1\\ \$func_quote_for_eval_result"
+  }
+fi
+
+
+# func_append_uniq VAR VALUE
+# --------------------------
+# Append unique VALUE onto the existing contents of VAR, assuming
+# entries are delimited by the first character of VALUE.  For example:
+#
+#   func_append_uniq options " --another-option option-argument"
+#
+# will only append to $options if " --another-option option-argument "
+# is not already present somewhere in $options already (note spaces at
+# each end implied by leading space in second argument).
+func_append_uniq ()
+{
+    $debug_cmd
+
+    eval _G_current_value='`$ECHO $'$1'`'
+    _G_delim=`expr "$2" : '\(.\)'`
+
+    case $_G_delim$_G_current_value$_G_delim in
+      *"$2$_G_delim"*) ;;
+      *) func_append "$@" ;;
+    esac
+}
+
+
+# func_arith TERM...
+# ------------------
+# Set func_arith_result to the result of evaluating TERMs.
+  test -z "$_G_HAVE_ARITH_OP" \
+    && (eval 'test 2 = $(( 1 + 1 ))') 2>/dev/null \
+    && _G_HAVE_ARITH_OP=yes
+
+if test yes = "$_G_HAVE_ARITH_OP"; then
+  eval 'func_arith ()
+  {
+    $debug_cmd
+
+    func_arith_result=$(( $* ))
+  }'
+else
+  func_arith ()
+  {
+    $debug_cmd
+
+    func_arith_result=`expr "$@"`
+  }
+fi
+
+
+# func_basename FILE
+# ------------------
+# Set func_basename_result to FILE with everything up to and including
+# the last / stripped.
+if test yes = "$_G_HAVE_XSI_OPS"; then
+  # If this shell supports suffix pattern removal, then use it to avoid
+  # forking. Hide the definitions single quotes in case the shell chokes
+  # on unsupported syntax...
+  _b='func_basename_result=${1##*/}'
+  _d='case $1 in
+        */*) func_dirname_result=${1%/*}$2 ;;
+        *  ) func_dirname_result=$3        ;;
+      esac'
+
+else
+  # ...otherwise fall back to using sed.
+  _b='func_basename_result=`$ECHO "$1" |$SED "$sed_basename"`'
+  _d='func_dirname_result=`$ECHO "$1"  |$SED "$sed_dirname"`
+      if test "X$func_dirname_result" = "X$1"; then
+        func_dirname_result=$3
+      else
+        func_append func_dirname_result "$2"
+      fi'
+fi
+
+eval 'func_basename ()
+{
+    $debug_cmd
+
+    '"$_b"'
+}'
+
+
+# func_dirname FILE APPEND NONDIR_REPLACEMENT
+# -------------------------------------------
+# Compute the dirname of FILE.  If nonempty, add APPEND to the result,
+# otherwise set result to NONDIR_REPLACEMENT.
+eval 'func_dirname ()
+{
+    $debug_cmd
+
+    '"$_d"'
+}'
+
+
+# func_dirname_and_basename FILE APPEND NONDIR_REPLACEMENT
+# --------------------------------------------------------
+# Perform func_basename and func_dirname in a single function
+# call:
+#   dirname:  Compute the dirname of FILE.  If nonempty,
+#             add APPEND to the result, otherwise set result
+#             to NONDIR_REPLACEMENT.
+#             value returned in "$func_dirname_result"
+#   basename: Compute filename of FILE.
+#             value retuned in "$func_basename_result"
+# For efficiency, we do not delegate to the functions above but instead
+# duplicate the functionality here.
+eval 'func_dirname_and_basename ()
+{
+    $debug_cmd
+
+    '"$_b"'
+    '"$_d"'
+}'
+
+
+# func_echo ARG...
+# ----------------
+# Echo program name prefixed message.
+func_echo ()
+{
+    $debug_cmd
+
+    _G_message=$*
+
+    func_echo_IFS=$IFS
+    IFS=$nl
+    for _G_line in $_G_message; do
+      IFS=$func_echo_IFS
+      $ECHO "$progname: $_G_line"
+    done
+    IFS=$func_echo_IFS
+}
+
+
+# func_echo_all ARG...
+# --------------------
+# Invoke $ECHO with all args, space-separated.
+func_echo_all ()
+{
+    $ECHO "$*"
+}
+
+
+# func_echo_infix_1 INFIX ARG...
+# ------------------------------
+# Echo program name, followed by INFIX on the first line, with any
+# additional lines not showing INFIX.
+func_echo_infix_1 ()
+{
+    $debug_cmd
+
+    $require_term_colors
+
+    _G_infix=$1; shift
+    _G_indent=$_G_infix
+    _G_prefix="$progname: $_G_infix: "
+    _G_message=$*
+
+    # Strip color escape sequences before counting printable length
+    for _G_tc in "$tc_reset" "$tc_bold" "$tc_standout" "$tc_red" "$tc_green" "$tc_blue" "$tc_cyan"
+    do
+      test -n "$_G_tc" && {
+        _G_esc_tc=`$ECHO "$_G_tc" | $SED "$sed_make_literal_regex"`
+        _G_indent=`$ECHO "$_G_indent" | $SED "s|$_G_esc_tc||g"`
+      }
+    done
+    _G_indent="$progname: "`echo "$_G_indent" | $SED 's|.| |g'`"  " ## exclude from sc_prohibit_nested_quotes
+
+    func_echo_infix_1_IFS=$IFS
+    IFS=$nl
+    for _G_line in $_G_message; do
+      IFS=$func_echo_infix_1_IFS
+      $ECHO "$_G_prefix$tc_bold$_G_line$tc_reset" >&2
+      _G_prefix=$_G_indent
+    done
+    IFS=$func_echo_infix_1_IFS
+}
+
+
+# func_error ARG...
+# -----------------
+# Echo program name prefixed message to standard error.
+func_error ()
+{
+    $debug_cmd
+
+    $require_term_colors
+
+    func_echo_infix_1 "  $tc_standout${tc_red}error$tc_reset" "$*" >&2
+}
+
+
+# func_fatal_error ARG...
+# -----------------------
+# Echo program name prefixed message to standard error, and exit.
+func_fatal_error ()
+{
+    $debug_cmd
+
+    func_error "$*"
+    exit $EXIT_FAILURE
+}
+
+
+# func_grep EXPRESSION FILENAME
+# -----------------------------
+# Check whether EXPRESSION matches any line of FILENAME, without output.
+func_grep ()
+{
+    $debug_cmd
+
+    $GREP "$1" "$2" >/dev/null 2>&1
+}
+
+
+# func_len STRING
+# ---------------
+# Set func_len_result to the length of STRING. STRING may not
+# start with a hyphen.
+  test -z "$_G_HAVE_XSI_OPS" \
+    && (eval 'x=a/b/c;
+      test 5aa/bb/cc = "${#x}${x%%/*}${x%/*}${x#*/}${x##*/}"') 2>/dev/null \
+    && _G_HAVE_XSI_OPS=yes
+
+if test yes = "$_G_HAVE_XSI_OPS"; then
+  eval 'func_len ()
+  {
+    $debug_cmd
+
+    func_len_result=${#1}
+  }'
+else
+  func_len ()
+  {
+    $debug_cmd
+
+    func_len_result=`expr "$1" : ".*" 2>/dev/null || echo $max_cmd_len`
+  }
+fi
+
+
+# func_mkdir_p DIRECTORY-PATH
+# ---------------------------
+# Make sure the entire path to DIRECTORY-PATH is available.
+func_mkdir_p ()
+{
+    $debug_cmd
+
+    _G_directory_path=$1
+    _G_dir_list=
+
+    if test -n "$_G_directory_path" && test : != "$opt_dry_run"; then
+
+      # Protect directory names starting with '-'
+      case $_G_directory_path in
+        -*) _G_directory_path=./$_G_directory_path ;;
+      esac
+
+      # While some portion of DIR does not yet exist...
+      while test ! -d "$_G_directory_path"; do
+        # ...make a list in topmost first order.  Use a colon delimited
+	# list incase some portion of path contains whitespace.
+        _G_dir_list=$_G_directory_path:$_G_dir_list
+
+        # If the last portion added has no slash in it, the list is done
+        case $_G_directory_path in */*) ;; *) break ;; esac
+
+        # ...otherwise throw away the child directory and loop
+        _G_directory_path=`$ECHO "$_G_directory_path" | $SED -e "$sed_dirname"`
+      done
+      _G_dir_list=`$ECHO "$_G_dir_list" | $SED 's|:*$||'`
+
+      func_mkdir_p_IFS=$IFS; IFS=:
+      for _G_dir in $_G_dir_list; do
+	IFS=$func_mkdir_p_IFS
+        # mkdir can fail with a 'File exist' error if two processes
+        # try to create one of the directories concurrently.  Don't
+        # stop in that case!
+        $MKDIR "$_G_dir" 2>/dev/null || :
+      done
+      IFS=$func_mkdir_p_IFS
+
+      # Bail out if we (or some other process) failed to create a directory.
+      test -d "$_G_directory_path" || \
+        func_fatal_error "Failed to create '$1'"
+    fi
+}
+
+
+# func_mktempdir [BASENAME]
+# -------------------------
+# Make a temporary directory that won't clash with other running
+# libtool processes, and avoids race conditions if possible.  If
+# given, BASENAME is the basename for that directory.
+func_mktempdir ()
+{
+    $debug_cmd
+
+    _G_template=${TMPDIR-/tmp}/${1-$progname}
+
+    if test : = "$opt_dry_run"; then
+      # Return a directory name, but don't create it in dry-run mode
+      _G_tmpdir=$_G_template-$$
+    else
+
+      # If mktemp works, use that first and foremost
+      _G_tmpdir=`mktemp -d "$_G_template-XXXXXXXX" 2>/dev/null`
+
+      if test ! -d "$_G_tmpdir"; then
+        # Failing that, at least try and use $RANDOM to avoid a race
+        _G_tmpdir=$_G_template-${RANDOM-0}$$
+
+        func_mktempdir_umask=`umask`
+        umask 0077
+        $MKDIR "$_G_tmpdir"
+        umask $func_mktempdir_umask
+      fi
+
+      # If we're not in dry-run mode, bomb out on failure
+      test -d "$_G_tmpdir" || \
+        func_fatal_error "cannot create temporary directory '$_G_tmpdir'"
+    fi
+
+    $ECHO "$_G_tmpdir"
+}
+
+
+# func_normal_abspath PATH
+# ------------------------
+# Remove doubled-up and trailing slashes, "." path components,
+# and cancel out any ".." path components in PATH after making
+# it an absolute path.
+func_normal_abspath ()
+{
+    $debug_cmd
+
+    # These SED scripts presuppose an absolute path with a trailing slash.
+    _G_pathcar='s|^/\([^/]*\).*$|\1|'
+    _G_pathcdr='s|^/[^/]*||'
+    _G_removedotparts=':dotsl
+		s|/\./|/|g
+		t dotsl
+		s|/\.$|/|'
+    _G_collapseslashes='s|/\{1,\}|/|g'
+    _G_finalslash='s|/*$|/|'
+
+    # Start from root dir and reassemble the path.
+    func_normal_abspath_result=
+    func_normal_abspath_tpath=$1
+    func_normal_abspath_altnamespace=
+    case $func_normal_abspath_tpath in
+      "")
+        # Empty path, that just means $cwd.
+        func_stripname '' '/' "`pwd`"
+        func_normal_abspath_result=$func_stripname_result
+        return
+        ;;
+      # The next three entries are used to spot a run of precisely
+      # two leading slashes without using negated character classes;
+      # we take advantage of case's first-match behaviour.
+      ///*)
+        # Unusual form of absolute path, do nothing.
+        ;;
+      //*)
+        # Not necessarily an ordinary path; POSIX reserves leading '//'
+        # and for example Cygwin uses it to access remote file shares
+        # over CIFS/SMB, so we conserve a leading double slash if found.
+        func_normal_abspath_altnamespace=/
+        ;;
+      /*)
+        # Absolute path, do nothing.
+        ;;
+      *)
+        # Relative path, prepend $cwd.
+        func_normal_abspath_tpath=`pwd`/$func_normal_abspath_tpath
+        ;;
+    esac
+
+    # Cancel out all the simple stuff to save iterations.  We also want
+    # the path to end with a slash for ease of parsing, so make sure
+    # there is one (and only one) here.
+    func_normal_abspath_tpath=`$ECHO "$func_normal_abspath_tpath" | $SED \
+          -e "$_G_removedotparts" -e "$_G_collapseslashes" -e "$_G_finalslash"`
+    while :; do
+      # Processed it all yet?
+      if test / = "$func_normal_abspath_tpath"; then
+        # If we ascended to the root using ".." the result may be empty now.
+        if test -z "$func_normal_abspath_result"; then
+          func_normal_abspath_result=/
+        fi
+        break
+      fi
+      func_normal_abspath_tcomponent=`$ECHO "$func_normal_abspath_tpath" | $SED \
+          -e "$_G_pathcar"`
+      func_normal_abspath_tpath=`$ECHO "$func_normal_abspath_tpath" | $SED \
+          -e "$_G_pathcdr"`
+      # Figure out what to do with it
+      case $func_normal_abspath_tcomponent in
+        "")
+          # Trailing empty path component, ignore it.
+          ;;
+        ..)
+          # Parent dir; strip last assembled component from result.
+          func_dirname "$func_normal_abspath_result"
+          func_normal_abspath_result=$func_dirname_result
+          ;;
+        *)
+          # Actual path component, append it.
+          func_append func_normal_abspath_result "/$func_normal_abspath_tcomponent"
+          ;;
+      esac
+    done
+    # Restore leading double-slash if one was found on entry.
+    func_normal_abspath_result=$func_normal_abspath_altnamespace$func_normal_abspath_result
+}
+
+
+# func_notquiet ARG...
+# --------------------
+# Echo program name prefixed message only when not in quiet mode.
+func_notquiet ()
+{
+    $debug_cmd
+
+    $opt_quiet || func_echo ${1+"$@"}
+
+    # A bug in bash halts the script if the last line of a function
+    # fails when set -e is in force, so we need another command to
+    # work around that:
+    :
+}
+
+
+# func_relative_path SRCDIR DSTDIR
+# --------------------------------
+# Set func_relative_path_result to the relative path from SRCDIR to DSTDIR.
+func_relative_path ()
+{
+    $debug_cmd
+
+    func_relative_path_result=
+    func_normal_abspath "$1"
+    func_relative_path_tlibdir=$func_normal_abspath_result
+    func_normal_abspath "$2"
+    func_relative_path_tbindir=$func_normal_abspath_result
+
+    # Ascend the tree starting from libdir
+    while :; do
+      # check if we have found a prefix of bindir
+      case $func_relative_path_tbindir in
+        $func_relative_path_tlibdir)
+          # found an exact match
+          func_relative_path_tcancelled=
+          break
+          ;;
+        $func_relative_path_tlibdir*)
+          # found a matching prefix
+          func_stripname "$func_relative_path_tlibdir" '' "$func_relative_path_tbindir"
+          func_relative_path_tcancelled=$func_stripname_result
+          if test -z "$func_relative_path_result"; then
+            func_relative_path_result=.
+          fi
+          break
+          ;;
+        *)
+          func_dirname $func_relative_path_tlibdir
+          func_relative_path_tlibdir=$func_dirname_result
+          if test -z "$func_relative_path_tlibdir"; then
+            # Have to descend all the way to the root!
+            func_relative_path_result=../$func_relative_path_result
+            func_relative_path_tcancelled=$func_relative_path_tbindir
+            break
+          fi
+          func_relative_path_result=../$func_relative_path_result
+          ;;
+      esac
+    done
+
+    # Now calculate path; take care to avoid doubling-up slashes.
+    func_stripname '' '/' "$func_relative_path_result"
+    func_relative_path_result=$func_stripname_result
+    func_stripname '/' '/' "$func_relative_path_tcancelled"
+    if test -n "$func_stripname_result"; then
+      func_append func_relative_path_result "/$func_stripname_result"
+    fi
+
+    # Normalisation. If bindir is libdir, return '.' else relative path.
+    if test -n "$func_relative_path_result"; then
+      func_stripname './' '' "$func_relative_path_result"
+      func_relative_path_result=$func_stripname_result
+    fi
+
+    test -n "$func_relative_path_result" || func_relative_path_result=.
+
+    :
+}
+
+
+# func_quote_for_eval ARG...
+# --------------------------
+# Aesthetically quote ARGs to be evaled later.
+# This function returns two values:
+#   i) func_quote_for_eval_result
+#      double-quoted, suitable for a subsequent eval
+#  ii) func_quote_for_eval_unquoted_result
+#      has all characters that are still active within double
+#      quotes backslashified.
+func_quote_for_eval ()
+{
+    $debug_cmd
+
+    func_quote_for_eval_unquoted_result=
+    func_quote_for_eval_result=
+    while test 0 -lt $#; do
+      case $1 in
+        *[\\\`\"\$]*)
+	  _G_unquoted_arg=`printf '%s\n' "$1" |$SED "$sed_quote_subst"` ;;
+        *)
+          _G_unquoted_arg=$1 ;;
+      esac
+      if test -n "$func_quote_for_eval_unquoted_result"; then
+	func_append func_quote_for_eval_unquoted_result " $_G_unquoted_arg"
+      else
+        func_append func_quote_for_eval_unquoted_result "$_G_unquoted_arg"
+      fi
+
+      case $_G_unquoted_arg in
+        # Double-quote args containing shell metacharacters to delay
+        # word splitting, command substitution and variable expansion
+        # for a subsequent eval.
+        # Many Bourne shells cannot handle close brackets correctly
+        # in scan sets, so we specify it separately.
+        *[\[\~\#\^\&\*\(\)\{\}\|\;\<\>\?\'\ \	]*|*]*|"")
+          _G_quoted_arg=\"$_G_unquoted_arg\"
+          ;;
+        *)
+          _G_quoted_arg=$_G_unquoted_arg
+	  ;;
+      esac
+
+      if test -n "$func_quote_for_eval_result"; then
+	func_append func_quote_for_eval_result " $_G_quoted_arg"
+      else
+        func_append func_quote_for_eval_result "$_G_quoted_arg"
+      fi
+      shift
+    done
+}
+
+
+# func_quote_for_expand ARG
+# -------------------------
+# Aesthetically quote ARG to be evaled later; same as above,
+# but do not quote variable references.
+func_quote_for_expand ()
+{
+    $debug_cmd
+
+    case $1 in
+      *[\\\`\"]*)
+	_G_arg=`$ECHO "$1" | $SED \
+	    -e "$sed_double_quote_subst" -e "$sed_double_backslash"` ;;
+      *)
+        _G_arg=$1 ;;
+    esac
+
+    case $_G_arg in
+      # Double-quote args containing shell metacharacters to delay
+      # word splitting and command substitution for a subsequent eval.
+      # Many Bourne shells cannot handle close brackets correctly
+      # in scan sets, so we specify it separately.
+      *[\[\~\#\^\&\*\(\)\{\}\|\;\<\>\?\'\ \	]*|*]*|"")
+        _G_arg=\"$_G_arg\"
+        ;;
+    esac
+
+    func_quote_for_expand_result=$_G_arg
+}
+
+
+# func_stripname PREFIX SUFFIX NAME
+# ---------------------------------
+# strip PREFIX and SUFFIX from NAME, and store in func_stripname_result.
+# PREFIX and SUFFIX must not contain globbing or regex special
+# characters, hashes, percent signs, but SUFFIX may contain a leading
+# dot (in which case that matches only a dot).
+if test yes = "$_G_HAVE_XSI_OPS"; then
+  eval 'func_stripname ()
+  {
+    $debug_cmd
+
+    # pdksh 5.2.14 does not do ${X%$Y} correctly if both X and Y are
+    # positional parameters, so assign one to ordinary variable first.
+    func_stripname_result=$3
+    func_stripname_result=${func_stripname_result#"$1"}
+    func_stripname_result=${func_stripname_result%"$2"}
+  }'
+else
+  func_stripname ()
+  {
+    $debug_cmd
+
+    case $2 in
+      .*) func_stripname_result=`$ECHO "$3" | $SED -e "s%^$1%%" -e "s%\\\\$2\$%%"`;;
+      *)  func_stripname_result=`$ECHO "$3" | $SED -e "s%^$1%%" -e "s%$2\$%%"`;;
+    esac
+  }
+fi
+
+
+# func_show_eval CMD [FAIL_EXP]
+# -----------------------------
+# Unless opt_quiet is true, then output CMD.  Then, if opt_dryrun is
+# not true, evaluate CMD.  If the evaluation of CMD fails, and FAIL_EXP
+# is given, then evaluate it.
+func_show_eval ()
+{
+    $debug_cmd
+
+    _G_cmd=$1
+    _G_fail_exp=${2-':'}
+
+    func_quote_for_expand "$_G_cmd"
+    eval "func_notquiet $func_quote_for_expand_result"
+
+    $opt_dry_run || {
+      eval "$_G_cmd"
+      _G_status=$?
+      if test 0 -ne "$_G_status"; then
+	eval "(exit $_G_status); $_G_fail_exp"
+      fi
+    }
+}
+
+
+# func_show_eval_locale CMD [FAIL_EXP]
+# ------------------------------------
+# Unless opt_quiet is true, then output CMD.  Then, if opt_dryrun is
+# not true, evaluate CMD.  If the evaluation of CMD fails, and FAIL_EXP
+# is given, then evaluate it.  Use the saved locale for evaluation.
+func_show_eval_locale ()
+{
+    $debug_cmd
+
+    _G_cmd=$1
+    _G_fail_exp=${2-':'}
+
+    $opt_quiet || {
+      func_quote_for_expand "$_G_cmd"
+      eval "func_echo $func_quote_for_expand_result"
+    }
+
+    $opt_dry_run || {
+      eval "$_G_user_locale
+	    $_G_cmd"
+      _G_status=$?
+      eval "$_G_safe_locale"
+      if test 0 -ne "$_G_status"; then
+	eval "(exit $_G_status); $_G_fail_exp"
+      fi
+    }
+}
+
+
+# func_tr_sh
+# ----------
+# Turn $1 into a string suitable for a shell variable name.
+# Result is stored in $func_tr_sh_result.  All characters
+# not in the set a-zA-Z0-9_ are replaced with '_'. Further,
+# if $1 begins with a digit, a '_' is prepended as well.
+func_tr_sh ()
+{
+    $debug_cmd
+
+    case $1 in
+    [0-9]* | *[!a-zA-Z0-9_]*)
+      func_tr_sh_result=`$ECHO "$1" | $SED -e 's/^\([0-9]\)/_\1/' -e 's/[^a-zA-Z0-9_]/_/g'`
+      ;;
+    * )
+      func_tr_sh_result=$1
+      ;;
+    esac
+}
+
+
+# func_verbose ARG...
+# -------------------
+# Echo program name prefixed message in verbose mode only.
+func_verbose ()
+{
+    $debug_cmd
+
+    $opt_verbose && func_echo "$*"
+
+    :
+}
+
+
+# func_warn_and_continue ARG...
+# -----------------------------
+# Echo program name prefixed warning message to standard error.
+func_warn_and_continue ()
+{
+    $debug_cmd
+
+    $require_term_colors
+
+    func_echo_infix_1 "${tc_red}warning$tc_reset" "$*" >&2
+}
+
+
+# func_warning CATEGORY ARG...
+# ----------------------------
+# Echo program name prefixed warning message to standard error. Warning
+# messages can be filtered according to CATEGORY, where this function
+# elides messages where CATEGORY is not listed in the global variable
+# 'opt_warning_types'.
+func_warning ()
+{
+    $debug_cmd
+
+    # CATEGORY must be in the warning_categories list!
+    case " $warning_categories " in
+      *" $1 "*) ;;
+      *) func_internal_error "invalid warning category '$1'" ;;
+    esac
+
+    _G_category=$1
+    shift
+
+    case " $opt_warning_types " in
+      *" $_G_category "*) $warning_func ${1+"$@"} ;;
+    esac
+}
+
+
+# func_sort_ver VER1 VER2
+# -----------------------
+# 'sort -V' is not generally available.
+# Note this deviates from the version comparison in automake
+# in that it treats 1.5 < 1.5.0, and treats 1.4.4a < 1.4-p3a
+# but this should suffice as we won't be specifying old
+# version formats or redundant trailing .0 in bootstrap.conf.
+# If we did want full compatibility then we should probably
+# use m4_version_compare from autoconf.
+func_sort_ver ()
+{
+    $debug_cmd
+
+    printf '%s\n%s\n' "$1" "$2" \
+      | sort -t. -k 1,1n -k 2,2n -k 3,3n -k 4,4n -k 5,5n -k 6,6n -k 7,7n -k 8,8n -k 9,9n
+}
+
+# func_lt_ver PREV CURR
+# ---------------------
+# Return true if PREV and CURR are in the correct order according to
+# func_sort_ver, otherwise false.  Use it like this:
+#
+#  func_lt_ver "$prev_ver" "$proposed_ver" || func_fatal_error "..."
+func_lt_ver ()
+{
+    $debug_cmd
+
+    test "x$1" = x`func_sort_ver "$1" "$2" | $SED 1q`
+}
+
+
+# Local variables:
+# mode: shell-script
+# sh-indentation: 2
+# eval: (add-hook 'before-save-hook 'time-stamp)
+# time-stamp-pattern: "10/scriptversion=%:y-%02m-%02d.%02H; # UTC"
+# time-stamp-time-zone: "UTC"
+# End:
+#! /bin/sh
+
+# Set a version string for this script.
+scriptversion=2014-01-07.03; # UTC
+
+# A portable, pluggable option parser for Bourne shell.
+# Written by Gary V. Vaughan, 2010
+
+# Copyright (C) 2010-2015 Free Software Foundation, Inc.
+# This is free software; see the source for copying conditions.  There is NO
+# warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
+
+# This program is free software: you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation, either version 3 of the License, or
+# (at your option) any later version.
+
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+
+# You should have received a copy of the GNU General Public License
+# along with this program.  If not, see <http://www.gnu.org/licenses/>.
+
+# Please report bugs or propose patches to gary@gnu.org.
+
+
+## ------ ##
+## Usage. ##
+## ------ ##
+
+# This file is a library for parsing options in your shell scripts along
+# with assorted other useful supporting features that you can make use
+# of too.
+#
+# For the simplest scripts you might need only:
+#
+#   #!/bin/sh
+#   . relative/path/to/funclib.sh
+#   . relative/path/to/options-parser
+#   scriptversion=1.0
+#   func_options ${1+"$@"}
+#   eval set dummy "$func_options_result"; shift
+#   ...rest of your script...
+#
+# In order for the '--version' option to work, you will need to have a
+# suitably formatted comment like the one at the top of this file
+# starting with '# Written by ' and ending with '# warranty; '.
+#
+# For '-h' and '--help' to work, you will also need a one line
+# description of your script's purpose in a comment directly above the
+# '# Written by ' line, like the one at the top of this file.
+#
+# The default options also support '--debug', which will turn on shell
+# execution tracing (see the comment above debug_cmd below for another
+# use), and '--verbose' and the func_verbose function to allow your script
+# to display verbose messages only when your user has specified
+# '--verbose'.
+#
+# After sourcing this file, you can plug processing for additional
+# options by amending the variables from the 'Configuration' section
+# below, and following the instructions in the 'Option parsing'
+# section further down.
+
+## -------------- ##
+## Configuration. ##
+## -------------- ##
+
+# You should override these variables in your script after sourcing this
+# file so that they reflect the customisations you have added to the
+# option parser.
+
+# The usage line for option parsing errors and the start of '-h' and
+# '--help' output messages. You can embed shell variables for delayed
+# expansion at the time the message is displayed, but you will need to
+# quote other shell meta-characters carefully to prevent them being
+# expanded when the contents are evaled.
+usage='$progpath [OPTION]...'
+
+# Short help message in response to '-h' and '--help'.  Add to this or
+# override it after sourcing this library to reflect the full set of
+# options your script accepts.
+usage_message="\
+       --debug        enable verbose shell tracing
+   -W, --warnings=CATEGORY
+                      report the warnings falling in CATEGORY [all]
+   -v, --verbose      verbosely report processing
+       --version      print version information and exit
+   -h, --help         print short or long help message and exit
+"
+
+# Additional text appended to 'usage_message' in response to '--help'.
+long_help_message="
+Warning categories include:
+       'all'          show all warnings
+       'none'         turn off all the warnings
+       'error'        warnings are treated as fatal errors"
+
+# Help message printed before fatal option parsing errors.
+fatal_help="Try '\$progname --help' for more information."
+
+
+
+## ------------------------- ##
+## Hook function management. ##
+## ------------------------- ##
+
+# This section contains functions for adding, removing, and running hooks
+# to the main code.  A hook is just a named list of of function, that can
+# be run in order later on.
+
+# func_hookable FUNC_NAME
+# -----------------------
+# Declare that FUNC_NAME will run hooks added with
+# 'func_add_hook FUNC_NAME ...'.
+func_hookable ()
+{
+    $debug_cmd
+
+    func_append hookable_fns " $1"
+}
+
+
+# func_add_hook FUNC_NAME HOOK_FUNC
+# ---------------------------------
+# Request that FUNC_NAME call HOOK_FUNC before it returns.  FUNC_NAME must
+# first have been declared "hookable" by a call to 'func_hookable'.
+func_add_hook ()
+{
+    $debug_cmd
+
+    case " $hookable_fns " in
+      *" $1 "*) ;;
+      *) func_fatal_error "'$1' does not accept hook functions." ;;
+    esac
+
+    eval func_append ${1}_hooks '" $2"'
+}
+
+
+# func_remove_hook FUNC_NAME HOOK_FUNC
+# ------------------------------------
+# Remove HOOK_FUNC from the list of functions called by FUNC_NAME.
+func_remove_hook ()
+{
+    $debug_cmd
+
+    eval ${1}_hooks='`$ECHO "\$'$1'_hooks" |$SED "s| '$2'||"`'
+}
+
+
+# func_run_hooks FUNC_NAME [ARG]...
+# ---------------------------------
+# Run all hook functions registered to FUNC_NAME.
+# It is assumed that the list of hook functions contains nothing more
+# than a whitespace-delimited list of legal shell function names, and
+# no effort is wasted trying to catch shell meta-characters or preserve
+# whitespace.
+func_run_hooks ()
+{
+    $debug_cmd
+
+    case " $hookable_fns " in
+      *" $1 "*) ;;
+      *) func_fatal_error "'$1' does not support hook funcions.n" ;;
+    esac
+
+    eval _G_hook_fns=\$$1_hooks; shift
+
+    for _G_hook in $_G_hook_fns; do
+      eval $_G_hook '"$@"'
+
+      # store returned options list back into positional
+      # parameters for next 'cmd' execution.
+      eval _G_hook_result=\$${_G_hook}_result
+      eval set dummy "$_G_hook_result"; shift
+    done
+
+    func_quote_for_eval ${1+"$@"}
+    func_run_hooks_result=$func_quote_for_eval_result
+}
+
+
+
+## --------------- ##
+## Option parsing. ##
+## --------------- ##
+
+# In order to add your own option parsing hooks, you must accept the
+# full positional parameter list in your hook function, remove any
+# options that you action, and then pass back the remaining unprocessed
+# options in '<hooked_function_name>_result', escaped suitably for
+# 'eval'.  Like this:
+#
+#    my_options_prep ()
+#    {
+#        $debug_cmd
+#
+#        # Extend the existing usage message.
+#        usage_message=$usage_message'
+#      -s, --silent       don'\''t print informational messages
+#    '
+#
+#        func_quote_for_eval ${1+"$@"}
+#        my_options_prep_result=$func_quote_for_eval_result
+#    }
+#    func_add_hook func_options_prep my_options_prep
+#
+#
+#    my_silent_option ()
+#    {
+#        $debug_cmd
+#
+#        # Note that for efficiency, we parse as many options as we can
+#        # recognise in a loop before passing the remainder back to the
+#        # caller on the first unrecognised argument we encounter.
+#        while test $# -gt 0; do
+#          opt=$1; shift
+#          case $opt in
+#            --silent|-s) opt_silent=: ;;
+#            # Separate non-argument short options:
+#            -s*)         func_split_short_opt "$_G_opt"
+#                         set dummy "$func_split_short_opt_name" \
+#                             "-$func_split_short_opt_arg" ${1+"$@"}
+#                         shift
+#                         ;;
+#            *)            set dummy "$_G_opt" "$*"; shift; break ;;
+#          esac
+#        done
+#
+#        func_quote_for_eval ${1+"$@"}
+#        my_silent_option_result=$func_quote_for_eval_result
+#    }
+#    func_add_hook func_parse_options my_silent_option
+#
+#
+#    my_option_validation ()
+#    {
+#        $debug_cmd
+#
+#        $opt_silent && $opt_verbose && func_fatal_help "\
+#    '--silent' and '--verbose' options are mutually exclusive."
+#
+#        func_quote_for_eval ${1+"$@"}
+#        my_option_validation_result=$func_quote_for_eval_result
+#    }
+#    func_add_hook func_validate_options my_option_validation
+#
+# You'll alse need to manually amend $usage_message to reflect the extra
+# options you parse.  It's preferable to append if you can, so that
+# multiple option parsing hooks can be added safely.
+
+
+# func_options [ARG]...
+# ---------------------
+# All the functions called inside func_options are hookable. See the
+# individual implementations for details.
+func_hookable func_options
+func_options ()
+{
+    $debug_cmd
+
+    func_options_prep ${1+"$@"}
+    eval func_parse_options \
+        ${func_options_prep_result+"$func_options_prep_result"}
+    eval func_validate_options \
+        ${func_parse_options_result+"$func_parse_options_result"}
+
+    eval func_run_hooks func_options \
+        ${func_validate_options_result+"$func_validate_options_result"}
+
+    # save modified positional parameters for caller
+    func_options_result=$func_run_hooks_result
+}
+
+
+# func_options_prep [ARG]...
+# --------------------------
+# All initialisations required before starting the option parse loop.
+# Note that when calling hook functions, we pass through the list of
+# positional parameters.  If a hook function modifies that list, and
+# needs to propogate that back to rest of this script, then the complete
+# modified list must be put in 'func_run_hooks_result' before
+# returning.
+func_hookable func_options_prep
+func_options_prep ()
+{
+    $debug_cmd
+
+    # Option defaults:
+    opt_verbose=false
+    opt_warning_types=
+
+    func_run_hooks func_options_prep ${1+"$@"}
+
+    # save modified positional parameters for caller
+    func_options_prep_result=$func_run_hooks_result
+}
+
+
+# func_parse_options [ARG]...
+# ---------------------------
+# The main option parsing loop.
+func_hookable func_parse_options
+func_parse_options ()
+{
+    $debug_cmd
+
+    func_parse_options_result=
+
+    # this just eases exit handling
+    while test $# -gt 0; do
+      # Defer to hook functions for initial option parsing, so they
+      # get priority in the event of reusing an option name.
+      func_run_hooks func_parse_options ${1+"$@"}
+
+      # Adjust func_parse_options positional parameters to match
+      eval set dummy "$func_run_hooks_result"; shift
+
+      # Break out of the loop if we already parsed every option.
+      test $# -gt 0 || break
+
+      _G_opt=$1
+      shift
+      case $_G_opt in
+        --debug|-x)   debug_cmd='set -x'
+                      func_echo "enabling shell trace mode"
+                      $debug_cmd
+                      ;;
+
+        --no-warnings|--no-warning|--no-warn)
+                      set dummy --warnings none ${1+"$@"}
+                      shift
+		      ;;
+
+        --warnings|--warning|-W)
+                      test $# = 0 && func_missing_arg $_G_opt && break
+                      case " $warning_categories $1" in
+                        *" $1 "*)
+                          # trailing space prevents matching last $1 above
+                          func_append_uniq opt_warning_types " $1"
+                          ;;
+                        *all)
+                          opt_warning_types=$warning_categories
+                          ;;
+                        *none)
+                          opt_warning_types=none
+                          warning_func=:
+                          ;;
+                        *error)
+                          opt_warning_types=$warning_categories
+                          warning_func=func_fatal_error
+                          ;;
+                        *)
+                          func_fatal_error \
+                             "unsupported warning category: '$1'"
+                          ;;
+                      esac
+                      shift
+                      ;;
+
+        --verbose|-v) opt_verbose=: ;;
+        --version)    func_version ;;
+        -\?|-h)       func_usage ;;
+        --help)       func_help ;;
+
+	# Separate optargs to long options (plugins may need this):
+	--*=*)        func_split_equals "$_G_opt"
+	              set dummy "$func_split_equals_lhs" \
+                          "$func_split_equals_rhs" ${1+"$@"}
+                      shift
+                      ;;
+
+       # Separate optargs to short options:
+        -W*)
+                      func_split_short_opt "$_G_opt"
+                      set dummy "$func_split_short_opt_name" \
+                          "$func_split_short_opt_arg" ${1+"$@"}
+                      shift
+                      ;;
+
+        # Separate non-argument short options:
+        -\?*|-h*|-v*|-x*)
+                      func_split_short_opt "$_G_opt"
+                      set dummy "$func_split_short_opt_name" \
+                          "-$func_split_short_opt_arg" ${1+"$@"}
+                      shift
+                      ;;
+
+        --)           break ;;
+        -*)           func_fatal_help "unrecognised option: '$_G_opt'" ;;
+        *)            set dummy "$_G_opt" ${1+"$@"}; shift; break ;;
+      esac
+    done
+
+    # save modified positional parameters for caller
+    func_quote_for_eval ${1+"$@"}
+    func_parse_options_result=$func_quote_for_eval_result
+}
+
+
+# func_validate_options [ARG]...
+# ------------------------------
+# Perform any sanity checks on option settings and/or unconsumed
+# arguments.
+func_hookable func_validate_options
+func_validate_options ()
+{
+    $debug_cmd
+
+    # Display all warnings if -W was not given.
+    test -n "$opt_warning_types" || opt_warning_types=" $warning_categories"
+
+    func_run_hooks func_validate_options ${1+"$@"}
+
+    # Bail if the options were screwed!
+    $exit_cmd $EXIT_FAILURE
+
+    # save modified positional parameters for caller
+    func_validate_options_result=$func_run_hooks_result
+}
+
+
+
+## ----------------- ##
+## Helper functions. ##
+## ----------------- ##
+
+# This section contains the helper functions used by the rest of the
+# hookable option parser framework in ascii-betical order.
+
+
+# func_fatal_help ARG...
+# ----------------------
+# Echo program name prefixed message to standard error, followed by
+# a help hint, and exit.
+func_fatal_help ()
+{
+    $debug_cmd
+
+    eval \$ECHO \""Usage: $usage"\"
+    eval \$ECHO \""$fatal_help"\"
+    func_error ${1+"$@"}
+    exit $EXIT_FAILURE
+}
+
+
+# func_help
+# ---------
+# Echo long help message to standard output and exit.
+func_help ()
+{
+    $debug_cmd
+
+    func_usage_message
+    $ECHO "$long_help_message"
+    exit 0
+}
+
+
+# func_missing_arg ARGNAME
+# ------------------------
+# Echo program name prefixed message to standard error and set global
+# exit_cmd.
+func_missing_arg ()
+{
+    $debug_cmd
+
+    func_error "Missing argument for '$1'."
+    exit_cmd=exit
+}
+
+
+# func_split_equals STRING
+# ------------------------
+# Set func_split_equals_lhs and func_split_equals_rhs shell variables after
+# splitting STRING at the '=' sign.
+test -z "$_G_HAVE_XSI_OPS" \
+    && (eval 'x=a/b/c;
+      test 5aa/bb/cc = "${#x}${x%%/*}${x%/*}${x#*/}${x##*/}"') 2>/dev/null \
+    && _G_HAVE_XSI_OPS=yes
+
+if test yes = "$_G_HAVE_XSI_OPS"
+then
+  # This is an XSI compatible shell, allowing a faster implementation...
+  eval 'func_split_equals ()
+  {
+      $debug_cmd
+
+      func_split_equals_lhs=${1%%=*}
+      func_split_equals_rhs=${1#*=}
+      test "x$func_split_equals_lhs" = "x$1" \
+        && func_split_equals_rhs=
+  }'
+else
+  # ...otherwise fall back to using expr, which is often a shell builtin.
+  func_split_equals ()
+  {
+      $debug_cmd
+
+      func_split_equals_lhs=`expr "x$1" : 'x\([^=]*\)'`
+      func_split_equals_rhs=
+      test "x$func_split_equals_lhs" = "x$1" \
+        || func_split_equals_rhs=`expr "x$1" : 'x[^=]*=\(.*\)$'`
+  }
+fi #func_split_equals
+
+
+# func_split_short_opt SHORTOPT
+# -----------------------------
+# Set func_split_short_opt_name and func_split_short_opt_arg shell
+# variables after splitting SHORTOPT after the 2nd character.
+if test yes = "$_G_HAVE_XSI_OPS"
+then
+  # This is an XSI compatible shell, allowing a faster implementation...
+  eval 'func_split_short_opt ()
+  {
+      $debug_cmd
+
+      func_split_short_opt_arg=${1#??}
+      func_split_short_opt_name=${1%"$func_split_short_opt_arg"}
+  }'
+else
+  # ...otherwise fall back to using expr, which is often a shell builtin.
+  func_split_short_opt ()
+  {
+      $debug_cmd
+
+      func_split_short_opt_name=`expr "x$1" : 'x-\(.\)'`
+      func_split_short_opt_arg=`expr "x$1" : 'x-.\(.*\)$'`
+  }
+fi #func_split_short_opt
+
+
+# func_usage
+# ----------
+# Echo short help message to standard output and exit.
+func_usage ()
+{
+    $debug_cmd
+
+    func_usage_message
+    $ECHO "Run '$progname --help |${PAGER-more}' for full usage"
+    exit 0
+}
+
+
+# func_usage_message
+# ------------------
+# Echo short help message to standard output.
+func_usage_message ()
+{
+    $debug_cmd
+
+    eval \$ECHO \""Usage: $usage"\"
+    echo
+    $SED -n 's|^# ||
+        /^Written by/{
+          x;p;x
+        }
+	h
+	/^Written by/q' < "$progpath"
+    echo
+    eval \$ECHO \""$usage_message"\"
+}
+
+
+# func_version
+# ------------
+# Echo version message to standard output and exit.
+func_version ()
+{
+    $debug_cmd
+
+    printf '%s\n' "$progname $scriptversion"
+    $SED -n '
+        /(C)/!b go
+        :more
+        /\./!{
+          N
+          s|\n# | |
+          b more
+        }
+        :go
+        /^# Written by /,/# warranty; / {
+          s|^# ||
+          s|^# *$||
+          s|\((C)\)[ 0-9,-]*[ ,-]\([1-9][0-9]* \)|\1 \2|
+          p
+        }
+        /^# Written by / {
+          s|^# ||
+          p
+        }
+        /^warranty; /q' < "$progpath"
+
+    exit $?
+}
+
+
+# Local variables:
+# mode: shell-script
+# sh-indentation: 2
+# eval: (add-hook 'before-save-hook 'time-stamp)
+# time-stamp-pattern: "10/scriptversion=%:y-%02m-%02d.%02H; # UTC"
+# time-stamp-time-zone: "UTC"
+# End:
+
+# Set a version string.
+scriptversion='(GNU libtool) 2.4.6'
+
+
+# func_echo ARG...
+# ----------------
+# Libtool also displays the current mode in messages, so override
+# funclib.sh func_echo with this custom definition.
+func_echo ()
+{
+    $debug_cmd
+
+    _G_message=$*
+
+    func_echo_IFS=$IFS
+    IFS=$nl
+    for _G_line in $_G_message; do
+      IFS=$func_echo_IFS
+      $ECHO "$progname${opt_mode+: $opt_mode}: $_G_line"
+    done
+    IFS=$func_echo_IFS
+}
+
+
+# func_warning ARG...
+# -------------------
+# Libtool warnings are not categorized, so override funclib.sh
+# func_warning with this simpler definition.
+func_warning ()
+{
+    $debug_cmd
+
+    $warning_func ${1+"$@"}
+}
+
+
+## ---------------- ##
+## Options parsing. ##
+## ---------------- ##
+
+# Hook in the functions to make sure our own options are parsed during
+# the option parsing loop.
+
+usage='$progpath [OPTION]... [MODE-ARG]...'
+
+# Short help message in response to '-h'.
+usage_message="Options:
+       --config             show all configuration variables
+       --debug              enable verbose shell tracing
+   -n, --dry-run            display commands without modifying any files
+       --features           display basic configuration information and exit
+       --mode=MODE          use operation mode MODE
+       --no-warnings        equivalent to '-Wnone'
+       --preserve-dup-deps  don't remove duplicate dependency libraries
+       --quiet, --silent    don't print informational messages
+       --tag=TAG            use configuration variables from tag TAG
+   -v, --verbose            print more informational messages than default
+       --version            print version information
+   -W, --warnings=CATEGORY  report the warnings falling in CATEGORY [all]
+   -h, --help, --help-all   print short, long, or detailed help message
+"
+
+# Additional text appended to 'usage_message' in response to '--help'.
+func_help ()
+{
+    $debug_cmd
+
+    func_usage_message
+    $ECHO "$long_help_message
+
+MODE must be one of the following:
+
+       clean           remove files from the build directory
+       compile         compile a source file into a libtool object
+       execute         automatically set library path, then run a program
+       finish          complete the installation of libtool libraries
+       install         install libraries or executables
+       link            create a library or an executable
+       uninstall       remove libraries from an installed directory
+
+MODE-ARGS vary depending on the MODE.  When passed as first option,
+'--mode=MODE' may be abbreviated as 'MODE' or a unique abbreviation of that.
+Try '$progname --help --mode=MODE' for a more detailed description of MODE.
+
+When reporting a bug, please describe a test case to reproduce it and
+include the following information:
+
+       host-triplet:   $host
+       shell:          $SHELL
+       compiler:       $LTCC
+       compiler flags: $LTCFLAGS
+       linker:         $LD (gnu? $with_gnu_ld)
+       version:        $progname (GNU libtool) 2.4.6
+       automake:       `($AUTOMAKE --version) 2>/dev/null |$SED 1q`
+       autoconf:       `($AUTOCONF --version) 2>/dev/null |$SED 1q`
+
+Report bugs to <bug-libtool@gnu.org>.
+GNU libtool home page: <http://www.gnu.org/software/libtool/>.
+General help using GNU software: <http://www.gnu.org/gethelp/>."
+    exit 0
+}
+
+
+# func_lo2o OBJECT-NAME
+# ---------------------
+# Transform OBJECT-NAME from a '.lo' suffix to the platform specific
+# object suffix.
+
+lo2o=s/\\.lo\$/.$objext/
+o2lo=s/\\.$objext\$/.lo/
+
+if test yes = "$_G_HAVE_XSI_OPS"; then
+  eval 'func_lo2o ()
+  {
+    case $1 in
+      *.lo) func_lo2o_result=${1%.lo}.$objext ;;
+      *   ) func_lo2o_result=$1               ;;
+    esac
+  }'
+
+  # func_xform LIBOBJ-OR-SOURCE
+  # ---------------------------
+  # Transform LIBOBJ-OR-SOURCE from a '.o' or '.c' (or otherwise)
+  # suffix to a '.lo' libtool-object suffix.
+  eval 'func_xform ()
+  {
+    func_xform_result=${1%.*}.lo
+  }'
+else
+  # ...otherwise fall back to using sed.
+  func_lo2o ()
+  {
+    func_lo2o_result=`$ECHO "$1" | $SED "$lo2o"`
+  }
+
+  func_xform ()
+  {
+    func_xform_result=`$ECHO "$1" | $SED 's|\.[^.]*$|.lo|'`
+  }
+fi
+
+
+# func_fatal_configuration ARG...
+# -------------------------------
+# Echo program name prefixed message to standard error, followed by
+# a configuration failure hint, and exit.
+func_fatal_configuration ()
+{
+    func_fatal_error ${1+"$@"} \
+      "See the $PACKAGE documentation for more information." \
+      "Fatal configuration error."
+}
+
+
+# func_config
+# -----------
+# Display the configuration for all the tags in this script.
+func_config ()
+{
+    re_begincf='^# ### BEGIN LIBTOOL'
+    re_endcf='^# ### END LIBTOOL'
+
+    # Default configuration.
+    $SED "1,/$re_begincf CONFIG/d;/$re_endcf CONFIG/,\$d" < "$progpath"
+
+    # Now print the configurations for the tags.
+    for tagname in $taglist; do
+      $SED -n "/$re_begincf TAG CONFIG: $tagname\$/,/$re_endcf TAG CONFIG: $tagname\$/p" < "$progpath"
+    done
+
+    exit $?
+}
+
+
+# func_features
+# -------------
+# Display the features supported by this script.
+func_features ()
+{
+    echo "host: $host"
+    if test yes = "$build_libtool_libs"; then
+      echo "enable shared libraries"
+    else
+      echo "disable shared libraries"
+    fi
+    if test yes = "$build_old_libs"; then
+      echo "enable static libraries"
+    else
+      echo "disable static libraries"
+    fi
+
+    exit $?
+}
+
+
+# func_enable_tag TAGNAME
+# -----------------------
+# Verify that TAGNAME is valid, and either flag an error and exit, or
+# enable the TAGNAME tag.  We also add TAGNAME to the global $taglist
+# variable here.
+func_enable_tag ()
+{
+    # Global variable:
+    tagname=$1
+
+    re_begincf="^# ### BEGIN LIBTOOL TAG CONFIG: $tagname\$"
+    re_endcf="^# ### END LIBTOOL TAG CONFIG: $tagname\$"
+    sed_extractcf=/$re_begincf/,/$re_endcf/p
+
+    # Validate tagname.
+    case $tagname in
+      *[!-_A-Za-z0-9,/]*)
+        func_fatal_error "invalid tag name: $tagname"
+        ;;
+    esac
+
+    # Don't test for the "default" C tag, as we know it's
+    # there but not specially marked.
+    case $tagname in
+        CC) ;;
+    *)
+        if $GREP "$re_begincf" "$progpath" >/dev/null 2>&1; then
+	  taglist="$taglist $tagname"
+
+	  # Evaluate the configuration.  Be careful to quote the path
+	  # and the sed script, to avoid splitting on whitespace, but
+	  # also don't use non-portable quotes within backquotes within
+	  # quotes we have to do it in 2 steps:
+	  extractedcf=`$SED -n -e "$sed_extractcf" < "$progpath"`
+	  eval "$extractedcf"
+        else
+	  func_error "ignoring unknown tag $tagname"
+        fi
+        ;;
+    esac
+}
+
+
+# func_check_version_match
+# ------------------------
+# Ensure that we are using m4 macros, and libtool script from the same
+# release of libtool.
+func_check_version_match ()
+{
+    if test "$package_revision" != "$macro_revision"; then
+      if test "$VERSION" != "$macro_version"; then
+        if test -z "$macro_version"; then
+          cat >&2 <<_LT_EOF
+$progname: Version mismatch error.  This is $PACKAGE $VERSION, but the
+$progname: definition of this LT_INIT comes from an older release.
+$progname: You should recreate aclocal.m4 with macros from $PACKAGE $VERSION
+$progname: and run autoconf again.
+_LT_EOF
+        else
+          cat >&2 <<_LT_EOF
+$progname: Version mismatch error.  This is $PACKAGE $VERSION, but the
+$progname: definition of this LT_INIT comes from $PACKAGE $macro_version.
+$progname: You should recreate aclocal.m4 with macros from $PACKAGE $VERSION
+$progname: and run autoconf again.
+_LT_EOF
+        fi
+      else
+        cat >&2 <<_LT_EOF
+$progname: Version mismatch error.  This is $PACKAGE $VERSION, revision $package_revision,
+$progname: but the definition of this LT_INIT comes from revision $macro_revision.
+$progname: You should recreate aclocal.m4 with macros from revision $package_revision
+$progname: of $PACKAGE $VERSION and run autoconf again.
+_LT_EOF
+      fi
+
+      exit $EXIT_MISMATCH
+    fi
+}
+
+
+# libtool_options_prep [ARG]...
+# -----------------------------
+# Preparation for options parsed by libtool.
+libtool_options_prep ()
+{
+    $debug_mode
+
+    # Option defaults:
+    opt_config=false
+    opt_dlopen=
+    opt_dry_run=false
+    opt_help=false
+    opt_mode=
+    opt_preserve_dup_deps=false
+    opt_quiet=false
+
+    nonopt=
+    preserve_args=
+
+    # Shorthand for --mode=foo, only valid as the first argument
+    case $1 in
+    clean|clea|cle|cl)
+      shift; set dummy --mode clean ${1+"$@"}; shift
+      ;;
+    compile|compil|compi|comp|com|co|c)
+      shift; set dummy --mode compile ${1+"$@"}; shift
+      ;;
+    execute|execut|execu|exec|exe|ex|e)
+      shift; set dummy --mode execute ${1+"$@"}; shift
+      ;;
+    finish|finis|fini|fin|fi|f)
+      shift; set dummy --mode finish ${1+"$@"}; shift
+      ;;
+    install|instal|insta|inst|ins|in|i)
+      shift; set dummy --mode install ${1+"$@"}; shift
+      ;;
+    link|lin|li|l)
+      shift; set dummy --mode link ${1+"$@"}; shift
+      ;;
+    uninstall|uninstal|uninsta|uninst|unins|unin|uni|un|u)
+      shift; set dummy --mode uninstall ${1+"$@"}; shift
+      ;;
+    esac
+
+    # Pass back the list of options.
+    func_quote_for_eval ${1+"$@"}
+    libtool_options_prep_result=$func_quote_for_eval_result
+}
+func_add_hook func_options_prep libtool_options_prep
+
+
+# libtool_parse_options [ARG]...
+# ---------------------------------
+# Provide handling for libtool specific options.
+libtool_parse_options ()
+{
+    $debug_cmd
+
+    # Perform our own loop to consume as many options as possible in
+    # each iteration.
+    while test $# -gt 0; do
+      _G_opt=$1
+      shift
+      case $_G_opt in
+        --dry-run|--dryrun|-n)
+                        opt_dry_run=:
+                        ;;
+
+        --config)       func_config ;;
+
+        --dlopen|-dlopen)
+                        opt_dlopen="${opt_dlopen+$opt_dlopen
+}$1"
+                        shift
+                        ;;
+
+        --preserve-dup-deps)
+                        opt_preserve_dup_deps=: ;;
+
+        --features)     func_features ;;
+
+        --finish)       set dummy --mode finish ${1+"$@"}; shift ;;
+
+        --help)         opt_help=: ;;
+
+        --help-all)     opt_help=': help-all' ;;
+
+        --mode)         test $# = 0 && func_missing_arg $_G_opt && break
+                        opt_mode=$1
+                        case $1 in
+                          # Valid mode arguments:
+                          clean|compile|execute|finish|install|link|relink|uninstall) ;;
+
+                          # Catch anything else as an error
+                          *) func_error "invalid argument for $_G_opt"
+                             exit_cmd=exit
+                             break
+                             ;;
+                        esac
+                        shift
+                        ;;
+
+        --no-silent|--no-quiet)
+                        opt_quiet=false
+                        func_append preserve_args " $_G_opt"
+                        ;;
+
+        --no-warnings|--no-warning|--no-warn)
+                        opt_warning=false
+                        func_append preserve_args " $_G_opt"
+                        ;;
+
+        --no-verbose)
+                        opt_verbose=false
+                        func_append preserve_args " $_G_opt"
+                        ;;
+
+        --silent|--quiet)
+                        opt_quiet=:
+                        opt_verbose=false
+                        func_append preserve_args " $_G_opt"
+                        ;;
+
+        --tag)          test $# = 0 && func_missing_arg $_G_opt && break
+                        opt_tag=$1
+                        func_append preserve_args " $_G_opt $1"
+                        func_enable_tag "$1"
+                        shift
+                        ;;
+
+        --verbose|-v)   opt_quiet=false
+                        opt_verbose=:
+                        func_append preserve_args " $_G_opt"
+                        ;;
+
+	# An option not handled by this hook function:
+        *)		set dummy "$_G_opt" ${1+"$@"};	shift; break  ;;
+      esac
+    done
+
+
+    # save modified positional parameters for caller
+    func_quote_for_eval ${1+"$@"}
+    libtool_parse_options_result=$func_quote_for_eval_result
+}
+func_add_hook func_parse_options libtool_parse_options
+
+
+
+# libtool_validate_options [ARG]...
+# ---------------------------------
+# Perform any sanity checks on option settings and/or unconsumed
+# arguments.
+libtool_validate_options ()
+{
+    # save first non-option argument
+    if test 0 -lt $#; then
+      nonopt=$1
+      shift
+    fi
+
+    # preserve --debug
+    test : = "$debug_cmd" || func_append preserve_args " --debug"
+
+    case $host in
+      # Solaris2 added to fix http://debbugs.gnu.org/cgi/bugreport.cgi?bug=16452
+      # see also: http://gcc.gnu.org/bugzilla/show_bug.cgi?id=59788
+      *cygwin* | *mingw* | *pw32* | *cegcc* | *solaris2* | *os2*)
+        # don't eliminate duplications in $postdeps and $predeps
+        opt_duplicate_compiler_generated_deps=:
+        ;;
+      *)
+        opt_duplicate_compiler_generated_deps=$opt_preserve_dup_deps
+        ;;
+    esac
+
+    $opt_help || {
+      # Sanity checks first:
+      func_check_version_match
+
+      test yes != "$build_libtool_libs" \
+        && test yes != "$build_old_libs" \
+        && func_fatal_configuration "not configured to build any kind of library"
+
+      # Darwin sucks
+      eval std_shrext=\"$shrext_cmds\"
+
+      # Only execute mode is allowed to have -dlopen flags.
+      if test -n "$opt_dlopen" && test execute != "$opt_mode"; then
+        func_error "unrecognized option '-dlopen'"
+        $ECHO "$help" 1>&2
+        exit $EXIT_FAILURE
+      fi
+
+      # Change the help message to a mode-specific one.
+      generic_help=$help
+      help="Try '$progname --help --mode=$opt_mode' for more information."
+    }
+
+    # Pass back the unparsed argument list
+    func_quote_for_eval ${1+"$@"}
+    libtool_validate_options_result=$func_quote_for_eval_result
+}
+func_add_hook func_validate_options libtool_validate_options
+
+
+# Process options as early as possible so that --help and --version
+# can return quickly.
+func_options ${1+"$@"}
+eval set dummy "$func_options_result"; shift
+
+
+
+## ----------- ##
+##    Main.    ##
+## ----------- ##
+
+magic='%%%MAGIC variable%%%'
+magic_exe='%%%MAGIC EXE variable%%%'
+
+# Global variables.
+extracted_archives=
+extracted_serial=0
+
+# If this variable is set in any of the actions, the command in it
+# will be execed at the end.  This prevents here-documents from being
+# left over by shells.
+exec_cmd=
+
+
+# A function that is used when there is no print builtin or printf.
+func_fallback_echo ()
+{
+  eval 'cat <<_LTECHO_EOF
+$1
+_LTECHO_EOF'
+}
+
+# func_generated_by_libtool
+# True iff stdin has been generated by Libtool. This function is only
+# a basic sanity check; it will hardly flush out determined imposters.
+func_generated_by_libtool_p ()
+{
+  $GREP "^# Generated by .*$PACKAGE" > /dev/null 2>&1
+}
+
+# func_lalib_p file
+# True iff FILE is a libtool '.la' library or '.lo' object file.
+# This function is only a basic sanity check; it will hardly flush out
+# determined imposters.
+func_lalib_p ()
+{
+    test -f "$1" &&
+      $SED -e 4q "$1" 2>/dev/null | func_generated_by_libtool_p
+}
+
+# func_lalib_unsafe_p file
+# True iff FILE is a libtool '.la' library or '.lo' object file.
+# This function implements the same check as func_lalib_p without
+# resorting to external programs.  To this end, it redirects stdin and
+# closes it afterwards, without saving the original file descriptor.
+# As a safety measure, use it only where a negative result would be
+# fatal anyway.  Works if 'file' does not exist.
+func_lalib_unsafe_p ()
+{
+    lalib_p=no
+    if test -f "$1" && test -r "$1" && exec 5<&0 <"$1"; then
+	for lalib_p_l in 1 2 3 4
+	do
+	    read lalib_p_line
+	    case $lalib_p_line in
+		\#\ Generated\ by\ *$PACKAGE* ) lalib_p=yes; break;;
+	    esac
+	done
+	exec 0<&5 5<&-
+    fi
+    test yes = "$lalib_p"
+}
+
+# func_ltwrapper_script_p file
+# True iff FILE is a libtool wrapper script
+# This function is only a basic sanity check; it will hardly flush out
+# determined imposters.
+func_ltwrapper_script_p ()
+{
+    test -f "$1" &&
+      $lt_truncate_bin < "$1" 2>/dev/null | func_generated_by_libtool_p
+}
+
+# func_ltwrapper_executable_p file
+# True iff FILE is a libtool wrapper executable
+# This function is only a basic sanity check; it will hardly flush out
+# determined imposters.
+func_ltwrapper_executable_p ()
+{
+    func_ltwrapper_exec_suffix=
+    case $1 in
+    *.exe) ;;
+    *) func_ltwrapper_exec_suffix=.exe ;;
+    esac
+    $GREP "$magic_exe" "$1$func_ltwrapper_exec_suffix" >/dev/null 2>&1
+}
+
+# func_ltwrapper_scriptname file
+# Assumes file is an ltwrapper_executable
+# uses $file to determine the appropriate filename for a
+# temporary ltwrapper_script.
+func_ltwrapper_scriptname ()
+{
+    func_dirname_and_basename "$1" "" "."
+    func_stripname '' '.exe' "$func_basename_result"
+    func_ltwrapper_scriptname_result=$func_dirname_result/$objdir/${func_stripname_result}_ltshwrapper
+}
+
+# func_ltwrapper_p file
+# True iff FILE is a libtool wrapper script or wrapper executable
+# This function is only a basic sanity check; it will hardly flush out
+# determined imposters.
+func_ltwrapper_p ()
+{
+    func_ltwrapper_script_p "$1" || func_ltwrapper_executable_p "$1"
+}
+
+
+# func_execute_cmds commands fail_cmd
+# Execute tilde-delimited COMMANDS.
+# If FAIL_CMD is given, eval that upon failure.
+# FAIL_CMD may read-access the current command in variable CMD!
+func_execute_cmds ()
+{
+    $debug_cmd
+
+    save_ifs=$IFS; IFS='~'
+    for cmd in $1; do
+      IFS=$sp$nl
+      eval cmd=\"$cmd\"
+      IFS=$save_ifs
+      func_show_eval "$cmd" "${2-:}"
+    done
+    IFS=$save_ifs
+}
+
+
+# func_source file
+# Source FILE, adding directory component if necessary.
+# Note that it is not necessary on cygwin/mingw to append a dot to
+# FILE even if both FILE and FILE.exe exist: automatic-append-.exe
+# behavior happens only for exec(3), not for open(2)!  Also, sourcing
+# 'FILE.' does not work on cygwin managed mounts.
+func_source ()
+{
+    $debug_cmd
+
+    case $1 in
+    */* | *\\*)	. "$1" ;;
+    *)		. "./$1" ;;
+    esac
+}
+
+
+# func_resolve_sysroot PATH
+# Replace a leading = in PATH with a sysroot.  Store the result into
+# func_resolve_sysroot_result
+func_resolve_sysroot ()
+{
+  func_resolve_sysroot_result=$1
+  case $func_resolve_sysroot_result in
+  =*)
+    func_stripname '=' '' "$func_resolve_sysroot_result"
+    func_resolve_sysroot_result=$lt_sysroot$func_stripname_result
+    ;;
+  esac
+}
+
+# func_replace_sysroot PATH
+# If PATH begins with the sysroot, replace it with = and
+# store the result into func_replace_sysroot_result.
+func_replace_sysroot ()
+{
+  case $lt_sysroot:$1 in
+  ?*:"$lt_sysroot"*)
+    func_stripname "$lt_sysroot" '' "$1"
+    func_replace_sysroot_result='='$func_stripname_result
+    ;;
+  *)
+    # Including no sysroot.
+    func_replace_sysroot_result=$1
+    ;;
+  esac
+}
+
+# func_infer_tag arg
+# Infer tagged configuration to use if any are available and
+# if one wasn't chosen via the "--tag" command line option.
+# Only attempt this if the compiler in the base compile
+# command doesn't match the default compiler.
+# arg is usually of the form 'gcc ...'
+func_infer_tag ()
+{
+    $debug_cmd
+
+    if test -n "$available_tags" && test -z "$tagname"; then
+      CC_quoted=
+      for arg in $CC; do
+	func_append_quoted CC_quoted "$arg"
+      done
+      CC_expanded=`func_echo_all $CC`
+      CC_quoted_expanded=`func_echo_all $CC_quoted`
+      case $@ in
+      # Blanks in the command may have been stripped by the calling shell,
+      # but not from the CC environment variable when configure was run.
+      " $CC "* | "$CC "* | " $CC_expanded "* | "$CC_expanded "* | \
+      " $CC_quoted"* | "$CC_quoted "* | " $CC_quoted_expanded "* | "$CC_quoted_expanded "*) ;;
+      # Blanks at the start of $base_compile will cause this to fail
+      # if we don't check for them as well.
+      *)
+	for z in $available_tags; do
+	  if $GREP "^# ### BEGIN LIBTOOL TAG CONFIG: $z$" < "$progpath" > /dev/null; then
+	    # Evaluate the configuration.
+	    eval "`$SED -n -e '/^# ### BEGIN LIBTOOL TAG CONFIG: '$z'$/,/^# ### END LIBTOOL TAG CONFIG: '$z'$/p' < $progpath`"
+	    CC_quoted=
+	    for arg in $CC; do
+	      # Double-quote args containing other shell metacharacters.
+	      func_append_quoted CC_quoted "$arg"
+	    done
+	    CC_expanded=`func_echo_all $CC`
+	    CC_quoted_expanded=`func_echo_all $CC_quoted`
+	    case "$@ " in
+	    " $CC "* | "$CC "* | " $CC_expanded "* | "$CC_expanded "* | \
+	    " $CC_quoted"* | "$CC_quoted "* | " $CC_quoted_expanded "* | "$CC_quoted_expanded "*)
+	      # The compiler in the base compile command matches
+	      # the one in the tagged configuration.
+	      # Assume this is the tagged configuration we want.
+	      tagname=$z
+	      break
+	      ;;
+	    esac
+	  fi
+	done
+	# If $tagname still isn't set, then no tagged configuration
+	# was found and let the user know that the "--tag" command
+	# line option must be used.
+	if test -z "$tagname"; then
+	  func_echo "unable to infer tagged configuration"
+	  func_fatal_error "specify a tag with '--tag'"
+#	else
+#	  func_verbose "using $tagname tagged configuration"
+	fi
+	;;
+      esac
+    fi
+}
+
+
+
+# func_write_libtool_object output_name pic_name nonpic_name
+# Create a libtool object file (analogous to a ".la" file),
+# but don't create it if we're doing a dry run.
+func_write_libtool_object ()
+{
+    write_libobj=$1
+    if test yes = "$build_libtool_libs"; then
+      write_lobj=\'$2\'
+    else
+      write_lobj=none
+    fi
+
+    if test yes = "$build_old_libs"; then
+      write_oldobj=\'$3\'
+    else
+      write_oldobj=none
+    fi
+
+    $opt_dry_run || {
+      cat >${write_libobj}T <<EOF
+# $write_libobj - a libtool object file
+# Generated by $PROGRAM (GNU $PACKAGE) $VERSION
+#
+# Please DO NOT delete this file!
+# It is necessary for linking the library.
+
+# Name of the PIC object.
+pic_object=$write_lobj
+
+# Name of the non-PIC object
+non_pic_object=$write_oldobj
+
+EOF
+      $MV "${write_libobj}T" "$write_libobj"
+    }
+}
+
+
+##################################################
+# FILE NAME AND PATH CONVERSION HELPER FUNCTIONS #
+##################################################
+
+# func_convert_core_file_wine_to_w32 ARG
+# Helper function used by file name conversion functions when $build is *nix,
+# and $host is mingw, cygwin, or some other w32 environment. Relies on a
+# correctly configured wine environment available, with the winepath program
+# in $build's $PATH.
+#
+# ARG is the $build file name to be converted to w32 format.
+# Result is available in $func_convert_core_file_wine_to_w32_result, and will
+# be empty on error (or when ARG is empty)
+func_convert_core_file_wine_to_w32 ()
+{
+  $debug_cmd
+
+  func_convert_core_file_wine_to_w32_result=$1
+  if test -n "$1"; then
+    # Unfortunately, winepath does not exit with a non-zero error code, so we
+    # are forced to check the contents of stdout. On the other hand, if the
+    # command is not found, the shell will set an exit code of 127 and print
+    # *an error message* to stdout. So we must check for both error code of
+    # zero AND non-empty stdout, which explains the odd construction:
+    func_convert_core_file_wine_to_w32_tmp=`winepath -w "$1" 2>/dev/null`
+    if test "$?" -eq 0 && test -n "$func_convert_core_file_wine_to_w32_tmp"; then
+      func_convert_core_file_wine_to_w32_result=`$ECHO "$func_convert_core_file_wine_to_w32_tmp" |
+        $SED -e "$sed_naive_backslashify"`
+    else
+      func_convert_core_file_wine_to_w32_result=
+    fi
+  fi
+}
+# end: func_convert_core_file_wine_to_w32
+
+
+# func_convert_core_path_wine_to_w32 ARG
+# Helper function used by path conversion functions when $build is *nix, and
+# $host is mingw, cygwin, or some other w32 environment. Relies on a correctly
+# configured wine environment available, with the winepath program in $build's
+# $PATH. Assumes ARG has no leading or trailing path separator characters.
+#
+# ARG is path to be converted from $build format to win32.
+# Result is available in $func_convert_core_path_wine_to_w32_result.
+# Unconvertible file (directory) names in ARG are skipped; if no directory names
+# are convertible, then the result may be empty.
+func_convert_core_path_wine_to_w32 ()
+{
+  $debug_cmd
+
+  # unfortunately, winepath doesn't convert paths, only file names
+  func_convert_core_path_wine_to_w32_result=
+  if test -n "$1"; then
+    oldIFS=$IFS
+    IFS=:
+    for func_convert_core_path_wine_to_w32_f in $1; do
+      IFS=$oldIFS
+      func_convert_core_file_wine_to_w32 "$func_convert_core_path_wine_to_w32_f"
+      if test -n "$func_convert_core_file_wine_to_w32_result"; then
+        if test -z "$func_convert_core_path_wine_to_w32_result"; then
+          func_convert_core_path_wine_to_w32_result=$func_convert_core_file_wine_to_w32_result
+        else
+          func_append func_convert_core_path_wine_to_w32_result ";$func_convert_core_file_wine_to_w32_result"
+        fi
+      fi
+    done
+    IFS=$oldIFS
+  fi
+}
+# end: func_convert_core_path_wine_to_w32
+
+
+# func_cygpath ARGS...
+# Wrapper around calling the cygpath program via LT_CYGPATH. This is used when
+# when (1) $build is *nix and Cygwin is hosted via a wine environment; or (2)
+# $build is MSYS and $host is Cygwin, or (3) $build is Cygwin. In case (1) or
+# (2), returns the Cygwin file name or path in func_cygpath_result (input
+# file name or path is assumed to be in w32 format, as previously converted
+# from $build's *nix or MSYS format). In case (3), returns the w32 file name
+# or path in func_cygpath_result (input file name or path is assumed to be in
+# Cygwin format). Returns an empty string on error.
+#
+# ARGS are passed to cygpath, with the last one being the file name or path to
+# be converted.
+#
+# Specify the absolute *nix (or w32) name to cygpath in the LT_CYGPATH
+# environment variable; do not put it in $PATH.
+func_cygpath ()
+{
+  $debug_cmd
+
+  if test -n "$LT_CYGPATH" && test -f "$LT_CYGPATH"; then
+    func_cygpath_result=`$LT_CYGPATH "$@" 2>/dev/null`
+    if test "$?" -ne 0; then
+      # on failure, ensure result is empty
+      func_cygpath_result=
+    fi
+  else
+    func_cygpath_result=
+    func_error "LT_CYGPATH is empty or specifies non-existent file: '$LT_CYGPATH'"
+  fi
+}
+#end: func_cygpath
+
+
+# func_convert_core_msys_to_w32 ARG
+# Convert file name or path ARG from MSYS format to w32 format.  Return
+# result in func_convert_core_msys_to_w32_result.
+func_convert_core_msys_to_w32 ()
+{
+  $debug_cmd
+
+  # awkward: cmd appends spaces to result
+  func_convert_core_msys_to_w32_result=`( cmd //c echo "$1" ) 2>/dev/null |
+    $SED -e 's/[ ]*$//' -e "$sed_naive_backslashify"`
+}
+#end: func_convert_core_msys_to_w32
+
+
+# func_convert_file_check ARG1 ARG2
+# Verify that ARG1 (a file name in $build format) was converted to $host
+# format in ARG2. Otherwise, emit an error message, but continue (resetting
+# func_to_host_file_result to ARG1).
+func_convert_file_check ()
+{
+  $debug_cmd
+
+  if test -z "$2" && test -n "$1"; then
+    func_error "Could not determine host file name corresponding to"
+    func_error "  '$1'"
+    func_error "Continuing, but uninstalled executables may not work."
+    # Fallback:
+    func_to_host_file_result=$1
+  fi
+}
+# end func_convert_file_check
+
+
+# func_convert_path_check FROM_PATHSEP TO_PATHSEP FROM_PATH TO_PATH
+# Verify that FROM_PATH (a path in $build format) was converted to $host
+# format in TO_PATH. Otherwise, emit an error message, but continue, resetting
+# func_to_host_file_result to a simplistic fallback value (see below).
+func_convert_path_check ()
+{
+  $debug_cmd
+
+  if test -z "$4" && test -n "$3"; then
+    func_error "Could not determine the host path corresponding to"
+    func_error "  '$3'"
+    func_error "Continuing, but uninstalled executables may not work."
+    # Fallback.  This is a deliberately simplistic "conversion" and
+    # should not be "improved".  See libtool.info.
+    if test "x$1" != "x$2"; then
+      lt_replace_pathsep_chars="s|$1|$2|g"
+      func_to_host_path_result=`echo "$3" |
+        $SED -e "$lt_replace_pathsep_chars"`
+    else
+      func_to_host_path_result=$3
+    fi
+  fi
+}
+# end func_convert_path_check
+
+
+# func_convert_path_front_back_pathsep FRONTPAT BACKPAT REPL ORIG
+# Modifies func_to_host_path_result by prepending REPL if ORIG matches FRONTPAT
+# and appending REPL if ORIG matches BACKPAT.
+func_convert_path_front_back_pathsep ()
+{
+  $debug_cmd
+
+  case $4 in
+  $1 ) func_to_host_path_result=$3$func_to_host_path_result
+    ;;
+  esac
+  case $4 in
+  $2 ) func_append func_to_host_path_result "$3"
+    ;;
+  esac
+}
+# end func_convert_path_front_back_pathsep
+
+
+##################################################
+# $build to $host FILE NAME CONVERSION FUNCTIONS #
+##################################################
+# invoked via '$to_host_file_cmd ARG'
+#
+# In each case, ARG is the path to be converted from $build to $host format.
+# Result will be available in $func_to_host_file_result.
+
+
+# func_to_host_file ARG
+# Converts the file name ARG from $build format to $host format. Return result
+# in func_to_host_file_result.
+func_to_host_file ()
+{
+  $debug_cmd
+
+  $to_host_file_cmd "$1"
+}
+# end func_to_host_file
+
+
+# func_to_tool_file ARG LAZY
+# converts the file name ARG from $build format to toolchain format. Return
+# result in func_to_tool_file_result.  If the conversion in use is listed
+# in (the comma separated) LAZY, no conversion takes place.
+func_to_tool_file ()
+{
+  $debug_cmd
+
+  case ,$2, in
+    *,"$to_tool_file_cmd",*)
+      func_to_tool_file_result=$1
+      ;;
+    *)
+      $to_tool_file_cmd "$1"
+      func_to_tool_file_result=$func_to_host_file_result
+      ;;
+  esac
+}
+# end func_to_tool_file
+
+
+# func_convert_file_noop ARG
+# Copy ARG to func_to_host_file_result.
+func_convert_file_noop ()
+{
+  func_to_host_file_result=$1
+}
+# end func_convert_file_noop
+
+
+# func_convert_file_msys_to_w32 ARG
+# Convert file name ARG from (mingw) MSYS to (mingw) w32 format; automatic
+# conversion to w32 is not available inside the cwrapper.  Returns result in
+# func_to_host_file_result.
+func_convert_file_msys_to_w32 ()
+{
+  $debug_cmd
+
+  func_to_host_file_result=$1
+  if test -n "$1"; then
+    func_convert_core_msys_to_w32 "$1"
+    func_to_host_file_result=$func_convert_core_msys_to_w32_result
+  fi
+  func_convert_file_check "$1" "$func_to_host_file_result"
+}
+# end func_convert_file_msys_to_w32
+
+
+# func_convert_file_cygwin_to_w32 ARG
+# Convert file name ARG from Cygwin to w32 format.  Returns result in
+# func_to_host_file_result.
+func_convert_file_cygwin_to_w32 ()
+{
+  $debug_cmd
+
+  func_to_host_file_result=$1
+  if test -n "$1"; then
+    # because $build is cygwin, we call "the" cygpath in $PATH; no need to use
+    # LT_CYGPATH in this case.
+    func_to_host_file_result=`cygpath -m "$1"`
+  fi
+  func_convert_file_check "$1" "$func_to_host_file_result"
+}
+# end func_convert_file_cygwin_to_w32
+
+
+# func_convert_file_nix_to_w32 ARG
+# Convert file name ARG from *nix to w32 format.  Requires a wine environment
+# and a working winepath. Returns result in func_to_host_file_result.
+func_convert_file_nix_to_w32 ()
+{
+  $debug_cmd
+
+  func_to_host_file_result=$1
+  if test -n "$1"; then
+    func_convert_core_file_wine_to_w32 "$1"
+    func_to_host_file_result=$func_convert_core_file_wine_to_w32_result
+  fi
+  func_convert_file_check "$1" "$func_to_host_file_result"
+}
+# end func_convert_file_nix_to_w32
+
+
+# func_convert_file_msys_to_cygwin ARG
+# Convert file name ARG from MSYS to Cygwin format.  Requires LT_CYGPATH set.
+# Returns result in func_to_host_file_result.
+func_convert_file_msys_to_cygwin ()
+{
+  $debug_cmd
+
+  func_to_host_file_result=$1
+  if test -n "$1"; then
+    func_convert_core_msys_to_w32 "$1"
+    func_cygpath -u "$func_convert_core_msys_to_w32_result"
+    func_to_host_file_result=$func_cygpath_result
+  fi
+  func_convert_file_check "$1" "$func_to_host_file_result"
+}
+# end func_convert_file_msys_to_cygwin
+
+
+# func_convert_file_nix_to_cygwin ARG
+# Convert file name ARG from *nix to Cygwin format.  Requires Cygwin installed
+# in a wine environment, working winepath, and LT_CYGPATH set.  Returns result
+# in func_to_host_file_result.
+func_convert_file_nix_to_cygwin ()
+{
+  $debug_cmd
+
+  func_to_host_file_result=$1
+  if test -n "$1"; then
+    # convert from *nix to w32, then use cygpath to convert from w32 to cygwin.
+    func_convert_core_file_wine_to_w32 "$1"
+    func_cygpath -u "$func_convert_core_file_wine_to_w32_result"
+    func_to_host_file_result=$func_cygpath_result
+  fi
+  func_convert_file_check "$1" "$func_to_host_file_result"
+}
+# end func_convert_file_nix_to_cygwin
+
+
+#############################################
+# $build to $host PATH CONVERSION FUNCTIONS #
+#############################################
+# invoked via '$to_host_path_cmd ARG'
+#
+# In each case, ARG is the path to be converted from $build to $host format.
+# The result will be available in $func_to_host_path_result.
+#
+# Path separators are also converted from $build format to $host format.  If
+# ARG begins or ends with a path separator character, it is preserved (but
+# converted to $host format) on output.
+#
+# All path conversion functions are named using the following convention:
+#   file name conversion function    : func_convert_file_X_to_Y ()
+#   path conversion function         : func_convert_path_X_to_Y ()
+# where, for any given $build/$host combination the 'X_to_Y' value is the
+# same.  If conversion functions are added for new $build/$host combinations,
+# the two new functions must follow this pattern, or func_init_to_host_path_cmd
+# will break.
+
+
+# func_init_to_host_path_cmd
+# Ensures that function "pointer" variable $to_host_path_cmd is set to the
+# appropriate value, based on the value of $to_host_file_cmd.
+to_host_path_cmd=
+func_init_to_host_path_cmd ()
+{
+  $debug_cmd
+
+  if test -z "$to_host_path_cmd"; then
+    func_stripname 'func_convert_file_' '' "$to_host_file_cmd"
+    to_host_path_cmd=func_convert_path_$func_stripname_result
+  fi
+}
+
+
+# func_to_host_path ARG
+# Converts the path ARG from $build format to $host format. Return result
+# in func_to_host_path_result.
+func_to_host_path ()
+{
+  $debug_cmd
+
+  func_init_to_host_path_cmd
+  $to_host_path_cmd "$1"
+}
+# end func_to_host_path
+
+
+# func_convert_path_noop ARG
+# Copy ARG to func_to_host_path_result.
+func_convert_path_noop ()
+{
+  func_to_host_path_result=$1
+}
+# end func_convert_path_noop
+
+
+# func_convert_path_msys_to_w32 ARG
+# Convert path ARG from (mingw) MSYS to (mingw) w32 format; automatic
+# conversion to w32 is not available inside the cwrapper.  Returns result in
+# func_to_host_path_result.
+func_convert_path_msys_to_w32 ()
+{
+  $debug_cmd
+
+  func_to_host_path_result=$1
+  if test -n "$1"; then
+    # Remove leading and trailing path separator characters from ARG.  MSYS
+    # behavior is inconsistent here; cygpath turns them into '.;' and ';.';
+    # and winepath ignores them completely.
+    func_stripname : : "$1"
+    func_to_host_path_tmp1=$func_stripname_result
+    func_convert_core_msys_to_w32 "$func_to_host_path_tmp1"
+    func_to_host_path_result=$func_convert_core_msys_to_w32_result
+    func_convert_path_check : ";" \
+      "$func_to_host_path_tmp1" "$func_to_host_path_result"
+    func_convert_path_front_back_pathsep ":*" "*:" ";" "$1"
+  fi
+}
+# end func_convert_path_msys_to_w32
+
+
+# func_convert_path_cygwin_to_w32 ARG
+# Convert path ARG from Cygwin to w32 format.  Returns result in
+# func_to_host_file_result.
+func_convert_path_cygwin_to_w32 ()
+{
+  $debug_cmd
+
+  func_to_host_path_result=$1
+  if test -n "$1"; then
+    # See func_convert_path_msys_to_w32:
+    func_stripname : : "$1"
+    func_to_host_path_tmp1=$func_stripname_result
+    func_to_host_path_result=`cygpath -m -p "$func_to_host_path_tmp1"`
+    func_convert_path_check : ";" \
+      "$func_to_host_path_tmp1" "$func_to_host_path_result"
+    func_convert_path_front_back_pathsep ":*" "*:" ";" "$1"
+  fi
+}
+# end func_convert_path_cygwin_to_w32
+
+
+# func_convert_path_nix_to_w32 ARG
+# Convert path ARG from *nix to w32 format.  Requires a wine environment and
+# a working winepath.  Returns result in func_to_host_file_result.
+func_convert_path_nix_to_w32 ()
+{
+  $debug_cmd
+
+  func_to_host_path_result=$1
+  if test -n "$1"; then
+    # See func_convert_path_msys_to_w32:
+    func_stripname : : "$1"
+    func_to_host_path_tmp1=$func_stripname_result
+    func_convert_core_path_wine_to_w32 "$func_to_host_path_tmp1"
+    func_to_host_path_result=$func_convert_core_path_wine_to_w32_result
+    func_convert_path_check : ";" \
+      "$func_to_host_path_tmp1" "$func_to_host_path_result"
+    func_convert_path_front_back_pathsep ":*" "*:" ";" "$1"
+  fi
+}
+# end func_convert_path_nix_to_w32
+
+
+# func_convert_path_msys_to_cygwin ARG
+# Convert path ARG from MSYS to Cygwin format.  Requires LT_CYGPATH set.
+# Returns result in func_to_host_file_result.
+func_convert_path_msys_to_cygwin ()
+{
+  $debug_cmd
+
+  func_to_host_path_result=$1
+  if test -n "$1"; then
+    # See func_convert_path_msys_to_w32:
+    func_stripname : : "$1"
+    func_to_host_path_tmp1=$func_stripname_result
+    func_convert_core_msys_to_w32 "$func_to_host_path_tmp1"
+    func_cygpath -u -p "$func_convert_core_msys_to_w32_result"
+    func_to_host_path_result=$func_cygpath_result
+    func_convert_path_check : : \
+      "$func_to_host_path_tmp1" "$func_to_host_path_result"
+    func_convert_path_front_back_pathsep ":*" "*:" : "$1"
+  fi
+}
+# end func_convert_path_msys_to_cygwin
+
+
+# func_convert_path_nix_to_cygwin ARG
+# Convert path ARG from *nix to Cygwin format.  Requires Cygwin installed in a
+# a wine environment, working winepath, and LT_CYGPATH set.  Returns result in
+# func_to_host_file_result.
+func_convert_path_nix_to_cygwin ()
+{
+  $debug_cmd
+
+  func_to_host_path_result=$1
+  if test -n "$1"; then
+    # Remove leading and trailing path separator characters from
+    # ARG. msys behavior is inconsistent here, cygpath turns them
+    # into '.;' and ';.', and winepath ignores them completely.
+    func_stripname : : "$1"
+    func_to_host_path_tmp1=$func_stripname_result
+    func_convert_core_path_wine_to_w32 "$func_to_host_path_tmp1"
+    func_cygpath -u -p "$func_convert_core_path_wine_to_w32_result"
+    func_to_host_path_result=$func_cygpath_result
+    func_convert_path_check : : \
+      "$func_to_host_path_tmp1" "$func_to_host_path_result"
+    func_convert_path_front_back_pathsep ":*" "*:" : "$1"
+  fi
+}
+# end func_convert_path_nix_to_cygwin
+
+
+# func_dll_def_p FILE
+# True iff FILE is a Windows DLL '.def' file.
+# Keep in sync with _LT_DLL_DEF_P in libtool.m4
+func_dll_def_p ()
+{
+  $debug_cmd
+
+  func_dll_def_p_tmp=`$SED -n \
+    -e 's/^[	 ]*//' \
+    -e '/^\(;.*\)*$/d' \
+    -e 's/^\(EXPORTS\|LIBRARY\)\([	 ].*\)*$/DEF/p' \
+    -e q \
+    "$1"`
+  test DEF = "$func_dll_def_p_tmp"
+}
+
+
+# func_mode_compile arg...
+func_mode_compile ()
+{
+    $debug_cmd
+
+    # Get the compilation command and the source file.
+    base_compile=
+    srcfile=$nonopt  #  always keep a non-empty value in "srcfile"
+    suppress_opt=yes
+    suppress_output=
+    arg_mode=normal
+    libobj=
+    later=
+    pie_flag=
+
+    for arg
+    do
+      case $arg_mode in
+      arg  )
+	# do not "continue".  Instead, add this to base_compile
+	lastarg=$arg
+	arg_mode=normal
+	;;
+
+      target )
+	libobj=$arg
+	arg_mode=normal
+	continue
+	;;
+
+      normal )
+	# Accept any command-line options.
+	case $arg in
+	-o)
+	  test -n "$libobj" && \
+	    func_fatal_error "you cannot specify '-o' more than once"
+	  arg_mode=target
+	  continue
+	  ;;
+
+	-pie | -fpie | -fPIE)
+          func_append pie_flag " $arg"
+	  continue
+	  ;;
+
+	-shared | -static | -prefer-pic | -prefer-non-pic)
+	  func_append later " $arg"
+	  continue
+	  ;;
+
+	-no-suppress)
+	  suppress_opt=no
+	  continue
+	  ;;
+
+	-Xcompiler)
+	  arg_mode=arg  #  the next one goes into the "base_compile" arg list
+	  continue      #  The current "srcfile" will either be retained or
+	  ;;            #  replaced later.  I would guess that would be a bug.
+
+	-Wc,*)
+	  func_stripname '-Wc,' '' "$arg"
+	  args=$func_stripname_result
+	  lastarg=
+	  save_ifs=$IFS; IFS=,
+	  for arg in $args; do
+	    IFS=$save_ifs
+	    func_append_quoted lastarg "$arg"
+	  done
+	  IFS=$save_ifs
+	  func_stripname ' ' '' "$lastarg"
+	  lastarg=$func_stripname_result
+
+	  # Add the arguments to base_compile.
+	  func_append base_compile " $lastarg"
+	  continue
+	  ;;
+
+	*)
+	  # Accept the current argument as the source file.
+	  # The previous "srcfile" becomes the current argument.
+	  #
+	  lastarg=$srcfile
+	  srcfile=$arg
+	  ;;
+	esac  #  case $arg
+	;;
+      esac    #  case $arg_mode
+
+      # Aesthetically quote the previous argument.
+      func_append_quoted base_compile "$lastarg"
+    done # for arg
+
+    case $arg_mode in
+    arg)
+      func_fatal_error "you must specify an argument for -Xcompile"
+      ;;
+    target)
+      func_fatal_error "you must specify a target with '-o'"
+      ;;
+    *)
+      # Get the name of the library object.
+      test -z "$libobj" && {
+	func_basename "$srcfile"
+	libobj=$func_basename_result
+      }
+      ;;
+    esac
+
+    # Recognize several different file suffixes.
+    # If the user specifies -o file.o, it is replaced with file.lo
+    case $libobj in
+    *.[cCFSifmso] | \
+    *.ada | *.adb | *.ads | *.asm | \
+    *.c++ | *.cc | *.ii | *.class | *.cpp | *.cxx | \
+    *.[fF][09]? | *.for | *.java | *.go | *.obj | *.sx | *.cu | *.cup)
+      func_xform "$libobj"
+      libobj=$func_xform_result
+      ;;
+    esac
+
+    case $libobj in
+    *.lo) func_lo2o "$libobj"; obj=$func_lo2o_result ;;
+    *)
+      func_fatal_error "cannot determine name of library object from '$libobj'"
+      ;;
+    esac
+
+    func_infer_tag $base_compile
+
+    for arg in $later; do
+      case $arg in
+      -shared)
+	test yes = "$build_libtool_libs" \
+	  || func_fatal_configuration "cannot build a shared library"
+	build_old_libs=no
+	continue
+	;;
+
+      -static)
+	build_libtool_libs=no
+	build_old_libs=yes
+	continue
+	;;
+
+      -prefer-pic)
+	pic_mode=yes
+	continue
+	;;
+
+      -prefer-non-pic)
+	pic_mode=no
+	continue
+	;;
+      esac
+    done
+
+    func_quote_for_eval "$libobj"
+    test "X$libobj" != "X$func_quote_for_eval_result" \
+      && $ECHO "X$libobj" | $GREP '[]~#^*{};<>?"'"'"'	 &()|`$[]' \
+      && func_warning "libobj name '$libobj' may not contain shell special characters."
+    func_dirname_and_basename "$obj" "/" ""
+    objname=$func_basename_result
+    xdir=$func_dirname_result
+    lobj=$xdir$objdir/$objname
+
+    test -z "$base_compile" && \
+      func_fatal_help "you must specify a compilation command"
+
+    # Delete any leftover library objects.
+    if test yes = "$build_old_libs"; then
+      removelist="$obj $lobj $libobj ${libobj}T"
+    else
+      removelist="$lobj $libobj ${libobj}T"
+    fi
+
+    # On Cygwin there's no "real" PIC flag so we must build both object types
+    case $host_os in
+    cygwin* | mingw* | pw32* | os2* | cegcc*)
+      pic_mode=default
+      ;;
+    esac
+    if test no = "$pic_mode" && test pass_all != "$deplibs_check_method"; then
+      # non-PIC code in shared libraries is not supported
+      pic_mode=default
+    fi
+
+    # Calculate the filename of the output object if compiler does
+    # not support -o with -c
+    if test no = "$compiler_c_o"; then
+      output_obj=`$ECHO "$srcfile" | $SED 's%^.*/%%; s%\.[^.]*$%%'`.$objext
+      lockfile=$output_obj.lock
+    else
+      output_obj=
+      need_locks=no
+      lockfile=
+    fi
+
+    # Lock this critical section if it is needed
+    # We use this script file to make the link, it avoids creating a new file
+    if test yes = "$need_locks"; then
+      until $opt_dry_run || ln "$progpath" "$lockfile" 2>/dev/null; do
+	func_echo "Waiting for $lockfile to be removed"
+	sleep 2
+      done
+    elif test warn = "$need_locks"; then
+      if test -f "$lockfile"; then
+	$ECHO "\
+*** ERROR, $lockfile exists and contains:
+`cat $lockfile 2>/dev/null`
+
+This indicates that another process is trying to use the same
+temporary object file, and libtool could not work around it because
+your compiler does not support '-c' and '-o' together.  If you
+repeat this compilation, it may succeed, by chance, but you had better
+avoid parallel builds (make -j) in this platform, or get a better
+compiler."
+
+	$opt_dry_run || $RM $removelist
+	exit $EXIT_FAILURE
+      fi
+      func_append removelist " $output_obj"
+      $ECHO "$srcfile" > "$lockfile"
+    fi
+
+    $opt_dry_run || $RM $removelist
+    func_append removelist " $lockfile"
+    trap '$opt_dry_run || $RM $removelist; exit $EXIT_FAILURE' 1 2 15
+
+    func_to_tool_file "$srcfile" func_convert_file_msys_to_w32
+    srcfile=$func_to_tool_file_result
+    func_quote_for_eval "$srcfile"
+    qsrcfile=$func_quote_for_eval_result
+
+    # Only build a PIC object if we are building libtool libraries.
+    if test yes = "$build_libtool_libs"; then
+      # Without this assignment, base_compile gets emptied.
+      fbsd_hideous_sh_bug=$base_compile
+
+      if test no != "$pic_mode"; then
+	command="$base_compile $qsrcfile $pic_flag"
+      else
+	# Don't build PIC code
+	command="$base_compile $qsrcfile"
+      fi
+
+      func_mkdir_p "$xdir$objdir"
+
+      if test -z "$output_obj"; then
+	# Place PIC objects in $objdir
+	func_append command " -o $lobj"
+      fi
+
+      func_show_eval_locale "$command"	\
+          'test -n "$output_obj" && $RM $removelist; exit $EXIT_FAILURE'
+
+      if test warn = "$need_locks" &&
+	 test "X`cat $lockfile 2>/dev/null`" != "X$srcfile"; then
+	$ECHO "\
+*** ERROR, $lockfile contains:
+`cat $lockfile 2>/dev/null`
+
+but it should contain:
+$srcfile
+
+This indicates that another process is trying to use the same
+temporary object file, and libtool could not work around it because
+your compiler does not support '-c' and '-o' together.  If you
+repeat this compilation, it may succeed, by chance, but you had better
+avoid parallel builds (make -j) in this platform, or get a better
+compiler."
+
+	$opt_dry_run || $RM $removelist
+	exit $EXIT_FAILURE
+      fi
+
+      # Just move the object if needed, then go on to compile the next one
+      if test -n "$output_obj" && test "X$output_obj" != "X$lobj"; then
+	func_show_eval '$MV "$output_obj" "$lobj"' \
+	  'error=$?; $opt_dry_run || $RM $removelist; exit $error'
+      fi
+
+      # Allow error messages only from the first compilation.
+      if test yes = "$suppress_opt"; then
+	suppress_output=' >/dev/null 2>&1'
+      fi
+    fi
+
+    # Only build a position-dependent object if we build old libraries.
+    if test yes = "$build_old_libs"; then
+      if test yes != "$pic_mode"; then
+	# Don't build PIC code
+	command="$base_compile $qsrcfile$pie_flag"
+      else
+	command="$base_compile $qsrcfile $pic_flag"
+      fi
+      if test yes = "$compiler_c_o"; then
+	func_append command " -o $obj"
+      fi
+
+      # Suppress compiler output if we already did a PIC compilation.
+      func_append command "$suppress_output"
+      func_show_eval_locale "$command" \
+        '$opt_dry_run || $RM $removelist; exit $EXIT_FAILURE'
+
+      if test warn = "$need_locks" &&
+	 test "X`cat $lockfile 2>/dev/null`" != "X$srcfile"; then
+	$ECHO "\
+*** ERROR, $lockfile contains:
+`cat $lockfile 2>/dev/null`
+
+but it should contain:
+$srcfile
+
+This indicates that another process is trying to use the same
+temporary object file, and libtool could not work around it because
+your compiler does not support '-c' and '-o' together.  If you
+repeat this compilation, it may succeed, by chance, but you had better
+avoid parallel builds (make -j) in this platform, or get a better
+compiler."
+
+	$opt_dry_run || $RM $removelist
+	exit $EXIT_FAILURE
+      fi
+
+      # Just move the object if needed
+      if test -n "$output_obj" && test "X$output_obj" != "X$obj"; then
+	func_show_eval '$MV "$output_obj" "$obj"' \
+	  'error=$?; $opt_dry_run || $RM $removelist; exit $error'
+      fi
+    fi
+
+    $opt_dry_run || {
+      func_write_libtool_object "$libobj" "$objdir/$objname" "$objname"
+
+      # Unlock the critical section if it was locked
+      if test no != "$need_locks"; then
+	removelist=$lockfile
+        $RM "$lockfile"
+      fi
+    }
+
+    exit $EXIT_SUCCESS
+}
+
+$opt_help || {
+  test compile = "$opt_mode" && func_mode_compile ${1+"$@"}
+}
+
+func_mode_help ()
+{
+    # We need to display help for each of the modes.
+    case $opt_mode in
+      "")
+        # Generic help is extracted from the usage comments
+        # at the start of this file.
+        func_help
+        ;;
+
+      clean)
+        $ECHO \
+"Usage: $progname [OPTION]... --mode=clean RM [RM-OPTION]... FILE...
+
+Remove files from the build directory.
+
+RM is the name of the program to use to delete files associated with each FILE
+(typically '/bin/rm').  RM-OPTIONS are options (such as '-f') to be passed
+to RM.
+
+If FILE is a libtool library, object or program, all the files associated
+with it are deleted. Otherwise, only FILE itself is deleted using RM."
+        ;;
+
+      compile)
+      $ECHO \
+"Usage: $progname [OPTION]... --mode=compile COMPILE-COMMAND... SOURCEFILE
+
+Compile a source file into a libtool library object.
+
+This mode accepts the following additional options:
+
+  -o OUTPUT-FILE    set the output file name to OUTPUT-FILE
+  -no-suppress      do not suppress compiler output for multiple passes
+  -prefer-pic       try to build PIC objects only
+  -prefer-non-pic   try to build non-PIC objects only
+  -shared           do not build a '.o' file suitable for static linking
+  -static           only build a '.o' file suitable for static linking
+  -Wc,FLAG          pass FLAG directly to the compiler
+
+COMPILE-COMMAND is a command to be used in creating a 'standard' object file
+from the given SOURCEFILE.
+
+The output file name is determined by removing the directory component from
+SOURCEFILE, then substituting the C source code suffix '.c' with the
+library object suffix, '.lo'."
+        ;;
+
+      execute)
+        $ECHO \
+"Usage: $progname [OPTION]... --mode=execute COMMAND [ARGS]...
+
+Automatically set library path, then run a program.
+
+This mode accepts the following additional options:
+
+  -dlopen FILE      add the directory containing FILE to the library path
+
+This mode sets the library path environment variable according to '-dlopen'
+flags.
+
+If any of the ARGS are libtool executable wrappers, then they are translated
+into their corresponding uninstalled binary, and any of their required library
+directories are added to the library path.
+
+Then, COMMAND is executed, with ARGS as arguments."
+        ;;
+
+      finish)
+        $ECHO \
+"Usage: $progname [OPTION]... --mode=finish [LIBDIR]...
+
+Complete the installation of libtool libraries.
+
+Each LIBDIR is a directory that contains libtool libraries.
+
+The commands that this mode executes may require superuser privileges.  Use
+the '--dry-run' option if you just want to see what would be executed."
+        ;;
+
+      install)
+        $ECHO \
+"Usage: $progname [OPTION]... --mode=install INSTALL-COMMAND...
+
+Install executables or libraries.
+
+INSTALL-COMMAND is the installation command.  The first component should be
+either the 'install' or 'cp' program.
+
+The following components of INSTALL-COMMAND are treated specially:
+
+  -inst-prefix-dir PREFIX-DIR  Use PREFIX-DIR as a staging area for installation
+
+The rest of the components are interpreted as arguments to that command (only
+BSD-compatible install options are recognized)."
+        ;;
+
+      link)
+        $ECHO \
+"Usage: $progname [OPTION]... --mode=link LINK-COMMAND...
+
+Link object files or libraries together to form another library, or to
+create an executable program.
+
+LINK-COMMAND is a command using the C compiler that you would use to create
+a program from several object files.
+
+The following components of LINK-COMMAND are treated specially:
+
+  -all-static       do not do any dynamic linking at all
+  -avoid-version    do not add a version suffix if possible
+  -bindir BINDIR    specify path to binaries directory (for systems where
+                    libraries must be found in the PATH setting at runtime)
+  -dlopen FILE      '-dlpreopen' FILE if it cannot be dlopened at runtime
+  -dlpreopen FILE   link in FILE and add its symbols to lt_preloaded_symbols
+  -export-dynamic   allow symbols from OUTPUT-FILE to be resolved with dlsym(3)
+  -export-symbols SYMFILE
+                    try to export only the symbols listed in SYMFILE
+  -export-symbols-regex REGEX
+                    try to export only the symbols matching REGEX
+  -LLIBDIR          search LIBDIR for required installed libraries
+  -lNAME            OUTPUT-FILE requires the installed library libNAME
+  -module           build a library that can dlopened
+  -no-fast-install  disable the fast-install mode
+  -no-install       link a not-installable executable
+  -no-undefined     declare that a library does not refer to external symbols
+  -o OUTPUT-FILE    create OUTPUT-FILE from the specified objects
+  -objectlist FILE  use a list of object files found in FILE to specify objects
+  -os2dllname NAME  force a short DLL name on OS/2 (no effect on other OSes)
+  -precious-files-regex REGEX
+                    don't remove output files matching REGEX
+  -release RELEASE  specify package release information
+  -rpath LIBDIR     the created library will eventually be installed in LIBDIR
+  -R[ ]LIBDIR       add LIBDIR to the runtime path of programs and libraries
+  -shared           only do dynamic linking of libtool libraries
+  -shrext SUFFIX    override the standard shared library file extension
+  -static           do not do any dynamic linking of uninstalled libtool libraries
+  -static-libtool-libs
+                    do not do any dynamic linking of libtool libraries
+  -version-info CURRENT[:REVISION[:AGE]]
+                    specify library version info [each variable defaults to 0]
+  -weak LIBNAME     declare that the target provides the LIBNAME interface
+  -Wc,FLAG
+  -Xcompiler FLAG   pass linker-specific FLAG directly to the compiler
+  -Wl,FLAG
+  -Xlinker FLAG     pass linker-specific FLAG directly to the linker
+  -XCClinker FLAG   pass link-specific FLAG to the compiler driver (CC)
+
+All other options (arguments beginning with '-') are ignored.
+
+Every other argument is treated as a filename.  Files ending in '.la' are
+treated as uninstalled libtool libraries, other files are standard or library
+object files.
+
+If the OUTPUT-FILE ends in '.la', then a libtool library is created,
+only library objects ('.lo' files) may be specified, and '-rpath' is
+required, except when creating a convenience library.
+
+If OUTPUT-FILE ends in '.a' or '.lib', then a standard library is created
+using 'ar' and 'ranlib', or on Windows using 'lib'.
+
+If OUTPUT-FILE ends in '.lo' or '.$objext', then a reloadable object file
+is created, otherwise an executable program is created."
+        ;;
+
+      uninstall)
+        $ECHO \
+"Usage: $progname [OPTION]... --mode=uninstall RM [RM-OPTION]... FILE...
+
+Remove libraries from an installation directory.
+
+RM is the name of the program to use to delete files associated with each FILE
+(typically '/bin/rm').  RM-OPTIONS are options (such as '-f') to be passed
+to RM.
+
+If FILE is a libtool library, all the files associated with it are deleted.
+Otherwise, only FILE itself is deleted using RM."
+        ;;
+
+      *)
+        func_fatal_help "invalid operation mode '$opt_mode'"
+        ;;
+    esac
+
+    echo
+    $ECHO "Try '$progname --help' for more information about other modes."
+}
+
+# Now that we've collected a possible --mode arg, show help if necessary
+if $opt_help; then
+  if test : = "$opt_help"; then
+    func_mode_help
+  else
+    {
+      func_help noexit
+      for opt_mode in compile link execute install finish uninstall clean; do
+	func_mode_help
+      done
+    } | $SED -n '1p; 2,$s/^Usage:/  or: /p'
+    {
+      func_help noexit
+      for opt_mode in compile link execute install finish uninstall clean; do
+	echo
+	func_mode_help
+      done
+    } |
+    $SED '1d
+      /^When reporting/,/^Report/{
+	H
+	d
+      }
+      $x
+      /information about other modes/d
+      /more detailed .*MODE/d
+      s/^Usage:.*--mode=\([^ ]*\) .*/Description of \1 mode:/'
+  fi
+  exit $?
+fi
+
+
+# func_mode_execute arg...
+func_mode_execute ()
+{
+    $debug_cmd
+
+    # The first argument is the command name.
+    cmd=$nonopt
+    test -z "$cmd" && \
+      func_fatal_help "you must specify a COMMAND"
+
+    # Handle -dlopen flags immediately.
+    for file in $opt_dlopen; do
+      test -f "$file" \
+	|| func_fatal_help "'$file' is not a file"
+
+      dir=
+      case $file in
+      *.la)
+	func_resolve_sysroot "$file"
+	file=$func_resolve_sysroot_result
+
+	# Check to see that this really is a libtool archive.
+	func_lalib_unsafe_p "$file" \
+	  || func_fatal_help "'$lib' is not a valid libtool archive"
+
+	# Read the libtool library.
+	dlname=
+	library_names=
+	func_source "$file"
+
+	# Skip this library if it cannot be dlopened.
+	if test -z "$dlname"; then
+	  # Warn if it was a shared library.
+	  test -n "$library_names" && \
+	    func_warning "'$file' was not linked with '-export-dynamic'"
+	  continue
+	fi
+
+	func_dirname "$file" "" "."
+	dir=$func_dirname_result
+
+	if test -f "$dir/$objdir/$dlname"; then
+	  func_append dir "/$objdir"
+	else
+	  if test ! -f "$dir/$dlname"; then
+	    func_fatal_error "cannot find '$dlname' in '$dir' or '$dir/$objdir'"
+	  fi
+	fi
+	;;
+
+      *.lo)
+	# Just add the directory containing the .lo file.
+	func_dirname "$file" "" "."
+	dir=$func_dirname_result
+	;;
+
+      *)
+	func_warning "'-dlopen' is ignored for non-libtool libraries and objects"
+	continue
+	;;
+      esac
+
+      # Get the absolute pathname.
+      absdir=`cd "$dir" && pwd`
+      test -n "$absdir" && dir=$absdir
+
+      # Now add the directory to shlibpath_var.
+      if eval "test -z \"\$$shlibpath_var\""; then
+	eval "$shlibpath_var=\"\$dir\""
+      else
+	eval "$shlibpath_var=\"\$dir:\$$shlibpath_var\""
+      fi
+    done
+
+    # This variable tells wrapper scripts just to set shlibpath_var
+    # rather than running their programs.
+    libtool_execute_magic=$magic
+
+    # Check if any of the arguments is a wrapper script.
+    args=
+    for file
+    do
+      case $file in
+      -* | *.la | *.lo ) ;;
+      *)
+	# Do a test to see if this is really a libtool program.
+	if func_ltwrapper_script_p "$file"; then
+	  func_source "$file"
+	  # Transform arg to wrapped name.
+	  file=$progdir/$program
+	elif func_ltwrapper_executable_p "$file"; then
+	  func_ltwrapper_scriptname "$file"
+	  func_source "$func_ltwrapper_scriptname_result"
+	  # Transform arg to wrapped name.
+	  file=$progdir/$program
+	fi
+	;;
+      esac
+      # Quote arguments (to preserve shell metacharacters).
+      func_append_quoted args "$file"
+    done
+
+    if $opt_dry_run; then
+      # Display what would be done.
+      if test -n "$shlibpath_var"; then
+	eval "\$ECHO \"\$shlibpath_var=\$$shlibpath_var\""
+	echo "export $shlibpath_var"
+      fi
+      $ECHO "$cmd$args"
+      exit $EXIT_SUCCESS
+    else
+      if test -n "$shlibpath_var"; then
+	# Export the shlibpath_var.
+	eval "export $shlibpath_var"
+      fi
+
+      # Restore saved environment variables
+      for lt_var in LANG LANGUAGE LC_ALL LC_CTYPE LC_COLLATE LC_MESSAGES
+      do
+	eval "if test \"\${save_$lt_var+set}\" = set; then
+                $lt_var=\$save_$lt_var; export $lt_var
+	      else
+		$lt_unset $lt_var
+	      fi"
+      done
+
+      # Now prepare to actually exec the command.
+      exec_cmd=\$cmd$args
+    fi
+}
+
+test execute = "$opt_mode" && func_mode_execute ${1+"$@"}
+
+
+# func_mode_finish arg...
+func_mode_finish ()
+{
+    $debug_cmd
+
+    libs=
+    libdirs=
+    admincmds=
+
+    for opt in "$nonopt" ${1+"$@"}
+    do
+      if test -d "$opt"; then
+	func_append libdirs " $opt"
+
+      elif test -f "$opt"; then
+	if func_lalib_unsafe_p "$opt"; then
+	  func_append libs " $opt"
+	else
+	  func_warning "'$opt' is not a valid libtool archive"
+	fi
+
+      else
+	func_fatal_error "invalid argument '$opt'"
+      fi
+    done
+
+    if test -n "$libs"; then
+      if test -n "$lt_sysroot"; then
+        sysroot_regex=`$ECHO "$lt_sysroot" | $SED "$sed_make_literal_regex"`
+        sysroot_cmd="s/\([ ']\)$sysroot_regex/\1/g;"
+      else
+        sysroot_cmd=
+      fi
+
+      # Remove sysroot references
+      if $opt_dry_run; then
+        for lib in $libs; do
+          echo "removing references to $lt_sysroot and '=' prefixes from $lib"
+        done
+      else
+        tmpdir=`func_mktempdir`
+        for lib in $libs; do
+	  $SED -e "$sysroot_cmd s/\([ ']-[LR]\)=/\1/g; s/\([ ']\)=/\1/g" $lib \
+	    > $tmpdir/tmp-la
+	  mv -f $tmpdir/tmp-la $lib
+	done
+        ${RM}r "$tmpdir"
+      fi
+    fi
+
+    if test -n "$finish_cmds$finish_eval" && test -n "$libdirs"; then
+      for libdir in $libdirs; do
+	if test -n "$finish_cmds"; then
+	  # Do each command in the finish commands.
+	  func_execute_cmds "$finish_cmds" 'admincmds="$admincmds
+'"$cmd"'"'
+	fi
+	if test -n "$finish_eval"; then
+	  # Do the single finish_eval.
+	  eval cmds=\"$finish_eval\"
+	  $opt_dry_run || eval "$cmds" || func_append admincmds "
+       $cmds"
+	fi
+      done
+    fi
+
+    # Exit here if they wanted silent mode.
+    $opt_quiet && exit $EXIT_SUCCESS
+
+    if test -n "$finish_cmds$finish_eval" && test -n "$libdirs"; then
+      echo "----------------------------------------------------------------------"
+      echo "Libraries have been installed in:"
+      for libdir in $libdirs; do
+	$ECHO "   $libdir"
+      done
+      echo
+      echo "If you ever happen to want to link against installed libraries"
+      echo "in a given directory, LIBDIR, you must either use libtool, and"
+      echo "specify the full pathname of the library, or use the '-LLIBDIR'"
+      echo "flag during linking and do at least one of the following:"
+      if test -n "$shlibpath_var"; then
+	echo "   - add LIBDIR to the '$shlibpath_var' environment variable"
+	echo "     during execution"
+      fi
+      if test -n "$runpath_var"; then
+	echo "   - add LIBDIR to the '$runpath_var' environment variable"
+	echo "     during linking"
+      fi
+      if test -n "$hardcode_libdir_flag_spec"; then
+	libdir=LIBDIR
+	eval flag=\"$hardcode_libdir_flag_spec\"
+
+	$ECHO "   - use the '$flag' linker flag"
+      fi
+      if test -n "$admincmds"; then
+	$ECHO "   - have your system administrator run these commands:$admincmds"
+      fi
+      if test -f /etc/ld.so.conf; then
+	echo "   - have your system administrator add LIBDIR to '/etc/ld.so.conf'"
+      fi
+      echo
+
+      echo "See any operating system documentation about shared libraries for"
+      case $host in
+	solaris2.[6789]|solaris2.1[0-9])
+	  echo "more information, such as the ld(1), crle(1) and ld.so(8) manual"
+	  echo "pages."
+	  ;;
+	*)
+	  echo "more information, such as the ld(1) and ld.so(8) manual pages."
+	  ;;
+      esac
+      echo "----------------------------------------------------------------------"
+    fi
+    exit $EXIT_SUCCESS
+}
+
+test finish = "$opt_mode" && func_mode_finish ${1+"$@"}
+
+
+# func_mode_install arg...
+func_mode_install ()
+{
+    $debug_cmd
+
+    # There may be an optional sh(1) argument at the beginning of
+    # install_prog (especially on Windows NT).
+    if test "$SHELL" = "$nonopt" || test /bin/sh = "$nonopt" ||
+       # Allow the use of GNU shtool's install command.
+       case $nonopt in *shtool*) :;; *) false;; esac
+    then
+      # Aesthetically quote it.
+      func_quote_for_eval "$nonopt"
+      install_prog="$func_quote_for_eval_result "
+      arg=$1
+      shift
+    else
+      install_prog=
+      arg=$nonopt
+    fi
+
+    # The real first argument should be the name of the installation program.
+    # Aesthetically quote it.
+    func_quote_for_eval "$arg"
+    func_append install_prog "$func_quote_for_eval_result"
+    install_shared_prog=$install_prog
+    case " $install_prog " in
+      *[\\\ /]cp\ *) install_cp=: ;;
+      *) install_cp=false ;;
+    esac
+
+    # We need to accept at least all the BSD install flags.
+    dest=
+    files=
+    opts=
+    prev=
+    install_type=
+    isdir=false
+    stripme=
+    no_mode=:
+    for arg
+    do
+      arg2=
+      if test -n "$dest"; then
+	func_append files " $dest"
+	dest=$arg
+	continue
+      fi
+
+      case $arg in
+      -d) isdir=: ;;
+      -f)
+	if $install_cp; then :; else
+	  prev=$arg
+	fi
+	;;
+      -g | -m | -o)
+	prev=$arg
+	;;
+      -s)
+	stripme=" -s"
+	continue
+	;;
+      -*)
+	;;
+      *)
+	# If the previous option needed an argument, then skip it.
+	if test -n "$prev"; then
+	  if test X-m = "X$prev" && test -n "$install_override_mode"; then
+	    arg2=$install_override_mode
+	    no_mode=false
+	  fi
+	  prev=
+	else
+	  dest=$arg
+	  continue
+	fi
+	;;
+      esac
+
+      # Aesthetically quote the argument.
+      func_quote_for_eval "$arg"
+      func_append install_prog " $func_quote_for_eval_result"
+      if test -n "$arg2"; then
+	func_quote_for_eval "$arg2"
+      fi
+      func_append install_shared_prog " $func_quote_for_eval_result"
+    done
+
+    test -z "$install_prog" && \
+      func_fatal_help "you must specify an install program"
+
+    test -n "$prev" && \
+      func_fatal_help "the '$prev' option requires an argument"
+
+    if test -n "$install_override_mode" && $no_mode; then
+      if $install_cp; then :; else
+	func_quote_for_eval "$install_override_mode"
+	func_append install_shared_prog " -m $func_quote_for_eval_result"
+      fi
+    fi
+
+    if test -z "$files"; then
+      if test -z "$dest"; then
+	func_fatal_help "no file or destination specified"
+      else
+	func_fatal_help "you must specify a destination"
+      fi
+    fi
+
+    # Strip any trailing slash from the destination.
+    func_stripname '' '/' "$dest"
+    dest=$func_stripname_result
+
+    # Check to see that the destination is a directory.
+    test -d "$dest" && isdir=:
+    if $isdir; then
+      destdir=$dest
+      destname=
+    else
+      func_dirname_and_basename "$dest" "" "."
+      destdir=$func_dirname_result
+      destname=$func_basename_result
+
+      # Not a directory, so check to see that there is only one file specified.
+      set dummy $files; shift
+      test "$#" -gt 1 && \
+	func_fatal_help "'$dest' is not a directory"
+    fi
+    case $destdir in
+    [\\/]* | [A-Za-z]:[\\/]*) ;;
+    *)
+      for file in $files; do
+	case $file in
+	*.lo) ;;
+	*)
+	  func_fatal_help "'$destdir' must be an absolute directory name"
+	  ;;
+	esac
+      done
+      ;;
+    esac
+
+    # This variable tells wrapper scripts just to set variables rather
+    # than running their programs.
+    libtool_install_magic=$magic
+
+    staticlibs=
+    future_libdirs=
+    current_libdirs=
+    for file in $files; do
+
+      # Do each installation.
+      case $file in
+      *.$libext)
+	# Do the static libraries later.
+	func_append staticlibs " $file"
+	;;
+
+      *.la)
+	func_resolve_sysroot "$file"
+	file=$func_resolve_sysroot_result
+
+	# Check to see that this really is a libtool archive.
+	func_lalib_unsafe_p "$file" \
+	  || func_fatal_help "'$file' is not a valid libtool archive"
+
+	library_names=
+	old_library=
+	relink_command=
+	func_source "$file"
+
+	# Add the libdir to current_libdirs if it is the destination.
+	if test "X$destdir" = "X$libdir"; then
+	  case "$current_libdirs " in
+	  *" $libdir "*) ;;
+	  *) func_append current_libdirs " $libdir" ;;
+	  esac
+	else
+	  # Note the libdir as a future libdir.
+	  case "$future_libdirs " in
+	  *" $libdir "*) ;;
+	  *) func_append future_libdirs " $libdir" ;;
+	  esac
+	fi
+
+	func_dirname "$file" "/" ""
+	dir=$func_dirname_result
+	func_append dir "$objdir"
+
+	if test -n "$relink_command"; then
+	  # Determine the prefix the user has applied to our future dir.
+	  inst_prefix_dir=`$ECHO "$destdir" | $SED -e "s%$libdir\$%%"`
+
+	  # Don't allow the user to place us outside of our expected
+	  # location b/c this prevents finding dependent libraries that
+	  # are installed to the same prefix.
+	  # At present, this check doesn't affect windows .dll's that
+	  # are installed into $libdir/../bin (currently, that works fine)
+	  # but it's something to keep an eye on.
+	  test "$inst_prefix_dir" = "$destdir" && \
+	    func_fatal_error "error: cannot install '$file' to a directory not ending in $libdir"
+
+	  if test -n "$inst_prefix_dir"; then
+	    # Stick the inst_prefix_dir data into the link command.
+	    relink_command=`$ECHO "$relink_command" | $SED "s%@inst_prefix_dir@%-inst-prefix-dir $inst_prefix_dir%"`
+	  else
+	    relink_command=`$ECHO "$relink_command" | $SED "s%@inst_prefix_dir@%%"`
+	  fi
+
+	  func_warning "relinking '$file'"
+	  func_show_eval "$relink_command" \
+	    'func_fatal_error "error: relink '\''$file'\'' with the above command before installing it"'
+	fi
+
+	# See the names of the shared library.
+	set dummy $library_names; shift
+	if test -n "$1"; then
+	  realname=$1
+	  shift
+
+	  srcname=$realname
+	  test -n "$relink_command" && srcname=${realname}T
+
+	  # Install the shared library and build the symlinks.
+	  func_show_eval "$install_shared_prog $dir/$srcname $destdir/$realname" \
+	      'exit $?'
+	  tstripme=$stripme
+	  case $host_os in
+	  cygwin* | mingw* | pw32* | cegcc*)
+	    case $realname in
+	    *.dll.a)
+	      tstripme=
+	      ;;
+	    esac
+	    ;;
+	  os2*)
+	    case $realname in
+	    *_dll.a)
+	      tstripme=
+	      ;;
+	    esac
+	    ;;
+	  esac
+	  if test -n "$tstripme" && test -n "$striplib"; then
+	    func_show_eval "$striplib $destdir/$realname" 'exit $?'
+	  fi
+
+	  if test "$#" -gt 0; then
+	    # Delete the old symlinks, and create new ones.
+	    # Try 'ln -sf' first, because the 'ln' binary might depend on
+	    # the symlink we replace!  Solaris /bin/ln does not understand -f,
+	    # so we also need to try rm && ln -s.
+	    for linkname
+	    do
+	      test "$linkname" != "$realname" \
+		&& func_show_eval "(cd $destdir && { $LN_S -f $realname $linkname || { $RM $linkname && $LN_S $realname $linkname; }; })"
+	    done
+	  fi
+
+	  # Do each command in the postinstall commands.
+	  lib=$destdir/$realname
+	  func_execute_cmds "$postinstall_cmds" 'exit $?'
+	fi
+
+	# Install the pseudo-library for information purposes.
+	func_basename "$file"
+	name=$func_basename_result
+	instname=$dir/${name}i
+	func_show_eval "$install_prog $instname $destdir/$name" 'exit $?'
+
+	# Maybe install the static library, too.
+	test -n "$old_library" && func_append staticlibs " $dir/$old_library"
+	;;
+
+      *.lo)
+	# Install (i.e. copy) a libtool object.
+
+	# Figure out destination file name, if it wasn't already specified.
+	if test -n "$destname"; then
+	  destfile=$destdir/$destname
+	else
+	  func_basename "$file"
+	  destfile=$func_basename_result
+	  destfile=$destdir/$destfile
+	fi
+
+	# Deduce the name of the destination old-style object file.
+	case $destfile in
+	*.lo)
+	  func_lo2o "$destfile"
+	  staticdest=$func_lo2o_result
+	  ;;
+	*.$objext)
+	  staticdest=$destfile
+	  destfile=
+	  ;;
+	*)
+	  func_fatal_help "cannot copy a libtool object to '$destfile'"
+	  ;;
+	esac
+
+	# Install the libtool object if requested.
+	test -n "$destfile" && \
+	  func_show_eval "$install_prog $file $destfile" 'exit $?'
+
+	# Install the old object if enabled.
+	if test yes = "$build_old_libs"; then
+	  # Deduce the name of the old-style object file.
+	  func_lo2o "$file"
+	  staticobj=$func_lo2o_result
+	  func_show_eval "$install_prog \$staticobj \$staticdest" 'exit $?'
+	fi
+	exit $EXIT_SUCCESS
+	;;
+
+      *)
+	# Figure out destination file name, if it wasn't already specified.
+	if test -n "$destname"; then
+	  destfile=$destdir/$destname
+	else
+	  func_basename "$file"
+	  destfile=$func_basename_result
+	  destfile=$destdir/$destfile
+	fi
+
+	# If the file is missing, and there is a .exe on the end, strip it
+	# because it is most likely a libtool script we actually want to
+	# install
+	stripped_ext=
+	case $file in
+	  *.exe)
+	    if test ! -f "$file"; then
+	      func_stripname '' '.exe' "$file"
+	      file=$func_stripname_result
+	      stripped_ext=.exe
+	    fi
+	    ;;
+	esac
+
+	# Do a test to see if this is really a libtool program.
+	case $host in
+	*cygwin* | *mingw*)
+	    if func_ltwrapper_executable_p "$file"; then
+	      func_ltwrapper_scriptname "$file"
+	      wrapper=$func_ltwrapper_scriptname_result
+	    else
+	      func_stripname '' '.exe' "$file"
+	      wrapper=$func_stripname_result
+	    fi
+	    ;;
+	*)
+	    wrapper=$file
+	    ;;
+	esac
+	if func_ltwrapper_script_p "$wrapper"; then
+	  notinst_deplibs=
+	  relink_command=
+
+	  func_source "$wrapper"
+
+	  # Check the variables that should have been set.
+	  test -z "$generated_by_libtool_version" && \
+	    func_fatal_error "invalid libtool wrapper script '$wrapper'"
+
+	  finalize=:
+	  for lib in $notinst_deplibs; do
+	    # Check to see that each library is installed.
+	    libdir=
+	    if test -f "$lib"; then
+	      func_source "$lib"
+	    fi
+	    libfile=$libdir/`$ECHO "$lib" | $SED 's%^.*/%%g'`
+	    if test -n "$libdir" && test ! -f "$libfile"; then
+	      func_warning "'$lib' has not been installed in '$libdir'"
+	      finalize=false
+	    fi
+	  done
+
+	  relink_command=
+	  func_source "$wrapper"
+
+	  outputname=
+	  if test no = "$fast_install" && test -n "$relink_command"; then
+	    $opt_dry_run || {
+	      if $finalize; then
+	        tmpdir=`func_mktempdir`
+		func_basename "$file$stripped_ext"
+		file=$func_basename_result
+	        outputname=$tmpdir/$file
+	        # Replace the output file specification.
+	        relink_command=`$ECHO "$relink_command" | $SED 's%@OUTPUT@%'"$outputname"'%g'`
+
+	        $opt_quiet || {
+	          func_quote_for_expand "$relink_command"
+		  eval "func_echo $func_quote_for_expand_result"
+	        }
+	        if eval "$relink_command"; then :
+	          else
+		  func_error "error: relink '$file' with the above command before installing it"
+		  $opt_dry_run || ${RM}r "$tmpdir"
+		  continue
+	        fi
+	        file=$outputname
+	      else
+	        func_warning "cannot relink '$file'"
+	      fi
+	    }
+	  else
+	    # Install the binary that we compiled earlier.
+	    file=`$ECHO "$file$stripped_ext" | $SED "s%\([^/]*\)$%$objdir/\1%"`
+	  fi
+	fi
+
+	# remove .exe since cygwin /usr/bin/install will append another
+	# one anyway
+	case $install_prog,$host in
+	*/usr/bin/install*,*cygwin*)
+	  case $file:$destfile in
+	  *.exe:*.exe)
+	    # this is ok
+	    ;;
+	  *.exe:*)
+	    destfile=$destfile.exe
+	    ;;
+	  *:*.exe)
+	    func_stripname '' '.exe' "$destfile"
+	    destfile=$func_stripname_result
+	    ;;
+	  esac
+	  ;;
+	esac
+	func_show_eval "$install_prog\$stripme \$file \$destfile" 'exit $?'
+	$opt_dry_run || if test -n "$outputname"; then
+	  ${RM}r "$tmpdir"
+	fi
+	;;
+      esac
+    done
+
+    for file in $staticlibs; do
+      func_basename "$file"
+      name=$func_basename_result
+
+      # Set up the ranlib parameters.
+      oldlib=$destdir/$name
+      func_to_tool_file "$oldlib" func_convert_file_msys_to_w32
+      tool_oldlib=$func_to_tool_file_result
+
+      func_show_eval "$install_prog \$file \$oldlib" 'exit $?'
+
+      if test -n "$stripme" && test -n "$old_striplib"; then
+	func_show_eval "$old_striplib $tool_oldlib" 'exit $?'
+      fi
+
+      # Do each command in the postinstall commands.
+      func_execute_cmds "$old_postinstall_cmds" 'exit $?'
+    done
+
+    test -n "$future_libdirs" && \
+      func_warning "remember to run '$progname --finish$future_libdirs'"
+
+    if test -n "$current_libdirs"; then
+      # Maybe just do a dry run.
+      $opt_dry_run && current_libdirs=" -n$current_libdirs"
+      exec_cmd='$SHELL "$progpath" $preserve_args --finish$current_libdirs'
+    else
+      exit $EXIT_SUCCESS
+    fi
+}
+
+test install = "$opt_mode" && func_mode_install ${1+"$@"}
+
+
+# func_generate_dlsyms outputname originator pic_p
+# Extract symbols from dlprefiles and create ${outputname}S.o with
+# a dlpreopen symbol table.
+func_generate_dlsyms ()
+{
+    $debug_cmd
+
+    my_outputname=$1
+    my_originator=$2
+    my_pic_p=${3-false}
+    my_prefix=`$ECHO "$my_originator" | $SED 's%[^a-zA-Z0-9]%_%g'`
+    my_dlsyms=
+
+    if test -n "$dlfiles$dlprefiles" || test no != "$dlself"; then
+      if test -n "$NM" && test -n "$global_symbol_pipe"; then
+	my_dlsyms=${my_outputname}S.c
+      else
+	func_error "not configured to extract global symbols from dlpreopened files"
+      fi
+    fi
+
+    if test -n "$my_dlsyms"; then
+      case $my_dlsyms in
+      "") ;;
+      *.c)
+	# Discover the nlist of each of the dlfiles.
+	nlist=$output_objdir/$my_outputname.nm
+
+	func_show_eval "$RM $nlist ${nlist}S ${nlist}T"
+
+	# Parse the name list into a source file.
+	func_verbose "creating $output_objdir/$my_dlsyms"
+
+	$opt_dry_run || $ECHO > "$output_objdir/$my_dlsyms" "\
+/* $my_dlsyms - symbol resolution table for '$my_outputname' dlsym emulation. */
+/* Generated by $PROGRAM (GNU $PACKAGE) $VERSION */
+
+#ifdef __cplusplus
+extern \"C\" {
+#endif
+
+#if defined __GNUC__ && (((__GNUC__ == 4) && (__GNUC_MINOR__ >= 4)) || (__GNUC__ > 4))
+#pragma GCC diagnostic ignored \"-Wstrict-prototypes\"
+#endif
+
+/* Keep this code in sync between libtool.m4, ltmain, lt_system.h, and tests.  */
+#if defined _WIN32 || defined __CYGWIN__ || defined _WIN32_WCE
+/* DATA imports from DLLs on WIN32 can't be const, because runtime
+   relocations are performed -- see ld's documentation on pseudo-relocs.  */
+# define LT_DLSYM_CONST
+#elif defined __osf__
+/* This system does not cope well with relocations in const data.  */
+# define LT_DLSYM_CONST
+#else
+# define LT_DLSYM_CONST const
+#endif
+
+#define STREQ(s1, s2) (strcmp ((s1), (s2)) == 0)
+
+/* External symbol declarations for the compiler. */\
+"
+
+	if test yes = "$dlself"; then
+	  func_verbose "generating symbol list for '$output'"
+
+	  $opt_dry_run || echo ': @PROGRAM@ ' > "$nlist"
+
+	  # Add our own program objects to the symbol list.
+	  progfiles=`$ECHO "$objs$old_deplibs" | $SP2NL | $SED "$lo2o" | $NL2SP`
+	  for progfile in $progfiles; do
+	    func_to_tool_file "$progfile" func_convert_file_msys_to_w32
+	    func_verbose "extracting global C symbols from '$func_to_tool_file_result'"
+	    $opt_dry_run || eval "$NM $func_to_tool_file_result | $global_symbol_pipe >> '$nlist'"
+	  done
+
+	  if test -n "$exclude_expsyms"; then
+	    $opt_dry_run || {
+	      eval '$EGREP -v " ($exclude_expsyms)$" "$nlist" > "$nlist"T'
+	      eval '$MV "$nlist"T "$nlist"'
+	    }
+	  fi
+
+	  if test -n "$export_symbols_regex"; then
+	    $opt_dry_run || {
+	      eval '$EGREP -e "$export_symbols_regex" "$nlist" > "$nlist"T'
+	      eval '$MV "$nlist"T "$nlist"'
+	    }
+	  fi
+
+	  # Prepare the list of exported symbols
+	  if test -z "$export_symbols"; then
+	    export_symbols=$output_objdir/$outputname.exp
+	    $opt_dry_run || {
+	      $RM $export_symbols
+	      eval "$SED -n -e '/^: @PROGRAM@ $/d' -e 's/^.* \(.*\)$/\1/p' "'< "$nlist" > "$export_symbols"'
+	      case $host in
+	      *cygwin* | *mingw* | *cegcc* )
+                eval "echo EXPORTS "'> "$output_objdir/$outputname.def"'
+                eval 'cat "$export_symbols" >> "$output_objdir/$outputname.def"'
+	        ;;
+	      esac
+	    }
+	  else
+	    $opt_dry_run || {
+	      eval "$SED -e 's/\([].[*^$]\)/\\\\\1/g' -e 's/^/ /' -e 's/$/$/'"' < "$export_symbols" > "$output_objdir/$outputname.exp"'
+	      eval '$GREP -f "$output_objdir/$outputname.exp" < "$nlist" > "$nlist"T'
+	      eval '$MV "$nlist"T "$nlist"'
+	      case $host in
+	        *cygwin* | *mingw* | *cegcc* )
+	          eval "echo EXPORTS "'> "$output_objdir/$outputname.def"'
+	          eval 'cat "$nlist" >> "$output_objdir/$outputname.def"'
+	          ;;
+	      esac
+	    }
+	  fi
+	fi
+
+	for dlprefile in $dlprefiles; do
+	  func_verbose "extracting global C symbols from '$dlprefile'"
+	  func_basename "$dlprefile"
+	  name=$func_basename_result
+          case $host in
+	    *cygwin* | *mingw* | *cegcc* )
+	      # if an import library, we need to obtain dlname
+	      if func_win32_import_lib_p "$dlprefile"; then
+	        func_tr_sh "$dlprefile"
+	        eval "curr_lafile=\$libfile_$func_tr_sh_result"
+	        dlprefile_dlbasename=
+	        if test -n "$curr_lafile" && func_lalib_p "$curr_lafile"; then
+	          # Use subshell, to avoid clobbering current variable values
+	          dlprefile_dlname=`source "$curr_lafile" && echo "$dlname"`
+	          if test -n "$dlprefile_dlname"; then
+	            func_basename "$dlprefile_dlname"
+	            dlprefile_dlbasename=$func_basename_result
+	          else
+	            # no lafile. user explicitly requested -dlpreopen <import library>.
+	            $sharedlib_from_linklib_cmd "$dlprefile"
+	            dlprefile_dlbasename=$sharedlib_from_linklib_result
+	          fi
+	        fi
+	        $opt_dry_run || {
+	          if test -n "$dlprefile_dlbasename"; then
+	            eval '$ECHO ": $dlprefile_dlbasename" >> "$nlist"'
+	          else
+	            func_warning "Could not compute DLL name from $name"
+	            eval '$ECHO ": $name " >> "$nlist"'
+	          fi
+	          func_to_tool_file "$dlprefile" func_convert_file_msys_to_w32
+	          eval "$NM \"$func_to_tool_file_result\" 2>/dev/null | $global_symbol_pipe |
+	            $SED -e '/I __imp/d' -e 's/I __nm_/D /;s/_nm__//' >> '$nlist'"
+	        }
+	      else # not an import lib
+	        $opt_dry_run || {
+	          eval '$ECHO ": $name " >> "$nlist"'
+	          func_to_tool_file "$dlprefile" func_convert_file_msys_to_w32
+	          eval "$NM \"$func_to_tool_file_result\" 2>/dev/null | $global_symbol_pipe >> '$nlist'"
+	        }
+	      fi
+	    ;;
+	    *)
+	      $opt_dry_run || {
+	        eval '$ECHO ": $name " >> "$nlist"'
+	        func_to_tool_file "$dlprefile" func_convert_file_msys_to_w32
+	        eval "$NM \"$func_to_tool_file_result\" 2>/dev/null | $global_symbol_pipe >> '$nlist'"
+	      }
+	    ;;
+          esac
+	done
+
+	$opt_dry_run || {
+	  # Make sure we have at least an empty file.
+	  test -f "$nlist" || : > "$nlist"
+
+	  if test -n "$exclude_expsyms"; then
+	    $EGREP -v " ($exclude_expsyms)$" "$nlist" > "$nlist"T
+	    $MV "$nlist"T "$nlist"
+	  fi
+
+	  # Try sorting and uniquifying the output.
+	  if $GREP -v "^: " < "$nlist" |
+	      if sort -k 3 </dev/null >/dev/null 2>&1; then
+		sort -k 3
+	      else
+		sort +2
+	      fi |
+	      uniq > "$nlist"S; then
+	    :
+	  else
+	    $GREP -v "^: " < "$nlist" > "$nlist"S
+	  fi
+
+	  if test -f "$nlist"S; then
+	    eval "$global_symbol_to_cdecl"' < "$nlist"S >> "$output_objdir/$my_dlsyms"'
+	  else
+	    echo '/* NONE */' >> "$output_objdir/$my_dlsyms"
+	  fi
+
+	  func_show_eval '$RM "${nlist}I"'
+	  if test -n "$global_symbol_to_import"; then
+	    eval "$global_symbol_to_import"' < "$nlist"S > "$nlist"I'
+	  fi
+
+	  echo >> "$output_objdir/$my_dlsyms" "\
+
+/* The mapping between symbol names and symbols.  */
+typedef struct {
+  const char *name;
+  void *address;
+} lt_dlsymlist;
+extern LT_DLSYM_CONST lt_dlsymlist
+lt_${my_prefix}_LTX_preloaded_symbols[];\
+"
+
+	  if test -s "$nlist"I; then
+	    echo >> "$output_objdir/$my_dlsyms" "\
+static void lt_syminit(void)
+{
+  LT_DLSYM_CONST lt_dlsymlist *symbol = lt_${my_prefix}_LTX_preloaded_symbols;
+  for (; symbol->name; ++symbol)
+    {"
+	    $SED 's/.*/      if (STREQ (symbol->name, \"&\")) symbol->address = (void *) \&&;/' < "$nlist"I >> "$output_objdir/$my_dlsyms"
+	    echo >> "$output_objdir/$my_dlsyms" "\
+    }
+}"
+	  fi
+	  echo >> "$output_objdir/$my_dlsyms" "\
+LT_DLSYM_CONST lt_dlsymlist
+lt_${my_prefix}_LTX_preloaded_symbols[] =
+{ {\"$my_originator\", (void *) 0},"
+
+	  if test -s "$nlist"I; then
+	    echo >> "$output_objdir/$my_dlsyms" "\
+  {\"@INIT@\", (void *) &lt_syminit},"
+	  fi
+
+	  case $need_lib_prefix in
+	  no)
+	    eval "$global_symbol_to_c_name_address" < "$nlist" >> "$output_objdir/$my_dlsyms"
+	    ;;
+	  *)
+	    eval "$global_symbol_to_c_name_address_lib_prefix" < "$nlist" >> "$output_objdir/$my_dlsyms"
+	    ;;
+	  esac
+	  echo >> "$output_objdir/$my_dlsyms" "\
+  {0, (void *) 0}
+};
+
+/* This works around a problem in FreeBSD linker */
+#ifdef FREEBSD_WORKAROUND
+static const void *lt_preloaded_setup() {
+  return lt_${my_prefix}_LTX_preloaded_symbols;
+}
+#endif
+
+#ifdef __cplusplus
+}
+#endif\
+"
+	} # !$opt_dry_run
+
+	pic_flag_for_symtable=
+	case "$compile_command " in
+	*" -static "*) ;;
+	*)
+	  case $host in
+	  # compiling the symbol table file with pic_flag works around
+	  # a FreeBSD bug that causes programs to crash when -lm is
+	  # linked before any other PIC object.  But we must not use
+	  # pic_flag when linking with -static.  The problem exists in
+	  # FreeBSD 2.2.6 and is fixed in FreeBSD 3.1.
+	  *-*-freebsd2.*|*-*-freebsd3.0*|*-*-freebsdelf3.0*)
+	    pic_flag_for_symtable=" $pic_flag -DFREEBSD_WORKAROUND" ;;
+	  *-*-hpux*)
+	    pic_flag_for_symtable=" $pic_flag"  ;;
+	  *)
+	    $my_pic_p && pic_flag_for_symtable=" $pic_flag"
+	    ;;
+	  esac
+	  ;;
+	esac
+	symtab_cflags=
+	for arg in $LTCFLAGS; do
+	  case $arg in
+	  -pie | -fpie | -fPIE) ;;
+	  *) func_append symtab_cflags " $arg" ;;
+	  esac
+	done
+
+	# Now compile the dynamic symbol file.
+	func_show_eval '(cd $output_objdir && $LTCC$symtab_cflags -c$no_builtin_flag$pic_flag_for_symtable "$my_dlsyms")' 'exit $?'
+
+	# Clean up the generated files.
+	func_show_eval '$RM "$output_objdir/$my_dlsyms" "$nlist" "${nlist}S" "${nlist}T" "${nlist}I"'
+
+	# Transform the symbol file into the correct name.
+	symfileobj=$output_objdir/${my_outputname}S.$objext
+	case $host in
+	*cygwin* | *mingw* | *cegcc* )
+	  if test -f "$output_objdir/$my_outputname.def"; then
+	    compile_command=`$ECHO "$compile_command" | $SED "s%@SYMFILE@%$output_objdir/$my_outputname.def $symfileobj%"`
+	    finalize_command=`$ECHO "$finalize_command" | $SED "s%@SYMFILE@%$output_objdir/$my_outputname.def $symfileobj%"`
+	  else
+	    compile_command=`$ECHO "$compile_command" | $SED "s%@SYMFILE@%$symfileobj%"`
+	    finalize_command=`$ECHO "$finalize_command" | $SED "s%@SYMFILE@%$symfileobj%"`
+	  fi
+	  ;;
+	*)
+	  compile_command=`$ECHO "$compile_command" | $SED "s%@SYMFILE@%$symfileobj%"`
+	  finalize_command=`$ECHO "$finalize_command" | $SED "s%@SYMFILE@%$symfileobj%"`
+	  ;;
+	esac
+	;;
+      *)
+	func_fatal_error "unknown suffix for '$my_dlsyms'"
+	;;
+      esac
+    else
+      # We keep going just in case the user didn't refer to
+      # lt_preloaded_symbols.  The linker will fail if global_symbol_pipe
+      # really was required.
+
+      # Nullify the symbol file.
+      compile_command=`$ECHO "$compile_command" | $SED "s% @SYMFILE@%%"`
+      finalize_command=`$ECHO "$finalize_command" | $SED "s% @SYMFILE@%%"`
+    fi
+}
+
+# func_cygming_gnu_implib_p ARG
+# This predicate returns with zero status (TRUE) if
+# ARG is a GNU/binutils-style import library. Returns
+# with nonzero status (FALSE) otherwise.
+func_cygming_gnu_implib_p ()
+{
+  $debug_cmd
+
+  func_to_tool_file "$1" func_convert_file_msys_to_w32
+  func_cygming_gnu_implib_tmp=`$NM "$func_to_tool_file_result" | eval "$global_symbol_pipe" | $EGREP ' (_head_[A-Za-z0-9_]+_[ad]l*|[A-Za-z0-9_]+_[ad]l*_iname)$'`
+  test -n "$func_cygming_gnu_implib_tmp"
+}
+
+# func_cygming_ms_implib_p ARG
+# This predicate returns with zero status (TRUE) if
+# ARG is an MS-style import library. Returns
+# with nonzero status (FALSE) otherwise.
+func_cygming_ms_implib_p ()
+{
+  $debug_cmd
+
+  func_to_tool_file "$1" func_convert_file_msys_to_w32
+  func_cygming_ms_implib_tmp=`$NM "$func_to_tool_file_result" | eval "$global_symbol_pipe" | $GREP '_NULL_IMPORT_DESCRIPTOR'`
+  test -n "$func_cygming_ms_implib_tmp"
+}
+
+# func_win32_libid arg
+# return the library type of file 'arg'
+#
+# Need a lot of goo to handle *both* DLLs and import libs
+# Has to be a shell function in order to 'eat' the argument
+# that is supplied when $file_magic_command is called.
+# Despite the name, also deal with 64 bit binaries.
+func_win32_libid ()
+{
+  $debug_cmd
+
+  win32_libid_type=unknown
+  win32_fileres=`file -L $1 2>/dev/null`
+  case $win32_fileres in
+  *ar\ archive\ import\ library*) # definitely import
+    win32_libid_type="x86 archive import"
+    ;;
+  *ar\ archive*) # could be an import, or static
+    # Keep the egrep pattern in sync with the one in _LT_CHECK_MAGIC_METHOD.
+    if eval $OBJDUMP -f $1 | $SED -e '10q' 2>/dev/null |
+       $EGREP 'file format (pei*-i386(.*architecture: i386)?|pe-arm-wince|pe-x86-64)' >/dev/null; then
+      case $nm_interface in
+      "MS dumpbin")
+	if func_cygming_ms_implib_p "$1" ||
+	   func_cygming_gnu_implib_p "$1"
+	then
+	  win32_nmres=import
+	else
+	  win32_nmres=
+	fi
+	;;
+      *)
+	func_to_tool_file "$1" func_convert_file_msys_to_w32
+	win32_nmres=`eval $NM -f posix -A \"$func_to_tool_file_result\" |
+	  $SED -n -e '
+	    1,100{
+		/ I /{
+		    s|.*|import|
+		    p
+		    q
+		}
+	    }'`
+	;;
+      esac
+      case $win32_nmres in
+      import*)  win32_libid_type="x86 archive import";;
+      *)        win32_libid_type="x86 archive static";;
+      esac
+    fi
+    ;;
+  *DLL*)
+    win32_libid_type="x86 DLL"
+    ;;
+  *executable*) # but shell scripts are "executable" too...
+    case $win32_fileres in
+    *MS\ Windows\ PE\ Intel*)
+      win32_libid_type="x86 DLL"
+      ;;
+    esac
+    ;;
+  esac
+  $ECHO "$win32_libid_type"
+}
+
+# func_cygming_dll_for_implib ARG
+#
+# Platform-specific function to extract the
+# name of the DLL associated with the specified
+# import library ARG.
+# Invoked by eval'ing the libtool variable
+#    $sharedlib_from_linklib_cmd
+# Result is available in the variable
+#    $sharedlib_from_linklib_result
+func_cygming_dll_for_implib ()
+{
+  $debug_cmd
+
+  sharedlib_from_linklib_result=`$DLLTOOL --identify-strict --identify "$1"`
+}
+
+# func_cygming_dll_for_implib_fallback_core SECTION_NAME LIBNAMEs
+#
+# The is the core of a fallback implementation of a
+# platform-specific function to extract the name of the
+# DLL associated with the specified import library LIBNAME.
+#
+# SECTION_NAME is either .idata$6 or .idata$7, depending
+# on the platform and compiler that created the implib.
+#
+# Echos the name of the DLL associated with the
+# specified import library.
+func_cygming_dll_for_implib_fallback_core ()
+{
+  $debug_cmd
+
+  match_literal=`$ECHO "$1" | $SED "$sed_make_literal_regex"`
+  $OBJDUMP -s --section "$1" "$2" 2>/dev/null |
+    $SED '/^Contents of section '"$match_literal"':/{
+      # Place marker at beginning of archive member dllname section
+      s/.*/====MARK====/
+      p
+      d
+    }
+    # These lines can sometimes be longer than 43 characters, but
+    # are always uninteresting
+    /:[	 ]*file format pe[i]\{,1\}-/d
+    /^In archive [^:]*:/d
+    # Ensure marker is printed
+    /^====MARK====/p
+    # Remove all lines with less than 43 characters
+    /^.\{43\}/!d
+    # From remaining lines, remove first 43 characters
+    s/^.\{43\}//' |
+    $SED -n '
+      # Join marker and all lines until next marker into a single line
+      /^====MARK====/ b para
+      H
+      $ b para
+      b
+      :para
+      x
+      s/\n//g
+      # Remove the marker
+      s/^====MARK====//
+      # Remove trailing dots and whitespace
+      s/[\. \t]*$//
+      # Print
+      /./p' |
+    # we now have a list, one entry per line, of the stringified
+    # contents of the appropriate section of all members of the
+    # archive that possess that section. Heuristic: eliminate
+    # all those that have a first or second character that is
+    # a '.' (that is, objdump's representation of an unprintable
+    # character.) This should work for all archives with less than
+    # 0x302f exports -- but will fail for DLLs whose name actually
+    # begins with a literal '.' or a single character followed by
+    # a '.'.
+    #
+    # Of those that remain, print the first one.
+    $SED -e '/^\./d;/^.\./d;q'
+}
+
+# func_cygming_dll_for_implib_fallback ARG
+# Platform-specific function to extract the
+# name of the DLL associated with the specified
+# import library ARG.
+#
+# This fallback implementation is for use when $DLLTOOL
+# does not support the --identify-strict option.
+# Invoked by eval'ing the libtool variable
+#    $sharedlib_from_linklib_cmd
+# Result is available in the variable
+#    $sharedlib_from_linklib_result
+func_cygming_dll_for_implib_fallback ()
+{
+  $debug_cmd
+
+  if func_cygming_gnu_implib_p "$1"; then
+    # binutils import library
+    sharedlib_from_linklib_result=`func_cygming_dll_for_implib_fallback_core '.idata$7' "$1"`
+  elif func_cygming_ms_implib_p "$1"; then
+    # ms-generated import library
+    sharedlib_from_linklib_result=`func_cygming_dll_for_implib_fallback_core '.idata$6' "$1"`
+  else
+    # unknown
+    sharedlib_from_linklib_result=
+  fi
+}
+
+
+# func_extract_an_archive dir oldlib
+func_extract_an_archive ()
+{
+    $debug_cmd
+
+    f_ex_an_ar_dir=$1; shift
+    f_ex_an_ar_oldlib=$1
+    if test yes = "$lock_old_archive_extraction"; then
+      lockfile=$f_ex_an_ar_oldlib.lock
+      until $opt_dry_run || ln "$progpath" "$lockfile" 2>/dev/null; do
+	func_echo "Waiting for $lockfile to be removed"
+	sleep 2
+      done
+    fi
+    func_show_eval "(cd \$f_ex_an_ar_dir && $AR x \"\$f_ex_an_ar_oldlib\")" \
+		   'stat=$?; rm -f "$lockfile"; exit $stat'
+    if test yes = "$lock_old_archive_extraction"; then
+      $opt_dry_run || rm -f "$lockfile"
+    fi
+    if ($AR t "$f_ex_an_ar_oldlib" | sort | sort -uc >/dev/null 2>&1); then
+     :
+    else
+      func_fatal_error "object name conflicts in archive: $f_ex_an_ar_dir/$f_ex_an_ar_oldlib"
+    fi
+}
+
+
+# func_extract_archives gentop oldlib ...
+func_extract_archives ()
+{
+    $debug_cmd
+
+    my_gentop=$1; shift
+    my_oldlibs=${1+"$@"}
+    my_oldobjs=
+    my_xlib=
+    my_xabs=
+    my_xdir=
+
+    for my_xlib in $my_oldlibs; do
+      # Extract the objects.
+      case $my_xlib in
+	[\\/]* | [A-Za-z]:[\\/]*) my_xabs=$my_xlib ;;
+	*) my_xabs=`pwd`"/$my_xlib" ;;
+      esac
+      func_basename "$my_xlib"
+      my_xlib=$func_basename_result
+      my_xlib_u=$my_xlib
+      while :; do
+        case " $extracted_archives " in
+	*" $my_xlib_u "*)
+	  func_arith $extracted_serial + 1
+	  extracted_serial=$func_arith_result
+	  my_xlib_u=lt$extracted_serial-$my_xlib ;;
+	*) break ;;
+	esac
+      done
+      extracted_archives="$extracted_archives $my_xlib_u"
+      my_xdir=$my_gentop/$my_xlib_u
+
+      func_mkdir_p "$my_xdir"
+
+      case $host in
+      *-darwin*)
+	func_verbose "Extracting $my_xabs"
+	# Do not bother doing anything if just a dry run
+	$opt_dry_run || {
+	  darwin_orig_dir=`pwd`
+	  cd $my_xdir || exit $?
+	  darwin_archive=$my_xabs
+	  darwin_curdir=`pwd`
+	  func_basename "$darwin_archive"
+	  darwin_base_archive=$func_basename_result
+	  darwin_arches=`$LIPO -info "$darwin_archive" 2>/dev/null | $GREP Architectures 2>/dev/null || true`
+	  if test -n "$darwin_arches"; then
+	    darwin_arches=`$ECHO "$darwin_arches" | $SED -e 's/.*are://'`
+	    darwin_arch=
+	    func_verbose "$darwin_base_archive has multiple architectures $darwin_arches"
+	    for darwin_arch in  $darwin_arches; do
+	      func_mkdir_p "unfat-$$/$darwin_base_archive-$darwin_arch"
+	      $LIPO -thin $darwin_arch -output "unfat-$$/$darwin_base_archive-$darwin_arch/$darwin_base_archive" "$darwin_archive"
+	      cd "unfat-$$/$darwin_base_archive-$darwin_arch"
+	      func_extract_an_archive "`pwd`" "$darwin_base_archive"
+	      cd "$darwin_curdir"
+	      $RM "unfat-$$/$darwin_base_archive-$darwin_arch/$darwin_base_archive"
+	    done # $darwin_arches
+            ## Okay now we've a bunch of thin objects, gotta fatten them up :)
+	    darwin_filelist=`find unfat-$$ -type f -name \*.o -print -o -name \*.lo -print | $SED -e "$sed_basename" | sort -u`
+	    darwin_file=
+	    darwin_files=
+	    for darwin_file in $darwin_filelist; do
+	      darwin_files=`find unfat-$$ -name $darwin_file -print | sort | $NL2SP`
+	      $LIPO -create -output "$darwin_file" $darwin_files
+	    done # $darwin_filelist
+	    $RM -rf unfat-$$
+	    cd "$darwin_orig_dir"
+	  else
+	    cd $darwin_orig_dir
+	    func_extract_an_archive "$my_xdir" "$my_xabs"
+	  fi # $darwin_arches
+	} # !$opt_dry_run
+	;;
+      *)
+        func_extract_an_archive "$my_xdir" "$my_xabs"
+	;;
+      esac
+      my_oldobjs="$my_oldobjs "`find $my_xdir -name \*.$objext -print -o -name \*.lo -print | sort | $NL2SP`
+    done
+
+    func_extract_archives_result=$my_oldobjs
+}
+
+
+# func_emit_wrapper [arg=no]
+#
+# Emit a libtool wrapper script on stdout.
+# Don't directly open a file because we may want to
+# incorporate the script contents within a cygwin/mingw
+# wrapper executable.  Must ONLY be called from within
+# func_mode_link because it depends on a number of variables
+# set therein.
+#
+# ARG is the value that the WRAPPER_SCRIPT_BELONGS_IN_OBJDIR
+# variable will take.  If 'yes', then the emitted script
+# will assume that the directory where it is stored is
+# the $objdir directory.  This is a cygwin/mingw-specific
+# behavior.
+func_emit_wrapper ()
+{
+	func_emit_wrapper_arg1=${1-no}
+
+	$ECHO "\
+#! $SHELL
+
+# $output - temporary wrapper script for $objdir/$outputname
+# Generated by $PROGRAM (GNU $PACKAGE) $VERSION
+#
+# The $output program cannot be directly executed until all the libtool
+# libraries that it depends on are installed.
+#
+# This wrapper script should never be moved out of the build directory.
+# If it is, it will not operate correctly.
+
+# Sed substitution that helps us do robust quoting.  It backslashifies
+# metacharacters that are still active within double-quoted strings.
+sed_quote_subst='$sed_quote_subst'
+
+# Be Bourne compatible
+if test -n \"\${ZSH_VERSION+set}\" && (emulate sh) >/dev/null 2>&1; then
+  emulate sh
+  NULLCMD=:
+  # Zsh 3.x and 4.x performs word splitting on \${1+\"\$@\"}, which
+  # is contrary to our usage.  Disable this feature.
+  alias -g '\${1+\"\$@\"}'='\"\$@\"'
+  setopt NO_GLOB_SUBST
+else
+  case \`(set -o) 2>/dev/null\` in *posix*) set -o posix;; esac
+fi
+BIN_SH=xpg4; export BIN_SH # for Tru64
+DUALCASE=1; export DUALCASE # for MKS sh
+
+# The HP-UX ksh and POSIX shell print the target directory to stdout
+# if CDPATH is set.
+(unset CDPATH) >/dev/null 2>&1 && unset CDPATH
+
+relink_command=\"$relink_command\"
+
+# This environment variable determines our operation mode.
+if test \"\$libtool_install_magic\" = \"$magic\"; then
+  # install mode needs the following variables:
+  generated_by_libtool_version='$macro_version'
+  notinst_deplibs='$notinst_deplibs'
+else
+  # When we are sourced in execute mode, \$file and \$ECHO are already set.
+  if test \"\$libtool_execute_magic\" != \"$magic\"; then
+    file=\"\$0\""
+
+    qECHO=`$ECHO "$ECHO" | $SED "$sed_quote_subst"`
+    $ECHO "\
+
+# A function that is used when there is no print builtin or printf.
+func_fallback_echo ()
+{
+  eval 'cat <<_LTECHO_EOF
+\$1
+_LTECHO_EOF'
+}
+    ECHO=\"$qECHO\"
+  fi
+
+# Very basic option parsing. These options are (a) specific to
+# the libtool wrapper, (b) are identical between the wrapper
+# /script/ and the wrapper /executable/ that is used only on
+# windows platforms, and (c) all begin with the string "--lt-"
+# (application programs are unlikely to have options that match
+# this pattern).
+#
+# There are only two supported options: --lt-debug and
+# --lt-dump-script. There is, deliberately, no --lt-help.
+#
+# The first argument to this parsing function should be the
+# script's $0 value, followed by "$@".
+lt_option_debug=
+func_parse_lt_options ()
+{
+  lt_script_arg0=\$0
+  shift
+  for lt_opt
+  do
+    case \"\$lt_opt\" in
+    --lt-debug) lt_option_debug=1 ;;
+    --lt-dump-script)
+        lt_dump_D=\`\$ECHO \"X\$lt_script_arg0\" | $SED -e 's/^X//' -e 's%/[^/]*$%%'\`
+        test \"X\$lt_dump_D\" = \"X\$lt_script_arg0\" && lt_dump_D=.
+        lt_dump_F=\`\$ECHO \"X\$lt_script_arg0\" | $SED -e 's/^X//' -e 's%^.*/%%'\`
+        cat \"\$lt_dump_D/\$lt_dump_F\"
+        exit 0
+      ;;
+    --lt-*)
+        \$ECHO \"Unrecognized --lt- option: '\$lt_opt'\" 1>&2
+        exit 1
+      ;;
+    esac
+  done
+
+  # Print the debug banner immediately:
+  if test -n \"\$lt_option_debug\"; then
+    echo \"$outputname:$output:\$LINENO: libtool wrapper (GNU $PACKAGE) $VERSION\" 1>&2
+  fi
+}
+
+# Used when --lt-debug. Prints its arguments to stdout
+# (redirection is the responsibility of the caller)
+func_lt_dump_args ()
+{
+  lt_dump_args_N=1;
+  for lt_arg
+  do
+    \$ECHO \"$outputname:$output:\$LINENO: newargv[\$lt_dump_args_N]: \$lt_arg\"
+    lt_dump_args_N=\`expr \$lt_dump_args_N + 1\`
+  done
+}
+
+# Core function for launching the target application
+func_exec_program_core ()
+{
+"
+  case $host in
+  # Backslashes separate directories on plain windows
+  *-*-mingw | *-*-os2* | *-cegcc*)
+    $ECHO "\
+      if test -n \"\$lt_option_debug\"; then
+        \$ECHO \"$outputname:$output:\$LINENO: newargv[0]: \$progdir\\\\\$program\" 1>&2
+        func_lt_dump_args \${1+\"\$@\"} 1>&2
+      fi
+      exec \"\$progdir\\\\\$program\" \${1+\"\$@\"}
+"
+    ;;
+
+  *)
+    $ECHO "\
+      if test -n \"\$lt_option_debug\"; then
+        \$ECHO \"$outputname:$output:\$LINENO: newargv[0]: \$progdir/\$program\" 1>&2
+        func_lt_dump_args \${1+\"\$@\"} 1>&2
+      fi
+      exec \"\$progdir/\$program\" \${1+\"\$@\"}
+"
+    ;;
+  esac
+  $ECHO "\
+      \$ECHO \"\$0: cannot exec \$program \$*\" 1>&2
+      exit 1
+}
+
+# A function to encapsulate launching the target application
+# Strips options in the --lt-* namespace from \$@ and
+# launches target application with the remaining arguments.
+func_exec_program ()
+{
+  case \" \$* \" in
+  *\\ --lt-*)
+    for lt_wr_arg
+    do
+      case \$lt_wr_arg in
+      --lt-*) ;;
+      *) set x \"\$@\" \"\$lt_wr_arg\"; shift;;
+      esac
+      shift
+    done ;;
+  esac
+  func_exec_program_core \${1+\"\$@\"}
+}
+
+  # Parse options
+  func_parse_lt_options \"\$0\" \${1+\"\$@\"}
+
+  # Find the directory that this script lives in.
+  thisdir=\`\$ECHO \"\$file\" | $SED 's%/[^/]*$%%'\`
+  test \"x\$thisdir\" = \"x\$file\" && thisdir=.
+
+  # Follow symbolic links until we get to the real thisdir.
+  file=\`ls -ld \"\$file\" | $SED -n 's/.*-> //p'\`
+  while test -n \"\$file\"; do
+    destdir=\`\$ECHO \"\$file\" | $SED 's%/[^/]*\$%%'\`
+
+    # If there was a directory component, then change thisdir.
+    if test \"x\$destdir\" != \"x\$file\"; then
+      case \"\$destdir\" in
+      [\\\\/]* | [A-Za-z]:[\\\\/]*) thisdir=\"\$destdir\" ;;
+      *) thisdir=\"\$thisdir/\$destdir\" ;;
+      esac
+    fi
+
+    file=\`\$ECHO \"\$file\" | $SED 's%^.*/%%'\`
+    file=\`ls -ld \"\$thisdir/\$file\" | $SED -n 's/.*-> //p'\`
+  done
+
+  # Usually 'no', except on cygwin/mingw when embedded into
+  # the cwrapper.
+  WRAPPER_SCRIPT_BELONGS_IN_OBJDIR=$func_emit_wrapper_arg1
+  if test \"\$WRAPPER_SCRIPT_BELONGS_IN_OBJDIR\" = \"yes\"; then
+    # special case for '.'
+    if test \"\$thisdir\" = \".\"; then
+      thisdir=\`pwd\`
+    fi
+    # remove .libs from thisdir
+    case \"\$thisdir\" in
+    *[\\\\/]$objdir ) thisdir=\`\$ECHO \"\$thisdir\" | $SED 's%[\\\\/][^\\\\/]*$%%'\` ;;
+    $objdir )   thisdir=. ;;
+    esac
+  fi
+
+  # Try to get the absolute directory name.
+  absdir=\`cd \"\$thisdir\" && pwd\`
+  test -n \"\$absdir\" && thisdir=\"\$absdir\"
+"
+
+	if test yes = "$fast_install"; then
+	  $ECHO "\
+  program=lt-'$outputname'$exeext
+  progdir=\"\$thisdir/$objdir\"
+
+  if test ! -f \"\$progdir/\$program\" ||
+     { file=\`ls -1dt \"\$progdir/\$program\" \"\$progdir/../\$program\" 2>/dev/null | $SED 1q\`; \\
+       test \"X\$file\" != \"X\$progdir/\$program\"; }; then
+
+    file=\"\$\$-\$program\"
+
+    if test ! -d \"\$progdir\"; then
+      $MKDIR \"\$progdir\"
+    else
+      $RM \"\$progdir/\$file\"
+    fi"
+
+	  $ECHO "\
+
+    # relink executable if necessary
+    if test -n \"\$relink_command\"; then
+      if relink_command_output=\`eval \$relink_command 2>&1\`; then :
+      else
+	\$ECHO \"\$relink_command_output\" >&2
+	$RM \"\$progdir/\$file\"
+	exit 1
+      fi
+    fi
+
+    $MV \"\$progdir/\$file\" \"\$progdir/\$program\" 2>/dev/null ||
+    { $RM \"\$progdir/\$program\";
+      $MV \"\$progdir/\$file\" \"\$progdir/\$program\"; }
+    $RM \"\$progdir/\$file\"
+  fi"
+	else
+	  $ECHO "\
+  program='$outputname'
+  progdir=\"\$thisdir/$objdir\"
+"
+	fi
+
+	$ECHO "\
+
+  if test -f \"\$progdir/\$program\"; then"
+
+	# fixup the dll searchpath if we need to.
+	#
+	# Fix the DLL searchpath if we need to.  Do this before prepending
+	# to shlibpath, because on Windows, both are PATH and uninstalled
+	# libraries must come first.
+	if test -n "$dllsearchpath"; then
+	  $ECHO "\
+    # Add the dll search path components to the executable PATH
+    PATH=$dllsearchpath:\$PATH
+"
+	fi
+
+	# Export our shlibpath_var if we have one.
+	if test yes = "$shlibpath_overrides_runpath" && test -n "$shlibpath_var" && test -n "$temp_rpath"; then
+	  $ECHO "\
+    # Add our own library path to $shlibpath_var
+    $shlibpath_var=\"$temp_rpath\$$shlibpath_var\"
+
+    # Some systems cannot cope with colon-terminated $shlibpath_var
+    # The second colon is a workaround for a bug in BeOS R4 sed
+    $shlibpath_var=\`\$ECHO \"\$$shlibpath_var\" | $SED 's/::*\$//'\`
+
+    export $shlibpath_var
+"
+	fi
+
+	$ECHO "\
+    if test \"\$libtool_execute_magic\" != \"$magic\"; then
+      # Run the actual program with our arguments.
+      func_exec_program \${1+\"\$@\"}
+    fi
+  else
+    # The program doesn't exist.
+    \$ECHO \"\$0: error: '\$progdir/\$program' does not exist\" 1>&2
+    \$ECHO \"This script is just a wrapper for \$program.\" 1>&2
+    \$ECHO \"See the $PACKAGE documentation for more information.\" 1>&2
+    exit 1
+  fi
+fi\
+"
+}
+
+
+# func_emit_cwrapperexe_src
+# emit the source code for a wrapper executable on stdout
+# Must ONLY be called from within func_mode_link because
+# it depends on a number of variable set therein.
+func_emit_cwrapperexe_src ()
+{
+	cat <<EOF
+
+/* $cwrappersource - temporary wrapper executable for $objdir/$outputname
+   Generated by $PROGRAM (GNU $PACKAGE) $VERSION
+
+   The $output program cannot be directly executed until all the libtool
+   libraries that it depends on are installed.
+
+   This wrapper executable should never be moved out of the build directory.
+   If it is, it will not operate correctly.
+*/
+EOF
+	    cat <<"EOF"
+#ifdef _MSC_VER
+# define _CRT_SECURE_NO_DEPRECATE 1
+#endif
+#include <stdio.h>
+#include <stdlib.h>
+#ifdef _MSC_VER
+# include <direct.h>
+# include <process.h>
+# include <io.h>
+#else
+# include <unistd.h>
+# include <stdint.h>
+# ifdef __CYGWIN__
+#  include <io.h>
+# endif
+#endif
+#include <malloc.h>
+#include <stdarg.h>
+#include <assert.h>
+#include <string.h>
+#include <ctype.h>
+#include <errno.h>
+#include <fcntl.h>
+#include <sys/stat.h>
+
+#define STREQ(s1, s2) (strcmp ((s1), (s2)) == 0)
+
+/* declarations of non-ANSI functions */
+#if defined __MINGW32__
+# ifdef __STRICT_ANSI__
+int _putenv (const char *);
+# endif
+#elif defined __CYGWIN__
+# ifdef __STRICT_ANSI__
+char *realpath (const char *, char *);
+int putenv (char *);
+int setenv (const char *, const char *, int);
+# endif
+/* #elif defined other_platform || defined ... */
+#endif
+
+/* portability defines, excluding path handling macros */
+#if defined _MSC_VER
+# define setmode _setmode
+# define stat    _stat
+# define chmod   _chmod
+# define getcwd  _getcwd
+# define putenv  _putenv
+# define S_IXUSR _S_IEXEC
+#elif defined __MINGW32__
+# define setmode _setmode
+# define stat    _stat
+# define chmod   _chmod
+# define getcwd  _getcwd
+# define putenv  _putenv
+#elif defined __CYGWIN__
+# define HAVE_SETENV
+# define FOPEN_WB "wb"
+/* #elif defined other platforms ... */
+#endif
+
+#if defined PATH_MAX
+# define LT_PATHMAX PATH_MAX
+#elif defined MAXPATHLEN
+# define LT_PATHMAX MAXPATHLEN
+#else
+# define LT_PATHMAX 1024
+#endif
+
+#ifndef S_IXOTH
+# define S_IXOTH 0
+#endif
+#ifndef S_IXGRP
+# define S_IXGRP 0
+#endif
+
+/* path handling portability macros */
+#ifndef DIR_SEPARATOR
+# define DIR_SEPARATOR '/'
+# define PATH_SEPARATOR ':'
+#endif
+
+#if defined _WIN32 || defined __MSDOS__ || defined __DJGPP__ || \
+  defined __OS2__
+# define HAVE_DOS_BASED_FILE_SYSTEM
+# define FOPEN_WB "wb"
+# ifndef DIR_SEPARATOR_2
+#  define DIR_SEPARATOR_2 '\\'
+# endif
+# ifndef PATH_SEPARATOR_2
+#  define PATH_SEPARATOR_2 ';'
+# endif
+#endif
+
+#ifndef DIR_SEPARATOR_2
+# define IS_DIR_SEPARATOR(ch) ((ch) == DIR_SEPARATOR)
+#else /* DIR_SEPARATOR_2 */
+# define IS_DIR_SEPARATOR(ch) \
+	(((ch) == DIR_SEPARATOR) || ((ch) == DIR_SEPARATOR_2))
+#endif /* DIR_SEPARATOR_2 */
+
+#ifndef PATH_SEPARATOR_2
+# define IS_PATH_SEPARATOR(ch) ((ch) == PATH_SEPARATOR)
+#else /* PATH_SEPARATOR_2 */
+# define IS_PATH_SEPARATOR(ch) ((ch) == PATH_SEPARATOR_2)
+#endif /* PATH_SEPARATOR_2 */
+
+#ifndef FOPEN_WB
+# define FOPEN_WB "w"
+#endif
+#ifndef _O_BINARY
+# define _O_BINARY 0
+#endif
+
+#define XMALLOC(type, num)      ((type *) xmalloc ((num) * sizeof(type)))
+#define XFREE(stale) do { \
+  if (stale) { free (stale); stale = 0; } \
+} while (0)
+
+#if defined LT_DEBUGWRAPPER
+static int lt_debug = 1;
+#else
+static int lt_debug = 0;
+#endif
+
+const char *program_name = "libtool-wrapper"; /* in case xstrdup fails */
+
+void *xmalloc (size_t num);
+char *xstrdup (const char *string);
+const char *base_name (const char *name);
+char *find_executable (const char *wrapper);
+char *chase_symlinks (const char *pathspec);
+int make_executable (const char *path);
+int check_executable (const char *path);
+char *strendzap (char *str, const char *pat);
+void lt_debugprintf (const char *file, int line, const char *fmt, ...);
+void lt_fatal (const char *file, int line, const char *message, ...);
+static const char *nonnull (const char *s);
+static const char *nonempty (const char *s);
+void lt_setenv (const char *name, const char *value);
+char *lt_extend_str (const char *orig_value, const char *add, int to_end);
+void lt_update_exe_path (const char *name, const char *value);
+void lt_update_lib_path (const char *name, const char *value);
+char **prepare_spawn (char **argv);
+void lt_dump_script (FILE *f);
+EOF
+
+	    cat <<EOF
+#if __GNUC__ < 4 || (__GNUC__ == 4 && __GNUC_MINOR__ < 5)
+# define externally_visible volatile
+#else
+# define externally_visible __attribute__((externally_visible)) volatile
+#endif
+externally_visible const char * MAGIC_EXE = "$magic_exe";
+const char * LIB_PATH_VARNAME = "$shlibpath_var";
+EOF
+
+	    if test yes = "$shlibpath_overrides_runpath" && test -n "$shlibpath_var" && test -n "$temp_rpath"; then
+              func_to_host_path "$temp_rpath"
+	      cat <<EOF
+const char * LIB_PATH_VALUE   = "$func_to_host_path_result";
+EOF
+	    else
+	      cat <<"EOF"
+const char * LIB_PATH_VALUE   = "";
+EOF
+	    fi
+
+	    if test -n "$dllsearchpath"; then
+              func_to_host_path "$dllsearchpath:"
+	      cat <<EOF
+const char * EXE_PATH_VARNAME = "PATH";
+const char * EXE_PATH_VALUE   = "$func_to_host_path_result";
+EOF
+	    else
+	      cat <<"EOF"
+const char * EXE_PATH_VARNAME = "";
+const char * EXE_PATH_VALUE   = "";
+EOF
+	    fi
+
+	    if test yes = "$fast_install"; then
+	      cat <<EOF
+const char * TARGET_PROGRAM_NAME = "lt-$outputname"; /* hopefully, no .exe */
+EOF
+	    else
+	      cat <<EOF
+const char * TARGET_PROGRAM_NAME = "$outputname"; /* hopefully, no .exe */
+EOF
+	    fi
+
+
+	    cat <<"EOF"
+
+#define LTWRAPPER_OPTION_PREFIX         "--lt-"
+
+static const char *ltwrapper_option_prefix = LTWRAPPER_OPTION_PREFIX;
+static const char *dumpscript_opt       = LTWRAPPER_OPTION_PREFIX "dump-script";
+static const char *debug_opt            = LTWRAPPER_OPTION_PREFIX "debug";
+
+int
+main (int argc, char *argv[])
+{
+  char **newargz;
+  int  newargc;
+  char *tmp_pathspec;
+  char *actual_cwrapper_path;
+  char *actual_cwrapper_name;
+  char *target_name;
+  char *lt_argv_zero;
+  int rval = 127;
+
+  int i;
+
+  program_name = (char *) xstrdup (base_name (argv[0]));
+  newargz = XMALLOC (char *, (size_t) argc + 1);
+
+  /* very simple arg parsing; don't want to rely on getopt
+   * also, copy all non cwrapper options to newargz, except
+   * argz[0], which is handled differently
+   */
+  newargc=0;
+  for (i = 1; i < argc; i++)
+    {
+      if (STREQ (argv[i], dumpscript_opt))
+	{
+EOF
+	    case $host in
+	      *mingw* | *cygwin* )
+		# make stdout use "unix" line endings
+		echo "          setmode(1,_O_BINARY);"
+		;;
+	      esac
+
+	    cat <<"EOF"
+	  lt_dump_script (stdout);
+	  return 0;
+	}
+      if (STREQ (argv[i], debug_opt))
+	{
+          lt_debug = 1;
+          continue;
+	}
+      if (STREQ (argv[i], ltwrapper_option_prefix))
+        {
+          /* however, if there is an option in the LTWRAPPER_OPTION_PREFIX
+             namespace, but it is not one of the ones we know about and
+             have already dealt with, above (inluding dump-script), then
+             report an error. Otherwise, targets might begin to believe
+             they are allowed to use options in the LTWRAPPER_OPTION_PREFIX
+             namespace. The first time any user complains about this, we'll
+             need to make LTWRAPPER_OPTION_PREFIX a configure-time option
+             or a configure.ac-settable value.
+           */
+          lt_fatal (__FILE__, __LINE__,
+		    "unrecognized %s option: '%s'",
+                    ltwrapper_option_prefix, argv[i]);
+        }
+      /* otherwise ... */
+      newargz[++newargc] = xstrdup (argv[i]);
+    }
+  newargz[++newargc] = NULL;
+
+EOF
+	    cat <<EOF
+  /* The GNU banner must be the first non-error debug message */
+  lt_debugprintf (__FILE__, __LINE__, "libtool wrapper (GNU $PACKAGE) $VERSION\n");
+EOF
+	    cat <<"EOF"
+  lt_debugprintf (__FILE__, __LINE__, "(main) argv[0]: %s\n", argv[0]);
+  lt_debugprintf (__FILE__, __LINE__, "(main) program_name: %s\n", program_name);
+
+  tmp_pathspec = find_executable (argv[0]);
+  if (tmp_pathspec == NULL)
+    lt_fatal (__FILE__, __LINE__, "couldn't find %s", argv[0]);
+  lt_debugprintf (__FILE__, __LINE__,
+                  "(main) found exe (before symlink chase) at: %s\n",
+		  tmp_pathspec);
+
+  actual_cwrapper_path = chase_symlinks (tmp_pathspec);
+  lt_debugprintf (__FILE__, __LINE__,
+                  "(main) found exe (after symlink chase) at: %s\n",
+		  actual_cwrapper_path);
+  XFREE (tmp_pathspec);
+
+  actual_cwrapper_name = xstrdup (base_name (actual_cwrapper_path));
+  strendzap (actual_cwrapper_path, actual_cwrapper_name);
+
+  /* wrapper name transforms */
+  strendzap (actual_cwrapper_name, ".exe");
+  tmp_pathspec = lt_extend_str (actual_cwrapper_name, ".exe", 1);
+  XFREE (actual_cwrapper_name);
+  actual_cwrapper_name = tmp_pathspec;
+  tmp_pathspec = 0;
+
+  /* target_name transforms -- use actual target program name; might have lt- prefix */
+  target_name = xstrdup (base_name (TARGET_PROGRAM_NAME));
+  strendzap (target_name, ".exe");
+  tmp_pathspec = lt_extend_str (target_name, ".exe", 1);
+  XFREE (target_name);
+  target_name = tmp_pathspec;
+  tmp_pathspec = 0;
+
+  lt_debugprintf (__FILE__, __LINE__,
+		  "(main) libtool target name: %s\n",
+		  target_name);
+EOF
+
+	    cat <<EOF
+  newargz[0] =
+    XMALLOC (char, (strlen (actual_cwrapper_path) +
+		    strlen ("$objdir") + 1 + strlen (actual_cwrapper_name) + 1));
+  strcpy (newargz[0], actual_cwrapper_path);
+  strcat (newargz[0], "$objdir");
+  strcat (newargz[0], "/");
+EOF
+
+	    cat <<"EOF"
+  /* stop here, and copy so we don't have to do this twice */
+  tmp_pathspec = xstrdup (newargz[0]);
+
+  /* do NOT want the lt- prefix here, so use actual_cwrapper_name */
+  strcat (newargz[0], actual_cwrapper_name);
+
+  /* DO want the lt- prefix here if it exists, so use target_name */
+  lt_argv_zero = lt_extend_str (tmp_pathspec, target_name, 1);
+  XFREE (tmp_pathspec);
+  tmp_pathspec = NULL;
+EOF
+
+	    case $host_os in
+	      mingw*)
+	    cat <<"EOF"
+  {
+    char* p;
+    while ((p = strchr (newargz[0], '\\')) != NULL)
+      {
+	*p = '/';
+      }
+    while ((p = strchr (lt_argv_zero, '\\')) != NULL)
+      {
+	*p = '/';
+      }
+  }
+EOF
+	    ;;
+	    esac
+
+	    cat <<"EOF"
+  XFREE (target_name);
+  XFREE (actual_cwrapper_path);
+  XFREE (actual_cwrapper_name);
+
+  lt_setenv ("BIN_SH", "xpg4"); /* for Tru64 */
+  lt_setenv ("DUALCASE", "1");  /* for MSK sh */
+  /* Update the DLL searchpath.  EXE_PATH_VALUE ($dllsearchpath) must
+     be prepended before (that is, appear after) LIB_PATH_VALUE ($temp_rpath)
+     because on Windows, both *_VARNAMEs are PATH but uninstalled
+     libraries must come first. */
+  lt_update_exe_path (EXE_PATH_VARNAME, EXE_PATH_VALUE);
+  lt_update_lib_path (LIB_PATH_VARNAME, LIB_PATH_VALUE);
+
+  lt_debugprintf (__FILE__, __LINE__, "(main) lt_argv_zero: %s\n",
+		  nonnull (lt_argv_zero));
+  for (i = 0; i < newargc; i++)
+    {
+      lt_debugprintf (__FILE__, __LINE__, "(main) newargz[%d]: %s\n",
+		      i, nonnull (newargz[i]));
+    }
+
+EOF
+
+	    case $host_os in
+	      mingw*)
+		cat <<"EOF"
+  /* execv doesn't actually work on mingw as expected on unix */
+  newargz = prepare_spawn (newargz);
+  rval = (int) _spawnv (_P_WAIT, lt_argv_zero, (const char * const *) newargz);
+  if (rval == -1)
+    {
+      /* failed to start process */
+      lt_debugprintf (__FILE__, __LINE__,
+		      "(main) failed to launch target \"%s\": %s\n",
+		      lt_argv_zero, nonnull (strerror (errno)));
+      return 127;
+    }
+  return rval;
+EOF
+		;;
+	      *)
+		cat <<"EOF"
+  execv (lt_argv_zero, newargz);
+  return rval; /* =127, but avoids unused variable warning */
+EOF
+		;;
+	    esac
+
+	    cat <<"EOF"
+}
+
+void *
+xmalloc (size_t num)
+{
+  void *p = (void *) malloc (num);
+  if (!p)
+    lt_fatal (__FILE__, __LINE__, "memory exhausted");
+
+  return p;
+}
+
+char *
+xstrdup (const char *string)
+{
+  return string ? strcpy ((char *) xmalloc (strlen (string) + 1),
+			  string) : NULL;
+}
+
+const char *
+base_name (const char *name)
+{
+  const char *base;
+
+#if defined HAVE_DOS_BASED_FILE_SYSTEM
+  /* Skip over the disk name in MSDOS pathnames. */
+  if (isalpha ((unsigned char) name[0]) && name[1] == ':')
+    name += 2;
+#endif
+
+  for (base = name; *name; name++)
+    if (IS_DIR_SEPARATOR (*name))
+      base = name + 1;
+  return base;
+}
+
+int
+check_executable (const char *path)
+{
+  struct stat st;
+
+  lt_debugprintf (__FILE__, __LINE__, "(check_executable): %s\n",
+                  nonempty (path));
+  if ((!path) || (!*path))
+    return 0;
+
+  if ((stat (path, &st) >= 0)
+      && (st.st_mode & (S_IXUSR | S_IXGRP | S_IXOTH)))
+    return 1;
+  else
+    return 0;
+}
+
+int
+make_executable (const char *path)
+{
+  int rval = 0;
+  struct stat st;
+
+  lt_debugprintf (__FILE__, __LINE__, "(make_executable): %s\n",
+                  nonempty (path));
+  if ((!path) || (!*path))
+    return 0;
+
+  if (stat (path, &st) >= 0)
+    {
+      rval = chmod (path, st.st_mode | S_IXOTH | S_IXGRP | S_IXUSR);
+    }
+  return rval;
+}
+
+/* Searches for the full path of the wrapper.  Returns
+   newly allocated full path name if found, NULL otherwise
+   Does not chase symlinks, even on platforms that support them.
+*/
+char *
+find_executable (const char *wrapper)
+{
+  int has_slash = 0;
+  const char *p;
+  const char *p_next;
+  /* static buffer for getcwd */
+  char tmp[LT_PATHMAX + 1];
+  size_t tmp_len;
+  char *concat_name;
+
+  lt_debugprintf (__FILE__, __LINE__, "(find_executable): %s\n",
+                  nonempty (wrapper));
+
+  if ((wrapper == NULL) || (*wrapper == '\0'))
+    return NULL;
+
+  /* Absolute path? */
+#if defined HAVE_DOS_BASED_FILE_SYSTEM
+  if (isalpha ((unsigned char) wrapper[0]) && wrapper[1] == ':')
+    {
+      concat_name = xstrdup (wrapper);
+      if (check_executable (concat_name))
+	return concat_name;
+      XFREE (concat_name);
+    }
+  else
+    {
+#endif
+      if (IS_DIR_SEPARATOR (wrapper[0]))
+	{
+	  concat_name = xstrdup (wrapper);
+	  if (check_executable (concat_name))
+	    return concat_name;
+	  XFREE (concat_name);
+	}
+#if defined HAVE_DOS_BASED_FILE_SYSTEM
+    }
+#endif
+
+  for (p = wrapper; *p; p++)
+    if (*p == '/')
+      {
+	has_slash = 1;
+	break;
+      }
+  if (!has_slash)
+    {
+      /* no slashes; search PATH */
+      const char *path = getenv ("PATH");
+      if (path != NULL)
+	{
+	  for (p = path; *p; p = p_next)
+	    {
+	      const char *q;
+	      size_t p_len;
+	      for (q = p; *q; q++)
+		if (IS_PATH_SEPARATOR (*q))
+		  break;
+	      p_len = (size_t) (q - p);
+	      p_next = (*q == '\0' ? q : q + 1);
+	      if (p_len == 0)
+		{
+		  /* empty path: current directory */
+		  if (getcwd (tmp, LT_PATHMAX) == NULL)
+		    lt_fatal (__FILE__, __LINE__, "getcwd failed: %s",
+                              nonnull (strerror (errno)));
+		  tmp_len = strlen (tmp);
+		  concat_name =
+		    XMALLOC (char, tmp_len + 1 + strlen (wrapper) + 1);
+		  memcpy (concat_name, tmp, tmp_len);
+		  concat_name[tmp_len] = '/';
+		  strcpy (concat_name + tmp_len + 1, wrapper);
+		}
+	      else
+		{
+		  concat_name =
+		    XMALLOC (char, p_len + 1 + strlen (wrapper) + 1);
+		  memcpy (concat_name, p, p_len);
+		  concat_name[p_len] = '/';
+		  strcpy (concat_name + p_len + 1, wrapper);
+		}
+	      if (check_executable (concat_name))
+		return concat_name;
+	      XFREE (concat_name);
+	    }
+	}
+      /* not found in PATH; assume curdir */
+    }
+  /* Relative path | not found in path: prepend cwd */
+  if (getcwd (tmp, LT_PATHMAX) == NULL)
+    lt_fatal (__FILE__, __LINE__, "getcwd failed: %s",
+              nonnull (strerror (errno)));
+  tmp_len = strlen (tmp);
+  concat_name = XMALLOC (char, tmp_len + 1 + strlen (wrapper) + 1);
+  memcpy (concat_name, tmp, tmp_len);
+  concat_name[tmp_len] = '/';
+  strcpy (concat_name + tmp_len + 1, wrapper);
+
+  if (check_executable (concat_name))
+    return concat_name;
+  XFREE (concat_name);
+  return NULL;
+}
+
+char *
+chase_symlinks (const char *pathspec)
+{
+#ifndef S_ISLNK
+  return xstrdup (pathspec);
+#else
+  char buf[LT_PATHMAX];
+  struct stat s;
+  char *tmp_pathspec = xstrdup (pathspec);
+  char *p;
+  int has_symlinks = 0;
+  while (strlen (tmp_pathspec) && !has_symlinks)
+    {
+      lt_debugprintf (__FILE__, __LINE__,
+		      "checking path component for symlinks: %s\n",
+		      tmp_pathspec);
+      if (lstat (tmp_pathspec, &s) == 0)
+	{
+	  if (S_ISLNK (s.st_mode) != 0)
+	    {
+	      has_symlinks = 1;
+	      break;
+	    }
+
+	  /* search backwards for last DIR_SEPARATOR */
+	  p = tmp_pathspec + strlen (tmp_pathspec) - 1;
+	  while ((p > tmp_pathspec) && (!IS_DIR_SEPARATOR (*p)))
+	    p--;
+	  if ((p == tmp_pathspec) && (!IS_DIR_SEPARATOR (*p)))
+	    {
+	      /* no more DIR_SEPARATORS left */
+	      break;
+	    }
+	  *p = '\0';
+	}
+      else
+	{
+	  lt_fatal (__FILE__, __LINE__,
+		    "error accessing file \"%s\": %s",
+		    tmp_pathspec, nonnull (strerror (errno)));
+	}
+    }
+  XFREE (tmp_pathspec);
+
+  if (!has_symlinks)
+    {
+      return xstrdup (pathspec);
+    }
+
+  tmp_pathspec = realpath (pathspec, buf);
+  if (tmp_pathspec == 0)
+    {
+      lt_fatal (__FILE__, __LINE__,
+		"could not follow symlinks for %s", pathspec);
+    }
+  return xstrdup (tmp_pathspec);
+#endif
+}
+
+char *
+strendzap (char *str, const char *pat)
+{
+  size_t len, patlen;
+
+  assert (str != NULL);
+  assert (pat != NULL);
+
+  len = strlen (str);
+  patlen = strlen (pat);
+
+  if (patlen <= len)
+    {
+      str += len - patlen;
+      if (STREQ (str, pat))
+	*str = '\0';
+    }
+  return str;
+}
+
+void
+lt_debugprintf (const char *file, int line, const char *fmt, ...)
+{
+  va_list args;
+  if (lt_debug)
+    {
+      (void) fprintf (stderr, "%s:%s:%d: ", program_name, file, line);
+      va_start (args, fmt);
+      (void) vfprintf (stderr, fmt, args);
+      va_end (args);
+    }
+}
+
+static void
+lt_error_core (int exit_status, const char *file,
+	       int line, const char *mode,
+	       const char *message, va_list ap)
+{
+  fprintf (stderr, "%s:%s:%d: %s: ", program_name, file, line, mode);
+  vfprintf (stderr, message, ap);
+  fprintf (stderr, ".\n");
+
+  if (exit_status >= 0)
+    exit (exit_status);
+}
+
+void
+lt_fatal (const char *file, int line, const char *message, ...)
+{
+  va_list ap;
+  va_start (ap, message);
+  lt_error_core (EXIT_FAILURE, file, line, "FATAL", message, ap);
+  va_end (ap);
+}
+
+static const char *
+nonnull (const char *s)
+{
+  return s ? s : "(null)";
+}
+
+static const char *
+nonempty (const char *s)
+{
+  return (s && !*s) ? "(empty)" : nonnull (s);
+}
+
+void
+lt_setenv (const char *name, const char *value)
+{
+  lt_debugprintf (__FILE__, __LINE__,
+		  "(lt_setenv) setting '%s' to '%s'\n",
+                  nonnull (name), nonnull (value));
+  {
+#ifdef HAVE_SETENV
+    /* always make a copy, for consistency with !HAVE_SETENV */
+    char *str = xstrdup (value);
+    setenv (name, str, 1);
+#else
+    size_t len = strlen (name) + 1 + strlen (value) + 1;
+    char *str = XMALLOC (char, len);
+    sprintf (str, "%s=%s", name, value);
+    if (putenv (str) != EXIT_SUCCESS)
+      {
+        XFREE (str);
+      }
+#endif
+  }
+}
+
+char *
+lt_extend_str (const char *orig_value, const char *add, int to_end)
+{
+  char *new_value;
+  if (orig_value && *orig_value)
+    {
+      size_t orig_value_len = strlen (orig_value);
+      size_t add_len = strlen (add);
+      new_value = XMALLOC (char, add_len + orig_value_len + 1);
+      if (to_end)
+        {
+          strcpy (new_value, orig_value);
+          strcpy (new_value + orig_value_len, add);
+        }
+      else
+        {
+          strcpy (new_value, add);
+          strcpy (new_value + add_len, orig_value);
+        }
+    }
+  else
+    {
+      new_value = xstrdup (add);
+    }
+  return new_value;
+}
+
+void
+lt_update_exe_path (const char *name, const char *value)
+{
+  lt_debugprintf (__FILE__, __LINE__,
+		  "(lt_update_exe_path) modifying '%s' by prepending '%s'\n",
+                  nonnull (name), nonnull (value));
+
+  if (name && *name && value && *value)
+    {
+      char *new_value = lt_extend_str (getenv (name), value, 0);
+      /* some systems can't cope with a ':'-terminated path #' */
+      size_t len = strlen (new_value);
+      while ((len > 0) && IS_PATH_SEPARATOR (new_value[len-1]))
+        {
+          new_value[--len] = '\0';
+        }
+      lt_setenv (name, new_value);
+      XFREE (new_value);
+    }
+}
+
+void
+lt_update_lib_path (const char *name, const char *value)
+{
+  lt_debugprintf (__FILE__, __LINE__,
+		  "(lt_update_lib_path) modifying '%s' by prepending '%s'\n",
+                  nonnull (name), nonnull (value));
+
+  if (name && *name && value && *value)
+    {
+      char *new_value = lt_extend_str (getenv (name), value, 0);
+      lt_setenv (name, new_value);
+      XFREE (new_value);
+    }
+}
+
+EOF
+	    case $host_os in
+	      mingw*)
+		cat <<"EOF"
+
+/* Prepares an argument vector before calling spawn().
+   Note that spawn() does not by itself call the command interpreter
+     (getenv ("COMSPEC") != NULL ? getenv ("COMSPEC") :
+      ({ OSVERSIONINFO v; v.dwOSVersionInfoSize = sizeof(OSVERSIONINFO);
+         GetVersionEx(&v);
+         v.dwPlatformId == VER_PLATFORM_WIN32_NT;
+      }) ? "cmd.exe" : "command.com").
+   Instead it simply concatenates the arguments, separated by ' ', and calls
+   CreateProcess().  We must quote the arguments since Win32 CreateProcess()
+   interprets characters like ' ', '\t', '\\', '"' (but not '<' and '>') in a
+   special way:
+   - Space and tab are interpreted as delimiters. They are not treated as
+     delimiters if they are surrounded by double quotes: "...".
+   - Unescaped double quotes are removed from the input. Their only effect is
+     that within double quotes, space and tab are treated like normal
+     characters.
+   - Backslashes not followed by double quotes are not special.
+   - But 2*n+1 backslashes followed by a double quote become
+     n backslashes followed by a double quote (n >= 0):
+       \" -> "
+       \\\" -> \"
+       \\\\\" -> \\"
+ */
+#define SHELL_SPECIAL_CHARS "\"\\ \001\002\003\004\005\006\007\010\011\012\013\014\015\016\017\020\021\022\023\024\025\026\027\030\031\032\033\034\035\036\037"
+#define SHELL_SPACE_CHARS " \001\002\003\004\005\006\007\010\011\012\013\014\015\016\017\020\021\022\023\024\025\026\027\030\031\032\033\034\035\036\037"
+char **
+prepare_spawn (char **argv)
+{
+  size_t argc;
+  char **new_argv;
+  size_t i;
+
+  /* Count number of arguments.  */
+  for (argc = 0; argv[argc] != NULL; argc++)
+    ;
+
+  /* Allocate new argument vector.  */
+  new_argv = XMALLOC (char *, argc + 1);
+
+  /* Put quoted arguments into the new argument vector.  */
+  for (i = 0; i < argc; i++)
+    {
+      const char *string = argv[i];
+
+      if (string[0] == '\0')
+	new_argv[i] = xstrdup ("\"\"");
+      else if (strpbrk (string, SHELL_SPECIAL_CHARS) != NULL)
+	{
+	  int quote_around = (strpbrk (string, SHELL_SPACE_CHARS) != NULL);
+	  size_t length;
+	  unsigned int backslashes;
+	  const char *s;
+	  char *quoted_string;
+	  char *p;
+
+	  length = 0;
+	  backslashes = 0;
+	  if (quote_around)
+	    length++;
+	  for (s = string; *s != '\0'; s++)
+	    {
+	      char c = *s;
+	      if (c == '"')
+		length += backslashes + 1;
+	      length++;
+	      if (c == '\\')
+		backslashes++;
+	      else
+		backslashes = 0;
+	    }
+	  if (quote_around)
+	    length += backslashes + 1;
+
+	  quoted_string = XMALLOC (char, length + 1);
+
+	  p = quoted_string;
+	  backslashes = 0;
+	  if (quote_around)
+	    *p++ = '"';
+	  for (s = string; *s != '\0'; s++)
+	    {
+	      char c = *s;
+	      if (c == '"')
+		{
+		  unsigned int j;
+		  for (j = backslashes + 1; j > 0; j--)
+		    *p++ = '\\';
+		}
+	      *p++ = c;
+	      if (c == '\\')
+		backslashes++;
+	      else
+		backslashes = 0;
+	    }
+	  if (quote_around)
+	    {
+	      unsigned int j;
+	      for (j = backslashes; j > 0; j--)
+		*p++ = '\\';
+	      *p++ = '"';
+	    }
+	  *p = '\0';
+
+	  new_argv[i] = quoted_string;
+	}
+      else
+	new_argv[i] = (char *) string;
+    }
+  new_argv[argc] = NULL;
+
+  return new_argv;
+}
+EOF
+		;;
+	    esac
+
+            cat <<"EOF"
+void lt_dump_script (FILE* f)
+{
+EOF
+	    func_emit_wrapper yes |
+	      $SED -n -e '
+s/^\(.\{79\}\)\(..*\)/\1\
+\2/
+h
+s/\([\\"]\)/\\\1/g
+s/$/\\n/
+s/\([^\n]*\).*/  fputs ("\1", f);/p
+g
+D'
+            cat <<"EOF"
+}
+EOF
+}
+# end: func_emit_cwrapperexe_src
+
+# func_win32_import_lib_p ARG
+# True if ARG is an import lib, as indicated by $file_magic_cmd
+func_win32_import_lib_p ()
+{
+    $debug_cmd
+
+    case `eval $file_magic_cmd \"\$1\" 2>/dev/null | $SED -e 10q` in
+    *import*) : ;;
+    *) false ;;
+    esac
+}
+
+# func_suncc_cstd_abi
+# !!ONLY CALL THIS FOR SUN CC AFTER $compile_command IS FULLY EXPANDED!!
+# Several compiler flags select an ABI that is incompatible with the
+# Cstd library. Avoid specifying it if any are in CXXFLAGS.
+func_suncc_cstd_abi ()
+{
+    $debug_cmd
+
+    case " $compile_command " in
+    *" -compat=g "*|*\ -std=c++[0-9][0-9]\ *|*" -library=stdcxx4 "*|*" -library=stlport4 "*)
+      suncc_use_cstd_abi=no
+      ;;
+    *)
+      suncc_use_cstd_abi=yes
+      ;;
+    esac
+}
+
+# func_mode_link arg...
+func_mode_link ()
+{
+    $debug_cmd
+
+    case $host in
+    *-*-cygwin* | *-*-mingw* | *-*-pw32* | *-*-os2* | *-cegcc*)
+      # It is impossible to link a dll without this setting, and
+      # we shouldn't force the makefile maintainer to figure out
+      # what system we are compiling for in order to pass an extra
+      # flag for every libtool invocation.
+      # allow_undefined=no
+
+      # FIXME: Unfortunately, there are problems with the above when trying
+      # to make a dll that has undefined symbols, in which case not
+      # even a static library is built.  For now, we need to specify
+      # -no-undefined on the libtool link line when we can be certain
+      # that all symbols are satisfied, otherwise we get a static library.
+      allow_undefined=yes
+      ;;
+    *)
+      allow_undefined=yes
+      ;;
+    esac
+    libtool_args=$nonopt
+    base_compile="$nonopt $@"
+    compile_command=$nonopt
+    finalize_command=$nonopt
+
+    compile_rpath=
+    finalize_rpath=
+    compile_shlibpath=
+    finalize_shlibpath=
+    convenience=
+    old_convenience=
+    deplibs=
+    old_deplibs=
+    compiler_flags=
+    linker_flags=
+    dllsearchpath=
+    lib_search_path=`pwd`
+    inst_prefix_dir=
+    new_inherited_linker_flags=
+
+    avoid_version=no
+    bindir=
+    dlfiles=
+    dlprefiles=
+    dlself=no
+    export_dynamic=no
+    export_symbols=
+    export_symbols_regex=
+    generated=
+    libobjs=
+    ltlibs=
+    module=no
+    no_install=no
+    objs=
+    os2dllname=
+    non_pic_objects=
+    precious_files_regex=
+    prefer_static_libs=no
+    preload=false
+    prev=
+    prevarg=
+    release=
+    rpath=
+    xrpath=
+    perm_rpath=
+    temp_rpath=
+    thread_safe=no
+    vinfo=
+    vinfo_number=no
+    weak_libs=
+    single_module=$wl-single_module
+    func_infer_tag $base_compile
+
+    # We need to know -static, to get the right output filenames.
+    for arg
+    do
+      case $arg in
+      -shared)
+	test yes != "$build_libtool_libs" \
+	  && func_fatal_configuration "cannot build a shared library"
+	build_old_libs=no
+	break
+	;;
+      -all-static | -static | -static-libtool-libs)
+	case $arg in
+	-all-static)
+	  if test yes = "$build_libtool_libs" && test -z "$link_static_flag"; then
+	    func_warning "complete static linking is impossible in this configuration"
+	  fi
+	  if test -n "$link_static_flag"; then
+	    dlopen_self=$dlopen_self_static
+	  fi
+	  prefer_static_libs=yes
+	  ;;
+	-static)
+	  if test -z "$pic_flag" && test -n "$link_static_flag"; then
+	    dlopen_self=$dlopen_self_static
+	  fi
+	  prefer_static_libs=built
+	  ;;
+	-static-libtool-libs)
+	  if test -z "$pic_flag" && test -n "$link_static_flag"; then
+	    dlopen_self=$dlopen_self_static
+	  fi
+	  prefer_static_libs=yes
+	  ;;
+	esac
+	build_libtool_libs=no
+	build_old_libs=yes
+	break
+	;;
+      esac
+    done
+
+    # See if our shared archives depend on static archives.
+    test -n "$old_archive_from_new_cmds" && build_old_libs=yes
+
+    # Go through the arguments, transforming them on the way.
+    while test "$#" -gt 0; do
+      arg=$1
+      shift
+      func_quote_for_eval "$arg"
+      qarg=$func_quote_for_eval_unquoted_result
+      func_append libtool_args " $func_quote_for_eval_result"
+
+      # If the previous option needs an argument, assign it.
+      if test -n "$prev"; then
+	case $prev in
+	output)
+	  func_append compile_command " @OUTPUT@"
+	  func_append finalize_command " @OUTPUT@"
+	  ;;
+	esac
+
+	case $prev in
+	bindir)
+	  bindir=$arg
+	  prev=
+	  continue
+	  ;;
+	dlfiles|dlprefiles)
+	  $preload || {
+	    # Add the symbol object into the linking commands.
+	    func_append compile_command " @SYMFILE@"
+	    func_append finalize_command " @SYMFILE@"
+	    preload=:
+	  }
+	  case $arg in
+	  *.la | *.lo) ;;  # We handle these cases below.
+	  force)
+	    if test no = "$dlself"; then
+	      dlself=needless
+	      export_dynamic=yes
+	    fi
+	    prev=
+	    continue
+	    ;;
+	  self)
+	    if test dlprefiles = "$prev"; then
+	      dlself=yes
+	    elif test dlfiles = "$prev" && test yes != "$dlopen_self"; then
+	      dlself=yes
+	    else
+	      dlself=needless
+	      export_dynamic=yes
+	    fi
+	    prev=
+	    continue
+	    ;;
+	  *)
+	    if test dlfiles = "$prev"; then
+	      func_append dlfiles " $arg"
+	    else
+	      func_append dlprefiles " $arg"
+	    fi
+	    prev=
+	    continue
+	    ;;
+	  esac
+	  ;;
+	expsyms)
+	  export_symbols=$arg
+	  test -f "$arg" \
+	    || func_fatal_error "symbol file '$arg' does not exist"
+	  prev=
+	  continue
+	  ;;
+	expsyms_regex)
+	  export_symbols_regex=$arg
+	  prev=
+	  continue
+	  ;;
+	framework)
+	  case $host in
+	    *-*-darwin*)
+	      case "$deplibs " in
+		*" $qarg.ltframework "*) ;;
+		*) func_append deplibs " $qarg.ltframework" # this is fixed later
+		   ;;
+	      esac
+	      ;;
+	  esac
+	  prev=
+	  continue
+	  ;;
+	inst_prefix)
+	  inst_prefix_dir=$arg
+	  prev=
+	  continue
+	  ;;
+	mllvm)
+	  # Clang does not use LLVM to link, so we can simply discard any
+	  # '-mllvm $arg' options when doing the link step.
+	  prev=
+	  continue
+	  ;;
+	objectlist)
+	  if test -f "$arg"; then
+	    save_arg=$arg
+	    moreargs=
+	    for fil in `cat "$save_arg"`
+	    do
+#	      func_append moreargs " $fil"
+	      arg=$fil
+	      # A libtool-controlled object.
+
+	      # Check to see that this really is a libtool object.
+	      if func_lalib_unsafe_p "$arg"; then
+		pic_object=
+		non_pic_object=
+
+		# Read the .lo file
+		func_source "$arg"
+
+		if test -z "$pic_object" ||
+		   test -z "$non_pic_object" ||
+		   test none = "$pic_object" &&
+		   test none = "$non_pic_object"; then
+		  func_fatal_error "cannot find name of object for '$arg'"
+		fi
+
+		# Extract subdirectory from the argument.
+		func_dirname "$arg" "/" ""
+		xdir=$func_dirname_result
+
+		if test none != "$pic_object"; then
+		  # Prepend the subdirectory the object is found in.
+		  pic_object=$xdir$pic_object
+
+		  if test dlfiles = "$prev"; then
+		    if test yes = "$build_libtool_libs" && test yes = "$dlopen_support"; then
+		      func_append dlfiles " $pic_object"
+		      prev=
+		      continue
+		    else
+		      # If libtool objects are unsupported, then we need to preload.
+		      prev=dlprefiles
+		    fi
+		  fi
+
+		  # CHECK ME:  I think I busted this.  -Ossama
+		  if test dlprefiles = "$prev"; then
+		    # Preload the old-style object.
+		    func_append dlprefiles " $pic_object"
+		    prev=
+		  fi
+
+		  # A PIC object.
+		  func_append libobjs " $pic_object"
+		  arg=$pic_object
+		fi
+
+		# Non-PIC object.
+		if test none != "$non_pic_object"; then
+		  # Prepend the subdirectory the object is found in.
+		  non_pic_object=$xdir$non_pic_object
+
+		  # A standard non-PIC object
+		  func_append non_pic_objects " $non_pic_object"
+		  if test -z "$pic_object" || test none = "$pic_object"; then
+		    arg=$non_pic_object
+		  fi
+		else
+		  # If the PIC object exists, use it instead.
+		  # $xdir was prepended to $pic_object above.
+		  non_pic_object=$pic_object
+		  func_append non_pic_objects " $non_pic_object"
+		fi
+	      else
+		# Only an error if not doing a dry-run.
+		if $opt_dry_run; then
+		  # Extract subdirectory from the argument.
+		  func_dirname "$arg" "/" ""
+		  xdir=$func_dirname_result
+
+		  func_lo2o "$arg"
+		  pic_object=$xdir$objdir/$func_lo2o_result
+		  non_pic_object=$xdir$func_lo2o_result
+		  func_append libobjs " $pic_object"
+		  func_append non_pic_objects " $non_pic_object"
+	        else
+		  func_fatal_error "'$arg' is not a valid libtool object"
+		fi
+	      fi
+	    done
+	  else
+	    func_fatal_error "link input file '$arg' does not exist"
+	  fi
+	  arg=$save_arg
+	  prev=
+	  continue
+	  ;;
+	os2dllname)
+	  os2dllname=$arg
+	  prev=
+	  continue
+	  ;;
+	precious_regex)
+	  precious_files_regex=$arg
+	  prev=
+	  continue
+	  ;;
+	release)
+	  release=-$arg
+	  prev=
+	  continue
+	  ;;
+	rpath | xrpath)
+	  # We need an absolute path.
+	  case $arg in
+	  [\\/]* | [A-Za-z]:[\\/]*) ;;
+	  *)
+	    func_fatal_error "only absolute run-paths are allowed"
+	    ;;
+	  esac
+	  if test rpath = "$prev"; then
+	    case "$rpath " in
+	    *" $arg "*) ;;
+	    *) func_append rpath " $arg" ;;
+	    esac
+	  else
+	    case "$xrpath " in
+	    *" $arg "*) ;;
+	    *) func_append xrpath " $arg" ;;
+	    esac
+	  fi
+	  prev=
+	  continue
+	  ;;
+	shrext)
+	  shrext_cmds=$arg
+	  prev=
+	  continue
+	  ;;
+	weak)
+	  func_append weak_libs " $arg"
+	  prev=
+	  continue
+	  ;;
+	xcclinker)
+	  func_append linker_flags " $qarg"
+	  func_append compiler_flags " $qarg"
+	  prev=
+	  func_append compile_command " $qarg"
+	  func_append finalize_command " $qarg"
+	  continue
+	  ;;
+	xcompiler)
+	  func_append compiler_flags " $qarg"
+	  prev=
+	  func_append compile_command " $qarg"
+	  func_append finalize_command " $qarg"
+	  continue
+	  ;;
+	xlinker)
+	  func_append linker_flags " $qarg"
+	  func_append compiler_flags " $wl$qarg"
+	  prev=
+	  func_append compile_command " $wl$qarg"
+	  func_append finalize_command " $wl$qarg"
+	  continue
+	  ;;
+	*)
+	  eval "$prev=\"\$arg\""
+	  prev=
+	  continue
+	  ;;
+	esac
+      fi # test -n "$prev"
+
+      prevarg=$arg
+
+      case $arg in
+      -all-static)
+	if test -n "$link_static_flag"; then
+	  # See comment for -static flag below, for more details.
+	  func_append compile_command " $link_static_flag"
+	  func_append finalize_command " $link_static_flag"
+	fi
+	continue
+	;;
+
+      -allow-undefined)
+	# FIXME: remove this flag sometime in the future.
+	func_fatal_error "'-allow-undefined' must not be used because it is the default"
+	;;
+
+      -avoid-version)
+	avoid_version=yes
+	continue
+	;;
+
+      -bindir)
+	prev=bindir
+	continue
+	;;
+
+      -dlopen)
+	prev=dlfiles
+	continue
+	;;
+
+      -dlpreopen)
+	prev=dlprefiles
+	continue
+	;;
+
+      -export-dynamic)
+	export_dynamic=yes
+	continue
+	;;
+
+      -export-symbols | -export-symbols-regex)
+	if test -n "$export_symbols" || test -n "$export_symbols_regex"; then
+	  func_fatal_error "more than one -exported-symbols argument is not allowed"
+	fi
+	if test X-export-symbols = "X$arg"; then
+	  prev=expsyms
+	else
+	  prev=expsyms_regex
+	fi
+	continue
+	;;
+
+      -framework)
+	prev=framework
+	continue
+	;;
+
+      -inst-prefix-dir)
+	prev=inst_prefix
+	continue
+	;;
+
+      # The native IRIX linker understands -LANG:*, -LIST:* and -LNO:*
+      # so, if we see these flags be careful not to treat them like -L
+      -L[A-Z][A-Z]*:*)
+	case $with_gcc/$host in
+	no/*-*-irix* | /*-*-irix*)
+	  func_append compile_command " $arg"
+	  func_append finalize_command " $arg"
+	  ;;
+	esac
+	continue
+	;;
+
+      -L*)
+	func_stripname "-L" '' "$arg"
+	if test -z "$func_stripname_result"; then
+	  if test "$#" -gt 0; then
+	    func_fatal_error "require no space between '-L' and '$1'"
+	  else
+	    func_fatal_error "need path for '-L' option"
+	  fi
+	fi
+	func_resolve_sysroot "$func_stripname_result"
+	dir=$func_resolve_sysroot_result
+	# We need an absolute path.
+	case $dir in
+	[\\/]* | [A-Za-z]:[\\/]*) ;;
+	*)
+	  absdir=`cd "$dir" && pwd`
+	  test -z "$absdir" && \
+	    func_fatal_error "cannot determine absolute directory name of '$dir'"
+	  dir=$absdir
+	  ;;
+	esac
+	case "$deplibs " in
+	*" -L$dir "* | *" $arg "*)
+	  # Will only happen for absolute or sysroot arguments
+	  ;;
+	*)
+	  # Preserve sysroot, but never include relative directories
+	  case $dir in
+	    [\\/]* | [A-Za-z]:[\\/]* | =*) func_append deplibs " $arg" ;;
+	    *) func_append deplibs " -L$dir" ;;
+	  esac
+	  func_append lib_search_path " $dir"
+	  ;;
+	esac
+	case $host in
+	*-*-cygwin* | *-*-mingw* | *-*-pw32* | *-*-os2* | *-cegcc*)
+	  testbindir=`$ECHO "$dir" | $SED 's*/lib$*/bin*'`
+	  case :$dllsearchpath: in
+	  *":$dir:"*) ;;
+	  ::) dllsearchpath=$dir;;
+	  *) func_append dllsearchpath ":$dir";;
+	  esac
+	  case :$dllsearchpath: in
+	  *":$testbindir:"*) ;;
+	  ::) dllsearchpath=$testbindir;;
+	  *) func_append dllsearchpath ":$testbindir";;
+	  esac
+	  ;;
+	esac
+	continue
+	;;
+
+      -l*)
+	if test X-lc = "X$arg" || test X-lm = "X$arg"; then
+	  case $host in
+	  *-*-cygwin* | *-*-mingw* | *-*-pw32* | *-*-beos* | *-cegcc* | *-*-haiku*)
+	    # These systems don't actually have a C or math library (as such)
+	    continue
+	    ;;
+	  *-*-os2*)
+	    # These systems don't actually have a C library (as such)
+	    test X-lc = "X$arg" && continue
+	    ;;
+	  *-*-openbsd* | *-*-freebsd* | *-*-dragonfly* | *-*-bitrig*)
+	    # Do not include libc due to us having libc/libc_r.
+	    test X-lc = "X$arg" && continue
+	    ;;
+	  *-*-rhapsody* | *-*-darwin1.[012])
+	    # Rhapsody C and math libraries are in the System framework
+	    func_append deplibs " System.ltframework"
+	    continue
+	    ;;
+	  *-*-sco3.2v5* | *-*-sco5v6*)
+	    # Causes problems with __ctype
+	    test X-lc = "X$arg" && continue
+	    ;;
+	  *-*-sysv4.2uw2* | *-*-sysv5* | *-*-unixware* | *-*-OpenUNIX*)
+	    # Compiler inserts libc in the correct place for threads to work
+	    test X-lc = "X$arg" && continue
+	    ;;
+	  esac
+	elif test X-lc_r = "X$arg"; then
+	 case $host in
+	 *-*-openbsd* | *-*-freebsd* | *-*-dragonfly* | *-*-bitrig*)
+	   # Do not include libc_r directly, use -pthread flag.
+	   continue
+	   ;;
+	 esac
+	fi
+	func_append deplibs " $arg"
+	continue
+	;;
+
+      -mllvm)
+	prev=mllvm
+	continue
+	;;
+
+      -module)
+	module=yes
+	continue
+	;;
+
+      # Tru64 UNIX uses -model [arg] to determine the layout of C++
+      # classes, name mangling, and exception handling.
+      # Darwin uses the -arch flag to determine output architecture.
+      -model|-arch|-isysroot|--sysroot)
+	func_append compiler_flags " $arg"
+	func_append compile_command " $arg"
+	func_append finalize_command " $arg"
+	prev=xcompiler
+	continue
+	;;
+
+      -mt|-mthreads|-kthread|-Kthread|-pthread|-pthreads|--thread-safe \
+      |-threads|-fopenmp|-openmp|-mp|-xopenmp|-omp|-qsmp=*)
+	func_append compiler_flags " $arg"
+	func_append compile_command " $arg"
+	func_append finalize_command " $arg"
+	case "$new_inherited_linker_flags " in
+	    *" $arg "*) ;;
+	    * ) func_append new_inherited_linker_flags " $arg" ;;
+	esac
+	continue
+	;;
+
+      -multi_module)
+	single_module=$wl-multi_module
+	continue
+	;;
+
+      -no-fast-install)
+	fast_install=no
+	continue
+	;;
+
+      -no-install)
+	case $host in
+	*-*-cygwin* | *-*-mingw* | *-*-pw32* | *-*-os2* | *-*-darwin* | *-cegcc*)
+	  # The PATH hackery in wrapper scripts is required on Windows
+	  # and Darwin in order for the loader to find any dlls it needs.
+	  func_warning "'-no-install' is ignored for $host"
+	  func_warning "assuming '-no-fast-install' instead"
+	  fast_install=no
+	  ;;
+	*) no_install=yes ;;
+	esac
+	continue
+	;;
+
+      -no-undefined)
+	allow_undefined=no
+	continue
+	;;
+
+      -objectlist)
+	prev=objectlist
+	continue
+	;;
+
+      -os2dllname)
+	prev=os2dllname
+	continue
+	;;
+
+      -o) prev=output ;;
+
+      -precious-files-regex)
+	prev=precious_regex
+	continue
+	;;
+
+      -release)
+	prev=release
+	continue
+	;;
+
+      -rpath)
+	prev=rpath
+	continue
+	;;
+
+      -R)
+	prev=xrpath
+	continue
+	;;
+
+      -R*)
+	func_stripname '-R' '' "$arg"
+	dir=$func_stripname_result
+	# We need an absolute path.
+	case $dir in
+	[\\/]* | [A-Za-z]:[\\/]*) ;;
+	=*)
+	  func_stripname '=' '' "$dir"
+	  dir=$lt_sysroot$func_stripname_result
+	  ;;
+	*)
+	  func_fatal_error "only absolute run-paths are allowed"
+	  ;;
+	esac
+	case "$xrpath " in
+	*" $dir "*) ;;
+	*) func_append xrpath " $dir" ;;
+	esac
+	continue
+	;;
+
+      -shared)
+	# The effects of -shared are defined in a previous loop.
+	continue
+	;;
+
+      -shrext)
+	prev=shrext
+	continue
+	;;
+
+      -static | -static-libtool-libs)
+	# The effects of -static are defined in a previous loop.
+	# We used to do the same as -all-static on platforms that
+	# didn't have a PIC flag, but the assumption that the effects
+	# would be equivalent was wrong.  It would break on at least
+	# Digital Unix and AIX.
+	continue
+	;;
+
+      -thread-safe)
+	thread_safe=yes
+	continue
+	;;
+
+      -version-info)
+	prev=vinfo
+	continue
+	;;
+
+      -version-number)
+	prev=vinfo
+	vinfo_number=yes
+	continue
+	;;
+
+      -weak)
+        prev=weak
+	continue
+	;;
+
+      -Wc,*)
+	func_stripname '-Wc,' '' "$arg"
+	args=$func_stripname_result
+	arg=
+	save_ifs=$IFS; IFS=,
+	for flag in $args; do
+	  IFS=$save_ifs
+          func_quote_for_eval "$flag"
+	  func_append arg " $func_quote_for_eval_result"
+	  func_append compiler_flags " $func_quote_for_eval_result"
+	done
+	IFS=$save_ifs
+	func_stripname ' ' '' "$arg"
+	arg=$func_stripname_result
+	;;
+
+      -Wl,*)
+	func_stripname '-Wl,' '' "$arg"
+	args=$func_stripname_result
+	arg=
+	save_ifs=$IFS; IFS=,
+	for flag in $args; do
+	  IFS=$save_ifs
+          func_quote_for_eval "$flag"
+	  func_append arg " $wl$func_quote_for_eval_result"
+	  func_append compiler_flags " $wl$func_quote_for_eval_result"
+	  func_append linker_flags " $func_quote_for_eval_result"
+	done
+	IFS=$save_ifs
+	func_stripname ' ' '' "$arg"
+	arg=$func_stripname_result
+	;;
+
+      -Xcompiler)
+	prev=xcompiler
+	continue
+	;;
+
+      -Xlinker)
+	prev=xlinker
+	continue
+	;;
+
+      -XCClinker)
+	prev=xcclinker
+	continue
+	;;
+
+      # -msg_* for osf cc
+      -msg_*)
+	func_quote_for_eval "$arg"
+	arg=$func_quote_for_eval_result
+	;;
+
+      # Flags to be passed through unchanged, with rationale:
+      # -64, -mips[0-9]      enable 64-bit mode for the SGI compiler
+      # -r[0-9][0-9]*        specify processor for the SGI compiler
+      # -xarch=*, -xtarget=* enable 64-bit mode for the Sun compiler
+      # +DA*, +DD*           enable 64-bit mode for the HP compiler
+      # -q*                  compiler args for the IBM compiler
+      # -m*, -t[45]*, -txscale* architecture-specific flags for GCC
+      # -F/path              path to uninstalled frameworks, gcc on darwin
+      # -p, -pg, --coverage, -fprofile-*  profiling flags for GCC
+      # -fstack-protector*   stack protector flags for GCC
+      # @file                GCC response files
+      # -tp=*                Portland pgcc target processor selection
+      # --sysroot=*          for sysroot support
+      # -O*, -g*, -flto*, -fwhopr*, -fuse-linker-plugin GCC link-time optimization
+      # -specs=*             GCC specs files
+      # -stdlib=*            select c++ std lib with clang
+      -64|-mips[0-9]|-r[0-9][0-9]*|-xarch=*|-xtarget=*|+DA*|+DD*|-q*|-m*| \
+      -t[45]*|-txscale*|-p|-pg|--coverage|-fprofile-*|-F*|@*|-tp=*|--sysroot=*| \
+      -O*|-g*|-flto*|-fwhopr*|-fuse-linker-plugin|-fstack-protector*|-stdlib=*| \
+      -specs=*)
+        func_quote_for_eval "$arg"
+	arg=$func_quote_for_eval_result
+        func_append compile_command " $arg"
+        func_append finalize_command " $arg"
+        func_append compiler_flags " $arg"
+        continue
+        ;;
+
+      -Z*)
+        if test os2 = "`expr $host : '.*\(os2\)'`"; then
+          # OS/2 uses -Zxxx to specify OS/2-specific options
+	  compiler_flags="$compiler_flags $arg"
+	  func_append compile_command " $arg"
+	  func_append finalize_command " $arg"
+	  case $arg in
+	  -Zlinker | -Zstack)
+	    prev=xcompiler
+	    ;;
+	  esac
+	  continue
+        else
+	  # Otherwise treat like 'Some other compiler flag' below
+	  func_quote_for_eval "$arg"
+	  arg=$func_quote_for_eval_result
+        fi
+	;;
+
+      # Some other compiler flag.
+      -* | +*)
+        func_quote_for_eval "$arg"
+	arg=$func_quote_for_eval_result
+	;;
+
+      *.$objext)
+	# A standard object.
+	func_append objs " $arg"
+	;;
+
+      *.lo)
+	# A libtool-controlled object.
+
+	# Check to see that this really is a libtool object.
+	if func_lalib_unsafe_p "$arg"; then
+	  pic_object=
+	  non_pic_object=
+
+	  # Read the .lo file
+	  func_source "$arg"
+
+	  if test -z "$pic_object" ||
+	     test -z "$non_pic_object" ||
+	     test none = "$pic_object" &&
+	     test none = "$non_pic_object"; then
+	    func_fatal_error "cannot find name of object for '$arg'"
+	  fi
+
+	  # Extract subdirectory from the argument.
+	  func_dirname "$arg" "/" ""
+	  xdir=$func_dirname_result
+
+	  test none = "$pic_object" || {
+	    # Prepend the subdirectory the object is found in.
+	    pic_object=$xdir$pic_object
+
+	    if test dlfiles = "$prev"; then
+	      if test yes = "$build_libtool_libs" && test yes = "$dlopen_support"; then
+		func_append dlfiles " $pic_object"
+		prev=
+		continue
+	      else
+		# If libtool objects are unsupported, then we need to preload.
+		prev=dlprefiles
+	      fi
+	    fi
+
+	    # CHECK ME:  I think I busted this.  -Ossama
+	    if test dlprefiles = "$prev"; then
+	      # Preload the old-style object.
+	      func_append dlprefiles " $pic_object"
+	      prev=
+	    fi
+
+	    # A PIC object.
+	    func_append libobjs " $pic_object"
+	    arg=$pic_object
+	  }
+
+	  # Non-PIC object.
+	  if test none != "$non_pic_object"; then
+	    # Prepend the subdirectory the object is found in.
+	    non_pic_object=$xdir$non_pic_object
+
+	    # A standard non-PIC object
+	    func_append non_pic_objects " $non_pic_object"
+	    if test -z "$pic_object" || test none = "$pic_object"; then
+	      arg=$non_pic_object
+	    fi
+	  else
+	    # If the PIC object exists, use it instead.
+	    # $xdir was prepended to $pic_object above.
+	    non_pic_object=$pic_object
+	    func_append non_pic_objects " $non_pic_object"
+	  fi
+	else
+	  # Only an error if not doing a dry-run.
+	  if $opt_dry_run; then
+	    # Extract subdirectory from the argument.
+	    func_dirname "$arg" "/" ""
+	    xdir=$func_dirname_result
+
+	    func_lo2o "$arg"
+	    pic_object=$xdir$objdir/$func_lo2o_result
+	    non_pic_object=$xdir$func_lo2o_result
+	    func_append libobjs " $pic_object"
+	    func_append non_pic_objects " $non_pic_object"
+	  else
+	    func_fatal_error "'$arg' is not a valid libtool object"
+	  fi
+	fi
+	;;
+
+      *.$libext)
+	# An archive.
+	func_append deplibs " $arg"
+	func_append old_deplibs " $arg"
+	continue
+	;;
+
+      *.la)
+	# A libtool-controlled library.
+
+	func_resolve_sysroot "$arg"
+	if test dlfiles = "$prev"; then
+	  # This library was specified with -dlopen.
+	  func_append dlfiles " $func_resolve_sysroot_result"
+	  prev=
+	elif test dlprefiles = "$prev"; then
+	  # The library was specified with -dlpreopen.
+	  func_append dlprefiles " $func_resolve_sysroot_result"
+	  prev=
+	else
+	  func_append deplibs " $func_resolve_sysroot_result"
+	fi
+	continue
+	;;
+
+      # Some other compiler argument.
+      *)
+	# Unknown arguments in both finalize_command and compile_command need
+	# to be aesthetically quoted because they are evaled later.
+	func_quote_for_eval "$arg"
+	arg=$func_quote_for_eval_result
+	;;
+      esac # arg
+
+      # Now actually substitute the argument into the commands.
+      if test -n "$arg"; then
+	func_append compile_command " $arg"
+	func_append finalize_command " $arg"
+      fi
+    done # argument parsing loop
+
+    test -n "$prev" && \
+      func_fatal_help "the '$prevarg' option requires an argument"
+
+    if test yes = "$export_dynamic" && test -n "$export_dynamic_flag_spec"; then
+      eval arg=\"$export_dynamic_flag_spec\"
+      func_append compile_command " $arg"
+      func_append finalize_command " $arg"
+    fi
+
+    oldlibs=
+    # calculate the name of the file, without its directory
+    func_basename "$output"
+    outputname=$func_basename_result
+    libobjs_save=$libobjs
+
+    if test -n "$shlibpath_var"; then
+      # get the directories listed in $shlibpath_var
+      eval shlib_search_path=\`\$ECHO \"\$$shlibpath_var\" \| \$SED \'s/:/ /g\'\`
+    else
+      shlib_search_path=
+    fi
+    eval sys_lib_search_path=\"$sys_lib_search_path_spec\"
+    eval sys_lib_dlsearch_path=\"$sys_lib_dlsearch_path_spec\"
+
+    # Definition is injected by LT_CONFIG during libtool generation.
+    func_munge_path_list sys_lib_dlsearch_path "$LT_SYS_LIBRARY_PATH"
+
+    func_dirname "$output" "/" ""
+    output_objdir=$func_dirname_result$objdir
+    func_to_tool_file "$output_objdir/"
+    tool_output_objdir=$func_to_tool_file_result
+    # Create the object directory.
+    func_mkdir_p "$output_objdir"
+
+    # Determine the type of output
+    case $output in
+    "")
+      func_fatal_help "you must specify an output file"
+      ;;
+    *.$libext) linkmode=oldlib ;;
+    *.lo | *.$objext) linkmode=obj ;;
+    *.la) linkmode=lib ;;
+    *) linkmode=prog ;; # Anything else should be a program.
+    esac
+
+    specialdeplibs=
+
+    libs=
+    # Find all interdependent deplibs by searching for libraries
+    # that are linked more than once (e.g. -la -lb -la)
+    for deplib in $deplibs; do
+      if $opt_preserve_dup_deps; then
+	case "$libs " in
+	*" $deplib "*) func_append specialdeplibs " $deplib" ;;
+	esac
+      fi
+      func_append libs " $deplib"
+    done
+
+    if test lib = "$linkmode"; then
+      libs="$predeps $libs $compiler_lib_search_path $postdeps"
+
+      # Compute libraries that are listed more than once in $predeps
+      # $postdeps and mark them as special (i.e., whose duplicates are
+      # not to be eliminated).
+      pre_post_deps=
+      if $opt_duplicate_compiler_generated_deps; then
+	for pre_post_dep in $predeps $postdeps; do
+	  case "$pre_post_deps " in
+	  *" $pre_post_dep "*) func_append specialdeplibs " $pre_post_deps" ;;
+	  esac
+	  func_append pre_post_deps " $pre_post_dep"
+	done
+      fi
+      pre_post_deps=
+    fi
+
+    deplibs=
+    newdependency_libs=
+    newlib_search_path=
+    need_relink=no # whether we're linking any uninstalled libtool libraries
+    notinst_deplibs= # not-installed libtool libraries
+    notinst_path= # paths that contain not-installed libtool libraries
+
+    case $linkmode in
+    lib)
+	passes="conv dlpreopen link"
+	for file in $dlfiles $dlprefiles; do
+	  case $file in
+	  *.la) ;;
+	  *)
+	    func_fatal_help "libraries can '-dlopen' only libtool libraries: $file"
+	    ;;
+	  esac
+	done
+	;;
+    prog)
+	compile_deplibs=
+	finalize_deplibs=
+	alldeplibs=false
+	newdlfiles=
+	newdlprefiles=
+	passes="conv scan dlopen dlpreopen link"
+	;;
+    *)  passes="conv"
+	;;
+    esac
+
+    for pass in $passes; do
+      # The preopen pass in lib mode reverses $deplibs; put it back here
+      # so that -L comes before libs that need it for instance...
+      if test lib,link = "$linkmode,$pass"; then
+	## FIXME: Find the place where the list is rebuilt in the wrong
+	##        order, and fix it there properly
+        tmp_deplibs=
+	for deplib in $deplibs; do
+	  tmp_deplibs="$deplib $tmp_deplibs"
+	done
+	deplibs=$tmp_deplibs
+      fi
+
+      if test lib,link = "$linkmode,$pass" ||
+	 test prog,scan = "$linkmode,$pass"; then
+	libs=$deplibs
+	deplibs=
+      fi
+      if test prog = "$linkmode"; then
+	case $pass in
+	dlopen) libs=$dlfiles ;;
+	dlpreopen) libs=$dlprefiles ;;
+	link) libs="$deplibs %DEPLIBS% $dependency_libs" ;;
+	esac
+      fi
+      if test lib,dlpreopen = "$linkmode,$pass"; then
+	# Collect and forward deplibs of preopened libtool libs
+	for lib in $dlprefiles; do
+	  # Ignore non-libtool-libs
+	  dependency_libs=
+	  func_resolve_sysroot "$lib"
+	  case $lib in
+	  *.la)	func_source "$func_resolve_sysroot_result" ;;
+	  esac
+
+	  # Collect preopened libtool deplibs, except any this library
+	  # has declared as weak libs
+	  for deplib in $dependency_libs; do
+	    func_basename "$deplib"
+            deplib_base=$func_basename_result
+	    case " $weak_libs " in
+	    *" $deplib_base "*) ;;
+	    *) func_append deplibs " $deplib" ;;
+	    esac
+	  done
+	done
+	libs=$dlprefiles
+      fi
+      if test dlopen = "$pass"; then
+	# Collect dlpreopened libraries
+	save_deplibs=$deplibs
+	deplibs=
+      fi
+
+      for deplib in $libs; do
+	lib=
+	found=false
+	case $deplib in
+	-mt|-mthreads|-kthread|-Kthread|-pthread|-pthreads|--thread-safe \
+        |-threads|-fopenmp|-openmp|-mp|-xopenmp|-omp|-qsmp=*)
+	  if test prog,link = "$linkmode,$pass"; then
+	    compile_deplibs="$deplib $compile_deplibs"
+	    finalize_deplibs="$deplib $finalize_deplibs"
+	  else
+	    func_append compiler_flags " $deplib"
+	    if test lib = "$linkmode"; then
+		case "$new_inherited_linker_flags " in
+		    *" $deplib "*) ;;
+		    * ) func_append new_inherited_linker_flags " $deplib" ;;
+		esac
+	    fi
+	  fi
+	  continue
+	  ;;
+	-l*)
+	  if test lib != "$linkmode" && test prog != "$linkmode"; then
+	    func_warning "'-l' is ignored for archives/objects"
+	    continue
+	  fi
+	  func_stripname '-l' '' "$deplib"
+	  name=$func_stripname_result
+	  if test lib = "$linkmode"; then
+	    searchdirs="$newlib_search_path $lib_search_path $compiler_lib_search_dirs $sys_lib_search_path $shlib_search_path"
+	  else
+	    searchdirs="$newlib_search_path $lib_search_path $sys_lib_search_path $shlib_search_path"
+	  fi
+	  for searchdir in $searchdirs; do
+	    for search_ext in .la $std_shrext .so .a; do
+	      # Search the libtool library
+	      lib=$searchdir/lib$name$search_ext
+	      if test -f "$lib"; then
+		if test .la = "$search_ext"; then
+		  found=:
+		else
+		  found=false
+		fi
+		break 2
+	      fi
+	    done
+	  done
+	  if $found; then
+	    # deplib is a libtool library
+	    # If $allow_libtool_libs_with_static_runtimes && $deplib is a stdlib,
+	    # We need to do some special things here, and not later.
+	    if test yes = "$allow_libtool_libs_with_static_runtimes"; then
+	      case " $predeps $postdeps " in
+	      *" $deplib "*)
+		if func_lalib_p "$lib"; then
+		  library_names=
+		  old_library=
+		  func_source "$lib"
+		  for l in $old_library $library_names; do
+		    ll=$l
+		  done
+		  if test "X$ll" = "X$old_library"; then # only static version available
+		    found=false
+		    func_dirname "$lib" "" "."
+		    ladir=$func_dirname_result
+		    lib=$ladir/$old_library
+		    if test prog,link = "$linkmode,$pass"; then
+		      compile_deplibs="$deplib $compile_deplibs"
+		      finalize_deplibs="$deplib $finalize_deplibs"
+		    else
+		      deplibs="$deplib $deplibs"
+		      test lib = "$linkmode" && newdependency_libs="$deplib $newdependency_libs"
+		    fi
+		    continue
+		  fi
+		fi
+		;;
+	      *) ;;
+	      esac
+	    fi
+	  else
+	    # deplib doesn't seem to be a libtool library
+	    if test prog,link = "$linkmode,$pass"; then
+	      compile_deplibs="$deplib $compile_deplibs"
+	      finalize_deplibs="$deplib $finalize_deplibs"
+	    else
+	      deplibs="$deplib $deplibs"
+	      test lib = "$linkmode" && newdependency_libs="$deplib $newdependency_libs"
+	    fi
+	    continue
+	  fi
+	  ;; # -l
+	*.ltframework)
+	  if test prog,link = "$linkmode,$pass"; then
+	    compile_deplibs="$deplib $compile_deplibs"
+	    finalize_deplibs="$deplib $finalize_deplibs"
+	  else
+	    deplibs="$deplib $deplibs"
+	    if test lib = "$linkmode"; then
+		case "$new_inherited_linker_flags " in
+		    *" $deplib "*) ;;
+		    * ) func_append new_inherited_linker_flags " $deplib" ;;
+		esac
+	    fi
+	  fi
+	  continue
+	  ;;
+	-L*)
+	  case $linkmode in
+	  lib)
+	    deplibs="$deplib $deplibs"
+	    test conv = "$pass" && continue
+	    newdependency_libs="$deplib $newdependency_libs"
+	    func_stripname '-L' '' "$deplib"
+	    func_resolve_sysroot "$func_stripname_result"
+	    func_append newlib_search_path " $func_resolve_sysroot_result"
+	    ;;
+	  prog)
+	    if test conv = "$pass"; then
+	      deplibs="$deplib $deplibs"
+	      continue
+	    fi
+	    if test scan = "$pass"; then
+	      deplibs="$deplib $deplibs"
+	    else
+	      compile_deplibs="$deplib $compile_deplibs"
+	      finalize_deplibs="$deplib $finalize_deplibs"
+	    fi
+	    func_stripname '-L' '' "$deplib"
+	    func_resolve_sysroot "$func_stripname_result"
+	    func_append newlib_search_path " $func_resolve_sysroot_result"
+	    ;;
+	  *)
+	    func_warning "'-L' is ignored for archives/objects"
+	    ;;
+	  esac # linkmode
+	  continue
+	  ;; # -L
+	-R*)
+	  if test link = "$pass"; then
+	    func_stripname '-R' '' "$deplib"
+	    func_resolve_sysroot "$func_stripname_result"
+	    dir=$func_resolve_sysroot_result
+	    # Make sure the xrpath contains only unique directories.
+	    case "$xrpath " in
+	    *" $dir "*) ;;
+	    *) func_append xrpath " $dir" ;;
+	    esac
+	  fi
+	  deplibs="$deplib $deplibs"
+	  continue
+	  ;;
+	*.la)
+	  func_resolve_sysroot "$deplib"
+	  lib=$func_resolve_sysroot_result
+	  ;;
+	*.$libext)
+	  if test conv = "$pass"; then
+	    deplibs="$deplib $deplibs"
+	    continue
+	  fi
+	  case $linkmode in
+	  lib)
+	    # Linking convenience modules into shared libraries is allowed,
+	    # but linking other static libraries is non-portable.
+	    case " $dlpreconveniencelibs " in
+	    *" $deplib "*) ;;
+	    *)
+	      valid_a_lib=false
+	      case $deplibs_check_method in
+		match_pattern*)
+		  set dummy $deplibs_check_method; shift
+		  match_pattern_regex=`expr "$deplibs_check_method" : "$1 \(.*\)"`
+		  if eval "\$ECHO \"$deplib\"" 2>/dev/null | $SED 10q \
+		    | $EGREP "$match_pattern_regex" > /dev/null; then
+		    valid_a_lib=:
+		  fi
+		;;
+		pass_all)
+		  valid_a_lib=:
+		;;
+	      esac
+	      if $valid_a_lib; then
+		echo
+		$ECHO "*** Warning: Linking the shared library $output against the"
+		$ECHO "*** static library $deplib is not portable!"
+		deplibs="$deplib $deplibs"
+	      else
+		echo
+		$ECHO "*** Warning: Trying to link with static lib archive $deplib."
+		echo "*** I have the capability to make that library automatically link in when"
+		echo "*** you link to this library.  But I can only do this if you have a"
+		echo "*** shared version of the library, which you do not appear to have"
+		echo "*** because the file extensions .$libext of this argument makes me believe"
+		echo "*** that it is just a static archive that I should not use here."
+	      fi
+	      ;;
+	    esac
+	    continue
+	    ;;
+	  prog)
+	    if test link != "$pass"; then
+	      deplibs="$deplib $deplibs"
+	    else
+	      compile_deplibs="$deplib $compile_deplibs"
+	      finalize_deplibs="$deplib $finalize_deplibs"
+	    fi
+	    continue
+	    ;;
+	  esac # linkmode
+	  ;; # *.$libext
+	*.lo | *.$objext)
+	  if test conv = "$pass"; then
+	    deplibs="$deplib $deplibs"
+	  elif test prog = "$linkmode"; then
+	    if test dlpreopen = "$pass" || test yes != "$dlopen_support" || test no = "$build_libtool_libs"; then
+	      # If there is no dlopen support or we're linking statically,
+	      # we need to preload.
+	      func_append newdlprefiles " $deplib"
+	      compile_deplibs="$deplib $compile_deplibs"
+	      finalize_deplibs="$deplib $finalize_deplibs"
+	    else
+	      func_append newdlfiles " $deplib"
+	    fi
+	  fi
+	  continue
+	  ;;
+	%DEPLIBS%)
+	  alldeplibs=:
+	  continue
+	  ;;
+	esac # case $deplib
+
+	$found || test -f "$lib" \
+	  || func_fatal_error "cannot find the library '$lib' or unhandled argument '$deplib'"
+
+	# Check to see that this really is a libtool archive.
+	func_lalib_unsafe_p "$lib" \
+	  || func_fatal_error "'$lib' is not a valid libtool archive"
+
+	func_dirname "$lib" "" "."
+	ladir=$func_dirname_result
+
+	dlname=
+	dlopen=
+	dlpreopen=
+	libdir=
+	library_names=
+	old_library=
+	inherited_linker_flags=
+	# If the library was installed with an old release of libtool,
+	# it will not redefine variables installed, or shouldnotlink
+	installed=yes
+	shouldnotlink=no
+	avoidtemprpath=
+
+
+	# Read the .la file
+	func_source "$lib"
+
+	# Convert "-framework foo" to "foo.ltframework"
+	if test -n "$inherited_linker_flags"; then
+	  tmp_inherited_linker_flags=`$ECHO "$inherited_linker_flags" | $SED 's/-framework \([^ $]*\)/\1.ltframework/g'`
+	  for tmp_inherited_linker_flag in $tmp_inherited_linker_flags; do
+	    case " $new_inherited_linker_flags " in
+	      *" $tmp_inherited_linker_flag "*) ;;
+	      *) func_append new_inherited_linker_flags " $tmp_inherited_linker_flag";;
+	    esac
+	  done
+	fi
+	dependency_libs=`$ECHO " $dependency_libs" | $SED 's% \([^ $]*\).ltframework% -framework \1%g'`
+	if test lib,link = "$linkmode,$pass" ||
+	   test prog,scan = "$linkmode,$pass" ||
+	   { test prog != "$linkmode" && test lib != "$linkmode"; }; then
+	  test -n "$dlopen" && func_append dlfiles " $dlopen"
+	  test -n "$dlpreopen" && func_append dlprefiles " $dlpreopen"
+	fi
+
+	if test conv = "$pass"; then
+	  # Only check for convenience libraries
+	  deplibs="$lib $deplibs"
+	  if test -z "$libdir"; then
+	    if test -z "$old_library"; then
+	      func_fatal_error "cannot find name of link library for '$lib'"
+	    fi
+	    # It is a libtool convenience library, so add in its objects.
+	    func_append convenience " $ladir/$objdir/$old_library"
+	    func_append old_convenience " $ladir/$objdir/$old_library"
+	  elif test prog != "$linkmode" && test lib != "$linkmode"; then
+	    func_fatal_error "'$lib' is not a convenience library"
+	  fi
+	  tmp_libs=
+	  for deplib in $dependency_libs; do
+	    deplibs="$deplib $deplibs"
+	    if $opt_preserve_dup_deps; then
+	      case "$tmp_libs " in
+	      *" $deplib "*) func_append specialdeplibs " $deplib" ;;
+	      esac
+	    fi
+	    func_append tmp_libs " $deplib"
+	  done
+	  continue
+	fi # $pass = conv
+
+
+	# Get the name of the library we link against.
+	linklib=
+	if test -n "$old_library" &&
+	   { test yes = "$prefer_static_libs" ||
+	     test built,no = "$prefer_static_libs,$installed"; }; then
+	  linklib=$old_library
+	else
+	  for l in $old_library $library_names; do
+	    linklib=$l
+	  done
+	fi
+	if test -z "$linklib"; then
+	  func_fatal_error "cannot find name of link library for '$lib'"
+	fi
+
+	# This library was specified with -dlopen.
+	if test dlopen = "$pass"; then
+	  test -z "$libdir" \
+	    && func_fatal_error "cannot -dlopen a convenience library: '$lib'"
+	  if test -z "$dlname" ||
+	     test yes != "$dlopen_support" ||
+	     test no = "$build_libtool_libs"
+	  then
+	    # If there is no dlname, no dlopen support or we're linking
+	    # statically, we need to preload.  We also need to preload any
+	    # dependent libraries so libltdl's deplib preloader doesn't
+	    # bomb out in the load deplibs phase.
+	    func_append dlprefiles " $lib $dependency_libs"
+	  else
+	    func_append newdlfiles " $lib"
+	  fi
+	  continue
+	fi # $pass = dlopen
+
+	# We need an absolute path.
+	case $ladir in
+	[\\/]* | [A-Za-z]:[\\/]*) abs_ladir=$ladir ;;
+	*)
+	  abs_ladir=`cd "$ladir" && pwd`
+	  if test -z "$abs_ladir"; then
+	    func_warning "cannot determine absolute directory name of '$ladir'"
+	    func_warning "passing it literally to the linker, although it might fail"
+	    abs_ladir=$ladir
+	  fi
+	  ;;
+	esac
+	func_basename "$lib"
+	laname=$func_basename_result
+
+	# Find the relevant object directory and library name.
+	if test yes = "$installed"; then
+	  if test ! -f "$lt_sysroot$libdir/$linklib" && test -f "$abs_ladir/$linklib"; then
+	    func_warning "library '$lib' was moved."
+	    dir=$ladir
+	    absdir=$abs_ladir
+	    libdir=$abs_ladir
+	  else
+	    dir=$lt_sysroot$libdir
+	    absdir=$lt_sysroot$libdir
+	  fi
+	  test yes = "$hardcode_automatic" && avoidtemprpath=yes
+	else
+	  if test ! -f "$ladir/$objdir/$linklib" && test -f "$abs_ladir/$linklib"; then
+	    dir=$ladir
+	    absdir=$abs_ladir
+	    # Remove this search path later
+	    func_append notinst_path " $abs_ladir"
+	  else
+	    dir=$ladir/$objdir
+	    absdir=$abs_ladir/$objdir
+	    # Remove this search path later
+	    func_append notinst_path " $abs_ladir"
+	  fi
+	fi # $installed = yes
+	func_stripname 'lib' '.la' "$laname"
+	name=$func_stripname_result
+
+	# This library was specified with -dlpreopen.
+	if test dlpreopen = "$pass"; then
+	  if test -z "$libdir" && test prog = "$linkmode"; then
+	    func_fatal_error "only libraries may -dlpreopen a convenience library: '$lib'"
+	  fi
+	  case $host in
+	    # special handling for platforms with PE-DLLs.
+	    *cygwin* | *mingw* | *cegcc* )
+	      # Linker will automatically link against shared library if both
+	      # static and shared are present.  Therefore, ensure we extract
+	      # symbols from the import library if a shared library is present
+	      # (otherwise, the dlopen module name will be incorrect).  We do
+	      # this by putting the import library name into $newdlprefiles.
+	      # We recover the dlopen module name by 'saving' the la file
+	      # name in a special purpose variable, and (later) extracting the
+	      # dlname from the la file.
+	      if test -n "$dlname"; then
+	        func_tr_sh "$dir/$linklib"
+	        eval "libfile_$func_tr_sh_result=\$abs_ladir/\$laname"
+	        func_append newdlprefiles " $dir/$linklib"
+	      else
+	        func_append newdlprefiles " $dir/$old_library"
+	        # Keep a list of preopened convenience libraries to check
+	        # that they are being used correctly in the link pass.
+	        test -z "$libdir" && \
+	          func_append dlpreconveniencelibs " $dir/$old_library"
+	      fi
+	    ;;
+	    * )
+	      # Prefer using a static library (so that no silly _DYNAMIC symbols
+	      # are required to link).
+	      if test -n "$old_library"; then
+	        func_append newdlprefiles " $dir/$old_library"
+	        # Keep a list of preopened convenience libraries to check
+	        # that they are being used correctly in the link pass.
+	        test -z "$libdir" && \
+	          func_append dlpreconveniencelibs " $dir/$old_library"
+	      # Otherwise, use the dlname, so that lt_dlopen finds it.
+	      elif test -n "$dlname"; then
+	        func_append newdlprefiles " $dir/$dlname"
+	      else
+	        func_append newdlprefiles " $dir/$linklib"
+	      fi
+	    ;;
+	  esac
+	fi # $pass = dlpreopen
+
+	if test -z "$libdir"; then
+	  # Link the convenience library
+	  if test lib = "$linkmode"; then
+	    deplibs="$dir/$old_library $deplibs"
+	  elif test prog,link = "$linkmode,$pass"; then
+	    compile_deplibs="$dir/$old_library $compile_deplibs"
+	    finalize_deplibs="$dir/$old_library $finalize_deplibs"
+	  else
+	    deplibs="$lib $deplibs" # used for prog,scan pass
+	  fi
+	  continue
+	fi
+
+
+	if test prog = "$linkmode" && test link != "$pass"; then
+	  func_append newlib_search_path " $ladir"
+	  deplibs="$lib $deplibs"
+
+	  linkalldeplibs=false
+	  if test no != "$link_all_deplibs" || test -z "$library_names" ||
+	     test no = "$build_libtool_libs"; then
+	    linkalldeplibs=:
+	  fi
+
+	  tmp_libs=
+	  for deplib in $dependency_libs; do
+	    case $deplib in
+	    -L*) func_stripname '-L' '' "$deplib"
+	         func_resolve_sysroot "$func_stripname_result"
+	         func_append newlib_search_path " $func_resolve_sysroot_result"
+		 ;;
+	    esac
+	    # Need to link against all dependency_libs?
+	    if $linkalldeplibs; then
+	      deplibs="$deplib $deplibs"
+	    else
+	      # Need to hardcode shared library paths
+	      # or/and link against static libraries
+	      newdependency_libs="$deplib $newdependency_libs"
+	    fi
+	    if $opt_preserve_dup_deps; then
+	      case "$tmp_libs " in
+	      *" $deplib "*) func_append specialdeplibs " $deplib" ;;
+	      esac
+	    fi
+	    func_append tmp_libs " $deplib"
+	  done # for deplib
+	  continue
+	fi # $linkmode = prog...
+
+	if test prog,link = "$linkmode,$pass"; then
+	  if test -n "$library_names" &&
+	     { { test no = "$prefer_static_libs" ||
+	         test built,yes = "$prefer_static_libs,$installed"; } ||
+	       test -z "$old_library"; }; then
+	    # We need to hardcode the library path
+	    if test -n "$shlibpath_var" && test -z "$avoidtemprpath"; then
+	      # Make sure the rpath contains only unique directories.
+	      case $temp_rpath: in
+	      *"$absdir:"*) ;;
+	      *) func_append temp_rpath "$absdir:" ;;
+	      esac
+	    fi
+
+	    # Hardcode the library path.
+	    # Skip directories that are in the system default run-time
+	    # search path.
+	    case " $sys_lib_dlsearch_path " in
+	    *" $absdir "*) ;;
+	    *)
+	      case "$compile_rpath " in
+	      *" $absdir "*) ;;
+	      *) func_append compile_rpath " $absdir" ;;
+	      esac
+	      ;;
+	    esac
+	    case " $sys_lib_dlsearch_path " in
+	    *" $libdir "*) ;;
+	    *)
+	      case "$finalize_rpath " in
+	      *" $libdir "*) ;;
+	      *) func_append finalize_rpath " $libdir" ;;
+	      esac
+	      ;;
+	    esac
+	  fi # $linkmode,$pass = prog,link...
+
+	  if $alldeplibs &&
+	     { test pass_all = "$deplibs_check_method" ||
+	       { test yes = "$build_libtool_libs" &&
+		 test -n "$library_names"; }; }; then
+	    # We only need to search for static libraries
+	    continue
+	  fi
+	fi
+
+	link_static=no # Whether the deplib will be linked statically
+	use_static_libs=$prefer_static_libs
+	if test built = "$use_static_libs" && test yes = "$installed"; then
+	  use_static_libs=no
+	fi
+	if test -n "$library_names" &&
+	   { test no = "$use_static_libs" || test -z "$old_library"; }; then
+	  case $host in
+	  *cygwin* | *mingw* | *cegcc* | *os2*)
+	      # No point in relinking DLLs because paths are not encoded
+	      func_append notinst_deplibs " $lib"
+	      need_relink=no
+	    ;;
+	  *)
+	    if test no = "$installed"; then
+	      func_append notinst_deplibs " $lib"
+	      need_relink=yes
+	    fi
+	    ;;
+	  esac
+	  # This is a shared library
+
+	  # Warn about portability, can't link against -module's on some
+	  # systems (darwin).  Don't bleat about dlopened modules though!
+	  dlopenmodule=
+	  for dlpremoduletest in $dlprefiles; do
+	    if test "X$dlpremoduletest" = "X$lib"; then
+	      dlopenmodule=$dlpremoduletest
+	      break
+	    fi
+	  done
+	  if test -z "$dlopenmodule" && test yes = "$shouldnotlink" && test link = "$pass"; then
+	    echo
+	    if test prog = "$linkmode"; then
+	      $ECHO "*** Warning: Linking the executable $output against the loadable module"
+	    else
+	      $ECHO "*** Warning: Linking the shared library $output against the loadable module"
+	    fi
+	    $ECHO "*** $linklib is not portable!"
+	  fi
+	  if test lib = "$linkmode" &&
+	     test yes = "$hardcode_into_libs"; then
+	    # Hardcode the library path.
+	    # Skip directories that are in the system default run-time
+	    # search path.
+	    case " $sys_lib_dlsearch_path " in
+	    *" $absdir "*) ;;
+	    *)
+	      case "$compile_rpath " in
+	      *" $absdir "*) ;;
+	      *) func_append compile_rpath " $absdir" ;;
+	      esac
+	      ;;
+	    esac
+	    case " $sys_lib_dlsearch_path " in
+	    *" $libdir "*) ;;
+	    *)
+	      case "$finalize_rpath " in
+	      *" $libdir "*) ;;
+	      *) func_append finalize_rpath " $libdir" ;;
+	      esac
+	      ;;
+	    esac
+	  fi
+
+	  if test -n "$old_archive_from_expsyms_cmds"; then
+	    # figure out the soname
+	    set dummy $library_names
+	    shift
+	    realname=$1
+	    shift
+	    libname=`eval "\\$ECHO \"$libname_spec\""`
+	    # use dlname if we got it. it's perfectly good, no?
+	    if test -n "$dlname"; then
+	      soname=$dlname
+	    elif test -n "$soname_spec"; then
+	      # bleh windows
+	      case $host in
+	      *cygwin* | mingw* | *cegcc* | *os2*)
+	        func_arith $current - $age
+		major=$func_arith_result
+		versuffix=-$major
+		;;
+	      esac
+	      eval soname=\"$soname_spec\"
+	    else
+	      soname=$realname
+	    fi
+
+	    # Make a new name for the extract_expsyms_cmds to use
+	    soroot=$soname
+	    func_basename "$soroot"
+	    soname=$func_basename_result
+	    func_stripname 'lib' '.dll' "$soname"
+	    newlib=libimp-$func_stripname_result.a
+
+	    # If the library has no export list, then create one now
+	    if test -f "$output_objdir/$soname-def"; then :
+	    else
+	      func_verbose "extracting exported symbol list from '$soname'"
+	      func_execute_cmds "$extract_expsyms_cmds" 'exit $?'
+	    fi
+
+	    # Create $newlib
+	    if test -f "$output_objdir/$newlib"; then :; else
+	      func_verbose "generating import library for '$soname'"
+	      func_execute_cmds "$old_archive_from_expsyms_cmds" 'exit $?'
+	    fi
+	    # make sure the library variables are pointing to the new library
+	    dir=$output_objdir
+	    linklib=$newlib
+	  fi # test -n "$old_archive_from_expsyms_cmds"
+
+	  if test prog = "$linkmode" || test relink != "$opt_mode"; then
+	    add_shlibpath=
+	    add_dir=
+	    add=
+	    lib_linked=yes
+	    case $hardcode_action in
+	    immediate | unsupported)
+	      if test no = "$hardcode_direct"; then
+		add=$dir/$linklib
+		case $host in
+		  *-*-sco3.2v5.0.[024]*) add_dir=-L$dir ;;
+		  *-*-sysv4*uw2*) add_dir=-L$dir ;;
+		  *-*-sysv5OpenUNIX* | *-*-sysv5UnixWare7.[01].[10]* | \
+		    *-*-unixware7*) add_dir=-L$dir ;;
+		  *-*-darwin* )
+		    # if the lib is a (non-dlopened) module then we cannot
+		    # link against it, someone is ignoring the earlier warnings
+		    if /usr/bin/file -L $add 2> /dev/null |
+			 $GREP ": [^:]* bundle" >/dev/null; then
+		      if test "X$dlopenmodule" != "X$lib"; then
+			$ECHO "*** Warning: lib $linklib is a module, not a shared library"
+			if test -z "$old_library"; then
+			  echo
+			  echo "*** And there doesn't seem to be a static archive available"
+			  echo "*** The link will probably fail, sorry"
+			else
+			  add=$dir/$old_library
+			fi
+		      elif test -n "$old_library"; then
+			add=$dir/$old_library
+		      fi
+		    fi
+		esac
+	      elif test no = "$hardcode_minus_L"; then
+		case $host in
+		*-*-sunos*) add_shlibpath=$dir ;;
+		esac
+		add_dir=-L$dir
+		add=-l$name
+	      elif test no = "$hardcode_shlibpath_var"; then
+		add_shlibpath=$dir
+		add=-l$name
+	      else
+		lib_linked=no
+	      fi
+	      ;;
+	    relink)
+	      if test yes = "$hardcode_direct" &&
+	         test no = "$hardcode_direct_absolute"; then
+		add=$dir/$linklib
+	      elif test yes = "$hardcode_minus_L"; then
+		add_dir=-L$absdir
+		# Try looking first in the location we're being installed to.
+		if test -n "$inst_prefix_dir"; then
+		  case $libdir in
+		    [\\/]*)
+		      func_append add_dir " -L$inst_prefix_dir$libdir"
+		      ;;
+		  esac
+		fi
+		add=-l$name
+	      elif test yes = "$hardcode_shlibpath_var"; then
+		add_shlibpath=$dir
+		add=-l$name
+	      else
+		lib_linked=no
+	      fi
+	      ;;
+	    *) lib_linked=no ;;
+	    esac
+
+	    if test yes != "$lib_linked"; then
+	      func_fatal_configuration "unsupported hardcode properties"
+	    fi
+
+	    if test -n "$add_shlibpath"; then
+	      case :$compile_shlibpath: in
+	      *":$add_shlibpath:"*) ;;
+	      *) func_append compile_shlibpath "$add_shlibpath:" ;;
+	      esac
+	    fi
+	    if test prog = "$linkmode"; then
+	      test -n "$add_dir" && compile_deplibs="$add_dir $compile_deplibs"
+	      test -n "$add" && compile_deplibs="$add $compile_deplibs"
+	    else
+	      test -n "$add_dir" && deplibs="$add_dir $deplibs"
+	      test -n "$add" && deplibs="$add $deplibs"
+	      if test yes != "$hardcode_direct" &&
+		 test yes != "$hardcode_minus_L" &&
+		 test yes = "$hardcode_shlibpath_var"; then
+		case :$finalize_shlibpath: in
+		*":$libdir:"*) ;;
+		*) func_append finalize_shlibpath "$libdir:" ;;
+		esac
+	      fi
+	    fi
+	  fi
+
+	  if test prog = "$linkmode" || test relink = "$opt_mode"; then
+	    add_shlibpath=
+	    add_dir=
+	    add=
+	    # Finalize command for both is simple: just hardcode it.
+	    if test yes = "$hardcode_direct" &&
+	       test no = "$hardcode_direct_absolute"; then
+	      add=$libdir/$linklib
+	    elif test yes = "$hardcode_minus_L"; then
+	      add_dir=-L$libdir
+	      add=-l$name
+	    elif test yes = "$hardcode_shlibpath_var"; then
+	      case :$finalize_shlibpath: in
+	      *":$libdir:"*) ;;
+	      *) func_append finalize_shlibpath "$libdir:" ;;
+	      esac
+	      add=-l$name
+	    elif test yes = "$hardcode_automatic"; then
+	      if test -n "$inst_prefix_dir" &&
+		 test -f "$inst_prefix_dir$libdir/$linklib"; then
+		add=$inst_prefix_dir$libdir/$linklib
+	      else
+		add=$libdir/$linklib
+	      fi
+	    else
+	      # We cannot seem to hardcode it, guess we'll fake it.
+	      add_dir=-L$libdir
+	      # Try looking first in the location we're being installed to.
+	      if test -n "$inst_prefix_dir"; then
+		case $libdir in
+		  [\\/]*)
+		    func_append add_dir " -L$inst_prefix_dir$libdir"
+		    ;;
+		esac
+	      fi
+	      add=-l$name
+	    fi
+
+	    if test prog = "$linkmode"; then
+	      test -n "$add_dir" && finalize_deplibs="$add_dir $finalize_deplibs"
+	      test -n "$add" && finalize_deplibs="$add $finalize_deplibs"
+	    else
+	      test -n "$add_dir" && deplibs="$add_dir $deplibs"
+	      test -n "$add" && deplibs="$add $deplibs"
+	    fi
+	  fi
+	elif test prog = "$linkmode"; then
+	  # Here we assume that one of hardcode_direct or hardcode_minus_L
+	  # is not unsupported.  This is valid on all known static and
+	  # shared platforms.
+	  if test unsupported != "$hardcode_direct"; then
+	    test -n "$old_library" && linklib=$old_library
+	    compile_deplibs="$dir/$linklib $compile_deplibs"
+	    finalize_deplibs="$dir/$linklib $finalize_deplibs"
+	  else
+	    compile_deplibs="-l$name -L$dir $compile_deplibs"
+	    finalize_deplibs="-l$name -L$dir $finalize_deplibs"
+	  fi
+	elif test yes = "$build_libtool_libs"; then
+	  # Not a shared library
+	  if test pass_all != "$deplibs_check_method"; then
+	    # We're trying link a shared library against a static one
+	    # but the system doesn't support it.
+
+	    # Just print a warning and add the library to dependency_libs so
+	    # that the program can be linked against the static library.
+	    echo
+	    $ECHO "*** Warning: This system cannot link to static lib archive $lib."
+	    echo "*** I have the capability to make that library automatically link in when"
+	    echo "*** you link to this library.  But I can only do this if you have a"
+	    echo "*** shared version of the library, which you do not appear to have."
+	    if test yes = "$module"; then
+	      echo "*** But as you try to build a module library, libtool will still create "
+	      echo "*** a static module, that should work as long as the dlopening application"
+	      echo "*** is linked with the -dlopen flag to resolve symbols at runtime."
+	      if test -z "$global_symbol_pipe"; then
+		echo
+		echo "*** However, this would only work if libtool was able to extract symbol"
+		echo "*** lists from a program, using 'nm' or equivalent, but libtool could"
+		echo "*** not find such a program.  So, this module is probably useless."
+		echo "*** 'nm' from GNU binutils and a full rebuild may help."
+	      fi
+	      if test no = "$build_old_libs"; then
+		build_libtool_libs=module
+		build_old_libs=yes
+	      else
+		build_libtool_libs=no
+	      fi
+	    fi
+	  else
+	    deplibs="$dir/$old_library $deplibs"
+	    link_static=yes
+	  fi
+	fi # link shared/static library?
+
+	if test lib = "$linkmode"; then
+	  if test -n "$dependency_libs" &&
+	     { test yes != "$hardcode_into_libs" ||
+	       test yes = "$build_old_libs" ||
+	       test yes = "$link_static"; }; then
+	    # Extract -R from dependency_libs
+	    temp_deplibs=
+	    for libdir in $dependency_libs; do
+	      case $libdir in
+	      -R*) func_stripname '-R' '' "$libdir"
+	           temp_xrpath=$func_stripname_result
+		   case " $xrpath " in
+		   *" $temp_xrpath "*) ;;
+		   *) func_append xrpath " $temp_xrpath";;
+		   esac;;
+	      *) func_append temp_deplibs " $libdir";;
+	      esac
+	    done
+	    dependency_libs=$temp_deplibs
+	  fi
+
+	  func_append newlib_search_path " $absdir"
+	  # Link against this library
+	  test no = "$link_static" && newdependency_libs="$abs_ladir/$laname $newdependency_libs"
+	  # ... and its dependency_libs
+	  tmp_libs=
+	  for deplib in $dependency_libs; do
+	    newdependency_libs="$deplib $newdependency_libs"
+	    case $deplib in
+              -L*) func_stripname '-L' '' "$deplib"
+                   func_resolve_sysroot "$func_stripname_result";;
+              *) func_resolve_sysroot "$deplib" ;;
+            esac
+	    if $opt_preserve_dup_deps; then
+	      case "$tmp_libs " in
+	      *" $func_resolve_sysroot_result "*)
+                func_append specialdeplibs " $func_resolve_sysroot_result" ;;
+	      esac
+	    fi
+	    func_append tmp_libs " $func_resolve_sysroot_result"
+	  done
+
+	  if test no != "$link_all_deplibs"; then
+	    # Add the search paths of all dependency libraries
+	    for deplib in $dependency_libs; do
+	      path=
+	      case $deplib in
+	      -L*) path=$deplib ;;
+	      *.la)
+	        func_resolve_sysroot "$deplib"
+	        deplib=$func_resolve_sysroot_result
+	        func_dirname "$deplib" "" "."
+		dir=$func_dirname_result
+		# We need an absolute path.
+		case $dir in
+		[\\/]* | [A-Za-z]:[\\/]*) absdir=$dir ;;
+		*)
+		  absdir=`cd "$dir" && pwd`
+		  if test -z "$absdir"; then
+		    func_warning "cannot determine absolute directory name of '$dir'"
+		    absdir=$dir
+		  fi
+		  ;;
+		esac
+		if $GREP "^installed=no" $deplib > /dev/null; then
+		case $host in
+		*-*-darwin*)
+		  depdepl=
+		  eval deplibrary_names=`$SED -n -e 's/^library_names=\(.*\)$/\1/p' $deplib`
+		  if test -n "$deplibrary_names"; then
+		    for tmp in $deplibrary_names; do
+		      depdepl=$tmp
+		    done
+		    if test -f "$absdir/$objdir/$depdepl"; then
+		      depdepl=$absdir/$objdir/$depdepl
+		      darwin_install_name=`$OTOOL -L $depdepl | awk '{if (NR == 2) {print $1;exit}}'`
+                      if test -z "$darwin_install_name"; then
+                          darwin_install_name=`$OTOOL64 -L $depdepl  | awk '{if (NR == 2) {print $1;exit}}'`
+                      fi
+		      func_append compiler_flags " $wl-dylib_file $wl$darwin_install_name:$depdepl"
+		      func_append linker_flags " -dylib_file $darwin_install_name:$depdepl"
+		      path=
+		    fi
+		  fi
+		  ;;
+		*)
+		  path=-L$absdir/$objdir
+		  ;;
+		esac
+		else
+		  eval libdir=`$SED -n -e 's/^libdir=\(.*\)$/\1/p' $deplib`
+		  test -z "$libdir" && \
+		    func_fatal_error "'$deplib' is not a valid libtool archive"
+		  test "$absdir" != "$libdir" && \
+		    func_warning "'$deplib' seems to be moved"
+
+		  path=-L$absdir
+		fi
+		;;
+	      esac
+	      case " $deplibs " in
+	      *" $path "*) ;;
+	      *) deplibs="$path $deplibs" ;;
+	      esac
+	    done
+	  fi # link_all_deplibs != no
+	fi # linkmode = lib
+      done # for deplib in $libs
+      if test link = "$pass"; then
+	if test prog = "$linkmode"; then
+	  compile_deplibs="$new_inherited_linker_flags $compile_deplibs"
+	  finalize_deplibs="$new_inherited_linker_flags $finalize_deplibs"
+	else
+	  compiler_flags="$compiler_flags "`$ECHO " $new_inherited_linker_flags" | $SED 's% \([^ $]*\).ltframework% -framework \1%g'`
+	fi
+      fi
+      dependency_libs=$newdependency_libs
+      if test dlpreopen = "$pass"; then
+	# Link the dlpreopened libraries before other libraries
+	for deplib in $save_deplibs; do
+	  deplibs="$deplib $deplibs"
+	done
+      fi
+      if test dlopen != "$pass"; then
+	test conv = "$pass" || {
+	  # Make sure lib_search_path contains only unique directories.
+	  lib_search_path=
+	  for dir in $newlib_search_path; do
+	    case "$lib_search_path " in
+	    *" $dir "*) ;;
+	    *) func_append lib_search_path " $dir" ;;
+	    esac
+	  done
+	  newlib_search_path=
+	}
+
+	if test prog,link = "$linkmode,$pass"; then
+	  vars="compile_deplibs finalize_deplibs"
+	else
+	  vars=deplibs
+	fi
+	for var in $vars dependency_libs; do
+	  # Add libraries to $var in reverse order
+	  eval tmp_libs=\"\$$var\"
+	  new_libs=
+	  for deplib in $tmp_libs; do
+	    # FIXME: Pedantically, this is the right thing to do, so
+	    #        that some nasty dependency loop isn't accidentally
+	    #        broken:
+	    #new_libs="$deplib $new_libs"
+	    # Pragmatically, this seems to cause very few problems in
+	    # practice:
+	    case $deplib in
+	    -L*) new_libs="$deplib $new_libs" ;;
+	    -R*) ;;
+	    *)
+	      # And here is the reason: when a library appears more
+	      # than once as an explicit dependence of a library, or
+	      # is implicitly linked in more than once by the
+	      # compiler, it is considered special, and multiple
+	      # occurrences thereof are not removed.  Compare this
+	      # with having the same library being listed as a
+	      # dependency of multiple other libraries: in this case,
+	      # we know (pedantically, we assume) the library does not
+	      # need to be listed more than once, so we keep only the
+	      # last copy.  This is not always right, but it is rare
+	      # enough that we require users that really mean to play
+	      # such unportable linking tricks to link the library
+	      # using -Wl,-lname, so that libtool does not consider it
+	      # for duplicate removal.
+	      case " $specialdeplibs " in
+	      *" $deplib "*) new_libs="$deplib $new_libs" ;;
+	      *)
+		case " $new_libs " in
+		*" $deplib "*) ;;
+		*) new_libs="$deplib $new_libs" ;;
+		esac
+		;;
+	      esac
+	      ;;
+	    esac
+	  done
+	  tmp_libs=
+	  for deplib in $new_libs; do
+	    case $deplib in
+	    -L*)
+	      case " $tmp_libs " in
+	      *" $deplib "*) ;;
+	      *) func_append tmp_libs " $deplib" ;;
+	      esac
+	      ;;
+	    *) func_append tmp_libs " $deplib" ;;
+	    esac
+	  done
+	  eval $var=\"$tmp_libs\"
+	done # for var
+      fi
+
+      # Add Sun CC postdeps if required:
+      test CXX = "$tagname" && {
+        case $host_os in
+        linux*)
+          case `$CC -V 2>&1 | sed 5q` in
+          *Sun\ C*) # Sun C++ 5.9
+            func_suncc_cstd_abi
+
+            if test no != "$suncc_use_cstd_abi"; then
+              func_append postdeps ' -library=Cstd -library=Crun'
+            fi
+            ;;
+          esac
+          ;;
+
+        solaris*)
+          func_cc_basename "$CC"
+          case $func_cc_basename_result in
+          CC* | sunCC*)
+            func_suncc_cstd_abi
+
+            if test no != "$suncc_use_cstd_abi"; then
+              func_append postdeps ' -library=Cstd -library=Crun'
+            fi
+            ;;
+          esac
+          ;;
+        esac
+      }
+
+      # Last step: remove runtime libs from dependency_libs
+      # (they stay in deplibs)
+      tmp_libs=
+      for i in $dependency_libs; do
+	case " $predeps $postdeps $compiler_lib_search_path " in
+	*" $i "*)
+	  i=
+	  ;;
+	esac
+	if test -n "$i"; then
+	  func_append tmp_libs " $i"
+	fi
+      done
+      dependency_libs=$tmp_libs
+    done # for pass
+    if test prog = "$linkmode"; then
+      dlfiles=$newdlfiles
+    fi
+    if test prog = "$linkmode" || test lib = "$linkmode"; then
+      dlprefiles=$newdlprefiles
+    fi
+
+    case $linkmode in
+    oldlib)
+      if test -n "$dlfiles$dlprefiles" || test no != "$dlself"; then
+	func_warning "'-dlopen' is ignored for archives"
+      fi
+
+      case " $deplibs" in
+      *\ -l* | *\ -L*)
+	func_warning "'-l' and '-L' are ignored for archives" ;;
+      esac
+
+      test -n "$rpath" && \
+	func_warning "'-rpath' is ignored for archives"
+
+      test -n "$xrpath" && \
+	func_warning "'-R' is ignored for archives"
+
+      test -n "$vinfo" && \
+	func_warning "'-version-info/-version-number' is ignored for archives"
+
+      test -n "$release" && \
+	func_warning "'-release' is ignored for archives"
+
+      test -n "$export_symbols$export_symbols_regex" && \
+	func_warning "'-export-symbols' is ignored for archives"
+
+      # Now set the variables for building old libraries.
+      build_libtool_libs=no
+      oldlibs=$output
+      func_append objs "$old_deplibs"
+      ;;
+
+    lib)
+      # Make sure we only generate libraries of the form 'libNAME.la'.
+      case $outputname in
+      lib*)
+	func_stripname 'lib' '.la' "$outputname"
+	name=$func_stripname_result
+	eval shared_ext=\"$shrext_cmds\"
+	eval libname=\"$libname_spec\"
+	;;
+      *)
+	test no = "$module" \
+	  && func_fatal_help "libtool library '$output' must begin with 'lib'"
+
+	if test no != "$need_lib_prefix"; then
+	  # Add the "lib" prefix for modules if required
+	  func_stripname '' '.la' "$outputname"
+	  name=$func_stripname_result
+	  eval shared_ext=\"$shrext_cmds\"
+	  eval libname=\"$libname_spec\"
+	else
+	  func_stripname '' '.la' "$outputname"
+	  libname=$func_stripname_result
+	fi
+	;;
+      esac
+
+      if test -n "$objs"; then
+	if test pass_all != "$deplibs_check_method"; then
+	  func_fatal_error "cannot build libtool library '$output' from non-libtool objects on this host:$objs"
+	else
+	  echo
+	  $ECHO "*** Warning: Linking the shared library $output against the non-libtool"
+	  $ECHO "*** objects $objs is not portable!"
+	  func_append libobjs " $objs"
+	fi
+      fi
+
+      test no = "$dlself" \
+	|| func_warning "'-dlopen self' is ignored for libtool libraries"
+
+      set dummy $rpath
+      shift
+      test 1 -lt "$#" \
+	&& func_warning "ignoring multiple '-rpath's for a libtool library"
+
+      install_libdir=$1
+
+      oldlibs=
+      if test -z "$rpath"; then
+	if test yes = "$build_libtool_libs"; then
+	  # Building a libtool convenience library.
+	  # Some compilers have problems with a '.al' extension so
+	  # convenience libraries should have the same extension an
+	  # archive normally would.
+	  oldlibs="$output_objdir/$libname.$libext $oldlibs"
+	  build_libtool_libs=convenience
+	  build_old_libs=yes
+	fi
+
+	test -n "$vinfo" && \
+	  func_warning "'-version-info/-version-number' is ignored for convenience libraries"
+
+	test -n "$release" && \
+	  func_warning "'-release' is ignored for convenience libraries"
+      else
+
+	# Parse the version information argument.
+	save_ifs=$IFS; IFS=:
+	set dummy $vinfo 0 0 0
+	shift
+	IFS=$save_ifs
+
+	test -n "$7" && \
+	  func_fatal_help "too many parameters to '-version-info'"
+
+	# convert absolute version numbers to libtool ages
+	# this retains compatibility with .la files and attempts
+	# to make the code below a bit more comprehensible
+
+	case $vinfo_number in
+	yes)
+	  number_major=$1
+	  number_minor=$2
+	  number_revision=$3
+	  #
+	  # There are really only two kinds -- those that
+	  # use the current revision as the major version
+	  # and those that subtract age and use age as
+	  # a minor version.  But, then there is irix
+	  # that has an extra 1 added just for fun
+	  #
+	  case $version_type in
+	  # correct linux to gnu/linux during the next big refactor
+	  darwin|freebsd-elf|linux|osf|windows|none)
+	    func_arith $number_major + $number_minor
+	    current=$func_arith_result
+	    age=$number_minor
+	    revision=$number_revision
+	    ;;
+	  freebsd-aout|qnx|sunos)
+	    current=$number_major
+	    revision=$number_minor
+	    age=0
+	    ;;
+	  irix|nonstopux)
+	    func_arith $number_major + $number_minor
+	    current=$func_arith_result
+	    age=$number_minor
+	    revision=$number_minor
+	    lt_irix_increment=no
+	    ;;
+	  esac
+	  ;;
+	no)
+	  current=$1
+	  revision=$2
+	  age=$3
+	  ;;
+	esac
+
+	# Check that each of the things are valid numbers.
+	case $current in
+	0|[1-9]|[1-9][0-9]|[1-9][0-9][0-9]|[1-9][0-9][0-9][0-9]|[1-9][0-9][0-9][0-9][0-9]) ;;
+	*)
+	  func_error "CURRENT '$current' must be a nonnegative integer"
+	  func_fatal_error "'$vinfo' is not valid version information"
+	  ;;
+	esac
+
+	case $revision in
+	0|[1-9]|[1-9][0-9]|[1-9][0-9][0-9]|[1-9][0-9][0-9][0-9]|[1-9][0-9][0-9][0-9][0-9]) ;;
+	*)
+	  func_error "REVISION '$revision' must be a nonnegative integer"
+	  func_fatal_error "'$vinfo' is not valid version information"
+	  ;;
+	esac
+
+	case $age in
+	0|[1-9]|[1-9][0-9]|[1-9][0-9][0-9]|[1-9][0-9][0-9][0-9]|[1-9][0-9][0-9][0-9][0-9]) ;;
+	*)
+	  func_error "AGE '$age' must be a nonnegative integer"
+	  func_fatal_error "'$vinfo' is not valid version information"
+	  ;;
+	esac
+
+	if test "$age" -gt "$current"; then
+	  func_error "AGE '$age' is greater than the current interface number '$current'"
+	  func_fatal_error "'$vinfo' is not valid version information"
+	fi
+
+	# Calculate the version variables.
+	major=
+	versuffix=
+	verstring=
+	case $version_type in
+	none) ;;
+
+	darwin)
+	  # Like Linux, but with the current version available in
+	  # verstring for coding it into the library header
+	  func_arith $current - $age
+	  major=.$func_arith_result
+	  versuffix=$major.$age.$revision
+	  # Darwin ld doesn't like 0 for these options...
+	  func_arith $current + 1
+	  minor_current=$func_arith_result
+	  xlcverstring="$wl-compatibility_version $wl$minor_current $wl-current_version $wl$minor_current.$revision"
+	  verstring="-compatibility_version $minor_current -current_version $minor_current.$revision"
+          # On Darwin other compilers
+          case $CC in
+              nagfor*)
+                  verstring="$wl-compatibility_version $wl$minor_current $wl-current_version $wl$minor_current.$revision"
+                  ;;
+              *)
+                  verstring="-compatibility_version $minor_current -current_version $minor_current.$revision"
+                  ;;
+          esac
+	  ;;
+
+	freebsd-aout)
+	  major=.$current
+	  versuffix=.$current.$revision
+	  ;;
+
+	freebsd-elf)
+	  func_arith $current - $age
+	  major=.$func_arith_result
+	  versuffix=$major.$age.$revision
+	  ;;
+
+	irix | nonstopux)
+	  if test no = "$lt_irix_increment"; then
+	    func_arith $current - $age
+	  else
+	    func_arith $current - $age + 1
+	  fi
+	  major=$func_arith_result
+
+	  case $version_type in
+	    nonstopux) verstring_prefix=nonstopux ;;
+	    *)         verstring_prefix=sgi ;;
+	  esac
+	  verstring=$verstring_prefix$major.$revision
+
+	  # Add in all the interfaces that we are compatible with.
+	  loop=$revision
+	  while test 0 -ne "$loop"; do
+	    func_arith $revision - $loop
+	    iface=$func_arith_result
+	    func_arith $loop - 1
+	    loop=$func_arith_result
+	    verstring=$verstring_prefix$major.$iface:$verstring
+	  done
+
+	  # Before this point, $major must not contain '.'.
+	  major=.$major
+	  versuffix=$major.$revision
+	  ;;
+
+	linux) # correct to gnu/linux during the next big refactor
+	  func_arith $current - $age
+	  major=.$func_arith_result
+	  versuffix=$major.$age.$revision
+	  ;;
+
+	osf)
+	  func_arith $current - $age
+	  major=.$func_arith_result
+	  versuffix=.$current.$age.$revision
+	  verstring=$current.$age.$revision
+
+	  # Add in all the interfaces that we are compatible with.
+	  loop=$age
+	  while test 0 -ne "$loop"; do
+	    func_arith $current - $loop
+	    iface=$func_arith_result
+	    func_arith $loop - 1
+	    loop=$func_arith_result
+	    verstring=$verstring:$iface.0
+	  done
+
+	  # Make executables depend on our current version.
+	  func_append verstring ":$current.0"
+	  ;;
+
+	qnx)
+	  major=.$current
+	  versuffix=.$current
+	  ;;
+
+	sco)
+	  major=.$current
+	  versuffix=.$current
+	  ;;
+
+	sunos)
+	  major=.$current
+	  versuffix=.$current.$revision
+	  ;;
+
+	windows)
+	  # Use '-' rather than '.', since we only want one
+	  # extension on DOS 8.3 file systems.
+	  func_arith $current - $age
+	  major=$func_arith_result
+	  versuffix=-$major
+	  ;;
+
+	*)
+	  func_fatal_configuration "unknown library version type '$version_type'"
+	  ;;
+	esac
+
+	# Clear the version info if we defaulted, and they specified a release.
+	if test -z "$vinfo" && test -n "$release"; then
+	  major=
+	  case $version_type in
+	  darwin)
+	    # we can't check for "0.0" in archive_cmds due to quoting
+	    # problems, so we reset it completely
+	    verstring=
+	    ;;
+	  *)
+	    verstring=0.0
+	    ;;
+	  esac
+	  if test no = "$need_version"; then
+	    versuffix=
+	  else
+	    versuffix=.0.0
+	  fi
+	fi
+
+	# Remove version info from name if versioning should be avoided
+	if test yes,no = "$avoid_version,$need_version"; then
+	  major=
+	  versuffix=
+	  verstring=
+	fi
+
+	# Check to see if the archive will have undefined symbols.
+	if test yes = "$allow_undefined"; then
+	  if test unsupported = "$allow_undefined_flag"; then
+	    if test yes = "$build_old_libs"; then
+	      func_warning "undefined symbols not allowed in $host shared libraries; building static only"
+	      build_libtool_libs=no
+	    else
+	      func_fatal_error "can't build $host shared library unless -no-undefined is specified"
+	    fi
+	  fi
+	else
+	  # Don't allow undefined symbols.
+	  allow_undefined_flag=$no_undefined_flag
+	fi
+
+      fi
+
+      func_generate_dlsyms "$libname" "$libname" :
+      func_append libobjs " $symfileobj"
+      test " " = "$libobjs" && libobjs=
+
+      if test relink != "$opt_mode"; then
+	# Remove our outputs, but don't remove object files since they
+	# may have been created when compiling PIC objects.
+	removelist=
+	tempremovelist=`$ECHO "$output_objdir/*"`
+	for p in $tempremovelist; do
+	  case $p in
+	    *.$objext | *.gcno)
+	       ;;
+	    $output_objdir/$outputname | $output_objdir/$libname.* | $output_objdir/$libname$release.*)
+	       if test -n "$precious_files_regex"; then
+		 if $ECHO "$p" | $EGREP -e "$precious_files_regex" >/dev/null 2>&1
+		 then
+		   continue
+		 fi
+	       fi
+	       func_append removelist " $p"
+	       ;;
+	    *) ;;
+	  esac
+	done
+	test -n "$removelist" && \
+	  func_show_eval "${RM}r \$removelist"
+      fi
+
+      # Now set the variables for building old libraries.
+      if test yes = "$build_old_libs" && test convenience != "$build_libtool_libs"; then
+	func_append oldlibs " $output_objdir/$libname.$libext"
+
+	# Transform .lo files to .o files.
+	oldobjs="$objs "`$ECHO "$libobjs" | $SP2NL | $SED "/\.$libext$/d; $lo2o" | $NL2SP`
+      fi
+
+      # Eliminate all temporary directories.
+      #for path in $notinst_path; do
+      #	lib_search_path=`$ECHO "$lib_search_path " | $SED "s% $path % %g"`
+      #	deplibs=`$ECHO "$deplibs " | $SED "s% -L$path % %g"`
+      #	dependency_libs=`$ECHO "$dependency_libs " | $SED "s% -L$path % %g"`
+      #done
+
+      if test -n "$xrpath"; then
+	# If the user specified any rpath flags, then add them.
+	temp_xrpath=
+	for libdir in $xrpath; do
+	  func_replace_sysroot "$libdir"
+	  func_append temp_xrpath " -R$func_replace_sysroot_result"
+	  case "$finalize_rpath " in
+	  *" $libdir "*) ;;
+	  *) func_append finalize_rpath " $libdir" ;;
+	  esac
+	done
+	if test yes != "$hardcode_into_libs" || test yes = "$build_old_libs"; then
+	  dependency_libs="$temp_xrpath $dependency_libs"
+	fi
+      fi
+
+      # Make sure dlfiles contains only unique files that won't be dlpreopened
+      old_dlfiles=$dlfiles
+      dlfiles=
+      for lib in $old_dlfiles; do
+	case " $dlprefiles $dlfiles " in
+	*" $lib "*) ;;
+	*) func_append dlfiles " $lib" ;;
+	esac
+      done
+
+      # Make sure dlprefiles contains only unique files
+      old_dlprefiles=$dlprefiles
+      dlprefiles=
+      for lib in $old_dlprefiles; do
+	case "$dlprefiles " in
+	*" $lib "*) ;;
+	*) func_append dlprefiles " $lib" ;;
+	esac
+      done
+
+      if test yes = "$build_libtool_libs"; then
+	if test -n "$rpath"; then
+	  case $host in
+	  *-*-cygwin* | *-*-mingw* | *-*-pw32* | *-*-os2* | *-*-beos* | *-cegcc* | *-*-haiku*)
+	    # these systems don't actually have a c library (as such)!
+	    ;;
+	  *-*-rhapsody* | *-*-darwin1.[012])
+	    # Rhapsody C library is in the System framework
+	    func_append deplibs " System.ltframework"
+	    ;;
+	  *-*-netbsd*)
+	    # Don't link with libc until the a.out ld.so is fixed.
+	    ;;
+	  *-*-openbsd* | *-*-freebsd* | *-*-dragonfly*)
+	    # Do not include libc due to us having libc/libc_r.
+	    ;;
+	  *-*-sco3.2v5* | *-*-sco5v6*)
+	    # Causes problems with __ctype
+	    ;;
+	  *-*-sysv4.2uw2* | *-*-sysv5* | *-*-unixware* | *-*-OpenUNIX*)
+	    # Compiler inserts libc in the correct place for threads to work
+	    ;;
+	  *)
+	    # Add libc to deplibs on all other systems if necessary.
+	    if test yes = "$build_libtool_need_lc"; then
+	      func_append deplibs " -lc"
+	    fi
+	    ;;
+	  esac
+	fi
+
+	# Transform deplibs into only deplibs that can be linked in shared.
+	name_save=$name
+	libname_save=$libname
+	release_save=$release
+	versuffix_save=$versuffix
+	major_save=$major
+	# I'm not sure if I'm treating the release correctly.  I think
+	# release should show up in the -l (ie -lgmp5) so we don't want to
+	# add it in twice.  Is that correct?
+	release=
+	versuffix=
+	major=
+	newdeplibs=
+	droppeddeps=no
+	case $deplibs_check_method in
+	pass_all)
+	  # Don't check for shared/static.  Everything works.
+	  # This might be a little naive.  We might want to check
+	  # whether the library exists or not.  But this is on
+	  # osf3 & osf4 and I'm not really sure... Just
+	  # implementing what was already the behavior.
+	  newdeplibs=$deplibs
+	  ;;
+	test_compile)
+	  # This code stresses the "libraries are programs" paradigm to its
+	  # limits. Maybe even breaks it.  We compile a program, linking it
+	  # against the deplibs as a proxy for the library.  Then we can check
+	  # whether they linked in statically or dynamically with ldd.
+	  $opt_dry_run || $RM conftest.c
+	  cat > conftest.c <<EOF
+	  int main() { return 0; }
+EOF
+	  $opt_dry_run || $RM conftest
+	  if $LTCC $LTCFLAGS -o conftest conftest.c $deplibs; then
+	    ldd_output=`ldd conftest`
+	    for i in $deplibs; do
+	      case $i in
+	      -l*)
+		func_stripname -l '' "$i"
+		name=$func_stripname_result
+		if test yes = "$allow_libtool_libs_with_static_runtimes"; then
+		  case " $predeps $postdeps " in
+		  *" $i "*)
+		    func_append newdeplibs " $i"
+		    i=
+		    ;;
+		  esac
+		fi
+		if test -n "$i"; then
+		  libname=`eval "\\$ECHO \"$libname_spec\""`
+		  deplib_matches=`eval "\\$ECHO \"$library_names_spec\""`
+		  set dummy $deplib_matches; shift
+		  deplib_match=$1
+		  if test `expr "$ldd_output" : ".*$deplib_match"` -ne 0; then
+		    func_append newdeplibs " $i"
+		  else
+		    droppeddeps=yes
+		    echo
+		    $ECHO "*** Warning: dynamic linker does not accept needed library $i."
+		    echo "*** I have the capability to make that library automatically link in when"
+		    echo "*** you link to this library.  But I can only do this if you have a"
+		    echo "*** shared version of the library, which I believe you do not have"
+		    echo "*** because a test_compile did reveal that the linker did not use it for"
+		    echo "*** its dynamic dependency list that programs get resolved with at runtime."
+		  fi
+		fi
+		;;
+	      *)
+		func_append newdeplibs " $i"
+		;;
+	      esac
+	    done
+	  else
+	    # Error occurred in the first compile.  Let's try to salvage
+	    # the situation: Compile a separate program for each library.
+	    for i in $deplibs; do
+	      case $i in
+	      -l*)
+		func_stripname -l '' "$i"
+		name=$func_stripname_result
+		$opt_dry_run || $RM conftest
+		if $LTCC $LTCFLAGS -o conftest conftest.c $i; then
+		  ldd_output=`ldd conftest`
+		  if test yes = "$allow_libtool_libs_with_static_runtimes"; then
+		    case " $predeps $postdeps " in
+		    *" $i "*)
+		      func_append newdeplibs " $i"
+		      i=
+		      ;;
+		    esac
+		  fi
+		  if test -n "$i"; then
+		    libname=`eval "\\$ECHO \"$libname_spec\""`
+		    deplib_matches=`eval "\\$ECHO \"$library_names_spec\""`
+		    set dummy $deplib_matches; shift
+		    deplib_match=$1
+		    if test `expr "$ldd_output" : ".*$deplib_match"` -ne 0; then
+		      func_append newdeplibs " $i"
+		    else
+		      droppeddeps=yes
+		      echo
+		      $ECHO "*** Warning: dynamic linker does not accept needed library $i."
+		      echo "*** I have the capability to make that library automatically link in when"
+		      echo "*** you link to this library.  But I can only do this if you have a"
+		      echo "*** shared version of the library, which you do not appear to have"
+		      echo "*** because a test_compile did reveal that the linker did not use this one"
+		      echo "*** as a dynamic dependency that programs can get resolved with at runtime."
+		    fi
+		  fi
+		else
+		  droppeddeps=yes
+		  echo
+		  $ECHO "*** Warning!  Library $i is needed by this library but I was not able to"
+		  echo "*** make it link in!  You will probably need to install it or some"
+		  echo "*** library that it depends on before this library will be fully"
+		  echo "*** functional.  Installing it before continuing would be even better."
+		fi
+		;;
+	      *)
+		func_append newdeplibs " $i"
+		;;
+	      esac
+	    done
+	  fi
+	  ;;
+	file_magic*)
+	  set dummy $deplibs_check_method; shift
+	  file_magic_regex=`expr "$deplibs_check_method" : "$1 \(.*\)"`
+	  for a_deplib in $deplibs; do
+	    case $a_deplib in
+	    -l*)
+	      func_stripname -l '' "$a_deplib"
+	      name=$func_stripname_result
+	      if test yes = "$allow_libtool_libs_with_static_runtimes"; then
+		case " $predeps $postdeps " in
+		*" $a_deplib "*)
+		  func_append newdeplibs " $a_deplib"
+		  a_deplib=
+		  ;;
+		esac
+	      fi
+	      if test -n "$a_deplib"; then
+		libname=`eval "\\$ECHO \"$libname_spec\""`
+		if test -n "$file_magic_glob"; then
+		  libnameglob=`func_echo_all "$libname" | $SED -e $file_magic_glob`
+		else
+		  libnameglob=$libname
+		fi
+		test yes = "$want_nocaseglob" && nocaseglob=`shopt -p nocaseglob`
+		for i in $lib_search_path $sys_lib_search_path $shlib_search_path; do
+		  if test yes = "$want_nocaseglob"; then
+		    shopt -s nocaseglob
+		    potential_libs=`ls $i/$libnameglob[.-]* 2>/dev/null`
+		    $nocaseglob
+		  else
+		    potential_libs=`ls $i/$libnameglob[.-]* 2>/dev/null`
+		  fi
+		  for potent_lib in $potential_libs; do
+		      # Follow soft links.
+		      if ls -lLd "$potent_lib" 2>/dev/null |
+			 $GREP " -> " >/dev/null; then
+			continue
+		      fi
+		      # The statement above tries to avoid entering an
+		      # endless loop below, in case of cyclic links.
+		      # We might still enter an endless loop, since a link
+		      # loop can be closed while we follow links,
+		      # but so what?
+		      potlib=$potent_lib
+		      while test -h "$potlib" 2>/dev/null; do
+			potliblink=`ls -ld $potlib | $SED 's/.* -> //'`
+			case $potliblink in
+			[\\/]* | [A-Za-z]:[\\/]*) potlib=$potliblink;;
+			*) potlib=`$ECHO "$potlib" | $SED 's|[^/]*$||'`"$potliblink";;
+			esac
+		      done
+		      if eval $file_magic_cmd \"\$potlib\" 2>/dev/null |
+			 $SED -e 10q |
+			 $EGREP "$file_magic_regex" > /dev/null; then
+			func_append newdeplibs " $a_deplib"
+			a_deplib=
+			break 2
+		      fi
+		  done
+		done
+	      fi
+	      if test -n "$a_deplib"; then
+		droppeddeps=yes
+		echo
+		$ECHO "*** Warning: linker path does not have real file for library $a_deplib."
+		echo "*** I have the capability to make that library automatically link in when"
+		echo "*** you link to this library.  But I can only do this if you have a"
+		echo "*** shared version of the library, which you do not appear to have"
+		echo "*** because I did check the linker path looking for a file starting"
+		if test -z "$potlib"; then
+		  $ECHO "*** with $libname but no candidates were found. (...for file magic test)"
+		else
+		  $ECHO "*** with $libname and none of the candidates passed a file format test"
+		  $ECHO "*** using a file magic. Last file checked: $potlib"
+		fi
+	      fi
+	      ;;
+	    *)
+	      # Add a -L argument.
+	      func_append newdeplibs " $a_deplib"
+	      ;;
+	    esac
+	  done # Gone through all deplibs.
+	  ;;
+	match_pattern*)
+	  set dummy $deplibs_check_method; shift
+	  match_pattern_regex=`expr "$deplibs_check_method" : "$1 \(.*\)"`
+	  for a_deplib in $deplibs; do
+	    case $a_deplib in
+	    -l*)
+	      func_stripname -l '' "$a_deplib"
+	      name=$func_stripname_result
+	      if test yes = "$allow_libtool_libs_with_static_runtimes"; then
+		case " $predeps $postdeps " in
+		*" $a_deplib "*)
+		  func_append newdeplibs " $a_deplib"
+		  a_deplib=
+		  ;;
+		esac
+	      fi
+	      if test -n "$a_deplib"; then
+		libname=`eval "\\$ECHO \"$libname_spec\""`
+		for i in $lib_search_path $sys_lib_search_path $shlib_search_path; do
+		  potential_libs=`ls $i/$libname[.-]* 2>/dev/null`
+		  for potent_lib in $potential_libs; do
+		    potlib=$potent_lib # see symlink-check above in file_magic test
+		    if eval "\$ECHO \"$potent_lib\"" 2>/dev/null | $SED 10q | \
+		       $EGREP "$match_pattern_regex" > /dev/null; then
+		      func_append newdeplibs " $a_deplib"
+		      a_deplib=
+		      break 2
+		    fi
+		  done
+		done
+	      fi
+	      if test -n "$a_deplib"; then
+		droppeddeps=yes
+		echo
+		$ECHO "*** Warning: linker path does not have real file for library $a_deplib."
+		echo "*** I have the capability to make that library automatically link in when"
+		echo "*** you link to this library.  But I can only do this if you have a"
+		echo "*** shared version of the library, which you do not appear to have"
+		echo "*** because I did check the linker path looking for a file starting"
+		if test -z "$potlib"; then
+		  $ECHO "*** with $libname but no candidates were found. (...for regex pattern test)"
+		else
+		  $ECHO "*** with $libname and none of the candidates passed a file format test"
+		  $ECHO "*** using a regex pattern. Last file checked: $potlib"
+		fi
+	      fi
+	      ;;
+	    *)
+	      # Add a -L argument.
+	      func_append newdeplibs " $a_deplib"
+	      ;;
+	    esac
+	  done # Gone through all deplibs.
+	  ;;
+	none | unknown | *)
+	  newdeplibs=
+	  tmp_deplibs=`$ECHO " $deplibs" | $SED 's/ -lc$//; s/ -[LR][^ ]*//g'`
+	  if test yes = "$allow_libtool_libs_with_static_runtimes"; then
+	    for i in $predeps $postdeps; do
+	      # can't use Xsed below, because $i might contain '/'
+	      tmp_deplibs=`$ECHO " $tmp_deplibs" | $SED "s|$i||"`
+	    done
+	  fi
+	  case $tmp_deplibs in
+	  *[!\	\ ]*)
+	    echo
+	    if test none = "$deplibs_check_method"; then
+	      echo "*** Warning: inter-library dependencies are not supported in this platform."
+	    else
+	      echo "*** Warning: inter-library dependencies are not known to be supported."
+	    fi
+	    echo "*** All declared inter-library dependencies are being dropped."
+	    droppeddeps=yes
+	    ;;
+	  esac
+	  ;;
+	esac
+	versuffix=$versuffix_save
+	major=$major_save
+	release=$release_save
+	libname=$libname_save
+	name=$name_save
+
+	case $host in
+	*-*-rhapsody* | *-*-darwin1.[012])
+	  # On Rhapsody replace the C library with the System framework
+	  newdeplibs=`$ECHO " $newdeplibs" | $SED 's/ -lc / System.ltframework /'`
+	  ;;
+	esac
+
+	if test yes = "$droppeddeps"; then
+	  if test yes = "$module"; then
+	    echo
+	    echo "*** Warning: libtool could not satisfy all declared inter-library"
+	    $ECHO "*** dependencies of module $libname.  Therefore, libtool will create"
+	    echo "*** a static module, that should work as long as the dlopening"
+	    echo "*** application is linked with the -dlopen flag."
+	    if test -z "$global_symbol_pipe"; then
+	      echo
+	      echo "*** However, this would only work if libtool was able to extract symbol"
+	      echo "*** lists from a program, using 'nm' or equivalent, but libtool could"
+	      echo "*** not find such a program.  So, this module is probably useless."
+	      echo "*** 'nm' from GNU binutils and a full rebuild may help."
+	    fi
+	    if test no = "$build_old_libs"; then
+	      oldlibs=$output_objdir/$libname.$libext
+	      build_libtool_libs=module
+	      build_old_libs=yes
+	    else
+	      build_libtool_libs=no
+	    fi
+	  else
+	    echo "*** The inter-library dependencies that have been dropped here will be"
+	    echo "*** automatically added whenever a program is linked with this library"
+	    echo "*** or is declared to -dlopen it."
+
+	    if test no = "$allow_undefined"; then
+	      echo
+	      echo "*** Since this library must not contain undefined symbols,"
+	      echo "*** because either the platform does not support them or"
+	      echo "*** it was explicitly requested with -no-undefined,"
+	      echo "*** libtool will only create a static version of it."
+	      if test no = "$build_old_libs"; then
+		oldlibs=$output_objdir/$libname.$libext
+		build_libtool_libs=module
+		build_old_libs=yes
+	      else
+		build_libtool_libs=no
+	      fi
+	    fi
+	  fi
+	fi
+	# Done checking deplibs!
+	deplibs=$newdeplibs
+      fi
+      # Time to change all our "foo.ltframework" stuff back to "-framework foo"
+      case $host in
+	*-*-darwin*)
+	  newdeplibs=`$ECHO " $newdeplibs" | $SED 's% \([^ $]*\).ltframework% -framework \1%g'`
+	  new_inherited_linker_flags=`$ECHO " $new_inherited_linker_flags" | $SED 's% \([^ $]*\).ltframework% -framework \1%g'`
+	  deplibs=`$ECHO " $deplibs" | $SED 's% \([^ $]*\).ltframework% -framework \1%g'`
+	  ;;
+      esac
+
+      # move library search paths that coincide with paths to not yet
+      # installed libraries to the beginning of the library search list
+      new_libs=
+      for path in $notinst_path; do
+	case " $new_libs " in
+	*" -L$path/$objdir "*) ;;
+	*)
+	  case " $deplibs " in
+	  *" -L$path/$objdir "*)
+	    func_append new_libs " -L$path/$objdir" ;;
+	  esac
+	  ;;
+	esac
+      done
+      for deplib in $deplibs; do
+	case $deplib in
+	-L*)
+	  case " $new_libs " in
+	  *" $deplib "*) ;;
+	  *) func_append new_libs " $deplib" ;;
+	  esac
+	  ;;
+	*) func_append new_libs " $deplib" ;;
+	esac
+      done
+      deplibs=$new_libs
+
+      # All the library-specific variables (install_libdir is set above).
+      library_names=
+      old_library=
+      dlname=
+
+      # Test again, we may have decided not to build it any more
+      if test yes = "$build_libtool_libs"; then
+	# Remove $wl instances when linking with ld.
+	# FIXME: should test the right _cmds variable.
+	case $archive_cmds in
+	  *\$LD\ *) wl= ;;
+        esac
+	if test yes = "$hardcode_into_libs"; then
+	  # Hardcode the library paths
+	  hardcode_libdirs=
+	  dep_rpath=
+	  rpath=$finalize_rpath
+	  test relink = "$opt_mode" || rpath=$compile_rpath$rpath
+	  for libdir in $rpath; do
+	    if test -n "$hardcode_libdir_flag_spec"; then
+	      if test -n "$hardcode_libdir_separator"; then
+		func_replace_sysroot "$libdir"
+		libdir=$func_replace_sysroot_result
+		if test -z "$hardcode_libdirs"; then
+		  hardcode_libdirs=$libdir
+		else
+		  # Just accumulate the unique libdirs.
+		  case $hardcode_libdir_separator$hardcode_libdirs$hardcode_libdir_separator in
+		  *"$hardcode_libdir_separator$libdir$hardcode_libdir_separator"*)
+		    ;;
+		  *)
+		    func_append hardcode_libdirs "$hardcode_libdir_separator$libdir"
+		    ;;
+		  esac
+		fi
+	      else
+		eval flag=\"$hardcode_libdir_flag_spec\"
+		func_append dep_rpath " $flag"
+	      fi
+	    elif test -n "$runpath_var"; then
+	      case "$perm_rpath " in
+	      *" $libdir "*) ;;
+	      *) func_append perm_rpath " $libdir" ;;
+	      esac
+	    fi
+	  done
+	  # Substitute the hardcoded libdirs into the rpath.
+	  if test -n "$hardcode_libdir_separator" &&
+	     test -n "$hardcode_libdirs"; then
+	    libdir=$hardcode_libdirs
+	    eval "dep_rpath=\"$hardcode_libdir_flag_spec\""
+	  fi
+	  if test -n "$runpath_var" && test -n "$perm_rpath"; then
+	    # We should set the runpath_var.
+	    rpath=
+	    for dir in $perm_rpath; do
+	      func_append rpath "$dir:"
+	    done
+	    eval "$runpath_var='$rpath\$$runpath_var'; export $runpath_var"
+	  fi
+	  test -n "$dep_rpath" && deplibs="$dep_rpath $deplibs"
+	fi
+
+	shlibpath=$finalize_shlibpath
+	test relink = "$opt_mode" || shlibpath=$compile_shlibpath$shlibpath
+	if test -n "$shlibpath"; then
+	  eval "$shlibpath_var='$shlibpath\$$shlibpath_var'; export $shlibpath_var"
+	fi
+
+	# Get the real and link names of the library.
+	eval shared_ext=\"$shrext_cmds\"
+	eval library_names=\"$library_names_spec\"
+	set dummy $library_names
+	shift
+	realname=$1
+	shift
+
+	if test -n "$soname_spec"; then
+	  eval soname=\"$soname_spec\"
+	else
+	  soname=$realname
+	fi
+	if test -z "$dlname"; then
+	  dlname=$soname
+	fi
+
+	lib=$output_objdir/$realname
+	linknames=
+	for link
+	do
+	  func_append linknames " $link"
+	done
+
+	# Use standard objects if they are pic
+	test -z "$pic_flag" && libobjs=`$ECHO "$libobjs" | $SP2NL | $SED "$lo2o" | $NL2SP`
+	test "X$libobjs" = "X " && libobjs=
+
+	delfiles=
+	if test -n "$export_symbols" && test -n "$include_expsyms"; then
+	  $opt_dry_run || cp "$export_symbols" "$output_objdir/$libname.uexp"
+	  export_symbols=$output_objdir/$libname.uexp
+	  func_append delfiles " $export_symbols"
+	fi
+
+	orig_export_symbols=
+	case $host_os in
+	cygwin* | mingw* | cegcc*)
+	  if test -n "$export_symbols" && test -z "$export_symbols_regex"; then
+	    # exporting using user supplied symfile
+	    func_dll_def_p "$export_symbols" || {
+	      # and it's NOT already a .def file. Must figure out
+	      # which of the given symbols are data symbols and tag
+	      # them as such. So, trigger use of export_symbols_cmds.
+	      # export_symbols gets reassigned inside the "prepare
+	      # the list of exported symbols" if statement, so the
+	      # include_expsyms logic still works.
+	      orig_export_symbols=$export_symbols
+	      export_symbols=
+	      always_export_symbols=yes
+	    }
+	  fi
+	  ;;
+	esac
+
+	# Prepare the list of exported symbols
+	if test -z "$export_symbols"; then
+	  if test yes = "$always_export_symbols" || test -n "$export_symbols_regex"; then
+	    func_verbose "generating symbol list for '$libname.la'"
+	    export_symbols=$output_objdir/$libname.exp
+	    $opt_dry_run || $RM $export_symbols
+	    cmds=$export_symbols_cmds
+	    save_ifs=$IFS; IFS='~'
+	    for cmd1 in $cmds; do
+	      IFS=$save_ifs
+	      # Take the normal branch if the nm_file_list_spec branch
+	      # doesn't work or if tool conversion is not needed.
+	      case $nm_file_list_spec~$to_tool_file_cmd in
+		*~func_convert_file_noop | *~func_convert_file_msys_to_w32 | ~*)
+		  try_normal_branch=yes
+		  eval cmd=\"$cmd1\"
+		  func_len " $cmd"
+		  len=$func_len_result
+		  ;;
+		*)
+		  try_normal_branch=no
+		  ;;
+	      esac
+	      if test yes = "$try_normal_branch" \
+		 && { test "$len" -lt "$max_cmd_len" \
+		      || test "$max_cmd_len" -le -1; }
+	      then
+		func_show_eval "$cmd" 'exit $?'
+		skipped_export=false
+	      elif test -n "$nm_file_list_spec"; then
+		func_basename "$output"
+		output_la=$func_basename_result
+		save_libobjs=$libobjs
+		save_output=$output
+		output=$output_objdir/$output_la.nm
+		func_to_tool_file "$output"
+		libobjs=$nm_file_list_spec$func_to_tool_file_result
+		func_append delfiles " $output"
+		func_verbose "creating $NM input file list: $output"
+		for obj in $save_libobjs; do
+		  func_to_tool_file "$obj"
+		  $ECHO "$func_to_tool_file_result"
+		done > "$output"
+		eval cmd=\"$cmd1\"
+		func_show_eval "$cmd" 'exit $?'
+		output=$save_output
+		libobjs=$save_libobjs
+		skipped_export=false
+	      else
+		# The command line is too long to execute in one step.
+		func_verbose "using reloadable object file for export list..."
+		skipped_export=:
+		# Break out early, otherwise skipped_export may be
+		# set to false by a later but shorter cmd.
+		break
+	      fi
+	    done
+	    IFS=$save_ifs
+	    if test -n "$export_symbols_regex" && test : != "$skipped_export"; then
+	      func_show_eval '$EGREP -e "$export_symbols_regex" "$export_symbols" > "${export_symbols}T"'
+	      func_show_eval '$MV "${export_symbols}T" "$export_symbols"'
+	    fi
+	  fi
+	fi
+
+	if test -n "$export_symbols" && test -n "$include_expsyms"; then
+	  tmp_export_symbols=$export_symbols
+	  test -n "$orig_export_symbols" && tmp_export_symbols=$orig_export_symbols
+	  $opt_dry_run || eval '$ECHO "$include_expsyms" | $SP2NL >> "$tmp_export_symbols"'
+	fi
+
+	if test : != "$skipped_export" && test -n "$orig_export_symbols"; then
+	  # The given exports_symbols file has to be filtered, so filter it.
+	  func_verbose "filter symbol list for '$libname.la' to tag DATA exports"
+	  # FIXME: $output_objdir/$libname.filter potentially contains lots of
+	  # 's' commands, which not all seds can handle. GNU sed should be fine
+	  # though. Also, the filter scales superlinearly with the number of
+	  # global variables. join(1) would be nice here, but unfortunately
+	  # isn't a blessed tool.
+	  $opt_dry_run || $SED -e '/[ ,]DATA/!d;s,\(.*\)\([ \,].*\),s|^\1$|\1\2|,' < $export_symbols > $output_objdir/$libname.filter
+	  func_append delfiles " $export_symbols $output_objdir/$libname.filter"
+	  export_symbols=$output_objdir/$libname.def
+	  $opt_dry_run || $SED -f $output_objdir/$libname.filter < $orig_export_symbols > $export_symbols
+	fi
+
+	tmp_deplibs=
+	for test_deplib in $deplibs; do
+	  case " $convenience " in
+	  *" $test_deplib "*) ;;
+	  *)
+	    func_append tmp_deplibs " $test_deplib"
+	    ;;
+	  esac
+	done
+	deplibs=$tmp_deplibs
+
+	if test -n "$convenience"; then
+	  if test -n "$whole_archive_flag_spec" &&
+	    test yes = "$compiler_needs_object" &&
+	    test -z "$libobjs"; then
+	    # extract the archives, so we have objects to list.
+	    # TODO: could optimize this to just extract one archive.
+	    whole_archive_flag_spec=
+	  fi
+	  if test -n "$whole_archive_flag_spec"; then
+	    save_libobjs=$libobjs
+	    eval libobjs=\"\$libobjs $whole_archive_flag_spec\"
+	    test "X$libobjs" = "X " && libobjs=
+	  else
+	    gentop=$output_objdir/${outputname}x
+	    func_append generated " $gentop"
+
+	    func_extract_archives $gentop $convenience
+	    func_append libobjs " $func_extract_archives_result"
+	    test "X$libobjs" = "X " && libobjs=
+	  fi
+	fi
+
+	if test yes = "$thread_safe" && test -n "$thread_safe_flag_spec"; then
+	  eval flag=\"$thread_safe_flag_spec\"
+	  func_append linker_flags " $flag"
+	fi
+
+	# Make a backup of the uninstalled library when relinking
+	if test relink = "$opt_mode"; then
+	  $opt_dry_run || eval '(cd $output_objdir && $RM ${realname}U && $MV $realname ${realname}U)' || exit $?
+	fi
+
+	# Do each of the archive commands.
+	if test yes = "$module" && test -n "$module_cmds"; then
+	  if test -n "$export_symbols" && test -n "$module_expsym_cmds"; then
+	    eval test_cmds=\"$module_expsym_cmds\"
+	    cmds=$module_expsym_cmds
+	  else
+	    eval test_cmds=\"$module_cmds\"
+	    cmds=$module_cmds
+	  fi
+	else
+	  if test -n "$export_symbols" && test -n "$archive_expsym_cmds"; then
+	    eval test_cmds=\"$archive_expsym_cmds\"
+	    cmds=$archive_expsym_cmds
+	  else
+	    eval test_cmds=\"$archive_cmds\"
+	    cmds=$archive_cmds
+	  fi
+	fi
+
+	if test : != "$skipped_export" &&
+	   func_len " $test_cmds" &&
+	   len=$func_len_result &&
+	   test "$len" -lt "$max_cmd_len" || test "$max_cmd_len" -le -1; then
+	  :
+	else
+	  # The command line is too long to link in one step, link piecewise
+	  # or, if using GNU ld and skipped_export is not :, use a linker
+	  # script.
+
+	  # Save the value of $output and $libobjs because we want to
+	  # use them later.  If we have whole_archive_flag_spec, we
+	  # want to use save_libobjs as it was before
+	  # whole_archive_flag_spec was expanded, because we can't
+	  # assume the linker understands whole_archive_flag_spec.
+	  # This may have to be revisited, in case too many
+	  # convenience libraries get linked in and end up exceeding
+	  # the spec.
+	  if test -z "$convenience" || test -z "$whole_archive_flag_spec"; then
+	    save_libobjs=$libobjs
+	  fi
+	  save_output=$output
+	  func_basename "$output"
+	  output_la=$func_basename_result
+
+	  # Clear the reloadable object creation command queue and
+	  # initialize k to one.
+	  test_cmds=
+	  concat_cmds=
+	  objlist=
+	  last_robj=
+	  k=1
+
+	  if test -n "$save_libobjs" && test : != "$skipped_export" && test yes = "$with_gnu_ld"; then
+	    output=$output_objdir/$output_la.lnkscript
+	    func_verbose "creating GNU ld script: $output"
+	    echo 'INPUT (' > $output
+	    for obj in $save_libobjs
+	    do
+	      func_to_tool_file "$obj"
+	      $ECHO "$func_to_tool_file_result" >> $output
+	    done
+	    echo ')' >> $output
+	    func_append delfiles " $output"
+	    func_to_tool_file "$output"
+	    output=$func_to_tool_file_result
+	  elif test -n "$save_libobjs" && test : != "$skipped_export" && test -n "$file_list_spec"; then
+	    output=$output_objdir/$output_la.lnk
+	    func_verbose "creating linker input file list: $output"
+	    : > $output
+	    set x $save_libobjs
+	    shift
+	    firstobj=
+	    if test yes = "$compiler_needs_object"; then
+	      firstobj="$1 "
+	      shift
+	    fi
+	    for obj
+	    do
+	      func_to_tool_file "$obj"
+	      $ECHO "$func_to_tool_file_result" >> $output
+	    done
+	    func_append delfiles " $output"
+	    func_to_tool_file "$output"
+	    output=$firstobj\"$file_list_spec$func_to_tool_file_result\"
+	  else
+	    if test -n "$save_libobjs"; then
+	      func_verbose "creating reloadable object files..."
+	      output=$output_objdir/$output_la-$k.$objext
+	      eval test_cmds=\"$reload_cmds\"
+	      func_len " $test_cmds"
+	      len0=$func_len_result
+	      len=$len0
+
+	      # Loop over the list of objects to be linked.
+	      for obj in $save_libobjs
+	      do
+		func_len " $obj"
+		func_arith $len + $func_len_result
+		len=$func_arith_result
+		if test -z "$objlist" ||
+		   test "$len" -lt "$max_cmd_len"; then
+		  func_append objlist " $obj"
+		else
+		  # The command $test_cmds is almost too long, add a
+		  # command to the queue.
+		  if test 1 -eq "$k"; then
+		    # The first file doesn't have a previous command to add.
+		    reload_objs=$objlist
+		    eval concat_cmds=\"$reload_cmds\"
+		  else
+		    # All subsequent reloadable object files will link in
+		    # the last one created.
+		    reload_objs="$objlist $last_robj"
+		    eval concat_cmds=\"\$concat_cmds~$reload_cmds~\$RM $last_robj\"
+		  fi
+		  last_robj=$output_objdir/$output_la-$k.$objext
+		  func_arith $k + 1
+		  k=$func_arith_result
+		  output=$output_objdir/$output_la-$k.$objext
+		  objlist=" $obj"
+		  func_len " $last_robj"
+		  func_arith $len0 + $func_len_result
+		  len=$func_arith_result
+		fi
+	      done
+	      # Handle the remaining objects by creating one last
+	      # reloadable object file.  All subsequent reloadable object
+	      # files will link in the last one created.
+	      test -z "$concat_cmds" || concat_cmds=$concat_cmds~
+	      reload_objs="$objlist $last_robj"
+	      eval concat_cmds=\"\$concat_cmds$reload_cmds\"
+	      if test -n "$last_robj"; then
+	        eval concat_cmds=\"\$concat_cmds~\$RM $last_robj\"
+	      fi
+	      func_append delfiles " $output"
+
+	    else
+	      output=
+	    fi
+
+	    ${skipped_export-false} && {
+	      func_verbose "generating symbol list for '$libname.la'"
+	      export_symbols=$output_objdir/$libname.exp
+	      $opt_dry_run || $RM $export_symbols
+	      libobjs=$output
+	      # Append the command to create the export file.
+	      test -z "$concat_cmds" || concat_cmds=$concat_cmds~
+	      eval concat_cmds=\"\$concat_cmds$export_symbols_cmds\"
+	      if test -n "$last_robj"; then
+		eval concat_cmds=\"\$concat_cmds~\$RM $last_robj\"
+	      fi
+	    }
+
+	    test -n "$save_libobjs" &&
+	      func_verbose "creating a temporary reloadable object file: $output"
+
+	    # Loop through the commands generated above and execute them.
+	    save_ifs=$IFS; IFS='~'
+	    for cmd in $concat_cmds; do
+	      IFS=$save_ifs
+	      $opt_quiet || {
+		  func_quote_for_expand "$cmd"
+		  eval "func_echo $func_quote_for_expand_result"
+	      }
+	      $opt_dry_run || eval "$cmd" || {
+		lt_exit=$?
+
+		# Restore the uninstalled library and exit
+		if test relink = "$opt_mode"; then
+		  ( cd "$output_objdir" && \
+		    $RM "${realname}T" && \
+		    $MV "${realname}U" "$realname" )
+		fi
+
+		exit $lt_exit
+	      }
+	    done
+	    IFS=$save_ifs
+
+	    if test -n "$export_symbols_regex" && ${skipped_export-false}; then
+	      func_show_eval '$EGREP -e "$export_symbols_regex" "$export_symbols" > "${export_symbols}T"'
+	      func_show_eval '$MV "${export_symbols}T" "$export_symbols"'
+	    fi
+	  fi
+
+          ${skipped_export-false} && {
+	    if test -n "$export_symbols" && test -n "$include_expsyms"; then
+	      tmp_export_symbols=$export_symbols
+	      test -n "$orig_export_symbols" && tmp_export_symbols=$orig_export_symbols
+	      $opt_dry_run || eval '$ECHO "$include_expsyms" | $SP2NL >> "$tmp_export_symbols"'
+	    fi
+
+	    if test -n "$orig_export_symbols"; then
+	      # The given exports_symbols file has to be filtered, so filter it.
+	      func_verbose "filter symbol list for '$libname.la' to tag DATA exports"
+	      # FIXME: $output_objdir/$libname.filter potentially contains lots of
+	      # 's' commands, which not all seds can handle. GNU sed should be fine
+	      # though. Also, the filter scales superlinearly with the number of
+	      # global variables. join(1) would be nice here, but unfortunately
+	      # isn't a blessed tool.
+	      $opt_dry_run || $SED -e '/[ ,]DATA/!d;s,\(.*\)\([ \,].*\),s|^\1$|\1\2|,' < $export_symbols > $output_objdir/$libname.filter
+	      func_append delfiles " $export_symbols $output_objdir/$libname.filter"
+	      export_symbols=$output_objdir/$libname.def
+	      $opt_dry_run || $SED -f $output_objdir/$libname.filter < $orig_export_symbols > $export_symbols
+	    fi
+	  }
+
+	  libobjs=$output
+	  # Restore the value of output.
+	  output=$save_output
+
+	  if test -n "$convenience" && test -n "$whole_archive_flag_spec"; then
+	    eval libobjs=\"\$libobjs $whole_archive_flag_spec\"
+	    test "X$libobjs" = "X " && libobjs=
+	  fi
+	  # Expand the library linking commands again to reset the
+	  # value of $libobjs for piecewise linking.
+
+	  # Do each of the archive commands.
+	  if test yes = "$module" && test -n "$module_cmds"; then
+	    if test -n "$export_symbols" && test -n "$module_expsym_cmds"; then
+	      cmds=$module_expsym_cmds
+	    else
+	      cmds=$module_cmds
+	    fi
+	  else
+	    if test -n "$export_symbols" && test -n "$archive_expsym_cmds"; then
+	      cmds=$archive_expsym_cmds
+	    else
+	      cmds=$archive_cmds
+	    fi
+	  fi
+	fi
+
+	if test -n "$delfiles"; then
+	  # Append the command to remove temporary files to $cmds.
+	  eval cmds=\"\$cmds~\$RM $delfiles\"
+	fi
+
+	# Add any objects from preloaded convenience libraries
+	if test -n "$dlprefiles"; then
+	  gentop=$output_objdir/${outputname}x
+	  func_append generated " $gentop"
+
+	  func_extract_archives $gentop $dlprefiles
+	  func_append libobjs " $func_extract_archives_result"
+	  test "X$libobjs" = "X " && libobjs=
+	fi
+
+	save_ifs=$IFS; IFS='~'
+	for cmd in $cmds; do
+	  IFS=$sp$nl
+	  eval cmd=\"$cmd\"
+	  IFS=$save_ifs
+	  $opt_quiet || {
+	    func_quote_for_expand "$cmd"
+	    eval "func_echo $func_quote_for_expand_result"
+	  }
+	  $opt_dry_run || eval "$cmd" || {
+	    lt_exit=$?
+
+	    # Restore the uninstalled library and exit
+	    if test relink = "$opt_mode"; then
+	      ( cd "$output_objdir" && \
+	        $RM "${realname}T" && \
+		$MV "${realname}U" "$realname" )
+	    fi
+
+	    exit $lt_exit
+	  }
+	done
+	IFS=$save_ifs
+
+	# Restore the uninstalled library and exit
+	if test relink = "$opt_mode"; then
+	  $opt_dry_run || eval '(cd $output_objdir && $RM ${realname}T && $MV $realname ${realname}T && $MV ${realname}U $realname)' || exit $?
+
+	  if test -n "$convenience"; then
+	    if test -z "$whole_archive_flag_spec"; then
+	      func_show_eval '${RM}r "$gentop"'
+	    fi
+	  fi
+
+	  exit $EXIT_SUCCESS
+	fi
+
+	# Create links to the real library.
+	for linkname in $linknames; do
+	  if test "$realname" != "$linkname"; then
+	    func_show_eval '(cd "$output_objdir" && $RM "$linkname" && $LN_S "$realname" "$linkname")' 'exit $?'
+	  fi
+	done
+
+	# If -module or -export-dynamic was specified, set the dlname.
+	if test yes = "$module" || test yes = "$export_dynamic"; then
+	  # On all known operating systems, these are identical.
+	  dlname=$soname
+	fi
+      fi
+      ;;
+
+    obj)
+      if test -n "$dlfiles$dlprefiles" || test no != "$dlself"; then
+	func_warning "'-dlopen' is ignored for objects"
+      fi
+
+      case " $deplibs" in
+      *\ -l* | *\ -L*)
+	func_warning "'-l' and '-L' are ignored for objects" ;;
+      esac
+
+      test -n "$rpath" && \
+	func_warning "'-rpath' is ignored for objects"
+
+      test -n "$xrpath" && \
+	func_warning "'-R' is ignored for objects"
+
+      test -n "$vinfo" && \
+	func_warning "'-version-info' is ignored for objects"
+
+      test -n "$release" && \
+	func_warning "'-release' is ignored for objects"
+
+      case $output in
+      *.lo)
+	test -n "$objs$old_deplibs" && \
+	  func_fatal_error "cannot build library object '$output' from non-libtool objects"
+
+	libobj=$output
+	func_lo2o "$libobj"
+	obj=$func_lo2o_result
+	;;
+      *)
+	libobj=
+	obj=$output
+	;;
+      esac
+
+      # Delete the old objects.
+      $opt_dry_run || $RM $obj $libobj
+
+      # Objects from convenience libraries.  This assumes
+      # single-version convenience libraries.  Whenever we create
+      # different ones for PIC/non-PIC, this we'll have to duplicate
+      # the extraction.
+      reload_conv_objs=
+      gentop=
+      # if reload_cmds runs $LD directly, get rid of -Wl from
+      # whole_archive_flag_spec and hope we can get by with turning comma
+      # into space.
+      case $reload_cmds in
+        *\$LD[\ \$]*) wl= ;;
+      esac
+      if test -n "$convenience"; then
+	if test -n "$whole_archive_flag_spec"; then
+	  eval tmp_whole_archive_flags=\"$whole_archive_flag_spec\"
+	  test -n "$wl" || tmp_whole_archive_flags=`$ECHO "$tmp_whole_archive_flags" | $SED 's|,| |g'`
+	  reload_conv_objs=$reload_objs\ $tmp_whole_archive_flags
+	else
+	  gentop=$output_objdir/${obj}x
+	  func_append generated " $gentop"
+
+	  func_extract_archives $gentop $convenience
+	  reload_conv_objs="$reload_objs $func_extract_archives_result"
+	fi
+      fi
+
+      # If we're not building shared, we need to use non_pic_objs
+      test yes = "$build_libtool_libs" || libobjs=$non_pic_objects
+
+      # Create the old-style object.
+      reload_objs=$objs$old_deplibs' '`$ECHO "$libobjs" | $SP2NL | $SED "/\.$libext$/d; /\.lib$/d; $lo2o" | $NL2SP`' '$reload_conv_objs
+
+      output=$obj
+      func_execute_cmds "$reload_cmds" 'exit $?'
+
+      # Exit if we aren't doing a library object file.
+      if test -z "$libobj"; then
+	if test -n "$gentop"; then
+	  func_show_eval '${RM}r "$gentop"'
+	fi
+
+	exit $EXIT_SUCCESS
+      fi
+
+      test yes = "$build_libtool_libs" || {
+	if test -n "$gentop"; then
+	  func_show_eval '${RM}r "$gentop"'
+	fi
+
+	# Create an invalid libtool object if no PIC, so that we don't
+	# accidentally link it into a program.
+	# $show "echo timestamp > $libobj"
+	# $opt_dry_run || eval "echo timestamp > $libobj" || exit $?
+	exit $EXIT_SUCCESS
+      }
+
+      if test -n "$pic_flag" || test default != "$pic_mode"; then
+	# Only do commands if we really have different PIC objects.
+	reload_objs="$libobjs $reload_conv_objs"
+	output=$libobj
+	func_execute_cmds "$reload_cmds" 'exit $?'
+      fi
+
+      if test -n "$gentop"; then
+	func_show_eval '${RM}r "$gentop"'
+      fi
+
+      exit $EXIT_SUCCESS
+      ;;
+
+    prog)
+      case $host in
+	*cygwin*) func_stripname '' '.exe' "$output"
+	          output=$func_stripname_result.exe;;
+      esac
+      test -n "$vinfo" && \
+	func_warning "'-version-info' is ignored for programs"
+
+      test -n "$release" && \
+	func_warning "'-release' is ignored for programs"
+
+      $preload \
+	&& test unknown,unknown,unknown = "$dlopen_support,$dlopen_self,$dlopen_self_static" \
+	&& func_warning "'LT_INIT([dlopen])' not used. Assuming no dlopen support."
+
+      case $host in
+      *-*-rhapsody* | *-*-darwin1.[012])
+	# On Rhapsody replace the C library is the System framework
+	compile_deplibs=`$ECHO " $compile_deplibs" | $SED 's/ -lc / System.ltframework /'`
+	finalize_deplibs=`$ECHO " $finalize_deplibs" | $SED 's/ -lc / System.ltframework /'`
+	;;
+      esac
+
+      case $host in
+      *-*-darwin*)
+	# Don't allow lazy linking, it breaks C++ global constructors
+	# But is supposedly fixed on 10.4 or later (yay!).
+	if test CXX = "$tagname"; then
+	  case ${MACOSX_DEPLOYMENT_TARGET-10.0} in
+	    10.[0123])
+	      func_append compile_command " $wl-bind_at_load"
+	      func_append finalize_command " $wl-bind_at_load"
+	    ;;
+	  esac
+	fi
+	# Time to change all our "foo.ltframework" stuff back to "-framework foo"
+	compile_deplibs=`$ECHO " $compile_deplibs" | $SED 's% \([^ $]*\).ltframework% -framework \1%g'`
+	finalize_deplibs=`$ECHO " $finalize_deplibs" | $SED 's% \([^ $]*\).ltframework% -framework \1%g'`
+	;;
+      esac
+
+
+      # move library search paths that coincide with paths to not yet
+      # installed libraries to the beginning of the library search list
+      new_libs=
+      for path in $notinst_path; do
+	case " $new_libs " in
+	*" -L$path/$objdir "*) ;;
+	*)
+	  case " $compile_deplibs " in
+	  *" -L$path/$objdir "*)
+	    func_append new_libs " -L$path/$objdir" ;;
+	  esac
+	  ;;
+	esac
+      done
+      for deplib in $compile_deplibs; do
+	case $deplib in
+	-L*)
+	  case " $new_libs " in
+	  *" $deplib "*) ;;
+	  *) func_append new_libs " $deplib" ;;
+	  esac
+	  ;;
+	*) func_append new_libs " $deplib" ;;
+	esac
+      done
+      compile_deplibs=$new_libs
+
+
+      func_append compile_command " $compile_deplibs"
+      func_append finalize_command " $finalize_deplibs"
+
+      if test -n "$rpath$xrpath"; then
+	# If the user specified any rpath flags, then add them.
+	for libdir in $rpath $xrpath; do
+	  # This is the magic to use -rpath.
+	  case "$finalize_rpath " in
+	  *" $libdir "*) ;;
+	  *) func_append finalize_rpath " $libdir" ;;
+	  esac
+	done
+      fi
+
+      # Now hardcode the library paths
+      rpath=
+      hardcode_libdirs=
+      for libdir in $compile_rpath $finalize_rpath; do
+	if test -n "$hardcode_libdir_flag_spec"; then
+	  if test -n "$hardcode_libdir_separator"; then
+	    if test -z "$hardcode_libdirs"; then
+	      hardcode_libdirs=$libdir
+	    else
+	      # Just accumulate the unique libdirs.
+	      case $hardcode_libdir_separator$hardcode_libdirs$hardcode_libdir_separator in
+	      *"$hardcode_libdir_separator$libdir$hardcode_libdir_separator"*)
+		;;
+	      *)
+		func_append hardcode_libdirs "$hardcode_libdir_separator$libdir"
+		;;
+	      esac
+	    fi
+	  else
+	    eval flag=\"$hardcode_libdir_flag_spec\"
+	    func_append rpath " $flag"
+	  fi
+	elif test -n "$runpath_var"; then
+	  case "$perm_rpath " in
+	  *" $libdir "*) ;;
+	  *) func_append perm_rpath " $libdir" ;;
+	  esac
+	fi
+	case $host in
+	*-*-cygwin* | *-*-mingw* | *-*-pw32* | *-*-os2* | *-cegcc*)
+	  testbindir=`$ECHO "$libdir" | $SED -e 's*/lib$*/bin*'`
+	  case :$dllsearchpath: in
+	  *":$libdir:"*) ;;
+	  ::) dllsearchpath=$libdir;;
+	  *) func_append dllsearchpath ":$libdir";;
+	  esac
+	  case :$dllsearchpath: in
+	  *":$testbindir:"*) ;;
+	  ::) dllsearchpath=$testbindir;;
+	  *) func_append dllsearchpath ":$testbindir";;
+	  esac
+	  ;;
+	esac
+      done
+      # Substitute the hardcoded libdirs into the rpath.
+      if test -n "$hardcode_libdir_separator" &&
+	 test -n "$hardcode_libdirs"; then
+	libdir=$hardcode_libdirs
+	eval rpath=\" $hardcode_libdir_flag_spec\"
+      fi
+      compile_rpath=$rpath
+
+      rpath=
+      hardcode_libdirs=
+      for libdir in $finalize_rpath; do
+	if test -n "$hardcode_libdir_flag_spec"; then
+	  if test -n "$hardcode_libdir_separator"; then
+	    if test -z "$hardcode_libdirs"; then
+	      hardcode_libdirs=$libdir
+	    else
+	      # Just accumulate the unique libdirs.
+	      case $hardcode_libdir_separator$hardcode_libdirs$hardcode_libdir_separator in
+	      *"$hardcode_libdir_separator$libdir$hardcode_libdir_separator"*)
+		;;
+	      *)
+		func_append hardcode_libdirs "$hardcode_libdir_separator$libdir"
+		;;
+	      esac
+	    fi
+	  else
+	    eval flag=\"$hardcode_libdir_flag_spec\"
+	    func_append rpath " $flag"
+	  fi
+	elif test -n "$runpath_var"; then
+	  case "$finalize_perm_rpath " in
+	  *" $libdir "*) ;;
+	  *) func_append finalize_perm_rpath " $libdir" ;;
+	  esac
+	fi
+      done
+      # Substitute the hardcoded libdirs into the rpath.
+      if test -n "$hardcode_libdir_separator" &&
+	 test -n "$hardcode_libdirs"; then
+	libdir=$hardcode_libdirs
+	eval rpath=\" $hardcode_libdir_flag_spec\"
+      fi
+      finalize_rpath=$rpath
+
+      if test -n "$libobjs" && test yes = "$build_old_libs"; then
+	# Transform all the library objects into standard objects.
+	compile_command=`$ECHO "$compile_command" | $SP2NL | $SED "$lo2o" | $NL2SP`
+	finalize_command=`$ECHO "$finalize_command" | $SP2NL | $SED "$lo2o" | $NL2SP`
+      fi
+
+      func_generate_dlsyms "$outputname" "@PROGRAM@" false
+
+      # template prelinking step
+      if test -n "$prelink_cmds"; then
+	func_execute_cmds "$prelink_cmds" 'exit $?'
+      fi
+
+      wrappers_required=:
+      case $host in
+      *cegcc* | *mingw32ce*)
+        # Disable wrappers for cegcc and mingw32ce hosts, we are cross compiling anyway.
+        wrappers_required=false
+        ;;
+      *cygwin* | *mingw* )
+        test yes = "$build_libtool_libs" || wrappers_required=false
+        ;;
+      *)
+        if test no = "$need_relink" || test yes != "$build_libtool_libs"; then
+          wrappers_required=false
+        fi
+        ;;
+      esac
+      $wrappers_required || {
+	# Replace the output file specification.
+	compile_command=`$ECHO "$compile_command" | $SED 's%@OUTPUT@%'"$output"'%g'`
+	link_command=$compile_command$compile_rpath
+
+	# We have no uninstalled library dependencies, so finalize right now.
+	exit_status=0
+	func_show_eval "$link_command" 'exit_status=$?'
+
+	if test -n "$postlink_cmds"; then
+	  func_to_tool_file "$output"
+	  postlink_cmds=`func_echo_all "$postlink_cmds" | $SED -e 's%@OUTPUT@%'"$output"'%g' -e 's%@TOOL_OUTPUT@%'"$func_to_tool_file_result"'%g'`
+	  func_execute_cmds "$postlink_cmds" 'exit $?'
+	fi
+
+	# Delete the generated files.
+	if test -f "$output_objdir/${outputname}S.$objext"; then
+	  func_show_eval '$RM "$output_objdir/${outputname}S.$objext"'
+	fi
+
+	exit $exit_status
+      }
+
+      if test -n "$compile_shlibpath$finalize_shlibpath"; then
+	compile_command="$shlibpath_var=\"$compile_shlibpath$finalize_shlibpath\$$shlibpath_var\" $compile_command"
+      fi
+      if test -n "$finalize_shlibpath"; then
+	finalize_command="$shlibpath_var=\"$finalize_shlibpath\$$shlibpath_var\" $finalize_command"
+      fi
+
+      compile_var=
+      finalize_var=
+      if test -n "$runpath_var"; then
+	if test -n "$perm_rpath"; then
+	  # We should set the runpath_var.
+	  rpath=
+	  for dir in $perm_rpath; do
+	    func_append rpath "$dir:"
+	  done
+	  compile_var="$runpath_var=\"$rpath\$$runpath_var\" "
+	fi
+	if test -n "$finalize_perm_rpath"; then
+	  # We should set the runpath_var.
+	  rpath=
+	  for dir in $finalize_perm_rpath; do
+	    func_append rpath "$dir:"
+	  done
+	  finalize_var="$runpath_var=\"$rpath\$$runpath_var\" "
+	fi
+      fi
+
+      if test yes = "$no_install"; then
+	# We don't need to create a wrapper script.
+	link_command=$compile_var$compile_command$compile_rpath
+	# Replace the output file specification.
+	link_command=`$ECHO "$link_command" | $SED 's%@OUTPUT@%'"$output"'%g'`
+	# Delete the old output file.
+	$opt_dry_run || $RM $output
+	# Link the executable and exit
+	func_show_eval "$link_command" 'exit $?'
+
+	if test -n "$postlink_cmds"; then
+	  func_to_tool_file "$output"
+	  postlink_cmds=`func_echo_all "$postlink_cmds" | $SED -e 's%@OUTPUT@%'"$output"'%g' -e 's%@TOOL_OUTPUT@%'"$func_to_tool_file_result"'%g'`
+	  func_execute_cmds "$postlink_cmds" 'exit $?'
+	fi
+
+	exit $EXIT_SUCCESS
+      fi
+
+      case $hardcode_action,$fast_install in
+        relink,*)
+	  # Fast installation is not supported
+	  link_command=$compile_var$compile_command$compile_rpath
+	  relink_command=$finalize_var$finalize_command$finalize_rpath
+
+	  func_warning "this platform does not like uninstalled shared libraries"
+	  func_warning "'$output' will be relinked during installation"
+	  ;;
+        *,yes)
+	  link_command=$finalize_var$compile_command$finalize_rpath
+	  relink_command=`$ECHO "$compile_var$compile_command$compile_rpath" | $SED 's%@OUTPUT@%\$progdir/\$file%g'`
+          ;;
+	*,no)
+	  link_command=$compile_var$compile_command$compile_rpath
+	  relink_command=$finalize_var$finalize_command$finalize_rpath
+          ;;
+	*,needless)
+	  link_command=$finalize_var$compile_command$finalize_rpath
+	  relink_command=
+          ;;
+      esac
+
+      # Replace the output file specification.
+      link_command=`$ECHO "$link_command" | $SED 's%@OUTPUT@%'"$output_objdir/$outputname"'%g'`
+
+      # Delete the old output files.
+      $opt_dry_run || $RM $output $output_objdir/$outputname $output_objdir/lt-$outputname
+
+      func_show_eval "$link_command" 'exit $?'
+
+      if test -n "$postlink_cmds"; then
+	func_to_tool_file "$output_objdir/$outputname"
+	postlink_cmds=`func_echo_all "$postlink_cmds" | $SED -e 's%@OUTPUT@%'"$output_objdir/$outputname"'%g' -e 's%@TOOL_OUTPUT@%'"$func_to_tool_file_result"'%g'`
+	func_execute_cmds "$postlink_cmds" 'exit $?'
+      fi
+
+      # Now create the wrapper script.
+      func_verbose "creating $output"
+
+      # Quote the relink command for shipping.
+      if test -n "$relink_command"; then
+	# Preserve any variables that may affect compiler behavior
+	for var in $variables_saved_for_relink; do
+	  if eval test -z \"\${$var+set}\"; then
+	    relink_command="{ test -z \"\${$var+set}\" || $lt_unset $var || { $var=; export $var; }; }; $relink_command"
+	  elif eval var_value=\$$var; test -z "$var_value"; then
+	    relink_command="$var=; export $var; $relink_command"
+	  else
+	    func_quote_for_eval "$var_value"
+	    relink_command="$var=$func_quote_for_eval_result; export $var; $relink_command"
+	  fi
+	done
+	relink_command="(cd `pwd`; $relink_command)"
+	relink_command=`$ECHO "$relink_command" | $SED "$sed_quote_subst"`
+      fi
+
+      # Only actually do things if not in dry run mode.
+      $opt_dry_run || {
+	# win32 will think the script is a binary if it has
+	# a .exe suffix, so we strip it off here.
+	case $output in
+	  *.exe) func_stripname '' '.exe' "$output"
+	         output=$func_stripname_result ;;
+	esac
+	# test for cygwin because mv fails w/o .exe extensions
+	case $host in
+	  *cygwin*)
+	    exeext=.exe
+	    func_stripname '' '.exe' "$outputname"
+	    outputname=$func_stripname_result ;;
+	  *) exeext= ;;
+	esac
+	case $host in
+	  *cygwin* | *mingw* )
+	    func_dirname_and_basename "$output" "" "."
+	    output_name=$func_basename_result
+	    output_path=$func_dirname_result
+	    cwrappersource=$output_path/$objdir/lt-$output_name.c
+	    cwrapper=$output_path/$output_name.exe
+	    $RM $cwrappersource $cwrapper
+	    trap "$RM $cwrappersource $cwrapper; exit $EXIT_FAILURE" 1 2 15
+
+	    func_emit_cwrapperexe_src > $cwrappersource
+
+	    # The wrapper executable is built using the $host compiler,
+	    # because it contains $host paths and files. If cross-
+	    # compiling, it, like the target executable, must be
+	    # executed on the $host or under an emulation environment.
+	    $opt_dry_run || {
+	      $LTCC $LTCFLAGS -o $cwrapper $cwrappersource
+	      $STRIP $cwrapper
+	    }
+
+	    # Now, create the wrapper script for func_source use:
+	    func_ltwrapper_scriptname $cwrapper
+	    $RM $func_ltwrapper_scriptname_result
+	    trap "$RM $func_ltwrapper_scriptname_result; exit $EXIT_FAILURE" 1 2 15
+	    $opt_dry_run || {
+	      # note: this script will not be executed, so do not chmod.
+	      if test "x$build" = "x$host"; then
+		$cwrapper --lt-dump-script > $func_ltwrapper_scriptname_result
+	      else
+		func_emit_wrapper no > $func_ltwrapper_scriptname_result
+	      fi
+	    }
+	  ;;
+	  * )
+	    $RM $output
+	    trap "$RM $output; exit $EXIT_FAILURE" 1 2 15
+
+	    func_emit_wrapper no > $output
+	    chmod +x $output
+	  ;;
+	esac
+      }
+      exit $EXIT_SUCCESS
+      ;;
+    esac
+
+    # See if we need to build an old-fashioned archive.
+    for oldlib in $oldlibs; do
+
+      case $build_libtool_libs in
+        convenience)
+	  oldobjs="$libobjs_save $symfileobj"
+	  addlibs=$convenience
+	  build_libtool_libs=no
+	  ;;
+	module)
+	  oldobjs=$libobjs_save
+	  addlibs=$old_convenience
+	  build_libtool_libs=no
+          ;;
+	*)
+	  oldobjs="$old_deplibs $non_pic_objects"
+	  $preload && test -f "$symfileobj" \
+	    && func_append oldobjs " $symfileobj"
+	  addlibs=$old_convenience
+	  ;;
+      esac
+
+      if test -n "$addlibs"; then
+	gentop=$output_objdir/${outputname}x
+	func_append generated " $gentop"
+
+	func_extract_archives $gentop $addlibs
+	func_append oldobjs " $func_extract_archives_result"
+      fi
+
+      # Do each command in the archive commands.
+      if test -n "$old_archive_from_new_cmds" && test yes = "$build_libtool_libs"; then
+	cmds=$old_archive_from_new_cmds
+      else
+
+	# Add any objects from preloaded convenience libraries
+	if test -n "$dlprefiles"; then
+	  gentop=$output_objdir/${outputname}x
+	  func_append generated " $gentop"
+
+	  func_extract_archives $gentop $dlprefiles
+	  func_append oldobjs " $func_extract_archives_result"
+	fi
+
+	# POSIX demands no paths to be encoded in archives.  We have
+	# to avoid creating archives with duplicate basenames if we
+	# might have to extract them afterwards, e.g., when creating a
+	# static archive out of a convenience library, or when linking
+	# the entirety of a libtool archive into another (currently
+	# not supported by libtool).
+	if (for obj in $oldobjs
+	    do
+	      func_basename "$obj"
+	      $ECHO "$func_basename_result"
+	    done | sort | sort -uc >/dev/null 2>&1); then
+	  :
+	else
+	  echo "copying selected object files to avoid basename conflicts..."
+	  gentop=$output_objdir/${outputname}x
+	  func_append generated " $gentop"
+	  func_mkdir_p "$gentop"
+	  save_oldobjs=$oldobjs
+	  oldobjs=
+	  counter=1
+	  for obj in $save_oldobjs
+	  do
+	    func_basename "$obj"
+	    objbase=$func_basename_result
+	    case " $oldobjs " in
+	    " ") oldobjs=$obj ;;
+	    *[\ /]"$objbase "*)
+	      while :; do
+		# Make sure we don't pick an alternate name that also
+		# overlaps.
+		newobj=lt$counter-$objbase
+		func_arith $counter + 1
+		counter=$func_arith_result
+		case " $oldobjs " in
+		*[\ /]"$newobj "*) ;;
+		*) if test ! -f "$gentop/$newobj"; then break; fi ;;
+		esac
+	      done
+	      func_show_eval "ln $obj $gentop/$newobj || cp $obj $gentop/$newobj"
+	      func_append oldobjs " $gentop/$newobj"
+	      ;;
+	    *) func_append oldobjs " $obj" ;;
+	    esac
+	  done
+	fi
+	func_to_tool_file "$oldlib" func_convert_file_msys_to_w32
+	tool_oldlib=$func_to_tool_file_result
+	eval cmds=\"$old_archive_cmds\"
+
+	func_len " $cmds"
+	len=$func_len_result
+	if test "$len" -lt "$max_cmd_len" || test "$max_cmd_len" -le -1; then
+	  cmds=$old_archive_cmds
+	elif test -n "$archiver_list_spec"; then
+	  func_verbose "using command file archive linking..."
+	  for obj in $oldobjs
+	  do
+	    func_to_tool_file "$obj"
+	    $ECHO "$func_to_tool_file_result"
+	  done > $output_objdir/$libname.libcmd
+	  func_to_tool_file "$output_objdir/$libname.libcmd"
+	  oldobjs=" $archiver_list_spec$func_to_tool_file_result"
+	  cmds=$old_archive_cmds
+	else
+	  # the command line is too long to link in one step, link in parts
+	  func_verbose "using piecewise archive linking..."
+	  save_RANLIB=$RANLIB
+	  RANLIB=:
+	  objlist=
+	  concat_cmds=
+	  save_oldobjs=$oldobjs
+	  oldobjs=
+	  # Is there a better way of finding the last object in the list?
+	  for obj in $save_oldobjs
+	  do
+	    last_oldobj=$obj
+	  done
+	  eval test_cmds=\"$old_archive_cmds\"
+	  func_len " $test_cmds"
+	  len0=$func_len_result
+	  len=$len0
+	  for obj in $save_oldobjs
+	  do
+	    func_len " $obj"
+	    func_arith $len + $func_len_result
+	    len=$func_arith_result
+	    func_append objlist " $obj"
+	    if test "$len" -lt "$max_cmd_len"; then
+	      :
+	    else
+	      # the above command should be used before it gets too long
+	      oldobjs=$objlist
+	      if test "$obj" = "$last_oldobj"; then
+		RANLIB=$save_RANLIB
+	      fi
+	      test -z "$concat_cmds" || concat_cmds=$concat_cmds~
+	      eval concat_cmds=\"\$concat_cmds$old_archive_cmds\"
+	      objlist=
+	      len=$len0
+	    fi
+	  done
+	  RANLIB=$save_RANLIB
+	  oldobjs=$objlist
+	  if test -z "$oldobjs"; then
+	    eval cmds=\"\$concat_cmds\"
+	  else
+	    eval cmds=\"\$concat_cmds~\$old_archive_cmds\"
+	  fi
+	fi
+      fi
+      func_execute_cmds "$cmds" 'exit $?'
+    done
+
+    test -n "$generated" && \
+      func_show_eval "${RM}r$generated"
+
+    # Now create the libtool archive.
+    case $output in
+    *.la)
+      old_library=
+      test yes = "$build_old_libs" && old_library=$libname.$libext
+      func_verbose "creating $output"
+
+      # Preserve any variables that may affect compiler behavior
+      for var in $variables_saved_for_relink; do
+	if eval test -z \"\${$var+set}\"; then
+	  relink_command="{ test -z \"\${$var+set}\" || $lt_unset $var || { $var=; export $var; }; }; $relink_command"
+	elif eval var_value=\$$var; test -z "$var_value"; then
+	  relink_command="$var=; export $var; $relink_command"
+	else
+	  func_quote_for_eval "$var_value"
+	  relink_command="$var=$func_quote_for_eval_result; export $var; $relink_command"
+	fi
+      done
+      # Quote the link command for shipping.
+      relink_command="(cd `pwd`; $SHELL \"$progpath\" $preserve_args --mode=relink $libtool_args @inst_prefix_dir@)"
+      relink_command=`$ECHO "$relink_command" | $SED "$sed_quote_subst"`
+      if test yes = "$hardcode_automatic"; then
+	relink_command=
+      fi
+
+      # Only create the output if not a dry run.
+      $opt_dry_run || {
+	for installed in no yes; do
+	  if test yes = "$installed"; then
+	    if test -z "$install_libdir"; then
+	      break
+	    fi
+	    output=$output_objdir/${outputname}i
+	    # Replace all uninstalled libtool libraries with the installed ones
+	    newdependency_libs=
+	    for deplib in $dependency_libs; do
+	      case $deplib in
+	      *.la)
+		func_basename "$deplib"
+		name=$func_basename_result
+		func_resolve_sysroot "$deplib"
+		eval libdir=`$SED -n -e 's/^libdir=\(.*\)$/\1/p' $func_resolve_sysroot_result`
+		test -z "$libdir" && \
+		  func_fatal_error "'$deplib' is not a valid libtool archive"
+		func_append newdependency_libs " ${lt_sysroot:+=}$libdir/$name"
+		;;
+	      -L*)
+		func_stripname -L '' "$deplib"
+		func_replace_sysroot "$func_stripname_result"
+		func_append newdependency_libs " -L$func_replace_sysroot_result"
+		;;
+	      -R*)
+		func_stripname -R '' "$deplib"
+		func_replace_sysroot "$func_stripname_result"
+		func_append newdependency_libs " -R$func_replace_sysroot_result"
+		;;
+	      *) func_append newdependency_libs " $deplib" ;;
+	      esac
+	    done
+	    dependency_libs=$newdependency_libs
+	    newdlfiles=
+
+	    for lib in $dlfiles; do
+	      case $lib in
+	      *.la)
+	        func_basename "$lib"
+		name=$func_basename_result
+		eval libdir=`$SED -n -e 's/^libdir=\(.*\)$/\1/p' $lib`
+		test -z "$libdir" && \
+		  func_fatal_error "'$lib' is not a valid libtool archive"
+		func_append newdlfiles " ${lt_sysroot:+=}$libdir/$name"
+		;;
+	      *) func_append newdlfiles " $lib" ;;
+	      esac
+	    done
+	    dlfiles=$newdlfiles
+	    newdlprefiles=
+	    for lib in $dlprefiles; do
+	      case $lib in
+	      *.la)
+		# Only pass preopened files to the pseudo-archive (for
+		# eventual linking with the app. that links it) if we
+		# didn't already link the preopened objects directly into
+		# the library:
+		func_basename "$lib"
+		name=$func_basename_result
+		eval libdir=`$SED -n -e 's/^libdir=\(.*\)$/\1/p' $lib`
+		test -z "$libdir" && \
+		  func_fatal_error "'$lib' is not a valid libtool archive"
+		func_append newdlprefiles " ${lt_sysroot:+=}$libdir/$name"
+		;;
+	      esac
+	    done
+	    dlprefiles=$newdlprefiles
+	  else
+	    newdlfiles=
+	    for lib in $dlfiles; do
+	      case $lib in
+		[\\/]* | [A-Za-z]:[\\/]*) abs=$lib ;;
+		*) abs=`pwd`"/$lib" ;;
+	      esac
+	      func_append newdlfiles " $abs"
+	    done
+	    dlfiles=$newdlfiles
+	    newdlprefiles=
+	    for lib in $dlprefiles; do
+	      case $lib in
+		[\\/]* | [A-Za-z]:[\\/]*) abs=$lib ;;
+		*) abs=`pwd`"/$lib" ;;
+	      esac
+	      func_append newdlprefiles " $abs"
+	    done
+	    dlprefiles=$newdlprefiles
+	  fi
+	  $RM $output
+	  # place dlname in correct position for cygwin
+	  # In fact, it would be nice if we could use this code for all target
+	  # systems that can't hard-code library paths into their executables
+	  # and that have no shared library path variable independent of PATH,
+	  # but it turns out we can't easily determine that from inspecting
+	  # libtool variables, so we have to hard-code the OSs to which it
+	  # applies here; at the moment, that means platforms that use the PE
+	  # object format with DLL files.  See the long comment at the top of
+	  # tests/bindir.at for full details.
+	  tdlname=$dlname
+	  case $host,$output,$installed,$module,$dlname in
+	    *cygwin*,*lai,yes,no,*.dll | *mingw*,*lai,yes,no,*.dll | *cegcc*,*lai,yes,no,*.dll)
+	      # If a -bindir argument was supplied, place the dll there.
+	      if test -n "$bindir"; then
+		func_relative_path "$install_libdir" "$bindir"
+		tdlname=$func_relative_path_result/$dlname
+	      else
+		# Otherwise fall back on heuristic.
+		tdlname=../bin/$dlname
+	      fi
+	      ;;
+	  esac
+	  $ECHO > $output "\
+# $outputname - a libtool library file
+# Generated by $PROGRAM (GNU $PACKAGE) $VERSION
+#
+# Please DO NOT delete this file!
+# It is necessary for linking the library.
+
+# The name that we can dlopen(3).
+dlname='$tdlname'
+
+# Names of this library.
+library_names='$library_names'
+
+# The name of the static archive.
+old_library='$old_library'
+
+# Linker flags that cannot go in dependency_libs.
+inherited_linker_flags='$new_inherited_linker_flags'
+
+# Libraries that this one depends upon.
+dependency_libs='$dependency_libs'
+
+# Names of additional weak libraries provided by this library
+weak_library_names='$weak_libs'
+
+# Version information for $libname.
+current=$current
+age=$age
+revision=$revision
+
+# Is this an already installed library?
+installed=$installed
+
+# Should we warn about portability when linking against -modules?
+shouldnotlink=$module
+
+# Files to dlopen/dlpreopen
+dlopen='$dlfiles'
+dlpreopen='$dlprefiles'
+
+# Directory that this library needs to be installed in:
+libdir='$install_libdir'"
+	  if test no,yes = "$installed,$need_relink"; then
+	    $ECHO >> $output "\
+relink_command=\"$relink_command\""
+	  fi
+	done
+      }
+
+      # Do a symbolic link so that the libtool archive can be found in
+      # LD_LIBRARY_PATH before the program is installed.
+      func_show_eval '( cd "$output_objdir" && $RM "$outputname" && $LN_S "../$outputname" "$outputname" )' 'exit $?'
+      ;;
+    esac
+    exit $EXIT_SUCCESS
+}
+
+if test link = "$opt_mode" || test relink = "$opt_mode"; then
+  func_mode_link ${1+"$@"}
+fi
+
+
+# func_mode_uninstall arg...
+func_mode_uninstall ()
+{
+    $debug_cmd
+
+    RM=$nonopt
+    files=
+    rmforce=false
+    exit_status=0
+
+    # This variable tells wrapper scripts just to set variables rather
+    # than running their programs.
+    libtool_install_magic=$magic
+
+    for arg
+    do
+      case $arg in
+      -f) func_append RM " $arg"; rmforce=: ;;
+      -*) func_append RM " $arg" ;;
+      *) func_append files " $arg" ;;
+      esac
+    done
+
+    test -z "$RM" && \
+      func_fatal_help "you must specify an RM program"
+
+    rmdirs=
+
+    for file in $files; do
+      func_dirname "$file" "" "."
+      dir=$func_dirname_result
+      if test . = "$dir"; then
+	odir=$objdir
+      else
+	odir=$dir/$objdir
+      fi
+      func_basename "$file"
+      name=$func_basename_result
+      test uninstall = "$opt_mode" && odir=$dir
+
+      # Remember odir for removal later, being careful to avoid duplicates
+      if test clean = "$opt_mode"; then
+	case " $rmdirs " in
+	  *" $odir "*) ;;
+	  *) func_append rmdirs " $odir" ;;
+	esac
+      fi
+
+      # Don't error if the file doesn't exist and rm -f was used.
+      if { test -L "$file"; } >/dev/null 2>&1 ||
+	 { test -h "$file"; } >/dev/null 2>&1 ||
+	 test -f "$file"; then
+	:
+      elif test -d "$file"; then
+	exit_status=1
+	continue
+      elif $rmforce; then
+	continue
+      fi
+
+      rmfiles=$file
+
+      case $name in
+      *.la)
+	# Possibly a libtool archive, so verify it.
+	if func_lalib_p "$file"; then
+	  func_source $dir/$name
+
+	  # Delete the libtool libraries and symlinks.
+	  for n in $library_names; do
+	    func_append rmfiles " $odir/$n"
+	  done
+	  test -n "$old_library" && func_append rmfiles " $odir/$old_library"
+
+	  case $opt_mode in
+	  clean)
+	    case " $library_names " in
+	    *" $dlname "*) ;;
+	    *) test -n "$dlname" && func_append rmfiles " $odir/$dlname" ;;
+	    esac
+	    test -n "$libdir" && func_append rmfiles " $odir/$name $odir/${name}i"
+	    ;;
+	  uninstall)
+	    if test -n "$library_names"; then
+	      # Do each command in the postuninstall commands.
+	      func_execute_cmds "$postuninstall_cmds" '$rmforce || exit_status=1'
+	    fi
+
+	    if test -n "$old_library"; then
+	      # Do each command in the old_postuninstall commands.
+	      func_execute_cmds "$old_postuninstall_cmds" '$rmforce || exit_status=1'
+	    fi
+	    # FIXME: should reinstall the best remaining shared library.
+	    ;;
+	  esac
+	fi
+	;;
+
+      *.lo)
+	# Possibly a libtool object, so verify it.
+	if func_lalib_p "$file"; then
+
+	  # Read the .lo file
+	  func_source $dir/$name
+
+	  # Add PIC object to the list of files to remove.
+	  if test -n "$pic_object" && test none != "$pic_object"; then
+	    func_append rmfiles " $dir/$pic_object"
+	  fi
+
+	  # Add non-PIC object to the list of files to remove.
+	  if test -n "$non_pic_object" && test none != "$non_pic_object"; then
+	    func_append rmfiles " $dir/$non_pic_object"
+	  fi
+	fi
+	;;
+
+      *)
+	if test clean = "$opt_mode"; then
+	  noexename=$name
+	  case $file in
+	  *.exe)
+	    func_stripname '' '.exe' "$file"
+	    file=$func_stripname_result
+	    func_stripname '' '.exe' "$name"
+	    noexename=$func_stripname_result
+	    # $file with .exe has already been added to rmfiles,
+	    # add $file without .exe
+	    func_append rmfiles " $file"
+	    ;;
+	  esac
+	  # Do a test to see if this is a libtool program.
+	  if func_ltwrapper_p "$file"; then
+	    if func_ltwrapper_executable_p "$file"; then
+	      func_ltwrapper_scriptname "$file"
+	      relink_command=
+	      func_source $func_ltwrapper_scriptname_result
+	      func_append rmfiles " $func_ltwrapper_scriptname_result"
+	    else
+	      relink_command=
+	      func_source $dir/$noexename
+	    fi
+
+	    # note $name still contains .exe if it was in $file originally
+	    # as does the version of $file that was added into $rmfiles
+	    func_append rmfiles " $odir/$name $odir/${name}S.$objext"
+	    if test yes = "$fast_install" && test -n "$relink_command"; then
+	      func_append rmfiles " $odir/lt-$name"
+	    fi
+	    if test "X$noexename" != "X$name"; then
+	      func_append rmfiles " $odir/lt-$noexename.c"
+	    fi
+	  fi
+	fi
+	;;
+      esac
+      func_show_eval "$RM $rmfiles" 'exit_status=1'
+    done
+
+    # Try to remove the $objdir's in the directories where we deleted files
+    for dir in $rmdirs; do
+      if test -d "$dir"; then
+	func_show_eval "rmdir $dir >/dev/null 2>&1"
+      fi
+    done
+
+    exit $exit_status
+}
+
+if test uninstall = "$opt_mode" || test clean = "$opt_mode"; then
+  func_mode_uninstall ${1+"$@"}
+fi
+
+test -z "$opt_mode" && {
+  help=$generic_help
+  func_fatal_help "you must specify a MODE"
+}
+
+test -z "$exec_cmd" && \
+  func_fatal_help "invalid operation mode '$opt_mode'"
+
+if test -n "$exec_cmd"; then
+  eval exec "$exec_cmd"
+  exit $EXIT_FAILURE
+fi
+
+exit $exit_status
+
+
+# The TAGs below are defined such that we never get into a situation
+# where we disable both kinds of libraries.  Given conflicting
+# choices, we go for a static library, that is the most portable,
+# since we can't tell whether shared libraries were disabled because
+# the user asked for that or because the platform doesn't support
+# them.  This is particularly important on AIX, because we don't
+# support having both static and shared libraries enabled at the same
+# time on that platform, so we default to a shared-only configuration.
+# If a disable-shared tag is given, we'll fallback to a static-only
+# configuration.  But we'll never go from static-only to shared-only.
+
+# ### BEGIN LIBTOOL TAG CONFIG: disable-shared
+build_libtool_libs=no
+build_old_libs=yes
+# ### END LIBTOOL TAG CONFIG: disable-shared
+
+# ### BEGIN LIBTOOL TAG CONFIG: disable-static
+build_old_libs=`case $build_libtool_libs in yes) echo no;; *) echo yes;; esac`
+# ### END LIBTOOL TAG CONFIG: disable-static
+
+# Local Variables:
+# mode:shell-script
+# sh-indentation:2
+# End:
diff --git a/m4/.keep b/m4/.keep
deleted file mode 100644
index e69de29..0000000
--- a/m4/.keep
+++ /dev/null
diff --git a/m4/libtool.m4 b/m4/libtool.m4
new file mode 100644
index 0000000..a644432
--- /dev/null
+++ b/m4/libtool.m4
@@ -0,0 +1,8372 @@
+# libtool.m4 - Configure libtool for the host system. -*-Autoconf-*-
+#
+#   Copyright (C) 1996-2001, 2003-2015 Free Software Foundation, Inc.
+#   Written by Gordon Matzigkeit, 1996
+#
+# This file is free software; the Free Software Foundation gives
+# unlimited permission to copy and/or distribute it, with or without
+# modifications, as long as this notice is preserved.
+
+m4_define([_LT_COPYING], [dnl
+# Copyright (C) 2014 Free Software Foundation, Inc.
+# This is free software; see the source for copying conditions.  There is NO
+# warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
+
+# GNU Libtool is free software; you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation; either version 2 of of the License, or
+# (at your option) any later version.
+#
+# As a special exception to the GNU General Public License, if you
+# distribute this file as part of a program or library that is built
+# using GNU Libtool, you may include this file under the  same
+# distribution terms that you use for the rest of that program.
+#
+# GNU Libtool is distributed in the hope that it will be useful, but
+# WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program.  If not, see <http://www.gnu.org/licenses/>.
+])
+
+# serial 58 LT_INIT
+
+
+# LT_PREREQ(VERSION)
+# ------------------
+# Complain and exit if this libtool version is less that VERSION.
+m4_defun([LT_PREREQ],
+[m4_if(m4_version_compare(m4_defn([LT_PACKAGE_VERSION]), [$1]), -1,
+       [m4_default([$3],
+		   [m4_fatal([Libtool version $1 or higher is required],
+		             63)])],
+       [$2])])
+
+
+# _LT_CHECK_BUILDDIR
+# ------------------
+# Complain if the absolute build directory name contains unusual characters
+m4_defun([_LT_CHECK_BUILDDIR],
+[case `pwd` in
+  *\ * | *\	*)
+    AC_MSG_WARN([Libtool does not cope well with whitespace in `pwd`]) ;;
+esac
+])
+
+
+# LT_INIT([OPTIONS])
+# ------------------
+AC_DEFUN([LT_INIT],
+[AC_PREREQ([2.62])dnl We use AC_PATH_PROGS_FEATURE_CHECK
+AC_REQUIRE([AC_CONFIG_AUX_DIR_DEFAULT])dnl
+AC_BEFORE([$0], [LT_LANG])dnl
+AC_BEFORE([$0], [LT_OUTPUT])dnl
+AC_BEFORE([$0], [LTDL_INIT])dnl
+m4_require([_LT_CHECK_BUILDDIR])dnl
+
+dnl Autoconf doesn't catch unexpanded LT_ macros by default:
+m4_pattern_forbid([^_?LT_[A-Z_]+$])dnl
+m4_pattern_allow([^(_LT_EOF|LT_DLGLOBAL|LT_DLLAZY_OR_NOW|LT_MULTI_MODULE)$])dnl
+dnl aclocal doesn't pull ltoptions.m4, ltsugar.m4, or ltversion.m4
+dnl unless we require an AC_DEFUNed macro:
+AC_REQUIRE([LTOPTIONS_VERSION])dnl
+AC_REQUIRE([LTSUGAR_VERSION])dnl
+AC_REQUIRE([LTVERSION_VERSION])dnl
+AC_REQUIRE([LTOBSOLETE_VERSION])dnl
+m4_require([_LT_PROG_LTMAIN])dnl
+
+_LT_SHELL_INIT([SHELL=${CONFIG_SHELL-/bin/sh}])
+
+dnl Parse OPTIONS
+_LT_SET_OPTIONS([$0], [$1])
+
+# This can be used to rebuild libtool when needed
+LIBTOOL_DEPS=$ltmain
+
+# Always use our own libtool.
+LIBTOOL='$(SHELL) $(top_builddir)/libtool'
+AC_SUBST(LIBTOOL)dnl
+
+_LT_SETUP
+
+# Only expand once:
+m4_define([LT_INIT])
+])# LT_INIT
+
+# Old names:
+AU_ALIAS([AC_PROG_LIBTOOL], [LT_INIT])
+AU_ALIAS([AM_PROG_LIBTOOL], [LT_INIT])
+dnl aclocal-1.4 backwards compatibility:
+dnl AC_DEFUN([AC_PROG_LIBTOOL], [])
+dnl AC_DEFUN([AM_PROG_LIBTOOL], [])
+
+
+# _LT_PREPARE_CC_BASENAME
+# -----------------------
+m4_defun([_LT_PREPARE_CC_BASENAME], [
+# Calculate cc_basename.  Skip known compiler wrappers and cross-prefix.
+func_cc_basename ()
+{
+    for cc_temp in @S|@*""; do
+      case $cc_temp in
+        compile | *[[\\/]]compile | ccache | *[[\\/]]ccache ) ;;
+        distcc | *[[\\/]]distcc | purify | *[[\\/]]purify ) ;;
+        \-*) ;;
+        *) break;;
+      esac
+    done
+    func_cc_basename_result=`$ECHO "$cc_temp" | $SED "s%.*/%%; s%^$host_alias-%%"`
+}
+])# _LT_PREPARE_CC_BASENAME
+
+
+# _LT_CC_BASENAME(CC)
+# -------------------
+# It would be clearer to call AC_REQUIREs from _LT_PREPARE_CC_BASENAME,
+# but that macro is also expanded into generated libtool script, which
+# arranges for $SED and $ECHO to be set by different means.
+m4_defun([_LT_CC_BASENAME],
+[m4_require([_LT_PREPARE_CC_BASENAME])dnl
+AC_REQUIRE([_LT_DECL_SED])dnl
+AC_REQUIRE([_LT_PROG_ECHO_BACKSLASH])dnl
+func_cc_basename $1
+cc_basename=$func_cc_basename_result
+])
+
+
+# _LT_FILEUTILS_DEFAULTS
+# ----------------------
+# It is okay to use these file commands and assume they have been set
+# sensibly after 'm4_require([_LT_FILEUTILS_DEFAULTS])'.
+m4_defun([_LT_FILEUTILS_DEFAULTS],
+[: ${CP="cp -f"}
+: ${MV="mv -f"}
+: ${RM="rm -f"}
+])# _LT_FILEUTILS_DEFAULTS
+
+
+# _LT_SETUP
+# ---------
+m4_defun([_LT_SETUP],
+[AC_REQUIRE([AC_CANONICAL_HOST])dnl
+AC_REQUIRE([AC_CANONICAL_BUILD])dnl
+AC_REQUIRE([_LT_PREPARE_SED_QUOTE_VARS])dnl
+AC_REQUIRE([_LT_PROG_ECHO_BACKSLASH])dnl
+
+_LT_DECL([], [PATH_SEPARATOR], [1], [The PATH separator for the build system])dnl
+dnl
+_LT_DECL([], [host_alias], [0], [The host system])dnl
+_LT_DECL([], [host], [0])dnl
+_LT_DECL([], [host_os], [0])dnl
+dnl
+_LT_DECL([], [build_alias], [0], [The build system])dnl
+_LT_DECL([], [build], [0])dnl
+_LT_DECL([], [build_os], [0])dnl
+dnl
+AC_REQUIRE([AC_PROG_CC])dnl
+AC_REQUIRE([LT_PATH_LD])dnl
+AC_REQUIRE([LT_PATH_NM])dnl
+dnl
+AC_REQUIRE([AC_PROG_LN_S])dnl
+test -z "$LN_S" && LN_S="ln -s"
+_LT_DECL([], [LN_S], [1], [Whether we need soft or hard links])dnl
+dnl
+AC_REQUIRE([LT_CMD_MAX_LEN])dnl
+_LT_DECL([objext], [ac_objext], [0], [Object file suffix (normally "o")])dnl
+_LT_DECL([], [exeext], [0], [Executable file suffix (normally "")])dnl
+dnl
+m4_require([_LT_FILEUTILS_DEFAULTS])dnl
+m4_require([_LT_CHECK_SHELL_FEATURES])dnl
+m4_require([_LT_PATH_CONVERSION_FUNCTIONS])dnl
+m4_require([_LT_CMD_RELOAD])dnl
+m4_require([_LT_CHECK_MAGIC_METHOD])dnl
+m4_require([_LT_CHECK_SHAREDLIB_FROM_LINKLIB])dnl
+m4_require([_LT_CMD_OLD_ARCHIVE])dnl
+m4_require([_LT_CMD_GLOBAL_SYMBOLS])dnl
+m4_require([_LT_WITH_SYSROOT])dnl
+m4_require([_LT_CMD_TRUNCATE])dnl
+
+_LT_CONFIG_LIBTOOL_INIT([
+# See if we are running on zsh, and set the options that allow our
+# commands through without removal of \ escapes INIT.
+if test -n "\${ZSH_VERSION+set}"; then
+   setopt NO_GLOB_SUBST
+fi
+])
+if test -n "${ZSH_VERSION+set}"; then
+   setopt NO_GLOB_SUBST
+fi
+
+_LT_CHECK_OBJDIR
+
+m4_require([_LT_TAG_COMPILER])dnl
+
+case $host_os in
+aix3*)
+  # AIX sometimes has problems with the GCC collect2 program.  For some
+  # reason, if we set the COLLECT_NAMES environment variable, the problems
+  # vanish in a puff of smoke.
+  if test set != "${COLLECT_NAMES+set}"; then
+    COLLECT_NAMES=
+    export COLLECT_NAMES
+  fi
+  ;;
+esac
+
+# Global variables:
+ofile=libtool
+can_build_shared=yes
+
+# All known linkers require a '.a' archive for static linking (except MSVC,
+# which needs '.lib').
+libext=a
+
+with_gnu_ld=$lt_cv_prog_gnu_ld
+
+old_CC=$CC
+old_CFLAGS=$CFLAGS
+
+# Set sane defaults for various variables
+test -z "$CC" && CC=cc
+test -z "$LTCC" && LTCC=$CC
+test -z "$LTCFLAGS" && LTCFLAGS=$CFLAGS
+test -z "$LD" && LD=ld
+test -z "$ac_objext" && ac_objext=o
+
+_LT_CC_BASENAME([$compiler])
+
+# Only perform the check for file, if the check method requires it
+test -z "$MAGIC_CMD" && MAGIC_CMD=file
+case $deplibs_check_method in
+file_magic*)
+  if test "$file_magic_cmd" = '$MAGIC_CMD'; then
+    _LT_PATH_MAGIC
+  fi
+  ;;
+esac
+
+# Use C for the default configuration in the libtool script
+LT_SUPPORTED_TAG([CC])
+_LT_LANG_C_CONFIG
+_LT_LANG_DEFAULT_CONFIG
+_LT_CONFIG_COMMANDS
+])# _LT_SETUP
+
+
+# _LT_PREPARE_SED_QUOTE_VARS
+# --------------------------
+# Define a few sed substitution that help us do robust quoting.
+m4_defun([_LT_PREPARE_SED_QUOTE_VARS],
+[# Backslashify metacharacters that are still active within
+# double-quoted strings.
+sed_quote_subst='s/\([["`$\\]]\)/\\\1/g'
+
+# Same as above, but do not quote variable references.
+double_quote_subst='s/\([["`\\]]\)/\\\1/g'
+
+# Sed substitution to delay expansion of an escaped shell variable in a
+# double_quote_subst'ed string.
+delay_variable_subst='s/\\\\\\\\\\\$/\\\\\\$/g'
+
+# Sed substitution to delay expansion of an escaped single quote.
+delay_single_quote_subst='s/'\''/'\'\\\\\\\'\''/g'
+
+# Sed substitution to avoid accidental globbing in evaled expressions
+no_glob_subst='s/\*/\\\*/g'
+])
+
+# _LT_PROG_LTMAIN
+# ---------------
+# Note that this code is called both from 'configure', and 'config.status'
+# now that we use AC_CONFIG_COMMANDS to generate libtool.  Notably,
+# 'config.status' has no value for ac_aux_dir unless we are using Automake,
+# so we pass a copy along to make sure it has a sensible value anyway.
+m4_defun([_LT_PROG_LTMAIN],
+[m4_ifdef([AC_REQUIRE_AUX_FILE], [AC_REQUIRE_AUX_FILE([ltmain.sh])])dnl
+_LT_CONFIG_LIBTOOL_INIT([ac_aux_dir='$ac_aux_dir'])
+ltmain=$ac_aux_dir/ltmain.sh
+])# _LT_PROG_LTMAIN
+
+
+## ------------------------------------- ##
+## Accumulate code for creating libtool. ##
+## ------------------------------------- ##
+
+# So that we can recreate a full libtool script including additional
+# tags, we accumulate the chunks of code to send to AC_CONFIG_COMMANDS
+# in macros and then make a single call at the end using the 'libtool'
+# label.
+
+
+# _LT_CONFIG_LIBTOOL_INIT([INIT-COMMANDS])
+# ----------------------------------------
+# Register INIT-COMMANDS to be passed to AC_CONFIG_COMMANDS later.
+m4_define([_LT_CONFIG_LIBTOOL_INIT],
+[m4_ifval([$1],
+          [m4_append([_LT_OUTPUT_LIBTOOL_INIT],
+                     [$1
+])])])
+
+# Initialize.
+m4_define([_LT_OUTPUT_LIBTOOL_INIT])
+
+
+# _LT_CONFIG_LIBTOOL([COMMANDS])
+# ------------------------------
+# Register COMMANDS to be passed to AC_CONFIG_COMMANDS later.
+m4_define([_LT_CONFIG_LIBTOOL],
+[m4_ifval([$1],
+          [m4_append([_LT_OUTPUT_LIBTOOL_COMMANDS],
+                     [$1
+])])])
+
+# Initialize.
+m4_define([_LT_OUTPUT_LIBTOOL_COMMANDS])
+
+
+# _LT_CONFIG_SAVE_COMMANDS([COMMANDS], [INIT_COMMANDS])
+# -----------------------------------------------------
+m4_defun([_LT_CONFIG_SAVE_COMMANDS],
+[_LT_CONFIG_LIBTOOL([$1])
+_LT_CONFIG_LIBTOOL_INIT([$2])
+])
+
+
+# _LT_FORMAT_COMMENT([COMMENT])
+# -----------------------------
+# Add leading comment marks to the start of each line, and a trailing
+# full-stop to the whole comment if one is not present already.
+m4_define([_LT_FORMAT_COMMENT],
+[m4_ifval([$1], [
+m4_bpatsubst([m4_bpatsubst([$1], [^ *], [# ])],
+              [['`$\]], [\\\&])]m4_bmatch([$1], [[!?.]$], [], [.])
+)])
+
+
+
+## ------------------------ ##
+## FIXME: Eliminate VARNAME ##
+## ------------------------ ##
+
+
+# _LT_DECL([CONFIGNAME], VARNAME, VALUE, [DESCRIPTION], [IS-TAGGED?])
+# -------------------------------------------------------------------
+# CONFIGNAME is the name given to the value in the libtool script.
+# VARNAME is the (base) name used in the configure script.
+# VALUE may be 0, 1 or 2 for a computed quote escaped value based on
+# VARNAME.  Any other value will be used directly.
+m4_define([_LT_DECL],
+[lt_if_append_uniq([lt_decl_varnames], [$2], [, ],
+    [lt_dict_add_subkey([lt_decl_dict], [$2], [libtool_name],
+	[m4_ifval([$1], [$1], [$2])])
+    lt_dict_add_subkey([lt_decl_dict], [$2], [value], [$3])
+    m4_ifval([$4],
+	[lt_dict_add_subkey([lt_decl_dict], [$2], [description], [$4])])
+    lt_dict_add_subkey([lt_decl_dict], [$2],
+	[tagged?], [m4_ifval([$5], [yes], [no])])])
+])
+
+
+# _LT_TAGDECL([CONFIGNAME], VARNAME, VALUE, [DESCRIPTION])
+# --------------------------------------------------------
+m4_define([_LT_TAGDECL], [_LT_DECL([$1], [$2], [$3], [$4], [yes])])
+
+
+# lt_decl_tag_varnames([SEPARATOR], [VARNAME1...])
+# ------------------------------------------------
+m4_define([lt_decl_tag_varnames],
+[_lt_decl_filter([tagged?], [yes], $@)])
+
+
+# _lt_decl_filter(SUBKEY, VALUE, [SEPARATOR], [VARNAME1..])
+# ---------------------------------------------------------
+m4_define([_lt_decl_filter],
+[m4_case([$#],
+  [0], [m4_fatal([$0: too few arguments: $#])],
+  [1], [m4_fatal([$0: too few arguments: $#: $1])],
+  [2], [lt_dict_filter([lt_decl_dict], [$1], [$2], [], lt_decl_varnames)],
+  [3], [lt_dict_filter([lt_decl_dict], [$1], [$2], [$3], lt_decl_varnames)],
+  [lt_dict_filter([lt_decl_dict], $@)])[]dnl
+])
+
+
+# lt_decl_quote_varnames([SEPARATOR], [VARNAME1...])
+# --------------------------------------------------
+m4_define([lt_decl_quote_varnames],
+[_lt_decl_filter([value], [1], $@)])
+
+
+# lt_decl_dquote_varnames([SEPARATOR], [VARNAME1...])
+# ---------------------------------------------------
+m4_define([lt_decl_dquote_varnames],
+[_lt_decl_filter([value], [2], $@)])
+
+
+# lt_decl_varnames_tagged([SEPARATOR], [VARNAME1...])
+# ---------------------------------------------------
+m4_define([lt_decl_varnames_tagged],
+[m4_assert([$# <= 2])dnl
+_$0(m4_quote(m4_default([$1], [[, ]])),
+    m4_ifval([$2], [[$2]], [m4_dquote(lt_decl_tag_varnames)]),
+    m4_split(m4_normalize(m4_quote(_LT_TAGS)), [ ]))])
+m4_define([_lt_decl_varnames_tagged],
+[m4_ifval([$3], [lt_combine([$1], [$2], [_], $3)])])
+
+
+# lt_decl_all_varnames([SEPARATOR], [VARNAME1...])
+# ------------------------------------------------
+m4_define([lt_decl_all_varnames],
+[_$0(m4_quote(m4_default([$1], [[, ]])),
+     m4_if([$2], [],
+	   m4_quote(lt_decl_varnames),
+	m4_quote(m4_shift($@))))[]dnl
+])
+m4_define([_lt_decl_all_varnames],
+[lt_join($@, lt_decl_varnames_tagged([$1],
+			lt_decl_tag_varnames([[, ]], m4_shift($@))))dnl
+])
+
+
+# _LT_CONFIG_STATUS_DECLARE([VARNAME])
+# ------------------------------------
+# Quote a variable value, and forward it to 'config.status' so that its
+# declaration there will have the same value as in 'configure'.  VARNAME
+# must have a single quote delimited value for this to work.
+m4_define([_LT_CONFIG_STATUS_DECLARE],
+[$1='`$ECHO "$][$1" | $SED "$delay_single_quote_subst"`'])
+
+
+# _LT_CONFIG_STATUS_DECLARATIONS
+# ------------------------------
+# We delimit libtool config variables with single quotes, so when
+# we write them to config.status, we have to be sure to quote all
+# embedded single quotes properly.  In configure, this macro expands
+# each variable declared with _LT_DECL (and _LT_TAGDECL) into:
+#
+#    <var>='`$ECHO "$<var>" | $SED "$delay_single_quote_subst"`'
+m4_defun([_LT_CONFIG_STATUS_DECLARATIONS],
+[m4_foreach([_lt_var], m4_quote(lt_decl_all_varnames),
+    [m4_n([_LT_CONFIG_STATUS_DECLARE(_lt_var)])])])
+
+
+# _LT_LIBTOOL_TAGS
+# ----------------
+# Output comment and list of tags supported by the script
+m4_defun([_LT_LIBTOOL_TAGS],
+[_LT_FORMAT_COMMENT([The names of the tagged configurations supported by this script])dnl
+available_tags='_LT_TAGS'dnl
+])
+
+
+# _LT_LIBTOOL_DECLARE(VARNAME, [TAG])
+# -----------------------------------
+# Extract the dictionary values for VARNAME (optionally with TAG) and
+# expand to a commented shell variable setting:
+#
+#    # Some comment about what VAR is for.
+#    visible_name=$lt_internal_name
+m4_define([_LT_LIBTOOL_DECLARE],
+[_LT_FORMAT_COMMENT(m4_quote(lt_dict_fetch([lt_decl_dict], [$1],
+					   [description])))[]dnl
+m4_pushdef([_libtool_name],
+    m4_quote(lt_dict_fetch([lt_decl_dict], [$1], [libtool_name])))[]dnl
+m4_case(m4_quote(lt_dict_fetch([lt_decl_dict], [$1], [value])),
+    [0], [_libtool_name=[$]$1],
+    [1], [_libtool_name=$lt_[]$1],
+    [2], [_libtool_name=$lt_[]$1],
+    [_libtool_name=lt_dict_fetch([lt_decl_dict], [$1], [value])])[]dnl
+m4_ifval([$2], [_$2])[]m4_popdef([_libtool_name])[]dnl
+])
+
+
+# _LT_LIBTOOL_CONFIG_VARS
+# -----------------------
+# Produce commented declarations of non-tagged libtool config variables
+# suitable for insertion in the LIBTOOL CONFIG section of the 'libtool'
+# script.  Tagged libtool config variables (even for the LIBTOOL CONFIG
+# section) are produced by _LT_LIBTOOL_TAG_VARS.
+m4_defun([_LT_LIBTOOL_CONFIG_VARS],
+[m4_foreach([_lt_var],
+    m4_quote(_lt_decl_filter([tagged?], [no], [], lt_decl_varnames)),
+    [m4_n([_LT_LIBTOOL_DECLARE(_lt_var)])])])
+
+
+# _LT_LIBTOOL_TAG_VARS(TAG)
+# -------------------------
+m4_define([_LT_LIBTOOL_TAG_VARS],
+[m4_foreach([_lt_var], m4_quote(lt_decl_tag_varnames),
+    [m4_n([_LT_LIBTOOL_DECLARE(_lt_var, [$1])])])])
+
+
+# _LT_TAGVAR(VARNAME, [TAGNAME])
+# ------------------------------
+m4_define([_LT_TAGVAR], [m4_ifval([$2], [$1_$2], [$1])])
+
+
+# _LT_CONFIG_COMMANDS
+# -------------------
+# Send accumulated output to $CONFIG_STATUS.  Thanks to the lists of
+# variables for single and double quote escaping we saved from calls
+# to _LT_DECL, we can put quote escaped variables declarations
+# into 'config.status', and then the shell code to quote escape them in
+# for loops in 'config.status'.  Finally, any additional code accumulated
+# from calls to _LT_CONFIG_LIBTOOL_INIT is expanded.
+m4_defun([_LT_CONFIG_COMMANDS],
+[AC_PROVIDE_IFELSE([LT_OUTPUT],
+	dnl If the libtool generation code has been placed in $CONFIG_LT,
+	dnl instead of duplicating it all over again into config.status,
+	dnl then we will have config.status run $CONFIG_LT later, so it
+	dnl needs to know what name is stored there:
+        [AC_CONFIG_COMMANDS([libtool],
+            [$SHELL $CONFIG_LT || AS_EXIT(1)], [CONFIG_LT='$CONFIG_LT'])],
+    dnl If the libtool generation code is destined for config.status,
+    dnl expand the accumulated commands and init code now:
+    [AC_CONFIG_COMMANDS([libtool],
+        [_LT_OUTPUT_LIBTOOL_COMMANDS], [_LT_OUTPUT_LIBTOOL_COMMANDS_INIT])])
+])#_LT_CONFIG_COMMANDS
+
+
+# Initialize.
+m4_define([_LT_OUTPUT_LIBTOOL_COMMANDS_INIT],
+[
+
+# The HP-UX ksh and POSIX shell print the target directory to stdout
+# if CDPATH is set.
+(unset CDPATH) >/dev/null 2>&1 && unset CDPATH
+
+sed_quote_subst='$sed_quote_subst'
+double_quote_subst='$double_quote_subst'
+delay_variable_subst='$delay_variable_subst'
+_LT_CONFIG_STATUS_DECLARATIONS
+LTCC='$LTCC'
+LTCFLAGS='$LTCFLAGS'
+compiler='$compiler_DEFAULT'
+
+# A function that is used when there is no print builtin or printf.
+func_fallback_echo ()
+{
+  eval 'cat <<_LTECHO_EOF
+\$[]1
+_LTECHO_EOF'
+}
+
+# Quote evaled strings.
+for var in lt_decl_all_varnames([[ \
+]], lt_decl_quote_varnames); do
+    case \`eval \\\\\$ECHO \\\\""\\\\\$\$var"\\\\"\` in
+    *[[\\\\\\\`\\"\\\$]]*)
+      eval "lt_\$var=\\\\\\"\\\`\\\$ECHO \\"\\\$\$var\\" | \\\$SED \\"\\\$sed_quote_subst\\"\\\`\\\\\\"" ## exclude from sc_prohibit_nested_quotes
+      ;;
+    *)
+      eval "lt_\$var=\\\\\\"\\\$\$var\\\\\\""
+      ;;
+    esac
+done
+
+# Double-quote double-evaled strings.
+for var in lt_decl_all_varnames([[ \
+]], lt_decl_dquote_varnames); do
+    case \`eval \\\\\$ECHO \\\\""\\\\\$\$var"\\\\"\` in
+    *[[\\\\\\\`\\"\\\$]]*)
+      eval "lt_\$var=\\\\\\"\\\`\\\$ECHO \\"\\\$\$var\\" | \\\$SED -e \\"\\\$double_quote_subst\\" -e \\"\\\$sed_quote_subst\\" -e \\"\\\$delay_variable_subst\\"\\\`\\\\\\"" ## exclude from sc_prohibit_nested_quotes
+      ;;
+    *)
+      eval "lt_\$var=\\\\\\"\\\$\$var\\\\\\""
+      ;;
+    esac
+done
+
+_LT_OUTPUT_LIBTOOL_INIT
+])
+
+# _LT_GENERATED_FILE_INIT(FILE, [COMMENT])
+# ------------------------------------
+# Generate a child script FILE with all initialization necessary to
+# reuse the environment learned by the parent script, and make the
+# file executable.  If COMMENT is supplied, it is inserted after the
+# '#!' sequence but before initialization text begins.  After this
+# macro, additional text can be appended to FILE to form the body of
+# the child script.  The macro ends with non-zero status if the
+# file could not be fully written (such as if the disk is full).
+m4_ifdef([AS_INIT_GENERATED],
+[m4_defun([_LT_GENERATED_FILE_INIT],[AS_INIT_GENERATED($@)])],
+[m4_defun([_LT_GENERATED_FILE_INIT],
+[m4_require([AS_PREPARE])]dnl
+[m4_pushdef([AS_MESSAGE_LOG_FD])]dnl
+[lt_write_fail=0
+cat >$1 <<_ASEOF || lt_write_fail=1
+#! $SHELL
+# Generated by $as_me.
+$2
+SHELL=\${CONFIG_SHELL-$SHELL}
+export SHELL
+_ASEOF
+cat >>$1 <<\_ASEOF || lt_write_fail=1
+AS_SHELL_SANITIZE
+_AS_PREPARE
+exec AS_MESSAGE_FD>&1
+_ASEOF
+test 0 = "$lt_write_fail" && chmod +x $1[]dnl
+m4_popdef([AS_MESSAGE_LOG_FD])])])# _LT_GENERATED_FILE_INIT
+
+# LT_OUTPUT
+# ---------
+# This macro allows early generation of the libtool script (before
+# AC_OUTPUT is called), incase it is used in configure for compilation
+# tests.
+AC_DEFUN([LT_OUTPUT],
+[: ${CONFIG_LT=./config.lt}
+AC_MSG_NOTICE([creating $CONFIG_LT])
+_LT_GENERATED_FILE_INIT(["$CONFIG_LT"],
+[# Run this file to recreate a libtool stub with the current configuration.])
+
+cat >>"$CONFIG_LT" <<\_LTEOF
+lt_cl_silent=false
+exec AS_MESSAGE_LOG_FD>>config.log
+{
+  echo
+  AS_BOX([Running $as_me.])
+} >&AS_MESSAGE_LOG_FD
+
+lt_cl_help="\
+'$as_me' creates a local libtool stub from the current configuration,
+for use in further configure time tests before the real libtool is
+generated.
+
+Usage: $[0] [[OPTIONS]]
+
+  -h, --help      print this help, then exit
+  -V, --version   print version number, then exit
+  -q, --quiet     do not print progress messages
+  -d, --debug     don't remove temporary files
+
+Report bugs to <bug-libtool@gnu.org>."
+
+lt_cl_version="\
+m4_ifset([AC_PACKAGE_NAME], [AC_PACKAGE_NAME ])config.lt[]dnl
+m4_ifset([AC_PACKAGE_VERSION], [ AC_PACKAGE_VERSION])
+configured by $[0], generated by m4_PACKAGE_STRING.
+
+Copyright (C) 2011 Free Software Foundation, Inc.
+This config.lt script is free software; the Free Software Foundation
+gives unlimited permision to copy, distribute and modify it."
+
+while test 0 != $[#]
+do
+  case $[1] in
+    --version | --v* | -V )
+      echo "$lt_cl_version"; exit 0 ;;
+    --help | --h* | -h )
+      echo "$lt_cl_help"; exit 0 ;;
+    --debug | --d* | -d )
+      debug=: ;;
+    --quiet | --q* | --silent | --s* | -q )
+      lt_cl_silent=: ;;
+
+    -*) AC_MSG_ERROR([unrecognized option: $[1]
+Try '$[0] --help' for more information.]) ;;
+
+    *) AC_MSG_ERROR([unrecognized argument: $[1]
+Try '$[0] --help' for more information.]) ;;
+  esac
+  shift
+done
+
+if $lt_cl_silent; then
+  exec AS_MESSAGE_FD>/dev/null
+fi
+_LTEOF
+
+cat >>"$CONFIG_LT" <<_LTEOF
+_LT_OUTPUT_LIBTOOL_COMMANDS_INIT
+_LTEOF
+
+cat >>"$CONFIG_LT" <<\_LTEOF
+AC_MSG_NOTICE([creating $ofile])
+_LT_OUTPUT_LIBTOOL_COMMANDS
+AS_EXIT(0)
+_LTEOF
+chmod +x "$CONFIG_LT"
+
+# configure is writing to config.log, but config.lt does its own redirection,
+# appending to config.log, which fails on DOS, as config.log is still kept
+# open by configure.  Here we exec the FD to /dev/null, effectively closing
+# config.log, so it can be properly (re)opened and appended to by config.lt.
+lt_cl_success=:
+test yes = "$silent" &&
+  lt_config_lt_args="$lt_config_lt_args --quiet"
+exec AS_MESSAGE_LOG_FD>/dev/null
+$SHELL "$CONFIG_LT" $lt_config_lt_args || lt_cl_success=false
+exec AS_MESSAGE_LOG_FD>>config.log
+$lt_cl_success || AS_EXIT(1)
+])# LT_OUTPUT
+
+
+# _LT_CONFIG(TAG)
+# ---------------
+# If TAG is the built-in tag, create an initial libtool script with a
+# default configuration from the untagged config vars.  Otherwise add code
+# to config.status for appending the configuration named by TAG from the
+# matching tagged config vars.
+m4_defun([_LT_CONFIG],
+[m4_require([_LT_FILEUTILS_DEFAULTS])dnl
+_LT_CONFIG_SAVE_COMMANDS([
+  m4_define([_LT_TAG], m4_if([$1], [], [C], [$1]))dnl
+  m4_if(_LT_TAG, [C], [
+    # See if we are running on zsh, and set the options that allow our
+    # commands through without removal of \ escapes.
+    if test -n "${ZSH_VERSION+set}"; then
+      setopt NO_GLOB_SUBST
+    fi
+
+    cfgfile=${ofile}T
+    trap "$RM \"$cfgfile\"; exit 1" 1 2 15
+    $RM "$cfgfile"
+
+    cat <<_LT_EOF >> "$cfgfile"
+#! $SHELL
+# Generated automatically by $as_me ($PACKAGE) $VERSION
+# Libtool was configured on host `(hostname || uname -n) 2>/dev/null | sed 1q`:
+# NOTE: Changes made to this file will be lost: look at ltmain.sh.
+
+# Provide generalized library-building support services.
+# Written by Gordon Matzigkeit, 1996
+
+_LT_COPYING
+_LT_LIBTOOL_TAGS
+
+# Configured defaults for sys_lib_dlsearch_path munging.
+: \${LT_SYS_LIBRARY_PATH="$configure_time_lt_sys_library_path"}
+
+# ### BEGIN LIBTOOL CONFIG
+_LT_LIBTOOL_CONFIG_VARS
+_LT_LIBTOOL_TAG_VARS
+# ### END LIBTOOL CONFIG
+
+_LT_EOF
+
+    cat <<'_LT_EOF' >> "$cfgfile"
+
+# ### BEGIN FUNCTIONS SHARED WITH CONFIGURE
+
+_LT_PREPARE_MUNGE_PATH_LIST
+_LT_PREPARE_CC_BASENAME
+
+# ### END FUNCTIONS SHARED WITH CONFIGURE
+
+_LT_EOF
+
+  case $host_os in
+  aix3*)
+    cat <<\_LT_EOF >> "$cfgfile"
+# AIX sometimes has problems with the GCC collect2 program.  For some
+# reason, if we set the COLLECT_NAMES environment variable, the problems
+# vanish in a puff of smoke.
+if test set != "${COLLECT_NAMES+set}"; then
+  COLLECT_NAMES=
+  export COLLECT_NAMES
+fi
+_LT_EOF
+    ;;
+  esac
+
+  _LT_PROG_LTMAIN
+
+  # We use sed instead of cat because bash on DJGPP gets confused if
+  # if finds mixed CR/LF and LF-only lines.  Since sed operates in
+  # text mode, it properly converts lines to CR/LF.  This bash problem
+  # is reportedly fixed, but why not run on old versions too?
+  sed '$q' "$ltmain" >> "$cfgfile" \
+     || (rm -f "$cfgfile"; exit 1)
+
+   mv -f "$cfgfile" "$ofile" ||
+    (rm -f "$ofile" && cp "$cfgfile" "$ofile" && rm -f "$cfgfile")
+  chmod +x "$ofile"
+],
+[cat <<_LT_EOF >> "$ofile"
+
+dnl Unfortunately we have to use $1 here, since _LT_TAG is not expanded
+dnl in a comment (ie after a #).
+# ### BEGIN LIBTOOL TAG CONFIG: $1
+_LT_LIBTOOL_TAG_VARS(_LT_TAG)
+# ### END LIBTOOL TAG CONFIG: $1
+_LT_EOF
+])dnl /m4_if
+],
+[m4_if([$1], [], [
+    PACKAGE='$PACKAGE'
+    VERSION='$VERSION'
+    RM='$RM'
+    ofile='$ofile'], [])
+])dnl /_LT_CONFIG_SAVE_COMMANDS
+])# _LT_CONFIG
+
+
+# LT_SUPPORTED_TAG(TAG)
+# ---------------------
+# Trace this macro to discover what tags are supported by the libtool
+# --tag option, using:
+#    autoconf --trace 'LT_SUPPORTED_TAG:$1'
+AC_DEFUN([LT_SUPPORTED_TAG], [])
+
+
+# C support is built-in for now
+m4_define([_LT_LANG_C_enabled], [])
+m4_define([_LT_TAGS], [])
+
+
+# LT_LANG(LANG)
+# -------------
+# Enable libtool support for the given language if not already enabled.
+AC_DEFUN([LT_LANG],
+[AC_BEFORE([$0], [LT_OUTPUT])dnl
+m4_case([$1],
+  [C],			[_LT_LANG(C)],
+  [C++],		[_LT_LANG(CXX)],
+  [Go],			[_LT_LANG(GO)],
+  [Java],		[_LT_LANG(GCJ)],
+  [Fortran 77],		[_LT_LANG(F77)],
+  [Fortran],		[_LT_LANG(FC)],
+  [Windows Resource],	[_LT_LANG(RC)],
+  [m4_ifdef([_LT_LANG_]$1[_CONFIG],
+    [_LT_LANG($1)],
+    [m4_fatal([$0: unsupported language: "$1"])])])dnl
+])# LT_LANG
+
+
+# _LT_LANG(LANGNAME)
+# ------------------
+m4_defun([_LT_LANG],
+[m4_ifdef([_LT_LANG_]$1[_enabled], [],
+  [LT_SUPPORTED_TAG([$1])dnl
+  m4_append([_LT_TAGS], [$1 ])dnl
+  m4_define([_LT_LANG_]$1[_enabled], [])dnl
+  _LT_LANG_$1_CONFIG($1)])dnl
+])# _LT_LANG
+
+
+m4_ifndef([AC_PROG_GO], [
+############################################################
+# NOTE: This macro has been submitted for inclusion into   #
+#  GNU Autoconf as AC_PROG_GO.  When it is available in    #
+#  a released version of Autoconf we should remove this    #
+#  macro and use it instead.                               #
+############################################################
+m4_defun([AC_PROG_GO],
+[AC_LANG_PUSH(Go)dnl
+AC_ARG_VAR([GOC],     [Go compiler command])dnl
+AC_ARG_VAR([GOFLAGS], [Go compiler flags])dnl
+_AC_ARG_VAR_LDFLAGS()dnl
+AC_CHECK_TOOL(GOC, gccgo)
+if test -z "$GOC"; then
+  if test -n "$ac_tool_prefix"; then
+    AC_CHECK_PROG(GOC, [${ac_tool_prefix}gccgo], [${ac_tool_prefix}gccgo])
+  fi
+fi
+if test -z "$GOC"; then
+  AC_CHECK_PROG(GOC, gccgo, gccgo, false)
+fi
+])#m4_defun
+])#m4_ifndef
+
+
+# _LT_LANG_DEFAULT_CONFIG
+# -----------------------
+m4_defun([_LT_LANG_DEFAULT_CONFIG],
+[AC_PROVIDE_IFELSE([AC_PROG_CXX],
+  [LT_LANG(CXX)],
+  [m4_define([AC_PROG_CXX], defn([AC_PROG_CXX])[LT_LANG(CXX)])])
+
+AC_PROVIDE_IFELSE([AC_PROG_F77],
+  [LT_LANG(F77)],
+  [m4_define([AC_PROG_F77], defn([AC_PROG_F77])[LT_LANG(F77)])])
+
+AC_PROVIDE_IFELSE([AC_PROG_FC],
+  [LT_LANG(FC)],
+  [m4_define([AC_PROG_FC], defn([AC_PROG_FC])[LT_LANG(FC)])])
+
+dnl The call to [A][M_PROG_GCJ] is quoted like that to stop aclocal
+dnl pulling things in needlessly.
+AC_PROVIDE_IFELSE([AC_PROG_GCJ],
+  [LT_LANG(GCJ)],
+  [AC_PROVIDE_IFELSE([A][M_PROG_GCJ],
+    [LT_LANG(GCJ)],
+    [AC_PROVIDE_IFELSE([LT_PROG_GCJ],
+      [LT_LANG(GCJ)],
+      [m4_ifdef([AC_PROG_GCJ],
+	[m4_define([AC_PROG_GCJ], defn([AC_PROG_GCJ])[LT_LANG(GCJ)])])
+       m4_ifdef([A][M_PROG_GCJ],
+	[m4_define([A][M_PROG_GCJ], defn([A][M_PROG_GCJ])[LT_LANG(GCJ)])])
+       m4_ifdef([LT_PROG_GCJ],
+	[m4_define([LT_PROG_GCJ], defn([LT_PROG_GCJ])[LT_LANG(GCJ)])])])])])
+
+AC_PROVIDE_IFELSE([AC_PROG_GO],
+  [LT_LANG(GO)],
+  [m4_define([AC_PROG_GO], defn([AC_PROG_GO])[LT_LANG(GO)])])
+
+AC_PROVIDE_IFELSE([LT_PROG_RC],
+  [LT_LANG(RC)],
+  [m4_define([LT_PROG_RC], defn([LT_PROG_RC])[LT_LANG(RC)])])
+])# _LT_LANG_DEFAULT_CONFIG
+
+# Obsolete macros:
+AU_DEFUN([AC_LIBTOOL_CXX], [LT_LANG(C++)])
+AU_DEFUN([AC_LIBTOOL_F77], [LT_LANG(Fortran 77)])
+AU_DEFUN([AC_LIBTOOL_FC], [LT_LANG(Fortran)])
+AU_DEFUN([AC_LIBTOOL_GCJ], [LT_LANG(Java)])
+AU_DEFUN([AC_LIBTOOL_RC], [LT_LANG(Windows Resource)])
+dnl aclocal-1.4 backwards compatibility:
+dnl AC_DEFUN([AC_LIBTOOL_CXX], [])
+dnl AC_DEFUN([AC_LIBTOOL_F77], [])
+dnl AC_DEFUN([AC_LIBTOOL_FC], [])
+dnl AC_DEFUN([AC_LIBTOOL_GCJ], [])
+dnl AC_DEFUN([AC_LIBTOOL_RC], [])
+
+
+# _LT_TAG_COMPILER
+# ----------------
+m4_defun([_LT_TAG_COMPILER],
+[AC_REQUIRE([AC_PROG_CC])dnl
+
+_LT_DECL([LTCC], [CC], [1], [A C compiler])dnl
+_LT_DECL([LTCFLAGS], [CFLAGS], [1], [LTCC compiler flags])dnl
+_LT_TAGDECL([CC], [compiler], [1], [A language specific compiler])dnl
+_LT_TAGDECL([with_gcc], [GCC], [0], [Is the compiler the GNU compiler?])dnl
+
+# If no C compiler was specified, use CC.
+LTCC=${LTCC-"$CC"}
+
+# If no C compiler flags were specified, use CFLAGS.
+LTCFLAGS=${LTCFLAGS-"$CFLAGS"}
+
+# Allow CC to be a program name with arguments.
+compiler=$CC
+])# _LT_TAG_COMPILER
+
+
+# _LT_COMPILER_BOILERPLATE
+# ------------------------
+# Check for compiler boilerplate output or warnings with
+# the simple compiler test code.
+m4_defun([_LT_COMPILER_BOILERPLATE],
+[m4_require([_LT_DECL_SED])dnl
+ac_outfile=conftest.$ac_objext
+echo "$lt_simple_compile_test_code" >conftest.$ac_ext
+eval "$ac_compile" 2>&1 >/dev/null | $SED '/^$/d; /^ *+/d' >conftest.err
+_lt_compiler_boilerplate=`cat conftest.err`
+$RM conftest*
+])# _LT_COMPILER_BOILERPLATE
+
+
+# _LT_LINKER_BOILERPLATE
+# ----------------------
+# Check for linker boilerplate output or warnings with
+# the simple link test code.
+m4_defun([_LT_LINKER_BOILERPLATE],
+[m4_require([_LT_DECL_SED])dnl
+ac_outfile=conftest.$ac_objext
+echo "$lt_simple_link_test_code" >conftest.$ac_ext
+eval "$ac_link" 2>&1 >/dev/null | $SED '/^$/d; /^ *+/d' >conftest.err
+_lt_linker_boilerplate=`cat conftest.err`
+$RM -r conftest*
+])# _LT_LINKER_BOILERPLATE
+
+# _LT_REQUIRED_DARWIN_CHECKS
+# -------------------------
+m4_defun_once([_LT_REQUIRED_DARWIN_CHECKS],[
+  case $host_os in
+    rhapsody* | darwin*)
+    AC_CHECK_TOOL([DSYMUTIL], [dsymutil], [:])
+    AC_CHECK_TOOL([NMEDIT], [nmedit], [:])
+    AC_CHECK_TOOL([LIPO], [lipo], [:])
+    AC_CHECK_TOOL([OTOOL], [otool], [:])
+    AC_CHECK_TOOL([OTOOL64], [otool64], [:])
+    _LT_DECL([], [DSYMUTIL], [1],
+      [Tool to manipulate archived DWARF debug symbol files on Mac OS X])
+    _LT_DECL([], [NMEDIT], [1],
+      [Tool to change global to local symbols on Mac OS X])
+    _LT_DECL([], [LIPO], [1],
+      [Tool to manipulate fat objects and archives on Mac OS X])
+    _LT_DECL([], [OTOOL], [1],
+      [ldd/readelf like tool for Mach-O binaries on Mac OS X])
+    _LT_DECL([], [OTOOL64], [1],
+      [ldd/readelf like tool for 64 bit Mach-O binaries on Mac OS X 10.4])
+
+    AC_CACHE_CHECK([for -single_module linker flag],[lt_cv_apple_cc_single_mod],
+      [lt_cv_apple_cc_single_mod=no
+      if test -z "$LT_MULTI_MODULE"; then
+	# By default we will add the -single_module flag. You can override
+	# by either setting the environment variable LT_MULTI_MODULE
+	# non-empty at configure time, or by adding -multi_module to the
+	# link flags.
+	rm -rf libconftest.dylib*
+	echo "int foo(void){return 1;}" > conftest.c
+	echo "$LTCC $LTCFLAGS $LDFLAGS -o libconftest.dylib \
+-dynamiclib -Wl,-single_module conftest.c" >&AS_MESSAGE_LOG_FD
+	$LTCC $LTCFLAGS $LDFLAGS -o libconftest.dylib \
+	  -dynamiclib -Wl,-single_module conftest.c 2>conftest.err
+        _lt_result=$?
+	# If there is a non-empty error log, and "single_module"
+	# appears in it, assume the flag caused a linker warning
+        if test -s conftest.err && $GREP single_module conftest.err; then
+	  cat conftest.err >&AS_MESSAGE_LOG_FD
+	# Otherwise, if the output was created with a 0 exit code from
+	# the compiler, it worked.
+	elif test -f libconftest.dylib && test 0 = "$_lt_result"; then
+	  lt_cv_apple_cc_single_mod=yes
+	else
+	  cat conftest.err >&AS_MESSAGE_LOG_FD
+	fi
+	rm -rf libconftest.dylib*
+	rm -f conftest.*
+      fi])
+
+    AC_CACHE_CHECK([for -exported_symbols_list linker flag],
+      [lt_cv_ld_exported_symbols_list],
+      [lt_cv_ld_exported_symbols_list=no
+      save_LDFLAGS=$LDFLAGS
+      echo "_main" > conftest.sym
+      LDFLAGS="$LDFLAGS -Wl,-exported_symbols_list,conftest.sym"
+      AC_LINK_IFELSE([AC_LANG_PROGRAM([],[])],
+	[lt_cv_ld_exported_symbols_list=yes],
+	[lt_cv_ld_exported_symbols_list=no])
+	LDFLAGS=$save_LDFLAGS
+    ])
+
+    AC_CACHE_CHECK([for -force_load linker flag],[lt_cv_ld_force_load],
+      [lt_cv_ld_force_load=no
+      cat > conftest.c << _LT_EOF
+int forced_loaded() { return 2;}
+_LT_EOF
+      echo "$LTCC $LTCFLAGS -c -o conftest.o conftest.c" >&AS_MESSAGE_LOG_FD
+      $LTCC $LTCFLAGS -c -o conftest.o conftest.c 2>&AS_MESSAGE_LOG_FD
+      echo "$AR cru libconftest.a conftest.o" >&AS_MESSAGE_LOG_FD
+      $AR cru libconftest.a conftest.o 2>&AS_MESSAGE_LOG_FD
+      echo "$RANLIB libconftest.a" >&AS_MESSAGE_LOG_FD
+      $RANLIB libconftest.a 2>&AS_MESSAGE_LOG_FD
+      cat > conftest.c << _LT_EOF
+int main() { return 0;}
+_LT_EOF
+      echo "$LTCC $LTCFLAGS $LDFLAGS -o conftest conftest.c -Wl,-force_load,./libconftest.a" >&AS_MESSAGE_LOG_FD
+      $LTCC $LTCFLAGS $LDFLAGS -o conftest conftest.c -Wl,-force_load,./libconftest.a 2>conftest.err
+      _lt_result=$?
+      if test -s conftest.err && $GREP force_load conftest.err; then
+	cat conftest.err >&AS_MESSAGE_LOG_FD
+      elif test -f conftest && test 0 = "$_lt_result" && $GREP forced_load conftest >/dev/null 2>&1; then
+	lt_cv_ld_force_load=yes
+      else
+	cat conftest.err >&AS_MESSAGE_LOG_FD
+      fi
+        rm -f conftest.err libconftest.a conftest conftest.c
+        rm -rf conftest.dSYM
+    ])
+    case $host_os in
+    rhapsody* | darwin1.[[012]])
+      _lt_dar_allow_undefined='$wl-undefined ${wl}suppress' ;;
+    darwin1.*)
+      _lt_dar_allow_undefined='$wl-flat_namespace $wl-undefined ${wl}suppress' ;;
+    darwin*) # darwin 5.x on
+      # if running on 10.5 or later, the deployment target defaults
+      # to the OS version, if on x86, and 10.4, the deployment
+      # target defaults to 10.4. Don't you love it?
+      case ${MACOSX_DEPLOYMENT_TARGET-10.0},$host in
+	10.0,*86*-darwin8*|10.0,*-darwin[[91]]*)
+	  _lt_dar_allow_undefined='$wl-undefined ${wl}dynamic_lookup' ;;
+	10.[[012]][[,.]]*)
+	  _lt_dar_allow_undefined='$wl-flat_namespace $wl-undefined ${wl}suppress' ;;
+	10.*)
+	  _lt_dar_allow_undefined='$wl-undefined ${wl}dynamic_lookup' ;;
+      esac
+    ;;
+  esac
+    if test yes = "$lt_cv_apple_cc_single_mod"; then
+      _lt_dar_single_mod='$single_module'
+    fi
+    if test yes = "$lt_cv_ld_exported_symbols_list"; then
+      _lt_dar_export_syms=' $wl-exported_symbols_list,$output_objdir/$libname-symbols.expsym'
+    else
+      _lt_dar_export_syms='~$NMEDIT -s $output_objdir/$libname-symbols.expsym $lib'
+    fi
+    if test : != "$DSYMUTIL" && test no = "$lt_cv_ld_force_load"; then
+      _lt_dsymutil='~$DSYMUTIL $lib || :'
+    else
+      _lt_dsymutil=
+    fi
+    ;;
+  esac
+])
+
+
+# _LT_DARWIN_LINKER_FEATURES([TAG])
+# ---------------------------------
+# Checks for linker and compiler features on darwin
+m4_defun([_LT_DARWIN_LINKER_FEATURES],
+[
+  m4_require([_LT_REQUIRED_DARWIN_CHECKS])
+  _LT_TAGVAR(archive_cmds_need_lc, $1)=no
+  _LT_TAGVAR(hardcode_direct, $1)=no
+  _LT_TAGVAR(hardcode_automatic, $1)=yes
+  _LT_TAGVAR(hardcode_shlibpath_var, $1)=unsupported
+  if test yes = "$lt_cv_ld_force_load"; then
+    _LT_TAGVAR(whole_archive_flag_spec, $1)='`for conv in $convenience\"\"; do test  -n \"$conv\" && new_convenience=\"$new_convenience $wl-force_load,$conv\"; done; func_echo_all \"$new_convenience\"`'
+    m4_case([$1], [F77], [_LT_TAGVAR(compiler_needs_object, $1)=yes],
+                  [FC],  [_LT_TAGVAR(compiler_needs_object, $1)=yes])
+  else
+    _LT_TAGVAR(whole_archive_flag_spec, $1)=''
+  fi
+  _LT_TAGVAR(link_all_deplibs, $1)=yes
+  _LT_TAGVAR(allow_undefined_flag, $1)=$_lt_dar_allow_undefined
+  case $cc_basename in
+     ifort*|nagfor*) _lt_dar_can_shared=yes ;;
+     *) _lt_dar_can_shared=$GCC ;;
+  esac
+  if test yes = "$_lt_dar_can_shared"; then
+    output_verbose_link_cmd=func_echo_all
+    _LT_TAGVAR(archive_cmds, $1)="\$CC -dynamiclib \$allow_undefined_flag -o \$lib \$libobjs \$deplibs \$compiler_flags -install_name \$rpath/\$soname \$verstring $_lt_dar_single_mod$_lt_dsymutil"
+    _LT_TAGVAR(module_cmds, $1)="\$CC \$allow_undefined_flag -o \$lib -bundle \$libobjs \$deplibs \$compiler_flags$_lt_dsymutil"
+    _LT_TAGVAR(archive_expsym_cmds, $1)="sed 's|^|_|' < \$export_symbols > \$output_objdir/\$libname-symbols.expsym~\$CC -dynamiclib \$allow_undefined_flag -o \$lib \$libobjs \$deplibs \$compiler_flags -install_name \$rpath/\$soname \$verstring $_lt_dar_single_mod$_lt_dar_export_syms$_lt_dsymutil"
+    _LT_TAGVAR(module_expsym_cmds, $1)="sed -e 's|^|_|' < \$export_symbols > \$output_objdir/\$libname-symbols.expsym~\$CC \$allow_undefined_flag -o \$lib -bundle \$libobjs \$deplibs \$compiler_flags$_lt_dar_export_syms$_lt_dsymutil"
+    m4_if([$1], [CXX],
+[   if test yes != "$lt_cv_apple_cc_single_mod"; then
+      _LT_TAGVAR(archive_cmds, $1)="\$CC -r -keep_private_externs -nostdlib -o \$lib-master.o \$libobjs~\$CC -dynamiclib \$allow_undefined_flag -o \$lib \$lib-master.o \$deplibs \$compiler_flags -install_name \$rpath/\$soname \$verstring$_lt_dsymutil"
+      _LT_TAGVAR(archive_expsym_cmds, $1)="sed 's|^|_|' < \$export_symbols > \$output_objdir/\$libname-symbols.expsym~\$CC -r -keep_private_externs -nostdlib -o \$lib-master.o \$libobjs~\$CC -dynamiclib \$allow_undefined_flag -o \$lib \$lib-master.o \$deplibs \$compiler_flags -install_name \$rpath/\$soname \$verstring$_lt_dar_export_syms$_lt_dsymutil"
+    fi
+],[])
+  else
+  _LT_TAGVAR(ld_shlibs, $1)=no
+  fi
+])
+
+# _LT_SYS_MODULE_PATH_AIX([TAGNAME])
+# ----------------------------------
+# Links a minimal program and checks the executable
+# for the system default hardcoded library path. In most cases,
+# this is /usr/lib:/lib, but when the MPI compilers are used
+# the location of the communication and MPI libs are included too.
+# If we don't find anything, use the default library path according
+# to the aix ld manual.
+# Store the results from the different compilers for each TAGNAME.
+# Allow to override them for all tags through lt_cv_aix_libpath.
+m4_defun([_LT_SYS_MODULE_PATH_AIX],
+[m4_require([_LT_DECL_SED])dnl
+if test set = "${lt_cv_aix_libpath+set}"; then
+  aix_libpath=$lt_cv_aix_libpath
+else
+  AC_CACHE_VAL([_LT_TAGVAR([lt_cv_aix_libpath_], [$1])],
+  [AC_LINK_IFELSE([AC_LANG_PROGRAM],[
+  lt_aix_libpath_sed='[
+      /Import File Strings/,/^$/ {
+	  /^0/ {
+	      s/^0  *\([^ ]*\) *$/\1/
+	      p
+	  }
+      }]'
+  _LT_TAGVAR([lt_cv_aix_libpath_], [$1])=`dump -H conftest$ac_exeext 2>/dev/null | $SED -n -e "$lt_aix_libpath_sed"`
+  # Check for a 64-bit object if we didn't find anything.
+  if test -z "$_LT_TAGVAR([lt_cv_aix_libpath_], [$1])"; then
+    _LT_TAGVAR([lt_cv_aix_libpath_], [$1])=`dump -HX64 conftest$ac_exeext 2>/dev/null | $SED -n -e "$lt_aix_libpath_sed"`
+  fi],[])
+  if test -z "$_LT_TAGVAR([lt_cv_aix_libpath_], [$1])"; then
+    _LT_TAGVAR([lt_cv_aix_libpath_], [$1])=/usr/lib:/lib
+  fi
+  ])
+  aix_libpath=$_LT_TAGVAR([lt_cv_aix_libpath_], [$1])
+fi
+])# _LT_SYS_MODULE_PATH_AIX
+
+
+# _LT_SHELL_INIT(ARG)
+# -------------------
+m4_define([_LT_SHELL_INIT],
+[m4_divert_text([M4SH-INIT], [$1
+])])# _LT_SHELL_INIT
+
+
+
+# _LT_PROG_ECHO_BACKSLASH
+# -----------------------
+# Find how we can fake an echo command that does not interpret backslash.
+# In particular, with Autoconf 2.60 or later we add some code to the start
+# of the generated configure script that will find a shell with a builtin
+# printf (that we can use as an echo command).
+m4_defun([_LT_PROG_ECHO_BACKSLASH],
+[ECHO='\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\'
+ECHO=$ECHO$ECHO$ECHO$ECHO$ECHO
+ECHO=$ECHO$ECHO$ECHO$ECHO$ECHO$ECHO
+
+AC_MSG_CHECKING([how to print strings])
+# Test print first, because it will be a builtin if present.
+if test "X`( print -r -- -n ) 2>/dev/null`" = X-n && \
+   test "X`print -r -- $ECHO 2>/dev/null`" = "X$ECHO"; then
+  ECHO='print -r --'
+elif test "X`printf %s $ECHO 2>/dev/null`" = "X$ECHO"; then
+  ECHO='printf %s\n'
+else
+  # Use this function as a fallback that always works.
+  func_fallback_echo ()
+  {
+    eval 'cat <<_LTECHO_EOF
+$[]1
+_LTECHO_EOF'
+  }
+  ECHO='func_fallback_echo'
+fi
+
+# func_echo_all arg...
+# Invoke $ECHO with all args, space-separated.
+func_echo_all ()
+{
+    $ECHO "$*"
+}
+
+case $ECHO in
+  printf*) AC_MSG_RESULT([printf]) ;;
+  print*) AC_MSG_RESULT([print -r]) ;;
+  *) AC_MSG_RESULT([cat]) ;;
+esac
+
+m4_ifdef([_AS_DETECT_SUGGESTED],
+[_AS_DETECT_SUGGESTED([
+  test -n "${ZSH_VERSION+set}${BASH_VERSION+set}" || (
+    ECHO='\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\'
+    ECHO=$ECHO$ECHO$ECHO$ECHO$ECHO
+    ECHO=$ECHO$ECHO$ECHO$ECHO$ECHO$ECHO
+    PATH=/empty FPATH=/empty; export PATH FPATH
+    test "X`printf %s $ECHO`" = "X$ECHO" \
+      || test "X`print -r -- $ECHO`" = "X$ECHO" )])])
+
+_LT_DECL([], [SHELL], [1], [Shell to use when invoking shell scripts])
+_LT_DECL([], [ECHO], [1], [An echo program that protects backslashes])
+])# _LT_PROG_ECHO_BACKSLASH
+
+
+# _LT_WITH_SYSROOT
+# ----------------
+AC_DEFUN([_LT_WITH_SYSROOT],
+[AC_MSG_CHECKING([for sysroot])
+AC_ARG_WITH([sysroot],
+[AS_HELP_STRING([--with-sysroot@<:@=DIR@:>@],
+  [Search for dependent libraries within DIR (or the compiler's sysroot
+   if not specified).])],
+[], [with_sysroot=no])
+
+dnl lt_sysroot will always be passed unquoted.  We quote it here
+dnl in case the user passed a directory name.
+lt_sysroot=
+case $with_sysroot in #(
+ yes)
+   if test yes = "$GCC"; then
+     lt_sysroot=`$CC --print-sysroot 2>/dev/null`
+   fi
+   ;; #(
+ /*)
+   lt_sysroot=`echo "$with_sysroot" | sed -e "$sed_quote_subst"`
+   ;; #(
+ no|'')
+   ;; #(
+ *)
+   AC_MSG_RESULT([$with_sysroot])
+   AC_MSG_ERROR([The sysroot must be an absolute path.])
+   ;;
+esac
+
+ AC_MSG_RESULT([${lt_sysroot:-no}])
+_LT_DECL([], [lt_sysroot], [0], [The root where to search for ]dnl
+[dependent libraries, and where our libraries should be installed.])])
+
+# _LT_ENABLE_LOCK
+# ---------------
+m4_defun([_LT_ENABLE_LOCK],
+[AC_ARG_ENABLE([libtool-lock],
+  [AS_HELP_STRING([--disable-libtool-lock],
+    [avoid locking (might break parallel builds)])])
+test no = "$enable_libtool_lock" || enable_libtool_lock=yes
+
+# Some flags need to be propagated to the compiler or linker for good
+# libtool support.
+case $host in
+ia64-*-hpux*)
+  # Find out what ABI is being produced by ac_compile, and set mode
+  # options accordingly.
+  echo 'int i;' > conftest.$ac_ext
+  if AC_TRY_EVAL(ac_compile); then
+    case `/usr/bin/file conftest.$ac_objext` in
+      *ELF-32*)
+	HPUX_IA64_MODE=32
+	;;
+      *ELF-64*)
+	HPUX_IA64_MODE=64
+	;;
+    esac
+  fi
+  rm -rf conftest*
+  ;;
+*-*-irix6*)
+  # Find out what ABI is being produced by ac_compile, and set linker
+  # options accordingly.
+  echo '[#]line '$LINENO' "configure"' > conftest.$ac_ext
+  if AC_TRY_EVAL(ac_compile); then
+    if test yes = "$lt_cv_prog_gnu_ld"; then
+      case `/usr/bin/file conftest.$ac_objext` in
+	*32-bit*)
+	  LD="${LD-ld} -melf32bsmip"
+	  ;;
+	*N32*)
+	  LD="${LD-ld} -melf32bmipn32"
+	  ;;
+	*64-bit*)
+	  LD="${LD-ld} -melf64bmip"
+	;;
+      esac
+    else
+      case `/usr/bin/file conftest.$ac_objext` in
+	*32-bit*)
+	  LD="${LD-ld} -32"
+	  ;;
+	*N32*)
+	  LD="${LD-ld} -n32"
+	  ;;
+	*64-bit*)
+	  LD="${LD-ld} -64"
+	  ;;
+      esac
+    fi
+  fi
+  rm -rf conftest*
+  ;;
+
+mips64*-*linux*)
+  # Find out what ABI is being produced by ac_compile, and set linker
+  # options accordingly.
+  echo '[#]line '$LINENO' "configure"' > conftest.$ac_ext
+  if AC_TRY_EVAL(ac_compile); then
+    emul=elf
+    case `/usr/bin/file conftest.$ac_objext` in
+      *32-bit*)
+	emul="${emul}32"
+	;;
+      *64-bit*)
+	emul="${emul}64"
+	;;
+    esac
+    case `/usr/bin/file conftest.$ac_objext` in
+      *MSB*)
+	emul="${emul}btsmip"
+	;;
+      *LSB*)
+	emul="${emul}ltsmip"
+	;;
+    esac
+    case `/usr/bin/file conftest.$ac_objext` in
+      *N32*)
+	emul="${emul}n32"
+	;;
+    esac
+    LD="${LD-ld} -m $emul"
+  fi
+  rm -rf conftest*
+  ;;
+
+x86_64-*kfreebsd*-gnu|x86_64-*linux*|powerpc*-*linux*| \
+s390*-*linux*|s390*-*tpf*|sparc*-*linux*)
+  # Find out what ABI is being produced by ac_compile, and set linker
+  # options accordingly.  Note that the listed cases only cover the
+  # situations where additional linker options are needed (such as when
+  # doing 32-bit compilation for a host where ld defaults to 64-bit, or
+  # vice versa); the common cases where no linker options are needed do
+  # not appear in the list.
+  echo 'int i;' > conftest.$ac_ext
+  if AC_TRY_EVAL(ac_compile); then
+    case `/usr/bin/file conftest.o` in
+      *32-bit*)
+	case $host in
+	  x86_64-*kfreebsd*-gnu)
+	    LD="${LD-ld} -m elf_i386_fbsd"
+	    ;;
+	  x86_64-*linux*)
+	    case `/usr/bin/file conftest.o` in
+	      *x86-64*)
+		LD="${LD-ld} -m elf32_x86_64"
+		;;
+	      *)
+		LD="${LD-ld} -m elf_i386"
+		;;
+	    esac
+	    ;;
+	  powerpc64le-*linux*)
+	    LD="${LD-ld} -m elf32lppclinux"
+	    ;;
+	  powerpc64-*linux*)
+	    LD="${LD-ld} -m elf32ppclinux"
+	    ;;
+	  s390x-*linux*)
+	    LD="${LD-ld} -m elf_s390"
+	    ;;
+	  sparc64-*linux*)
+	    LD="${LD-ld} -m elf32_sparc"
+	    ;;
+	esac
+	;;
+      *64-bit*)
+	case $host in
+	  x86_64-*kfreebsd*-gnu)
+	    LD="${LD-ld} -m elf_x86_64_fbsd"
+	    ;;
+	  x86_64-*linux*)
+	    LD="${LD-ld} -m elf_x86_64"
+	    ;;
+	  powerpcle-*linux*)
+	    LD="${LD-ld} -m elf64lppc"
+	    ;;
+	  powerpc-*linux*)
+	    LD="${LD-ld} -m elf64ppc"
+	    ;;
+	  s390*-*linux*|s390*-*tpf*)
+	    LD="${LD-ld} -m elf64_s390"
+	    ;;
+	  sparc*-*linux*)
+	    LD="${LD-ld} -m elf64_sparc"
+	    ;;
+	esac
+	;;
+    esac
+  fi
+  rm -rf conftest*
+  ;;
+
+*-*-sco3.2v5*)
+  # On SCO OpenServer 5, we need -belf to get full-featured binaries.
+  SAVE_CFLAGS=$CFLAGS
+  CFLAGS="$CFLAGS -belf"
+  AC_CACHE_CHECK([whether the C compiler needs -belf], lt_cv_cc_needs_belf,
+    [AC_LANG_PUSH(C)
+     AC_LINK_IFELSE([AC_LANG_PROGRAM([[]],[[]])],[lt_cv_cc_needs_belf=yes],[lt_cv_cc_needs_belf=no])
+     AC_LANG_POP])
+  if test yes != "$lt_cv_cc_needs_belf"; then
+    # this is probably gcc 2.8.0, egcs 1.0 or newer; no need for -belf
+    CFLAGS=$SAVE_CFLAGS
+  fi
+  ;;
+*-*solaris*)
+  # Find out what ABI is being produced by ac_compile, and set linker
+  # options accordingly.
+  echo 'int i;' > conftest.$ac_ext
+  if AC_TRY_EVAL(ac_compile); then
+    case `/usr/bin/file conftest.o` in
+    *64-bit*)
+      case $lt_cv_prog_gnu_ld in
+      yes*)
+        case $host in
+        i?86-*-solaris*|x86_64-*-solaris*)
+          LD="${LD-ld} -m elf_x86_64"
+          ;;
+        sparc*-*-solaris*)
+          LD="${LD-ld} -m elf64_sparc"
+          ;;
+        esac
+        # GNU ld 2.21 introduced _sol2 emulations.  Use them if available.
+        if ${LD-ld} -V | grep _sol2 >/dev/null 2>&1; then
+          LD=${LD-ld}_sol2
+        fi
+        ;;
+      *)
+	if ${LD-ld} -64 -r -o conftest2.o conftest.o >/dev/null 2>&1; then
+	  LD="${LD-ld} -64"
+	fi
+	;;
+      esac
+      ;;
+    esac
+  fi
+  rm -rf conftest*
+  ;;
+esac
+
+need_locks=$enable_libtool_lock
+])# _LT_ENABLE_LOCK
+
+
+# _LT_PROG_AR
+# -----------
+m4_defun([_LT_PROG_AR],
+[AC_CHECK_TOOLS(AR, [ar], false)
+: ${AR=ar}
+: ${AR_FLAGS=cru}
+_LT_DECL([], [AR], [1], [The archiver])
+_LT_DECL([], [AR_FLAGS], [1], [Flags to create an archive])
+
+AC_CACHE_CHECK([for archiver @FILE support], [lt_cv_ar_at_file],
+  [lt_cv_ar_at_file=no
+   AC_COMPILE_IFELSE([AC_LANG_PROGRAM],
+     [echo conftest.$ac_objext > conftest.lst
+      lt_ar_try='$AR $AR_FLAGS libconftest.a @conftest.lst >&AS_MESSAGE_LOG_FD'
+      AC_TRY_EVAL([lt_ar_try])
+      if test 0 -eq "$ac_status"; then
+	# Ensure the archiver fails upon bogus file names.
+	rm -f conftest.$ac_objext libconftest.a
+	AC_TRY_EVAL([lt_ar_try])
+	if test 0 -ne "$ac_status"; then
+          lt_cv_ar_at_file=@
+        fi
+      fi
+      rm -f conftest.* libconftest.a
+     ])
+  ])
+
+if test no = "$lt_cv_ar_at_file"; then
+  archiver_list_spec=
+else
+  archiver_list_spec=$lt_cv_ar_at_file
+fi
+_LT_DECL([], [archiver_list_spec], [1],
+  [How to feed a file listing to the archiver])
+])# _LT_PROG_AR
+
+
+# _LT_CMD_OLD_ARCHIVE
+# -------------------
+m4_defun([_LT_CMD_OLD_ARCHIVE],
+[_LT_PROG_AR
+
+AC_CHECK_TOOL(STRIP, strip, :)
+test -z "$STRIP" && STRIP=:
+_LT_DECL([], [STRIP], [1], [A symbol stripping program])
+
+AC_CHECK_TOOL(RANLIB, ranlib, :)
+test -z "$RANLIB" && RANLIB=:
+_LT_DECL([], [RANLIB], [1],
+    [Commands used to install an old-style archive])
+
+# Determine commands to create old-style static archives.
+old_archive_cmds='$AR $AR_FLAGS $oldlib$oldobjs'
+old_postinstall_cmds='chmod 644 $oldlib'
+old_postuninstall_cmds=
+
+if test -n "$RANLIB"; then
+  case $host_os in
+  bitrig* | openbsd*)
+    old_postinstall_cmds="$old_postinstall_cmds~\$RANLIB -t \$tool_oldlib"
+    ;;
+  *)
+    old_postinstall_cmds="$old_postinstall_cmds~\$RANLIB \$tool_oldlib"
+    ;;
+  esac
+  old_archive_cmds="$old_archive_cmds~\$RANLIB \$tool_oldlib"
+fi
+
+case $host_os in
+  darwin*)
+    lock_old_archive_extraction=yes ;;
+  *)
+    lock_old_archive_extraction=no ;;
+esac
+_LT_DECL([], [old_postinstall_cmds], [2])
+_LT_DECL([], [old_postuninstall_cmds], [2])
+_LT_TAGDECL([], [old_archive_cmds], [2],
+    [Commands used to build an old-style archive])
+_LT_DECL([], [lock_old_archive_extraction], [0],
+    [Whether to use a lock for old archive extraction])
+])# _LT_CMD_OLD_ARCHIVE
+
+
+# _LT_COMPILER_OPTION(MESSAGE, VARIABLE-NAME, FLAGS,
+#		[OUTPUT-FILE], [ACTION-SUCCESS], [ACTION-FAILURE])
+# ----------------------------------------------------------------
+# Check whether the given compiler option works
+AC_DEFUN([_LT_COMPILER_OPTION],
+[m4_require([_LT_FILEUTILS_DEFAULTS])dnl
+m4_require([_LT_DECL_SED])dnl
+AC_CACHE_CHECK([$1], [$2],
+  [$2=no
+   m4_if([$4], , [ac_outfile=conftest.$ac_objext], [ac_outfile=$4])
+   echo "$lt_simple_compile_test_code" > conftest.$ac_ext
+   lt_compiler_flag="$3"  ## exclude from sc_useless_quotes_in_assignment
+   # Insert the option either (1) after the last *FLAGS variable, or
+   # (2) before a word containing "conftest.", or (3) at the end.
+   # Note that $ac_compile itself does not contain backslashes and begins
+   # with a dollar sign (not a hyphen), so the echo should work correctly.
+   # The option is referenced via a variable to avoid confusing sed.
+   lt_compile=`echo "$ac_compile" | $SED \
+   -e 's:.*FLAGS}\{0,1\} :&$lt_compiler_flag :; t' \
+   -e 's: [[^ ]]*conftest\.: $lt_compiler_flag&:; t' \
+   -e 's:$: $lt_compiler_flag:'`
+   (eval echo "\"\$as_me:$LINENO: $lt_compile\"" >&AS_MESSAGE_LOG_FD)
+   (eval "$lt_compile" 2>conftest.err)
+   ac_status=$?
+   cat conftest.err >&AS_MESSAGE_LOG_FD
+   echo "$as_me:$LINENO: \$? = $ac_status" >&AS_MESSAGE_LOG_FD
+   if (exit $ac_status) && test -s "$ac_outfile"; then
+     # The compiler can only warn and ignore the option if not recognized
+     # So say no if there are warnings other than the usual output.
+     $ECHO "$_lt_compiler_boilerplate" | $SED '/^$/d' >conftest.exp
+     $SED '/^$/d; /^ *+/d' conftest.err >conftest.er2
+     if test ! -s conftest.er2 || diff conftest.exp conftest.er2 >/dev/null; then
+       $2=yes
+     fi
+   fi
+   $RM conftest*
+])
+
+if test yes = "[$]$2"; then
+    m4_if([$5], , :, [$5])
+else
+    m4_if([$6], , :, [$6])
+fi
+])# _LT_COMPILER_OPTION
+
+# Old name:
+AU_ALIAS([AC_LIBTOOL_COMPILER_OPTION], [_LT_COMPILER_OPTION])
+dnl aclocal-1.4 backwards compatibility:
+dnl AC_DEFUN([AC_LIBTOOL_COMPILER_OPTION], [])
+
+
+# _LT_LINKER_OPTION(MESSAGE, VARIABLE-NAME, FLAGS,
+#                  [ACTION-SUCCESS], [ACTION-FAILURE])
+# ----------------------------------------------------
+# Check whether the given linker option works
+AC_DEFUN([_LT_LINKER_OPTION],
+[m4_require([_LT_FILEUTILS_DEFAULTS])dnl
+m4_require([_LT_DECL_SED])dnl
+AC_CACHE_CHECK([$1], [$2],
+  [$2=no
+   save_LDFLAGS=$LDFLAGS
+   LDFLAGS="$LDFLAGS $3"
+   echo "$lt_simple_link_test_code" > conftest.$ac_ext
+   if (eval $ac_link 2>conftest.err) && test -s conftest$ac_exeext; then
+     # The linker can only warn and ignore the option if not recognized
+     # So say no if there are warnings
+     if test -s conftest.err; then
+       # Append any errors to the config.log.
+       cat conftest.err 1>&AS_MESSAGE_LOG_FD
+       $ECHO "$_lt_linker_boilerplate" | $SED '/^$/d' > conftest.exp
+       $SED '/^$/d; /^ *+/d' conftest.err >conftest.er2
+       if diff conftest.exp conftest.er2 >/dev/null; then
+         $2=yes
+       fi
+     else
+       $2=yes
+     fi
+   fi
+   $RM -r conftest*
+   LDFLAGS=$save_LDFLAGS
+])
+
+if test yes = "[$]$2"; then
+    m4_if([$4], , :, [$4])
+else
+    m4_if([$5], , :, [$5])
+fi
+])# _LT_LINKER_OPTION
+
+# Old name:
+AU_ALIAS([AC_LIBTOOL_LINKER_OPTION], [_LT_LINKER_OPTION])
+dnl aclocal-1.4 backwards compatibility:
+dnl AC_DEFUN([AC_LIBTOOL_LINKER_OPTION], [])
+
+
+# LT_CMD_MAX_LEN
+#---------------
+AC_DEFUN([LT_CMD_MAX_LEN],
+[AC_REQUIRE([AC_CANONICAL_HOST])dnl
+# find the maximum length of command line arguments
+AC_MSG_CHECKING([the maximum length of command line arguments])
+AC_CACHE_VAL([lt_cv_sys_max_cmd_len], [dnl
+  i=0
+  teststring=ABCD
+
+  case $build_os in
+  msdosdjgpp*)
+    # On DJGPP, this test can blow up pretty badly due to problems in libc
+    # (any single argument exceeding 2000 bytes causes a buffer overrun
+    # during glob expansion).  Even if it were fixed, the result of this
+    # check would be larger than it should be.
+    lt_cv_sys_max_cmd_len=12288;    # 12K is about right
+    ;;
+
+  gnu*)
+    # Under GNU Hurd, this test is not required because there is
+    # no limit to the length of command line arguments.
+    # Libtool will interpret -1 as no limit whatsoever
+    lt_cv_sys_max_cmd_len=-1;
+    ;;
+
+  cygwin* | mingw* | cegcc*)
+    # On Win9x/ME, this test blows up -- it succeeds, but takes
+    # about 5 minutes as the teststring grows exponentially.
+    # Worse, since 9x/ME are not pre-emptively multitasking,
+    # you end up with a "frozen" computer, even though with patience
+    # the test eventually succeeds (with a max line length of 256k).
+    # Instead, let's just punt: use the minimum linelength reported by
+    # all of the supported platforms: 8192 (on NT/2K/XP).
+    lt_cv_sys_max_cmd_len=8192;
+    ;;
+
+  mint*)
+    # On MiNT this can take a long time and run out of memory.
+    lt_cv_sys_max_cmd_len=8192;
+    ;;
+
+  amigaos*)
+    # On AmigaOS with pdksh, this test takes hours, literally.
+    # So we just punt and use a minimum line length of 8192.
+    lt_cv_sys_max_cmd_len=8192;
+    ;;
+
+  bitrig* | darwin* | dragonfly* | freebsd* | netbsd* | openbsd*)
+    # This has been around since 386BSD, at least.  Likely further.
+    if test -x /sbin/sysctl; then
+      lt_cv_sys_max_cmd_len=`/sbin/sysctl -n kern.argmax`
+    elif test -x /usr/sbin/sysctl; then
+      lt_cv_sys_max_cmd_len=`/usr/sbin/sysctl -n kern.argmax`
+    else
+      lt_cv_sys_max_cmd_len=65536	# usable default for all BSDs
+    fi
+    # And add a safety zone
+    lt_cv_sys_max_cmd_len=`expr $lt_cv_sys_max_cmd_len \/ 4`
+    lt_cv_sys_max_cmd_len=`expr $lt_cv_sys_max_cmd_len \* 3`
+    ;;
+
+  interix*)
+    # We know the value 262144 and hardcode it with a safety zone (like BSD)
+    lt_cv_sys_max_cmd_len=196608
+    ;;
+
+  os2*)
+    # The test takes a long time on OS/2.
+    lt_cv_sys_max_cmd_len=8192
+    ;;
+
+  osf*)
+    # Dr. Hans Ekkehard Plesser reports seeing a kernel panic running configure
+    # due to this test when exec_disable_arg_limit is 1 on Tru64. It is not
+    # nice to cause kernel panics so lets avoid the loop below.
+    # First set a reasonable default.
+    lt_cv_sys_max_cmd_len=16384
+    #
+    if test -x /sbin/sysconfig; then
+      case `/sbin/sysconfig -q proc exec_disable_arg_limit` in
+        *1*) lt_cv_sys_max_cmd_len=-1 ;;
+      esac
+    fi
+    ;;
+  sco3.2v5*)
+    lt_cv_sys_max_cmd_len=102400
+    ;;
+  sysv5* | sco5v6* | sysv4.2uw2*)
+    kargmax=`grep ARG_MAX /etc/conf/cf.d/stune 2>/dev/null`
+    if test -n "$kargmax"; then
+      lt_cv_sys_max_cmd_len=`echo $kargmax | sed 's/.*[[	 ]]//'`
+    else
+      lt_cv_sys_max_cmd_len=32768
+    fi
+    ;;
+  *)
+    lt_cv_sys_max_cmd_len=`(getconf ARG_MAX) 2> /dev/null`
+    if test -n "$lt_cv_sys_max_cmd_len" && \
+       test undefined != "$lt_cv_sys_max_cmd_len"; then
+      lt_cv_sys_max_cmd_len=`expr $lt_cv_sys_max_cmd_len \/ 4`
+      lt_cv_sys_max_cmd_len=`expr $lt_cv_sys_max_cmd_len \* 3`
+    else
+      # Make teststring a little bigger before we do anything with it.
+      # a 1K string should be a reasonable start.
+      for i in 1 2 3 4 5 6 7 8; do
+        teststring=$teststring$teststring
+      done
+      SHELL=${SHELL-${CONFIG_SHELL-/bin/sh}}
+      # If test is not a shell built-in, we'll probably end up computing a
+      # maximum length that is only half of the actual maximum length, but
+      # we can't tell.
+      while { test X`env echo "$teststring$teststring" 2>/dev/null` \
+	         = "X$teststring$teststring"; } >/dev/null 2>&1 &&
+	      test 17 != "$i" # 1/2 MB should be enough
+      do
+        i=`expr $i + 1`
+        teststring=$teststring$teststring
+      done
+      # Only check the string length outside the loop.
+      lt_cv_sys_max_cmd_len=`expr "X$teststring" : ".*" 2>&1`
+      teststring=
+      # Add a significant safety factor because C++ compilers can tack on
+      # massive amounts of additional arguments before passing them to the
+      # linker.  It appears as though 1/2 is a usable value.
+      lt_cv_sys_max_cmd_len=`expr $lt_cv_sys_max_cmd_len \/ 2`
+    fi
+    ;;
+  esac
+])
+if test -n "$lt_cv_sys_max_cmd_len"; then
+  AC_MSG_RESULT($lt_cv_sys_max_cmd_len)
+else
+  AC_MSG_RESULT(none)
+fi
+max_cmd_len=$lt_cv_sys_max_cmd_len
+_LT_DECL([], [max_cmd_len], [0],
+    [What is the maximum length of a command?])
+])# LT_CMD_MAX_LEN
+
+# Old name:
+AU_ALIAS([AC_LIBTOOL_SYS_MAX_CMD_LEN], [LT_CMD_MAX_LEN])
+dnl aclocal-1.4 backwards compatibility:
+dnl AC_DEFUN([AC_LIBTOOL_SYS_MAX_CMD_LEN], [])
+
+
+# _LT_HEADER_DLFCN
+# ----------------
+m4_defun([_LT_HEADER_DLFCN],
+[AC_CHECK_HEADERS([dlfcn.h], [], [], [AC_INCLUDES_DEFAULT])dnl
+])# _LT_HEADER_DLFCN
+
+
+# _LT_TRY_DLOPEN_SELF (ACTION-IF-TRUE, ACTION-IF-TRUE-W-USCORE,
+#                      ACTION-IF-FALSE, ACTION-IF-CROSS-COMPILING)
+# ----------------------------------------------------------------
+m4_defun([_LT_TRY_DLOPEN_SELF],
+[m4_require([_LT_HEADER_DLFCN])dnl
+if test yes = "$cross_compiling"; then :
+  [$4]
+else
+  lt_dlunknown=0; lt_dlno_uscore=1; lt_dlneed_uscore=2
+  lt_status=$lt_dlunknown
+  cat > conftest.$ac_ext <<_LT_EOF
+[#line $LINENO "configure"
+#include "confdefs.h"
+
+#if HAVE_DLFCN_H
+#include <dlfcn.h>
+#endif
+
+#include <stdio.h>
+
+#ifdef RTLD_GLOBAL
+#  define LT_DLGLOBAL		RTLD_GLOBAL
+#else
+#  ifdef DL_GLOBAL
+#    define LT_DLGLOBAL		DL_GLOBAL
+#  else
+#    define LT_DLGLOBAL		0
+#  endif
+#endif
+
+/* We may have to define LT_DLLAZY_OR_NOW in the command line if we
+   find out it does not work in some platform. */
+#ifndef LT_DLLAZY_OR_NOW
+#  ifdef RTLD_LAZY
+#    define LT_DLLAZY_OR_NOW		RTLD_LAZY
+#  else
+#    ifdef DL_LAZY
+#      define LT_DLLAZY_OR_NOW		DL_LAZY
+#    else
+#      ifdef RTLD_NOW
+#        define LT_DLLAZY_OR_NOW	RTLD_NOW
+#      else
+#        ifdef DL_NOW
+#          define LT_DLLAZY_OR_NOW	DL_NOW
+#        else
+#          define LT_DLLAZY_OR_NOW	0
+#        endif
+#      endif
+#    endif
+#  endif
+#endif
+
+/* When -fvisibility=hidden is used, assume the code has been annotated
+   correspondingly for the symbols needed.  */
+#if defined __GNUC__ && (((__GNUC__ == 3) && (__GNUC_MINOR__ >= 3)) || (__GNUC__ > 3))
+int fnord () __attribute__((visibility("default")));
+#endif
+
+int fnord () { return 42; }
+int main ()
+{
+  void *self = dlopen (0, LT_DLGLOBAL|LT_DLLAZY_OR_NOW);
+  int status = $lt_dlunknown;
+
+  if (self)
+    {
+      if (dlsym (self,"fnord"))       status = $lt_dlno_uscore;
+      else
+        {
+	  if (dlsym( self,"_fnord"))  status = $lt_dlneed_uscore;
+          else puts (dlerror ());
+	}
+      /* dlclose (self); */
+    }
+  else
+    puts (dlerror ());
+
+  return status;
+}]
+_LT_EOF
+  if AC_TRY_EVAL(ac_link) && test -s "conftest$ac_exeext" 2>/dev/null; then
+    (./conftest; exit; ) >&AS_MESSAGE_LOG_FD 2>/dev/null
+    lt_status=$?
+    case x$lt_status in
+      x$lt_dlno_uscore) $1 ;;
+      x$lt_dlneed_uscore) $2 ;;
+      x$lt_dlunknown|x*) $3 ;;
+    esac
+  else :
+    # compilation failed
+    $3
+  fi
+fi
+rm -fr conftest*
+])# _LT_TRY_DLOPEN_SELF
+
+
+# LT_SYS_DLOPEN_SELF
+# ------------------
+AC_DEFUN([LT_SYS_DLOPEN_SELF],
+[m4_require([_LT_HEADER_DLFCN])dnl
+if test yes != "$enable_dlopen"; then
+  enable_dlopen=unknown
+  enable_dlopen_self=unknown
+  enable_dlopen_self_static=unknown
+else
+  lt_cv_dlopen=no
+  lt_cv_dlopen_libs=
+
+  case $host_os in
+  beos*)
+    lt_cv_dlopen=load_add_on
+    lt_cv_dlopen_libs=
+    lt_cv_dlopen_self=yes
+    ;;
+
+  mingw* | pw32* | cegcc*)
+    lt_cv_dlopen=LoadLibrary
+    lt_cv_dlopen_libs=
+    ;;
+
+  cygwin*)
+    lt_cv_dlopen=dlopen
+    lt_cv_dlopen_libs=
+    ;;
+
+  darwin*)
+    # if libdl is installed we need to link against it
+    AC_CHECK_LIB([dl], [dlopen],
+		[lt_cv_dlopen=dlopen lt_cv_dlopen_libs=-ldl],[
+    lt_cv_dlopen=dyld
+    lt_cv_dlopen_libs=
+    lt_cv_dlopen_self=yes
+    ])
+    ;;
+
+  tpf*)
+    # Don't try to run any link tests for TPF.  We know it's impossible
+    # because TPF is a cross-compiler, and we know how we open DSOs.
+    lt_cv_dlopen=dlopen
+    lt_cv_dlopen_libs=
+    lt_cv_dlopen_self=no
+    ;;
+
+  *)
+    AC_CHECK_FUNC([shl_load],
+	  [lt_cv_dlopen=shl_load],
+      [AC_CHECK_LIB([dld], [shl_load],
+	    [lt_cv_dlopen=shl_load lt_cv_dlopen_libs=-ldld],
+	[AC_CHECK_FUNC([dlopen],
+	      [lt_cv_dlopen=dlopen],
+	  [AC_CHECK_LIB([dl], [dlopen],
+		[lt_cv_dlopen=dlopen lt_cv_dlopen_libs=-ldl],
+	    [AC_CHECK_LIB([svld], [dlopen],
+		  [lt_cv_dlopen=dlopen lt_cv_dlopen_libs=-lsvld],
+	      [AC_CHECK_LIB([dld], [dld_link],
+		    [lt_cv_dlopen=dld_link lt_cv_dlopen_libs=-ldld])
+	      ])
+	    ])
+	  ])
+	])
+      ])
+    ;;
+  esac
+
+  if test no = "$lt_cv_dlopen"; then
+    enable_dlopen=no
+  else
+    enable_dlopen=yes
+  fi
+
+  case $lt_cv_dlopen in
+  dlopen)
+    save_CPPFLAGS=$CPPFLAGS
+    test yes = "$ac_cv_header_dlfcn_h" && CPPFLAGS="$CPPFLAGS -DHAVE_DLFCN_H"
+
+    save_LDFLAGS=$LDFLAGS
+    wl=$lt_prog_compiler_wl eval LDFLAGS=\"\$LDFLAGS $export_dynamic_flag_spec\"
+
+    save_LIBS=$LIBS
+    LIBS="$lt_cv_dlopen_libs $LIBS"
+
+    AC_CACHE_CHECK([whether a program can dlopen itself],
+	  lt_cv_dlopen_self, [dnl
+	  _LT_TRY_DLOPEN_SELF(
+	    lt_cv_dlopen_self=yes, lt_cv_dlopen_self=yes,
+	    lt_cv_dlopen_self=no, lt_cv_dlopen_self=cross)
+    ])
+
+    if test yes = "$lt_cv_dlopen_self"; then
+      wl=$lt_prog_compiler_wl eval LDFLAGS=\"\$LDFLAGS $lt_prog_compiler_static\"
+      AC_CACHE_CHECK([whether a statically linked program can dlopen itself],
+	  lt_cv_dlopen_self_static, [dnl
+	  _LT_TRY_DLOPEN_SELF(
+	    lt_cv_dlopen_self_static=yes, lt_cv_dlopen_self_static=yes,
+	    lt_cv_dlopen_self_static=no,  lt_cv_dlopen_self_static=cross)
+      ])
+    fi
+
+    CPPFLAGS=$save_CPPFLAGS
+    LDFLAGS=$save_LDFLAGS
+    LIBS=$save_LIBS
+    ;;
+  esac
+
+  case $lt_cv_dlopen_self in
+  yes|no) enable_dlopen_self=$lt_cv_dlopen_self ;;
+  *) enable_dlopen_self=unknown ;;
+  esac
+
+  case $lt_cv_dlopen_self_static in
+  yes|no) enable_dlopen_self_static=$lt_cv_dlopen_self_static ;;
+  *) enable_dlopen_self_static=unknown ;;
+  esac
+fi
+_LT_DECL([dlopen_support], [enable_dlopen], [0],
+	 [Whether dlopen is supported])
+_LT_DECL([dlopen_self], [enable_dlopen_self], [0],
+	 [Whether dlopen of programs is supported])
+_LT_DECL([dlopen_self_static], [enable_dlopen_self_static], [0],
+	 [Whether dlopen of statically linked programs is supported])
+])# LT_SYS_DLOPEN_SELF
+
+# Old name:
+AU_ALIAS([AC_LIBTOOL_DLOPEN_SELF], [LT_SYS_DLOPEN_SELF])
+dnl aclocal-1.4 backwards compatibility:
+dnl AC_DEFUN([AC_LIBTOOL_DLOPEN_SELF], [])
+
+
+# _LT_COMPILER_C_O([TAGNAME])
+# ---------------------------
+# Check to see if options -c and -o are simultaneously supported by compiler.
+# This macro does not hard code the compiler like AC_PROG_CC_C_O.
+m4_defun([_LT_COMPILER_C_O],
+[m4_require([_LT_DECL_SED])dnl
+m4_require([_LT_FILEUTILS_DEFAULTS])dnl
+m4_require([_LT_TAG_COMPILER])dnl
+AC_CACHE_CHECK([if $compiler supports -c -o file.$ac_objext],
+  [_LT_TAGVAR(lt_cv_prog_compiler_c_o, $1)],
+  [_LT_TAGVAR(lt_cv_prog_compiler_c_o, $1)=no
+   $RM -r conftest 2>/dev/null
+   mkdir conftest
+   cd conftest
+   mkdir out
+   echo "$lt_simple_compile_test_code" > conftest.$ac_ext
+
+   lt_compiler_flag="-o out/conftest2.$ac_objext"
+   # Insert the option either (1) after the last *FLAGS variable, or
+   # (2) before a word containing "conftest.", or (3) at the end.
+   # Note that $ac_compile itself does not contain backslashes and begins
+   # with a dollar sign (not a hyphen), so the echo should work correctly.
+   lt_compile=`echo "$ac_compile" | $SED \
+   -e 's:.*FLAGS}\{0,1\} :&$lt_compiler_flag :; t' \
+   -e 's: [[^ ]]*conftest\.: $lt_compiler_flag&:; t' \
+   -e 's:$: $lt_compiler_flag:'`
+   (eval echo "\"\$as_me:$LINENO: $lt_compile\"" >&AS_MESSAGE_LOG_FD)
+   (eval "$lt_compile" 2>out/conftest.err)
+   ac_status=$?
+   cat out/conftest.err >&AS_MESSAGE_LOG_FD
+   echo "$as_me:$LINENO: \$? = $ac_status" >&AS_MESSAGE_LOG_FD
+   if (exit $ac_status) && test -s out/conftest2.$ac_objext
+   then
+     # The compiler can only warn and ignore the option if not recognized
+     # So say no if there are warnings
+     $ECHO "$_lt_compiler_boilerplate" | $SED '/^$/d' > out/conftest.exp
+     $SED '/^$/d; /^ *+/d' out/conftest.err >out/conftest.er2
+     if test ! -s out/conftest.er2 || diff out/conftest.exp out/conftest.er2 >/dev/null; then
+       _LT_TAGVAR(lt_cv_prog_compiler_c_o, $1)=yes
+     fi
+   fi
+   chmod u+w . 2>&AS_MESSAGE_LOG_FD
+   $RM conftest*
+   # SGI C++ compiler will create directory out/ii_files/ for
+   # template instantiation
+   test -d out/ii_files && $RM out/ii_files/* && rmdir out/ii_files
+   $RM out/* && rmdir out
+   cd ..
+   $RM -r conftest
+   $RM conftest*
+])
+_LT_TAGDECL([compiler_c_o], [lt_cv_prog_compiler_c_o], [1],
+	[Does compiler simultaneously support -c and -o options?])
+])# _LT_COMPILER_C_O
+
+
+# _LT_COMPILER_FILE_LOCKS([TAGNAME])
+# ----------------------------------
+# Check to see if we can do hard links to lock some files if needed
+m4_defun([_LT_COMPILER_FILE_LOCKS],
+[m4_require([_LT_ENABLE_LOCK])dnl
+m4_require([_LT_FILEUTILS_DEFAULTS])dnl
+_LT_COMPILER_C_O([$1])
+
+hard_links=nottested
+if test no = "$_LT_TAGVAR(lt_cv_prog_compiler_c_o, $1)" && test no != "$need_locks"; then
+  # do not overwrite the value of need_locks provided by the user
+  AC_MSG_CHECKING([if we can lock with hard links])
+  hard_links=yes
+  $RM conftest*
+  ln conftest.a conftest.b 2>/dev/null && hard_links=no
+  touch conftest.a
+  ln conftest.a conftest.b 2>&5 || hard_links=no
+  ln conftest.a conftest.b 2>/dev/null && hard_links=no
+  AC_MSG_RESULT([$hard_links])
+  if test no = "$hard_links"; then
+    AC_MSG_WARN(['$CC' does not support '-c -o', so 'make -j' may be unsafe])
+    need_locks=warn
+  fi
+else
+  need_locks=no
+fi
+_LT_DECL([], [need_locks], [1], [Must we lock files when doing compilation?])
+])# _LT_COMPILER_FILE_LOCKS
+
+
+# _LT_CHECK_OBJDIR
+# ----------------
+m4_defun([_LT_CHECK_OBJDIR],
+[AC_CACHE_CHECK([for objdir], [lt_cv_objdir],
+[rm -f .libs 2>/dev/null
+mkdir .libs 2>/dev/null
+if test -d .libs; then
+  lt_cv_objdir=.libs
+else
+  # MS-DOS does not allow filenames that begin with a dot.
+  lt_cv_objdir=_libs
+fi
+rmdir .libs 2>/dev/null])
+objdir=$lt_cv_objdir
+_LT_DECL([], [objdir], [0],
+         [The name of the directory that contains temporary libtool files])dnl
+m4_pattern_allow([LT_OBJDIR])dnl
+AC_DEFINE_UNQUOTED([LT_OBJDIR], "$lt_cv_objdir/",
+  [Define to the sub-directory where libtool stores uninstalled libraries.])
+])# _LT_CHECK_OBJDIR
+
+
+# _LT_LINKER_HARDCODE_LIBPATH([TAGNAME])
+# --------------------------------------
+# Check hardcoding attributes.
+m4_defun([_LT_LINKER_HARDCODE_LIBPATH],
+[AC_MSG_CHECKING([how to hardcode library paths into programs])
+_LT_TAGVAR(hardcode_action, $1)=
+if test -n "$_LT_TAGVAR(hardcode_libdir_flag_spec, $1)" ||
+   test -n "$_LT_TAGVAR(runpath_var, $1)" ||
+   test yes = "$_LT_TAGVAR(hardcode_automatic, $1)"; then
+
+  # We can hardcode non-existent directories.
+  if test no != "$_LT_TAGVAR(hardcode_direct, $1)" &&
+     # If the only mechanism to avoid hardcoding is shlibpath_var, we
+     # have to relink, otherwise we might link with an installed library
+     # when we should be linking with a yet-to-be-installed one
+     ## test no != "$_LT_TAGVAR(hardcode_shlibpath_var, $1)" &&
+     test no != "$_LT_TAGVAR(hardcode_minus_L, $1)"; then
+    # Linking always hardcodes the temporary library directory.
+    _LT_TAGVAR(hardcode_action, $1)=relink
+  else
+    # We can link without hardcoding, and we can hardcode nonexisting dirs.
+    _LT_TAGVAR(hardcode_action, $1)=immediate
+  fi
+else
+  # We cannot hardcode anything, or else we can only hardcode existing
+  # directories.
+  _LT_TAGVAR(hardcode_action, $1)=unsupported
+fi
+AC_MSG_RESULT([$_LT_TAGVAR(hardcode_action, $1)])
+
+if test relink = "$_LT_TAGVAR(hardcode_action, $1)" ||
+   test yes = "$_LT_TAGVAR(inherit_rpath, $1)"; then
+  # Fast installation is not supported
+  enable_fast_install=no
+elif test yes = "$shlibpath_overrides_runpath" ||
+     test no = "$enable_shared"; then
+  # Fast installation is not necessary
+  enable_fast_install=needless
+fi
+_LT_TAGDECL([], [hardcode_action], [0],
+    [How to hardcode a shared library path into an executable])
+])# _LT_LINKER_HARDCODE_LIBPATH
+
+
+# _LT_CMD_STRIPLIB
+# ----------------
+m4_defun([_LT_CMD_STRIPLIB],
+[m4_require([_LT_DECL_EGREP])
+striplib=
+old_striplib=
+AC_MSG_CHECKING([whether stripping libraries is possible])
+if test -n "$STRIP" && $STRIP -V 2>&1 | $GREP "GNU strip" >/dev/null; then
+  test -z "$old_striplib" && old_striplib="$STRIP --strip-debug"
+  test -z "$striplib" && striplib="$STRIP --strip-unneeded"
+  AC_MSG_RESULT([yes])
+else
+# FIXME - insert some real tests, host_os isn't really good enough
+  case $host_os in
+  darwin*)
+    if test -n "$STRIP"; then
+      striplib="$STRIP -x"
+      old_striplib="$STRIP -S"
+      AC_MSG_RESULT([yes])
+    else
+      AC_MSG_RESULT([no])
+    fi
+    ;;
+  *)
+    AC_MSG_RESULT([no])
+    ;;
+  esac
+fi
+_LT_DECL([], [old_striplib], [1], [Commands to strip libraries])
+_LT_DECL([], [striplib], [1])
+])# _LT_CMD_STRIPLIB
+
+
+# _LT_PREPARE_MUNGE_PATH_LIST
+# ---------------------------
+# Make sure func_munge_path_list() is defined correctly.
+m4_defun([_LT_PREPARE_MUNGE_PATH_LIST],
+[[# func_munge_path_list VARIABLE PATH
+# -----------------------------------
+# VARIABLE is name of variable containing _space_ separated list of
+# directories to be munged by the contents of PATH, which is string
+# having a format:
+# "DIR[:DIR]:"
+#       string "DIR[ DIR]" will be prepended to VARIABLE
+# ":DIR[:DIR]"
+#       string "DIR[ DIR]" will be appended to VARIABLE
+# "DIRP[:DIRP]::[DIRA:]DIRA"
+#       string "DIRP[ DIRP]" will be prepended to VARIABLE and string
+#       "DIRA[ DIRA]" will be appended to VARIABLE
+# "DIR[:DIR]"
+#       VARIABLE will be replaced by "DIR[ DIR]"
+func_munge_path_list ()
+{
+    case x@S|@2 in
+    x)
+        ;;
+    *:)
+        eval @S|@1=\"`$ECHO @S|@2 | $SED 's/:/ /g'` \@S|@@S|@1\"
+        ;;
+    x:*)
+        eval @S|@1=\"\@S|@@S|@1 `$ECHO @S|@2 | $SED 's/:/ /g'`\"
+        ;;
+    *::*)
+        eval @S|@1=\"\@S|@@S|@1\ `$ECHO @S|@2 | $SED -e 's/.*:://' -e 's/:/ /g'`\"
+        eval @S|@1=\"`$ECHO @S|@2 | $SED -e 's/::.*//' -e 's/:/ /g'`\ \@S|@@S|@1\"
+        ;;
+    *)
+        eval @S|@1=\"`$ECHO @S|@2 | $SED 's/:/ /g'`\"
+        ;;
+    esac
+}
+]])# _LT_PREPARE_PATH_LIST
+
+
+# _LT_SYS_DYNAMIC_LINKER([TAG])
+# -----------------------------
+# PORTME Fill in your ld.so characteristics
+m4_defun([_LT_SYS_DYNAMIC_LINKER],
+[AC_REQUIRE([AC_CANONICAL_HOST])dnl
+m4_require([_LT_DECL_EGREP])dnl
+m4_require([_LT_FILEUTILS_DEFAULTS])dnl
+m4_require([_LT_DECL_OBJDUMP])dnl
+m4_require([_LT_DECL_SED])dnl
+m4_require([_LT_CHECK_SHELL_FEATURES])dnl
+m4_require([_LT_PREPARE_MUNGE_PATH_LIST])dnl
+AC_MSG_CHECKING([dynamic linker characteristics])
+m4_if([$1],
+	[], [
+if test yes = "$GCC"; then
+  case $host_os in
+    darwin*) lt_awk_arg='/^libraries:/,/LR/' ;;
+    *) lt_awk_arg='/^libraries:/' ;;
+  esac
+  case $host_os in
+    mingw* | cegcc*) lt_sed_strip_eq='s|=\([[A-Za-z]]:\)|\1|g' ;;
+    *) lt_sed_strip_eq='s|=/|/|g' ;;
+  esac
+  lt_search_path_spec=`$CC -print-search-dirs | awk $lt_awk_arg | $SED -e "s/^libraries://" -e $lt_sed_strip_eq`
+  case $lt_search_path_spec in
+  *\;*)
+    # if the path contains ";" then we assume it to be the separator
+    # otherwise default to the standard path separator (i.e. ":") - it is
+    # assumed that no part of a normal pathname contains ";" but that should
+    # okay in the real world where ";" in dirpaths is itself problematic.
+    lt_search_path_spec=`$ECHO "$lt_search_path_spec" | $SED 's/;/ /g'`
+    ;;
+  *)
+    lt_search_path_spec=`$ECHO "$lt_search_path_spec" | $SED "s/$PATH_SEPARATOR/ /g"`
+    ;;
+  esac
+  # Ok, now we have the path, separated by spaces, we can step through it
+  # and add multilib dir if necessary...
+  lt_tmp_lt_search_path_spec=
+  lt_multi_os_dir=/`$CC $CPPFLAGS $CFLAGS $LDFLAGS -print-multi-os-directory 2>/dev/null`
+  # ...but if some path component already ends with the multilib dir we assume
+  # that all is fine and trust -print-search-dirs as is (GCC 4.2? or newer).
+  case "$lt_multi_os_dir; $lt_search_path_spec " in
+  "/; "* | "/.; "* | "/./; "* | *"$lt_multi_os_dir "* | *"$lt_multi_os_dir/ "*)
+    lt_multi_os_dir=
+    ;;
+  esac
+  for lt_sys_path in $lt_search_path_spec; do
+    if test -d "$lt_sys_path$lt_multi_os_dir"; then
+      lt_tmp_lt_search_path_spec="$lt_tmp_lt_search_path_spec $lt_sys_path$lt_multi_os_dir"
+    elif test -n "$lt_multi_os_dir"; then
+      test -d "$lt_sys_path" && \
+	lt_tmp_lt_search_path_spec="$lt_tmp_lt_search_path_spec $lt_sys_path"
+    fi
+  done
+  lt_search_path_spec=`$ECHO "$lt_tmp_lt_search_path_spec" | awk '
+BEGIN {RS = " "; FS = "/|\n";} {
+  lt_foo = "";
+  lt_count = 0;
+  for (lt_i = NF; lt_i > 0; lt_i--) {
+    if ($lt_i != "" && $lt_i != ".") {
+      if ($lt_i == "..") {
+        lt_count++;
+      } else {
+        if (lt_count == 0) {
+          lt_foo = "/" $lt_i lt_foo;
+        } else {
+          lt_count--;
+        }
+      }
+    }
+  }
+  if (lt_foo != "") { lt_freq[[lt_foo]]++; }
+  if (lt_freq[[lt_foo]] == 1) { print lt_foo; }
+}'`
+  # AWK program above erroneously prepends '/' to C:/dos/paths
+  # for these hosts.
+  case $host_os in
+    mingw* | cegcc*) lt_search_path_spec=`$ECHO "$lt_search_path_spec" |\
+      $SED 's|/\([[A-Za-z]]:\)|\1|g'` ;;
+  esac
+  sys_lib_search_path_spec=`$ECHO "$lt_search_path_spec" | $lt_NL2SP`
+else
+  sys_lib_search_path_spec="/lib /usr/lib /usr/local/lib"
+fi])
+library_names_spec=
+libname_spec='lib$name'
+soname_spec=
+shrext_cmds=.so
+postinstall_cmds=
+postuninstall_cmds=
+finish_cmds=
+finish_eval=
+shlibpath_var=
+shlibpath_overrides_runpath=unknown
+version_type=none
+dynamic_linker="$host_os ld.so"
+sys_lib_dlsearch_path_spec="/lib /usr/lib"
+need_lib_prefix=unknown
+hardcode_into_libs=no
+
+# when you set need_version to no, make sure it does not cause -set_version
+# flags to be left without arguments
+need_version=unknown
+
+AC_ARG_VAR([LT_SYS_LIBRARY_PATH],
+[User-defined run-time library search path.])
+
+case $host_os in
+aix3*)
+  version_type=linux # correct to gnu/linux during the next big refactor
+  library_names_spec='$libname$release$shared_ext$versuffix $libname.a'
+  shlibpath_var=LIBPATH
+
+  # AIX 3 has no versioning support, so we append a major version to the name.
+  soname_spec='$libname$release$shared_ext$major'
+  ;;
+
+aix[[4-9]]*)
+  version_type=linux # correct to gnu/linux during the next big refactor
+  need_lib_prefix=no
+  need_version=no
+  hardcode_into_libs=yes
+  if test ia64 = "$host_cpu"; then
+    # AIX 5 supports IA64
+    library_names_spec='$libname$release$shared_ext$major $libname$release$shared_ext$versuffix $libname$shared_ext'
+    shlibpath_var=LD_LIBRARY_PATH
+  else
+    # With GCC up to 2.95.x, collect2 would create an import file
+    # for dependence libraries.  The import file would start with
+    # the line '#! .'.  This would cause the generated library to
+    # depend on '.', always an invalid library.  This was fixed in
+    # development snapshots of GCC prior to 3.0.
+    case $host_os in
+      aix4 | aix4.[[01]] | aix4.[[01]].*)
+      if { echo '#if __GNUC__ > 2 || (__GNUC__ == 2 && __GNUC_MINOR__ >= 97)'
+	   echo ' yes '
+	   echo '#endif'; } | $CC -E - | $GREP yes > /dev/null; then
+	:
+      else
+	can_build_shared=no
+      fi
+      ;;
+    esac
+    # Using Import Files as archive members, it is possible to support
+    # filename-based versioning of shared library archives on AIX. While
+    # this would work for both with and without runtime linking, it will
+    # prevent static linking of such archives. So we do filename-based
+    # shared library versioning with .so extension only, which is used
+    # when both runtime linking and shared linking is enabled.
+    # Unfortunately, runtime linking may impact performance, so we do
+    # not want this to be the default eventually. Also, we use the
+    # versioned .so libs for executables only if there is the -brtl
+    # linker flag in LDFLAGS as well, or --with-aix-soname=svr4 only.
+    # To allow for filename-based versioning support, we need to create
+    # libNAME.so.V as an archive file, containing:
+    # *) an Import File, referring to the versioned filename of the
+    #    archive as well as the shared archive member, telling the
+    #    bitwidth (32 or 64) of that shared object, and providing the
+    #    list of exported symbols of that shared object, eventually
+    #    decorated with the 'weak' keyword
+    # *) the shared object with the F_LOADONLY flag set, to really avoid
+    #    it being seen by the linker.
+    # At run time we better use the real file rather than another symlink,
+    # but for link time we create the symlink libNAME.so -> libNAME.so.V
+
+    case $with_aix_soname,$aix_use_runtimelinking in
+    # AIX (on Power*) has no versioning support, so currently we cannot hardcode correct
+    # soname into executable. Probably we can add versioning support to
+    # collect2, so additional links can be useful in future.
+    aix,yes) # traditional libtool
+      dynamic_linker='AIX unversionable lib.so'
+      # If using run time linking (on AIX 4.2 or later) use lib<name>.so
+      # instead of lib<name>.a to let people know that these are not
+      # typical AIX shared libraries.
+      library_names_spec='$libname$release$shared_ext$versuffix $libname$release$shared_ext$major $libname$shared_ext'
+      ;;
+    aix,no) # traditional AIX only
+      dynamic_linker='AIX lib.a[(]lib.so.V[)]'
+      # We preserve .a as extension for shared libraries through AIX4.2
+      # and later when we are not doing run time linking.
+      library_names_spec='$libname$release.a $libname.a'
+      soname_spec='$libname$release$shared_ext$major'
+      ;;
+    svr4,*) # full svr4 only
+      dynamic_linker="AIX lib.so.V[(]$shared_archive_member_spec.o[)]"
+      library_names_spec='$libname$release$shared_ext$major $libname$shared_ext'
+      # We do not specify a path in Import Files, so LIBPATH fires.
+      shlibpath_overrides_runpath=yes
+      ;;
+    *,yes) # both, prefer svr4
+      dynamic_linker="AIX lib.so.V[(]$shared_archive_member_spec.o[)], lib.a[(]lib.so.V[)]"
+      library_names_spec='$libname$release$shared_ext$major $libname$shared_ext'
+      # unpreferred sharedlib libNAME.a needs extra handling
+      postinstall_cmds='test -n "$linkname" || linkname="$realname"~func_stripname "" ".so" "$linkname"~$install_shared_prog "$dir/$func_stripname_result.$libext" "$destdir/$func_stripname_result.$libext"~test -z "$tstripme" || test -z "$striplib" || $striplib "$destdir/$func_stripname_result.$libext"'
+      postuninstall_cmds='for n in $library_names $old_library; do :; done~func_stripname "" ".so" "$n"~test "$func_stripname_result" = "$n" || func_append rmfiles " $odir/$func_stripname_result.$libext"'
+      # We do not specify a path in Import Files, so LIBPATH fires.
+      shlibpath_overrides_runpath=yes
+      ;;
+    *,no) # both, prefer aix
+      dynamic_linker="AIX lib.a[(]lib.so.V[)], lib.so.V[(]$shared_archive_member_spec.o[)]"
+      library_names_spec='$libname$release.a $libname.a'
+      soname_spec='$libname$release$shared_ext$major'
+      # unpreferred sharedlib libNAME.so.V and symlink libNAME.so need extra handling
+      postinstall_cmds='test -z "$dlname" || $install_shared_prog $dir/$dlname $destdir/$dlname~test -z "$tstripme" || test -z "$striplib" || $striplib $destdir/$dlname~test -n "$linkname" || linkname=$realname~func_stripname "" ".a" "$linkname"~(cd "$destdir" && $LN_S -f $dlname $func_stripname_result.so)'
+      postuninstall_cmds='test -z "$dlname" || func_append rmfiles " $odir/$dlname"~for n in $old_library $library_names; do :; done~func_stripname "" ".a" "$n"~func_append rmfiles " $odir/$func_stripname_result.so"'
+      ;;
+    esac
+    shlibpath_var=LIBPATH
+  fi
+  ;;
+
+amigaos*)
+  case $host_cpu in
+  powerpc)
+    # Since July 2007 AmigaOS4 officially supports .so libraries.
+    # When compiling the executable, add -use-dynld -Lsobjs: to the compileline.
+    library_names_spec='$libname$release$shared_ext$versuffix $libname$release$shared_ext$major $libname$shared_ext'
+    ;;
+  m68k)
+    library_names_spec='$libname.ixlibrary $libname.a'
+    # Create ${libname}_ixlibrary.a entries in /sys/libs.
+    finish_eval='for lib in `ls $libdir/*.ixlibrary 2>/dev/null`; do libname=`func_echo_all "$lib" | $SED '\''s%^.*/\([[^/]]*\)\.ixlibrary$%\1%'\''`; $RM /sys/libs/${libname}_ixlibrary.a; $show "cd /sys/libs && $LN_S $lib ${libname}_ixlibrary.a"; cd /sys/libs && $LN_S $lib ${libname}_ixlibrary.a || exit 1; done'
+    ;;
+  esac
+  ;;
+
+beos*)
+  library_names_spec='$libname$shared_ext'
+  dynamic_linker="$host_os ld.so"
+  shlibpath_var=LIBRARY_PATH
+  ;;
+
+bsdi[[45]]*)
+  version_type=linux # correct to gnu/linux during the next big refactor
+  need_version=no
+  library_names_spec='$libname$release$shared_ext$versuffix $libname$release$shared_ext$major $libname$shared_ext'
+  soname_spec='$libname$release$shared_ext$major'
+  finish_cmds='PATH="\$PATH:/sbin" ldconfig $libdir'
+  shlibpath_var=LD_LIBRARY_PATH
+  sys_lib_search_path_spec="/shlib /usr/lib /usr/X11/lib /usr/contrib/lib /lib /usr/local/lib"
+  sys_lib_dlsearch_path_spec="/shlib /usr/lib /usr/local/lib"
+  # the default ld.so.conf also contains /usr/contrib/lib and
+  # /usr/X11R6/lib (/usr/X11 is a link to /usr/X11R6), but let us allow
+  # libtool to hard-code these into programs
+  ;;
+
+cygwin* | mingw* | pw32* | cegcc*)
+  version_type=windows
+  shrext_cmds=.dll
+  need_version=no
+  need_lib_prefix=no
+
+  case $GCC,$cc_basename in
+  yes,*)
+    # gcc
+    library_names_spec='$libname.dll.a'
+    # DLL is installed to $(libdir)/../bin by postinstall_cmds
+    postinstall_cmds='base_file=`basename \$file`~
+      dlpath=`$SHELL 2>&1 -c '\''. $dir/'\''\$base_file'\''i; echo \$dlname'\''`~
+      dldir=$destdir/`dirname \$dlpath`~
+      test -d \$dldir || mkdir -p \$dldir~
+      $install_prog $dir/$dlname \$dldir/$dlname~
+      chmod a+x \$dldir/$dlname~
+      if test -n '\''$stripme'\'' && test -n '\''$striplib'\''; then
+        eval '\''$striplib \$dldir/$dlname'\'' || exit \$?;
+      fi'
+    postuninstall_cmds='dldll=`$SHELL 2>&1 -c '\''. $file; echo \$dlname'\''`~
+      dlpath=$dir/\$dldll~
+       $RM \$dlpath'
+    shlibpath_overrides_runpath=yes
+
+    case $host_os in
+    cygwin*)
+      # Cygwin DLLs use 'cyg' prefix rather than 'lib'
+      soname_spec='`echo $libname | sed -e 's/^lib/cyg/'``echo $release | $SED -e 's/[[.]]/-/g'`$versuffix$shared_ext'
+m4_if([$1], [],[
+      sys_lib_search_path_spec="$sys_lib_search_path_spec /usr/lib/w32api"])
+      ;;
+    mingw* | cegcc*)
+      # MinGW DLLs use traditional 'lib' prefix
+      soname_spec='$libname`echo $release | $SED -e 's/[[.]]/-/g'`$versuffix$shared_ext'
+      ;;
+    pw32*)
+      # pw32 DLLs use 'pw' prefix rather than 'lib'
+      library_names_spec='`echo $libname | sed -e 's/^lib/pw/'``echo $release | $SED -e 's/[[.]]/-/g'`$versuffix$shared_ext'
+      ;;
+    esac
+    dynamic_linker='Win32 ld.exe'
+    ;;
+
+  *,cl*)
+    # Native MSVC
+    libname_spec='$name'
+    soname_spec='$libname`echo $release | $SED -e 's/[[.]]/-/g'`$versuffix$shared_ext'
+    library_names_spec='$libname.dll.lib'
+
+    case $build_os in
+    mingw*)
+      sys_lib_search_path_spec=
+      lt_save_ifs=$IFS
+      IFS=';'
+      for lt_path in $LIB
+      do
+        IFS=$lt_save_ifs
+        # Let DOS variable expansion print the short 8.3 style file name.
+        lt_path=`cd "$lt_path" 2>/dev/null && cmd //C "for %i in (".") do @echo %~si"`
+        sys_lib_search_path_spec="$sys_lib_search_path_spec $lt_path"
+      done
+      IFS=$lt_save_ifs
+      # Convert to MSYS style.
+      sys_lib_search_path_spec=`$ECHO "$sys_lib_search_path_spec" | sed -e 's|\\\\|/|g' -e 's| \\([[a-zA-Z]]\\):| /\\1|g' -e 's|^ ||'`
+      ;;
+    cygwin*)
+      # Convert to unix form, then to dos form, then back to unix form
+      # but this time dos style (no spaces!) so that the unix form looks
+      # like /cygdrive/c/PROGRA~1:/cygdr...
+      sys_lib_search_path_spec=`cygpath --path --unix "$LIB"`
+      sys_lib_search_path_spec=`cygpath --path --dos "$sys_lib_search_path_spec" 2>/dev/null`
+      sys_lib_search_path_spec=`cygpath --path --unix "$sys_lib_search_path_spec" | $SED -e "s/$PATH_SEPARATOR/ /g"`
+      ;;
+    *)
+      sys_lib_search_path_spec=$LIB
+      if $ECHO "$sys_lib_search_path_spec" | [$GREP ';[c-zC-Z]:/' >/dev/null]; then
+        # It is most probably a Windows format PATH.
+        sys_lib_search_path_spec=`$ECHO "$sys_lib_search_path_spec" | $SED -e 's/;/ /g'`
+      else
+        sys_lib_search_path_spec=`$ECHO "$sys_lib_search_path_spec" | $SED -e "s/$PATH_SEPARATOR/ /g"`
+      fi
+      # FIXME: find the short name or the path components, as spaces are
+      # common. (e.g. "Program Files" -> "PROGRA~1")
+      ;;
+    esac
+
+    # DLL is installed to $(libdir)/../bin by postinstall_cmds
+    postinstall_cmds='base_file=`basename \$file`~
+      dlpath=`$SHELL 2>&1 -c '\''. $dir/'\''\$base_file'\''i; echo \$dlname'\''`~
+      dldir=$destdir/`dirname \$dlpath`~
+      test -d \$dldir || mkdir -p \$dldir~
+      $install_prog $dir/$dlname \$dldir/$dlname'
+    postuninstall_cmds='dldll=`$SHELL 2>&1 -c '\''. $file; echo \$dlname'\''`~
+      dlpath=$dir/\$dldll~
+       $RM \$dlpath'
+    shlibpath_overrides_runpath=yes
+    dynamic_linker='Win32 link.exe'
+    ;;
+
+  *)
+    # Assume MSVC wrapper
+    library_names_spec='$libname`echo $release | $SED -e 's/[[.]]/-/g'`$versuffix$shared_ext $libname.lib'
+    dynamic_linker='Win32 ld.exe'
+    ;;
+  esac
+  # FIXME: first we should search . and the directory the executable is in
+  shlibpath_var=PATH
+  ;;
+
+darwin* | rhapsody*)
+  dynamic_linker="$host_os dyld"
+  version_type=darwin
+  need_lib_prefix=no
+  need_version=no
+  library_names_spec='$libname$release$major$shared_ext $libname$shared_ext'
+  soname_spec='$libname$release$major$shared_ext'
+  shlibpath_overrides_runpath=yes
+  shlibpath_var=DYLD_LIBRARY_PATH
+  shrext_cmds='`test .$module = .yes && echo .so || echo .dylib`'
+m4_if([$1], [],[
+  sys_lib_search_path_spec="$sys_lib_search_path_spec /usr/local/lib"])
+  sys_lib_dlsearch_path_spec='/usr/local/lib /lib /usr/lib'
+  ;;
+
+dgux*)
+  version_type=linux # correct to gnu/linux during the next big refactor
+  need_lib_prefix=no
+  need_version=no
+  library_names_spec='$libname$release$shared_ext$versuffix $libname$release$shared_ext$major $libname$shared_ext'
+  soname_spec='$libname$release$shared_ext$major'
+  shlibpath_var=LD_LIBRARY_PATH
+  ;;
+
+freebsd* | dragonfly*)
+  # DragonFly does not have aout.  When/if they implement a new
+  # versioning mechanism, adjust this.
+  if test -x /usr/bin/objformat; then
+    objformat=`/usr/bin/objformat`
+  else
+    case $host_os in
+    freebsd[[23]].*) objformat=aout ;;
+    *) objformat=elf ;;
+    esac
+  fi
+  version_type=freebsd-$objformat
+  case $version_type in
+    freebsd-elf*)
+      library_names_spec='$libname$release$shared_ext$versuffix $libname$release$shared_ext$major $libname$shared_ext'
+      soname_spec='$libname$release$shared_ext$major'
+      need_version=no
+      need_lib_prefix=no
+      ;;
+    freebsd-*)
+      library_names_spec='$libname$release$shared_ext$versuffix $libname$shared_ext$versuffix'
+      need_version=yes
+      ;;
+  esac
+  shlibpath_var=LD_LIBRARY_PATH
+  case $host_os in
+  freebsd2.*)
+    shlibpath_overrides_runpath=yes
+    ;;
+  freebsd3.[[01]]* | freebsdelf3.[[01]]*)
+    shlibpath_overrides_runpath=yes
+    hardcode_into_libs=yes
+    ;;
+  freebsd3.[[2-9]]* | freebsdelf3.[[2-9]]* | \
+  freebsd4.[[0-5]] | freebsdelf4.[[0-5]] | freebsd4.1.1 | freebsdelf4.1.1)
+    shlibpath_overrides_runpath=no
+    hardcode_into_libs=yes
+    ;;
+  *) # from 4.6 on, and DragonFly
+    shlibpath_overrides_runpath=yes
+    hardcode_into_libs=yes
+    ;;
+  esac
+  ;;
+
+haiku*)
+  version_type=linux # correct to gnu/linux during the next big refactor
+  need_lib_prefix=no
+  need_version=no
+  dynamic_linker="$host_os runtime_loader"
+  library_names_spec='$libname$release$shared_ext$versuffix $libname$release$shared_ext$major $libname$shared_ext'
+  soname_spec='$libname$release$shared_ext$major'
+  shlibpath_var=LIBRARY_PATH
+  shlibpath_overrides_runpath=no
+  sys_lib_dlsearch_path_spec='/boot/home/config/lib /boot/common/lib /boot/system/lib'
+  hardcode_into_libs=yes
+  ;;
+
+hpux9* | hpux10* | hpux11*)
+  # Give a soname corresponding to the major version so that dld.sl refuses to
+  # link against other versions.
+  version_type=sunos
+  need_lib_prefix=no
+  need_version=no
+  case $host_cpu in
+  ia64*)
+    shrext_cmds='.so'
+    hardcode_into_libs=yes
+    dynamic_linker="$host_os dld.so"
+    shlibpath_var=LD_LIBRARY_PATH
+    shlibpath_overrides_runpath=yes # Unless +noenvvar is specified.
+    library_names_spec='$libname$release$shared_ext$versuffix $libname$release$shared_ext$major $libname$shared_ext'
+    soname_spec='$libname$release$shared_ext$major'
+    if test 32 = "$HPUX_IA64_MODE"; then
+      sys_lib_search_path_spec="/usr/lib/hpux32 /usr/local/lib/hpux32 /usr/local/lib"
+      sys_lib_dlsearch_path_spec=/usr/lib/hpux32
+    else
+      sys_lib_search_path_spec="/usr/lib/hpux64 /usr/local/lib/hpux64"
+      sys_lib_dlsearch_path_spec=/usr/lib/hpux64
+    fi
+    ;;
+  hppa*64*)
+    shrext_cmds='.sl'
+    hardcode_into_libs=yes
+    dynamic_linker="$host_os dld.sl"
+    shlibpath_var=LD_LIBRARY_PATH # How should we handle SHLIB_PATH
+    shlibpath_overrides_runpath=yes # Unless +noenvvar is specified.
+    library_names_spec='$libname$release$shared_ext$versuffix $libname$release$shared_ext$major $libname$shared_ext'
+    soname_spec='$libname$release$shared_ext$major'
+    sys_lib_search_path_spec="/usr/lib/pa20_64 /usr/ccs/lib/pa20_64"
+    sys_lib_dlsearch_path_spec=$sys_lib_search_path_spec
+    ;;
+  *)
+    shrext_cmds='.sl'
+    dynamic_linker="$host_os dld.sl"
+    shlibpath_var=SHLIB_PATH
+    shlibpath_overrides_runpath=no # +s is required to enable SHLIB_PATH
+    library_names_spec='$libname$release$shared_ext$versuffix $libname$release$shared_ext$major $libname$shared_ext'
+    soname_spec='$libname$release$shared_ext$major'
+    ;;
+  esac
+  # HP-UX runs *really* slowly unless shared libraries are mode 555, ...
+  postinstall_cmds='chmod 555 $lib'
+  # or fails outright, so override atomically:
+  install_override_mode=555
+  ;;
+
+interix[[3-9]]*)
+  version_type=linux # correct to gnu/linux during the next big refactor
+  need_lib_prefix=no
+  need_version=no
+  library_names_spec='$libname$release$shared_ext$versuffix $libname$release$shared_ext$major $libname$shared_ext'
+  soname_spec='$libname$release$shared_ext$major'
+  dynamic_linker='Interix 3.x ld.so.1 (PE, like ELF)'
+  shlibpath_var=LD_LIBRARY_PATH
+  shlibpath_overrides_runpath=no
+  hardcode_into_libs=yes
+  ;;
+
+irix5* | irix6* | nonstopux*)
+  case $host_os in
+    nonstopux*) version_type=nonstopux ;;
+    *)
+	if test yes = "$lt_cv_prog_gnu_ld"; then
+		version_type=linux # correct to gnu/linux during the next big refactor
+	else
+		version_type=irix
+	fi ;;
+  esac
+  need_lib_prefix=no
+  need_version=no
+  soname_spec='$libname$release$shared_ext$major'
+  library_names_spec='$libname$release$shared_ext$versuffix $libname$release$shared_ext$major $libname$release$shared_ext $libname$shared_ext'
+  case $host_os in
+  irix5* | nonstopux*)
+    libsuff= shlibsuff=
+    ;;
+  *)
+    case $LD in # libtool.m4 will add one of these switches to LD
+    *-32|*"-32 "|*-melf32bsmip|*"-melf32bsmip ")
+      libsuff= shlibsuff= libmagic=32-bit;;
+    *-n32|*"-n32 "|*-melf32bmipn32|*"-melf32bmipn32 ")
+      libsuff=32 shlibsuff=N32 libmagic=N32;;
+    *-64|*"-64 "|*-melf64bmip|*"-melf64bmip ")
+      libsuff=64 shlibsuff=64 libmagic=64-bit;;
+    *) libsuff= shlibsuff= libmagic=never-match;;
+    esac
+    ;;
+  esac
+  shlibpath_var=LD_LIBRARY${shlibsuff}_PATH
+  shlibpath_overrides_runpath=no
+  sys_lib_search_path_spec="/usr/lib$libsuff /lib$libsuff /usr/local/lib$libsuff"
+  sys_lib_dlsearch_path_spec="/usr/lib$libsuff /lib$libsuff"
+  hardcode_into_libs=yes
+  ;;
+
+# No shared lib support for Linux oldld, aout, or coff.
+linux*oldld* | linux*aout* | linux*coff*)
+  dynamic_linker=no
+  ;;
+
+linux*android*)
+  version_type=none # Android doesn't support versioned libraries.
+  need_lib_prefix=no
+  need_version=no
+  library_names_spec='$libname$release$shared_ext'
+  soname_spec='$libname$release$shared_ext'
+  finish_cmds=
+  shlibpath_var=LD_LIBRARY_PATH
+  shlibpath_overrides_runpath=yes
+
+  # This implies no fast_install, which is unacceptable.
+  # Some rework will be needed to allow for fast_install
+  # before this can be enabled.
+  hardcode_into_libs=yes
+
+  dynamic_linker='Android linker'
+  # Don't embed -rpath directories since the linker doesn't support them.
+  _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='-L$libdir'
+  ;;
+
+# This must be glibc/ELF.
+linux* | k*bsd*-gnu | kopensolaris*-gnu | gnu*)
+  version_type=linux # correct to gnu/linux during the next big refactor
+  need_lib_prefix=no
+  need_version=no
+  library_names_spec='$libname$release$shared_ext$versuffix $libname$release$shared_ext$major $libname$shared_ext'
+  soname_spec='$libname$release$shared_ext$major'
+  finish_cmds='PATH="\$PATH:/sbin" ldconfig -n $libdir'
+  shlibpath_var=LD_LIBRARY_PATH
+  shlibpath_overrides_runpath=no
+
+  # Some binutils ld are patched to set DT_RUNPATH
+  AC_CACHE_VAL([lt_cv_shlibpath_overrides_runpath],
+    [lt_cv_shlibpath_overrides_runpath=no
+    save_LDFLAGS=$LDFLAGS
+    save_libdir=$libdir
+    eval "libdir=/foo; wl=\"$_LT_TAGVAR(lt_prog_compiler_wl, $1)\"; \
+	 LDFLAGS=\"\$LDFLAGS $_LT_TAGVAR(hardcode_libdir_flag_spec, $1)\""
+    AC_LINK_IFELSE([AC_LANG_PROGRAM([],[])],
+      [AS_IF([ ($OBJDUMP -p conftest$ac_exeext) 2>/dev/null | grep "RUNPATH.*$libdir" >/dev/null],
+	 [lt_cv_shlibpath_overrides_runpath=yes])])
+    LDFLAGS=$save_LDFLAGS
+    libdir=$save_libdir
+    ])
+  shlibpath_overrides_runpath=$lt_cv_shlibpath_overrides_runpath
+
+  # This implies no fast_install, which is unacceptable.
+  # Some rework will be needed to allow for fast_install
+  # before this can be enabled.
+  hardcode_into_libs=yes
+
+  # Add ABI-specific directories to the system library path.
+  sys_lib_dlsearch_path_spec="/lib64 /usr/lib64 /lib /usr/lib"
+
+  # Ideally, we could use ldconfig to report *all* directores which are
+  # searched for libraries, however this is still not possible.  Aside from not
+  # being certain /sbin/ldconfig is available, command
+  # 'ldconfig -N -X -v | grep ^/' on 64bit Fedora does not report /usr/lib64,
+  # even though it is searched at run-time.  Try to do the best guess by
+  # appending ld.so.conf contents (and includes) to the search path.
+  if test -f /etc/ld.so.conf; then
+    lt_ld_extra=`awk '/^include / { system(sprintf("cd /etc; cat %s 2>/dev/null", \[$]2)); skip = 1; } { if (!skip) print \[$]0; skip = 0; }' < /etc/ld.so.conf | $SED -e 's/#.*//;/^[	 ]*hwcap[	 ]/d;s/[:,	]/ /g;s/=[^=]*$//;s/=[^= ]* / /g;s/"//g;/^$/d' | tr '\n' ' '`
+    sys_lib_dlsearch_path_spec="$sys_lib_dlsearch_path_spec $lt_ld_extra"
+  fi
+
+  # We used to test for /lib/ld.so.1 and disable shared libraries on
+  # powerpc, because MkLinux only supported shared libraries with the
+  # GNU dynamic linker.  Since this was broken with cross compilers,
+  # most powerpc-linux boxes support dynamic linking these days and
+  # people can always --disable-shared, the test was removed, and we
+  # assume the GNU/Linux dynamic linker is in use.
+  dynamic_linker='GNU/Linux ld.so'
+  ;;
+
+netbsd*)
+  version_type=sunos
+  need_lib_prefix=no
+  need_version=no
+  if echo __ELF__ | $CC -E - | $GREP __ELF__ >/dev/null; then
+    library_names_spec='$libname$release$shared_ext$versuffix $libname$shared_ext$versuffix'
+    finish_cmds='PATH="\$PATH:/sbin" ldconfig -m $libdir'
+    dynamic_linker='NetBSD (a.out) ld.so'
+  else
+    library_names_spec='$libname$release$shared_ext$versuffix $libname$release$shared_ext$major $libname$shared_ext'
+    soname_spec='$libname$release$shared_ext$major'
+    dynamic_linker='NetBSD ld.elf_so'
+  fi
+  shlibpath_var=LD_LIBRARY_PATH
+  shlibpath_overrides_runpath=yes
+  hardcode_into_libs=yes
+  ;;
+
+newsos6)
+  version_type=linux # correct to gnu/linux during the next big refactor
+  library_names_spec='$libname$release$shared_ext$versuffix $libname$release$shared_ext$major $libname$shared_ext'
+  shlibpath_var=LD_LIBRARY_PATH
+  shlibpath_overrides_runpath=yes
+  ;;
+
+*nto* | *qnx*)
+  version_type=qnx
+  need_lib_prefix=no
+  need_version=no
+  library_names_spec='$libname$release$shared_ext$versuffix $libname$release$shared_ext$major $libname$shared_ext'
+  soname_spec='$libname$release$shared_ext$major'
+  shlibpath_var=LD_LIBRARY_PATH
+  shlibpath_overrides_runpath=no
+  hardcode_into_libs=yes
+  dynamic_linker='ldqnx.so'
+  ;;
+
+openbsd* | bitrig*)
+  version_type=sunos
+  sys_lib_dlsearch_path_spec=/usr/lib
+  need_lib_prefix=no
+  if test -z "`echo __ELF__ | $CC -E - | $GREP __ELF__`"; then
+    need_version=no
+  else
+    need_version=yes
+  fi
+  library_names_spec='$libname$release$shared_ext$versuffix $libname$shared_ext$versuffix'
+  finish_cmds='PATH="\$PATH:/sbin" ldconfig -m $libdir'
+  shlibpath_var=LD_LIBRARY_PATH
+  shlibpath_overrides_runpath=yes
+  ;;
+
+os2*)
+  libname_spec='$name'
+  version_type=windows
+  shrext_cmds=.dll
+  need_version=no
+  need_lib_prefix=no
+  # OS/2 can only load a DLL with a base name of 8 characters or less.
+  soname_spec='`test -n "$os2dllname" && libname="$os2dllname";
+    v=$($ECHO $release$versuffix | tr -d .-);
+    n=$($ECHO $libname | cut -b -$((8 - ${#v})) | tr . _);
+    $ECHO $n$v`$shared_ext'
+  library_names_spec='${libname}_dll.$libext'
+  dynamic_linker='OS/2 ld.exe'
+  shlibpath_var=BEGINLIBPATH
+  sys_lib_search_path_spec="/lib /usr/lib /usr/local/lib"
+  sys_lib_dlsearch_path_spec=$sys_lib_search_path_spec
+  postinstall_cmds='base_file=`basename \$file`~
+    dlpath=`$SHELL 2>&1 -c '\''. $dir/'\''\$base_file'\''i; $ECHO \$dlname'\''`~
+    dldir=$destdir/`dirname \$dlpath`~
+    test -d \$dldir || mkdir -p \$dldir~
+    $install_prog $dir/$dlname \$dldir/$dlname~
+    chmod a+x \$dldir/$dlname~
+    if test -n '\''$stripme'\'' && test -n '\''$striplib'\''; then
+      eval '\''$striplib \$dldir/$dlname'\'' || exit \$?;
+    fi'
+  postuninstall_cmds='dldll=`$SHELL 2>&1 -c '\''. $file; $ECHO \$dlname'\''`~
+    dlpath=$dir/\$dldll~
+    $RM \$dlpath'
+  ;;
+
+osf3* | osf4* | osf5*)
+  version_type=osf
+  need_lib_prefix=no
+  need_version=no
+  soname_spec='$libname$release$shared_ext$major'
+  library_names_spec='$libname$release$shared_ext$versuffix $libname$release$shared_ext$major $libname$shared_ext'
+  shlibpath_var=LD_LIBRARY_PATH
+  sys_lib_search_path_spec="/usr/shlib /usr/ccs/lib /usr/lib/cmplrs/cc /usr/lib /usr/local/lib /var/shlib"
+  sys_lib_dlsearch_path_spec=$sys_lib_search_path_spec
+  ;;
+
+rdos*)
+  dynamic_linker=no
+  ;;
+
+solaris*)
+  version_type=linux # correct to gnu/linux during the next big refactor
+  need_lib_prefix=no
+  need_version=no
+  library_names_spec='$libname$release$shared_ext$versuffix $libname$release$shared_ext$major $libname$shared_ext'
+  soname_spec='$libname$release$shared_ext$major'
+  shlibpath_var=LD_LIBRARY_PATH
+  shlibpath_overrides_runpath=yes
+  hardcode_into_libs=yes
+  # ldd complains unless libraries are executable
+  postinstall_cmds='chmod +x $lib'
+  ;;
+
+sunos4*)
+  version_type=sunos
+  library_names_spec='$libname$release$shared_ext$versuffix $libname$shared_ext$versuffix'
+  finish_cmds='PATH="\$PATH:/usr/etc" ldconfig $libdir'
+  shlibpath_var=LD_LIBRARY_PATH
+  shlibpath_overrides_runpath=yes
+  if test yes = "$with_gnu_ld"; then
+    need_lib_prefix=no
+  fi
+  need_version=yes
+  ;;
+
+sysv4 | sysv4.3*)
+  version_type=linux # correct to gnu/linux during the next big refactor
+  library_names_spec='$libname$release$shared_ext$versuffix $libname$release$shared_ext$major $libname$shared_ext'
+  soname_spec='$libname$release$shared_ext$major'
+  shlibpath_var=LD_LIBRARY_PATH
+  case $host_vendor in
+    sni)
+      shlibpath_overrides_runpath=no
+      need_lib_prefix=no
+      runpath_var=LD_RUN_PATH
+      ;;
+    siemens)
+      need_lib_prefix=no
+      ;;
+    motorola)
+      need_lib_prefix=no
+      need_version=no
+      shlibpath_overrides_runpath=no
+      sys_lib_search_path_spec='/lib /usr/lib /usr/ccs/lib'
+      ;;
+  esac
+  ;;
+
+sysv4*MP*)
+  if test -d /usr/nec; then
+    version_type=linux # correct to gnu/linux during the next big refactor
+    library_names_spec='$libname$shared_ext.$versuffix $libname$shared_ext.$major $libname$shared_ext'
+    soname_spec='$libname$shared_ext.$major'
+    shlibpath_var=LD_LIBRARY_PATH
+  fi
+  ;;
+
+sysv5* | sco3.2v5* | sco5v6* | unixware* | OpenUNIX* | sysv4*uw2*)
+  version_type=sco
+  need_lib_prefix=no
+  need_version=no
+  library_names_spec='$libname$release$shared_ext$versuffix $libname$release$shared_ext $libname$shared_ext'
+  soname_spec='$libname$release$shared_ext$major'
+  shlibpath_var=LD_LIBRARY_PATH
+  shlibpath_overrides_runpath=yes
+  hardcode_into_libs=yes
+  if test yes = "$with_gnu_ld"; then
+    sys_lib_search_path_spec='/usr/local/lib /usr/gnu/lib /usr/ccs/lib /usr/lib /lib'
+  else
+    sys_lib_search_path_spec='/usr/ccs/lib /usr/lib'
+    case $host_os in
+      sco3.2v5*)
+        sys_lib_search_path_spec="$sys_lib_search_path_spec /lib"
+	;;
+    esac
+  fi
+  sys_lib_dlsearch_path_spec='/usr/lib'
+  ;;
+
+tpf*)
+  # TPF is a cross-target only.  Preferred cross-host = GNU/Linux.
+  version_type=linux # correct to gnu/linux during the next big refactor
+  need_lib_prefix=no
+  need_version=no
+  library_names_spec='$libname$release$shared_ext$versuffix $libname$release$shared_ext$major $libname$shared_ext'
+  shlibpath_var=LD_LIBRARY_PATH
+  shlibpath_overrides_runpath=no
+  hardcode_into_libs=yes
+  ;;
+
+uts4*)
+  version_type=linux # correct to gnu/linux during the next big refactor
+  library_names_spec='$libname$release$shared_ext$versuffix $libname$release$shared_ext$major $libname$shared_ext'
+  soname_spec='$libname$release$shared_ext$major'
+  shlibpath_var=LD_LIBRARY_PATH
+  ;;
+
+*)
+  dynamic_linker=no
+  ;;
+esac
+AC_MSG_RESULT([$dynamic_linker])
+test no = "$dynamic_linker" && can_build_shared=no
+
+variables_saved_for_relink="PATH $shlibpath_var $runpath_var"
+if test yes = "$GCC"; then
+  variables_saved_for_relink="$variables_saved_for_relink GCC_EXEC_PREFIX COMPILER_PATH LIBRARY_PATH"
+fi
+
+if test set = "${lt_cv_sys_lib_search_path_spec+set}"; then
+  sys_lib_search_path_spec=$lt_cv_sys_lib_search_path_spec
+fi
+
+if test set = "${lt_cv_sys_lib_dlsearch_path_spec+set}"; then
+  sys_lib_dlsearch_path_spec=$lt_cv_sys_lib_dlsearch_path_spec
+fi
+
+# remember unaugmented sys_lib_dlsearch_path content for libtool script decls...
+configure_time_dlsearch_path=$sys_lib_dlsearch_path_spec
+
+# ... but it needs LT_SYS_LIBRARY_PATH munging for other configure-time code
+func_munge_path_list sys_lib_dlsearch_path_spec "$LT_SYS_LIBRARY_PATH"
+
+# to be used as default LT_SYS_LIBRARY_PATH value in generated libtool
+configure_time_lt_sys_library_path=$LT_SYS_LIBRARY_PATH
+
+_LT_DECL([], [variables_saved_for_relink], [1],
+    [Variables whose values should be saved in libtool wrapper scripts and
+    restored at link time])
+_LT_DECL([], [need_lib_prefix], [0],
+    [Do we need the "lib" prefix for modules?])
+_LT_DECL([], [need_version], [0], [Do we need a version for libraries?])
+_LT_DECL([], [version_type], [0], [Library versioning type])
+_LT_DECL([], [runpath_var], [0],  [Shared library runtime path variable])
+_LT_DECL([], [shlibpath_var], [0],[Shared library path variable])
+_LT_DECL([], [shlibpath_overrides_runpath], [0],
+    [Is shlibpath searched before the hard-coded library search path?])
+_LT_DECL([], [libname_spec], [1], [Format of library name prefix])
+_LT_DECL([], [library_names_spec], [1],
+    [[List of archive names.  First name is the real one, the rest are links.
+    The last name is the one that the linker finds with -lNAME]])
+_LT_DECL([], [soname_spec], [1],
+    [[The coded name of the library, if different from the real name]])
+_LT_DECL([], [install_override_mode], [1],
+    [Permission mode override for installation of shared libraries])
+_LT_DECL([], [postinstall_cmds], [2],
+    [Command to use after installation of a shared archive])
+_LT_DECL([], [postuninstall_cmds], [2],
+    [Command to use after uninstallation of a shared archive])
+_LT_DECL([], [finish_cmds], [2],
+    [Commands used to finish a libtool library installation in a directory])
+_LT_DECL([], [finish_eval], [1],
+    [[As "finish_cmds", except a single script fragment to be evaled but
+    not shown]])
+_LT_DECL([], [hardcode_into_libs], [0],
+    [Whether we should hardcode library paths into libraries])
+_LT_DECL([], [sys_lib_search_path_spec], [2],
+    [Compile-time system search path for libraries])
+_LT_DECL([sys_lib_dlsearch_path_spec], [configure_time_dlsearch_path], [2],
+    [Detected run-time system search path for libraries])
+_LT_DECL([], [configure_time_lt_sys_library_path], [2],
+    [Explicit LT_SYS_LIBRARY_PATH set during ./configure time])
+])# _LT_SYS_DYNAMIC_LINKER
+
+
+# _LT_PATH_TOOL_PREFIX(TOOL)
+# --------------------------
+# find a file program that can recognize shared library
+AC_DEFUN([_LT_PATH_TOOL_PREFIX],
+[m4_require([_LT_DECL_EGREP])dnl
+AC_MSG_CHECKING([for $1])
+AC_CACHE_VAL(lt_cv_path_MAGIC_CMD,
+[case $MAGIC_CMD in
+[[\\/*] |  ?:[\\/]*])
+  lt_cv_path_MAGIC_CMD=$MAGIC_CMD # Let the user override the test with a path.
+  ;;
+*)
+  lt_save_MAGIC_CMD=$MAGIC_CMD
+  lt_save_ifs=$IFS; IFS=$PATH_SEPARATOR
+dnl $ac_dummy forces splitting on constant user-supplied paths.
+dnl POSIX.2 word splitting is done only on the output of word expansions,
+dnl not every word.  This closes a longstanding sh security hole.
+  ac_dummy="m4_if([$2], , $PATH, [$2])"
+  for ac_dir in $ac_dummy; do
+    IFS=$lt_save_ifs
+    test -z "$ac_dir" && ac_dir=.
+    if test -f "$ac_dir/$1"; then
+      lt_cv_path_MAGIC_CMD=$ac_dir/"$1"
+      if test -n "$file_magic_test_file"; then
+	case $deplibs_check_method in
+	"file_magic "*)
+	  file_magic_regex=`expr "$deplibs_check_method" : "file_magic \(.*\)"`
+	  MAGIC_CMD=$lt_cv_path_MAGIC_CMD
+	  if eval $file_magic_cmd \$file_magic_test_file 2> /dev/null |
+	    $EGREP "$file_magic_regex" > /dev/null; then
+	    :
+	  else
+	    cat <<_LT_EOF 1>&2
+
+*** Warning: the command libtool uses to detect shared libraries,
+*** $file_magic_cmd, produces output that libtool cannot recognize.
+*** The result is that libtool may fail to recognize shared libraries
+*** as such.  This will affect the creation of libtool libraries that
+*** depend on shared libraries, but programs linked with such libtool
+*** libraries will work regardless of this problem.  Nevertheless, you
+*** may want to report the problem to your system manager and/or to
+*** bug-libtool@gnu.org
+
+_LT_EOF
+	  fi ;;
+	esac
+      fi
+      break
+    fi
+  done
+  IFS=$lt_save_ifs
+  MAGIC_CMD=$lt_save_MAGIC_CMD
+  ;;
+esac])
+MAGIC_CMD=$lt_cv_path_MAGIC_CMD
+if test -n "$MAGIC_CMD"; then
+  AC_MSG_RESULT($MAGIC_CMD)
+else
+  AC_MSG_RESULT(no)
+fi
+_LT_DECL([], [MAGIC_CMD], [0],
+	 [Used to examine libraries when file_magic_cmd begins with "file"])dnl
+])# _LT_PATH_TOOL_PREFIX
+
+# Old name:
+AU_ALIAS([AC_PATH_TOOL_PREFIX], [_LT_PATH_TOOL_PREFIX])
+dnl aclocal-1.4 backwards compatibility:
+dnl AC_DEFUN([AC_PATH_TOOL_PREFIX], [])
+
+
+# _LT_PATH_MAGIC
+# --------------
+# find a file program that can recognize a shared library
+m4_defun([_LT_PATH_MAGIC],
+[_LT_PATH_TOOL_PREFIX(${ac_tool_prefix}file, /usr/bin$PATH_SEPARATOR$PATH)
+if test -z "$lt_cv_path_MAGIC_CMD"; then
+  if test -n "$ac_tool_prefix"; then
+    _LT_PATH_TOOL_PREFIX(file, /usr/bin$PATH_SEPARATOR$PATH)
+  else
+    MAGIC_CMD=:
+  fi
+fi
+])# _LT_PATH_MAGIC
+
+
+# LT_PATH_LD
+# ----------
+# find the pathname to the GNU or non-GNU linker
+AC_DEFUN([LT_PATH_LD],
+[AC_REQUIRE([AC_PROG_CC])dnl
+AC_REQUIRE([AC_CANONICAL_HOST])dnl
+AC_REQUIRE([AC_CANONICAL_BUILD])dnl
+m4_require([_LT_DECL_SED])dnl
+m4_require([_LT_DECL_EGREP])dnl
+m4_require([_LT_PROG_ECHO_BACKSLASH])dnl
+
+AC_ARG_WITH([gnu-ld],
+    [AS_HELP_STRING([--with-gnu-ld],
+	[assume the C compiler uses GNU ld @<:@default=no@:>@])],
+    [test no = "$withval" || with_gnu_ld=yes],
+    [with_gnu_ld=no])dnl
+
+ac_prog=ld
+if test yes = "$GCC"; then
+  # Check if gcc -print-prog-name=ld gives a path.
+  AC_MSG_CHECKING([for ld used by $CC])
+  case $host in
+  *-*-mingw*)
+    # gcc leaves a trailing carriage return, which upsets mingw
+    ac_prog=`($CC -print-prog-name=ld) 2>&5 | tr -d '\015'` ;;
+  *)
+    ac_prog=`($CC -print-prog-name=ld) 2>&5` ;;
+  esac
+  case $ac_prog in
+    # Accept absolute paths.
+    [[\\/]]* | ?:[[\\/]]*)
+      re_direlt='/[[^/]][[^/]]*/\.\./'
+      # Canonicalize the pathname of ld
+      ac_prog=`$ECHO "$ac_prog"| $SED 's%\\\\%/%g'`
+      while $ECHO "$ac_prog" | $GREP "$re_direlt" > /dev/null 2>&1; do
+	ac_prog=`$ECHO $ac_prog| $SED "s%$re_direlt%/%"`
+      done
+      test -z "$LD" && LD=$ac_prog
+      ;;
+  "")
+    # If it fails, then pretend we aren't using GCC.
+    ac_prog=ld
+    ;;
+  *)
+    # If it is relative, then search for the first ld in PATH.
+    with_gnu_ld=unknown
+    ;;
+  esac
+elif test yes = "$with_gnu_ld"; then
+  AC_MSG_CHECKING([for GNU ld])
+else
+  AC_MSG_CHECKING([for non-GNU ld])
+fi
+AC_CACHE_VAL(lt_cv_path_LD,
+[if test -z "$LD"; then
+  lt_save_ifs=$IFS; IFS=$PATH_SEPARATOR
+  for ac_dir in $PATH; do
+    IFS=$lt_save_ifs
+    test -z "$ac_dir" && ac_dir=.
+    if test -f "$ac_dir/$ac_prog" || test -f "$ac_dir/$ac_prog$ac_exeext"; then
+      lt_cv_path_LD=$ac_dir/$ac_prog
+      # Check to see if the program is GNU ld.  I'd rather use --version,
+      # but apparently some variants of GNU ld only accept -v.
+      # Break only if it was the GNU/non-GNU ld that we prefer.
+      case `"$lt_cv_path_LD" -v 2>&1 </dev/null` in
+      *GNU* | *'with BFD'*)
+	test no != "$with_gnu_ld" && break
+	;;
+      *)
+	test yes != "$with_gnu_ld" && break
+	;;
+      esac
+    fi
+  done
+  IFS=$lt_save_ifs
+else
+  lt_cv_path_LD=$LD # Let the user override the test with a path.
+fi])
+LD=$lt_cv_path_LD
+if test -n "$LD"; then
+  AC_MSG_RESULT($LD)
+else
+  AC_MSG_RESULT(no)
+fi
+test -z "$LD" && AC_MSG_ERROR([no acceptable ld found in \$PATH])
+_LT_PATH_LD_GNU
+AC_SUBST([LD])
+
+_LT_TAGDECL([], [LD], [1], [The linker used to build libraries])
+])# LT_PATH_LD
+
+# Old names:
+AU_ALIAS([AM_PROG_LD], [LT_PATH_LD])
+AU_ALIAS([AC_PROG_LD], [LT_PATH_LD])
+dnl aclocal-1.4 backwards compatibility:
+dnl AC_DEFUN([AM_PROG_LD], [])
+dnl AC_DEFUN([AC_PROG_LD], [])
+
+
+# _LT_PATH_LD_GNU
+#- --------------
+m4_defun([_LT_PATH_LD_GNU],
+[AC_CACHE_CHECK([if the linker ($LD) is GNU ld], lt_cv_prog_gnu_ld,
+[# I'd rather use --version here, but apparently some GNU lds only accept -v.
+case `$LD -v 2>&1 </dev/null` in
+*GNU* | *'with BFD'*)
+  lt_cv_prog_gnu_ld=yes
+  ;;
+*)
+  lt_cv_prog_gnu_ld=no
+  ;;
+esac])
+with_gnu_ld=$lt_cv_prog_gnu_ld
+])# _LT_PATH_LD_GNU
+
+
+# _LT_CMD_RELOAD
+# --------------
+# find reload flag for linker
+#   -- PORTME Some linkers may need a different reload flag.
+m4_defun([_LT_CMD_RELOAD],
+[AC_CACHE_CHECK([for $LD option to reload object files],
+  lt_cv_ld_reload_flag,
+  [lt_cv_ld_reload_flag='-r'])
+reload_flag=$lt_cv_ld_reload_flag
+case $reload_flag in
+"" | " "*) ;;
+*) reload_flag=" $reload_flag" ;;
+esac
+reload_cmds='$LD$reload_flag -o $output$reload_objs'
+case $host_os in
+  cygwin* | mingw* | pw32* | cegcc*)
+    if test yes != "$GCC"; then
+      reload_cmds=false
+    fi
+    ;;
+  darwin*)
+    if test yes = "$GCC"; then
+      reload_cmds='$LTCC $LTCFLAGS -nostdlib $wl-r -o $output$reload_objs'
+    else
+      reload_cmds='$LD$reload_flag -o $output$reload_objs'
+    fi
+    ;;
+esac
+_LT_TAGDECL([], [reload_flag], [1], [How to create reloadable object files])dnl
+_LT_TAGDECL([], [reload_cmds], [2])dnl
+])# _LT_CMD_RELOAD
+
+
+# _LT_PATH_DD
+# -----------
+# find a working dd
+m4_defun([_LT_PATH_DD],
+[AC_CACHE_CHECK([for a working dd], [ac_cv_path_lt_DD],
+[printf 0123456789abcdef0123456789abcdef >conftest.i
+cat conftest.i conftest.i >conftest2.i
+: ${lt_DD:=$DD}
+AC_PATH_PROGS_FEATURE_CHECK([lt_DD], [dd],
+[if "$ac_path_lt_DD" bs=32 count=1 <conftest2.i >conftest.out 2>/dev/null; then
+  cmp -s conftest.i conftest.out \
+  && ac_cv_path_lt_DD="$ac_path_lt_DD" ac_path_lt_DD_found=:
+fi])
+rm -f conftest.i conftest2.i conftest.out])
+])# _LT_PATH_DD
+
+
+# _LT_CMD_TRUNCATE
+# ----------------
+# find command to truncate a binary pipe
+m4_defun([_LT_CMD_TRUNCATE],
+[m4_require([_LT_PATH_DD])
+AC_CACHE_CHECK([how to truncate binary pipes], [lt_cv_truncate_bin],
+[printf 0123456789abcdef0123456789abcdef >conftest.i
+cat conftest.i conftest.i >conftest2.i
+lt_cv_truncate_bin=
+if "$ac_cv_path_lt_DD" bs=32 count=1 <conftest2.i >conftest.out 2>/dev/null; then
+  cmp -s conftest.i conftest.out \
+  && lt_cv_truncate_bin="$ac_cv_path_lt_DD bs=4096 count=1"
+fi
+rm -f conftest.i conftest2.i conftest.out
+test -z "$lt_cv_truncate_bin" && lt_cv_truncate_bin="$SED -e 4q"])
+_LT_DECL([lt_truncate_bin], [lt_cv_truncate_bin], [1],
+  [Command to truncate a binary pipe])
+])# _LT_CMD_TRUNCATE
+
+
+# _LT_CHECK_MAGIC_METHOD
+# ----------------------
+# how to check for library dependencies
+#  -- PORTME fill in with the dynamic library characteristics
+m4_defun([_LT_CHECK_MAGIC_METHOD],
+[m4_require([_LT_DECL_EGREP])
+m4_require([_LT_DECL_OBJDUMP])
+AC_CACHE_CHECK([how to recognize dependent libraries],
+lt_cv_deplibs_check_method,
+[lt_cv_file_magic_cmd='$MAGIC_CMD'
+lt_cv_file_magic_test_file=
+lt_cv_deplibs_check_method='unknown'
+# Need to set the preceding variable on all platforms that support
+# interlibrary dependencies.
+# 'none' -- dependencies not supported.
+# 'unknown' -- same as none, but documents that we really don't know.
+# 'pass_all' -- all dependencies passed with no checks.
+# 'test_compile' -- check by making test program.
+# 'file_magic [[regex]]' -- check by looking for files in library path
+# that responds to the $file_magic_cmd with a given extended regex.
+# If you have 'file' or equivalent on your system and you're not sure
+# whether 'pass_all' will *always* work, you probably want this one.
+
+case $host_os in
+aix[[4-9]]*)
+  lt_cv_deplibs_check_method=pass_all
+  ;;
+
+beos*)
+  lt_cv_deplibs_check_method=pass_all
+  ;;
+
+bsdi[[45]]*)
+  lt_cv_deplibs_check_method='file_magic ELF [[0-9]][[0-9]]*-bit [[ML]]SB (shared object|dynamic lib)'
+  lt_cv_file_magic_cmd='/usr/bin/file -L'
+  lt_cv_file_magic_test_file=/shlib/libc.so
+  ;;
+
+cygwin*)
+  # func_win32_libid is a shell function defined in ltmain.sh
+  lt_cv_deplibs_check_method='file_magic ^x86 archive import|^x86 DLL'
+  lt_cv_file_magic_cmd='func_win32_libid'
+  ;;
+
+mingw* | pw32*)
+  # Base MSYS/MinGW do not provide the 'file' command needed by
+  # func_win32_libid shell function, so use a weaker test based on 'objdump',
+  # unless we find 'file', for example because we are cross-compiling.
+  if ( file / ) >/dev/null 2>&1; then
+    lt_cv_deplibs_check_method='file_magic ^x86 archive import|^x86 DLL'
+    lt_cv_file_magic_cmd='func_win32_libid'
+  else
+    # Keep this pattern in sync with the one in func_win32_libid.
+    lt_cv_deplibs_check_method='file_magic file format (pei*-i386(.*architecture: i386)?|pe-arm-wince|pe-x86-64)'
+    lt_cv_file_magic_cmd='$OBJDUMP -f'
+  fi
+  ;;
+
+cegcc*)
+  # use the weaker test based on 'objdump'. See mingw*.
+  lt_cv_deplibs_check_method='file_magic file format pe-arm-.*little(.*architecture: arm)?'
+  lt_cv_file_magic_cmd='$OBJDUMP -f'
+  ;;
+
+darwin* | rhapsody*)
+  lt_cv_deplibs_check_method=pass_all
+  ;;
+
+freebsd* | dragonfly*)
+  if echo __ELF__ | $CC -E - | $GREP __ELF__ > /dev/null; then
+    case $host_cpu in
+    i*86 )
+      # Not sure whether the presence of OpenBSD here was a mistake.
+      # Let's accept both of them until this is cleared up.
+      lt_cv_deplibs_check_method='file_magic (FreeBSD|OpenBSD|DragonFly)/i[[3-9]]86 (compact )?demand paged shared library'
+      lt_cv_file_magic_cmd=/usr/bin/file
+      lt_cv_file_magic_test_file=`echo /usr/lib/libc.so.*`
+      ;;
+    esac
+  else
+    lt_cv_deplibs_check_method=pass_all
+  fi
+  ;;
+
+haiku*)
+  lt_cv_deplibs_check_method=pass_all
+  ;;
+
+hpux10.20* | hpux11*)
+  lt_cv_file_magic_cmd=/usr/bin/file
+  case $host_cpu in
+  ia64*)
+    lt_cv_deplibs_check_method='file_magic (s[[0-9]][[0-9]][[0-9]]|ELF-[[0-9]][[0-9]]) shared object file - IA64'
+    lt_cv_file_magic_test_file=/usr/lib/hpux32/libc.so
+    ;;
+  hppa*64*)
+    [lt_cv_deplibs_check_method='file_magic (s[0-9][0-9][0-9]|ELF[ -][0-9][0-9])(-bit)?( [LM]SB)? shared object( file)?[, -]* PA-RISC [0-9]\.[0-9]']
+    lt_cv_file_magic_test_file=/usr/lib/pa20_64/libc.sl
+    ;;
+  *)
+    lt_cv_deplibs_check_method='file_magic (s[[0-9]][[0-9]][[0-9]]|PA-RISC[[0-9]]\.[[0-9]]) shared library'
+    lt_cv_file_magic_test_file=/usr/lib/libc.sl
+    ;;
+  esac
+  ;;
+
+interix[[3-9]]*)
+  # PIC code is broken on Interix 3.x, that's why |\.a not |_pic\.a here
+  lt_cv_deplibs_check_method='match_pattern /lib[[^/]]+(\.so|\.a)$'
+  ;;
+
+irix5* | irix6* | nonstopux*)
+  case $LD in
+  *-32|*"-32 ") libmagic=32-bit;;
+  *-n32|*"-n32 ") libmagic=N32;;
+  *-64|*"-64 ") libmagic=64-bit;;
+  *) libmagic=never-match;;
+  esac
+  lt_cv_deplibs_check_method=pass_all
+  ;;
+
+# This must be glibc/ELF.
+linux* | k*bsd*-gnu | kopensolaris*-gnu | gnu*)
+  lt_cv_deplibs_check_method=pass_all
+  ;;
+
+netbsd*)
+  if echo __ELF__ | $CC -E - | $GREP __ELF__ > /dev/null; then
+    lt_cv_deplibs_check_method='match_pattern /lib[[^/]]+(\.so\.[[0-9]]+\.[[0-9]]+|_pic\.a)$'
+  else
+    lt_cv_deplibs_check_method='match_pattern /lib[[^/]]+(\.so|_pic\.a)$'
+  fi
+  ;;
+
+newos6*)
+  lt_cv_deplibs_check_method='file_magic ELF [[0-9]][[0-9]]*-bit [[ML]]SB (executable|dynamic lib)'
+  lt_cv_file_magic_cmd=/usr/bin/file
+  lt_cv_file_magic_test_file=/usr/lib/libnls.so
+  ;;
+
+*nto* | *qnx*)
+  lt_cv_deplibs_check_method=pass_all
+  ;;
+
+openbsd* | bitrig*)
+  if test -z "`echo __ELF__ | $CC -E - | $GREP __ELF__`"; then
+    lt_cv_deplibs_check_method='match_pattern /lib[[^/]]+(\.so\.[[0-9]]+\.[[0-9]]+|\.so|_pic\.a)$'
+  else
+    lt_cv_deplibs_check_method='match_pattern /lib[[^/]]+(\.so\.[[0-9]]+\.[[0-9]]+|_pic\.a)$'
+  fi
+  ;;
+
+osf3* | osf4* | osf5*)
+  lt_cv_deplibs_check_method=pass_all
+  ;;
+
+rdos*)
+  lt_cv_deplibs_check_method=pass_all
+  ;;
+
+solaris*)
+  lt_cv_deplibs_check_method=pass_all
+  ;;
+
+sysv5* | sco3.2v5* | sco5v6* | unixware* | OpenUNIX* | sysv4*uw2*)
+  lt_cv_deplibs_check_method=pass_all
+  ;;
+
+sysv4 | sysv4.3*)
+  case $host_vendor in
+  motorola)
+    lt_cv_deplibs_check_method='file_magic ELF [[0-9]][[0-9]]*-bit [[ML]]SB (shared object|dynamic lib) M[[0-9]][[0-9]]* Version [[0-9]]'
+    lt_cv_file_magic_test_file=`echo /usr/lib/libc.so*`
+    ;;
+  ncr)
+    lt_cv_deplibs_check_method=pass_all
+    ;;
+  sequent)
+    lt_cv_file_magic_cmd='/bin/file'
+    lt_cv_deplibs_check_method='file_magic ELF [[0-9]][[0-9]]*-bit [[LM]]SB (shared object|dynamic lib )'
+    ;;
+  sni)
+    lt_cv_file_magic_cmd='/bin/file'
+    lt_cv_deplibs_check_method="file_magic ELF [[0-9]][[0-9]]*-bit [[LM]]SB dynamic lib"
+    lt_cv_file_magic_test_file=/lib/libc.so
+    ;;
+  siemens)
+    lt_cv_deplibs_check_method=pass_all
+    ;;
+  pc)
+    lt_cv_deplibs_check_method=pass_all
+    ;;
+  esac
+  ;;
+
+tpf*)
+  lt_cv_deplibs_check_method=pass_all
+  ;;
+os2*)
+  lt_cv_deplibs_check_method=pass_all
+  ;;
+esac
+])
+
+file_magic_glob=
+want_nocaseglob=no
+if test "$build" = "$host"; then
+  case $host_os in
+  mingw* | pw32*)
+    if ( shopt | grep nocaseglob ) >/dev/null 2>&1; then
+      want_nocaseglob=yes
+    else
+      file_magic_glob=`echo aAbBcCdDeEfFgGhHiIjJkKlLmMnNoOpPqQrRsStTuUvVwWxXyYzZ | $SED -e "s/\(..\)/s\/[[\1]]\/[[\1]]\/g;/g"`
+    fi
+    ;;
+  esac
+fi
+
+file_magic_cmd=$lt_cv_file_magic_cmd
+deplibs_check_method=$lt_cv_deplibs_check_method
+test -z "$deplibs_check_method" && deplibs_check_method=unknown
+
+_LT_DECL([], [deplibs_check_method], [1],
+    [Method to check whether dependent libraries are shared objects])
+_LT_DECL([], [file_magic_cmd], [1],
+    [Command to use when deplibs_check_method = "file_magic"])
+_LT_DECL([], [file_magic_glob], [1],
+    [How to find potential files when deplibs_check_method = "file_magic"])
+_LT_DECL([], [want_nocaseglob], [1],
+    [Find potential files using nocaseglob when deplibs_check_method = "file_magic"])
+])# _LT_CHECK_MAGIC_METHOD
+
+
+# LT_PATH_NM
+# ----------
+# find the pathname to a BSD- or MS-compatible name lister
+AC_DEFUN([LT_PATH_NM],
+[AC_REQUIRE([AC_PROG_CC])dnl
+AC_CACHE_CHECK([for BSD- or MS-compatible name lister (nm)], lt_cv_path_NM,
+[if test -n "$NM"; then
+  # Let the user override the test.
+  lt_cv_path_NM=$NM
+else
+  lt_nm_to_check=${ac_tool_prefix}nm
+  if test -n "$ac_tool_prefix" && test "$build" = "$host"; then
+    lt_nm_to_check="$lt_nm_to_check nm"
+  fi
+  for lt_tmp_nm in $lt_nm_to_check; do
+    lt_save_ifs=$IFS; IFS=$PATH_SEPARATOR
+    for ac_dir in $PATH /usr/ccs/bin/elf /usr/ccs/bin /usr/ucb /bin; do
+      IFS=$lt_save_ifs
+      test -z "$ac_dir" && ac_dir=.
+      tmp_nm=$ac_dir/$lt_tmp_nm
+      if test -f "$tmp_nm" || test -f "$tmp_nm$ac_exeext"; then
+	# Check to see if the nm accepts a BSD-compat flag.
+	# Adding the 'sed 1q' prevents false positives on HP-UX, which says:
+	#   nm: unknown option "B" ignored
+	# Tru64's nm complains that /dev/null is an invalid object file
+	# MSYS converts /dev/null to NUL, MinGW nm treats NUL as empty
+	case $build_os in
+	mingw*) lt_bad_file=conftest.nm/nofile ;;
+	*) lt_bad_file=/dev/null ;;
+	esac
+	case `"$tmp_nm" -B $lt_bad_file 2>&1 | sed '1q'` in
+	*$lt_bad_file* | *'Invalid file or object type'*)
+	  lt_cv_path_NM="$tmp_nm -B"
+	  break 2
+	  ;;
+	*)
+	  case `"$tmp_nm" -p /dev/null 2>&1 | sed '1q'` in
+	  */dev/null*)
+	    lt_cv_path_NM="$tmp_nm -p"
+	    break 2
+	    ;;
+	  *)
+	    lt_cv_path_NM=${lt_cv_path_NM="$tmp_nm"} # keep the first match, but
+	    continue # so that we can try to find one that supports BSD flags
+	    ;;
+	  esac
+	  ;;
+	esac
+      fi
+    done
+    IFS=$lt_save_ifs
+  done
+  : ${lt_cv_path_NM=no}
+fi])
+if test no != "$lt_cv_path_NM"; then
+  NM=$lt_cv_path_NM
+else
+  # Didn't find any BSD compatible name lister, look for dumpbin.
+  if test -n "$DUMPBIN"; then :
+    # Let the user override the test.
+  else
+    AC_CHECK_TOOLS(DUMPBIN, [dumpbin "link -dump"], :)
+    case `$DUMPBIN -symbols -headers /dev/null 2>&1 | sed '1q'` in
+    *COFF*)
+      DUMPBIN="$DUMPBIN -symbols -headers"
+      ;;
+    *)
+      DUMPBIN=:
+      ;;
+    esac
+  fi
+  AC_SUBST([DUMPBIN])
+  if test : != "$DUMPBIN"; then
+    NM=$DUMPBIN
+  fi
+fi
+test -z "$NM" && NM=nm
+AC_SUBST([NM])
+_LT_DECL([], [NM], [1], [A BSD- or MS-compatible name lister])dnl
+
+AC_CACHE_CHECK([the name lister ($NM) interface], [lt_cv_nm_interface],
+  [lt_cv_nm_interface="BSD nm"
+  echo "int some_variable = 0;" > conftest.$ac_ext
+  (eval echo "\"\$as_me:$LINENO: $ac_compile\"" >&AS_MESSAGE_LOG_FD)
+  (eval "$ac_compile" 2>conftest.err)
+  cat conftest.err >&AS_MESSAGE_LOG_FD
+  (eval echo "\"\$as_me:$LINENO: $NM \\\"conftest.$ac_objext\\\"\"" >&AS_MESSAGE_LOG_FD)
+  (eval "$NM \"conftest.$ac_objext\"" 2>conftest.err > conftest.out)
+  cat conftest.err >&AS_MESSAGE_LOG_FD
+  (eval echo "\"\$as_me:$LINENO: output\"" >&AS_MESSAGE_LOG_FD)
+  cat conftest.out >&AS_MESSAGE_LOG_FD
+  if $GREP 'External.*some_variable' conftest.out > /dev/null; then
+    lt_cv_nm_interface="MS dumpbin"
+  fi
+  rm -f conftest*])
+])# LT_PATH_NM
+
+# Old names:
+AU_ALIAS([AM_PROG_NM], [LT_PATH_NM])
+AU_ALIAS([AC_PROG_NM], [LT_PATH_NM])
+dnl aclocal-1.4 backwards compatibility:
+dnl AC_DEFUN([AM_PROG_NM], [])
+dnl AC_DEFUN([AC_PROG_NM], [])
+
+# _LT_CHECK_SHAREDLIB_FROM_LINKLIB
+# --------------------------------
+# how to determine the name of the shared library
+# associated with a specific link library.
+#  -- PORTME fill in with the dynamic library characteristics
+m4_defun([_LT_CHECK_SHAREDLIB_FROM_LINKLIB],
+[m4_require([_LT_DECL_EGREP])
+m4_require([_LT_DECL_OBJDUMP])
+m4_require([_LT_DECL_DLLTOOL])
+AC_CACHE_CHECK([how to associate runtime and link libraries],
+lt_cv_sharedlib_from_linklib_cmd,
+[lt_cv_sharedlib_from_linklib_cmd='unknown'
+
+case $host_os in
+cygwin* | mingw* | pw32* | cegcc*)
+  # two different shell functions defined in ltmain.sh;
+  # decide which one to use based on capabilities of $DLLTOOL
+  case `$DLLTOOL --help 2>&1` in
+  *--identify-strict*)
+    lt_cv_sharedlib_from_linklib_cmd=func_cygming_dll_for_implib
+    ;;
+  *)
+    lt_cv_sharedlib_from_linklib_cmd=func_cygming_dll_for_implib_fallback
+    ;;
+  esac
+  ;;
+*)
+  # fallback: assume linklib IS sharedlib
+  lt_cv_sharedlib_from_linklib_cmd=$ECHO
+  ;;
+esac
+])
+sharedlib_from_linklib_cmd=$lt_cv_sharedlib_from_linklib_cmd
+test -z "$sharedlib_from_linklib_cmd" && sharedlib_from_linklib_cmd=$ECHO
+
+_LT_DECL([], [sharedlib_from_linklib_cmd], [1],
+    [Command to associate shared and link libraries])
+])# _LT_CHECK_SHAREDLIB_FROM_LINKLIB
+
+
+# _LT_PATH_MANIFEST_TOOL
+# ----------------------
+# locate the manifest tool
+m4_defun([_LT_PATH_MANIFEST_TOOL],
+[AC_CHECK_TOOL(MANIFEST_TOOL, mt, :)
+test -z "$MANIFEST_TOOL" && MANIFEST_TOOL=mt
+AC_CACHE_CHECK([if $MANIFEST_TOOL is a manifest tool], [lt_cv_path_mainfest_tool],
+  [lt_cv_path_mainfest_tool=no
+  echo "$as_me:$LINENO: $MANIFEST_TOOL '-?'" >&AS_MESSAGE_LOG_FD
+  $MANIFEST_TOOL '-?' 2>conftest.err > conftest.out
+  cat conftest.err >&AS_MESSAGE_LOG_FD
+  if $GREP 'Manifest Tool' conftest.out > /dev/null; then
+    lt_cv_path_mainfest_tool=yes
+  fi
+  rm -f conftest*])
+if test yes != "$lt_cv_path_mainfest_tool"; then
+  MANIFEST_TOOL=:
+fi
+_LT_DECL([], [MANIFEST_TOOL], [1], [Manifest tool])dnl
+])# _LT_PATH_MANIFEST_TOOL
+
+
+# _LT_DLL_DEF_P([FILE])
+# ---------------------
+# True iff FILE is a Windows DLL '.def' file.
+# Keep in sync with func_dll_def_p in the libtool script
+AC_DEFUN([_LT_DLL_DEF_P],
+[dnl
+  test DEF = "`$SED -n dnl
+    -e '\''s/^[[	 ]]*//'\'' dnl Strip leading whitespace
+    -e '\''/^\(;.*\)*$/d'\'' dnl      Delete empty lines and comments
+    -e '\''s/^\(EXPORTS\|LIBRARY\)\([[	 ]].*\)*$/DEF/p'\'' dnl
+    -e q dnl                          Only consider the first "real" line
+    $1`" dnl
+])# _LT_DLL_DEF_P
+
+
+# LT_LIB_M
+# --------
+# check for math library
+AC_DEFUN([LT_LIB_M],
+[AC_REQUIRE([AC_CANONICAL_HOST])dnl
+LIBM=
+case $host in
+*-*-beos* | *-*-cegcc* | *-*-cygwin* | *-*-haiku* | *-*-pw32* | *-*-darwin*)
+  # These system don't have libm, or don't need it
+  ;;
+*-ncr-sysv4.3*)
+  AC_CHECK_LIB(mw, _mwvalidcheckl, LIBM=-lmw)
+  AC_CHECK_LIB(m, cos, LIBM="$LIBM -lm")
+  ;;
+*)
+  AC_CHECK_LIB(m, cos, LIBM=-lm)
+  ;;
+esac
+AC_SUBST([LIBM])
+])# LT_LIB_M
+
+# Old name:
+AU_ALIAS([AC_CHECK_LIBM], [LT_LIB_M])
+dnl aclocal-1.4 backwards compatibility:
+dnl AC_DEFUN([AC_CHECK_LIBM], [])
+
+
+# _LT_COMPILER_NO_RTTI([TAGNAME])
+# -------------------------------
+m4_defun([_LT_COMPILER_NO_RTTI],
+[m4_require([_LT_TAG_COMPILER])dnl
+
+_LT_TAGVAR(lt_prog_compiler_no_builtin_flag, $1)=
+
+if test yes = "$GCC"; then
+  case $cc_basename in
+  nvcc*)
+    _LT_TAGVAR(lt_prog_compiler_no_builtin_flag, $1)=' -Xcompiler -fno-builtin' ;;
+  *)
+    _LT_TAGVAR(lt_prog_compiler_no_builtin_flag, $1)=' -fno-builtin' ;;
+  esac
+
+  _LT_COMPILER_OPTION([if $compiler supports -fno-rtti -fno-exceptions],
+    lt_cv_prog_compiler_rtti_exceptions,
+    [-fno-rtti -fno-exceptions], [],
+    [_LT_TAGVAR(lt_prog_compiler_no_builtin_flag, $1)="$_LT_TAGVAR(lt_prog_compiler_no_builtin_flag, $1) -fno-rtti -fno-exceptions"])
+fi
+_LT_TAGDECL([no_builtin_flag], [lt_prog_compiler_no_builtin_flag], [1],
+	[Compiler flag to turn off builtin functions])
+])# _LT_COMPILER_NO_RTTI
+
+
+# _LT_CMD_GLOBAL_SYMBOLS
+# ----------------------
+m4_defun([_LT_CMD_GLOBAL_SYMBOLS],
+[AC_REQUIRE([AC_CANONICAL_HOST])dnl
+AC_REQUIRE([AC_PROG_CC])dnl
+AC_REQUIRE([AC_PROG_AWK])dnl
+AC_REQUIRE([LT_PATH_NM])dnl
+AC_REQUIRE([LT_PATH_LD])dnl
+m4_require([_LT_DECL_SED])dnl
+m4_require([_LT_DECL_EGREP])dnl
+m4_require([_LT_TAG_COMPILER])dnl
+
+# Check for command to grab the raw symbol name followed by C symbol from nm.
+AC_MSG_CHECKING([command to parse $NM output from $compiler object])
+AC_CACHE_VAL([lt_cv_sys_global_symbol_pipe],
+[
+# These are sane defaults that work on at least a few old systems.
+# [They come from Ultrix.  What could be older than Ultrix?!! ;)]
+
+# Character class describing NM global symbol codes.
+symcode='[[BCDEGRST]]'
+
+# Regexp to match symbols that can be accessed directly from C.
+sympat='\([[_A-Za-z]][[_A-Za-z0-9]]*\)'
+
+# Define system-specific variables.
+case $host_os in
+aix*)
+  symcode='[[BCDT]]'
+  ;;
+cygwin* | mingw* | pw32* | cegcc*)
+  symcode='[[ABCDGISTW]]'
+  ;;
+hpux*)
+  if test ia64 = "$host_cpu"; then
+    symcode='[[ABCDEGRST]]'
+  fi
+  ;;
+irix* | nonstopux*)
+  symcode='[[BCDEGRST]]'
+  ;;
+osf*)
+  symcode='[[BCDEGQRST]]'
+  ;;
+solaris*)
+  symcode='[[BDRT]]'
+  ;;
+sco3.2v5*)
+  symcode='[[DT]]'
+  ;;
+sysv4.2uw2*)
+  symcode='[[DT]]'
+  ;;
+sysv5* | sco5v6* | unixware* | OpenUNIX*)
+  symcode='[[ABDT]]'
+  ;;
+sysv4)
+  symcode='[[DFNSTU]]'
+  ;;
+esac
+
+# If we're using GNU nm, then use its standard symbol codes.
+case `$NM -V 2>&1` in
+*GNU* | *'with BFD'*)
+  symcode='[[ABCDGIRSTW]]' ;;
+esac
+
+if test "$lt_cv_nm_interface" = "MS dumpbin"; then
+  # Gets list of data symbols to import.
+  lt_cv_sys_global_symbol_to_import="sed -n -e 's/^I .* \(.*\)$/\1/p'"
+  # Adjust the below global symbol transforms to fixup imported variables.
+  lt_cdecl_hook=" -e 's/^I .* \(.*\)$/extern __declspec(dllimport) char \1;/p'"
+  lt_c_name_hook=" -e 's/^I .* \(.*\)$/  {\"\1\", (void *) 0},/p'"
+  lt_c_name_lib_hook="\
+  -e 's/^I .* \(lib.*\)$/  {\"\1\", (void *) 0},/p'\
+  -e 's/^I .* \(.*\)$/  {\"lib\1\", (void *) 0},/p'"
+else
+  # Disable hooks by default.
+  lt_cv_sys_global_symbol_to_import=
+  lt_cdecl_hook=
+  lt_c_name_hook=
+  lt_c_name_lib_hook=
+fi
+
+# Transform an extracted symbol line into a proper C declaration.
+# Some systems (esp. on ia64) link data and code symbols differently,
+# so use this general approach.
+lt_cv_sys_global_symbol_to_cdecl="sed -n"\
+$lt_cdecl_hook\
+" -e 's/^T .* \(.*\)$/extern int \1();/p'"\
+" -e 's/^$symcode$symcode* .* \(.*\)$/extern char \1;/p'"
+
+# Transform an extracted symbol line into symbol name and symbol address
+lt_cv_sys_global_symbol_to_c_name_address="sed -n"\
+$lt_c_name_hook\
+" -e 's/^: \(.*\) .*$/  {\"\1\", (void *) 0},/p'"\
+" -e 's/^$symcode$symcode* .* \(.*\)$/  {\"\1\", (void *) \&\1},/p'"
+
+# Transform an extracted symbol line into symbol name with lib prefix and
+# symbol address.
+lt_cv_sys_global_symbol_to_c_name_address_lib_prefix="sed -n"\
+$lt_c_name_lib_hook\
+" -e 's/^: \(.*\) .*$/  {\"\1\", (void *) 0},/p'"\
+" -e 's/^$symcode$symcode* .* \(lib.*\)$/  {\"\1\", (void *) \&\1},/p'"\
+" -e 's/^$symcode$symcode* .* \(.*\)$/  {\"lib\1\", (void *) \&\1},/p'"
+
+# Handle CRLF in mingw tool chain
+opt_cr=
+case $build_os in
+mingw*)
+  opt_cr=`$ECHO 'x\{0,1\}' | tr x '\015'` # option cr in regexp
+  ;;
+esac
+
+# Try without a prefix underscore, then with it.
+for ac_symprfx in "" "_"; do
+
+  # Transform symcode, sympat, and symprfx into a raw symbol and a C symbol.
+  symxfrm="\\1 $ac_symprfx\\2 \\2"
+
+  # Write the raw and C identifiers.
+  if test "$lt_cv_nm_interface" = "MS dumpbin"; then
+    # Fake it for dumpbin and say T for any non-static function,
+    # D for any global variable and I for any imported variable.
+    # Also find C++ and __fastcall symbols from MSVC++,
+    # which start with @ or ?.
+    lt_cv_sys_global_symbol_pipe="$AWK ['"\
+"     {last_section=section; section=\$ 3};"\
+"     /^COFF SYMBOL TABLE/{for(i in hide) delete hide[i]};"\
+"     /Section length .*#relocs.*(pick any)/{hide[last_section]=1};"\
+"     /^ *Symbol name *: /{split(\$ 0,sn,\":\"); si=substr(sn[2],2)};"\
+"     /^ *Type *: code/{print \"T\",si,substr(si,length(prfx))};"\
+"     /^ *Type *: data/{print \"I\",si,substr(si,length(prfx))};"\
+"     \$ 0!~/External *\|/{next};"\
+"     / 0+ UNDEF /{next}; / UNDEF \([^|]\)*()/{next};"\
+"     {if(hide[section]) next};"\
+"     {f=\"D\"}; \$ 0~/\(\).*\|/{f=\"T\"};"\
+"     {split(\$ 0,a,/\||\r/); split(a[2],s)};"\
+"     s[1]~/^[@?]/{print f,s[1],s[1]; next};"\
+"     s[1]~prfx {split(s[1],t,\"@\"); print f,t[1],substr(t[1],length(prfx))}"\
+"     ' prfx=^$ac_symprfx]"
+  else
+    lt_cv_sys_global_symbol_pipe="sed -n -e 's/^.*[[	 ]]\($symcode$symcode*\)[[	 ]][[	 ]]*$ac_symprfx$sympat$opt_cr$/$symxfrm/p'"
+  fi
+  lt_cv_sys_global_symbol_pipe="$lt_cv_sys_global_symbol_pipe | sed '/ __gnu_lto/d'"
+
+  # Check to see that the pipe works correctly.
+  pipe_works=no
+
+  rm -f conftest*
+  cat > conftest.$ac_ext <<_LT_EOF
+#ifdef __cplusplus
+extern "C" {
+#endif
+char nm_test_var;
+void nm_test_func(void);
+void nm_test_func(void){}
+#ifdef __cplusplus
+}
+#endif
+int main(){nm_test_var='a';nm_test_func();return(0);}
+_LT_EOF
+
+  if AC_TRY_EVAL(ac_compile); then
+    # Now try to grab the symbols.
+    nlist=conftest.nm
+    if AC_TRY_EVAL(NM conftest.$ac_objext \| "$lt_cv_sys_global_symbol_pipe" \> $nlist) && test -s "$nlist"; then
+      # Try sorting and uniquifying the output.
+      if sort "$nlist" | uniq > "$nlist"T; then
+	mv -f "$nlist"T "$nlist"
+      else
+	rm -f "$nlist"T
+      fi
+
+      # Make sure that we snagged all the symbols we need.
+      if $GREP ' nm_test_var$' "$nlist" >/dev/null; then
+	if $GREP ' nm_test_func$' "$nlist" >/dev/null; then
+	  cat <<_LT_EOF > conftest.$ac_ext
+/* Keep this code in sync between libtool.m4, ltmain, lt_system.h, and tests.  */
+#if defined _WIN32 || defined __CYGWIN__ || defined _WIN32_WCE
+/* DATA imports from DLLs on WIN32 can't be const, because runtime
+   relocations are performed -- see ld's documentation on pseudo-relocs.  */
+# define LT@&t@_DLSYM_CONST
+#elif defined __osf__
+/* This system does not cope well with relocations in const data.  */
+# define LT@&t@_DLSYM_CONST
+#else
+# define LT@&t@_DLSYM_CONST const
+#endif
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+_LT_EOF
+	  # Now generate the symbol file.
+	  eval "$lt_cv_sys_global_symbol_to_cdecl"' < "$nlist" | $GREP -v main >> conftest.$ac_ext'
+
+	  cat <<_LT_EOF >> conftest.$ac_ext
+
+/* The mapping between symbol names and symbols.  */
+LT@&t@_DLSYM_CONST struct {
+  const char *name;
+  void       *address;
+}
+lt__PROGRAM__LTX_preloaded_symbols[[]] =
+{
+  { "@PROGRAM@", (void *) 0 },
+_LT_EOF
+	  $SED "s/^$symcode$symcode* .* \(.*\)$/  {\"\1\", (void *) \&\1},/" < "$nlist" | $GREP -v main >> conftest.$ac_ext
+	  cat <<\_LT_EOF >> conftest.$ac_ext
+  {0, (void *) 0}
+};
+
+/* This works around a problem in FreeBSD linker */
+#ifdef FREEBSD_WORKAROUND
+static const void *lt_preloaded_setup() {
+  return lt__PROGRAM__LTX_preloaded_symbols;
+}
+#endif
+
+#ifdef __cplusplus
+}
+#endif
+_LT_EOF
+	  # Now try linking the two files.
+	  mv conftest.$ac_objext conftstm.$ac_objext
+	  lt_globsym_save_LIBS=$LIBS
+	  lt_globsym_save_CFLAGS=$CFLAGS
+	  LIBS=conftstm.$ac_objext
+	  CFLAGS="$CFLAGS$_LT_TAGVAR(lt_prog_compiler_no_builtin_flag, $1)"
+	  if AC_TRY_EVAL(ac_link) && test -s conftest$ac_exeext; then
+	    pipe_works=yes
+	  fi
+	  LIBS=$lt_globsym_save_LIBS
+	  CFLAGS=$lt_globsym_save_CFLAGS
+	else
+	  echo "cannot find nm_test_func in $nlist" >&AS_MESSAGE_LOG_FD
+	fi
+      else
+	echo "cannot find nm_test_var in $nlist" >&AS_MESSAGE_LOG_FD
+      fi
+    else
+      echo "cannot run $lt_cv_sys_global_symbol_pipe" >&AS_MESSAGE_LOG_FD
+    fi
+  else
+    echo "$progname: failed program was:" >&AS_MESSAGE_LOG_FD
+    cat conftest.$ac_ext >&5
+  fi
+  rm -rf conftest* conftst*
+
+  # Do not use the global_symbol_pipe unless it works.
+  if test yes = "$pipe_works"; then
+    break
+  else
+    lt_cv_sys_global_symbol_pipe=
+  fi
+done
+])
+if test -z "$lt_cv_sys_global_symbol_pipe"; then
+  lt_cv_sys_global_symbol_to_cdecl=
+fi
+if test -z "$lt_cv_sys_global_symbol_pipe$lt_cv_sys_global_symbol_to_cdecl"; then
+  AC_MSG_RESULT(failed)
+else
+  AC_MSG_RESULT(ok)
+fi
+
+# Response file support.
+if test "$lt_cv_nm_interface" = "MS dumpbin"; then
+  nm_file_list_spec='@'
+elif $NM --help 2>/dev/null | grep '[[@]]FILE' >/dev/null; then
+  nm_file_list_spec='@'
+fi
+
+_LT_DECL([global_symbol_pipe], [lt_cv_sys_global_symbol_pipe], [1],
+    [Take the output of nm and produce a listing of raw symbols and C names])
+_LT_DECL([global_symbol_to_cdecl], [lt_cv_sys_global_symbol_to_cdecl], [1],
+    [Transform the output of nm in a proper C declaration])
+_LT_DECL([global_symbol_to_import], [lt_cv_sys_global_symbol_to_import], [1],
+    [Transform the output of nm into a list of symbols to manually relocate])
+_LT_DECL([global_symbol_to_c_name_address],
+    [lt_cv_sys_global_symbol_to_c_name_address], [1],
+    [Transform the output of nm in a C name address pair])
+_LT_DECL([global_symbol_to_c_name_address_lib_prefix],
+    [lt_cv_sys_global_symbol_to_c_name_address_lib_prefix], [1],
+    [Transform the output of nm in a C name address pair when lib prefix is needed])
+_LT_DECL([nm_interface], [lt_cv_nm_interface], [1],
+    [The name lister interface])
+_LT_DECL([], [nm_file_list_spec], [1],
+    [Specify filename containing input files for $NM])
+]) # _LT_CMD_GLOBAL_SYMBOLS
+
+
+# _LT_COMPILER_PIC([TAGNAME])
+# ---------------------------
+m4_defun([_LT_COMPILER_PIC],
+[m4_require([_LT_TAG_COMPILER])dnl
+_LT_TAGVAR(lt_prog_compiler_wl, $1)=
+_LT_TAGVAR(lt_prog_compiler_pic, $1)=
+_LT_TAGVAR(lt_prog_compiler_static, $1)=
+
+m4_if([$1], [CXX], [
+  # C++ specific cases for pic, static, wl, etc.
+  if test yes = "$GXX"; then
+    _LT_TAGVAR(lt_prog_compiler_wl, $1)='-Wl,'
+    _LT_TAGVAR(lt_prog_compiler_static, $1)='-static'
+
+    case $host_os in
+    aix*)
+      # All AIX code is PIC.
+      if test ia64 = "$host_cpu"; then
+	# AIX 5 now supports IA64 processor
+	_LT_TAGVAR(lt_prog_compiler_static, $1)='-Bstatic'
+      fi
+      _LT_TAGVAR(lt_prog_compiler_pic, $1)='-fPIC'
+      ;;
+
+    amigaos*)
+      case $host_cpu in
+      powerpc)
+            # see comment about AmigaOS4 .so support
+            _LT_TAGVAR(lt_prog_compiler_pic, $1)='-fPIC'
+        ;;
+      m68k)
+            # FIXME: we need at least 68020 code to build shared libraries, but
+            # adding the '-m68020' flag to GCC prevents building anything better,
+            # like '-m68040'.
+            _LT_TAGVAR(lt_prog_compiler_pic, $1)='-m68020 -resident32 -malways-restore-a4'
+        ;;
+      esac
+      ;;
+
+    beos* | irix5* | irix6* | nonstopux* | osf3* | osf4* | osf5*)
+      # PIC is the default for these OSes.
+      ;;
+    mingw* | cygwin* | os2* | pw32* | cegcc*)
+      # This hack is so that the source file can tell whether it is being
+      # built for inclusion in a dll (and should export symbols for example).
+      # Although the cygwin gcc ignores -fPIC, still need this for old-style
+      # (--disable-auto-import) libraries
+      m4_if([$1], [GCJ], [],
+	[_LT_TAGVAR(lt_prog_compiler_pic, $1)='-DDLL_EXPORT'])
+      case $host_os in
+      os2*)
+	_LT_TAGVAR(lt_prog_compiler_static, $1)='$wl-static'
+	;;
+      esac
+      ;;
+    darwin* | rhapsody*)
+      # PIC is the default on this platform
+      # Common symbols not allowed in MH_DYLIB files
+      _LT_TAGVAR(lt_prog_compiler_pic, $1)='-fno-common'
+      ;;
+    *djgpp*)
+      # DJGPP does not support shared libraries at all
+      _LT_TAGVAR(lt_prog_compiler_pic, $1)=
+      ;;
+    haiku*)
+      # PIC is the default for Haiku.
+      # The "-static" flag exists, but is broken.
+      _LT_TAGVAR(lt_prog_compiler_static, $1)=
+      ;;
+    interix[[3-9]]*)
+      # Interix 3.x gcc -fpic/-fPIC options generate broken code.
+      # Instead, we relocate shared libraries at runtime.
+      ;;
+    sysv4*MP*)
+      if test -d /usr/nec; then
+	_LT_TAGVAR(lt_prog_compiler_pic, $1)=-Kconform_pic
+      fi
+      ;;
+    hpux*)
+      # PIC is the default for 64-bit PA HP-UX, but not for 32-bit
+      # PA HP-UX.  On IA64 HP-UX, PIC is the default but the pic flag
+      # sets the default TLS model and affects inlining.
+      case $host_cpu in
+      hppa*64*)
+	;;
+      *)
+	_LT_TAGVAR(lt_prog_compiler_pic, $1)='-fPIC'
+	;;
+      esac
+      ;;
+    *qnx* | *nto*)
+      # QNX uses GNU C++, but need to define -shared option too, otherwise
+      # it will coredump.
+      _LT_TAGVAR(lt_prog_compiler_pic, $1)='-fPIC -shared'
+      ;;
+    *)
+      _LT_TAGVAR(lt_prog_compiler_pic, $1)='-fPIC'
+      ;;
+    esac
+  else
+    case $host_os in
+      aix[[4-9]]*)
+	# All AIX code is PIC.
+	if test ia64 = "$host_cpu"; then
+	  # AIX 5 now supports IA64 processor
+	  _LT_TAGVAR(lt_prog_compiler_static, $1)='-Bstatic'
+	else
+	  _LT_TAGVAR(lt_prog_compiler_static, $1)='-bnso -bI:/lib/syscalls.exp'
+	fi
+	;;
+      chorus*)
+	case $cc_basename in
+	cxch68*)
+	  # Green Hills C++ Compiler
+	  # _LT_TAGVAR(lt_prog_compiler_static, $1)="--no_auto_instantiation -u __main -u __premain -u _abort -r $COOL_DIR/lib/libOrb.a $MVME_DIR/lib/CC/libC.a $MVME_DIR/lib/classix/libcx.s.a"
+	  ;;
+	esac
+	;;
+      mingw* | cygwin* | os2* | pw32* | cegcc*)
+	# This hack is so that the source file can tell whether it is being
+	# built for inclusion in a dll (and should export symbols for example).
+	m4_if([$1], [GCJ], [],
+	  [_LT_TAGVAR(lt_prog_compiler_pic, $1)='-DDLL_EXPORT'])
+	;;
+      dgux*)
+	case $cc_basename in
+	  ec++*)
+	    _LT_TAGVAR(lt_prog_compiler_pic, $1)='-KPIC'
+	    ;;
+	  ghcx*)
+	    # Green Hills C++ Compiler
+	    _LT_TAGVAR(lt_prog_compiler_pic, $1)='-pic'
+	    ;;
+	  *)
+	    ;;
+	esac
+	;;
+      freebsd* | dragonfly*)
+	# FreeBSD uses GNU C++
+	;;
+      hpux9* | hpux10* | hpux11*)
+	case $cc_basename in
+	  CC*)
+	    _LT_TAGVAR(lt_prog_compiler_wl, $1)='-Wl,'
+	    _LT_TAGVAR(lt_prog_compiler_static, $1)='$wl-a ${wl}archive'
+	    if test ia64 != "$host_cpu"; then
+	      _LT_TAGVAR(lt_prog_compiler_pic, $1)='+Z'
+	    fi
+	    ;;
+	  aCC*)
+	    _LT_TAGVAR(lt_prog_compiler_wl, $1)='-Wl,'
+	    _LT_TAGVAR(lt_prog_compiler_static, $1)='$wl-a ${wl}archive'
+	    case $host_cpu in
+	    hppa*64*|ia64*)
+	      # +Z the default
+	      ;;
+	    *)
+	      _LT_TAGVAR(lt_prog_compiler_pic, $1)='+Z'
+	      ;;
+	    esac
+	    ;;
+	  *)
+	    ;;
+	esac
+	;;
+      interix*)
+	# This is c89, which is MS Visual C++ (no shared libs)
+	# Anyone wants to do a port?
+	;;
+      irix5* | irix6* | nonstopux*)
+	case $cc_basename in
+	  CC*)
+	    _LT_TAGVAR(lt_prog_compiler_wl, $1)='-Wl,'
+	    _LT_TAGVAR(lt_prog_compiler_static, $1)='-non_shared'
+	    # CC pic flag -KPIC is the default.
+	    ;;
+	  *)
+	    ;;
+	esac
+	;;
+      linux* | k*bsd*-gnu | kopensolaris*-gnu | gnu*)
+	case $cc_basename in
+	  KCC*)
+	    # KAI C++ Compiler
+	    _LT_TAGVAR(lt_prog_compiler_wl, $1)='--backend -Wl,'
+	    _LT_TAGVAR(lt_prog_compiler_pic, $1)='-fPIC'
+	    ;;
+	  ecpc* )
+	    # old Intel C++ for x86_64, which still supported -KPIC.
+	    _LT_TAGVAR(lt_prog_compiler_wl, $1)='-Wl,'
+	    _LT_TAGVAR(lt_prog_compiler_pic, $1)='-KPIC'
+	    _LT_TAGVAR(lt_prog_compiler_static, $1)='-static'
+	    ;;
+	  icpc* )
+	    # Intel C++, used to be incompatible with GCC.
+	    # ICC 10 doesn't accept -KPIC any more.
+	    _LT_TAGVAR(lt_prog_compiler_wl, $1)='-Wl,'
+	    _LT_TAGVAR(lt_prog_compiler_pic, $1)='-fPIC'
+	    _LT_TAGVAR(lt_prog_compiler_static, $1)='-static'
+	    ;;
+	  pgCC* | pgcpp*)
+	    # Portland Group C++ compiler
+	    _LT_TAGVAR(lt_prog_compiler_wl, $1)='-Wl,'
+	    _LT_TAGVAR(lt_prog_compiler_pic, $1)='-fpic'
+	    _LT_TAGVAR(lt_prog_compiler_static, $1)='-Bstatic'
+	    ;;
+	  cxx*)
+	    # Compaq C++
+	    # Make sure the PIC flag is empty.  It appears that all Alpha
+	    # Linux and Compaq Tru64 Unix objects are PIC.
+	    _LT_TAGVAR(lt_prog_compiler_pic, $1)=
+	    _LT_TAGVAR(lt_prog_compiler_static, $1)='-non_shared'
+	    ;;
+	  xlc* | xlC* | bgxl[[cC]]* | mpixl[[cC]]*)
+	    # IBM XL 8.0, 9.0 on PPC and BlueGene
+	    _LT_TAGVAR(lt_prog_compiler_wl, $1)='-Wl,'
+	    _LT_TAGVAR(lt_prog_compiler_pic, $1)='-qpic'
+	    _LT_TAGVAR(lt_prog_compiler_static, $1)='-qstaticlink'
+	    ;;
+	  *)
+	    case `$CC -V 2>&1 | sed 5q` in
+	    *Sun\ C*)
+	      # Sun C++ 5.9
+	      _LT_TAGVAR(lt_prog_compiler_pic, $1)='-KPIC'
+	      _LT_TAGVAR(lt_prog_compiler_static, $1)='-Bstatic'
+	      _LT_TAGVAR(lt_prog_compiler_wl, $1)='-Qoption ld '
+	      ;;
+	    esac
+	    ;;
+	esac
+	;;
+      lynxos*)
+	;;
+      m88k*)
+	;;
+      mvs*)
+	case $cc_basename in
+	  cxx*)
+	    _LT_TAGVAR(lt_prog_compiler_pic, $1)='-W c,exportall'
+	    ;;
+	  *)
+	    ;;
+	esac
+	;;
+      netbsd*)
+	;;
+      *qnx* | *nto*)
+        # QNX uses GNU C++, but need to define -shared option too, otherwise
+        # it will coredump.
+        _LT_TAGVAR(lt_prog_compiler_pic, $1)='-fPIC -shared'
+        ;;
+      osf3* | osf4* | osf5*)
+	case $cc_basename in
+	  KCC*)
+	    _LT_TAGVAR(lt_prog_compiler_wl, $1)='--backend -Wl,'
+	    ;;
+	  RCC*)
+	    # Rational C++ 2.4.1
+	    _LT_TAGVAR(lt_prog_compiler_pic, $1)='-pic'
+	    ;;
+	  cxx*)
+	    # Digital/Compaq C++
+	    _LT_TAGVAR(lt_prog_compiler_wl, $1)='-Wl,'
+	    # Make sure the PIC flag is empty.  It appears that all Alpha
+	    # Linux and Compaq Tru64 Unix objects are PIC.
+	    _LT_TAGVAR(lt_prog_compiler_pic, $1)=
+	    _LT_TAGVAR(lt_prog_compiler_static, $1)='-non_shared'
+	    ;;
+	  *)
+	    ;;
+	esac
+	;;
+      psos*)
+	;;
+      solaris*)
+	case $cc_basename in
+	  CC* | sunCC*)
+	    # Sun C++ 4.2, 5.x and Centerline C++
+	    _LT_TAGVAR(lt_prog_compiler_pic, $1)='-KPIC'
+	    _LT_TAGVAR(lt_prog_compiler_static, $1)='-Bstatic'
+	    _LT_TAGVAR(lt_prog_compiler_wl, $1)='-Qoption ld '
+	    ;;
+	  gcx*)
+	    # Green Hills C++ Compiler
+	    _LT_TAGVAR(lt_prog_compiler_pic, $1)='-PIC'
+	    ;;
+	  *)
+	    ;;
+	esac
+	;;
+      sunos4*)
+	case $cc_basename in
+	  CC*)
+	    # Sun C++ 4.x
+	    _LT_TAGVAR(lt_prog_compiler_pic, $1)='-pic'
+	    _LT_TAGVAR(lt_prog_compiler_static, $1)='-Bstatic'
+	    ;;
+	  lcc*)
+	    # Lucid
+	    _LT_TAGVAR(lt_prog_compiler_pic, $1)='-pic'
+	    ;;
+	  *)
+	    ;;
+	esac
+	;;
+      sysv5* | unixware* | sco3.2v5* | sco5v6* | OpenUNIX*)
+	case $cc_basename in
+	  CC*)
+	    _LT_TAGVAR(lt_prog_compiler_wl, $1)='-Wl,'
+	    _LT_TAGVAR(lt_prog_compiler_pic, $1)='-KPIC'
+	    _LT_TAGVAR(lt_prog_compiler_static, $1)='-Bstatic'
+	    ;;
+	esac
+	;;
+      tandem*)
+	case $cc_basename in
+	  NCC*)
+	    # NonStop-UX NCC 3.20
+	    _LT_TAGVAR(lt_prog_compiler_pic, $1)='-KPIC'
+	    ;;
+	  *)
+	    ;;
+	esac
+	;;
+      vxworks*)
+	;;
+      *)
+	_LT_TAGVAR(lt_prog_compiler_can_build_shared, $1)=no
+	;;
+    esac
+  fi
+],
+[
+  if test yes = "$GCC"; then
+    _LT_TAGVAR(lt_prog_compiler_wl, $1)='-Wl,'
+    _LT_TAGVAR(lt_prog_compiler_static, $1)='-static'
+
+    case $host_os in
+      aix*)
+      # All AIX code is PIC.
+      if test ia64 = "$host_cpu"; then
+	# AIX 5 now supports IA64 processor
+	_LT_TAGVAR(lt_prog_compiler_static, $1)='-Bstatic'
+      fi
+      _LT_TAGVAR(lt_prog_compiler_pic, $1)='-fPIC'
+      ;;
+
+    amigaos*)
+      case $host_cpu in
+      powerpc)
+            # see comment about AmigaOS4 .so support
+            _LT_TAGVAR(lt_prog_compiler_pic, $1)='-fPIC'
+        ;;
+      m68k)
+            # FIXME: we need at least 68020 code to build shared libraries, but
+            # adding the '-m68020' flag to GCC prevents building anything better,
+            # like '-m68040'.
+            _LT_TAGVAR(lt_prog_compiler_pic, $1)='-m68020 -resident32 -malways-restore-a4'
+        ;;
+      esac
+      ;;
+
+    beos* | irix5* | irix6* | nonstopux* | osf3* | osf4* | osf5*)
+      # PIC is the default for these OSes.
+      ;;
+
+    mingw* | cygwin* | pw32* | os2* | cegcc*)
+      # This hack is so that the source file can tell whether it is being
+      # built for inclusion in a dll (and should export symbols for example).
+      # Although the cygwin gcc ignores -fPIC, still need this for old-style
+      # (--disable-auto-import) libraries
+      m4_if([$1], [GCJ], [],
+	[_LT_TAGVAR(lt_prog_compiler_pic, $1)='-DDLL_EXPORT'])
+      case $host_os in
+      os2*)
+	_LT_TAGVAR(lt_prog_compiler_static, $1)='$wl-static'
+	;;
+      esac
+      ;;
+
+    darwin* | rhapsody*)
+      # PIC is the default on this platform
+      # Common symbols not allowed in MH_DYLIB files
+      _LT_TAGVAR(lt_prog_compiler_pic, $1)='-fno-common'
+      ;;
+
+    haiku*)
+      # PIC is the default for Haiku.
+      # The "-static" flag exists, but is broken.
+      _LT_TAGVAR(lt_prog_compiler_static, $1)=
+      ;;
+
+    hpux*)
+      # PIC is the default for 64-bit PA HP-UX, but not for 32-bit
+      # PA HP-UX.  On IA64 HP-UX, PIC is the default but the pic flag
+      # sets the default TLS model and affects inlining.
+      case $host_cpu in
+      hppa*64*)
+	# +Z the default
+	;;
+      *)
+	_LT_TAGVAR(lt_prog_compiler_pic, $1)='-fPIC'
+	;;
+      esac
+      ;;
+
+    interix[[3-9]]*)
+      # Interix 3.x gcc -fpic/-fPIC options generate broken code.
+      # Instead, we relocate shared libraries at runtime.
+      ;;
+
+    msdosdjgpp*)
+      # Just because we use GCC doesn't mean we suddenly get shared libraries
+      # on systems that don't support them.
+      _LT_TAGVAR(lt_prog_compiler_can_build_shared, $1)=no
+      enable_shared=no
+      ;;
+
+    *nto* | *qnx*)
+      # QNX uses GNU C++, but need to define -shared option too, otherwise
+      # it will coredump.
+      _LT_TAGVAR(lt_prog_compiler_pic, $1)='-fPIC -shared'
+      ;;
+
+    sysv4*MP*)
+      if test -d /usr/nec; then
+	_LT_TAGVAR(lt_prog_compiler_pic, $1)=-Kconform_pic
+      fi
+      ;;
+
+    *)
+      _LT_TAGVAR(lt_prog_compiler_pic, $1)='-fPIC'
+      ;;
+    esac
+
+    case $cc_basename in
+    nvcc*) # Cuda Compiler Driver 2.2
+      _LT_TAGVAR(lt_prog_compiler_wl, $1)='-Xlinker '
+      if test -n "$_LT_TAGVAR(lt_prog_compiler_pic, $1)"; then
+        _LT_TAGVAR(lt_prog_compiler_pic, $1)="-Xcompiler $_LT_TAGVAR(lt_prog_compiler_pic, $1)"
+      fi
+      ;;
+    esac
+  else
+    # PORTME Check for flag to pass linker flags through the system compiler.
+    case $host_os in
+    aix*)
+      _LT_TAGVAR(lt_prog_compiler_wl, $1)='-Wl,'
+      if test ia64 = "$host_cpu"; then
+	# AIX 5 now supports IA64 processor
+	_LT_TAGVAR(lt_prog_compiler_static, $1)='-Bstatic'
+      else
+	_LT_TAGVAR(lt_prog_compiler_static, $1)='-bnso -bI:/lib/syscalls.exp'
+      fi
+      ;;
+
+    darwin* | rhapsody*)
+      # PIC is the default on this platform
+      # Common symbols not allowed in MH_DYLIB files
+      _LT_TAGVAR(lt_prog_compiler_pic, $1)='-fno-common'
+      case $cc_basename in
+      nagfor*)
+        # NAG Fortran compiler
+        _LT_TAGVAR(lt_prog_compiler_wl, $1)='-Wl,-Wl,,'
+        _LT_TAGVAR(lt_prog_compiler_pic, $1)='-PIC'
+        _LT_TAGVAR(lt_prog_compiler_static, $1)='-Bstatic'
+        ;;
+      esac
+      ;;
+
+    mingw* | cygwin* | pw32* | os2* | cegcc*)
+      # This hack is so that the source file can tell whether it is being
+      # built for inclusion in a dll (and should export symbols for example).
+      m4_if([$1], [GCJ], [],
+	[_LT_TAGVAR(lt_prog_compiler_pic, $1)='-DDLL_EXPORT'])
+      case $host_os in
+      os2*)
+	_LT_TAGVAR(lt_prog_compiler_static, $1)='$wl-static'
+	;;
+      esac
+      ;;
+
+    hpux9* | hpux10* | hpux11*)
+      _LT_TAGVAR(lt_prog_compiler_wl, $1)='-Wl,'
+      # PIC is the default for IA64 HP-UX and 64-bit HP-UX, but
+      # not for PA HP-UX.
+      case $host_cpu in
+      hppa*64*|ia64*)
+	# +Z the default
+	;;
+      *)
+	_LT_TAGVAR(lt_prog_compiler_pic, $1)='+Z'
+	;;
+      esac
+      # Is there a better lt_prog_compiler_static that works with the bundled CC?
+      _LT_TAGVAR(lt_prog_compiler_static, $1)='$wl-a ${wl}archive'
+      ;;
+
+    irix5* | irix6* | nonstopux*)
+      _LT_TAGVAR(lt_prog_compiler_wl, $1)='-Wl,'
+      # PIC (with -KPIC) is the default.
+      _LT_TAGVAR(lt_prog_compiler_static, $1)='-non_shared'
+      ;;
+
+    linux* | k*bsd*-gnu | kopensolaris*-gnu | gnu*)
+      case $cc_basename in
+      # old Intel for x86_64, which still supported -KPIC.
+      ecc*)
+	_LT_TAGVAR(lt_prog_compiler_wl, $1)='-Wl,'
+	_LT_TAGVAR(lt_prog_compiler_pic, $1)='-KPIC'
+	_LT_TAGVAR(lt_prog_compiler_static, $1)='-static'
+        ;;
+      # icc used to be incompatible with GCC.
+      # ICC 10 doesn't accept -KPIC any more.
+      icc* | ifort*)
+	_LT_TAGVAR(lt_prog_compiler_wl, $1)='-Wl,'
+	_LT_TAGVAR(lt_prog_compiler_pic, $1)='-fPIC'
+	_LT_TAGVAR(lt_prog_compiler_static, $1)='-static'
+        ;;
+      # Lahey Fortran 8.1.
+      lf95*)
+	_LT_TAGVAR(lt_prog_compiler_wl, $1)='-Wl,'
+	_LT_TAGVAR(lt_prog_compiler_pic, $1)='--shared'
+	_LT_TAGVAR(lt_prog_compiler_static, $1)='--static'
+	;;
+      nagfor*)
+	# NAG Fortran compiler
+	_LT_TAGVAR(lt_prog_compiler_wl, $1)='-Wl,-Wl,,'
+	_LT_TAGVAR(lt_prog_compiler_pic, $1)='-PIC'
+	_LT_TAGVAR(lt_prog_compiler_static, $1)='-Bstatic'
+	;;
+      tcc*)
+	# Fabrice Bellard et al's Tiny C Compiler
+	_LT_TAGVAR(lt_prog_compiler_wl, $1)='-Wl,'
+	_LT_TAGVAR(lt_prog_compiler_pic, $1)='-fPIC'
+	_LT_TAGVAR(lt_prog_compiler_static, $1)='-static'
+	;;
+      pgcc* | pgf77* | pgf90* | pgf95* | pgfortran*)
+        # Portland Group compilers (*not* the Pentium gcc compiler,
+	# which looks to be a dead project)
+	_LT_TAGVAR(lt_prog_compiler_wl, $1)='-Wl,'
+	_LT_TAGVAR(lt_prog_compiler_pic, $1)='-fpic'
+	_LT_TAGVAR(lt_prog_compiler_static, $1)='-Bstatic'
+        ;;
+      ccc*)
+        _LT_TAGVAR(lt_prog_compiler_wl, $1)='-Wl,'
+        # All Alpha code is PIC.
+        _LT_TAGVAR(lt_prog_compiler_static, $1)='-non_shared'
+        ;;
+      xl* | bgxl* | bgf* | mpixl*)
+	# IBM XL C 8.0/Fortran 10.1, 11.1 on PPC and BlueGene
+	_LT_TAGVAR(lt_prog_compiler_wl, $1)='-Wl,'
+	_LT_TAGVAR(lt_prog_compiler_pic, $1)='-qpic'
+	_LT_TAGVAR(lt_prog_compiler_static, $1)='-qstaticlink'
+	;;
+      *)
+	case `$CC -V 2>&1 | sed 5q` in
+	*Sun\ Ceres\ Fortran* | *Sun*Fortran*\ [[1-7]].* | *Sun*Fortran*\ 8.[[0-3]]*)
+	  # Sun Fortran 8.3 passes all unrecognized flags to the linker
+	  _LT_TAGVAR(lt_prog_compiler_pic, $1)='-KPIC'
+	  _LT_TAGVAR(lt_prog_compiler_static, $1)='-Bstatic'
+	  _LT_TAGVAR(lt_prog_compiler_wl, $1)=''
+	  ;;
+	*Sun\ F* | *Sun*Fortran*)
+	  _LT_TAGVAR(lt_prog_compiler_pic, $1)='-KPIC'
+	  _LT_TAGVAR(lt_prog_compiler_static, $1)='-Bstatic'
+	  _LT_TAGVAR(lt_prog_compiler_wl, $1)='-Qoption ld '
+	  ;;
+	*Sun\ C*)
+	  # Sun C 5.9
+	  _LT_TAGVAR(lt_prog_compiler_pic, $1)='-KPIC'
+	  _LT_TAGVAR(lt_prog_compiler_static, $1)='-Bstatic'
+	  _LT_TAGVAR(lt_prog_compiler_wl, $1)='-Wl,'
+	  ;;
+        *Intel*\ [[CF]]*Compiler*)
+	  _LT_TAGVAR(lt_prog_compiler_wl, $1)='-Wl,'
+	  _LT_TAGVAR(lt_prog_compiler_pic, $1)='-fPIC'
+	  _LT_TAGVAR(lt_prog_compiler_static, $1)='-static'
+	  ;;
+	*Portland\ Group*)
+	  _LT_TAGVAR(lt_prog_compiler_wl, $1)='-Wl,'
+	  _LT_TAGVAR(lt_prog_compiler_pic, $1)='-fpic'
+	  _LT_TAGVAR(lt_prog_compiler_static, $1)='-Bstatic'
+	  ;;
+	esac
+	;;
+      esac
+      ;;
+
+    newsos6)
+      _LT_TAGVAR(lt_prog_compiler_pic, $1)='-KPIC'
+      _LT_TAGVAR(lt_prog_compiler_static, $1)='-Bstatic'
+      ;;
+
+    *nto* | *qnx*)
+      # QNX uses GNU C++, but need to define -shared option too, otherwise
+      # it will coredump.
+      _LT_TAGVAR(lt_prog_compiler_pic, $1)='-fPIC -shared'
+      ;;
+
+    osf3* | osf4* | osf5*)
+      _LT_TAGVAR(lt_prog_compiler_wl, $1)='-Wl,'
+      # All OSF/1 code is PIC.
+      _LT_TAGVAR(lt_prog_compiler_static, $1)='-non_shared'
+      ;;
+
+    rdos*)
+      _LT_TAGVAR(lt_prog_compiler_static, $1)='-non_shared'
+      ;;
+
+    solaris*)
+      _LT_TAGVAR(lt_prog_compiler_pic, $1)='-KPIC'
+      _LT_TAGVAR(lt_prog_compiler_static, $1)='-Bstatic'
+      case $cc_basename in
+      f77* | f90* | f95* | sunf77* | sunf90* | sunf95*)
+	_LT_TAGVAR(lt_prog_compiler_wl, $1)='-Qoption ld ';;
+      *)
+	_LT_TAGVAR(lt_prog_compiler_wl, $1)='-Wl,';;
+      esac
+      ;;
+
+    sunos4*)
+      _LT_TAGVAR(lt_prog_compiler_wl, $1)='-Qoption ld '
+      _LT_TAGVAR(lt_prog_compiler_pic, $1)='-PIC'
+      _LT_TAGVAR(lt_prog_compiler_static, $1)='-Bstatic'
+      ;;
+
+    sysv4 | sysv4.2uw2* | sysv4.3*)
+      _LT_TAGVAR(lt_prog_compiler_wl, $1)='-Wl,'
+      _LT_TAGVAR(lt_prog_compiler_pic, $1)='-KPIC'
+      _LT_TAGVAR(lt_prog_compiler_static, $1)='-Bstatic'
+      ;;
+
+    sysv4*MP*)
+      if test -d /usr/nec; then
+	_LT_TAGVAR(lt_prog_compiler_pic, $1)='-Kconform_pic'
+	_LT_TAGVAR(lt_prog_compiler_static, $1)='-Bstatic'
+      fi
+      ;;
+
+    sysv5* | unixware* | sco3.2v5* | sco5v6* | OpenUNIX*)
+      _LT_TAGVAR(lt_prog_compiler_wl, $1)='-Wl,'
+      _LT_TAGVAR(lt_prog_compiler_pic, $1)='-KPIC'
+      _LT_TAGVAR(lt_prog_compiler_static, $1)='-Bstatic'
+      ;;
+
+    unicos*)
+      _LT_TAGVAR(lt_prog_compiler_wl, $1)='-Wl,'
+      _LT_TAGVAR(lt_prog_compiler_can_build_shared, $1)=no
+      ;;
+
+    uts4*)
+      _LT_TAGVAR(lt_prog_compiler_pic, $1)='-pic'
+      _LT_TAGVAR(lt_prog_compiler_static, $1)='-Bstatic'
+      ;;
+
+    *)
+      _LT_TAGVAR(lt_prog_compiler_can_build_shared, $1)=no
+      ;;
+    esac
+  fi
+])
+case $host_os in
+  # For platforms that do not support PIC, -DPIC is meaningless:
+  *djgpp*)
+    _LT_TAGVAR(lt_prog_compiler_pic, $1)=
+    ;;
+  *)
+    _LT_TAGVAR(lt_prog_compiler_pic, $1)="$_LT_TAGVAR(lt_prog_compiler_pic, $1)@&t@m4_if([$1],[],[ -DPIC],[m4_if([$1],[CXX],[ -DPIC],[])])"
+    ;;
+esac
+
+AC_CACHE_CHECK([for $compiler option to produce PIC],
+  [_LT_TAGVAR(lt_cv_prog_compiler_pic, $1)],
+  [_LT_TAGVAR(lt_cv_prog_compiler_pic, $1)=$_LT_TAGVAR(lt_prog_compiler_pic, $1)])
+_LT_TAGVAR(lt_prog_compiler_pic, $1)=$_LT_TAGVAR(lt_cv_prog_compiler_pic, $1)
+
+#
+# Check to make sure the PIC flag actually works.
+#
+if test -n "$_LT_TAGVAR(lt_prog_compiler_pic, $1)"; then
+  _LT_COMPILER_OPTION([if $compiler PIC flag $_LT_TAGVAR(lt_prog_compiler_pic, $1) works],
+    [_LT_TAGVAR(lt_cv_prog_compiler_pic_works, $1)],
+    [$_LT_TAGVAR(lt_prog_compiler_pic, $1)@&t@m4_if([$1],[],[ -DPIC],[m4_if([$1],[CXX],[ -DPIC],[])])], [],
+    [case $_LT_TAGVAR(lt_prog_compiler_pic, $1) in
+     "" | " "*) ;;
+     *) _LT_TAGVAR(lt_prog_compiler_pic, $1)=" $_LT_TAGVAR(lt_prog_compiler_pic, $1)" ;;
+     esac],
+    [_LT_TAGVAR(lt_prog_compiler_pic, $1)=
+     _LT_TAGVAR(lt_prog_compiler_can_build_shared, $1)=no])
+fi
+_LT_TAGDECL([pic_flag], [lt_prog_compiler_pic], [1],
+	[Additional compiler flags for building library objects])
+
+_LT_TAGDECL([wl], [lt_prog_compiler_wl], [1],
+	[How to pass a linker flag through the compiler])
+#
+# Check to make sure the static flag actually works.
+#
+wl=$_LT_TAGVAR(lt_prog_compiler_wl, $1) eval lt_tmp_static_flag=\"$_LT_TAGVAR(lt_prog_compiler_static, $1)\"
+_LT_LINKER_OPTION([if $compiler static flag $lt_tmp_static_flag works],
+  _LT_TAGVAR(lt_cv_prog_compiler_static_works, $1),
+  $lt_tmp_static_flag,
+  [],
+  [_LT_TAGVAR(lt_prog_compiler_static, $1)=])
+_LT_TAGDECL([link_static_flag], [lt_prog_compiler_static], [1],
+	[Compiler flag to prevent dynamic linking])
+])# _LT_COMPILER_PIC
+
+
+# _LT_LINKER_SHLIBS([TAGNAME])
+# ----------------------------
+# See if the linker supports building shared libraries.
+m4_defun([_LT_LINKER_SHLIBS],
+[AC_REQUIRE([LT_PATH_LD])dnl
+AC_REQUIRE([LT_PATH_NM])dnl
+m4_require([_LT_PATH_MANIFEST_TOOL])dnl
+m4_require([_LT_FILEUTILS_DEFAULTS])dnl
+m4_require([_LT_DECL_EGREP])dnl
+m4_require([_LT_DECL_SED])dnl
+m4_require([_LT_CMD_GLOBAL_SYMBOLS])dnl
+m4_require([_LT_TAG_COMPILER])dnl
+AC_MSG_CHECKING([whether the $compiler linker ($LD) supports shared libraries])
+m4_if([$1], [CXX], [
+  _LT_TAGVAR(export_symbols_cmds, $1)='$NM $libobjs $convenience | $global_symbol_pipe | $SED '\''s/.* //'\'' | sort | uniq > $export_symbols'
+  _LT_TAGVAR(exclude_expsyms, $1)=['_GLOBAL_OFFSET_TABLE_|_GLOBAL__F[ID]_.*']
+  case $host_os in
+  aix[[4-9]]*)
+    # If we're using GNU nm, then we don't want the "-C" option.
+    # -C means demangle to GNU nm, but means don't demangle to AIX nm.
+    # Without the "-l" option, or with the "-B" option, AIX nm treats
+    # weak defined symbols like other global defined symbols, whereas
+    # GNU nm marks them as "W".
+    # While the 'weak' keyword is ignored in the Export File, we need
+    # it in the Import File for the 'aix-soname' feature, so we have
+    # to replace the "-B" option with "-P" for AIX nm.
+    if $NM -V 2>&1 | $GREP 'GNU' > /dev/null; then
+      _LT_TAGVAR(export_symbols_cmds, $1)='$NM -Bpg $libobjs $convenience | awk '\''{ if (((\$ 2 == "T") || (\$ 2 == "D") || (\$ 2 == "B") || (\$ 2 == "W")) && ([substr](\$ 3,1,1) != ".")) { if (\$ 2 == "W") { print \$ 3 " weak" } else { print \$ 3 } } }'\'' | sort -u > $export_symbols'
+    else
+      _LT_TAGVAR(export_symbols_cmds, $1)='`func_echo_all $NM | $SED -e '\''s/B\([[^B]]*\)$/P\1/'\''` -PCpgl $libobjs $convenience | awk '\''{ if (((\$ 2 == "T") || (\$ 2 == "D") || (\$ 2 == "B") || (\$ 2 == "W") || (\$ 2 == "V") || (\$ 2 == "Z")) && ([substr](\$ 1,1,1) != ".")) { if ((\$ 2 == "W") || (\$ 2 == "V") || (\$ 2 == "Z")) { print \$ 1 " weak" } else { print \$ 1 } } }'\'' | sort -u > $export_symbols'
+    fi
+    ;;
+  pw32*)
+    _LT_TAGVAR(export_symbols_cmds, $1)=$ltdll_cmds
+    ;;
+  cygwin* | mingw* | cegcc*)
+    case $cc_basename in
+    cl*)
+      _LT_TAGVAR(exclude_expsyms, $1)='_NULL_IMPORT_DESCRIPTOR|_IMPORT_DESCRIPTOR_.*'
+      ;;
+    *)
+      _LT_TAGVAR(export_symbols_cmds, $1)='$NM $libobjs $convenience | $global_symbol_pipe | $SED -e '\''/^[[BCDGRS]][[ ]]/s/.*[[ ]]\([[^ ]]*\)/\1 DATA/;s/^.*[[ ]]__nm__\([[^ ]]*\)[[ ]][[^ ]]*/\1 DATA/;/^I[[ ]]/d;/^[[AITW]][[ ]]/s/.* //'\'' | sort | uniq > $export_symbols'
+      _LT_TAGVAR(exclude_expsyms, $1)=['[_]+GLOBAL_OFFSET_TABLE_|[_]+GLOBAL__[FID]_.*|[_]+head_[A-Za-z0-9_]+_dll|[A-Za-z0-9_]+_dll_iname']
+      ;;
+    esac
+    ;;
+  *)
+    _LT_TAGVAR(export_symbols_cmds, $1)='$NM $libobjs $convenience | $global_symbol_pipe | $SED '\''s/.* //'\'' | sort | uniq > $export_symbols'
+    ;;
+  esac
+], [
+  runpath_var=
+  _LT_TAGVAR(allow_undefined_flag, $1)=
+  _LT_TAGVAR(always_export_symbols, $1)=no
+  _LT_TAGVAR(archive_cmds, $1)=
+  _LT_TAGVAR(archive_expsym_cmds, $1)=
+  _LT_TAGVAR(compiler_needs_object, $1)=no
+  _LT_TAGVAR(enable_shared_with_static_runtimes, $1)=no
+  _LT_TAGVAR(export_dynamic_flag_spec, $1)=
+  _LT_TAGVAR(export_symbols_cmds, $1)='$NM $libobjs $convenience | $global_symbol_pipe | $SED '\''s/.* //'\'' | sort | uniq > $export_symbols'
+  _LT_TAGVAR(hardcode_automatic, $1)=no
+  _LT_TAGVAR(hardcode_direct, $1)=no
+  _LT_TAGVAR(hardcode_direct_absolute, $1)=no
+  _LT_TAGVAR(hardcode_libdir_flag_spec, $1)=
+  _LT_TAGVAR(hardcode_libdir_separator, $1)=
+  _LT_TAGVAR(hardcode_minus_L, $1)=no
+  _LT_TAGVAR(hardcode_shlibpath_var, $1)=unsupported
+  _LT_TAGVAR(inherit_rpath, $1)=no
+  _LT_TAGVAR(link_all_deplibs, $1)=unknown
+  _LT_TAGVAR(module_cmds, $1)=
+  _LT_TAGVAR(module_expsym_cmds, $1)=
+  _LT_TAGVAR(old_archive_from_new_cmds, $1)=
+  _LT_TAGVAR(old_archive_from_expsyms_cmds, $1)=
+  _LT_TAGVAR(thread_safe_flag_spec, $1)=
+  _LT_TAGVAR(whole_archive_flag_spec, $1)=
+  # include_expsyms should be a list of space-separated symbols to be *always*
+  # included in the symbol list
+  _LT_TAGVAR(include_expsyms, $1)=
+  # exclude_expsyms can be an extended regexp of symbols to exclude
+  # it will be wrapped by ' (' and ')$', so one must not match beginning or
+  # end of line.  Example: 'a|bc|.*d.*' will exclude the symbols 'a' and 'bc',
+  # as well as any symbol that contains 'd'.
+  _LT_TAGVAR(exclude_expsyms, $1)=['_GLOBAL_OFFSET_TABLE_|_GLOBAL__F[ID]_.*']
+  # Although _GLOBAL_OFFSET_TABLE_ is a valid symbol C name, most a.out
+  # platforms (ab)use it in PIC code, but their linkers get confused if
+  # the symbol is explicitly referenced.  Since portable code cannot
+  # rely on this symbol name, it's probably fine to never include it in
+  # preloaded symbol tables.
+  # Exclude shared library initialization/finalization symbols.
+dnl Note also adjust exclude_expsyms for C++ above.
+  extract_expsyms_cmds=
+
+  case $host_os in
+  cygwin* | mingw* | pw32* | cegcc*)
+    # FIXME: the MSVC++ port hasn't been tested in a loooong time
+    # When not using gcc, we currently assume that we are using
+    # Microsoft Visual C++.
+    if test yes != "$GCC"; then
+      with_gnu_ld=no
+    fi
+    ;;
+  interix*)
+    # we just hope/assume this is gcc and not c89 (= MSVC++)
+    with_gnu_ld=yes
+    ;;
+  openbsd* | bitrig*)
+    with_gnu_ld=no
+    ;;
+  esac
+
+  _LT_TAGVAR(ld_shlibs, $1)=yes
+
+  # On some targets, GNU ld is compatible enough with the native linker
+  # that we're better off using the native interface for both.
+  lt_use_gnu_ld_interface=no
+  if test yes = "$with_gnu_ld"; then
+    case $host_os in
+      aix*)
+	# The AIX port of GNU ld has always aspired to compatibility
+	# with the native linker.  However, as the warning in the GNU ld
+	# block says, versions before 2.19.5* couldn't really create working
+	# shared libraries, regardless of the interface used.
+	case `$LD -v 2>&1` in
+	  *\ \(GNU\ Binutils\)\ 2.19.5*) ;;
+	  *\ \(GNU\ Binutils\)\ 2.[[2-9]]*) ;;
+	  *\ \(GNU\ Binutils\)\ [[3-9]]*) ;;
+	  *)
+	    lt_use_gnu_ld_interface=yes
+	    ;;
+	esac
+	;;
+      *)
+	lt_use_gnu_ld_interface=yes
+	;;
+    esac
+  fi
+
+  if test yes = "$lt_use_gnu_ld_interface"; then
+    # If archive_cmds runs LD, not CC, wlarc should be empty
+    wlarc='$wl'
+
+    # Set some defaults for GNU ld with shared library support. These
+    # are reset later if shared libraries are not supported. Putting them
+    # here allows them to be overridden if necessary.
+    runpath_var=LD_RUN_PATH
+    _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='$wl-rpath $wl$libdir'
+    _LT_TAGVAR(export_dynamic_flag_spec, $1)='$wl--export-dynamic'
+    # ancient GNU ld didn't support --whole-archive et. al.
+    if $LD --help 2>&1 | $GREP 'no-whole-archive' > /dev/null; then
+      _LT_TAGVAR(whole_archive_flag_spec, $1)=$wlarc'--whole-archive$convenience '$wlarc'--no-whole-archive'
+    else
+      _LT_TAGVAR(whole_archive_flag_spec, $1)=
+    fi
+    supports_anon_versioning=no
+    case `$LD -v | $SED -e 's/([^)]\+)\s\+//' 2>&1` in
+      *GNU\ gold*) supports_anon_versioning=yes ;;
+      *\ [[01]].* | *\ 2.[[0-9]].* | *\ 2.10.*) ;; # catch versions < 2.11
+      *\ 2.11.93.0.2\ *) supports_anon_versioning=yes ;; # RH7.3 ...
+      *\ 2.11.92.0.12\ *) supports_anon_versioning=yes ;; # Mandrake 8.2 ...
+      *\ 2.11.*) ;; # other 2.11 versions
+      *) supports_anon_versioning=yes ;;
+    esac
+
+    # See if GNU ld supports shared libraries.
+    case $host_os in
+    aix[[3-9]]*)
+      # On AIX/PPC, the GNU linker is very broken
+      if test ia64 != "$host_cpu"; then
+	_LT_TAGVAR(ld_shlibs, $1)=no
+	cat <<_LT_EOF 1>&2
+
+*** Warning: the GNU linker, at least up to release 2.19, is reported
+*** to be unable to reliably create shared libraries on AIX.
+*** Therefore, libtool is disabling shared libraries support.  If you
+*** really care for shared libraries, you may want to install binutils
+*** 2.20 or above, or modify your PATH so that a non-GNU linker is found.
+*** You will then need to restart the configuration process.
+
+_LT_EOF
+      fi
+      ;;
+
+    amigaos*)
+      case $host_cpu in
+      powerpc)
+            # see comment about AmigaOS4 .so support
+            _LT_TAGVAR(archive_cmds, $1)='$CC -shared $libobjs $deplibs $compiler_flags $wl-soname $wl$soname -o $lib'
+            _LT_TAGVAR(archive_expsym_cmds, $1)=''
+        ;;
+      m68k)
+            _LT_TAGVAR(archive_cmds, $1)='$RM $output_objdir/a2ixlibrary.data~$ECHO "#define NAME $libname" > $output_objdir/a2ixlibrary.data~$ECHO "#define LIBRARY_ID 1" >> $output_objdir/a2ixlibrary.data~$ECHO "#define VERSION $major" >> $output_objdir/a2ixlibrary.data~$ECHO "#define REVISION $revision" >> $output_objdir/a2ixlibrary.data~$AR $AR_FLAGS $lib $libobjs~$RANLIB $lib~(cd $output_objdir && a2ixlibrary -32)'
+            _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='-L$libdir'
+            _LT_TAGVAR(hardcode_minus_L, $1)=yes
+        ;;
+      esac
+      ;;
+
+    beos*)
+      if $LD --help 2>&1 | $GREP ': supported targets:.* elf' > /dev/null; then
+	_LT_TAGVAR(allow_undefined_flag, $1)=unsupported
+	# Joseph Beckenbach <jrb3@best.com> says some releases of gcc
+	# support --undefined.  This deserves some investigation.  FIXME
+	_LT_TAGVAR(archive_cmds, $1)='$CC -nostart $libobjs $deplibs $compiler_flags $wl-soname $wl$soname -o $lib'
+      else
+	_LT_TAGVAR(ld_shlibs, $1)=no
+      fi
+      ;;
+
+    cygwin* | mingw* | pw32* | cegcc*)
+      # _LT_TAGVAR(hardcode_libdir_flag_spec, $1) is actually meaningless,
+      # as there is no search path for DLLs.
+      _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='-L$libdir'
+      _LT_TAGVAR(export_dynamic_flag_spec, $1)='$wl--export-all-symbols'
+      _LT_TAGVAR(allow_undefined_flag, $1)=unsupported
+      _LT_TAGVAR(always_export_symbols, $1)=no
+      _LT_TAGVAR(enable_shared_with_static_runtimes, $1)=yes
+      _LT_TAGVAR(export_symbols_cmds, $1)='$NM $libobjs $convenience | $global_symbol_pipe | $SED -e '\''/^[[BCDGRS]][[ ]]/s/.*[[ ]]\([[^ ]]*\)/\1 DATA/;s/^.*[[ ]]__nm__\([[^ ]]*\)[[ ]][[^ ]]*/\1 DATA/;/^I[[ ]]/d;/^[[AITW]][[ ]]/s/.* //'\'' | sort | uniq > $export_symbols'
+      _LT_TAGVAR(exclude_expsyms, $1)=['[_]+GLOBAL_OFFSET_TABLE_|[_]+GLOBAL__[FID]_.*|[_]+head_[A-Za-z0-9_]+_dll|[A-Za-z0-9_]+_dll_iname']
+
+      if $LD --help 2>&1 | $GREP 'auto-import' > /dev/null; then
+        _LT_TAGVAR(archive_cmds, $1)='$CC -shared $libobjs $deplibs $compiler_flags -o $output_objdir/$soname $wl--enable-auto-image-base -Xlinker --out-implib -Xlinker $lib'
+	# If the export-symbols file already is a .def file, use it as
+	# is; otherwise, prepend EXPORTS...
+	_LT_TAGVAR(archive_expsym_cmds, $1)='if _LT_DLL_DEF_P([$export_symbols]); then
+          cp $export_symbols $output_objdir/$soname.def;
+        else
+          echo EXPORTS > $output_objdir/$soname.def;
+          cat $export_symbols >> $output_objdir/$soname.def;
+        fi~
+        $CC -shared $output_objdir/$soname.def $libobjs $deplibs $compiler_flags -o $output_objdir/$soname $wl--enable-auto-image-base -Xlinker --out-implib -Xlinker $lib'
+      else
+	_LT_TAGVAR(ld_shlibs, $1)=no
+      fi
+      ;;
+
+    haiku*)
+      _LT_TAGVAR(archive_cmds, $1)='$CC -shared $libobjs $deplibs $compiler_flags $wl-soname $wl$soname -o $lib'
+      _LT_TAGVAR(link_all_deplibs, $1)=yes
+      ;;
+
+    os2*)
+      _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='-L$libdir'
+      _LT_TAGVAR(hardcode_minus_L, $1)=yes
+      _LT_TAGVAR(allow_undefined_flag, $1)=unsupported
+      shrext_cmds=.dll
+      _LT_TAGVAR(archive_cmds, $1)='$ECHO "LIBRARY ${soname%$shared_ext} INITINSTANCE TERMINSTANCE" > $output_objdir/$libname.def~
+	$ECHO "DESCRIPTION \"$libname\"" >> $output_objdir/$libname.def~
+	$ECHO "DATA MULTIPLE NONSHARED" >> $output_objdir/$libname.def~
+	$ECHO EXPORTS >> $output_objdir/$libname.def~
+	emxexp $libobjs | $SED /"_DLL_InitTerm"/d >> $output_objdir/$libname.def~
+	$CC -Zdll -Zcrtdll -o $output_objdir/$soname $libobjs $deplibs $compiler_flags $output_objdir/$libname.def~
+	emximp -o $lib $output_objdir/$libname.def'
+      _LT_TAGVAR(archive_expsym_cmds, $1)='$ECHO "LIBRARY ${soname%$shared_ext} INITINSTANCE TERMINSTANCE" > $output_objdir/$libname.def~
+	$ECHO "DESCRIPTION \"$libname\"" >> $output_objdir/$libname.def~
+	$ECHO "DATA MULTIPLE NONSHARED" >> $output_objdir/$libname.def~
+	$ECHO EXPORTS >> $output_objdir/$libname.def~
+	prefix_cmds="$SED"~
+	if test EXPORTS = "`$SED 1q $export_symbols`"; then
+	  prefix_cmds="$prefix_cmds -e 1d";
+	fi~
+	prefix_cmds="$prefix_cmds -e \"s/^\(.*\)$/_\1/g\""~
+	cat $export_symbols | $prefix_cmds >> $output_objdir/$libname.def~
+	$CC -Zdll -Zcrtdll -o $output_objdir/$soname $libobjs $deplibs $compiler_flags $output_objdir/$libname.def~
+	emximp -o $lib $output_objdir/$libname.def'
+      _LT_TAGVAR(old_archive_From_new_cmds, $1)='emximp -o $output_objdir/${libname}_dll.a $output_objdir/$libname.def'
+      _LT_TAGVAR(enable_shared_with_static_runtimes, $1)=yes
+      ;;
+
+    interix[[3-9]]*)
+      _LT_TAGVAR(hardcode_direct, $1)=no
+      _LT_TAGVAR(hardcode_shlibpath_var, $1)=no
+      _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='$wl-rpath,$libdir'
+      _LT_TAGVAR(export_dynamic_flag_spec, $1)='$wl-E'
+      # Hack: On Interix 3.x, we cannot compile PIC because of a broken gcc.
+      # Instead, shared libraries are loaded at an image base (0x10000000 by
+      # default) and relocated if they conflict, which is a slow very memory
+      # consuming and fragmenting process.  To avoid this, we pick a random,
+      # 256 KiB-aligned image base between 0x50000000 and 0x6FFC0000 at link
+      # time.  Moving up from 0x10000000 also allows more sbrk(2) space.
+      _LT_TAGVAR(archive_cmds, $1)='$CC -shared $pic_flag $libobjs $deplibs $compiler_flags $wl-h,$soname $wl--image-base,`expr ${RANDOM-$$} % 4096 / 2 \* 262144 + 1342177280` -o $lib'
+      _LT_TAGVAR(archive_expsym_cmds, $1)='sed "s|^|_|" $export_symbols >$output_objdir/$soname.expsym~$CC -shared $pic_flag $libobjs $deplibs $compiler_flags $wl-h,$soname $wl--retain-symbols-file,$output_objdir/$soname.expsym $wl--image-base,`expr ${RANDOM-$$} % 4096 / 2 \* 262144 + 1342177280` -o $lib'
+      ;;
+
+    gnu* | linux* | tpf* | k*bsd*-gnu | kopensolaris*-gnu)
+      tmp_diet=no
+      if test linux-dietlibc = "$host_os"; then
+	case $cc_basename in
+	  diet\ *) tmp_diet=yes;;	# linux-dietlibc with static linking (!diet-dyn)
+	esac
+      fi
+      if $LD --help 2>&1 | $EGREP ': supported targets:.* elf' > /dev/null \
+	 && test no = "$tmp_diet"
+      then
+	tmp_addflag=' $pic_flag'
+	tmp_sharedflag='-shared'
+	case $cc_basename,$host_cpu in
+        pgcc*)				# Portland Group C compiler
+	  _LT_TAGVAR(whole_archive_flag_spec, $1)='$wl--whole-archive`for conv in $convenience\"\"; do test  -n \"$conv\" && new_convenience=\"$new_convenience,$conv\"; done; func_echo_all \"$new_convenience\"` $wl--no-whole-archive'
+	  tmp_addflag=' $pic_flag'
+	  ;;
+	pgf77* | pgf90* | pgf95* | pgfortran*)
+					# Portland Group f77 and f90 compilers
+	  _LT_TAGVAR(whole_archive_flag_spec, $1)='$wl--whole-archive`for conv in $convenience\"\"; do test  -n \"$conv\" && new_convenience=\"$new_convenience,$conv\"; done; func_echo_all \"$new_convenience\"` $wl--no-whole-archive'
+	  tmp_addflag=' $pic_flag -Mnomain' ;;
+	ecc*,ia64* | icc*,ia64*)	# Intel C compiler on ia64
+	  tmp_addflag=' -i_dynamic' ;;
+	efc*,ia64* | ifort*,ia64*)	# Intel Fortran compiler on ia64
+	  tmp_addflag=' -i_dynamic -nofor_main' ;;
+	ifc* | ifort*)			# Intel Fortran compiler
+	  tmp_addflag=' -nofor_main' ;;
+	lf95*)				# Lahey Fortran 8.1
+	  _LT_TAGVAR(whole_archive_flag_spec, $1)=
+	  tmp_sharedflag='--shared' ;;
+        nagfor*)                        # NAGFOR 5.3
+          tmp_sharedflag='-Wl,-shared' ;;
+	xl[[cC]]* | bgxl[[cC]]* | mpixl[[cC]]*) # IBM XL C 8.0 on PPC (deal with xlf below)
+	  tmp_sharedflag='-qmkshrobj'
+	  tmp_addflag= ;;
+	nvcc*)	# Cuda Compiler Driver 2.2
+	  _LT_TAGVAR(whole_archive_flag_spec, $1)='$wl--whole-archive`for conv in $convenience\"\"; do test  -n \"$conv\" && new_convenience=\"$new_convenience,$conv\"; done; func_echo_all \"$new_convenience\"` $wl--no-whole-archive'
+	  _LT_TAGVAR(compiler_needs_object, $1)=yes
+	  ;;
+	esac
+	case `$CC -V 2>&1 | sed 5q` in
+	*Sun\ C*)			# Sun C 5.9
+	  _LT_TAGVAR(whole_archive_flag_spec, $1)='$wl--whole-archive`new_convenience=; for conv in $convenience\"\"; do test -z \"$conv\" || new_convenience=\"$new_convenience,$conv\"; done; func_echo_all \"$new_convenience\"` $wl--no-whole-archive'
+	  _LT_TAGVAR(compiler_needs_object, $1)=yes
+	  tmp_sharedflag='-G' ;;
+	*Sun\ F*)			# Sun Fortran 8.3
+	  tmp_sharedflag='-G' ;;
+	esac
+	_LT_TAGVAR(archive_cmds, $1)='$CC '"$tmp_sharedflag""$tmp_addflag"' $libobjs $deplibs $compiler_flags $wl-soname $wl$soname -o $lib'
+
+        if test yes = "$supports_anon_versioning"; then
+          _LT_TAGVAR(archive_expsym_cmds, $1)='echo "{ global:" > $output_objdir/$libname.ver~
+            cat $export_symbols | sed -e "s/\(.*\)/\1;/" >> $output_objdir/$libname.ver~
+            echo "local: *; };" >> $output_objdir/$libname.ver~
+            $CC '"$tmp_sharedflag""$tmp_addflag"' $libobjs $deplibs $compiler_flags $wl-soname $wl$soname $wl-version-script $wl$output_objdir/$libname.ver -o $lib'
+        fi
+
+	case $cc_basename in
+	tcc*)
+	  _LT_TAGVAR(export_dynamic_flag_spec, $1)='-rdynamic'
+	  ;;
+	xlf* | bgf* | bgxlf* | mpixlf*)
+	  # IBM XL Fortran 10.1 on PPC cannot create shared libs itself
+	  _LT_TAGVAR(whole_archive_flag_spec, $1)='--whole-archive$convenience --no-whole-archive'
+	  _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='$wl-rpath $wl$libdir'
+	  _LT_TAGVAR(archive_cmds, $1)='$LD -shared $libobjs $deplibs $linker_flags -soname $soname -o $lib'
+	  if test yes = "$supports_anon_versioning"; then
+	    _LT_TAGVAR(archive_expsym_cmds, $1)='echo "{ global:" > $output_objdir/$libname.ver~
+              cat $export_symbols | sed -e "s/\(.*\)/\1;/" >> $output_objdir/$libname.ver~
+              echo "local: *; };" >> $output_objdir/$libname.ver~
+              $LD -shared $libobjs $deplibs $linker_flags -soname $soname -version-script $output_objdir/$libname.ver -o $lib'
+	  fi
+	  ;;
+	esac
+      else
+        _LT_TAGVAR(ld_shlibs, $1)=no
+      fi
+      ;;
+
+    netbsd*)
+      if echo __ELF__ | $CC -E - | $GREP __ELF__ >/dev/null; then
+	_LT_TAGVAR(archive_cmds, $1)='$LD -Bshareable $libobjs $deplibs $linker_flags -o $lib'
+	wlarc=
+      else
+	_LT_TAGVAR(archive_cmds, $1)='$CC -shared $pic_flag $libobjs $deplibs $compiler_flags $wl-soname $wl$soname -o $lib'
+	_LT_TAGVAR(archive_expsym_cmds, $1)='$CC -shared $pic_flag $libobjs $deplibs $compiler_flags $wl-soname $wl$soname $wl-retain-symbols-file $wl$export_symbols -o $lib'
+      fi
+      ;;
+
+    solaris*)
+      if $LD -v 2>&1 | $GREP 'BFD 2\.8' > /dev/null; then
+	_LT_TAGVAR(ld_shlibs, $1)=no
+	cat <<_LT_EOF 1>&2
+
+*** Warning: The releases 2.8.* of the GNU linker cannot reliably
+*** create shared libraries on Solaris systems.  Therefore, libtool
+*** is disabling shared libraries support.  We urge you to upgrade GNU
+*** binutils to release 2.9.1 or newer.  Another option is to modify
+*** your PATH or compiler configuration so that the native linker is
+*** used, and then restart.
+
+_LT_EOF
+      elif $LD --help 2>&1 | $GREP ': supported targets:.* elf' > /dev/null; then
+	_LT_TAGVAR(archive_cmds, $1)='$CC -shared $pic_flag $libobjs $deplibs $compiler_flags $wl-soname $wl$soname -o $lib'
+	_LT_TAGVAR(archive_expsym_cmds, $1)='$CC -shared $pic_flag $libobjs $deplibs $compiler_flags $wl-soname $wl$soname $wl-retain-symbols-file $wl$export_symbols -o $lib'
+      else
+	_LT_TAGVAR(ld_shlibs, $1)=no
+      fi
+      ;;
+
+    sysv5* | sco3.2v5* | sco5v6* | unixware* | OpenUNIX*)
+      case `$LD -v 2>&1` in
+        *\ [[01]].* | *\ 2.[[0-9]].* | *\ 2.1[[0-5]].*)
+	_LT_TAGVAR(ld_shlibs, $1)=no
+	cat <<_LT_EOF 1>&2
+
+*** Warning: Releases of the GNU linker prior to 2.16.91.0.3 cannot
+*** reliably create shared libraries on SCO systems.  Therefore, libtool
+*** is disabling shared libraries support.  We urge you to upgrade GNU
+*** binutils to release 2.16.91.0.3 or newer.  Another option is to modify
+*** your PATH or compiler configuration so that the native linker is
+*** used, and then restart.
+
+_LT_EOF
+	;;
+	*)
+	  # For security reasons, it is highly recommended that you always
+	  # use absolute paths for naming shared libraries, and exclude the
+	  # DT_RUNPATH tag from executables and libraries.  But doing so
+	  # requires that you compile everything twice, which is a pain.
+	  if $LD --help 2>&1 | $GREP ': supported targets:.* elf' > /dev/null; then
+	    _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='$wl-rpath $wl$libdir'
+	    _LT_TAGVAR(archive_cmds, $1)='$CC -shared $libobjs $deplibs $compiler_flags $wl-soname $wl$soname -o $lib'
+	    _LT_TAGVAR(archive_expsym_cmds, $1)='$CC -shared $libobjs $deplibs $compiler_flags $wl-soname $wl$soname $wl-retain-symbols-file $wl$export_symbols -o $lib'
+	  else
+	    _LT_TAGVAR(ld_shlibs, $1)=no
+	  fi
+	;;
+      esac
+      ;;
+
+    sunos4*)
+      _LT_TAGVAR(archive_cmds, $1)='$LD -assert pure-text -Bshareable -o $lib $libobjs $deplibs $linker_flags'
+      wlarc=
+      _LT_TAGVAR(hardcode_direct, $1)=yes
+      _LT_TAGVAR(hardcode_shlibpath_var, $1)=no
+      ;;
+
+    *)
+      if $LD --help 2>&1 | $GREP ': supported targets:.* elf' > /dev/null; then
+	_LT_TAGVAR(archive_cmds, $1)='$CC -shared $pic_flag $libobjs $deplibs $compiler_flags $wl-soname $wl$soname -o $lib'
+	_LT_TAGVAR(archive_expsym_cmds, $1)='$CC -shared $pic_flag $libobjs $deplibs $compiler_flags $wl-soname $wl$soname $wl-retain-symbols-file $wl$export_symbols -o $lib'
+      else
+	_LT_TAGVAR(ld_shlibs, $1)=no
+      fi
+      ;;
+    esac
+
+    if test no = "$_LT_TAGVAR(ld_shlibs, $1)"; then
+      runpath_var=
+      _LT_TAGVAR(hardcode_libdir_flag_spec, $1)=
+      _LT_TAGVAR(export_dynamic_flag_spec, $1)=
+      _LT_TAGVAR(whole_archive_flag_spec, $1)=
+    fi
+  else
+    # PORTME fill in a description of your system's linker (not GNU ld)
+    case $host_os in
+    aix3*)
+      _LT_TAGVAR(allow_undefined_flag, $1)=unsupported
+      _LT_TAGVAR(always_export_symbols, $1)=yes
+      _LT_TAGVAR(archive_expsym_cmds, $1)='$LD -o $output_objdir/$soname $libobjs $deplibs $linker_flags -bE:$export_symbols -T512 -H512 -bM:SRE~$AR $AR_FLAGS $lib $output_objdir/$soname'
+      # Note: this linker hardcodes the directories in LIBPATH if there
+      # are no directories specified by -L.
+      _LT_TAGVAR(hardcode_minus_L, $1)=yes
+      if test yes = "$GCC" && test -z "$lt_prog_compiler_static"; then
+	# Neither direct hardcoding nor static linking is supported with a
+	# broken collect2.
+	_LT_TAGVAR(hardcode_direct, $1)=unsupported
+      fi
+      ;;
+
+    aix[[4-9]]*)
+      if test ia64 = "$host_cpu"; then
+	# On IA64, the linker does run time linking by default, so we don't
+	# have to do anything special.
+	aix_use_runtimelinking=no
+	exp_sym_flag='-Bexport'
+	no_entry_flag=
+      else
+	# If we're using GNU nm, then we don't want the "-C" option.
+	# -C means demangle to GNU nm, but means don't demangle to AIX nm.
+	# Without the "-l" option, or with the "-B" option, AIX nm treats
+	# weak defined symbols like other global defined symbols, whereas
+	# GNU nm marks them as "W".
+	# While the 'weak' keyword is ignored in the Export File, we need
+	# it in the Import File for the 'aix-soname' feature, so we have
+	# to replace the "-B" option with "-P" for AIX nm.
+	if $NM -V 2>&1 | $GREP 'GNU' > /dev/null; then
+	  _LT_TAGVAR(export_symbols_cmds, $1)='$NM -Bpg $libobjs $convenience | awk '\''{ if (((\$ 2 == "T") || (\$ 2 == "D") || (\$ 2 == "B") || (\$ 2 == "W")) && ([substr](\$ 3,1,1) != ".")) { if (\$ 2 == "W") { print \$ 3 " weak" } else { print \$ 3 } } }'\'' | sort -u > $export_symbols'
+	else
+	  _LT_TAGVAR(export_symbols_cmds, $1)='`func_echo_all $NM | $SED -e '\''s/B\([[^B]]*\)$/P\1/'\''` -PCpgl $libobjs $convenience | awk '\''{ if (((\$ 2 == "T") || (\$ 2 == "D") || (\$ 2 == "B") || (\$ 2 == "W") || (\$ 2 == "V") || (\$ 2 == "Z")) && ([substr](\$ 1,1,1) != ".")) { if ((\$ 2 == "W") || (\$ 2 == "V") || (\$ 2 == "Z")) { print \$ 1 " weak" } else { print \$ 1 } } }'\'' | sort -u > $export_symbols'
+	fi
+	aix_use_runtimelinking=no
+
+	# Test if we are trying to use run time linking or normal
+	# AIX style linking. If -brtl is somewhere in LDFLAGS, we
+	# have runtime linking enabled, and use it for executables.
+	# For shared libraries, we enable/disable runtime linking
+	# depending on the kind of the shared library created -
+	# when "with_aix_soname,aix_use_runtimelinking" is:
+	# "aix,no"   lib.a(lib.so.V) shared, rtl:no,  for executables
+	# "aix,yes"  lib.so          shared, rtl:yes, for executables
+	#            lib.a           static archive
+	# "both,no"  lib.so.V(shr.o) shared, rtl:yes
+	#            lib.a(lib.so.V) shared, rtl:no,  for executables
+	# "both,yes" lib.so.V(shr.o) shared, rtl:yes, for executables
+	#            lib.a(lib.so.V) shared, rtl:no
+	# "svr4,*"   lib.so.V(shr.o) shared, rtl:yes, for executables
+	#            lib.a           static archive
+	case $host_os in aix4.[[23]]|aix4.[[23]].*|aix[[5-9]]*)
+	  for ld_flag in $LDFLAGS; do
+	  if (test x-brtl = "x$ld_flag" || test x-Wl,-brtl = "x$ld_flag"); then
+	    aix_use_runtimelinking=yes
+	    break
+	  fi
+	  done
+	  if test svr4,no = "$with_aix_soname,$aix_use_runtimelinking"; then
+	    # With aix-soname=svr4, we create the lib.so.V shared archives only,
+	    # so we don't have lib.a shared libs to link our executables.
+	    # We have to force runtime linking in this case.
+	    aix_use_runtimelinking=yes
+	    LDFLAGS="$LDFLAGS -Wl,-brtl"
+	  fi
+	  ;;
+	esac
+
+	exp_sym_flag='-bexport'
+	no_entry_flag='-bnoentry'
+      fi
+
+      # When large executables or shared objects are built, AIX ld can
+      # have problems creating the table of contents.  If linking a library
+      # or program results in "error TOC overflow" add -mminimal-toc to
+      # CXXFLAGS/CFLAGS for g++/gcc.  In the cases where that is not
+      # enough to fix the problem, add -Wl,-bbigtoc to LDFLAGS.
+
+      _LT_TAGVAR(archive_cmds, $1)=''
+      _LT_TAGVAR(hardcode_direct, $1)=yes
+      _LT_TAGVAR(hardcode_direct_absolute, $1)=yes
+      _LT_TAGVAR(hardcode_libdir_separator, $1)=':'
+      _LT_TAGVAR(link_all_deplibs, $1)=yes
+      _LT_TAGVAR(file_list_spec, $1)='$wl-f,'
+      case $with_aix_soname,$aix_use_runtimelinking in
+      aix,*) ;; # traditional, no import file
+      svr4,* | *,yes) # use import file
+	# The Import File defines what to hardcode.
+	_LT_TAGVAR(hardcode_direct, $1)=no
+	_LT_TAGVAR(hardcode_direct_absolute, $1)=no
+	;;
+      esac
+
+      if test yes = "$GCC"; then
+	case $host_os in aix4.[[012]]|aix4.[[012]].*)
+	# We only want to do this on AIX 4.2 and lower, the check
+	# below for broken collect2 doesn't work under 4.3+
+	  collect2name=`$CC -print-prog-name=collect2`
+	  if test -f "$collect2name" &&
+	   strings "$collect2name" | $GREP resolve_lib_name >/dev/null
+	  then
+	  # We have reworked collect2
+	  :
+	  else
+	  # We have old collect2
+	  _LT_TAGVAR(hardcode_direct, $1)=unsupported
+	  # It fails to find uninstalled libraries when the uninstalled
+	  # path is not listed in the libpath.  Setting hardcode_minus_L
+	  # to unsupported forces relinking
+	  _LT_TAGVAR(hardcode_minus_L, $1)=yes
+	  _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='-L$libdir'
+	  _LT_TAGVAR(hardcode_libdir_separator, $1)=
+	  fi
+	  ;;
+	esac
+	shared_flag='-shared'
+	if test yes = "$aix_use_runtimelinking"; then
+	  shared_flag="$shared_flag "'$wl-G'
+	fi
+	# Need to ensure runtime linking is disabled for the traditional
+	# shared library, or the linker may eventually find shared libraries
+	# /with/ Import File - we do not want to mix them.
+	shared_flag_aix='-shared'
+	shared_flag_svr4='-shared $wl-G'
+      else
+	# not using gcc
+	if test ia64 = "$host_cpu"; then
+	# VisualAge C++, Version 5.5 for AIX 5L for IA-64, Beta 3 Release
+	# chokes on -Wl,-G. The following line is correct:
+	  shared_flag='-G'
+	else
+	  if test yes = "$aix_use_runtimelinking"; then
+	    shared_flag='$wl-G'
+	  else
+	    shared_flag='$wl-bM:SRE'
+	  fi
+	  shared_flag_aix='$wl-bM:SRE'
+	  shared_flag_svr4='$wl-G'
+	fi
+      fi
+
+      _LT_TAGVAR(export_dynamic_flag_spec, $1)='$wl-bexpall'
+      # It seems that -bexpall does not export symbols beginning with
+      # underscore (_), so it is better to generate a list of symbols to export.
+      _LT_TAGVAR(always_export_symbols, $1)=yes
+      if test aix,yes = "$with_aix_soname,$aix_use_runtimelinking"; then
+	# Warning - without using the other runtime loading flags (-brtl),
+	# -berok will link without error, but may produce a broken library.
+	_LT_TAGVAR(allow_undefined_flag, $1)='-berok'
+        # Determine the default libpath from the value encoded in an
+        # empty executable.
+        _LT_SYS_MODULE_PATH_AIX([$1])
+        _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='$wl-blibpath:$libdir:'"$aix_libpath"
+        _LT_TAGVAR(archive_expsym_cmds, $1)='$CC -o $output_objdir/$soname $libobjs $deplibs $wl'$no_entry_flag' $compiler_flags `if test -n "$allow_undefined_flag"; then func_echo_all "$wl$allow_undefined_flag"; else :; fi` $wl'$exp_sym_flag:\$export_symbols' '$shared_flag
+      else
+	if test ia64 = "$host_cpu"; then
+	  _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='$wl-R $libdir:/usr/lib:/lib'
+	  _LT_TAGVAR(allow_undefined_flag, $1)="-z nodefs"
+	  _LT_TAGVAR(archive_expsym_cmds, $1)="\$CC $shared_flag"' -o $output_objdir/$soname $libobjs $deplibs '"\$wl$no_entry_flag"' $compiler_flags $wl$allow_undefined_flag '"\$wl$exp_sym_flag:\$export_symbols"
+	else
+	 # Determine the default libpath from the value encoded in an
+	 # empty executable.
+	 _LT_SYS_MODULE_PATH_AIX([$1])
+	 _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='$wl-blibpath:$libdir:'"$aix_libpath"
+	  # Warning - without using the other run time loading flags,
+	  # -berok will link without error, but may produce a broken library.
+	  _LT_TAGVAR(no_undefined_flag, $1)=' $wl-bernotok'
+	  _LT_TAGVAR(allow_undefined_flag, $1)=' $wl-berok'
+	  if test yes = "$with_gnu_ld"; then
+	    # We only use this code for GNU lds that support --whole-archive.
+	    _LT_TAGVAR(whole_archive_flag_spec, $1)='$wl--whole-archive$convenience $wl--no-whole-archive'
+	  else
+	    # Exported symbols can be pulled into shared objects from archives
+	    _LT_TAGVAR(whole_archive_flag_spec, $1)='$convenience'
+	  fi
+	  _LT_TAGVAR(archive_cmds_need_lc, $1)=yes
+	  _LT_TAGVAR(archive_expsym_cmds, $1)='$RM -r $output_objdir/$realname.d~$MKDIR $output_objdir/$realname.d'
+	  # -brtl affects multiple linker settings, -berok does not and is overridden later
+	  compiler_flags_filtered='`func_echo_all "$compiler_flags " | $SED -e "s%-brtl\\([[, ]]\\)%-berok\\1%g"`'
+	  if test svr4 != "$with_aix_soname"; then
+	    # This is similar to how AIX traditionally builds its shared libraries.
+	    _LT_TAGVAR(archive_expsym_cmds, $1)="$_LT_TAGVAR(archive_expsym_cmds, $1)"'~$CC '$shared_flag_aix' -o $output_objdir/$realname.d/$soname $libobjs $deplibs $wl-bnoentry '$compiler_flags_filtered'$wl-bE:$export_symbols$allow_undefined_flag~$AR $AR_FLAGS $output_objdir/$libname$release.a $output_objdir/$realname.d/$soname'
+	  fi
+	  if test aix != "$with_aix_soname"; then
+	    _LT_TAGVAR(archive_expsym_cmds, $1)="$_LT_TAGVAR(archive_expsym_cmds, $1)"'~$CC '$shared_flag_svr4' -o $output_objdir/$realname.d/$shared_archive_member_spec.o $libobjs $deplibs $wl-bnoentry '$compiler_flags_filtered'$wl-bE:$export_symbols$allow_undefined_flag~$STRIP -e $output_objdir/$realname.d/$shared_archive_member_spec.o~( func_echo_all "#! $soname($shared_archive_member_spec.o)"; if test shr_64 = "$shared_archive_member_spec"; then func_echo_all "# 64"; else func_echo_all "# 32"; fi; cat $export_symbols ) > $output_objdir/$realname.d/$shared_archive_member_spec.imp~$AR $AR_FLAGS $output_objdir/$soname $output_objdir/$realname.d/$shared_archive_member_spec.o $output_objdir/$realname.d/$shared_archive_member_spec.imp'
+	  else
+	    # used by -dlpreopen to get the symbols
+	    _LT_TAGVAR(archive_expsym_cmds, $1)="$_LT_TAGVAR(archive_expsym_cmds, $1)"'~$MV  $output_objdir/$realname.d/$soname $output_objdir'
+	  fi
+	  _LT_TAGVAR(archive_expsym_cmds, $1)="$_LT_TAGVAR(archive_expsym_cmds, $1)"'~$RM -r $output_objdir/$realname.d'
+	fi
+      fi
+      ;;
+
+    amigaos*)
+      case $host_cpu in
+      powerpc)
+            # see comment about AmigaOS4 .so support
+            _LT_TAGVAR(archive_cmds, $1)='$CC -shared $libobjs $deplibs $compiler_flags $wl-soname $wl$soname -o $lib'
+            _LT_TAGVAR(archive_expsym_cmds, $1)=''
+        ;;
+      m68k)
+            _LT_TAGVAR(archive_cmds, $1)='$RM $output_objdir/a2ixlibrary.data~$ECHO "#define NAME $libname" > $output_objdir/a2ixlibrary.data~$ECHO "#define LIBRARY_ID 1" >> $output_objdir/a2ixlibrary.data~$ECHO "#define VERSION $major" >> $output_objdir/a2ixlibrary.data~$ECHO "#define REVISION $revision" >> $output_objdir/a2ixlibrary.data~$AR $AR_FLAGS $lib $libobjs~$RANLIB $lib~(cd $output_objdir && a2ixlibrary -32)'
+            _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='-L$libdir'
+            _LT_TAGVAR(hardcode_minus_L, $1)=yes
+        ;;
+      esac
+      ;;
+
+    bsdi[[45]]*)
+      _LT_TAGVAR(export_dynamic_flag_spec, $1)=-rdynamic
+      ;;
+
+    cygwin* | mingw* | pw32* | cegcc*)
+      # When not using gcc, we currently assume that we are using
+      # Microsoft Visual C++.
+      # hardcode_libdir_flag_spec is actually meaningless, as there is
+      # no search path for DLLs.
+      case $cc_basename in
+      cl*)
+	# Native MSVC
+	_LT_TAGVAR(hardcode_libdir_flag_spec, $1)=' '
+	_LT_TAGVAR(allow_undefined_flag, $1)=unsupported
+	_LT_TAGVAR(always_export_symbols, $1)=yes
+	_LT_TAGVAR(file_list_spec, $1)='@'
+	# Tell ltmain to make .lib files, not .a files.
+	libext=lib
+	# Tell ltmain to make .dll files, not .so files.
+	shrext_cmds=.dll
+	# FIXME: Setting linknames here is a bad hack.
+	_LT_TAGVAR(archive_cmds, $1)='$CC -o $output_objdir/$soname $libobjs $compiler_flags $deplibs -Wl,-DLL,-IMPLIB:"$tool_output_objdir$libname.dll.lib"~linknames='
+	_LT_TAGVAR(archive_expsym_cmds, $1)='if _LT_DLL_DEF_P([$export_symbols]); then
+            cp "$export_symbols" "$output_objdir/$soname.def";
+            echo "$tool_output_objdir$soname.def" > "$output_objdir/$soname.exp";
+          else
+            $SED -e '\''s/^/-link -EXPORT:/'\'' < $export_symbols > $output_objdir/$soname.exp;
+          fi~
+          $CC -o $tool_output_objdir$soname $libobjs $compiler_flags $deplibs "@$tool_output_objdir$soname.exp" -Wl,-DLL,-IMPLIB:"$tool_output_objdir$libname.dll.lib"~
+          linknames='
+	# The linker will not automatically build a static lib if we build a DLL.
+	# _LT_TAGVAR(old_archive_from_new_cmds, $1)='true'
+	_LT_TAGVAR(enable_shared_with_static_runtimes, $1)=yes
+	_LT_TAGVAR(exclude_expsyms, $1)='_NULL_IMPORT_DESCRIPTOR|_IMPORT_DESCRIPTOR_.*'
+	_LT_TAGVAR(export_symbols_cmds, $1)='$NM $libobjs $convenience | $global_symbol_pipe | $SED -e '\''/^[[BCDGRS]][[ ]]/s/.*[[ ]]\([[^ ]]*\)/\1,DATA/'\'' | $SED -e '\''/^[[AITW]][[ ]]/s/.*[[ ]]//'\'' | sort | uniq > $export_symbols'
+	# Don't use ranlib
+	_LT_TAGVAR(old_postinstall_cmds, $1)='chmod 644 $oldlib'
+	_LT_TAGVAR(postlink_cmds, $1)='lt_outputfile="@OUTPUT@"~
+          lt_tool_outputfile="@TOOL_OUTPUT@"~
+          case $lt_outputfile in
+            *.exe|*.EXE) ;;
+            *)
+              lt_outputfile=$lt_outputfile.exe
+              lt_tool_outputfile=$lt_tool_outputfile.exe
+              ;;
+          esac~
+          if test : != "$MANIFEST_TOOL" && test -f "$lt_outputfile.manifest"; then
+            $MANIFEST_TOOL -manifest "$lt_tool_outputfile.manifest" -outputresource:"$lt_tool_outputfile" || exit 1;
+            $RM "$lt_outputfile.manifest";
+          fi'
+	;;
+      *)
+	# Assume MSVC wrapper
+	_LT_TAGVAR(hardcode_libdir_flag_spec, $1)=' '
+	_LT_TAGVAR(allow_undefined_flag, $1)=unsupported
+	# Tell ltmain to make .lib files, not .a files.
+	libext=lib
+	# Tell ltmain to make .dll files, not .so files.
+	shrext_cmds=.dll
+	# FIXME: Setting linknames here is a bad hack.
+	_LT_TAGVAR(archive_cmds, $1)='$CC -o $lib $libobjs $compiler_flags `func_echo_all "$deplibs" | $SED '\''s/ -lc$//'\''` -link -dll~linknames='
+	# The linker will automatically build a .lib file if we build a DLL.
+	_LT_TAGVAR(old_archive_from_new_cmds, $1)='true'
+	# FIXME: Should let the user specify the lib program.
+	_LT_TAGVAR(old_archive_cmds, $1)='lib -OUT:$oldlib$oldobjs$old_deplibs'
+	_LT_TAGVAR(enable_shared_with_static_runtimes, $1)=yes
+	;;
+      esac
+      ;;
+
+    darwin* | rhapsody*)
+      _LT_DARWIN_LINKER_FEATURES($1)
+      ;;
+
+    dgux*)
+      _LT_TAGVAR(archive_cmds, $1)='$LD -G -h $soname -o $lib $libobjs $deplibs $linker_flags'
+      _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='-L$libdir'
+      _LT_TAGVAR(hardcode_shlibpath_var, $1)=no
+      ;;
+
+    # FreeBSD 2.2.[012] allows us to include c++rt0.o to get C++ constructor
+    # support.  Future versions do this automatically, but an explicit c++rt0.o
+    # does not break anything, and helps significantly (at the cost of a little
+    # extra space).
+    freebsd2.2*)
+      _LT_TAGVAR(archive_cmds, $1)='$LD -Bshareable -o $lib $libobjs $deplibs $linker_flags /usr/lib/c++rt0.o'
+      _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='-R$libdir'
+      _LT_TAGVAR(hardcode_direct, $1)=yes
+      _LT_TAGVAR(hardcode_shlibpath_var, $1)=no
+      ;;
+
+    # Unfortunately, older versions of FreeBSD 2 do not have this feature.
+    freebsd2.*)
+      _LT_TAGVAR(archive_cmds, $1)='$LD -Bshareable -o $lib $libobjs $deplibs $linker_flags'
+      _LT_TAGVAR(hardcode_direct, $1)=yes
+      _LT_TAGVAR(hardcode_minus_L, $1)=yes
+      _LT_TAGVAR(hardcode_shlibpath_var, $1)=no
+      ;;
+
+    # FreeBSD 3 and greater uses gcc -shared to do shared libraries.
+    freebsd* | dragonfly*)
+      _LT_TAGVAR(archive_cmds, $1)='$CC -shared $pic_flag -o $lib $libobjs $deplibs $compiler_flags'
+      _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='-R$libdir'
+      _LT_TAGVAR(hardcode_direct, $1)=yes
+      _LT_TAGVAR(hardcode_shlibpath_var, $1)=no
+      ;;
+
+    hpux9*)
+      if test yes = "$GCC"; then
+	_LT_TAGVAR(archive_cmds, $1)='$RM $output_objdir/$soname~$CC -shared $pic_flag $wl+b $wl$install_libdir -o $output_objdir/$soname $libobjs $deplibs $compiler_flags~test "x$output_objdir/$soname" = "x$lib" || mv $output_objdir/$soname $lib'
+      else
+	_LT_TAGVAR(archive_cmds, $1)='$RM $output_objdir/$soname~$LD -b +b $install_libdir -o $output_objdir/$soname $libobjs $deplibs $linker_flags~test "x$output_objdir/$soname" = "x$lib" || mv $output_objdir/$soname $lib'
+      fi
+      _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='$wl+b $wl$libdir'
+      _LT_TAGVAR(hardcode_libdir_separator, $1)=:
+      _LT_TAGVAR(hardcode_direct, $1)=yes
+
+      # hardcode_minus_L: Not really in the search PATH,
+      # but as the default location of the library.
+      _LT_TAGVAR(hardcode_minus_L, $1)=yes
+      _LT_TAGVAR(export_dynamic_flag_spec, $1)='$wl-E'
+      ;;
+
+    hpux10*)
+      if test yes,no = "$GCC,$with_gnu_ld"; then
+	_LT_TAGVAR(archive_cmds, $1)='$CC -shared $pic_flag $wl+h $wl$soname $wl+b $wl$install_libdir -o $lib $libobjs $deplibs $compiler_flags'
+      else
+	_LT_TAGVAR(archive_cmds, $1)='$LD -b +h $soname +b $install_libdir -o $lib $libobjs $deplibs $linker_flags'
+      fi
+      if test no = "$with_gnu_ld"; then
+	_LT_TAGVAR(hardcode_libdir_flag_spec, $1)='$wl+b $wl$libdir'
+	_LT_TAGVAR(hardcode_libdir_separator, $1)=:
+	_LT_TAGVAR(hardcode_direct, $1)=yes
+	_LT_TAGVAR(hardcode_direct_absolute, $1)=yes
+	_LT_TAGVAR(export_dynamic_flag_spec, $1)='$wl-E'
+	# hardcode_minus_L: Not really in the search PATH,
+	# but as the default location of the library.
+	_LT_TAGVAR(hardcode_minus_L, $1)=yes
+      fi
+      ;;
+
+    hpux11*)
+      if test yes,no = "$GCC,$with_gnu_ld"; then
+	case $host_cpu in
+	hppa*64*)
+	  _LT_TAGVAR(archive_cmds, $1)='$CC -shared $wl+h $wl$soname -o $lib $libobjs $deplibs $compiler_flags'
+	  ;;
+	ia64*)
+	  _LT_TAGVAR(archive_cmds, $1)='$CC -shared $pic_flag $wl+h $wl$soname $wl+nodefaultrpath -o $lib $libobjs $deplibs $compiler_flags'
+	  ;;
+	*)
+	  _LT_TAGVAR(archive_cmds, $1)='$CC -shared $pic_flag $wl+h $wl$soname $wl+b $wl$install_libdir -o $lib $libobjs $deplibs $compiler_flags'
+	  ;;
+	esac
+      else
+	case $host_cpu in
+	hppa*64*)
+	  _LT_TAGVAR(archive_cmds, $1)='$CC -b $wl+h $wl$soname -o $lib $libobjs $deplibs $compiler_flags'
+	  ;;
+	ia64*)
+	  _LT_TAGVAR(archive_cmds, $1)='$CC -b $wl+h $wl$soname $wl+nodefaultrpath -o $lib $libobjs $deplibs $compiler_flags'
+	  ;;
+	*)
+	m4_if($1, [], [
+	  # Older versions of the 11.00 compiler do not understand -b yet
+	  # (HP92453-01 A.11.01.20 doesn't, HP92453-01 B.11.X.35175-35176.GP does)
+	  _LT_LINKER_OPTION([if $CC understands -b],
+	    _LT_TAGVAR(lt_cv_prog_compiler__b, $1), [-b],
+	    [_LT_TAGVAR(archive_cmds, $1)='$CC -b $wl+h $wl$soname $wl+b $wl$install_libdir -o $lib $libobjs $deplibs $compiler_flags'],
+	    [_LT_TAGVAR(archive_cmds, $1)='$LD -b +h $soname +b $install_libdir -o $lib $libobjs $deplibs $linker_flags'])],
+	  [_LT_TAGVAR(archive_cmds, $1)='$CC -b $wl+h $wl$soname $wl+b $wl$install_libdir -o $lib $libobjs $deplibs $compiler_flags'])
+	  ;;
+	esac
+      fi
+      if test no = "$with_gnu_ld"; then
+	_LT_TAGVAR(hardcode_libdir_flag_spec, $1)='$wl+b $wl$libdir'
+	_LT_TAGVAR(hardcode_libdir_separator, $1)=:
+
+	case $host_cpu in
+	hppa*64*|ia64*)
+	  _LT_TAGVAR(hardcode_direct, $1)=no
+	  _LT_TAGVAR(hardcode_shlibpath_var, $1)=no
+	  ;;
+	*)
+	  _LT_TAGVAR(hardcode_direct, $1)=yes
+	  _LT_TAGVAR(hardcode_direct_absolute, $1)=yes
+	  _LT_TAGVAR(export_dynamic_flag_spec, $1)='$wl-E'
+
+	  # hardcode_minus_L: Not really in the search PATH,
+	  # but as the default location of the library.
+	  _LT_TAGVAR(hardcode_minus_L, $1)=yes
+	  ;;
+	esac
+      fi
+      ;;
+
+    irix5* | irix6* | nonstopux*)
+      if test yes = "$GCC"; then
+	_LT_TAGVAR(archive_cmds, $1)='$CC -shared $pic_flag $libobjs $deplibs $compiler_flags $wl-soname $wl$soname `test -n "$verstring" && func_echo_all "$wl-set_version $wl$verstring"` $wl-update_registry $wl$output_objdir/so_locations -o $lib'
+	# Try to use the -exported_symbol ld option, if it does not
+	# work, assume that -exports_file does not work either and
+	# implicitly export all symbols.
+	# This should be the same for all languages, so no per-tag cache variable.
+	AC_CACHE_CHECK([whether the $host_os linker accepts -exported_symbol],
+	  [lt_cv_irix_exported_symbol],
+	  [save_LDFLAGS=$LDFLAGS
+	   LDFLAGS="$LDFLAGS -shared $wl-exported_symbol ${wl}foo $wl-update_registry $wl/dev/null"
+	   AC_LINK_IFELSE(
+	     [AC_LANG_SOURCE(
+	        [AC_LANG_CASE([C], [[int foo (void) { return 0; }]],
+			      [C++], [[int foo (void) { return 0; }]],
+			      [Fortran 77], [[
+      subroutine foo
+      end]],
+			      [Fortran], [[
+      subroutine foo
+      end]])])],
+	      [lt_cv_irix_exported_symbol=yes],
+	      [lt_cv_irix_exported_symbol=no])
+           LDFLAGS=$save_LDFLAGS])
+	if test yes = "$lt_cv_irix_exported_symbol"; then
+          _LT_TAGVAR(archive_expsym_cmds, $1)='$CC -shared $pic_flag $libobjs $deplibs $compiler_flags $wl-soname $wl$soname `test -n "$verstring" && func_echo_all "$wl-set_version $wl$verstring"` $wl-update_registry $wl$output_objdir/so_locations $wl-exports_file $wl$export_symbols -o $lib'
+	fi
+      else
+	_LT_TAGVAR(archive_cmds, $1)='$CC -shared $libobjs $deplibs $compiler_flags -soname $soname `test -n "$verstring" && func_echo_all "-set_version $verstring"` -update_registry $output_objdir/so_locations -o $lib'
+	_LT_TAGVAR(archive_expsym_cmds, $1)='$CC -shared $libobjs $deplibs $compiler_flags -soname $soname `test -n "$verstring" && func_echo_all "-set_version $verstring"` -update_registry $output_objdir/so_locations -exports_file $export_symbols -o $lib'
+      fi
+      _LT_TAGVAR(archive_cmds_need_lc, $1)='no'
+      _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='$wl-rpath $wl$libdir'
+      _LT_TAGVAR(hardcode_libdir_separator, $1)=:
+      _LT_TAGVAR(inherit_rpath, $1)=yes
+      _LT_TAGVAR(link_all_deplibs, $1)=yes
+      ;;
+
+    linux*)
+      case $cc_basename in
+      tcc*)
+	# Fabrice Bellard et al's Tiny C Compiler
+	_LT_TAGVAR(ld_shlibs, $1)=yes
+	_LT_TAGVAR(archive_cmds, $1)='$CC -shared $pic_flag -o $lib $libobjs $deplibs $compiler_flags'
+	;;
+      esac
+      ;;
+
+    netbsd*)
+      if echo __ELF__ | $CC -E - | $GREP __ELF__ >/dev/null; then
+	_LT_TAGVAR(archive_cmds, $1)='$LD -Bshareable -o $lib $libobjs $deplibs $linker_flags'  # a.out
+      else
+	_LT_TAGVAR(archive_cmds, $1)='$LD -shared -o $lib $libobjs $deplibs $linker_flags'      # ELF
+      fi
+      _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='-R$libdir'
+      _LT_TAGVAR(hardcode_direct, $1)=yes
+      _LT_TAGVAR(hardcode_shlibpath_var, $1)=no
+      ;;
+
+    newsos6)
+      _LT_TAGVAR(archive_cmds, $1)='$LD -G -h $soname -o $lib $libobjs $deplibs $linker_flags'
+      _LT_TAGVAR(hardcode_direct, $1)=yes
+      _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='$wl-rpath $wl$libdir'
+      _LT_TAGVAR(hardcode_libdir_separator, $1)=:
+      _LT_TAGVAR(hardcode_shlibpath_var, $1)=no
+      ;;
+
+    *nto* | *qnx*)
+      ;;
+
+    openbsd* | bitrig*)
+      if test -f /usr/libexec/ld.so; then
+	_LT_TAGVAR(hardcode_direct, $1)=yes
+	_LT_TAGVAR(hardcode_shlibpath_var, $1)=no
+	_LT_TAGVAR(hardcode_direct_absolute, $1)=yes
+	if test -z "`echo __ELF__ | $CC -E - | $GREP __ELF__`"; then
+	  _LT_TAGVAR(archive_cmds, $1)='$CC -shared $pic_flag -o $lib $libobjs $deplibs $compiler_flags'
+	  _LT_TAGVAR(archive_expsym_cmds, $1)='$CC -shared $pic_flag -o $lib $libobjs $deplibs $compiler_flags $wl-retain-symbols-file,$export_symbols'
+	  _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='$wl-rpath,$libdir'
+	  _LT_TAGVAR(export_dynamic_flag_spec, $1)='$wl-E'
+	else
+	  _LT_TAGVAR(archive_cmds, $1)='$CC -shared $pic_flag -o $lib $libobjs $deplibs $compiler_flags'
+	  _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='$wl-rpath,$libdir'
+	fi
+      else
+	_LT_TAGVAR(ld_shlibs, $1)=no
+      fi
+      ;;
+
+    os2*)
+      _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='-L$libdir'
+      _LT_TAGVAR(hardcode_minus_L, $1)=yes
+      _LT_TAGVAR(allow_undefined_flag, $1)=unsupported
+      shrext_cmds=.dll
+      _LT_TAGVAR(archive_cmds, $1)='$ECHO "LIBRARY ${soname%$shared_ext} INITINSTANCE TERMINSTANCE" > $output_objdir/$libname.def~
+	$ECHO "DESCRIPTION \"$libname\"" >> $output_objdir/$libname.def~
+	$ECHO "DATA MULTIPLE NONSHARED" >> $output_objdir/$libname.def~
+	$ECHO EXPORTS >> $output_objdir/$libname.def~
+	emxexp $libobjs | $SED /"_DLL_InitTerm"/d >> $output_objdir/$libname.def~
+	$CC -Zdll -Zcrtdll -o $output_objdir/$soname $libobjs $deplibs $compiler_flags $output_objdir/$libname.def~
+	emximp -o $lib $output_objdir/$libname.def'
+      _LT_TAGVAR(archive_expsym_cmds, $1)='$ECHO "LIBRARY ${soname%$shared_ext} INITINSTANCE TERMINSTANCE" > $output_objdir/$libname.def~
+	$ECHO "DESCRIPTION \"$libname\"" >> $output_objdir/$libname.def~
+	$ECHO "DATA MULTIPLE NONSHARED" >> $output_objdir/$libname.def~
+	$ECHO EXPORTS >> $output_objdir/$libname.def~
+	prefix_cmds="$SED"~
+	if test EXPORTS = "`$SED 1q $export_symbols`"; then
+	  prefix_cmds="$prefix_cmds -e 1d";
+	fi~
+	prefix_cmds="$prefix_cmds -e \"s/^\(.*\)$/_\1/g\""~
+	cat $export_symbols | $prefix_cmds >> $output_objdir/$libname.def~
+	$CC -Zdll -Zcrtdll -o $output_objdir/$soname $libobjs $deplibs $compiler_flags $output_objdir/$libname.def~
+	emximp -o $lib $output_objdir/$libname.def'
+      _LT_TAGVAR(old_archive_From_new_cmds, $1)='emximp -o $output_objdir/${libname}_dll.a $output_objdir/$libname.def'
+      _LT_TAGVAR(enable_shared_with_static_runtimes, $1)=yes
+      ;;
+
+    osf3*)
+      if test yes = "$GCC"; then
+	_LT_TAGVAR(allow_undefined_flag, $1)=' $wl-expect_unresolved $wl\*'
+	_LT_TAGVAR(archive_cmds, $1)='$CC -shared$allow_undefined_flag $libobjs $deplibs $compiler_flags $wl-soname $wl$soname `test -n "$verstring" && func_echo_all "$wl-set_version $wl$verstring"` $wl-update_registry $wl$output_objdir/so_locations -o $lib'
+      else
+	_LT_TAGVAR(allow_undefined_flag, $1)=' -expect_unresolved \*'
+	_LT_TAGVAR(archive_cmds, $1)='$CC -shared$allow_undefined_flag $libobjs $deplibs $compiler_flags -soname $soname `test -n "$verstring" && func_echo_all "-set_version $verstring"` -update_registry $output_objdir/so_locations -o $lib'
+      fi
+      _LT_TAGVAR(archive_cmds_need_lc, $1)='no'
+      _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='$wl-rpath $wl$libdir'
+      _LT_TAGVAR(hardcode_libdir_separator, $1)=:
+      ;;
+
+    osf4* | osf5*)	# as osf3* with the addition of -msym flag
+      if test yes = "$GCC"; then
+	_LT_TAGVAR(allow_undefined_flag, $1)=' $wl-expect_unresolved $wl\*'
+	_LT_TAGVAR(archive_cmds, $1)='$CC -shared$allow_undefined_flag $pic_flag $libobjs $deplibs $compiler_flags $wl-msym $wl-soname $wl$soname `test -n "$verstring" && func_echo_all "$wl-set_version $wl$verstring"` $wl-update_registry $wl$output_objdir/so_locations -o $lib'
+	_LT_TAGVAR(hardcode_libdir_flag_spec, $1)='$wl-rpath $wl$libdir'
+      else
+	_LT_TAGVAR(allow_undefined_flag, $1)=' -expect_unresolved \*'
+	_LT_TAGVAR(archive_cmds, $1)='$CC -shared$allow_undefined_flag $libobjs $deplibs $compiler_flags -msym -soname $soname `test -n "$verstring" && func_echo_all "-set_version $verstring"` -update_registry $output_objdir/so_locations -o $lib'
+	_LT_TAGVAR(archive_expsym_cmds, $1)='for i in `cat $export_symbols`; do printf "%s %s\\n" -exported_symbol "\$i" >> $lib.exp; done; printf "%s\\n" "-hidden">> $lib.exp~
+          $CC -shared$allow_undefined_flag $wl-input $wl$lib.exp $compiler_flags $libobjs $deplibs -soname $soname `test -n "$verstring" && $ECHO "-set_version $verstring"` -update_registry $output_objdir/so_locations -o $lib~$RM $lib.exp'
+
+	# Both c and cxx compiler support -rpath directly
+	_LT_TAGVAR(hardcode_libdir_flag_spec, $1)='-rpath $libdir'
+      fi
+      _LT_TAGVAR(archive_cmds_need_lc, $1)='no'
+      _LT_TAGVAR(hardcode_libdir_separator, $1)=:
+      ;;
+
+    solaris*)
+      _LT_TAGVAR(no_undefined_flag, $1)=' -z defs'
+      if test yes = "$GCC"; then
+	wlarc='$wl'
+	_LT_TAGVAR(archive_cmds, $1)='$CC -shared $pic_flag $wl-z ${wl}text $wl-h $wl$soname -o $lib $libobjs $deplibs $compiler_flags'
+	_LT_TAGVAR(archive_expsym_cmds, $1)='echo "{ global:" > $lib.exp~cat $export_symbols | $SED -e "s/\(.*\)/\1;/" >> $lib.exp~echo "local: *; };" >> $lib.exp~
+          $CC -shared $pic_flag $wl-z ${wl}text $wl-M $wl$lib.exp $wl-h $wl$soname -o $lib $libobjs $deplibs $compiler_flags~$RM $lib.exp'
+      else
+	case `$CC -V 2>&1` in
+	*"Compilers 5.0"*)
+	  wlarc=''
+	  _LT_TAGVAR(archive_cmds, $1)='$LD -G$allow_undefined_flag -h $soname -o $lib $libobjs $deplibs $linker_flags'
+	  _LT_TAGVAR(archive_expsym_cmds, $1)='echo "{ global:" > $lib.exp~cat $export_symbols | $SED -e "s/\(.*\)/\1;/" >> $lib.exp~echo "local: *; };" >> $lib.exp~
+            $LD -G$allow_undefined_flag -M $lib.exp -h $soname -o $lib $libobjs $deplibs $linker_flags~$RM $lib.exp'
+	  ;;
+	*)
+	  wlarc='$wl'
+	  _LT_TAGVAR(archive_cmds, $1)='$CC -G$allow_undefined_flag -h $soname -o $lib $libobjs $deplibs $compiler_flags'
+	  _LT_TAGVAR(archive_expsym_cmds, $1)='echo "{ global:" > $lib.exp~cat $export_symbols | $SED -e "s/\(.*\)/\1;/" >> $lib.exp~echo "local: *; };" >> $lib.exp~
+            $CC -G$allow_undefined_flag -M $lib.exp -h $soname -o $lib $libobjs $deplibs $compiler_flags~$RM $lib.exp'
+	  ;;
+	esac
+      fi
+      _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='-R$libdir'
+      _LT_TAGVAR(hardcode_shlibpath_var, $1)=no
+      case $host_os in
+      solaris2.[[0-5]] | solaris2.[[0-5]].*) ;;
+      *)
+	# The compiler driver will combine and reorder linker options,
+	# but understands '-z linker_flag'.  GCC discards it without '$wl',
+	# but is careful enough not to reorder.
+	# Supported since Solaris 2.6 (maybe 2.5.1?)
+	if test yes = "$GCC"; then
+	  _LT_TAGVAR(whole_archive_flag_spec, $1)='$wl-z ${wl}allextract$convenience $wl-z ${wl}defaultextract'
+	else
+	  _LT_TAGVAR(whole_archive_flag_spec, $1)='-z allextract$convenience -z defaultextract'
+	fi
+	;;
+      esac
+      _LT_TAGVAR(link_all_deplibs, $1)=yes
+      ;;
+
+    sunos4*)
+      if test sequent = "$host_vendor"; then
+	# Use $CC to link under sequent, because it throws in some extra .o
+	# files that make .init and .fini sections work.
+	_LT_TAGVAR(archive_cmds, $1)='$CC -G $wl-h $soname -o $lib $libobjs $deplibs $compiler_flags'
+      else
+	_LT_TAGVAR(archive_cmds, $1)='$LD -assert pure-text -Bstatic -o $lib $libobjs $deplibs $linker_flags'
+      fi
+      _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='-L$libdir'
+      _LT_TAGVAR(hardcode_direct, $1)=yes
+      _LT_TAGVAR(hardcode_minus_L, $1)=yes
+      _LT_TAGVAR(hardcode_shlibpath_var, $1)=no
+      ;;
+
+    sysv4)
+      case $host_vendor in
+	sni)
+	  _LT_TAGVAR(archive_cmds, $1)='$LD -G -h $soname -o $lib $libobjs $deplibs $linker_flags'
+	  _LT_TAGVAR(hardcode_direct, $1)=yes # is this really true???
+	;;
+	siemens)
+	  ## LD is ld it makes a PLAMLIB
+	  ## CC just makes a GrossModule.
+	  _LT_TAGVAR(archive_cmds, $1)='$LD -G -o $lib $libobjs $deplibs $linker_flags'
+	  _LT_TAGVAR(reload_cmds, $1)='$CC -r -o $output$reload_objs'
+	  _LT_TAGVAR(hardcode_direct, $1)=no
+        ;;
+	motorola)
+	  _LT_TAGVAR(archive_cmds, $1)='$LD -G -h $soname -o $lib $libobjs $deplibs $linker_flags'
+	  _LT_TAGVAR(hardcode_direct, $1)=no #Motorola manual says yes, but my tests say they lie
+	;;
+      esac
+      runpath_var='LD_RUN_PATH'
+      _LT_TAGVAR(hardcode_shlibpath_var, $1)=no
+      ;;
+
+    sysv4.3*)
+      _LT_TAGVAR(archive_cmds, $1)='$LD -G -h $soname -o $lib $libobjs $deplibs $linker_flags'
+      _LT_TAGVAR(hardcode_shlibpath_var, $1)=no
+      _LT_TAGVAR(export_dynamic_flag_spec, $1)='-Bexport'
+      ;;
+
+    sysv4*MP*)
+      if test -d /usr/nec; then
+	_LT_TAGVAR(archive_cmds, $1)='$LD -G -h $soname -o $lib $libobjs $deplibs $linker_flags'
+	_LT_TAGVAR(hardcode_shlibpath_var, $1)=no
+	runpath_var=LD_RUN_PATH
+	hardcode_runpath_var=yes
+	_LT_TAGVAR(ld_shlibs, $1)=yes
+      fi
+      ;;
+
+    sysv4*uw2* | sysv5OpenUNIX* | sysv5UnixWare7.[[01]].[[10]]* | unixware7* | sco3.2v5.0.[[024]]*)
+      _LT_TAGVAR(no_undefined_flag, $1)='$wl-z,text'
+      _LT_TAGVAR(archive_cmds_need_lc, $1)=no
+      _LT_TAGVAR(hardcode_shlibpath_var, $1)=no
+      runpath_var='LD_RUN_PATH'
+
+      if test yes = "$GCC"; then
+	_LT_TAGVAR(archive_cmds, $1)='$CC -shared $wl-h,$soname -o $lib $libobjs $deplibs $compiler_flags'
+	_LT_TAGVAR(archive_expsym_cmds, $1)='$CC -shared $wl-Bexport:$export_symbols $wl-h,$soname -o $lib $libobjs $deplibs $compiler_flags'
+      else
+	_LT_TAGVAR(archive_cmds, $1)='$CC -G $wl-h,$soname -o $lib $libobjs $deplibs $compiler_flags'
+	_LT_TAGVAR(archive_expsym_cmds, $1)='$CC -G $wl-Bexport:$export_symbols $wl-h,$soname -o $lib $libobjs $deplibs $compiler_flags'
+      fi
+      ;;
+
+    sysv5* | sco3.2v5* | sco5v6*)
+      # Note: We CANNOT use -z defs as we might desire, because we do not
+      # link with -lc, and that would cause any symbols used from libc to
+      # always be unresolved, which means just about no library would
+      # ever link correctly.  If we're not using GNU ld we use -z text
+      # though, which does catch some bad symbols but isn't as heavy-handed
+      # as -z defs.
+      _LT_TAGVAR(no_undefined_flag, $1)='$wl-z,text'
+      _LT_TAGVAR(allow_undefined_flag, $1)='$wl-z,nodefs'
+      _LT_TAGVAR(archive_cmds_need_lc, $1)=no
+      _LT_TAGVAR(hardcode_shlibpath_var, $1)=no
+      _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='$wl-R,$libdir'
+      _LT_TAGVAR(hardcode_libdir_separator, $1)=':'
+      _LT_TAGVAR(link_all_deplibs, $1)=yes
+      _LT_TAGVAR(export_dynamic_flag_spec, $1)='$wl-Bexport'
+      runpath_var='LD_RUN_PATH'
+
+      if test yes = "$GCC"; then
+	_LT_TAGVAR(archive_cmds, $1)='$CC -shared $wl-h,$soname -o $lib $libobjs $deplibs $compiler_flags'
+	_LT_TAGVAR(archive_expsym_cmds, $1)='$CC -shared $wl-Bexport:$export_symbols $wl-h,$soname -o $lib $libobjs $deplibs $compiler_flags'
+      else
+	_LT_TAGVAR(archive_cmds, $1)='$CC -G $wl-h,$soname -o $lib $libobjs $deplibs $compiler_flags'
+	_LT_TAGVAR(archive_expsym_cmds, $1)='$CC -G $wl-Bexport:$export_symbols $wl-h,$soname -o $lib $libobjs $deplibs $compiler_flags'
+      fi
+      ;;
+
+    uts4*)
+      _LT_TAGVAR(archive_cmds, $1)='$LD -G -h $soname -o $lib $libobjs $deplibs $linker_flags'
+      _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='-L$libdir'
+      _LT_TAGVAR(hardcode_shlibpath_var, $1)=no
+      ;;
+
+    *)
+      _LT_TAGVAR(ld_shlibs, $1)=no
+      ;;
+    esac
+
+    if test sni = "$host_vendor"; then
+      case $host in
+      sysv4 | sysv4.2uw2* | sysv4.3* | sysv5*)
+	_LT_TAGVAR(export_dynamic_flag_spec, $1)='$wl-Blargedynsym'
+	;;
+      esac
+    fi
+  fi
+])
+AC_MSG_RESULT([$_LT_TAGVAR(ld_shlibs, $1)])
+test no = "$_LT_TAGVAR(ld_shlibs, $1)" && can_build_shared=no
+
+_LT_TAGVAR(with_gnu_ld, $1)=$with_gnu_ld
+
+_LT_DECL([], [libext], [0], [Old archive suffix (normally "a")])dnl
+_LT_DECL([], [shrext_cmds], [1], [Shared library suffix (normally ".so")])dnl
+_LT_DECL([], [extract_expsyms_cmds], [2],
+    [The commands to extract the exported symbol list from a shared archive])
+
+#
+# Do we need to explicitly link libc?
+#
+case "x$_LT_TAGVAR(archive_cmds_need_lc, $1)" in
+x|xyes)
+  # Assume -lc should be added
+  _LT_TAGVAR(archive_cmds_need_lc, $1)=yes
+
+  if test yes,yes = "$GCC,$enable_shared"; then
+    case $_LT_TAGVAR(archive_cmds, $1) in
+    *'~'*)
+      # FIXME: we may have to deal with multi-command sequences.
+      ;;
+    '$CC '*)
+      # Test whether the compiler implicitly links with -lc since on some
+      # systems, -lgcc has to come before -lc. If gcc already passes -lc
+      # to ld, don't add -lc before -lgcc.
+      AC_CACHE_CHECK([whether -lc should be explicitly linked in],
+	[lt_cv_]_LT_TAGVAR(archive_cmds_need_lc, $1),
+	[$RM conftest*
+	echo "$lt_simple_compile_test_code" > conftest.$ac_ext
+
+	if AC_TRY_EVAL(ac_compile) 2>conftest.err; then
+	  soname=conftest
+	  lib=conftest
+	  libobjs=conftest.$ac_objext
+	  deplibs=
+	  wl=$_LT_TAGVAR(lt_prog_compiler_wl, $1)
+	  pic_flag=$_LT_TAGVAR(lt_prog_compiler_pic, $1)
+	  compiler_flags=-v
+	  linker_flags=-v
+	  verstring=
+	  output_objdir=.
+	  libname=conftest
+	  lt_save_allow_undefined_flag=$_LT_TAGVAR(allow_undefined_flag, $1)
+	  _LT_TAGVAR(allow_undefined_flag, $1)=
+	  if AC_TRY_EVAL(_LT_TAGVAR(archive_cmds, $1) 2\>\&1 \| $GREP \" -lc \" \>/dev/null 2\>\&1)
+	  then
+	    lt_cv_[]_LT_TAGVAR(archive_cmds_need_lc, $1)=no
+	  else
+	    lt_cv_[]_LT_TAGVAR(archive_cmds_need_lc, $1)=yes
+	  fi
+	  _LT_TAGVAR(allow_undefined_flag, $1)=$lt_save_allow_undefined_flag
+	else
+	  cat conftest.err 1>&5
+	fi
+	$RM conftest*
+	])
+      _LT_TAGVAR(archive_cmds_need_lc, $1)=$lt_cv_[]_LT_TAGVAR(archive_cmds_need_lc, $1)
+      ;;
+    esac
+  fi
+  ;;
+esac
+
+_LT_TAGDECL([build_libtool_need_lc], [archive_cmds_need_lc], [0],
+    [Whether or not to add -lc for building shared libraries])
+_LT_TAGDECL([allow_libtool_libs_with_static_runtimes],
+    [enable_shared_with_static_runtimes], [0],
+    [Whether or not to disallow shared libs when runtime libs are static])
+_LT_TAGDECL([], [export_dynamic_flag_spec], [1],
+    [Compiler flag to allow reflexive dlopens])
+_LT_TAGDECL([], [whole_archive_flag_spec], [1],
+    [Compiler flag to generate shared objects directly from archives])
+_LT_TAGDECL([], [compiler_needs_object], [1],
+    [Whether the compiler copes with passing no objects directly])
+_LT_TAGDECL([], [old_archive_from_new_cmds], [2],
+    [Create an old-style archive from a shared archive])
+_LT_TAGDECL([], [old_archive_from_expsyms_cmds], [2],
+    [Create a temporary old-style archive to link instead of a shared archive])
+_LT_TAGDECL([], [archive_cmds], [2], [Commands used to build a shared archive])
+_LT_TAGDECL([], [archive_expsym_cmds], [2])
+_LT_TAGDECL([], [module_cmds], [2],
+    [Commands used to build a loadable module if different from building
+    a shared archive.])
+_LT_TAGDECL([], [module_expsym_cmds], [2])
+_LT_TAGDECL([], [with_gnu_ld], [1],
+    [Whether we are building with GNU ld or not])
+_LT_TAGDECL([], [allow_undefined_flag], [1],
+    [Flag that allows shared libraries with undefined symbols to be built])
+_LT_TAGDECL([], [no_undefined_flag], [1],
+    [Flag that enforces no undefined symbols])
+_LT_TAGDECL([], [hardcode_libdir_flag_spec], [1],
+    [Flag to hardcode $libdir into a binary during linking.
+    This must work even if $libdir does not exist])
+_LT_TAGDECL([], [hardcode_libdir_separator], [1],
+    [Whether we need a single "-rpath" flag with a separated argument])
+_LT_TAGDECL([], [hardcode_direct], [0],
+    [Set to "yes" if using DIR/libNAME$shared_ext during linking hardcodes
+    DIR into the resulting binary])
+_LT_TAGDECL([], [hardcode_direct_absolute], [0],
+    [Set to "yes" if using DIR/libNAME$shared_ext during linking hardcodes
+    DIR into the resulting binary and the resulting library dependency is
+    "absolute", i.e impossible to change by setting $shlibpath_var if the
+    library is relocated])
+_LT_TAGDECL([], [hardcode_minus_L], [0],
+    [Set to "yes" if using the -LDIR flag during linking hardcodes DIR
+    into the resulting binary])
+_LT_TAGDECL([], [hardcode_shlibpath_var], [0],
+    [Set to "yes" if using SHLIBPATH_VAR=DIR during linking hardcodes DIR
+    into the resulting binary])
+_LT_TAGDECL([], [hardcode_automatic], [0],
+    [Set to "yes" if building a shared library automatically hardcodes DIR
+    into the library and all subsequent libraries and executables linked
+    against it])
+_LT_TAGDECL([], [inherit_rpath], [0],
+    [Set to yes if linker adds runtime paths of dependent libraries
+    to runtime path list])
+_LT_TAGDECL([], [link_all_deplibs], [0],
+    [Whether libtool must link a program against all its dependency libraries])
+_LT_TAGDECL([], [always_export_symbols], [0],
+    [Set to "yes" if exported symbols are required])
+_LT_TAGDECL([], [export_symbols_cmds], [2],
+    [The commands to list exported symbols])
+_LT_TAGDECL([], [exclude_expsyms], [1],
+    [Symbols that should not be listed in the preloaded symbols])
+_LT_TAGDECL([], [include_expsyms], [1],
+    [Symbols that must always be exported])
+_LT_TAGDECL([], [prelink_cmds], [2],
+    [Commands necessary for linking programs (against libraries) with templates])
+_LT_TAGDECL([], [postlink_cmds], [2],
+    [Commands necessary for finishing linking programs])
+_LT_TAGDECL([], [file_list_spec], [1],
+    [Specify filename containing input files])
+dnl FIXME: Not yet implemented
+dnl _LT_TAGDECL([], [thread_safe_flag_spec], [1],
+dnl    [Compiler flag to generate thread safe objects])
+])# _LT_LINKER_SHLIBS
+
+
+# _LT_LANG_C_CONFIG([TAG])
+# ------------------------
+# Ensure that the configuration variables for a C compiler are suitably
+# defined.  These variables are subsequently used by _LT_CONFIG to write
+# the compiler configuration to 'libtool'.
+m4_defun([_LT_LANG_C_CONFIG],
+[m4_require([_LT_DECL_EGREP])dnl
+lt_save_CC=$CC
+AC_LANG_PUSH(C)
+
+# Source file extension for C test sources.
+ac_ext=c
+
+# Object file extension for compiled C test sources.
+objext=o
+_LT_TAGVAR(objext, $1)=$objext
+
+# Code to be used in simple compile tests
+lt_simple_compile_test_code="int some_variable = 0;"
+
+# Code to be used in simple link tests
+lt_simple_link_test_code='int main(){return(0);}'
+
+_LT_TAG_COMPILER
+# Save the default compiler, since it gets overwritten when the other
+# tags are being tested, and _LT_TAGVAR(compiler, []) is a NOP.
+compiler_DEFAULT=$CC
+
+# save warnings/boilerplate of simple test code
+_LT_COMPILER_BOILERPLATE
+_LT_LINKER_BOILERPLATE
+
+## CAVEAT EMPTOR:
+## There is no encapsulation within the following macros, do not change
+## the running order or otherwise move them around unless you know exactly
+## what you are doing...
+if test -n "$compiler"; then
+  _LT_COMPILER_NO_RTTI($1)
+  _LT_COMPILER_PIC($1)
+  _LT_COMPILER_C_O($1)
+  _LT_COMPILER_FILE_LOCKS($1)
+  _LT_LINKER_SHLIBS($1)
+  _LT_SYS_DYNAMIC_LINKER($1)
+  _LT_LINKER_HARDCODE_LIBPATH($1)
+  LT_SYS_DLOPEN_SELF
+  _LT_CMD_STRIPLIB
+
+  # Report what library types will actually be built
+  AC_MSG_CHECKING([if libtool supports shared libraries])
+  AC_MSG_RESULT([$can_build_shared])
+
+  AC_MSG_CHECKING([whether to build shared libraries])
+  test no = "$can_build_shared" && enable_shared=no
+
+  # On AIX, shared libraries and static libraries use the same namespace, and
+  # are all built from PIC.
+  case $host_os in
+  aix3*)
+    test yes = "$enable_shared" && enable_static=no
+    if test -n "$RANLIB"; then
+      archive_cmds="$archive_cmds~\$RANLIB \$lib"
+      postinstall_cmds='$RANLIB $lib'
+    fi
+    ;;
+
+  aix[[4-9]]*)
+    if test ia64 != "$host_cpu"; then
+      case $enable_shared,$with_aix_soname,$aix_use_runtimelinking in
+      yes,aix,yes) ;;			# shared object as lib.so file only
+      yes,svr4,*) ;;			# shared object as lib.so archive member only
+      yes,*) enable_static=no ;;	# shared object in lib.a archive as well
+      esac
+    fi
+    ;;
+  esac
+  AC_MSG_RESULT([$enable_shared])
+
+  AC_MSG_CHECKING([whether to build static libraries])
+  # Make sure either enable_shared or enable_static is yes.
+  test yes = "$enable_shared" || enable_static=yes
+  AC_MSG_RESULT([$enable_static])
+
+  _LT_CONFIG($1)
+fi
+AC_LANG_POP
+CC=$lt_save_CC
+])# _LT_LANG_C_CONFIG
+
+
+# _LT_LANG_CXX_CONFIG([TAG])
+# --------------------------
+# Ensure that the configuration variables for a C++ compiler are suitably
+# defined.  These variables are subsequently used by _LT_CONFIG to write
+# the compiler configuration to 'libtool'.
+m4_defun([_LT_LANG_CXX_CONFIG],
+[m4_require([_LT_FILEUTILS_DEFAULTS])dnl
+m4_require([_LT_DECL_EGREP])dnl
+m4_require([_LT_PATH_MANIFEST_TOOL])dnl
+if test -n "$CXX" && ( test no != "$CXX" &&
+    ( (test g++ = "$CXX" && `g++ -v >/dev/null 2>&1` ) ||
+    (test g++ != "$CXX"))); then
+  AC_PROG_CXXCPP
+else
+  _lt_caught_CXX_error=yes
+fi
+
+AC_LANG_PUSH(C++)
+_LT_TAGVAR(archive_cmds_need_lc, $1)=no
+_LT_TAGVAR(allow_undefined_flag, $1)=
+_LT_TAGVAR(always_export_symbols, $1)=no
+_LT_TAGVAR(archive_expsym_cmds, $1)=
+_LT_TAGVAR(compiler_needs_object, $1)=no
+_LT_TAGVAR(export_dynamic_flag_spec, $1)=
+_LT_TAGVAR(hardcode_direct, $1)=no
+_LT_TAGVAR(hardcode_direct_absolute, $1)=no
+_LT_TAGVAR(hardcode_libdir_flag_spec, $1)=
+_LT_TAGVAR(hardcode_libdir_separator, $1)=
+_LT_TAGVAR(hardcode_minus_L, $1)=no
+_LT_TAGVAR(hardcode_shlibpath_var, $1)=unsupported
+_LT_TAGVAR(hardcode_automatic, $1)=no
+_LT_TAGVAR(inherit_rpath, $1)=no
+_LT_TAGVAR(module_cmds, $1)=
+_LT_TAGVAR(module_expsym_cmds, $1)=
+_LT_TAGVAR(link_all_deplibs, $1)=unknown
+_LT_TAGVAR(old_archive_cmds, $1)=$old_archive_cmds
+_LT_TAGVAR(reload_flag, $1)=$reload_flag
+_LT_TAGVAR(reload_cmds, $1)=$reload_cmds
+_LT_TAGVAR(no_undefined_flag, $1)=
+_LT_TAGVAR(whole_archive_flag_spec, $1)=
+_LT_TAGVAR(enable_shared_with_static_runtimes, $1)=no
+
+# Source file extension for C++ test sources.
+ac_ext=cpp
+
+# Object file extension for compiled C++ test sources.
+objext=o
+_LT_TAGVAR(objext, $1)=$objext
+
+# No sense in running all these tests if we already determined that
+# the CXX compiler isn't working.  Some variables (like enable_shared)
+# are currently assumed to apply to all compilers on this platform,
+# and will be corrupted by setting them based on a non-working compiler.
+if test yes != "$_lt_caught_CXX_error"; then
+  # Code to be used in simple compile tests
+  lt_simple_compile_test_code="int some_variable = 0;"
+
+  # Code to be used in simple link tests
+  lt_simple_link_test_code='int main(int, char *[[]]) { return(0); }'
+
+  # ltmain only uses $CC for tagged configurations so make sure $CC is set.
+  _LT_TAG_COMPILER
+
+  # save warnings/boilerplate of simple test code
+  _LT_COMPILER_BOILERPLATE
+  _LT_LINKER_BOILERPLATE
+
+  # Allow CC to be a program name with arguments.
+  lt_save_CC=$CC
+  lt_save_CFLAGS=$CFLAGS
+  lt_save_LD=$LD
+  lt_save_GCC=$GCC
+  GCC=$GXX
+  lt_save_with_gnu_ld=$with_gnu_ld
+  lt_save_path_LD=$lt_cv_path_LD
+  if test -n "${lt_cv_prog_gnu_ldcxx+set}"; then
+    lt_cv_prog_gnu_ld=$lt_cv_prog_gnu_ldcxx
+  else
+    $as_unset lt_cv_prog_gnu_ld
+  fi
+  if test -n "${lt_cv_path_LDCXX+set}"; then
+    lt_cv_path_LD=$lt_cv_path_LDCXX
+  else
+    $as_unset lt_cv_path_LD
+  fi
+  test -z "${LDCXX+set}" || LD=$LDCXX
+  CC=${CXX-"c++"}
+  CFLAGS=$CXXFLAGS
+  compiler=$CC
+  _LT_TAGVAR(compiler, $1)=$CC
+  _LT_CC_BASENAME([$compiler])
+
+  if test -n "$compiler"; then
+    # We don't want -fno-exception when compiling C++ code, so set the
+    # no_builtin_flag separately
+    if test yes = "$GXX"; then
+      _LT_TAGVAR(lt_prog_compiler_no_builtin_flag, $1)=' -fno-builtin'
+    else
+      _LT_TAGVAR(lt_prog_compiler_no_builtin_flag, $1)=
+    fi
+
+    if test yes = "$GXX"; then
+      # Set up default GNU C++ configuration
+
+      LT_PATH_LD
+
+      # Check if GNU C++ uses GNU ld as the underlying linker, since the
+      # archiving commands below assume that GNU ld is being used.
+      if test yes = "$with_gnu_ld"; then
+        _LT_TAGVAR(archive_cmds, $1)='$CC $pic_flag -shared -nostdlib $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags $wl-soname $wl$soname -o $lib'
+        _LT_TAGVAR(archive_expsym_cmds, $1)='$CC $pic_flag -shared -nostdlib $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags $wl-soname $wl$soname $wl-retain-symbols-file $wl$export_symbols -o $lib'
+
+        _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='$wl-rpath $wl$libdir'
+        _LT_TAGVAR(export_dynamic_flag_spec, $1)='$wl--export-dynamic'
+
+        # If archive_cmds runs LD, not CC, wlarc should be empty
+        # XXX I think wlarc can be eliminated in ltcf-cxx, but I need to
+        #     investigate it a little bit more. (MM)
+        wlarc='$wl'
+
+        # ancient GNU ld didn't support --whole-archive et. al.
+        if eval "`$CC -print-prog-name=ld` --help 2>&1" |
+	  $GREP 'no-whole-archive' > /dev/null; then
+          _LT_TAGVAR(whole_archive_flag_spec, $1)=$wlarc'--whole-archive$convenience '$wlarc'--no-whole-archive'
+        else
+          _LT_TAGVAR(whole_archive_flag_spec, $1)=
+        fi
+      else
+        with_gnu_ld=no
+        wlarc=
+
+        # A generic and very simple default shared library creation
+        # command for GNU C++ for the case where it uses the native
+        # linker, instead of GNU ld.  If possible, this setting should
+        # overridden to take advantage of the native linker features on
+        # the platform it is being used on.
+        _LT_TAGVAR(archive_cmds, $1)='$CC -shared -nostdlib $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags -o $lib'
+      fi
+
+      # Commands to make compiler produce verbose output that lists
+      # what "hidden" libraries, object files and flags are used when
+      # linking a shared library.
+      output_verbose_link_cmd='$CC -shared $CFLAGS -v conftest.$objext 2>&1 | $GREP -v "^Configured with:" | $GREP "\-L"'
+
+    else
+      GXX=no
+      with_gnu_ld=no
+      wlarc=
+    fi
+
+    # PORTME: fill in a description of your system's C++ link characteristics
+    AC_MSG_CHECKING([whether the $compiler linker ($LD) supports shared libraries])
+    _LT_TAGVAR(ld_shlibs, $1)=yes
+    case $host_os in
+      aix3*)
+        # FIXME: insert proper C++ library support
+        _LT_TAGVAR(ld_shlibs, $1)=no
+        ;;
+      aix[[4-9]]*)
+        if test ia64 = "$host_cpu"; then
+          # On IA64, the linker does run time linking by default, so we don't
+          # have to do anything special.
+          aix_use_runtimelinking=no
+          exp_sym_flag='-Bexport'
+          no_entry_flag=
+        else
+          aix_use_runtimelinking=no
+
+          # Test if we are trying to use run time linking or normal
+          # AIX style linking. If -brtl is somewhere in LDFLAGS, we
+          # have runtime linking enabled, and use it for executables.
+          # For shared libraries, we enable/disable runtime linking
+          # depending on the kind of the shared library created -
+          # when "with_aix_soname,aix_use_runtimelinking" is:
+          # "aix,no"   lib.a(lib.so.V) shared, rtl:no,  for executables
+          # "aix,yes"  lib.so          shared, rtl:yes, for executables
+          #            lib.a           static archive
+          # "both,no"  lib.so.V(shr.o) shared, rtl:yes
+          #            lib.a(lib.so.V) shared, rtl:no,  for executables
+          # "both,yes" lib.so.V(shr.o) shared, rtl:yes, for executables
+          #            lib.a(lib.so.V) shared, rtl:no
+          # "svr4,*"   lib.so.V(shr.o) shared, rtl:yes, for executables
+          #            lib.a           static archive
+          case $host_os in aix4.[[23]]|aix4.[[23]].*|aix[[5-9]]*)
+	    for ld_flag in $LDFLAGS; do
+	      case $ld_flag in
+	      *-brtl*)
+	        aix_use_runtimelinking=yes
+	        break
+	        ;;
+	      esac
+	    done
+	    if test svr4,no = "$with_aix_soname,$aix_use_runtimelinking"; then
+	      # With aix-soname=svr4, we create the lib.so.V shared archives only,
+	      # so we don't have lib.a shared libs to link our executables.
+	      # We have to force runtime linking in this case.
+	      aix_use_runtimelinking=yes
+	      LDFLAGS="$LDFLAGS -Wl,-brtl"
+	    fi
+	    ;;
+          esac
+
+          exp_sym_flag='-bexport'
+          no_entry_flag='-bnoentry'
+        fi
+
+        # When large executables or shared objects are built, AIX ld can
+        # have problems creating the table of contents.  If linking a library
+        # or program results in "error TOC overflow" add -mminimal-toc to
+        # CXXFLAGS/CFLAGS for g++/gcc.  In the cases where that is not
+        # enough to fix the problem, add -Wl,-bbigtoc to LDFLAGS.
+
+        _LT_TAGVAR(archive_cmds, $1)=''
+        _LT_TAGVAR(hardcode_direct, $1)=yes
+        _LT_TAGVAR(hardcode_direct_absolute, $1)=yes
+        _LT_TAGVAR(hardcode_libdir_separator, $1)=':'
+        _LT_TAGVAR(link_all_deplibs, $1)=yes
+        _LT_TAGVAR(file_list_spec, $1)='$wl-f,'
+        case $with_aix_soname,$aix_use_runtimelinking in
+        aix,*) ;;	# no import file
+        svr4,* | *,yes) # use import file
+          # The Import File defines what to hardcode.
+          _LT_TAGVAR(hardcode_direct, $1)=no
+          _LT_TAGVAR(hardcode_direct_absolute, $1)=no
+          ;;
+        esac
+
+        if test yes = "$GXX"; then
+          case $host_os in aix4.[[012]]|aix4.[[012]].*)
+          # We only want to do this on AIX 4.2 and lower, the check
+          # below for broken collect2 doesn't work under 4.3+
+	  collect2name=`$CC -print-prog-name=collect2`
+	  if test -f "$collect2name" &&
+	     strings "$collect2name" | $GREP resolve_lib_name >/dev/null
+	  then
+	    # We have reworked collect2
+	    :
+	  else
+	    # We have old collect2
+	    _LT_TAGVAR(hardcode_direct, $1)=unsupported
+	    # It fails to find uninstalled libraries when the uninstalled
+	    # path is not listed in the libpath.  Setting hardcode_minus_L
+	    # to unsupported forces relinking
+	    _LT_TAGVAR(hardcode_minus_L, $1)=yes
+	    _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='-L$libdir'
+	    _LT_TAGVAR(hardcode_libdir_separator, $1)=
+	  fi
+          esac
+          shared_flag='-shared'
+	  if test yes = "$aix_use_runtimelinking"; then
+	    shared_flag=$shared_flag' $wl-G'
+	  fi
+	  # Need to ensure runtime linking is disabled for the traditional
+	  # shared library, or the linker may eventually find shared libraries
+	  # /with/ Import File - we do not want to mix them.
+	  shared_flag_aix='-shared'
+	  shared_flag_svr4='-shared $wl-G'
+        else
+          # not using gcc
+          if test ia64 = "$host_cpu"; then
+	  # VisualAge C++, Version 5.5 for AIX 5L for IA-64, Beta 3 Release
+	  # chokes on -Wl,-G. The following line is correct:
+	  shared_flag='-G'
+          else
+	    if test yes = "$aix_use_runtimelinking"; then
+	      shared_flag='$wl-G'
+	    else
+	      shared_flag='$wl-bM:SRE'
+	    fi
+	    shared_flag_aix='$wl-bM:SRE'
+	    shared_flag_svr4='$wl-G'
+          fi
+        fi
+
+        _LT_TAGVAR(export_dynamic_flag_spec, $1)='$wl-bexpall'
+        # It seems that -bexpall does not export symbols beginning with
+        # underscore (_), so it is better to generate a list of symbols to
+	# export.
+        _LT_TAGVAR(always_export_symbols, $1)=yes
+	if test aix,yes = "$with_aix_soname,$aix_use_runtimelinking"; then
+          # Warning - without using the other runtime loading flags (-brtl),
+          # -berok will link without error, but may produce a broken library.
+          # The "-G" linker flag allows undefined symbols.
+          _LT_TAGVAR(no_undefined_flag, $1)='-bernotok'
+          # Determine the default libpath from the value encoded in an empty
+          # executable.
+          _LT_SYS_MODULE_PATH_AIX([$1])
+          _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='$wl-blibpath:$libdir:'"$aix_libpath"
+
+          _LT_TAGVAR(archive_expsym_cmds, $1)='$CC -o $output_objdir/$soname $libobjs $deplibs $wl'$no_entry_flag' $compiler_flags `if test -n "$allow_undefined_flag"; then func_echo_all "$wl$allow_undefined_flag"; else :; fi` $wl'$exp_sym_flag:\$export_symbols' '$shared_flag
+        else
+          if test ia64 = "$host_cpu"; then
+	    _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='$wl-R $libdir:/usr/lib:/lib'
+	    _LT_TAGVAR(allow_undefined_flag, $1)="-z nodefs"
+	    _LT_TAGVAR(archive_expsym_cmds, $1)="\$CC $shared_flag"' -o $output_objdir/$soname $libobjs $deplibs '"\$wl$no_entry_flag"' $compiler_flags $wl$allow_undefined_flag '"\$wl$exp_sym_flag:\$export_symbols"
+          else
+	    # Determine the default libpath from the value encoded in an
+	    # empty executable.
+	    _LT_SYS_MODULE_PATH_AIX([$1])
+	    _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='$wl-blibpath:$libdir:'"$aix_libpath"
+	    # Warning - without using the other run time loading flags,
+	    # -berok will link without error, but may produce a broken library.
+	    _LT_TAGVAR(no_undefined_flag, $1)=' $wl-bernotok'
+	    _LT_TAGVAR(allow_undefined_flag, $1)=' $wl-berok'
+	    if test yes = "$with_gnu_ld"; then
+	      # We only use this code for GNU lds that support --whole-archive.
+	      _LT_TAGVAR(whole_archive_flag_spec, $1)='$wl--whole-archive$convenience $wl--no-whole-archive'
+	    else
+	      # Exported symbols can be pulled into shared objects from archives
+	      _LT_TAGVAR(whole_archive_flag_spec, $1)='$convenience'
+	    fi
+	    _LT_TAGVAR(archive_cmds_need_lc, $1)=yes
+	    _LT_TAGVAR(archive_expsym_cmds, $1)='$RM -r $output_objdir/$realname.d~$MKDIR $output_objdir/$realname.d'
+	    # -brtl affects multiple linker settings, -berok does not and is overridden later
+	    compiler_flags_filtered='`func_echo_all "$compiler_flags " | $SED -e "s%-brtl\\([[, ]]\\)%-berok\\1%g"`'
+	    if test svr4 != "$with_aix_soname"; then
+	      # This is similar to how AIX traditionally builds its shared
+	      # libraries. Need -bnortl late, we may have -brtl in LDFLAGS.
+	      _LT_TAGVAR(archive_expsym_cmds, $1)="$_LT_TAGVAR(archive_expsym_cmds, $1)"'~$CC '$shared_flag_aix' -o $output_objdir/$realname.d/$soname $libobjs $deplibs $wl-bnoentry '$compiler_flags_filtered'$wl-bE:$export_symbols$allow_undefined_flag~$AR $AR_FLAGS $output_objdir/$libname$release.a $output_objdir/$realname.d/$soname'
+	    fi
+	    if test aix != "$with_aix_soname"; then
+	      _LT_TAGVAR(archive_expsym_cmds, $1)="$_LT_TAGVAR(archive_expsym_cmds, $1)"'~$CC '$shared_flag_svr4' -o $output_objdir/$realname.d/$shared_archive_member_spec.o $libobjs $deplibs $wl-bnoentry '$compiler_flags_filtered'$wl-bE:$export_symbols$allow_undefined_flag~$STRIP -e $output_objdir/$realname.d/$shared_archive_member_spec.o~( func_echo_all "#! $soname($shared_archive_member_spec.o)"; if test shr_64 = "$shared_archive_member_spec"; then func_echo_all "# 64"; else func_echo_all "# 32"; fi; cat $export_symbols ) > $output_objdir/$realname.d/$shared_archive_member_spec.imp~$AR $AR_FLAGS $output_objdir/$soname $output_objdir/$realname.d/$shared_archive_member_spec.o $output_objdir/$realname.d/$shared_archive_member_spec.imp'
+	    else
+	      # used by -dlpreopen to get the symbols
+	      _LT_TAGVAR(archive_expsym_cmds, $1)="$_LT_TAGVAR(archive_expsym_cmds, $1)"'~$MV  $output_objdir/$realname.d/$soname $output_objdir'
+	    fi
+	    _LT_TAGVAR(archive_expsym_cmds, $1)="$_LT_TAGVAR(archive_expsym_cmds, $1)"'~$RM -r $output_objdir/$realname.d'
+          fi
+        fi
+        ;;
+
+      beos*)
+	if $LD --help 2>&1 | $GREP ': supported targets:.* elf' > /dev/null; then
+	  _LT_TAGVAR(allow_undefined_flag, $1)=unsupported
+	  # Joseph Beckenbach <jrb3@best.com> says some releases of gcc
+	  # support --undefined.  This deserves some investigation.  FIXME
+	  _LT_TAGVAR(archive_cmds, $1)='$CC -nostart $libobjs $deplibs $compiler_flags $wl-soname $wl$soname -o $lib'
+	else
+	  _LT_TAGVAR(ld_shlibs, $1)=no
+	fi
+	;;
+
+      chorus*)
+        case $cc_basename in
+          *)
+	  # FIXME: insert proper C++ library support
+	  _LT_TAGVAR(ld_shlibs, $1)=no
+	  ;;
+        esac
+        ;;
+
+      cygwin* | mingw* | pw32* | cegcc*)
+	case $GXX,$cc_basename in
+	,cl* | no,cl*)
+	  # Native MSVC
+	  # hardcode_libdir_flag_spec is actually meaningless, as there is
+	  # no search path for DLLs.
+	  _LT_TAGVAR(hardcode_libdir_flag_spec, $1)=' '
+	  _LT_TAGVAR(allow_undefined_flag, $1)=unsupported
+	  _LT_TAGVAR(always_export_symbols, $1)=yes
+	  _LT_TAGVAR(file_list_spec, $1)='@'
+	  # Tell ltmain to make .lib files, not .a files.
+	  libext=lib
+	  # Tell ltmain to make .dll files, not .so files.
+	  shrext_cmds=.dll
+	  # FIXME: Setting linknames here is a bad hack.
+	  _LT_TAGVAR(archive_cmds, $1)='$CC -o $output_objdir/$soname $libobjs $compiler_flags $deplibs -Wl,-DLL,-IMPLIB:"$tool_output_objdir$libname.dll.lib"~linknames='
+	  _LT_TAGVAR(archive_expsym_cmds, $1)='if _LT_DLL_DEF_P([$export_symbols]); then
+              cp "$export_symbols" "$output_objdir/$soname.def";
+              echo "$tool_output_objdir$soname.def" > "$output_objdir/$soname.exp";
+            else
+              $SED -e '\''s/^/-link -EXPORT:/'\'' < $export_symbols > $output_objdir/$soname.exp;
+            fi~
+            $CC -o $tool_output_objdir$soname $libobjs $compiler_flags $deplibs "@$tool_output_objdir$soname.exp" -Wl,-DLL,-IMPLIB:"$tool_output_objdir$libname.dll.lib"~
+            linknames='
+	  # The linker will not automatically build a static lib if we build a DLL.
+	  # _LT_TAGVAR(old_archive_from_new_cmds, $1)='true'
+	  _LT_TAGVAR(enable_shared_with_static_runtimes, $1)=yes
+	  # Don't use ranlib
+	  _LT_TAGVAR(old_postinstall_cmds, $1)='chmod 644 $oldlib'
+	  _LT_TAGVAR(postlink_cmds, $1)='lt_outputfile="@OUTPUT@"~
+            lt_tool_outputfile="@TOOL_OUTPUT@"~
+            case $lt_outputfile in
+              *.exe|*.EXE) ;;
+              *)
+                lt_outputfile=$lt_outputfile.exe
+                lt_tool_outputfile=$lt_tool_outputfile.exe
+                ;;
+            esac~
+            func_to_tool_file "$lt_outputfile"~
+            if test : != "$MANIFEST_TOOL" && test -f "$lt_outputfile.manifest"; then
+              $MANIFEST_TOOL -manifest "$lt_tool_outputfile.manifest" -outputresource:"$lt_tool_outputfile" || exit 1;
+              $RM "$lt_outputfile.manifest";
+            fi'
+	  ;;
+	*)
+	  # g++
+	  # _LT_TAGVAR(hardcode_libdir_flag_spec, $1) is actually meaningless,
+	  # as there is no search path for DLLs.
+	  _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='-L$libdir'
+	  _LT_TAGVAR(export_dynamic_flag_spec, $1)='$wl--export-all-symbols'
+	  _LT_TAGVAR(allow_undefined_flag, $1)=unsupported
+	  _LT_TAGVAR(always_export_symbols, $1)=no
+	  _LT_TAGVAR(enable_shared_with_static_runtimes, $1)=yes
+
+	  if $LD --help 2>&1 | $GREP 'auto-import' > /dev/null; then
+	    _LT_TAGVAR(archive_cmds, $1)='$CC -shared -nostdlib $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags -o $output_objdir/$soname $wl--enable-auto-image-base -Xlinker --out-implib -Xlinker $lib'
+	    # If the export-symbols file already is a .def file, use it as
+	    # is; otherwise, prepend EXPORTS...
+	    _LT_TAGVAR(archive_expsym_cmds, $1)='if _LT_DLL_DEF_P([$export_symbols]); then
+              cp $export_symbols $output_objdir/$soname.def;
+            else
+              echo EXPORTS > $output_objdir/$soname.def;
+              cat $export_symbols >> $output_objdir/$soname.def;
+            fi~
+            $CC -shared -nostdlib $output_objdir/$soname.def $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags -o $output_objdir/$soname $wl--enable-auto-image-base -Xlinker --out-implib -Xlinker $lib'
+	  else
+	    _LT_TAGVAR(ld_shlibs, $1)=no
+	  fi
+	  ;;
+	esac
+	;;
+      darwin* | rhapsody*)
+        _LT_DARWIN_LINKER_FEATURES($1)
+	;;
+
+      os2*)
+	_LT_TAGVAR(hardcode_libdir_flag_spec, $1)='-L$libdir'
+	_LT_TAGVAR(hardcode_minus_L, $1)=yes
+	_LT_TAGVAR(allow_undefined_flag, $1)=unsupported
+	shrext_cmds=.dll
+	_LT_TAGVAR(archive_cmds, $1)='$ECHO "LIBRARY ${soname%$shared_ext} INITINSTANCE TERMINSTANCE" > $output_objdir/$libname.def~
+	  $ECHO "DESCRIPTION \"$libname\"" >> $output_objdir/$libname.def~
+	  $ECHO "DATA MULTIPLE NONSHARED" >> $output_objdir/$libname.def~
+	  $ECHO EXPORTS >> $output_objdir/$libname.def~
+	  emxexp $libobjs | $SED /"_DLL_InitTerm"/d >> $output_objdir/$libname.def~
+	  $CC -Zdll -Zcrtdll -o $output_objdir/$soname $libobjs $deplibs $compiler_flags $output_objdir/$libname.def~
+	  emximp -o $lib $output_objdir/$libname.def'
+	_LT_TAGVAR(archive_expsym_cmds, $1)='$ECHO "LIBRARY ${soname%$shared_ext} INITINSTANCE TERMINSTANCE" > $output_objdir/$libname.def~
+	  $ECHO "DESCRIPTION \"$libname\"" >> $output_objdir/$libname.def~
+	  $ECHO "DATA MULTIPLE NONSHARED" >> $output_objdir/$libname.def~
+	  $ECHO EXPORTS >> $output_objdir/$libname.def~
+	  prefix_cmds="$SED"~
+	  if test EXPORTS = "`$SED 1q $export_symbols`"; then
+	    prefix_cmds="$prefix_cmds -e 1d";
+	  fi~
+	  prefix_cmds="$prefix_cmds -e \"s/^\(.*\)$/_\1/g\""~
+	  cat $export_symbols | $prefix_cmds >> $output_objdir/$libname.def~
+	  $CC -Zdll -Zcrtdll -o $output_objdir/$soname $libobjs $deplibs $compiler_flags $output_objdir/$libname.def~
+	  emximp -o $lib $output_objdir/$libname.def'
+	_LT_TAGVAR(old_archive_From_new_cmds, $1)='emximp -o $output_objdir/${libname}_dll.a $output_objdir/$libname.def'
+	_LT_TAGVAR(enable_shared_with_static_runtimes, $1)=yes
+	;;
+
+      dgux*)
+        case $cc_basename in
+          ec++*)
+	    # FIXME: insert proper C++ library support
+	    _LT_TAGVAR(ld_shlibs, $1)=no
+	    ;;
+          ghcx*)
+	    # Green Hills C++ Compiler
+	    # FIXME: insert proper C++ library support
+	    _LT_TAGVAR(ld_shlibs, $1)=no
+	    ;;
+          *)
+	    # FIXME: insert proper C++ library support
+	    _LT_TAGVAR(ld_shlibs, $1)=no
+	    ;;
+        esac
+        ;;
+
+      freebsd2.*)
+        # C++ shared libraries reported to be fairly broken before
+	# switch to ELF
+        _LT_TAGVAR(ld_shlibs, $1)=no
+        ;;
+
+      freebsd-elf*)
+        _LT_TAGVAR(archive_cmds_need_lc, $1)=no
+        ;;
+
+      freebsd* | dragonfly*)
+        # FreeBSD 3 and later use GNU C++ and GNU ld with standard ELF
+        # conventions
+        _LT_TAGVAR(ld_shlibs, $1)=yes
+        ;;
+
+      haiku*)
+        _LT_TAGVAR(archive_cmds, $1)='$CC -shared $libobjs $deplibs $compiler_flags $wl-soname $wl$soname -o $lib'
+        _LT_TAGVAR(link_all_deplibs, $1)=yes
+        ;;
+
+      hpux9*)
+        _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='$wl+b $wl$libdir'
+        _LT_TAGVAR(hardcode_libdir_separator, $1)=:
+        _LT_TAGVAR(export_dynamic_flag_spec, $1)='$wl-E'
+        _LT_TAGVAR(hardcode_direct, $1)=yes
+        _LT_TAGVAR(hardcode_minus_L, $1)=yes # Not in the search PATH,
+				             # but as the default
+				             # location of the library.
+
+        case $cc_basename in
+          CC*)
+            # FIXME: insert proper C++ library support
+            _LT_TAGVAR(ld_shlibs, $1)=no
+            ;;
+          aCC*)
+            _LT_TAGVAR(archive_cmds, $1)='$RM $output_objdir/$soname~$CC -b $wl+b $wl$install_libdir -o $output_objdir/$soname $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags~test "x$output_objdir/$soname" = "x$lib" || mv $output_objdir/$soname $lib'
+            # Commands to make compiler produce verbose output that lists
+            # what "hidden" libraries, object files and flags are used when
+            # linking a shared library.
+            #
+            # There doesn't appear to be a way to prevent this compiler from
+            # explicitly linking system object files so we need to strip them
+            # from the output so that they don't get included in the library
+            # dependencies.
+            output_verbose_link_cmd='templist=`($CC -b $CFLAGS -v conftest.$objext 2>&1) | $EGREP "\-L"`; list= ; for z in $templist; do case $z in conftest.$objext) list="$list $z";; *.$objext);; *) list="$list $z";;esac; done; func_echo_all "$list"'
+            ;;
+          *)
+            if test yes = "$GXX"; then
+              _LT_TAGVAR(archive_cmds, $1)='$RM $output_objdir/$soname~$CC -shared -nostdlib $pic_flag $wl+b $wl$install_libdir -o $output_objdir/$soname $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags~test "x$output_objdir/$soname" = "x$lib" || mv $output_objdir/$soname $lib'
+            else
+              # FIXME: insert proper C++ library support
+              _LT_TAGVAR(ld_shlibs, $1)=no
+            fi
+            ;;
+        esac
+        ;;
+
+      hpux10*|hpux11*)
+        if test no = "$with_gnu_ld"; then
+	  _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='$wl+b $wl$libdir'
+	  _LT_TAGVAR(hardcode_libdir_separator, $1)=:
+
+          case $host_cpu in
+            hppa*64*|ia64*)
+              ;;
+            *)
+	      _LT_TAGVAR(export_dynamic_flag_spec, $1)='$wl-E'
+              ;;
+          esac
+        fi
+        case $host_cpu in
+          hppa*64*|ia64*)
+            _LT_TAGVAR(hardcode_direct, $1)=no
+            _LT_TAGVAR(hardcode_shlibpath_var, $1)=no
+            ;;
+          *)
+            _LT_TAGVAR(hardcode_direct, $1)=yes
+            _LT_TAGVAR(hardcode_direct_absolute, $1)=yes
+            _LT_TAGVAR(hardcode_minus_L, $1)=yes # Not in the search PATH,
+					         # but as the default
+					         # location of the library.
+            ;;
+        esac
+
+        case $cc_basename in
+          CC*)
+	    # FIXME: insert proper C++ library support
+	    _LT_TAGVAR(ld_shlibs, $1)=no
+	    ;;
+          aCC*)
+	    case $host_cpu in
+	      hppa*64*)
+	        _LT_TAGVAR(archive_cmds, $1)='$CC -b $wl+h $wl$soname -o $lib $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags'
+	        ;;
+	      ia64*)
+	        _LT_TAGVAR(archive_cmds, $1)='$CC -b $wl+h $wl$soname $wl+nodefaultrpath -o $lib $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags'
+	        ;;
+	      *)
+	        _LT_TAGVAR(archive_cmds, $1)='$CC -b $wl+h $wl$soname $wl+b $wl$install_libdir -o $lib $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags'
+	        ;;
+	    esac
+	    # Commands to make compiler produce verbose output that lists
+	    # what "hidden" libraries, object files and flags are used when
+	    # linking a shared library.
+	    #
+	    # There doesn't appear to be a way to prevent this compiler from
+	    # explicitly linking system object files so we need to strip them
+	    # from the output so that they don't get included in the library
+	    # dependencies.
+	    output_verbose_link_cmd='templist=`($CC -b $CFLAGS -v conftest.$objext 2>&1) | $GREP "\-L"`; list= ; for z in $templist; do case $z in conftest.$objext) list="$list $z";; *.$objext);; *) list="$list $z";;esac; done; func_echo_all "$list"'
+	    ;;
+          *)
+	    if test yes = "$GXX"; then
+	      if test no = "$with_gnu_ld"; then
+	        case $host_cpu in
+	          hppa*64*)
+	            _LT_TAGVAR(archive_cmds, $1)='$CC -shared -nostdlib -fPIC $wl+h $wl$soname -o $lib $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags'
+	            ;;
+	          ia64*)
+	            _LT_TAGVAR(archive_cmds, $1)='$CC -shared -nostdlib $pic_flag $wl+h $wl$soname $wl+nodefaultrpath -o $lib $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags'
+	            ;;
+	          *)
+	            _LT_TAGVAR(archive_cmds, $1)='$CC -shared -nostdlib $pic_flag $wl+h $wl$soname $wl+b $wl$install_libdir -o $lib $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags'
+	            ;;
+	        esac
+	      fi
+	    else
+	      # FIXME: insert proper C++ library support
+	      _LT_TAGVAR(ld_shlibs, $1)=no
+	    fi
+	    ;;
+        esac
+        ;;
+
+      interix[[3-9]]*)
+	_LT_TAGVAR(hardcode_direct, $1)=no
+	_LT_TAGVAR(hardcode_shlibpath_var, $1)=no
+	_LT_TAGVAR(hardcode_libdir_flag_spec, $1)='$wl-rpath,$libdir'
+	_LT_TAGVAR(export_dynamic_flag_spec, $1)='$wl-E'
+	# Hack: On Interix 3.x, we cannot compile PIC because of a broken gcc.
+	# Instead, shared libraries are loaded at an image base (0x10000000 by
+	# default) and relocated if they conflict, which is a slow very memory
+	# consuming and fragmenting process.  To avoid this, we pick a random,
+	# 256 KiB-aligned image base between 0x50000000 and 0x6FFC0000 at link
+	# time.  Moving up from 0x10000000 also allows more sbrk(2) space.
+	_LT_TAGVAR(archive_cmds, $1)='$CC -shared $pic_flag $libobjs $deplibs $compiler_flags $wl-h,$soname $wl--image-base,`expr ${RANDOM-$$} % 4096 / 2 \* 262144 + 1342177280` -o $lib'
+	_LT_TAGVAR(archive_expsym_cmds, $1)='sed "s|^|_|" $export_symbols >$output_objdir/$soname.expsym~$CC -shared $pic_flag $libobjs $deplibs $compiler_flags $wl-h,$soname $wl--retain-symbols-file,$output_objdir/$soname.expsym $wl--image-base,`expr ${RANDOM-$$} % 4096 / 2 \* 262144 + 1342177280` -o $lib'
+	;;
+      irix5* | irix6*)
+        case $cc_basename in
+          CC*)
+	    # SGI C++
+	    _LT_TAGVAR(archive_cmds, $1)='$CC -shared -all -multigot $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags -soname $soname `test -n "$verstring" && func_echo_all "-set_version $verstring"` -update_registry $output_objdir/so_locations -o $lib'
+
+	    # Archives containing C++ object files must be created using
+	    # "CC -ar", where "CC" is the IRIX C++ compiler.  This is
+	    # necessary to make sure instantiated templates are included
+	    # in the archive.
+	    _LT_TAGVAR(old_archive_cmds, $1)='$CC -ar -WR,-u -o $oldlib $oldobjs'
+	    ;;
+          *)
+	    if test yes = "$GXX"; then
+	      if test no = "$with_gnu_ld"; then
+	        _LT_TAGVAR(archive_cmds, $1)='$CC -shared $pic_flag -nostdlib $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags $wl-soname $wl$soname `test -n "$verstring" && func_echo_all "$wl-set_version $wl$verstring"` $wl-update_registry $wl$output_objdir/so_locations -o $lib'
+	      else
+	        _LT_TAGVAR(archive_cmds, $1)='$CC -shared $pic_flag -nostdlib $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags $wl-soname $wl$soname `test -n "$verstring" && func_echo_all "$wl-set_version $wl$verstring"` -o $lib'
+	      fi
+	    fi
+	    _LT_TAGVAR(link_all_deplibs, $1)=yes
+	    ;;
+        esac
+        _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='$wl-rpath $wl$libdir'
+        _LT_TAGVAR(hardcode_libdir_separator, $1)=:
+        _LT_TAGVAR(inherit_rpath, $1)=yes
+        ;;
+
+      linux* | k*bsd*-gnu | kopensolaris*-gnu | gnu*)
+        case $cc_basename in
+          KCC*)
+	    # Kuck and Associates, Inc. (KAI) C++ Compiler
+
+	    # KCC will only create a shared library if the output file
+	    # ends with ".so" (or ".sl" for HP-UX), so rename the library
+	    # to its proper name (with version) after linking.
+	    _LT_TAGVAR(archive_cmds, $1)='tempext=`echo $shared_ext | $SED -e '\''s/\([[^()0-9A-Za-z{}]]\)/\\\\\1/g'\''`; templib=`echo $lib | $SED -e "s/\$tempext\..*/.so/"`; $CC $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags --soname $soname -o \$templib; mv \$templib $lib'
+	    _LT_TAGVAR(archive_expsym_cmds, $1)='tempext=`echo $shared_ext | $SED -e '\''s/\([[^()0-9A-Za-z{}]]\)/\\\\\1/g'\''`; templib=`echo $lib | $SED -e "s/\$tempext\..*/.so/"`; $CC $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags --soname $soname -o \$templib $wl-retain-symbols-file,$export_symbols; mv \$templib $lib'
+	    # Commands to make compiler produce verbose output that lists
+	    # what "hidden" libraries, object files and flags are used when
+	    # linking a shared library.
+	    #
+	    # There doesn't appear to be a way to prevent this compiler from
+	    # explicitly linking system object files so we need to strip them
+	    # from the output so that they don't get included in the library
+	    # dependencies.
+	    output_verbose_link_cmd='templist=`$CC $CFLAGS -v conftest.$objext -o libconftest$shared_ext 2>&1 | $GREP "ld"`; rm -f libconftest$shared_ext; list= ; for z in $templist; do case $z in conftest.$objext) list="$list $z";; *.$objext);; *) list="$list $z";;esac; done; func_echo_all "$list"'
+
+	    _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='$wl-rpath,$libdir'
+	    _LT_TAGVAR(export_dynamic_flag_spec, $1)='$wl--export-dynamic'
+
+	    # Archives containing C++ object files must be created using
+	    # "CC -Bstatic", where "CC" is the KAI C++ compiler.
+	    _LT_TAGVAR(old_archive_cmds, $1)='$CC -Bstatic -o $oldlib $oldobjs'
+	    ;;
+	  icpc* | ecpc* )
+	    # Intel C++
+	    with_gnu_ld=yes
+	    # version 8.0 and above of icpc choke on multiply defined symbols
+	    # if we add $predep_objects and $postdep_objects, however 7.1 and
+	    # earlier do not add the objects themselves.
+	    case `$CC -V 2>&1` in
+	      *"Version 7."*)
+	        _LT_TAGVAR(archive_cmds, $1)='$CC -shared $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags $wl-soname $wl$soname -o $lib'
+		_LT_TAGVAR(archive_expsym_cmds, $1)='$CC -shared $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags $wl-soname $wl$soname $wl-retain-symbols-file $wl$export_symbols -o $lib'
+		;;
+	      *)  # Version 8.0 or newer
+	        tmp_idyn=
+	        case $host_cpu in
+		  ia64*) tmp_idyn=' -i_dynamic';;
+		esac
+	        _LT_TAGVAR(archive_cmds, $1)='$CC -shared'"$tmp_idyn"' $libobjs $deplibs $compiler_flags $wl-soname $wl$soname -o $lib'
+		_LT_TAGVAR(archive_expsym_cmds, $1)='$CC -shared'"$tmp_idyn"' $libobjs $deplibs $compiler_flags $wl-soname $wl$soname $wl-retain-symbols-file $wl$export_symbols -o $lib'
+		;;
+	    esac
+	    _LT_TAGVAR(archive_cmds_need_lc, $1)=no
+	    _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='$wl-rpath,$libdir'
+	    _LT_TAGVAR(export_dynamic_flag_spec, $1)='$wl--export-dynamic'
+	    _LT_TAGVAR(whole_archive_flag_spec, $1)='$wl--whole-archive$convenience $wl--no-whole-archive'
+	    ;;
+          pgCC* | pgcpp*)
+            # Portland Group C++ compiler
+	    case `$CC -V` in
+	    *pgCC\ [[1-5]].* | *pgcpp\ [[1-5]].*)
+	      _LT_TAGVAR(prelink_cmds, $1)='tpldir=Template.dir~
+               rm -rf $tpldir~
+               $CC --prelink_objects --instantiation_dir $tpldir $objs $libobjs $compile_deplibs~
+               compile_command="$compile_command `find $tpldir -name \*.o | sort | $NL2SP`"'
+	      _LT_TAGVAR(old_archive_cmds, $1)='tpldir=Template.dir~
+                rm -rf $tpldir~
+                $CC --prelink_objects --instantiation_dir $tpldir $oldobjs$old_deplibs~
+                $AR $AR_FLAGS $oldlib$oldobjs$old_deplibs `find $tpldir -name \*.o | sort | $NL2SP`~
+                $RANLIB $oldlib'
+	      _LT_TAGVAR(archive_cmds, $1)='tpldir=Template.dir~
+                rm -rf $tpldir~
+                $CC --prelink_objects --instantiation_dir $tpldir $predep_objects $libobjs $deplibs $convenience $postdep_objects~
+                $CC -shared $pic_flag $predep_objects $libobjs $deplibs `find $tpldir -name \*.o | sort | $NL2SP` $postdep_objects $compiler_flags $wl-soname $wl$soname -o $lib'
+	      _LT_TAGVAR(archive_expsym_cmds, $1)='tpldir=Template.dir~
+                rm -rf $tpldir~
+                $CC --prelink_objects --instantiation_dir $tpldir $predep_objects $libobjs $deplibs $convenience $postdep_objects~
+                $CC -shared $pic_flag $predep_objects $libobjs $deplibs `find $tpldir -name \*.o | sort | $NL2SP` $postdep_objects $compiler_flags $wl-soname $wl$soname $wl-retain-symbols-file $wl$export_symbols -o $lib'
+	      ;;
+	    *) # Version 6 and above use weak symbols
+	      _LT_TAGVAR(archive_cmds, $1)='$CC -shared $pic_flag $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags $wl-soname $wl$soname -o $lib'
+	      _LT_TAGVAR(archive_expsym_cmds, $1)='$CC -shared $pic_flag $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags $wl-soname $wl$soname $wl-retain-symbols-file $wl$export_symbols -o $lib'
+	      ;;
+	    esac
+
+	    _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='$wl--rpath $wl$libdir'
+	    _LT_TAGVAR(export_dynamic_flag_spec, $1)='$wl--export-dynamic'
+	    _LT_TAGVAR(whole_archive_flag_spec, $1)='$wl--whole-archive`for conv in $convenience\"\"; do test  -n \"$conv\" && new_convenience=\"$new_convenience,$conv\"; done; func_echo_all \"$new_convenience\"` $wl--no-whole-archive'
+            ;;
+	  cxx*)
+	    # Compaq C++
+	    _LT_TAGVAR(archive_cmds, $1)='$CC -shared $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags $wl-soname $wl$soname -o $lib'
+	    _LT_TAGVAR(archive_expsym_cmds, $1)='$CC -shared $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags $wl-soname $wl$soname  -o $lib $wl-retain-symbols-file $wl$export_symbols'
+
+	    runpath_var=LD_RUN_PATH
+	    _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='-rpath $libdir'
+	    _LT_TAGVAR(hardcode_libdir_separator, $1)=:
+
+	    # Commands to make compiler produce verbose output that lists
+	    # what "hidden" libraries, object files and flags are used when
+	    # linking a shared library.
+	    #
+	    # There doesn't appear to be a way to prevent this compiler from
+	    # explicitly linking system object files so we need to strip them
+	    # from the output so that they don't get included in the library
+	    # dependencies.
+	    output_verbose_link_cmd='templist=`$CC -shared $CFLAGS -v conftest.$objext 2>&1 | $GREP "ld"`; templist=`func_echo_all "$templist" | $SED "s/\(^.*ld.*\)\( .*ld .*$\)/\1/"`; list= ; for z in $templist; do case $z in conftest.$objext) list="$list $z";; *.$objext);; *) list="$list $z";;esac; done; func_echo_all "X$list" | $Xsed'
+	    ;;
+	  xl* | mpixl* | bgxl*)
+	    # IBM XL 8.0 on PPC, with GNU ld
+	    _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='$wl-rpath $wl$libdir'
+	    _LT_TAGVAR(export_dynamic_flag_spec, $1)='$wl--export-dynamic'
+	    _LT_TAGVAR(archive_cmds, $1)='$CC -qmkshrobj $libobjs $deplibs $compiler_flags $wl-soname $wl$soname -o $lib'
+	    if test yes = "$supports_anon_versioning"; then
+	      _LT_TAGVAR(archive_expsym_cmds, $1)='echo "{ global:" > $output_objdir/$libname.ver~
+                cat $export_symbols | sed -e "s/\(.*\)/\1;/" >> $output_objdir/$libname.ver~
+                echo "local: *; };" >> $output_objdir/$libname.ver~
+                $CC -qmkshrobj $libobjs $deplibs $compiler_flags $wl-soname $wl$soname $wl-version-script $wl$output_objdir/$libname.ver -o $lib'
+	    fi
+	    ;;
+	  *)
+	    case `$CC -V 2>&1 | sed 5q` in
+	    *Sun\ C*)
+	      # Sun C++ 5.9
+	      _LT_TAGVAR(no_undefined_flag, $1)=' -zdefs'
+	      _LT_TAGVAR(archive_cmds, $1)='$CC -G$allow_undefined_flag -h$soname -o $lib $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags'
+	      _LT_TAGVAR(archive_expsym_cmds, $1)='$CC -G$allow_undefined_flag -h$soname -o $lib $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags $wl-retain-symbols-file $wl$export_symbols'
+	      _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='-R$libdir'
+	      _LT_TAGVAR(whole_archive_flag_spec, $1)='$wl--whole-archive`new_convenience=; for conv in $convenience\"\"; do test -z \"$conv\" || new_convenience=\"$new_convenience,$conv\"; done; func_echo_all \"$new_convenience\"` $wl--no-whole-archive'
+	      _LT_TAGVAR(compiler_needs_object, $1)=yes
+
+	      # Not sure whether something based on
+	      # $CC $CFLAGS -v conftest.$objext -o libconftest$shared_ext 2>&1
+	      # would be better.
+	      output_verbose_link_cmd='func_echo_all'
+
+	      # Archives containing C++ object files must be created using
+	      # "CC -xar", where "CC" is the Sun C++ compiler.  This is
+	      # necessary to make sure instantiated templates are included
+	      # in the archive.
+	      _LT_TAGVAR(old_archive_cmds, $1)='$CC -xar -o $oldlib $oldobjs'
+	      ;;
+	    esac
+	    ;;
+	esac
+	;;
+
+      lynxos*)
+        # FIXME: insert proper C++ library support
+	_LT_TAGVAR(ld_shlibs, $1)=no
+	;;
+
+      m88k*)
+        # FIXME: insert proper C++ library support
+        _LT_TAGVAR(ld_shlibs, $1)=no
+	;;
+
+      mvs*)
+        case $cc_basename in
+          cxx*)
+	    # FIXME: insert proper C++ library support
+	    _LT_TAGVAR(ld_shlibs, $1)=no
+	    ;;
+	  *)
+	    # FIXME: insert proper C++ library support
+	    _LT_TAGVAR(ld_shlibs, $1)=no
+	    ;;
+	esac
+	;;
+
+      netbsd*)
+        if echo __ELF__ | $CC -E - | $GREP __ELF__ >/dev/null; then
+	  _LT_TAGVAR(archive_cmds, $1)='$LD -Bshareable  -o $lib $predep_objects $libobjs $deplibs $postdep_objects $linker_flags'
+	  wlarc=
+	  _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='-R$libdir'
+	  _LT_TAGVAR(hardcode_direct, $1)=yes
+	  _LT_TAGVAR(hardcode_shlibpath_var, $1)=no
+	fi
+	# Workaround some broken pre-1.5 toolchains
+	output_verbose_link_cmd='$CC -shared $CFLAGS -v conftest.$objext 2>&1 | $GREP conftest.$objext | $SED -e "s:-lgcc -lc -lgcc::"'
+	;;
+
+      *nto* | *qnx*)
+        _LT_TAGVAR(ld_shlibs, $1)=yes
+	;;
+
+      openbsd* | bitrig*)
+	if test -f /usr/libexec/ld.so; then
+	  _LT_TAGVAR(hardcode_direct, $1)=yes
+	  _LT_TAGVAR(hardcode_shlibpath_var, $1)=no
+	  _LT_TAGVAR(hardcode_direct_absolute, $1)=yes
+	  _LT_TAGVAR(archive_cmds, $1)='$CC -shared $pic_flag $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags -o $lib'
+	  _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='$wl-rpath,$libdir'
+	  if test -z "`echo __ELF__ | $CC -E - | grep __ELF__`"; then
+	    _LT_TAGVAR(archive_expsym_cmds, $1)='$CC -shared $pic_flag $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags $wl-retain-symbols-file,$export_symbols -o $lib'
+	    _LT_TAGVAR(export_dynamic_flag_spec, $1)='$wl-E'
+	    _LT_TAGVAR(whole_archive_flag_spec, $1)=$wlarc'--whole-archive$convenience '$wlarc'--no-whole-archive'
+	  fi
+	  output_verbose_link_cmd=func_echo_all
+	else
+	  _LT_TAGVAR(ld_shlibs, $1)=no
+	fi
+	;;
+
+      osf3* | osf4* | osf5*)
+        case $cc_basename in
+          KCC*)
+	    # Kuck and Associates, Inc. (KAI) C++ Compiler
+
+	    # KCC will only create a shared library if the output file
+	    # ends with ".so" (or ".sl" for HP-UX), so rename the library
+	    # to its proper name (with version) after linking.
+	    _LT_TAGVAR(archive_cmds, $1)='tempext=`echo $shared_ext | $SED -e '\''s/\([[^()0-9A-Za-z{}]]\)/\\\\\1/g'\''`; templib=`echo "$lib" | $SED -e "s/\$tempext\..*/.so/"`; $CC $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags --soname $soname -o \$templib; mv \$templib $lib'
+
+	    _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='$wl-rpath,$libdir'
+	    _LT_TAGVAR(hardcode_libdir_separator, $1)=:
+
+	    # Archives containing C++ object files must be created using
+	    # the KAI C++ compiler.
+	    case $host in
+	      osf3*) _LT_TAGVAR(old_archive_cmds, $1)='$CC -Bstatic -o $oldlib $oldobjs' ;;
+	      *) _LT_TAGVAR(old_archive_cmds, $1)='$CC -o $oldlib $oldobjs' ;;
+	    esac
+	    ;;
+          RCC*)
+	    # Rational C++ 2.4.1
+	    # FIXME: insert proper C++ library support
+	    _LT_TAGVAR(ld_shlibs, $1)=no
+	    ;;
+          cxx*)
+	    case $host in
+	      osf3*)
+	        _LT_TAGVAR(allow_undefined_flag, $1)=' $wl-expect_unresolved $wl\*'
+	        _LT_TAGVAR(archive_cmds, $1)='$CC -shared$allow_undefined_flag $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags $wl-soname $soname `test -n "$verstring" && func_echo_all "$wl-set_version $verstring"` -update_registry $output_objdir/so_locations -o $lib'
+	        _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='$wl-rpath $wl$libdir'
+		;;
+	      *)
+	        _LT_TAGVAR(allow_undefined_flag, $1)=' -expect_unresolved \*'
+	        _LT_TAGVAR(archive_cmds, $1)='$CC -shared$allow_undefined_flag $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags -msym -soname $soname `test -n "$verstring" && func_echo_all "-set_version $verstring"` -update_registry $output_objdir/so_locations -o $lib'
+	        _LT_TAGVAR(archive_expsym_cmds, $1)='for i in `cat $export_symbols`; do printf "%s %s\\n" -exported_symbol "\$i" >> $lib.exp; done~
+                  echo "-hidden">> $lib.exp~
+                  $CC -shared$allow_undefined_flag $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags -msym -soname $soname $wl-input $wl$lib.exp  `test -n "$verstring" && $ECHO "-set_version $verstring"` -update_registry $output_objdir/so_locations -o $lib~
+                  $RM $lib.exp'
+	        _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='-rpath $libdir'
+		;;
+	    esac
+
+	    _LT_TAGVAR(hardcode_libdir_separator, $1)=:
+
+	    # Commands to make compiler produce verbose output that lists
+	    # what "hidden" libraries, object files and flags are used when
+	    # linking a shared library.
+	    #
+	    # There doesn't appear to be a way to prevent this compiler from
+	    # explicitly linking system object files so we need to strip them
+	    # from the output so that they don't get included in the library
+	    # dependencies.
+	    output_verbose_link_cmd='templist=`$CC -shared $CFLAGS -v conftest.$objext 2>&1 | $GREP "ld" | $GREP -v "ld:"`; templist=`func_echo_all "$templist" | $SED "s/\(^.*ld.*\)\( .*ld.*$\)/\1/"`; list= ; for z in $templist; do case $z in conftest.$objext) list="$list $z";; *.$objext);; *) list="$list $z";;esac; done; func_echo_all "$list"'
+	    ;;
+	  *)
+	    if test yes,no = "$GXX,$with_gnu_ld"; then
+	      _LT_TAGVAR(allow_undefined_flag, $1)=' $wl-expect_unresolved $wl\*'
+	      case $host in
+	        osf3*)
+	          _LT_TAGVAR(archive_cmds, $1)='$CC -shared -nostdlib $allow_undefined_flag $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags $wl-soname $wl$soname `test -n "$verstring" && func_echo_all "$wl-set_version $wl$verstring"` $wl-update_registry $wl$output_objdir/so_locations -o $lib'
+		  ;;
+	        *)
+	          _LT_TAGVAR(archive_cmds, $1)='$CC -shared $pic_flag -nostdlib $allow_undefined_flag $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags $wl-msym $wl-soname $wl$soname `test -n "$verstring" && func_echo_all "$wl-set_version $wl$verstring"` $wl-update_registry $wl$output_objdir/so_locations -o $lib'
+		  ;;
+	      esac
+
+	      _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='$wl-rpath $wl$libdir'
+	      _LT_TAGVAR(hardcode_libdir_separator, $1)=:
+
+	      # Commands to make compiler produce verbose output that lists
+	      # what "hidden" libraries, object files and flags are used when
+	      # linking a shared library.
+	      output_verbose_link_cmd='$CC -shared $CFLAGS -v conftest.$objext 2>&1 | $GREP -v "^Configured with:" | $GREP "\-L"'
+
+	    else
+	      # FIXME: insert proper C++ library support
+	      _LT_TAGVAR(ld_shlibs, $1)=no
+	    fi
+	    ;;
+        esac
+        ;;
+
+      psos*)
+        # FIXME: insert proper C++ library support
+        _LT_TAGVAR(ld_shlibs, $1)=no
+        ;;
+
+      sunos4*)
+        case $cc_basename in
+          CC*)
+	    # Sun C++ 4.x
+	    # FIXME: insert proper C++ library support
+	    _LT_TAGVAR(ld_shlibs, $1)=no
+	    ;;
+          lcc*)
+	    # Lucid
+	    # FIXME: insert proper C++ library support
+	    _LT_TAGVAR(ld_shlibs, $1)=no
+	    ;;
+          *)
+	    # FIXME: insert proper C++ library support
+	    _LT_TAGVAR(ld_shlibs, $1)=no
+	    ;;
+        esac
+        ;;
+
+      solaris*)
+        case $cc_basename in
+          CC* | sunCC*)
+	    # Sun C++ 4.2, 5.x and Centerline C++
+            _LT_TAGVAR(archive_cmds_need_lc,$1)=yes
+	    _LT_TAGVAR(no_undefined_flag, $1)=' -zdefs'
+	    _LT_TAGVAR(archive_cmds, $1)='$CC -G$allow_undefined_flag -h$soname -o $lib $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags'
+	    _LT_TAGVAR(archive_expsym_cmds, $1)='echo "{ global:" > $lib.exp~cat $export_symbols | $SED -e "s/\(.*\)/\1;/" >> $lib.exp~echo "local: *; };" >> $lib.exp~
+              $CC -G$allow_undefined_flag $wl-M $wl$lib.exp -h$soname -o $lib $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags~$RM $lib.exp'
+
+	    _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='-R$libdir'
+	    _LT_TAGVAR(hardcode_shlibpath_var, $1)=no
+	    case $host_os in
+	      solaris2.[[0-5]] | solaris2.[[0-5]].*) ;;
+	      *)
+		# The compiler driver will combine and reorder linker options,
+		# but understands '-z linker_flag'.
+	        # Supported since Solaris 2.6 (maybe 2.5.1?)
+		_LT_TAGVAR(whole_archive_flag_spec, $1)='-z allextract$convenience -z defaultextract'
+	        ;;
+	    esac
+	    _LT_TAGVAR(link_all_deplibs, $1)=yes
+
+	    output_verbose_link_cmd='func_echo_all'
+
+	    # Archives containing C++ object files must be created using
+	    # "CC -xar", where "CC" is the Sun C++ compiler.  This is
+	    # necessary to make sure instantiated templates are included
+	    # in the archive.
+	    _LT_TAGVAR(old_archive_cmds, $1)='$CC -xar -o $oldlib $oldobjs'
+	    ;;
+          gcx*)
+	    # Green Hills C++ Compiler
+	    _LT_TAGVAR(archive_cmds, $1)='$CC -shared $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags $wl-h $wl$soname -o $lib'
+
+	    # The C++ compiler must be used to create the archive.
+	    _LT_TAGVAR(old_archive_cmds, $1)='$CC $LDFLAGS -archive -o $oldlib $oldobjs'
+	    ;;
+          *)
+	    # GNU C++ compiler with Solaris linker
+	    if test yes,no = "$GXX,$with_gnu_ld"; then
+	      _LT_TAGVAR(no_undefined_flag, $1)=' $wl-z ${wl}defs'
+	      if $CC --version | $GREP -v '^2\.7' > /dev/null; then
+	        _LT_TAGVAR(archive_cmds, $1)='$CC -shared $pic_flag -nostdlib $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags $wl-h $wl$soname -o $lib'
+	        _LT_TAGVAR(archive_expsym_cmds, $1)='echo "{ global:" > $lib.exp~cat $export_symbols | $SED -e "s/\(.*\)/\1;/" >> $lib.exp~echo "local: *; };" >> $lib.exp~
+                  $CC -shared $pic_flag -nostdlib $wl-M $wl$lib.exp $wl-h $wl$soname -o $lib $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags~$RM $lib.exp'
+
+	        # Commands to make compiler produce verbose output that lists
+	        # what "hidden" libraries, object files and flags are used when
+	        # linking a shared library.
+	        output_verbose_link_cmd='$CC -shared $CFLAGS -v conftest.$objext 2>&1 | $GREP -v "^Configured with:" | $GREP "\-L"'
+	      else
+	        # g++ 2.7 appears to require '-G' NOT '-shared' on this
+	        # platform.
+	        _LT_TAGVAR(archive_cmds, $1)='$CC -G -nostdlib $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags $wl-h $wl$soname -o $lib'
+	        _LT_TAGVAR(archive_expsym_cmds, $1)='echo "{ global:" > $lib.exp~cat $export_symbols | $SED -e "s/\(.*\)/\1;/" >> $lib.exp~echo "local: *; };" >> $lib.exp~
+                  $CC -G -nostdlib $wl-M $wl$lib.exp $wl-h $wl$soname -o $lib $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags~$RM $lib.exp'
+
+	        # Commands to make compiler produce verbose output that lists
+	        # what "hidden" libraries, object files and flags are used when
+	        # linking a shared library.
+	        output_verbose_link_cmd='$CC -G $CFLAGS -v conftest.$objext 2>&1 | $GREP -v "^Configured with:" | $GREP "\-L"'
+	      fi
+
+	      _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='$wl-R $wl$libdir'
+	      case $host_os in
+		solaris2.[[0-5]] | solaris2.[[0-5]].*) ;;
+		*)
+		  _LT_TAGVAR(whole_archive_flag_spec, $1)='$wl-z ${wl}allextract$convenience $wl-z ${wl}defaultextract'
+		  ;;
+	      esac
+	    fi
+	    ;;
+        esac
+        ;;
+
+    sysv4*uw2* | sysv5OpenUNIX* | sysv5UnixWare7.[[01]].[[10]]* | unixware7* | sco3.2v5.0.[[024]]*)
+      _LT_TAGVAR(no_undefined_flag, $1)='$wl-z,text'
+      _LT_TAGVAR(archive_cmds_need_lc, $1)=no
+      _LT_TAGVAR(hardcode_shlibpath_var, $1)=no
+      runpath_var='LD_RUN_PATH'
+
+      case $cc_basename in
+        CC*)
+	  _LT_TAGVAR(archive_cmds, $1)='$CC -G $wl-h,$soname -o $lib $libobjs $deplibs $compiler_flags'
+	  _LT_TAGVAR(archive_expsym_cmds, $1)='$CC -G $wl-Bexport:$export_symbols $wl-h,$soname -o $lib $libobjs $deplibs $compiler_flags'
+	  ;;
+	*)
+	  _LT_TAGVAR(archive_cmds, $1)='$CC -shared $wl-h,$soname -o $lib $libobjs $deplibs $compiler_flags'
+	  _LT_TAGVAR(archive_expsym_cmds, $1)='$CC -shared $wl-Bexport:$export_symbols $wl-h,$soname -o $lib $libobjs $deplibs $compiler_flags'
+	  ;;
+      esac
+      ;;
+
+      sysv5* | sco3.2v5* | sco5v6*)
+	# Note: We CANNOT use -z defs as we might desire, because we do not
+	# link with -lc, and that would cause any symbols used from libc to
+	# always be unresolved, which means just about no library would
+	# ever link correctly.  If we're not using GNU ld we use -z text
+	# though, which does catch some bad symbols but isn't as heavy-handed
+	# as -z defs.
+	_LT_TAGVAR(no_undefined_flag, $1)='$wl-z,text'
+	_LT_TAGVAR(allow_undefined_flag, $1)='$wl-z,nodefs'
+	_LT_TAGVAR(archive_cmds_need_lc, $1)=no
+	_LT_TAGVAR(hardcode_shlibpath_var, $1)=no
+	_LT_TAGVAR(hardcode_libdir_flag_spec, $1)='$wl-R,$libdir'
+	_LT_TAGVAR(hardcode_libdir_separator, $1)=':'
+	_LT_TAGVAR(link_all_deplibs, $1)=yes
+	_LT_TAGVAR(export_dynamic_flag_spec, $1)='$wl-Bexport'
+	runpath_var='LD_RUN_PATH'
+
+	case $cc_basename in
+          CC*)
+	    _LT_TAGVAR(archive_cmds, $1)='$CC -G $wl-h,$soname -o $lib $libobjs $deplibs $compiler_flags'
+	    _LT_TAGVAR(archive_expsym_cmds, $1)='$CC -G $wl-Bexport:$export_symbols $wl-h,$soname -o $lib $libobjs $deplibs $compiler_flags'
+	    _LT_TAGVAR(old_archive_cmds, $1)='$CC -Tprelink_objects $oldobjs~
+              '"$_LT_TAGVAR(old_archive_cmds, $1)"
+	    _LT_TAGVAR(reload_cmds, $1)='$CC -Tprelink_objects $reload_objs~
+              '"$_LT_TAGVAR(reload_cmds, $1)"
+	    ;;
+	  *)
+	    _LT_TAGVAR(archive_cmds, $1)='$CC -shared $wl-h,$soname -o $lib $libobjs $deplibs $compiler_flags'
+	    _LT_TAGVAR(archive_expsym_cmds, $1)='$CC -shared $wl-Bexport:$export_symbols $wl-h,$soname -o $lib $libobjs $deplibs $compiler_flags'
+	    ;;
+	esac
+      ;;
+
+      tandem*)
+        case $cc_basename in
+          NCC*)
+	    # NonStop-UX NCC 3.20
+	    # FIXME: insert proper C++ library support
+	    _LT_TAGVAR(ld_shlibs, $1)=no
+	    ;;
+          *)
+	    # FIXME: insert proper C++ library support
+	    _LT_TAGVAR(ld_shlibs, $1)=no
+	    ;;
+        esac
+        ;;
+
+      vxworks*)
+        # FIXME: insert proper C++ library support
+        _LT_TAGVAR(ld_shlibs, $1)=no
+        ;;
+
+      *)
+        # FIXME: insert proper C++ library support
+        _LT_TAGVAR(ld_shlibs, $1)=no
+        ;;
+    esac
+
+    AC_MSG_RESULT([$_LT_TAGVAR(ld_shlibs, $1)])
+    test no = "$_LT_TAGVAR(ld_shlibs, $1)" && can_build_shared=no
+
+    _LT_TAGVAR(GCC, $1)=$GXX
+    _LT_TAGVAR(LD, $1)=$LD
+
+    ## CAVEAT EMPTOR:
+    ## There is no encapsulation within the following macros, do not change
+    ## the running order or otherwise move them around unless you know exactly
+    ## what you are doing...
+    _LT_SYS_HIDDEN_LIBDEPS($1)
+    _LT_COMPILER_PIC($1)
+    _LT_COMPILER_C_O($1)
+    _LT_COMPILER_FILE_LOCKS($1)
+    _LT_LINKER_SHLIBS($1)
+    _LT_SYS_DYNAMIC_LINKER($1)
+    _LT_LINKER_HARDCODE_LIBPATH($1)
+
+    _LT_CONFIG($1)
+  fi # test -n "$compiler"
+
+  CC=$lt_save_CC
+  CFLAGS=$lt_save_CFLAGS
+  LDCXX=$LD
+  LD=$lt_save_LD
+  GCC=$lt_save_GCC
+  with_gnu_ld=$lt_save_with_gnu_ld
+  lt_cv_path_LDCXX=$lt_cv_path_LD
+  lt_cv_path_LD=$lt_save_path_LD
+  lt_cv_prog_gnu_ldcxx=$lt_cv_prog_gnu_ld
+  lt_cv_prog_gnu_ld=$lt_save_with_gnu_ld
+fi # test yes != "$_lt_caught_CXX_error"
+
+AC_LANG_POP
+])# _LT_LANG_CXX_CONFIG
+
+
+# _LT_FUNC_STRIPNAME_CNF
+# ----------------------
+# func_stripname_cnf prefix suffix name
+# strip PREFIX and SUFFIX off of NAME.
+# PREFIX and SUFFIX must not contain globbing or regex special
+# characters, hashes, percent signs, but SUFFIX may contain a leading
+# dot (in which case that matches only a dot).
+#
+# This function is identical to the (non-XSI) version of func_stripname,
+# except this one can be used by m4 code that may be executed by configure,
+# rather than the libtool script.
+m4_defun([_LT_FUNC_STRIPNAME_CNF],[dnl
+AC_REQUIRE([_LT_DECL_SED])
+AC_REQUIRE([_LT_PROG_ECHO_BACKSLASH])
+func_stripname_cnf ()
+{
+  case @S|@2 in
+  .*) func_stripname_result=`$ECHO "@S|@3" | $SED "s%^@S|@1%%; s%\\\\@S|@2\$%%"`;;
+  *)  func_stripname_result=`$ECHO "@S|@3" | $SED "s%^@S|@1%%; s%@S|@2\$%%"`;;
+  esac
+} # func_stripname_cnf
+])# _LT_FUNC_STRIPNAME_CNF
+
+
+# _LT_SYS_HIDDEN_LIBDEPS([TAGNAME])
+# ---------------------------------
+# Figure out "hidden" library dependencies from verbose
+# compiler output when linking a shared library.
+# Parse the compiler output and extract the necessary
+# objects, libraries and library flags.
+m4_defun([_LT_SYS_HIDDEN_LIBDEPS],
+[m4_require([_LT_FILEUTILS_DEFAULTS])dnl
+AC_REQUIRE([_LT_FUNC_STRIPNAME_CNF])dnl
+# Dependencies to place before and after the object being linked:
+_LT_TAGVAR(predep_objects, $1)=
+_LT_TAGVAR(postdep_objects, $1)=
+_LT_TAGVAR(predeps, $1)=
+_LT_TAGVAR(postdeps, $1)=
+_LT_TAGVAR(compiler_lib_search_path, $1)=
+
+dnl we can't use the lt_simple_compile_test_code here,
+dnl because it contains code intended for an executable,
+dnl not a library.  It's possible we should let each
+dnl tag define a new lt_????_link_test_code variable,
+dnl but it's only used here...
+m4_if([$1], [], [cat > conftest.$ac_ext <<_LT_EOF
+int a;
+void foo (void) { a = 0; }
+_LT_EOF
+], [$1], [CXX], [cat > conftest.$ac_ext <<_LT_EOF
+class Foo
+{
+public:
+  Foo (void) { a = 0; }
+private:
+  int a;
+};
+_LT_EOF
+], [$1], [F77], [cat > conftest.$ac_ext <<_LT_EOF
+      subroutine foo
+      implicit none
+      integer*4 a
+      a=0
+      return
+      end
+_LT_EOF
+], [$1], [FC], [cat > conftest.$ac_ext <<_LT_EOF
+      subroutine foo
+      implicit none
+      integer a
+      a=0
+      return
+      end
+_LT_EOF
+], [$1], [GCJ], [cat > conftest.$ac_ext <<_LT_EOF
+public class foo {
+  private int a;
+  public void bar (void) {
+    a = 0;
+  }
+};
+_LT_EOF
+], [$1], [GO], [cat > conftest.$ac_ext <<_LT_EOF
+package foo
+func foo() {
+}
+_LT_EOF
+])
+
+_lt_libdeps_save_CFLAGS=$CFLAGS
+case "$CC $CFLAGS " in #(
+*\ -flto*\ *) CFLAGS="$CFLAGS -fno-lto" ;;
+*\ -fwhopr*\ *) CFLAGS="$CFLAGS -fno-whopr" ;;
+*\ -fuse-linker-plugin*\ *) CFLAGS="$CFLAGS -fno-use-linker-plugin" ;;
+esac
+
+dnl Parse the compiler output and extract the necessary
+dnl objects, libraries and library flags.
+if AC_TRY_EVAL(ac_compile); then
+  # Parse the compiler output and extract the necessary
+  # objects, libraries and library flags.
+
+  # Sentinel used to keep track of whether or not we are before
+  # the conftest object file.
+  pre_test_object_deps_done=no
+
+  for p in `eval "$output_verbose_link_cmd"`; do
+    case $prev$p in
+
+    -L* | -R* | -l*)
+       # Some compilers place space between "-{L,R}" and the path.
+       # Remove the space.
+       if test x-L = "$p" ||
+          test x-R = "$p"; then
+	 prev=$p
+	 continue
+       fi
+
+       # Expand the sysroot to ease extracting the directories later.
+       if test -z "$prev"; then
+         case $p in
+         -L*) func_stripname_cnf '-L' '' "$p"; prev=-L; p=$func_stripname_result ;;
+         -R*) func_stripname_cnf '-R' '' "$p"; prev=-R; p=$func_stripname_result ;;
+         -l*) func_stripname_cnf '-l' '' "$p"; prev=-l; p=$func_stripname_result ;;
+         esac
+       fi
+       case $p in
+       =*) func_stripname_cnf '=' '' "$p"; p=$lt_sysroot$func_stripname_result ;;
+       esac
+       if test no = "$pre_test_object_deps_done"; then
+	 case $prev in
+	 -L | -R)
+	   # Internal compiler library paths should come after those
+	   # provided the user.  The postdeps already come after the
+	   # user supplied libs so there is no need to process them.
+	   if test -z "$_LT_TAGVAR(compiler_lib_search_path, $1)"; then
+	     _LT_TAGVAR(compiler_lib_search_path, $1)=$prev$p
+	   else
+	     _LT_TAGVAR(compiler_lib_search_path, $1)="${_LT_TAGVAR(compiler_lib_search_path, $1)} $prev$p"
+	   fi
+	   ;;
+	 # The "-l" case would never come before the object being
+	 # linked, so don't bother handling this case.
+	 esac
+       else
+	 if test -z "$_LT_TAGVAR(postdeps, $1)"; then
+	   _LT_TAGVAR(postdeps, $1)=$prev$p
+	 else
+	   _LT_TAGVAR(postdeps, $1)="${_LT_TAGVAR(postdeps, $1)} $prev$p"
+	 fi
+       fi
+       prev=
+       ;;
+
+    *.lto.$objext) ;; # Ignore GCC LTO objects
+    *.$objext)
+       # This assumes that the test object file only shows up
+       # once in the compiler output.
+       if test "$p" = "conftest.$objext"; then
+	 pre_test_object_deps_done=yes
+	 continue
+       fi
+
+       if test no = "$pre_test_object_deps_done"; then
+	 if test -z "$_LT_TAGVAR(predep_objects, $1)"; then
+	   _LT_TAGVAR(predep_objects, $1)=$p
+	 else
+	   _LT_TAGVAR(predep_objects, $1)="$_LT_TAGVAR(predep_objects, $1) $p"
+	 fi
+       else
+	 if test -z "$_LT_TAGVAR(postdep_objects, $1)"; then
+	   _LT_TAGVAR(postdep_objects, $1)=$p
+	 else
+	   _LT_TAGVAR(postdep_objects, $1)="$_LT_TAGVAR(postdep_objects, $1) $p"
+	 fi
+       fi
+       ;;
+
+    *) ;; # Ignore the rest.
+
+    esac
+  done
+
+  # Clean up.
+  rm -f a.out a.exe
+else
+  echo "libtool.m4: error: problem compiling $1 test program"
+fi
+
+$RM -f confest.$objext
+CFLAGS=$_lt_libdeps_save_CFLAGS
+
+# PORTME: override above test on systems where it is broken
+m4_if([$1], [CXX],
+[case $host_os in
+interix[[3-9]]*)
+  # Interix 3.5 installs completely hosed .la files for C++, so rather than
+  # hack all around it, let's just trust "g++" to DTRT.
+  _LT_TAGVAR(predep_objects,$1)=
+  _LT_TAGVAR(postdep_objects,$1)=
+  _LT_TAGVAR(postdeps,$1)=
+  ;;
+esac
+])
+
+case " $_LT_TAGVAR(postdeps, $1) " in
+*" -lc "*) _LT_TAGVAR(archive_cmds_need_lc, $1)=no ;;
+esac
+ _LT_TAGVAR(compiler_lib_search_dirs, $1)=
+if test -n "${_LT_TAGVAR(compiler_lib_search_path, $1)}"; then
+ _LT_TAGVAR(compiler_lib_search_dirs, $1)=`echo " ${_LT_TAGVAR(compiler_lib_search_path, $1)}" | $SED -e 's! -L! !g' -e 's!^ !!'`
+fi
+_LT_TAGDECL([], [compiler_lib_search_dirs], [1],
+    [The directories searched by this compiler when creating a shared library])
+_LT_TAGDECL([], [predep_objects], [1],
+    [Dependencies to place before and after the objects being linked to
+    create a shared library])
+_LT_TAGDECL([], [postdep_objects], [1])
+_LT_TAGDECL([], [predeps], [1])
+_LT_TAGDECL([], [postdeps], [1])
+_LT_TAGDECL([], [compiler_lib_search_path], [1],
+    [The library search path used internally by the compiler when linking
+    a shared library])
+])# _LT_SYS_HIDDEN_LIBDEPS
+
+
+# _LT_LANG_F77_CONFIG([TAG])
+# --------------------------
+# Ensure that the configuration variables for a Fortran 77 compiler are
+# suitably defined.  These variables are subsequently used by _LT_CONFIG
+# to write the compiler configuration to 'libtool'.
+m4_defun([_LT_LANG_F77_CONFIG],
+[AC_LANG_PUSH(Fortran 77)
+if test -z "$F77" || test no = "$F77"; then
+  _lt_disable_F77=yes
+fi
+
+_LT_TAGVAR(archive_cmds_need_lc, $1)=no
+_LT_TAGVAR(allow_undefined_flag, $1)=
+_LT_TAGVAR(always_export_symbols, $1)=no
+_LT_TAGVAR(archive_expsym_cmds, $1)=
+_LT_TAGVAR(export_dynamic_flag_spec, $1)=
+_LT_TAGVAR(hardcode_direct, $1)=no
+_LT_TAGVAR(hardcode_direct_absolute, $1)=no
+_LT_TAGVAR(hardcode_libdir_flag_spec, $1)=
+_LT_TAGVAR(hardcode_libdir_separator, $1)=
+_LT_TAGVAR(hardcode_minus_L, $1)=no
+_LT_TAGVAR(hardcode_automatic, $1)=no
+_LT_TAGVAR(inherit_rpath, $1)=no
+_LT_TAGVAR(module_cmds, $1)=
+_LT_TAGVAR(module_expsym_cmds, $1)=
+_LT_TAGVAR(link_all_deplibs, $1)=unknown
+_LT_TAGVAR(old_archive_cmds, $1)=$old_archive_cmds
+_LT_TAGVAR(reload_flag, $1)=$reload_flag
+_LT_TAGVAR(reload_cmds, $1)=$reload_cmds
+_LT_TAGVAR(no_undefined_flag, $1)=
+_LT_TAGVAR(whole_archive_flag_spec, $1)=
+_LT_TAGVAR(enable_shared_with_static_runtimes, $1)=no
+
+# Source file extension for f77 test sources.
+ac_ext=f
+
+# Object file extension for compiled f77 test sources.
+objext=o
+_LT_TAGVAR(objext, $1)=$objext
+
+# No sense in running all these tests if we already determined that
+# the F77 compiler isn't working.  Some variables (like enable_shared)
+# are currently assumed to apply to all compilers on this platform,
+# and will be corrupted by setting them based on a non-working compiler.
+if test yes != "$_lt_disable_F77"; then
+  # Code to be used in simple compile tests
+  lt_simple_compile_test_code="\
+      subroutine t
+      return
+      end
+"
+
+  # Code to be used in simple link tests
+  lt_simple_link_test_code="\
+      program t
+      end
+"
+
+  # ltmain only uses $CC for tagged configurations so make sure $CC is set.
+  _LT_TAG_COMPILER
+
+  # save warnings/boilerplate of simple test code
+  _LT_COMPILER_BOILERPLATE
+  _LT_LINKER_BOILERPLATE
+
+  # Allow CC to be a program name with arguments.
+  lt_save_CC=$CC
+  lt_save_GCC=$GCC
+  lt_save_CFLAGS=$CFLAGS
+  CC=${F77-"f77"}
+  CFLAGS=$FFLAGS
+  compiler=$CC
+  _LT_TAGVAR(compiler, $1)=$CC
+  _LT_CC_BASENAME([$compiler])
+  GCC=$G77
+  if test -n "$compiler"; then
+    AC_MSG_CHECKING([if libtool supports shared libraries])
+    AC_MSG_RESULT([$can_build_shared])
+
+    AC_MSG_CHECKING([whether to build shared libraries])
+    test no = "$can_build_shared" && enable_shared=no
+
+    # On AIX, shared libraries and static libraries use the same namespace, and
+    # are all built from PIC.
+    case $host_os in
+      aix3*)
+        test yes = "$enable_shared" && enable_static=no
+        if test -n "$RANLIB"; then
+          archive_cmds="$archive_cmds~\$RANLIB \$lib"
+          postinstall_cmds='$RANLIB $lib'
+        fi
+        ;;
+      aix[[4-9]]*)
+	if test ia64 != "$host_cpu"; then
+	  case $enable_shared,$with_aix_soname,$aix_use_runtimelinking in
+	  yes,aix,yes) ;;		# shared object as lib.so file only
+	  yes,svr4,*) ;;		# shared object as lib.so archive member only
+	  yes,*) enable_static=no ;;	# shared object in lib.a archive as well
+	  esac
+	fi
+        ;;
+    esac
+    AC_MSG_RESULT([$enable_shared])
+
+    AC_MSG_CHECKING([whether to build static libraries])
+    # Make sure either enable_shared or enable_static is yes.
+    test yes = "$enable_shared" || enable_static=yes
+    AC_MSG_RESULT([$enable_static])
+
+    _LT_TAGVAR(GCC, $1)=$G77
+    _LT_TAGVAR(LD, $1)=$LD
+
+    ## CAVEAT EMPTOR:
+    ## There is no encapsulation within the following macros, do not change
+    ## the running order or otherwise move them around unless you know exactly
+    ## what you are doing...
+    _LT_COMPILER_PIC($1)
+    _LT_COMPILER_C_O($1)
+    _LT_COMPILER_FILE_LOCKS($1)
+    _LT_LINKER_SHLIBS($1)
+    _LT_SYS_DYNAMIC_LINKER($1)
+    _LT_LINKER_HARDCODE_LIBPATH($1)
+
+    _LT_CONFIG($1)
+  fi # test -n "$compiler"
+
+  GCC=$lt_save_GCC
+  CC=$lt_save_CC
+  CFLAGS=$lt_save_CFLAGS
+fi # test yes != "$_lt_disable_F77"
+
+AC_LANG_POP
+])# _LT_LANG_F77_CONFIG
+
+
+# _LT_LANG_FC_CONFIG([TAG])
+# -------------------------
+# Ensure that the configuration variables for a Fortran compiler are
+# suitably defined.  These variables are subsequently used by _LT_CONFIG
+# to write the compiler configuration to 'libtool'.
+m4_defun([_LT_LANG_FC_CONFIG],
+[AC_LANG_PUSH(Fortran)
+
+if test -z "$FC" || test no = "$FC"; then
+  _lt_disable_FC=yes
+fi
+
+_LT_TAGVAR(archive_cmds_need_lc, $1)=no
+_LT_TAGVAR(allow_undefined_flag, $1)=
+_LT_TAGVAR(always_export_symbols, $1)=no
+_LT_TAGVAR(archive_expsym_cmds, $1)=
+_LT_TAGVAR(export_dynamic_flag_spec, $1)=
+_LT_TAGVAR(hardcode_direct, $1)=no
+_LT_TAGVAR(hardcode_direct_absolute, $1)=no
+_LT_TAGVAR(hardcode_libdir_flag_spec, $1)=
+_LT_TAGVAR(hardcode_libdir_separator, $1)=
+_LT_TAGVAR(hardcode_minus_L, $1)=no
+_LT_TAGVAR(hardcode_automatic, $1)=no
+_LT_TAGVAR(inherit_rpath, $1)=no
+_LT_TAGVAR(module_cmds, $1)=
+_LT_TAGVAR(module_expsym_cmds, $1)=
+_LT_TAGVAR(link_all_deplibs, $1)=unknown
+_LT_TAGVAR(old_archive_cmds, $1)=$old_archive_cmds
+_LT_TAGVAR(reload_flag, $1)=$reload_flag
+_LT_TAGVAR(reload_cmds, $1)=$reload_cmds
+_LT_TAGVAR(no_undefined_flag, $1)=
+_LT_TAGVAR(whole_archive_flag_spec, $1)=
+_LT_TAGVAR(enable_shared_with_static_runtimes, $1)=no
+
+# Source file extension for fc test sources.
+ac_ext=${ac_fc_srcext-f}
+
+# Object file extension for compiled fc test sources.
+objext=o
+_LT_TAGVAR(objext, $1)=$objext
+
+# No sense in running all these tests if we already determined that
+# the FC compiler isn't working.  Some variables (like enable_shared)
+# are currently assumed to apply to all compilers on this platform,
+# and will be corrupted by setting them based on a non-working compiler.
+if test yes != "$_lt_disable_FC"; then
+  # Code to be used in simple compile tests
+  lt_simple_compile_test_code="\
+      subroutine t
+      return
+      end
+"
+
+  # Code to be used in simple link tests
+  lt_simple_link_test_code="\
+      program t
+      end
+"
+
+  # ltmain only uses $CC for tagged configurations so make sure $CC is set.
+  _LT_TAG_COMPILER
+
+  # save warnings/boilerplate of simple test code
+  _LT_COMPILER_BOILERPLATE
+  _LT_LINKER_BOILERPLATE
+
+  # Allow CC to be a program name with arguments.
+  lt_save_CC=$CC
+  lt_save_GCC=$GCC
+  lt_save_CFLAGS=$CFLAGS
+  CC=${FC-"f95"}
+  CFLAGS=$FCFLAGS
+  compiler=$CC
+  GCC=$ac_cv_fc_compiler_gnu
+
+  _LT_TAGVAR(compiler, $1)=$CC
+  _LT_CC_BASENAME([$compiler])
+
+  if test -n "$compiler"; then
+    AC_MSG_CHECKING([if libtool supports shared libraries])
+    AC_MSG_RESULT([$can_build_shared])
+
+    AC_MSG_CHECKING([whether to build shared libraries])
+    test no = "$can_build_shared" && enable_shared=no
+
+    # On AIX, shared libraries and static libraries use the same namespace, and
+    # are all built from PIC.
+    case $host_os in
+      aix3*)
+        test yes = "$enable_shared" && enable_static=no
+        if test -n "$RANLIB"; then
+          archive_cmds="$archive_cmds~\$RANLIB \$lib"
+          postinstall_cmds='$RANLIB $lib'
+        fi
+        ;;
+      aix[[4-9]]*)
+	if test ia64 != "$host_cpu"; then
+	  case $enable_shared,$with_aix_soname,$aix_use_runtimelinking in
+	  yes,aix,yes) ;;		# shared object as lib.so file only
+	  yes,svr4,*) ;;		# shared object as lib.so archive member only
+	  yes,*) enable_static=no ;;	# shared object in lib.a archive as well
+	  esac
+	fi
+        ;;
+    esac
+    AC_MSG_RESULT([$enable_shared])
+
+    AC_MSG_CHECKING([whether to build static libraries])
+    # Make sure either enable_shared or enable_static is yes.
+    test yes = "$enable_shared" || enable_static=yes
+    AC_MSG_RESULT([$enable_static])
+
+    _LT_TAGVAR(GCC, $1)=$ac_cv_fc_compiler_gnu
+    _LT_TAGVAR(LD, $1)=$LD
+
+    ## CAVEAT EMPTOR:
+    ## There is no encapsulation within the following macros, do not change
+    ## the running order or otherwise move them around unless you know exactly
+    ## what you are doing...
+    _LT_SYS_HIDDEN_LIBDEPS($1)
+    _LT_COMPILER_PIC($1)
+    _LT_COMPILER_C_O($1)
+    _LT_COMPILER_FILE_LOCKS($1)
+    _LT_LINKER_SHLIBS($1)
+    _LT_SYS_DYNAMIC_LINKER($1)
+    _LT_LINKER_HARDCODE_LIBPATH($1)
+
+    _LT_CONFIG($1)
+  fi # test -n "$compiler"
+
+  GCC=$lt_save_GCC
+  CC=$lt_save_CC
+  CFLAGS=$lt_save_CFLAGS
+fi # test yes != "$_lt_disable_FC"
+
+AC_LANG_POP
+])# _LT_LANG_FC_CONFIG
+
+
+# _LT_LANG_GCJ_CONFIG([TAG])
+# --------------------------
+# Ensure that the configuration variables for the GNU Java Compiler compiler
+# are suitably defined.  These variables are subsequently used by _LT_CONFIG
+# to write the compiler configuration to 'libtool'.
+m4_defun([_LT_LANG_GCJ_CONFIG],
+[AC_REQUIRE([LT_PROG_GCJ])dnl
+AC_LANG_SAVE
+
+# Source file extension for Java test sources.
+ac_ext=java
+
+# Object file extension for compiled Java test sources.
+objext=o
+_LT_TAGVAR(objext, $1)=$objext
+
+# Code to be used in simple compile tests
+lt_simple_compile_test_code="class foo {}"
+
+# Code to be used in simple link tests
+lt_simple_link_test_code='public class conftest { public static void main(String[[]] argv) {}; }'
+
+# ltmain only uses $CC for tagged configurations so make sure $CC is set.
+_LT_TAG_COMPILER
+
+# save warnings/boilerplate of simple test code
+_LT_COMPILER_BOILERPLATE
+_LT_LINKER_BOILERPLATE
+
+# Allow CC to be a program name with arguments.
+lt_save_CC=$CC
+lt_save_CFLAGS=$CFLAGS
+lt_save_GCC=$GCC
+GCC=yes
+CC=${GCJ-"gcj"}
+CFLAGS=$GCJFLAGS
+compiler=$CC
+_LT_TAGVAR(compiler, $1)=$CC
+_LT_TAGVAR(LD, $1)=$LD
+_LT_CC_BASENAME([$compiler])
+
+# GCJ did not exist at the time GCC didn't implicitly link libc in.
+_LT_TAGVAR(archive_cmds_need_lc, $1)=no
+
+_LT_TAGVAR(old_archive_cmds, $1)=$old_archive_cmds
+_LT_TAGVAR(reload_flag, $1)=$reload_flag
+_LT_TAGVAR(reload_cmds, $1)=$reload_cmds
+
+## CAVEAT EMPTOR:
+## There is no encapsulation within the following macros, do not change
+## the running order or otherwise move them around unless you know exactly
+## what you are doing...
+if test -n "$compiler"; then
+  _LT_COMPILER_NO_RTTI($1)
+  _LT_COMPILER_PIC($1)
+  _LT_COMPILER_C_O($1)
+  _LT_COMPILER_FILE_LOCKS($1)
+  _LT_LINKER_SHLIBS($1)
+  _LT_LINKER_HARDCODE_LIBPATH($1)
+
+  _LT_CONFIG($1)
+fi
+
+AC_LANG_RESTORE
+
+GCC=$lt_save_GCC
+CC=$lt_save_CC
+CFLAGS=$lt_save_CFLAGS
+])# _LT_LANG_GCJ_CONFIG
+
+
+# _LT_LANG_GO_CONFIG([TAG])
+# --------------------------
+# Ensure that the configuration variables for the GNU Go compiler
+# are suitably defined.  These variables are subsequently used by _LT_CONFIG
+# to write the compiler configuration to 'libtool'.
+m4_defun([_LT_LANG_GO_CONFIG],
+[AC_REQUIRE([LT_PROG_GO])dnl
+AC_LANG_SAVE
+
+# Source file extension for Go test sources.
+ac_ext=go
+
+# Object file extension for compiled Go test sources.
+objext=o
+_LT_TAGVAR(objext, $1)=$objext
+
+# Code to be used in simple compile tests
+lt_simple_compile_test_code="package main; func main() { }"
+
+# Code to be used in simple link tests
+lt_simple_link_test_code='package main; func main() { }'
+
+# ltmain only uses $CC for tagged configurations so make sure $CC is set.
+_LT_TAG_COMPILER
+
+# save warnings/boilerplate of simple test code
+_LT_COMPILER_BOILERPLATE
+_LT_LINKER_BOILERPLATE
+
+# Allow CC to be a program name with arguments.
+lt_save_CC=$CC
+lt_save_CFLAGS=$CFLAGS
+lt_save_GCC=$GCC
+GCC=yes
+CC=${GOC-"gccgo"}
+CFLAGS=$GOFLAGS
+compiler=$CC
+_LT_TAGVAR(compiler, $1)=$CC
+_LT_TAGVAR(LD, $1)=$LD
+_LT_CC_BASENAME([$compiler])
+
+# Go did not exist at the time GCC didn't implicitly link libc in.
+_LT_TAGVAR(archive_cmds_need_lc, $1)=no
+
+_LT_TAGVAR(old_archive_cmds, $1)=$old_archive_cmds
+_LT_TAGVAR(reload_flag, $1)=$reload_flag
+_LT_TAGVAR(reload_cmds, $1)=$reload_cmds
+
+## CAVEAT EMPTOR:
+## There is no encapsulation within the following macros, do not change
+## the running order or otherwise move them around unless you know exactly
+## what you are doing...
+if test -n "$compiler"; then
+  _LT_COMPILER_NO_RTTI($1)
+  _LT_COMPILER_PIC($1)
+  _LT_COMPILER_C_O($1)
+  _LT_COMPILER_FILE_LOCKS($1)
+  _LT_LINKER_SHLIBS($1)
+  _LT_LINKER_HARDCODE_LIBPATH($1)
+
+  _LT_CONFIG($1)
+fi
+
+AC_LANG_RESTORE
+
+GCC=$lt_save_GCC
+CC=$lt_save_CC
+CFLAGS=$lt_save_CFLAGS
+])# _LT_LANG_GO_CONFIG
+
+
+# _LT_LANG_RC_CONFIG([TAG])
+# -------------------------
+# Ensure that the configuration variables for the Windows resource compiler
+# are suitably defined.  These variables are subsequently used by _LT_CONFIG
+# to write the compiler configuration to 'libtool'.
+m4_defun([_LT_LANG_RC_CONFIG],
+[AC_REQUIRE([LT_PROG_RC])dnl
+AC_LANG_SAVE
+
+# Source file extension for RC test sources.
+ac_ext=rc
+
+# Object file extension for compiled RC test sources.
+objext=o
+_LT_TAGVAR(objext, $1)=$objext
+
+# Code to be used in simple compile tests
+lt_simple_compile_test_code='sample MENU { MENUITEM "&Soup", 100, CHECKED }'
+
+# Code to be used in simple link tests
+lt_simple_link_test_code=$lt_simple_compile_test_code
+
+# ltmain only uses $CC for tagged configurations so make sure $CC is set.
+_LT_TAG_COMPILER
+
+# save warnings/boilerplate of simple test code
+_LT_COMPILER_BOILERPLATE
+_LT_LINKER_BOILERPLATE
+
+# Allow CC to be a program name with arguments.
+lt_save_CC=$CC
+lt_save_CFLAGS=$CFLAGS
+lt_save_GCC=$GCC
+GCC=
+CC=${RC-"windres"}
+CFLAGS=
+compiler=$CC
+_LT_TAGVAR(compiler, $1)=$CC
+_LT_CC_BASENAME([$compiler])
+_LT_TAGVAR(lt_cv_prog_compiler_c_o, $1)=yes
+
+if test -n "$compiler"; then
+  :
+  _LT_CONFIG($1)
+fi
+
+GCC=$lt_save_GCC
+AC_LANG_RESTORE
+CC=$lt_save_CC
+CFLAGS=$lt_save_CFLAGS
+])# _LT_LANG_RC_CONFIG
+
+
+# LT_PROG_GCJ
+# -----------
+AC_DEFUN([LT_PROG_GCJ],
+[m4_ifdef([AC_PROG_GCJ], [AC_PROG_GCJ],
+  [m4_ifdef([A][M_PROG_GCJ], [A][M_PROG_GCJ],
+    [AC_CHECK_TOOL(GCJ, gcj,)
+      test set = "${GCJFLAGS+set}" || GCJFLAGS="-g -O2"
+      AC_SUBST(GCJFLAGS)])])[]dnl
+])
+
+# Old name:
+AU_ALIAS([LT_AC_PROG_GCJ], [LT_PROG_GCJ])
+dnl aclocal-1.4 backwards compatibility:
+dnl AC_DEFUN([LT_AC_PROG_GCJ], [])
+
+
+# LT_PROG_GO
+# ----------
+AC_DEFUN([LT_PROG_GO],
+[AC_CHECK_TOOL(GOC, gccgo,)
+])
+
+
+# LT_PROG_RC
+# ----------
+AC_DEFUN([LT_PROG_RC],
+[AC_CHECK_TOOL(RC, windres,)
+])
+
+# Old name:
+AU_ALIAS([LT_AC_PROG_RC], [LT_PROG_RC])
+dnl aclocal-1.4 backwards compatibility:
+dnl AC_DEFUN([LT_AC_PROG_RC], [])
+
+
+# _LT_DECL_EGREP
+# --------------
+# If we don't have a new enough Autoconf to choose the best grep
+# available, choose the one first in the user's PATH.
+m4_defun([_LT_DECL_EGREP],
+[AC_REQUIRE([AC_PROG_EGREP])dnl
+AC_REQUIRE([AC_PROG_FGREP])dnl
+test -z "$GREP" && GREP=grep
+_LT_DECL([], [GREP], [1], [A grep program that handles long lines])
+_LT_DECL([], [EGREP], [1], [An ERE matcher])
+_LT_DECL([], [FGREP], [1], [A literal string matcher])
+dnl Non-bleeding-edge autoconf doesn't subst GREP, so do it here too
+AC_SUBST([GREP])
+])
+
+
+# _LT_DECL_OBJDUMP
+# --------------
+# If we don't have a new enough Autoconf to choose the best objdump
+# available, choose the one first in the user's PATH.
+m4_defun([_LT_DECL_OBJDUMP],
+[AC_CHECK_TOOL(OBJDUMP, objdump, false)
+test -z "$OBJDUMP" && OBJDUMP=objdump
+_LT_DECL([], [OBJDUMP], [1], [An object symbol dumper])
+AC_SUBST([OBJDUMP])
+])
+
+# _LT_DECL_DLLTOOL
+# ----------------
+# Ensure DLLTOOL variable is set.
+m4_defun([_LT_DECL_DLLTOOL],
+[AC_CHECK_TOOL(DLLTOOL, dlltool, false)
+test -z "$DLLTOOL" && DLLTOOL=dlltool
+_LT_DECL([], [DLLTOOL], [1], [DLL creation program])
+AC_SUBST([DLLTOOL])
+])
+
+# _LT_DECL_SED
+# ------------
+# Check for a fully-functional sed program, that truncates
+# as few characters as possible.  Prefer GNU sed if found.
+m4_defun([_LT_DECL_SED],
+[AC_PROG_SED
+test -z "$SED" && SED=sed
+Xsed="$SED -e 1s/^X//"
+_LT_DECL([], [SED], [1], [A sed program that does not truncate output])
+_LT_DECL([], [Xsed], ["\$SED -e 1s/^X//"],
+    [Sed that helps us avoid accidentally triggering echo(1) options like -n])
+])# _LT_DECL_SED
+
+m4_ifndef([AC_PROG_SED], [
+############################################################
+# NOTE: This macro has been submitted for inclusion into   #
+#  GNU Autoconf as AC_PROG_SED.  When it is available in   #
+#  a released version of Autoconf we should remove this    #
+#  macro and use it instead.                               #
+############################################################
+
+m4_defun([AC_PROG_SED],
+[AC_MSG_CHECKING([for a sed that does not truncate output])
+AC_CACHE_VAL(lt_cv_path_SED,
+[# Loop through the user's path and test for sed and gsed.
+# Then use that list of sed's as ones to test for truncation.
+as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+for as_dir in $PATH
+do
+  IFS=$as_save_IFS
+  test -z "$as_dir" && as_dir=.
+  for lt_ac_prog in sed gsed; do
+    for ac_exec_ext in '' $ac_executable_extensions; do
+      if $as_executable_p "$as_dir/$lt_ac_prog$ac_exec_ext"; then
+        lt_ac_sed_list="$lt_ac_sed_list $as_dir/$lt_ac_prog$ac_exec_ext"
+      fi
+    done
+  done
+done
+IFS=$as_save_IFS
+lt_ac_max=0
+lt_ac_count=0
+# Add /usr/xpg4/bin/sed as it is typically found on Solaris
+# along with /bin/sed that truncates output.
+for lt_ac_sed in $lt_ac_sed_list /usr/xpg4/bin/sed; do
+  test ! -f "$lt_ac_sed" && continue
+  cat /dev/null > conftest.in
+  lt_ac_count=0
+  echo $ECHO_N "0123456789$ECHO_C" >conftest.in
+  # Check for GNU sed and select it if it is found.
+  if "$lt_ac_sed" --version 2>&1 < /dev/null | grep 'GNU' > /dev/null; then
+    lt_cv_path_SED=$lt_ac_sed
+    break
+  fi
+  while true; do
+    cat conftest.in conftest.in >conftest.tmp
+    mv conftest.tmp conftest.in
+    cp conftest.in conftest.nl
+    echo >>conftest.nl
+    $lt_ac_sed -e 's/a$//' < conftest.nl >conftest.out || break
+    cmp -s conftest.out conftest.nl || break
+    # 10000 chars as input seems more than enough
+    test 10 -lt "$lt_ac_count" && break
+    lt_ac_count=`expr $lt_ac_count + 1`
+    if test "$lt_ac_count" -gt "$lt_ac_max"; then
+      lt_ac_max=$lt_ac_count
+      lt_cv_path_SED=$lt_ac_sed
+    fi
+  done
+done
+])
+SED=$lt_cv_path_SED
+AC_SUBST([SED])
+AC_MSG_RESULT([$SED])
+])#AC_PROG_SED
+])#m4_ifndef
+
+# Old name:
+AU_ALIAS([LT_AC_PROG_SED], [AC_PROG_SED])
+dnl aclocal-1.4 backwards compatibility:
+dnl AC_DEFUN([LT_AC_PROG_SED], [])
+
+
+# _LT_CHECK_SHELL_FEATURES
+# ------------------------
+# Find out whether the shell is Bourne or XSI compatible,
+# or has some other useful features.
+m4_defun([_LT_CHECK_SHELL_FEATURES],
+[if ( (MAIL=60; unset MAIL) || exit) >/dev/null 2>&1; then
+  lt_unset=unset
+else
+  lt_unset=false
+fi
+_LT_DECL([], [lt_unset], [0], [whether the shell understands "unset"])dnl
+
+# test EBCDIC or ASCII
+case `echo X|tr X '\101'` in
+ A) # ASCII based system
+    # \n is not interpreted correctly by Solaris 8 /usr/ucb/tr
+  lt_SP2NL='tr \040 \012'
+  lt_NL2SP='tr \015\012 \040\040'
+  ;;
+ *) # EBCDIC based system
+  lt_SP2NL='tr \100 \n'
+  lt_NL2SP='tr \r\n \100\100'
+  ;;
+esac
+_LT_DECL([SP2NL], [lt_SP2NL], [1], [turn spaces into newlines])dnl
+_LT_DECL([NL2SP], [lt_NL2SP], [1], [turn newlines into spaces])dnl
+])# _LT_CHECK_SHELL_FEATURES
+
+
+# _LT_PATH_CONVERSION_FUNCTIONS
+# -----------------------------
+# Determine what file name conversion functions should be used by
+# func_to_host_file (and, implicitly, by func_to_host_path).  These are needed
+# for certain cross-compile configurations and native mingw.
+m4_defun([_LT_PATH_CONVERSION_FUNCTIONS],
+[AC_REQUIRE([AC_CANONICAL_HOST])dnl
+AC_REQUIRE([AC_CANONICAL_BUILD])dnl
+AC_MSG_CHECKING([how to convert $build file names to $host format])
+AC_CACHE_VAL(lt_cv_to_host_file_cmd,
+[case $host in
+  *-*-mingw* )
+    case $build in
+      *-*-mingw* ) # actually msys
+        lt_cv_to_host_file_cmd=func_convert_file_msys_to_w32
+        ;;
+      *-*-cygwin* )
+        lt_cv_to_host_file_cmd=func_convert_file_cygwin_to_w32
+        ;;
+      * ) # otherwise, assume *nix
+        lt_cv_to_host_file_cmd=func_convert_file_nix_to_w32
+        ;;
+    esac
+    ;;
+  *-*-cygwin* )
+    case $build in
+      *-*-mingw* ) # actually msys
+        lt_cv_to_host_file_cmd=func_convert_file_msys_to_cygwin
+        ;;
+      *-*-cygwin* )
+        lt_cv_to_host_file_cmd=func_convert_file_noop
+        ;;
+      * ) # otherwise, assume *nix
+        lt_cv_to_host_file_cmd=func_convert_file_nix_to_cygwin
+        ;;
+    esac
+    ;;
+  * ) # unhandled hosts (and "normal" native builds)
+    lt_cv_to_host_file_cmd=func_convert_file_noop
+    ;;
+esac
+])
+to_host_file_cmd=$lt_cv_to_host_file_cmd
+AC_MSG_RESULT([$lt_cv_to_host_file_cmd])
+_LT_DECL([to_host_file_cmd], [lt_cv_to_host_file_cmd],
+         [0], [convert $build file names to $host format])dnl
+
+AC_MSG_CHECKING([how to convert $build file names to toolchain format])
+AC_CACHE_VAL(lt_cv_to_tool_file_cmd,
+[#assume ordinary cross tools, or native build.
+lt_cv_to_tool_file_cmd=func_convert_file_noop
+case $host in
+  *-*-mingw* )
+    case $build in
+      *-*-mingw* ) # actually msys
+        lt_cv_to_tool_file_cmd=func_convert_file_msys_to_w32
+        ;;
+    esac
+    ;;
+esac
+])
+to_tool_file_cmd=$lt_cv_to_tool_file_cmd
+AC_MSG_RESULT([$lt_cv_to_tool_file_cmd])
+_LT_DECL([to_tool_file_cmd], [lt_cv_to_tool_file_cmd],
+         [0], [convert $build files to toolchain format])dnl
+])# _LT_PATH_CONVERSION_FUNCTIONS
diff --git a/m4/ltoptions.m4 b/m4/ltoptions.m4
new file mode 100644
index 0000000..94b0829
--- /dev/null
+++ b/m4/ltoptions.m4
@@ -0,0 +1,437 @@
+# Helper functions for option handling.                    -*- Autoconf -*-
+#
+#   Copyright (C) 2004-2005, 2007-2009, 2011-2015 Free Software
+#   Foundation, Inc.
+#   Written by Gary V. Vaughan, 2004
+#
+# This file is free software; the Free Software Foundation gives
+# unlimited permission to copy and/or distribute it, with or without
+# modifications, as long as this notice is preserved.
+
+# serial 8 ltoptions.m4
+
+# This is to help aclocal find these macros, as it can't see m4_define.
+AC_DEFUN([LTOPTIONS_VERSION], [m4_if([1])])
+
+
+# _LT_MANGLE_OPTION(MACRO-NAME, OPTION-NAME)
+# ------------------------------------------
+m4_define([_LT_MANGLE_OPTION],
+[[_LT_OPTION_]m4_bpatsubst($1__$2, [[^a-zA-Z0-9_]], [_])])
+
+
+# _LT_SET_OPTION(MACRO-NAME, OPTION-NAME)
+# ---------------------------------------
+# Set option OPTION-NAME for macro MACRO-NAME, and if there is a
+# matching handler defined, dispatch to it.  Other OPTION-NAMEs are
+# saved as a flag.
+m4_define([_LT_SET_OPTION],
+[m4_define(_LT_MANGLE_OPTION([$1], [$2]))dnl
+m4_ifdef(_LT_MANGLE_DEFUN([$1], [$2]),
+        _LT_MANGLE_DEFUN([$1], [$2]),
+    [m4_warning([Unknown $1 option '$2'])])[]dnl
+])
+
+
+# _LT_IF_OPTION(MACRO-NAME, OPTION-NAME, IF-SET, [IF-NOT-SET])
+# ------------------------------------------------------------
+# Execute IF-SET if OPTION is set, IF-NOT-SET otherwise.
+m4_define([_LT_IF_OPTION],
+[m4_ifdef(_LT_MANGLE_OPTION([$1], [$2]), [$3], [$4])])
+
+
+# _LT_UNLESS_OPTIONS(MACRO-NAME, OPTION-LIST, IF-NOT-SET)
+# -------------------------------------------------------
+# Execute IF-NOT-SET unless all options in OPTION-LIST for MACRO-NAME
+# are set.
+m4_define([_LT_UNLESS_OPTIONS],
+[m4_foreach([_LT_Option], m4_split(m4_normalize([$2])),
+	    [m4_ifdef(_LT_MANGLE_OPTION([$1], _LT_Option),
+		      [m4_define([$0_found])])])[]dnl
+m4_ifdef([$0_found], [m4_undefine([$0_found])], [$3
+])[]dnl
+])
+
+
+# _LT_SET_OPTIONS(MACRO-NAME, OPTION-LIST)
+# ----------------------------------------
+# OPTION-LIST is a space-separated list of Libtool options associated
+# with MACRO-NAME.  If any OPTION has a matching handler declared with
+# LT_OPTION_DEFINE, dispatch to that macro; otherwise complain about
+# the unknown option and exit.
+m4_defun([_LT_SET_OPTIONS],
+[# Set options
+m4_foreach([_LT_Option], m4_split(m4_normalize([$2])),
+    [_LT_SET_OPTION([$1], _LT_Option)])
+
+m4_if([$1],[LT_INIT],[
+  dnl
+  dnl Simply set some default values (i.e off) if boolean options were not
+  dnl specified:
+  _LT_UNLESS_OPTIONS([LT_INIT], [dlopen], [enable_dlopen=no
+  ])
+  _LT_UNLESS_OPTIONS([LT_INIT], [win32-dll], [enable_win32_dll=no
+  ])
+  dnl
+  dnl If no reference was made to various pairs of opposing options, then
+  dnl we run the default mode handler for the pair.  For example, if neither
+  dnl 'shared' nor 'disable-shared' was passed, we enable building of shared
+  dnl archives by default:
+  _LT_UNLESS_OPTIONS([LT_INIT], [shared disable-shared], [_LT_ENABLE_SHARED])
+  _LT_UNLESS_OPTIONS([LT_INIT], [static disable-static], [_LT_ENABLE_STATIC])
+  _LT_UNLESS_OPTIONS([LT_INIT], [pic-only no-pic], [_LT_WITH_PIC])
+  _LT_UNLESS_OPTIONS([LT_INIT], [fast-install disable-fast-install],
+		   [_LT_ENABLE_FAST_INSTALL])
+  _LT_UNLESS_OPTIONS([LT_INIT], [aix-soname=aix aix-soname=both aix-soname=svr4],
+		   [_LT_WITH_AIX_SONAME([aix])])
+  ])
+])# _LT_SET_OPTIONS
+
+
+## --------------------------------- ##
+## Macros to handle LT_INIT options. ##
+## --------------------------------- ##
+
+# _LT_MANGLE_DEFUN(MACRO-NAME, OPTION-NAME)
+# -----------------------------------------
+m4_define([_LT_MANGLE_DEFUN],
+[[_LT_OPTION_DEFUN_]m4_bpatsubst(m4_toupper([$1__$2]), [[^A-Z0-9_]], [_])])
+
+
+# LT_OPTION_DEFINE(MACRO-NAME, OPTION-NAME, CODE)
+# -----------------------------------------------
+m4_define([LT_OPTION_DEFINE],
+[m4_define(_LT_MANGLE_DEFUN([$1], [$2]), [$3])[]dnl
+])# LT_OPTION_DEFINE
+
+
+# dlopen
+# ------
+LT_OPTION_DEFINE([LT_INIT], [dlopen], [enable_dlopen=yes
+])
+
+AU_DEFUN([AC_LIBTOOL_DLOPEN],
+[_LT_SET_OPTION([LT_INIT], [dlopen])
+AC_DIAGNOSE([obsolete],
+[$0: Remove this warning and the call to _LT_SET_OPTION when you
+put the 'dlopen' option into LT_INIT's first parameter.])
+])
+
+dnl aclocal-1.4 backwards compatibility:
+dnl AC_DEFUN([AC_LIBTOOL_DLOPEN], [])
+
+
+# win32-dll
+# ---------
+# Declare package support for building win32 dll's.
+LT_OPTION_DEFINE([LT_INIT], [win32-dll],
+[enable_win32_dll=yes
+
+case $host in
+*-*-cygwin* | *-*-mingw* | *-*-pw32* | *-*-cegcc*)
+  AC_CHECK_TOOL(AS, as, false)
+  AC_CHECK_TOOL(DLLTOOL, dlltool, false)
+  AC_CHECK_TOOL(OBJDUMP, objdump, false)
+  ;;
+esac
+
+test -z "$AS" && AS=as
+_LT_DECL([], [AS],      [1], [Assembler program])dnl
+
+test -z "$DLLTOOL" && DLLTOOL=dlltool
+_LT_DECL([], [DLLTOOL], [1], [DLL creation program])dnl
+
+test -z "$OBJDUMP" && OBJDUMP=objdump
+_LT_DECL([], [OBJDUMP], [1], [Object dumper program])dnl
+])# win32-dll
+
+AU_DEFUN([AC_LIBTOOL_WIN32_DLL],
+[AC_REQUIRE([AC_CANONICAL_HOST])dnl
+_LT_SET_OPTION([LT_INIT], [win32-dll])
+AC_DIAGNOSE([obsolete],
+[$0: Remove this warning and the call to _LT_SET_OPTION when you
+put the 'win32-dll' option into LT_INIT's first parameter.])
+])
+
+dnl aclocal-1.4 backwards compatibility:
+dnl AC_DEFUN([AC_LIBTOOL_WIN32_DLL], [])
+
+
+# _LT_ENABLE_SHARED([DEFAULT])
+# ----------------------------
+# implement the --enable-shared flag, and supports the 'shared' and
+# 'disable-shared' LT_INIT options.
+# DEFAULT is either 'yes' or 'no'.  If omitted, it defaults to 'yes'.
+m4_define([_LT_ENABLE_SHARED],
+[m4_define([_LT_ENABLE_SHARED_DEFAULT], [m4_if($1, no, no, yes)])dnl
+AC_ARG_ENABLE([shared],
+    [AS_HELP_STRING([--enable-shared@<:@=PKGS@:>@],
+	[build shared libraries @<:@default=]_LT_ENABLE_SHARED_DEFAULT[@:>@])],
+    [p=${PACKAGE-default}
+    case $enableval in
+    yes) enable_shared=yes ;;
+    no) enable_shared=no ;;
+    *)
+      enable_shared=no
+      # Look at the argument we got.  We use all the common list separators.
+      lt_save_ifs=$IFS; IFS=$IFS$PATH_SEPARATOR,
+      for pkg in $enableval; do
+	IFS=$lt_save_ifs
+	if test "X$pkg" = "X$p"; then
+	  enable_shared=yes
+	fi
+      done
+      IFS=$lt_save_ifs
+      ;;
+    esac],
+    [enable_shared=]_LT_ENABLE_SHARED_DEFAULT)
+
+    _LT_DECL([build_libtool_libs], [enable_shared], [0],
+	[Whether or not to build shared libraries])
+])# _LT_ENABLE_SHARED
+
+LT_OPTION_DEFINE([LT_INIT], [shared], [_LT_ENABLE_SHARED([yes])])
+LT_OPTION_DEFINE([LT_INIT], [disable-shared], [_LT_ENABLE_SHARED([no])])
+
+# Old names:
+AC_DEFUN([AC_ENABLE_SHARED],
+[_LT_SET_OPTION([LT_INIT], m4_if([$1], [no], [disable-])[shared])
+])
+
+AC_DEFUN([AC_DISABLE_SHARED],
+[_LT_SET_OPTION([LT_INIT], [disable-shared])
+])
+
+AU_DEFUN([AM_ENABLE_SHARED], [AC_ENABLE_SHARED($@)])
+AU_DEFUN([AM_DISABLE_SHARED], [AC_DISABLE_SHARED($@)])
+
+dnl aclocal-1.4 backwards compatibility:
+dnl AC_DEFUN([AM_ENABLE_SHARED], [])
+dnl AC_DEFUN([AM_DISABLE_SHARED], [])
+
+
+
+# _LT_ENABLE_STATIC([DEFAULT])
+# ----------------------------
+# implement the --enable-static flag, and support the 'static' and
+# 'disable-static' LT_INIT options.
+# DEFAULT is either 'yes' or 'no'.  If omitted, it defaults to 'yes'.
+m4_define([_LT_ENABLE_STATIC],
+[m4_define([_LT_ENABLE_STATIC_DEFAULT], [m4_if($1, no, no, yes)])dnl
+AC_ARG_ENABLE([static],
+    [AS_HELP_STRING([--enable-static@<:@=PKGS@:>@],
+	[build static libraries @<:@default=]_LT_ENABLE_STATIC_DEFAULT[@:>@])],
+    [p=${PACKAGE-default}
+    case $enableval in
+    yes) enable_static=yes ;;
+    no) enable_static=no ;;
+    *)
+     enable_static=no
+      # Look at the argument we got.  We use all the common list separators.
+      lt_save_ifs=$IFS; IFS=$IFS$PATH_SEPARATOR,
+      for pkg in $enableval; do
+	IFS=$lt_save_ifs
+	if test "X$pkg" = "X$p"; then
+	  enable_static=yes
+	fi
+      done
+      IFS=$lt_save_ifs
+      ;;
+    esac],
+    [enable_static=]_LT_ENABLE_STATIC_DEFAULT)
+
+    _LT_DECL([build_old_libs], [enable_static], [0],
+	[Whether or not to build static libraries])
+])# _LT_ENABLE_STATIC
+
+LT_OPTION_DEFINE([LT_INIT], [static], [_LT_ENABLE_STATIC([yes])])
+LT_OPTION_DEFINE([LT_INIT], [disable-static], [_LT_ENABLE_STATIC([no])])
+
+# Old names:
+AC_DEFUN([AC_ENABLE_STATIC],
+[_LT_SET_OPTION([LT_INIT], m4_if([$1], [no], [disable-])[static])
+])
+
+AC_DEFUN([AC_DISABLE_STATIC],
+[_LT_SET_OPTION([LT_INIT], [disable-static])
+])
+
+AU_DEFUN([AM_ENABLE_STATIC], [AC_ENABLE_STATIC($@)])
+AU_DEFUN([AM_DISABLE_STATIC], [AC_DISABLE_STATIC($@)])
+
+dnl aclocal-1.4 backwards compatibility:
+dnl AC_DEFUN([AM_ENABLE_STATIC], [])
+dnl AC_DEFUN([AM_DISABLE_STATIC], [])
+
+
+
+# _LT_ENABLE_FAST_INSTALL([DEFAULT])
+# ----------------------------------
+# implement the --enable-fast-install flag, and support the 'fast-install'
+# and 'disable-fast-install' LT_INIT options.
+# DEFAULT is either 'yes' or 'no'.  If omitted, it defaults to 'yes'.
+m4_define([_LT_ENABLE_FAST_INSTALL],
+[m4_define([_LT_ENABLE_FAST_INSTALL_DEFAULT], [m4_if($1, no, no, yes)])dnl
+AC_ARG_ENABLE([fast-install],
+    [AS_HELP_STRING([--enable-fast-install@<:@=PKGS@:>@],
+    [optimize for fast installation @<:@default=]_LT_ENABLE_FAST_INSTALL_DEFAULT[@:>@])],
+    [p=${PACKAGE-default}
+    case $enableval in
+    yes) enable_fast_install=yes ;;
+    no) enable_fast_install=no ;;
+    *)
+      enable_fast_install=no
+      # Look at the argument we got.  We use all the common list separators.
+      lt_save_ifs=$IFS; IFS=$IFS$PATH_SEPARATOR,
+      for pkg in $enableval; do
+	IFS=$lt_save_ifs
+	if test "X$pkg" = "X$p"; then
+	  enable_fast_install=yes
+	fi
+      done
+      IFS=$lt_save_ifs
+      ;;
+    esac],
+    [enable_fast_install=]_LT_ENABLE_FAST_INSTALL_DEFAULT)
+
+_LT_DECL([fast_install], [enable_fast_install], [0],
+	 [Whether or not to optimize for fast installation])dnl
+])# _LT_ENABLE_FAST_INSTALL
+
+LT_OPTION_DEFINE([LT_INIT], [fast-install], [_LT_ENABLE_FAST_INSTALL([yes])])
+LT_OPTION_DEFINE([LT_INIT], [disable-fast-install], [_LT_ENABLE_FAST_INSTALL([no])])
+
+# Old names:
+AU_DEFUN([AC_ENABLE_FAST_INSTALL],
+[_LT_SET_OPTION([LT_INIT], m4_if([$1], [no], [disable-])[fast-install])
+AC_DIAGNOSE([obsolete],
+[$0: Remove this warning and the call to _LT_SET_OPTION when you put
+the 'fast-install' option into LT_INIT's first parameter.])
+])
+
+AU_DEFUN([AC_DISABLE_FAST_INSTALL],
+[_LT_SET_OPTION([LT_INIT], [disable-fast-install])
+AC_DIAGNOSE([obsolete],
+[$0: Remove this warning and the call to _LT_SET_OPTION when you put
+the 'disable-fast-install' option into LT_INIT's first parameter.])
+])
+
+dnl aclocal-1.4 backwards compatibility:
+dnl AC_DEFUN([AC_ENABLE_FAST_INSTALL], [])
+dnl AC_DEFUN([AM_DISABLE_FAST_INSTALL], [])
+
+
+# _LT_WITH_AIX_SONAME([DEFAULT])
+# ----------------------------------
+# implement the --with-aix-soname flag, and support the `aix-soname=aix'
+# and `aix-soname=both' and `aix-soname=svr4' LT_INIT options. DEFAULT
+# is either `aix', `both' or `svr4'.  If omitted, it defaults to `aix'.
+m4_define([_LT_WITH_AIX_SONAME],
+[m4_define([_LT_WITH_AIX_SONAME_DEFAULT], [m4_if($1, svr4, svr4, m4_if($1, both, both, aix))])dnl
+shared_archive_member_spec=
+case $host,$enable_shared in
+power*-*-aix[[5-9]]*,yes)
+  AC_MSG_CHECKING([which variant of shared library versioning to provide])
+  AC_ARG_WITH([aix-soname],
+    [AS_HELP_STRING([--with-aix-soname=aix|svr4|both],
+      [shared library versioning (aka "SONAME") variant to provide on AIX, @<:@default=]_LT_WITH_AIX_SONAME_DEFAULT[@:>@.])],
+    [case $withval in
+    aix|svr4|both)
+      ;;
+    *)
+      AC_MSG_ERROR([Unknown argument to --with-aix-soname])
+      ;;
+    esac
+    lt_cv_with_aix_soname=$with_aix_soname],
+    [AC_CACHE_VAL([lt_cv_with_aix_soname],
+      [lt_cv_with_aix_soname=]_LT_WITH_AIX_SONAME_DEFAULT)
+    with_aix_soname=$lt_cv_with_aix_soname])
+  AC_MSG_RESULT([$with_aix_soname])
+  if test aix != "$with_aix_soname"; then
+    # For the AIX way of multilib, we name the shared archive member
+    # based on the bitwidth used, traditionally 'shr.o' or 'shr_64.o',
+    # and 'shr.imp' or 'shr_64.imp', respectively, for the Import File.
+    # Even when GNU compilers ignore OBJECT_MODE but need '-maix64' flag,
+    # the AIX toolchain works better with OBJECT_MODE set (default 32).
+    if test 64 = "${OBJECT_MODE-32}"; then
+      shared_archive_member_spec=shr_64
+    else
+      shared_archive_member_spec=shr
+    fi
+  fi
+  ;;
+*)
+  with_aix_soname=aix
+  ;;
+esac
+
+_LT_DECL([], [shared_archive_member_spec], [0],
+    [Shared archive member basename, for filename based shared library versioning on AIX])dnl
+])# _LT_WITH_AIX_SONAME
+
+LT_OPTION_DEFINE([LT_INIT], [aix-soname=aix], [_LT_WITH_AIX_SONAME([aix])])
+LT_OPTION_DEFINE([LT_INIT], [aix-soname=both], [_LT_WITH_AIX_SONAME([both])])
+LT_OPTION_DEFINE([LT_INIT], [aix-soname=svr4], [_LT_WITH_AIX_SONAME([svr4])])
+
+
+# _LT_WITH_PIC([MODE])
+# --------------------
+# implement the --with-pic flag, and support the 'pic-only' and 'no-pic'
+# LT_INIT options.
+# MODE is either 'yes' or 'no'.  If omitted, it defaults to 'both'.
+m4_define([_LT_WITH_PIC],
+[AC_ARG_WITH([pic],
+    [AS_HELP_STRING([--with-pic@<:@=PKGS@:>@],
+	[try to use only PIC/non-PIC objects @<:@default=use both@:>@])],
+    [lt_p=${PACKAGE-default}
+    case $withval in
+    yes|no) pic_mode=$withval ;;
+    *)
+      pic_mode=default
+      # Look at the argument we got.  We use all the common list separators.
+      lt_save_ifs=$IFS; IFS=$IFS$PATH_SEPARATOR,
+      for lt_pkg in $withval; do
+	IFS=$lt_save_ifs
+	if test "X$lt_pkg" = "X$lt_p"; then
+	  pic_mode=yes
+	fi
+      done
+      IFS=$lt_save_ifs
+      ;;
+    esac],
+    [pic_mode=m4_default([$1], [default])])
+
+_LT_DECL([], [pic_mode], [0], [What type of objects to build])dnl
+])# _LT_WITH_PIC
+
+LT_OPTION_DEFINE([LT_INIT], [pic-only], [_LT_WITH_PIC([yes])])
+LT_OPTION_DEFINE([LT_INIT], [no-pic], [_LT_WITH_PIC([no])])
+
+# Old name:
+AU_DEFUN([AC_LIBTOOL_PICMODE],
+[_LT_SET_OPTION([LT_INIT], [pic-only])
+AC_DIAGNOSE([obsolete],
+[$0: Remove this warning and the call to _LT_SET_OPTION when you
+put the 'pic-only' option into LT_INIT's first parameter.])
+])
+
+dnl aclocal-1.4 backwards compatibility:
+dnl AC_DEFUN([AC_LIBTOOL_PICMODE], [])
+
+## ----------------- ##
+## LTDL_INIT Options ##
+## ----------------- ##
+
+m4_define([_LTDL_MODE], [])
+LT_OPTION_DEFINE([LTDL_INIT], [nonrecursive],
+		 [m4_define([_LTDL_MODE], [nonrecursive])])
+LT_OPTION_DEFINE([LTDL_INIT], [recursive],
+		 [m4_define([_LTDL_MODE], [recursive])])
+LT_OPTION_DEFINE([LTDL_INIT], [subproject],
+		 [m4_define([_LTDL_MODE], [subproject])])
+
+m4_define([_LTDL_TYPE], [])
+LT_OPTION_DEFINE([LTDL_INIT], [installable],
+		 [m4_define([_LTDL_TYPE], [installable])])
+LT_OPTION_DEFINE([LTDL_INIT], [convenience],
+		 [m4_define([_LTDL_TYPE], [convenience])])
diff --git a/m4/ltsugar.m4 b/m4/ltsugar.m4
new file mode 100644
index 0000000..48bc934
--- /dev/null
+++ b/m4/ltsugar.m4
@@ -0,0 +1,124 @@
+# ltsugar.m4 -- libtool m4 base layer.                         -*-Autoconf-*-
+#
+# Copyright (C) 2004-2005, 2007-2008, 2011-2015 Free Software
+# Foundation, Inc.
+# Written by Gary V. Vaughan, 2004
+#
+# This file is free software; the Free Software Foundation gives
+# unlimited permission to copy and/or distribute it, with or without
+# modifications, as long as this notice is preserved.
+
+# serial 6 ltsugar.m4
+
+# This is to help aclocal find these macros, as it can't see m4_define.
+AC_DEFUN([LTSUGAR_VERSION], [m4_if([0.1])])
+
+
+# lt_join(SEP, ARG1, [ARG2...])
+# -----------------------------
+# Produce ARG1SEPARG2...SEPARGn, omitting [] arguments and their
+# associated separator.
+# Needed until we can rely on m4_join from Autoconf 2.62, since all earlier
+# versions in m4sugar had bugs.
+m4_define([lt_join],
+[m4_if([$#], [1], [],
+       [$#], [2], [[$2]],
+       [m4_if([$2], [], [], [[$2]_])$0([$1], m4_shift(m4_shift($@)))])])
+m4_define([_lt_join],
+[m4_if([$#$2], [2], [],
+       [m4_if([$2], [], [], [[$1$2]])$0([$1], m4_shift(m4_shift($@)))])])
+
+
+# lt_car(LIST)
+# lt_cdr(LIST)
+# ------------
+# Manipulate m4 lists.
+# These macros are necessary as long as will still need to support
+# Autoconf-2.59, which quotes differently.
+m4_define([lt_car], [[$1]])
+m4_define([lt_cdr],
+[m4_if([$#], 0, [m4_fatal([$0: cannot be called without arguments])],
+       [$#], 1, [],
+       [m4_dquote(m4_shift($@))])])
+m4_define([lt_unquote], $1)
+
+
+# lt_append(MACRO-NAME, STRING, [SEPARATOR])
+# ------------------------------------------
+# Redefine MACRO-NAME to hold its former content plus 'SEPARATOR''STRING'.
+# Note that neither SEPARATOR nor STRING are expanded; they are appended
+# to MACRO-NAME as is (leaving the expansion for when MACRO-NAME is invoked).
+# No SEPARATOR is output if MACRO-NAME was previously undefined (different
+# than defined and empty).
+#
+# This macro is needed until we can rely on Autoconf 2.62, since earlier
+# versions of m4sugar mistakenly expanded SEPARATOR but not STRING.
+m4_define([lt_append],
+[m4_define([$1],
+	   m4_ifdef([$1], [m4_defn([$1])[$3]])[$2])])
+
+
+
+# lt_combine(SEP, PREFIX-LIST, INFIX, SUFFIX1, [SUFFIX2...])
+# ----------------------------------------------------------
+# Produce a SEP delimited list of all paired combinations of elements of
+# PREFIX-LIST with SUFFIX1 through SUFFIXn.  Each element of the list
+# has the form PREFIXmINFIXSUFFIXn.
+# Needed until we can rely on m4_combine added in Autoconf 2.62.
+m4_define([lt_combine],
+[m4_if(m4_eval([$# > 3]), [1],
+       [m4_pushdef([_Lt_sep], [m4_define([_Lt_sep], m4_defn([lt_car]))])]]dnl
+[[m4_foreach([_Lt_prefix], [$2],
+	     [m4_foreach([_Lt_suffix],
+		]m4_dquote(m4_dquote(m4_shift(m4_shift(m4_shift($@)))))[,
+	[_Lt_sep([$1])[]m4_defn([_Lt_prefix])[$3]m4_defn([_Lt_suffix])])])])])
+
+
+# lt_if_append_uniq(MACRO-NAME, VARNAME, [SEPARATOR], [UNIQ], [NOT-UNIQ])
+# -----------------------------------------------------------------------
+# Iff MACRO-NAME does not yet contain VARNAME, then append it (delimited
+# by SEPARATOR if supplied) and expand UNIQ, else NOT-UNIQ.
+m4_define([lt_if_append_uniq],
+[m4_ifdef([$1],
+	  [m4_if(m4_index([$3]m4_defn([$1])[$3], [$3$2$3]), [-1],
+		 [lt_append([$1], [$2], [$3])$4],
+		 [$5])],
+	  [lt_append([$1], [$2], [$3])$4])])
+
+
+# lt_dict_add(DICT, KEY, VALUE)
+# -----------------------------
+m4_define([lt_dict_add],
+[m4_define([$1($2)], [$3])])
+
+
+# lt_dict_add_subkey(DICT, KEY, SUBKEY, VALUE)
+# --------------------------------------------
+m4_define([lt_dict_add_subkey],
+[m4_define([$1($2:$3)], [$4])])
+
+
+# lt_dict_fetch(DICT, KEY, [SUBKEY])
+# ----------------------------------
+m4_define([lt_dict_fetch],
+[m4_ifval([$3],
+	m4_ifdef([$1($2:$3)], [m4_defn([$1($2:$3)])]),
+    m4_ifdef([$1($2)], [m4_defn([$1($2)])]))])
+
+
+# lt_if_dict_fetch(DICT, KEY, [SUBKEY], VALUE, IF-TRUE, [IF-FALSE])
+# -----------------------------------------------------------------
+m4_define([lt_if_dict_fetch],
+[m4_if(lt_dict_fetch([$1], [$2], [$3]), [$4],
+	[$5],
+    [$6])])
+
+
+# lt_dict_filter(DICT, [SUBKEY], VALUE, [SEPARATOR], KEY, [...])
+# --------------------------------------------------------------
+m4_define([lt_dict_filter],
+[m4_if([$5], [], [],
+  [lt_join(m4_quote(m4_default([$4], [[, ]])),
+           lt_unquote(m4_split(m4_normalize(m4_foreach(_Lt_key, lt_car([m4_shiftn(4, $@)]),
+		      [lt_if_dict_fetch([$1], _Lt_key, [$2], [$3], [_Lt_key ])])))))])[]dnl
+])
diff --git a/m4/ltversion.m4 b/m4/ltversion.m4
new file mode 100644
index 0000000..fa04b52
--- /dev/null
+++ b/m4/ltversion.m4
@@ -0,0 +1,23 @@
+# ltversion.m4 -- version numbers			-*- Autoconf -*-
+#
+#   Copyright (C) 2004, 2011-2015 Free Software Foundation, Inc.
+#   Written by Scott James Remnant, 2004
+#
+# This file is free software; the Free Software Foundation gives
+# unlimited permission to copy and/or distribute it, with or without
+# modifications, as long as this notice is preserved.
+
+# @configure_input@
+
+# serial 4179 ltversion.m4
+# This file is part of GNU Libtool
+
+m4_define([LT_PACKAGE_VERSION], [2.4.6])
+m4_define([LT_PACKAGE_REVISION], [2.4.6])
+
+AC_DEFUN([LTVERSION_VERSION],
+[macro_version='2.4.6'
+macro_revision='2.4.6'
+_LT_DECL(, macro_version, 0, [Which release of libtool.m4 was used?])
+_LT_DECL(, macro_revision, 0)
+])
diff --git a/m4/lt~obsolete.m4 b/m4/lt~obsolete.m4
new file mode 100644
index 0000000..c6b26f8
--- /dev/null
+++ b/m4/lt~obsolete.m4
@@ -0,0 +1,99 @@
+# lt~obsolete.m4 -- aclocal satisfying obsolete definitions.    -*-Autoconf-*-
+#
+#   Copyright (C) 2004-2005, 2007, 2009, 2011-2015 Free Software
+#   Foundation, Inc.
+#   Written by Scott James Remnant, 2004.
+#
+# This file is free software; the Free Software Foundation gives
+# unlimited permission to copy and/or distribute it, with or without
+# modifications, as long as this notice is preserved.
+
+# serial 5 lt~obsolete.m4
+
+# These exist entirely to fool aclocal when bootstrapping libtool.
+#
+# In the past libtool.m4 has provided macros via AC_DEFUN (or AU_DEFUN),
+# which have later been changed to m4_define as they aren't part of the
+# exported API, or moved to Autoconf or Automake where they belong.
+#
+# The trouble is, aclocal is a bit thick.  It'll see the old AC_DEFUN
+# in /usr/share/aclocal/libtool.m4 and remember it, then when it sees us
+# using a macro with the same name in our local m4/libtool.m4 it'll
+# pull the old libtool.m4 in (it doesn't see our shiny new m4_define
+# and doesn't know about Autoconf macros at all.)
+#
+# So we provide this file, which has a silly filename so it's always
+# included after everything else.  This provides aclocal with the
+# AC_DEFUNs it wants, but when m4 processes it, it doesn't do anything
+# because those macros already exist, or will be overwritten later.
+# We use AC_DEFUN over AU_DEFUN for compatibility with aclocal-1.6.
+#
+# Anytime we withdraw an AC_DEFUN or AU_DEFUN, remember to add it here.
+# Yes, that means every name once taken will need to remain here until
+# we give up compatibility with versions before 1.7, at which point
+# we need to keep only those names which we still refer to.
+
+# This is to help aclocal find these macros, as it can't see m4_define.
+AC_DEFUN([LTOBSOLETE_VERSION], [m4_if([1])])
+
+m4_ifndef([AC_LIBTOOL_LINKER_OPTION],	[AC_DEFUN([AC_LIBTOOL_LINKER_OPTION])])
+m4_ifndef([AC_PROG_EGREP],		[AC_DEFUN([AC_PROG_EGREP])])
+m4_ifndef([_LT_AC_PROG_ECHO_BACKSLASH],	[AC_DEFUN([_LT_AC_PROG_ECHO_BACKSLASH])])
+m4_ifndef([_LT_AC_SHELL_INIT],		[AC_DEFUN([_LT_AC_SHELL_INIT])])
+m4_ifndef([_LT_AC_SYS_LIBPATH_AIX],	[AC_DEFUN([_LT_AC_SYS_LIBPATH_AIX])])
+m4_ifndef([_LT_PROG_LTMAIN],		[AC_DEFUN([_LT_PROG_LTMAIN])])
+m4_ifndef([_LT_AC_TAGVAR],		[AC_DEFUN([_LT_AC_TAGVAR])])
+m4_ifndef([AC_LTDL_ENABLE_INSTALL],	[AC_DEFUN([AC_LTDL_ENABLE_INSTALL])])
+m4_ifndef([AC_LTDL_PREOPEN],		[AC_DEFUN([AC_LTDL_PREOPEN])])
+m4_ifndef([_LT_AC_SYS_COMPILER],	[AC_DEFUN([_LT_AC_SYS_COMPILER])])
+m4_ifndef([_LT_AC_LOCK],		[AC_DEFUN([_LT_AC_LOCK])])
+m4_ifndef([AC_LIBTOOL_SYS_OLD_ARCHIVE],	[AC_DEFUN([AC_LIBTOOL_SYS_OLD_ARCHIVE])])
+m4_ifndef([_LT_AC_TRY_DLOPEN_SELF],	[AC_DEFUN([_LT_AC_TRY_DLOPEN_SELF])])
+m4_ifndef([AC_LIBTOOL_PROG_CC_C_O],	[AC_DEFUN([AC_LIBTOOL_PROG_CC_C_O])])
+m4_ifndef([AC_LIBTOOL_SYS_HARD_LINK_LOCKS], [AC_DEFUN([AC_LIBTOOL_SYS_HARD_LINK_LOCKS])])
+m4_ifndef([AC_LIBTOOL_OBJDIR],		[AC_DEFUN([AC_LIBTOOL_OBJDIR])])
+m4_ifndef([AC_LTDL_OBJDIR],		[AC_DEFUN([AC_LTDL_OBJDIR])])
+m4_ifndef([AC_LIBTOOL_PROG_LD_HARDCODE_LIBPATH], [AC_DEFUN([AC_LIBTOOL_PROG_LD_HARDCODE_LIBPATH])])
+m4_ifndef([AC_LIBTOOL_SYS_LIB_STRIP],	[AC_DEFUN([AC_LIBTOOL_SYS_LIB_STRIP])])
+m4_ifndef([AC_PATH_MAGIC],		[AC_DEFUN([AC_PATH_MAGIC])])
+m4_ifndef([AC_PROG_LD_GNU],		[AC_DEFUN([AC_PROG_LD_GNU])])
+m4_ifndef([AC_PROG_LD_RELOAD_FLAG],	[AC_DEFUN([AC_PROG_LD_RELOAD_FLAG])])
+m4_ifndef([AC_DEPLIBS_CHECK_METHOD],	[AC_DEFUN([AC_DEPLIBS_CHECK_METHOD])])
+m4_ifndef([AC_LIBTOOL_PROG_COMPILER_NO_RTTI], [AC_DEFUN([AC_LIBTOOL_PROG_COMPILER_NO_RTTI])])
+m4_ifndef([AC_LIBTOOL_SYS_GLOBAL_SYMBOL_PIPE], [AC_DEFUN([AC_LIBTOOL_SYS_GLOBAL_SYMBOL_PIPE])])
+m4_ifndef([AC_LIBTOOL_PROG_COMPILER_PIC], [AC_DEFUN([AC_LIBTOOL_PROG_COMPILER_PIC])])
+m4_ifndef([AC_LIBTOOL_PROG_LD_SHLIBS],	[AC_DEFUN([AC_LIBTOOL_PROG_LD_SHLIBS])])
+m4_ifndef([AC_LIBTOOL_POSTDEP_PREDEP],	[AC_DEFUN([AC_LIBTOOL_POSTDEP_PREDEP])])
+m4_ifndef([LT_AC_PROG_EGREP],		[AC_DEFUN([LT_AC_PROG_EGREP])])
+m4_ifndef([LT_AC_PROG_SED],		[AC_DEFUN([LT_AC_PROG_SED])])
+m4_ifndef([_LT_CC_BASENAME],		[AC_DEFUN([_LT_CC_BASENAME])])
+m4_ifndef([_LT_COMPILER_BOILERPLATE],	[AC_DEFUN([_LT_COMPILER_BOILERPLATE])])
+m4_ifndef([_LT_LINKER_BOILERPLATE],	[AC_DEFUN([_LT_LINKER_BOILERPLATE])])
+m4_ifndef([_AC_PROG_LIBTOOL],		[AC_DEFUN([_AC_PROG_LIBTOOL])])
+m4_ifndef([AC_LIBTOOL_SETUP],		[AC_DEFUN([AC_LIBTOOL_SETUP])])
+m4_ifndef([_LT_AC_CHECK_DLFCN],		[AC_DEFUN([_LT_AC_CHECK_DLFCN])])
+m4_ifndef([AC_LIBTOOL_SYS_DYNAMIC_LINKER],	[AC_DEFUN([AC_LIBTOOL_SYS_DYNAMIC_LINKER])])
+m4_ifndef([_LT_AC_TAGCONFIG],		[AC_DEFUN([_LT_AC_TAGCONFIG])])
+m4_ifndef([AC_DISABLE_FAST_INSTALL],	[AC_DEFUN([AC_DISABLE_FAST_INSTALL])])
+m4_ifndef([_LT_AC_LANG_CXX],		[AC_DEFUN([_LT_AC_LANG_CXX])])
+m4_ifndef([_LT_AC_LANG_F77],		[AC_DEFUN([_LT_AC_LANG_F77])])
+m4_ifndef([_LT_AC_LANG_GCJ],		[AC_DEFUN([_LT_AC_LANG_GCJ])])
+m4_ifndef([AC_LIBTOOL_LANG_C_CONFIG],	[AC_DEFUN([AC_LIBTOOL_LANG_C_CONFIG])])
+m4_ifndef([_LT_AC_LANG_C_CONFIG],	[AC_DEFUN([_LT_AC_LANG_C_CONFIG])])
+m4_ifndef([AC_LIBTOOL_LANG_CXX_CONFIG],	[AC_DEFUN([AC_LIBTOOL_LANG_CXX_CONFIG])])
+m4_ifndef([_LT_AC_LANG_CXX_CONFIG],	[AC_DEFUN([_LT_AC_LANG_CXX_CONFIG])])
+m4_ifndef([AC_LIBTOOL_LANG_F77_CONFIG],	[AC_DEFUN([AC_LIBTOOL_LANG_F77_CONFIG])])
+m4_ifndef([_LT_AC_LANG_F77_CONFIG],	[AC_DEFUN([_LT_AC_LANG_F77_CONFIG])])
+m4_ifndef([AC_LIBTOOL_LANG_GCJ_CONFIG],	[AC_DEFUN([AC_LIBTOOL_LANG_GCJ_CONFIG])])
+m4_ifndef([_LT_AC_LANG_GCJ_CONFIG],	[AC_DEFUN([_LT_AC_LANG_GCJ_CONFIG])])
+m4_ifndef([AC_LIBTOOL_LANG_RC_CONFIG],	[AC_DEFUN([AC_LIBTOOL_LANG_RC_CONFIG])])
+m4_ifndef([_LT_AC_LANG_RC_CONFIG],	[AC_DEFUN([_LT_AC_LANG_RC_CONFIG])])
+m4_ifndef([AC_LIBTOOL_CONFIG],		[AC_DEFUN([AC_LIBTOOL_CONFIG])])
+m4_ifndef([_LT_AC_FILE_LTDLL_C],	[AC_DEFUN([_LT_AC_FILE_LTDLL_C])])
+m4_ifndef([_LT_REQUIRED_DARWIN_CHECKS],	[AC_DEFUN([_LT_REQUIRED_DARWIN_CHECKS])])
+m4_ifndef([_LT_AC_PROG_CXXCPP],		[AC_DEFUN([_LT_AC_PROG_CXXCPP])])
+m4_ifndef([_LT_PREPARE_SED_QUOTE_VARS],	[AC_DEFUN([_LT_PREPARE_SED_QUOTE_VARS])])
+m4_ifndef([_LT_PROG_ECHO_BACKSLASH],	[AC_DEFUN([_LT_PROG_ECHO_BACKSLASH])])
+m4_ifndef([_LT_PROG_F77],		[AC_DEFUN([_LT_PROG_F77])])
+m4_ifndef([_LT_PROG_FC],		[AC_DEFUN([_LT_PROG_FC])])
+m4_ifndef([_LT_PROG_CXX],		[AC_DEFUN([_LT_PROG_CXX])])
diff --git a/missing b/missing
new file mode 100755
index 0000000..625aeb1
--- /dev/null
+++ b/missing
@@ -0,0 +1,215 @@
+#! /bin/sh
+# Common wrapper for a few potentially missing GNU programs.
+
+scriptversion=2018-03-07.03; # UTC
+
+# Copyright (C) 1996-2018 Free Software Foundation, Inc.
+# Originally written by Fran,cois Pinard <pinard@iro.umontreal.ca>, 1996.
+
+# This program is free software; you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation; either version 2, or (at your option)
+# any later version.
+
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+
+# You should have received a copy of the GNU General Public License
+# along with this program.  If not, see <https://www.gnu.org/licenses/>.
+
+# As a special exception to the GNU General Public License, if you
+# distribute this file as part of a program that contains a
+# configuration script generated by Autoconf, you may include it under
+# the same distribution terms that you use for the rest of that program.
+
+if test $# -eq 0; then
+  echo 1>&2 "Try '$0 --help' for more information"
+  exit 1
+fi
+
+case $1 in
+
+  --is-lightweight)
+    # Used by our autoconf macros to check whether the available missing
+    # script is modern enough.
+    exit 0
+    ;;
+
+  --run)
+    # Back-compat with the calling convention used by older automake.
+    shift
+    ;;
+
+  -h|--h|--he|--hel|--help)
+    echo "\
+$0 [OPTION]... PROGRAM [ARGUMENT]...
+
+Run 'PROGRAM [ARGUMENT]...', returning a proper advice when this fails due
+to PROGRAM being missing or too old.
+
+Options:
+  -h, --help      display this help and exit
+  -v, --version   output version information and exit
+
+Supported PROGRAM values:
+  aclocal   autoconf  autoheader   autom4te  automake  makeinfo
+  bison     yacc      flex         lex       help2man
+
+Version suffixes to PROGRAM as well as the prefixes 'gnu-', 'gnu', and
+'g' are ignored when checking the name.
+
+Send bug reports to <bug-automake@gnu.org>."
+    exit $?
+    ;;
+
+  -v|--v|--ve|--ver|--vers|--versi|--versio|--version)
+    echo "missing $scriptversion (GNU Automake)"
+    exit $?
+    ;;
+
+  -*)
+    echo 1>&2 "$0: unknown '$1' option"
+    echo 1>&2 "Try '$0 --help' for more information"
+    exit 1
+    ;;
+
+esac
+
+# Run the given program, remember its exit status.
+"$@"; st=$?
+
+# If it succeeded, we are done.
+test $st -eq 0 && exit 0
+
+# Also exit now if we it failed (or wasn't found), and '--version' was
+# passed; such an option is passed most likely to detect whether the
+# program is present and works.
+case $2 in --version|--help) exit $st;; esac
+
+# Exit code 63 means version mismatch.  This often happens when the user
+# tries to use an ancient version of a tool on a file that requires a
+# minimum version.
+if test $st -eq 63; then
+  msg="probably too old"
+elif test $st -eq 127; then
+  # Program was missing.
+  msg="missing on your system"
+else
+  # Program was found and executed, but failed.  Give up.
+  exit $st
+fi
+
+perl_URL=https://www.perl.org/
+flex_URL=https://github.com/westes/flex
+gnu_software_URL=https://www.gnu.org/software
+
+program_details ()
+{
+  case $1 in
+    aclocal|automake)
+      echo "The '$1' program is part of the GNU Automake package:"
+      echo "<$gnu_software_URL/automake>"
+      echo "It also requires GNU Autoconf, GNU m4 and Perl in order to run:"
+      echo "<$gnu_software_URL/autoconf>"
+      echo "<$gnu_software_URL/m4/>"
+      echo "<$perl_URL>"
+      ;;
+    autoconf|autom4te|autoheader)
+      echo "The '$1' program is part of the GNU Autoconf package:"
+      echo "<$gnu_software_URL/autoconf/>"
+      echo "It also requires GNU m4 and Perl in order to run:"
+      echo "<$gnu_software_URL/m4/>"
+      echo "<$perl_URL>"
+      ;;
+  esac
+}
+
+give_advice ()
+{
+  # Normalize program name to check for.
+  normalized_program=`echo "$1" | sed '
+    s/^gnu-//; t
+    s/^gnu//; t
+    s/^g//; t'`
+
+  printf '%s\n' "'$1' is $msg."
+
+  configure_deps="'configure.ac' or m4 files included by 'configure.ac'"
+  case $normalized_program in
+    autoconf*)
+      echo "You should only need it if you modified 'configure.ac',"
+      echo "or m4 files included by it."
+      program_details 'autoconf'
+      ;;
+    autoheader*)
+      echo "You should only need it if you modified 'acconfig.h' or"
+      echo "$configure_deps."
+      program_details 'autoheader'
+      ;;
+    automake*)
+      echo "You should only need it if you modified 'Makefile.am' or"
+      echo "$configure_deps."
+      program_details 'automake'
+      ;;
+    aclocal*)
+      echo "You should only need it if you modified 'acinclude.m4' or"
+      echo "$configure_deps."
+      program_details 'aclocal'
+      ;;
+   autom4te*)
+      echo "You might have modified some maintainer files that require"
+      echo "the 'autom4te' program to be rebuilt."
+      program_details 'autom4te'
+      ;;
+    bison*|yacc*)
+      echo "You should only need it if you modified a '.y' file."
+      echo "You may want to install the GNU Bison package:"
+      echo "<$gnu_software_URL/bison/>"
+      ;;
+    lex*|flex*)
+      echo "You should only need it if you modified a '.l' file."
+      echo "You may want to install the Fast Lexical Analyzer package:"
+      echo "<$flex_URL>"
+      ;;
+    help2man*)
+      echo "You should only need it if you modified a dependency" \
+           "of a man page."
+      echo "You may want to install the GNU Help2man package:"
+      echo "<$gnu_software_URL/help2man/>"
+    ;;
+    makeinfo*)
+      echo "You should only need it if you modified a '.texi' file, or"
+      echo "any other file indirectly affecting the aspect of the manual."
+      echo "You might want to install the Texinfo package:"
+      echo "<$gnu_software_URL/texinfo/>"
+      echo "The spurious makeinfo call might also be the consequence of"
+      echo "using a buggy 'make' (AIX, DU, IRIX), in which case you might"
+      echo "want to install GNU make:"
+      echo "<$gnu_software_URL/make/>"
+      ;;
+    *)
+      echo "You might have modified some files without having the proper"
+      echo "tools for further handling them.  Check the 'README' file, it"
+      echo "often tells you about the needed prerequisites for installing"
+      echo "this package.  You may also peek at any GNU archive site, in"
+      echo "case some other package contains this missing '$1' program."
+      ;;
+  esac
+}
+
+give_advice "$1" | sed -e '1s/^/WARNING: /' \
+                       -e '2,$s/^/         /' >&2
+
+# Propagate the correct exit status (expected to be 127 for a program
+# not found, 63 for a program that failed due to version mismatch).
+exit $st
+
+# Local variables:
+# eval: (add-hook 'before-save-hook 'time-stamp)
+# time-stamp-start: "scriptversion="
+# time-stamp-format: "%:y-%02m-%02d.%02H"
+# time-stamp-time-zone: "UTC0"
+# time-stamp-end: "; # UTC"
+# End:
diff --git a/sample/Makefile.in b/sample/Makefile.in
new file mode 100644
index 0000000..779f27e
--- /dev/null
+++ b/sample/Makefile.in
@@ -0,0 +1,595 @@
+# Makefile.in generated by automake 1.16.1 from Makefile.am.
+# @configure_input@
+
+# Copyright (C) 1994-2018 Free Software Foundation, Inc.
+
+# This Makefile.in is free software; the Free Software Foundation
+# gives unlimited permission to copy and/or distribute it,
+# with or without modifications, as long as this notice is preserved.
+
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY, to the extent permitted by law; without
+# even the implied warranty of MERCHANTABILITY or FITNESS FOR A
+# PARTICULAR PURPOSE.
+
+@SET_MAKE@
+
+#
+#  OpenVPN -- An application to securely tunnel IP networks
+#             over a single UDP port, with support for SSL/TLS-based
+#             session authentication and key exchange,
+#             packet encryption, packet authentication, and
+#             packet compression.
+#
+#  Copyright (C) 2002-2018 OpenVPN Inc <sales@openvpn.net>
+#  Copyright (C) 2006-2012 Alon Bar-Lev <alon.barlev@gmail.com>
+#
+
+VPATH = @srcdir@
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+
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+	sample-plugins \
+	sample-config-files \
+	sample-windows \
+	sample-keys \
+	sample-scripts
+
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+@WIN32_TRUE@	client.ovpn \
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diff --git a/src/compat/Makefile.in b/src/compat/Makefile.in
new file mode 100644
index 0000000..d99a9bf
--- /dev/null
+++ b/src/compat/Makefile.in
@@ -0,0 +1,723 @@
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+#             packet compression.
+#
+#  Copyright (C) 2002-2018 OpenVPN Inc <sales@openvpn.net>
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+	-I$(top_srcdir)/src/compat
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+	$(OPTIONAL_LZO_CFLAGS) $(OPTIONAL_LZ4_CFLAGS) \
+	$(OPTIONAL_PKCS11_HELPER_CFLAGS) $(OPTIONAL_INOTIFY_CFLAGS) \
+	-DPLUGIN_LIBDIR=\"${plugindir}\" $(am__append_1)
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+	base64.h basic.h buffer.c buffer.h circ_list.h clinat.c \
+	clinat.h common.h comp.c comp.h compstub.c comp-lz4.c \
+	comp-lz4.h crypto.c crypto.h crypto_backend.h crypto_openssl.c \
+	crypto_openssl.h crypto_mbedtls.c crypto_mbedtls.h dhcp.c \
+	dhcp.h env_set.c env_set.h errlevel.h error.c error.h event.c \
+	event.h fdmisc.c fdmisc.h forward.c forward.h fragment.c \
+	fragment.h gremlin.c gremlin.h helper.c helper.h httpdigest.c \
+	httpdigest.h lladdr.c lladdr.h init.c init.h integer.h \
+	interval.c interval.h list.c list.h lzo.c lzo.h manage.c \
+	manage.h mbuf.c mbuf.h memdbg.h misc.c misc.h platform.c \
+	platform.h console.c console.h console_builtin.c \
+	console_systemd.c mroute.c mroute.h mss.c mss.h mstats.c \
+	mstats.h mtcp.c mtcp.h mtu.c mtu.h mudp.c mudp.h multi.c \
+	multi.h networking_iproute2.c networking_iproute2.h \
+	networking_sitnl.c networking_sitnl.h networking.h ntlm.c \
+	ntlm.h occ.c occ.h openssl_compat.h pkcs11.c pkcs11.h \
+	pkcs11_backend.h pkcs11_openssl.c pkcs11_mbedtls.c openvpn.c \
+	openvpn.h options.c options.h otime.c otime.h packet_id.c \
+	packet_id.h perf.c perf.h pf.c pf.h ping.c ping.h plugin.c \
+	plugin.h pool.c pool.h proto.c proto.h proxy.c proxy.h ps.c \
+	ps.h push.c push.h pushlist.h reliable.c reliable.h route.c \
+	route.h run_command.c run_command.h schedule.c schedule.h \
+	session_id.c session_id.h shaper.c shaper.h sig.c sig.h \
+	socket.c socket.h socks.c socks.h ssl.c ssl.h ssl_backend.h \
+	ssl_openssl.c ssl_openssl.h ssl_mbedtls.c ssl_mbedtls.h \
+	ssl_ncp.c ssl_ncp.h ssl_common.h ssl_verify.c ssl_verify.h \
+	ssl_verify_backend.h ssl_verify_openssl.c ssl_verify_openssl.h \
+	ssl_verify_mbedtls.c ssl_verify_mbedtls.h status.c status.h \
+	syshead.h tls_crypt.c tls_crypt.h tun.c tun.h vlan.c vlan.h \
+	win32.h win32.c cryptoapi.h cryptoapi.c $(am__append_2)
+openvpn_LDADD = $(top_builddir)/src/compat/libcompat.la \
+	$(SOCKETS_LIBS) $(OPTIONAL_LZO_LIBS) $(OPTIONAL_LZ4_LIBS) \
+	$(OPTIONAL_PKCS11_HELPER_LIBS) $(OPTIONAL_CRYPTO_LIBS) \
+	$(OPTIONAL_SELINUX_LIBS) $(OPTIONAL_SYSTEMD_LIBS) \
+	$(OPTIONAL_DL_LIBS) $(OPTIONAL_INOTIFY_LIBS) $(am__append_3)
+all: all-am
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+	    *$$dep*) \
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+	        && { if test -f $@; then exit 0; else break; fi; }; \
+	      exit 1;; \
+	  esac; \
+	done; \
+	echo ' cd $(top_srcdir) && $(AUTOMAKE) --foreign src/openvpn/Makefile'; \
+	$(am__cd) $(top_srcdir) && \
+	  $(AUTOMAKE) --foreign src/openvpn/Makefile
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+	    if test -d "$(distdir)/$$file"; then \
+	      find "$(distdir)/$$file" -type d ! -perm -700 -exec chmod u+rwx {} \;; \
+	    fi; \
+	    if test -d $(srcdir)/$$file && test $$d != $(srcdir); then \
+	      cp -fpR $(srcdir)/$$file "$(distdir)$$dir" || exit 1; \
+	      find "$(distdir)/$$file" -type d ! -perm -700 -exec chmod u+rwx {} \;; \
+	    fi; \
+	    cp -fpR $$d/$$file "$(distdir)$$dir" || exit 1; \
+	  else \
+	    test -f "$(distdir)/$$file" \
+	    || cp -p $$d/$$file "$(distdir)/$$file" \
+	    || exit 1; \
+	  fi; \
+	done
+check-am: all-am
+check: check-am
+all-am: Makefile $(PROGRAMS)
+installdirs:
+	for dir in "$(DESTDIR)$(sbindir)"; do \
+	  test -z "$$dir" || $(MKDIR_P) "$$dir"; \
+	done
+install: install-am
+install-exec: install-exec-am
+install-data: install-data-am
+uninstall: uninstall-am
+
+install-am: all-am
+	@$(MAKE) $(AM_MAKEFLAGS) install-exec-am install-data-am
+
+installcheck: installcheck-am
+install-strip:
+	if test -z '$(STRIP)'; then \
+	  $(MAKE) $(AM_MAKEFLAGS) INSTALL_PROGRAM="$(INSTALL_STRIP_PROGRAM)" \
+	    install_sh_PROGRAM="$(INSTALL_STRIP_PROGRAM)" INSTALL_STRIP_FLAG=-s \
+	      install; \
+	else \
+	  $(MAKE) $(AM_MAKEFLAGS) INSTALL_PROGRAM="$(INSTALL_STRIP_PROGRAM)" \
+	    install_sh_PROGRAM="$(INSTALL_STRIP_PROGRAM)" INSTALL_STRIP_FLAG=-s \
+	    "INSTALL_PROGRAM_ENV=STRIPPROG='$(STRIP)'" install; \
+	fi
+mostlyclean-generic:
+
+clean-generic:
+
+distclean-generic:
+	-test -z "$(CONFIG_CLEAN_FILES)" || rm -f $(CONFIG_CLEAN_FILES)
+	-test . = "$(srcdir)" || test -z "$(CONFIG_CLEAN_VPATH_FILES)" || rm -f $(CONFIG_CLEAN_VPATH_FILES)
+
+maintainer-clean-generic:
+	@echo "This command is intended for maintainers to use"
+	@echo "it deletes files that may require special tools to rebuild."
+	-test -z "$(MAINTAINERCLEANFILES)" || rm -f $(MAINTAINERCLEANFILES)
+clean: clean-am
+
+clean-am: clean-generic clean-libtool clean-sbinPROGRAMS \
+	mostlyclean-am
+
+distclean: distclean-am
+		-rm -f ./$(DEPDIR)/argv.Po
+	-rm -f ./$(DEPDIR)/auth_token.Po
+	-rm -f ./$(DEPDIR)/base64.Po
+	-rm -f ./$(DEPDIR)/block_dns.Po
+	-rm -f ./$(DEPDIR)/buffer.Po
+	-rm -f ./$(DEPDIR)/clinat.Po
+	-rm -f ./$(DEPDIR)/comp-lz4.Po
+	-rm -f ./$(DEPDIR)/comp.Po
+	-rm -f ./$(DEPDIR)/compstub.Po
+	-rm -f ./$(DEPDIR)/console.Po
+	-rm -f ./$(DEPDIR)/console_builtin.Po
+	-rm -f ./$(DEPDIR)/console_systemd.Po
+	-rm -f ./$(DEPDIR)/crypto.Po
+	-rm -f ./$(DEPDIR)/crypto_mbedtls.Po
+	-rm -f ./$(DEPDIR)/crypto_openssl.Po
+	-rm -f ./$(DEPDIR)/cryptoapi.Po
+	-rm -f ./$(DEPDIR)/dhcp.Po
+	-rm -f ./$(DEPDIR)/env_set.Po
+	-rm -f ./$(DEPDIR)/error.Po
+	-rm -f ./$(DEPDIR)/event.Po
+	-rm -f ./$(DEPDIR)/fdmisc.Po
+	-rm -f ./$(DEPDIR)/forward.Po
+	-rm -f ./$(DEPDIR)/fragment.Po
+	-rm -f ./$(DEPDIR)/gremlin.Po
+	-rm -f ./$(DEPDIR)/helper.Po
+	-rm -f ./$(DEPDIR)/httpdigest.Po
+	-rm -f ./$(DEPDIR)/init.Po
+	-rm -f ./$(DEPDIR)/interval.Po
+	-rm -f ./$(DEPDIR)/list.Po
+	-rm -f ./$(DEPDIR)/lladdr.Po
+	-rm -f ./$(DEPDIR)/lzo.Po
+	-rm -f ./$(DEPDIR)/manage.Po
+	-rm -f ./$(DEPDIR)/mbuf.Po
+	-rm -f ./$(DEPDIR)/misc.Po
+	-rm -f ./$(DEPDIR)/mroute.Po
+	-rm -f ./$(DEPDIR)/mss.Po
+	-rm -f ./$(DEPDIR)/mstats.Po
+	-rm -f ./$(DEPDIR)/mtcp.Po
+	-rm -f ./$(DEPDIR)/mtu.Po
+	-rm -f ./$(DEPDIR)/mudp.Po
+	-rm -f ./$(DEPDIR)/multi.Po
+	-rm -f ./$(DEPDIR)/networking_iproute2.Po
+	-rm -f ./$(DEPDIR)/networking_sitnl.Po
+	-rm -f ./$(DEPDIR)/ntlm.Po
+	-rm -f ./$(DEPDIR)/occ.Po
+	-rm -f ./$(DEPDIR)/openvpn.Po
+	-rm -f ./$(DEPDIR)/options.Po
+	-rm -f ./$(DEPDIR)/otime.Po
+	-rm -f ./$(DEPDIR)/packet_id.Po
+	-rm -f ./$(DEPDIR)/perf.Po
+	-rm -f ./$(DEPDIR)/pf.Po
+	-rm -f ./$(DEPDIR)/ping.Po
+	-rm -f ./$(DEPDIR)/pkcs11.Po
+	-rm -f ./$(DEPDIR)/pkcs11_mbedtls.Po
+	-rm -f ./$(DEPDIR)/pkcs11_openssl.Po
+	-rm -f ./$(DEPDIR)/platform.Po
+	-rm -f ./$(DEPDIR)/plugin.Po
+	-rm -f ./$(DEPDIR)/pool.Po
+	-rm -f ./$(DEPDIR)/proto.Po
+	-rm -f ./$(DEPDIR)/proxy.Po
+	-rm -f ./$(DEPDIR)/ps.Po
+	-rm -f ./$(DEPDIR)/push.Po
+	-rm -f ./$(DEPDIR)/reliable.Po
+	-rm -f ./$(DEPDIR)/route.Po
+	-rm -f ./$(DEPDIR)/run_command.Po
+	-rm -f ./$(DEPDIR)/schedule.Po
+	-rm -f ./$(DEPDIR)/session_id.Po
+	-rm -f ./$(DEPDIR)/shaper.Po
+	-rm -f ./$(DEPDIR)/sig.Po
+	-rm -f ./$(DEPDIR)/socket.Po
+	-rm -f ./$(DEPDIR)/socks.Po
+	-rm -f ./$(DEPDIR)/ssl.Po
+	-rm -f ./$(DEPDIR)/ssl_mbedtls.Po
+	-rm -f ./$(DEPDIR)/ssl_ncp.Po
+	-rm -f ./$(DEPDIR)/ssl_openssl.Po
+	-rm -f ./$(DEPDIR)/ssl_verify.Po
+	-rm -f ./$(DEPDIR)/ssl_verify_mbedtls.Po
+	-rm -f ./$(DEPDIR)/ssl_verify_openssl.Po
+	-rm -f ./$(DEPDIR)/status.Po
+	-rm -f ./$(DEPDIR)/tls_crypt.Po
+	-rm -f ./$(DEPDIR)/tun.Po
+	-rm -f ./$(DEPDIR)/vlan.Po
+	-rm -f ./$(DEPDIR)/win32.Po
+	-rm -f Makefile
+distclean-am: clean-am distclean-compile distclean-generic \
+	distclean-tags
+
+dvi: dvi-am
+
+dvi-am:
+
+html: html-am
+
+html-am:
+
+info: info-am
+
+info-am:
+
+install-data-am:
+
+install-dvi: install-dvi-am
+
+install-dvi-am:
+
+install-exec-am: install-sbinPROGRAMS
+
+install-html: install-html-am
+
+install-html-am:
+
+install-info: install-info-am
+
+install-info-am:
+
+install-man:
+
+install-pdf: install-pdf-am
+
+install-pdf-am:
+
+install-ps: install-ps-am
+
+install-ps-am:
+
+installcheck-am:
+
+maintainer-clean: maintainer-clean-am
+		-rm -f ./$(DEPDIR)/argv.Po
+	-rm -f ./$(DEPDIR)/auth_token.Po
+	-rm -f ./$(DEPDIR)/base64.Po
+	-rm -f ./$(DEPDIR)/block_dns.Po
+	-rm -f ./$(DEPDIR)/buffer.Po
+	-rm -f ./$(DEPDIR)/clinat.Po
+	-rm -f ./$(DEPDIR)/comp-lz4.Po
+	-rm -f ./$(DEPDIR)/comp.Po
+	-rm -f ./$(DEPDIR)/compstub.Po
+	-rm -f ./$(DEPDIR)/console.Po
+	-rm -f ./$(DEPDIR)/console_builtin.Po
+	-rm -f ./$(DEPDIR)/console_systemd.Po
+	-rm -f ./$(DEPDIR)/crypto.Po
+	-rm -f ./$(DEPDIR)/crypto_mbedtls.Po
+	-rm -f ./$(DEPDIR)/crypto_openssl.Po
+	-rm -f ./$(DEPDIR)/cryptoapi.Po
+	-rm -f ./$(DEPDIR)/dhcp.Po
+	-rm -f ./$(DEPDIR)/env_set.Po
+	-rm -f ./$(DEPDIR)/error.Po
+	-rm -f ./$(DEPDIR)/event.Po
+	-rm -f ./$(DEPDIR)/fdmisc.Po
+	-rm -f ./$(DEPDIR)/forward.Po
+	-rm -f ./$(DEPDIR)/fragment.Po
+	-rm -f ./$(DEPDIR)/gremlin.Po
+	-rm -f ./$(DEPDIR)/helper.Po
+	-rm -f ./$(DEPDIR)/httpdigest.Po
+	-rm -f ./$(DEPDIR)/init.Po
+	-rm -f ./$(DEPDIR)/interval.Po
+	-rm -f ./$(DEPDIR)/list.Po
+	-rm -f ./$(DEPDIR)/lladdr.Po
+	-rm -f ./$(DEPDIR)/lzo.Po
+	-rm -f ./$(DEPDIR)/manage.Po
+	-rm -f ./$(DEPDIR)/mbuf.Po
+	-rm -f ./$(DEPDIR)/misc.Po
+	-rm -f ./$(DEPDIR)/mroute.Po
+	-rm -f ./$(DEPDIR)/mss.Po
+	-rm -f ./$(DEPDIR)/mstats.Po
+	-rm -f ./$(DEPDIR)/mtcp.Po
+	-rm -f ./$(DEPDIR)/mtu.Po
+	-rm -f ./$(DEPDIR)/mudp.Po
+	-rm -f ./$(DEPDIR)/multi.Po
+	-rm -f ./$(DEPDIR)/networking_iproute2.Po
+	-rm -f ./$(DEPDIR)/networking_sitnl.Po
+	-rm -f ./$(DEPDIR)/ntlm.Po
+	-rm -f ./$(DEPDIR)/occ.Po
+	-rm -f ./$(DEPDIR)/openvpn.Po
+	-rm -f ./$(DEPDIR)/options.Po
+	-rm -f ./$(DEPDIR)/otime.Po
+	-rm -f ./$(DEPDIR)/packet_id.Po
+	-rm -f ./$(DEPDIR)/perf.Po
+	-rm -f ./$(DEPDIR)/pf.Po
+	-rm -f ./$(DEPDIR)/ping.Po
+	-rm -f ./$(DEPDIR)/pkcs11.Po
+	-rm -f ./$(DEPDIR)/pkcs11_mbedtls.Po
+	-rm -f ./$(DEPDIR)/pkcs11_openssl.Po
+	-rm -f ./$(DEPDIR)/platform.Po
+	-rm -f ./$(DEPDIR)/plugin.Po
+	-rm -f ./$(DEPDIR)/pool.Po
+	-rm -f ./$(DEPDIR)/proto.Po
+	-rm -f ./$(DEPDIR)/proxy.Po
+	-rm -f ./$(DEPDIR)/ps.Po
+	-rm -f ./$(DEPDIR)/push.Po
+	-rm -f ./$(DEPDIR)/reliable.Po
+	-rm -f ./$(DEPDIR)/route.Po
+	-rm -f ./$(DEPDIR)/run_command.Po
+	-rm -f ./$(DEPDIR)/schedule.Po
+	-rm -f ./$(DEPDIR)/session_id.Po
+	-rm -f ./$(DEPDIR)/shaper.Po
+	-rm -f ./$(DEPDIR)/sig.Po
+	-rm -f ./$(DEPDIR)/socket.Po
+	-rm -f ./$(DEPDIR)/socks.Po
+	-rm -f ./$(DEPDIR)/ssl.Po
+	-rm -f ./$(DEPDIR)/ssl_mbedtls.Po
+	-rm -f ./$(DEPDIR)/ssl_ncp.Po
+	-rm -f ./$(DEPDIR)/ssl_openssl.Po
+	-rm -f ./$(DEPDIR)/ssl_verify.Po
+	-rm -f ./$(DEPDIR)/ssl_verify_mbedtls.Po
+	-rm -f ./$(DEPDIR)/ssl_verify_openssl.Po
+	-rm -f ./$(DEPDIR)/status.Po
+	-rm -f ./$(DEPDIR)/tls_crypt.Po
+	-rm -f ./$(DEPDIR)/tun.Po
+	-rm -f ./$(DEPDIR)/vlan.Po
+	-rm -f ./$(DEPDIR)/win32.Po
+	-rm -f Makefile
+maintainer-clean-am: distclean-am maintainer-clean-generic
+
+mostlyclean: mostlyclean-am
+
+mostlyclean-am: mostlyclean-compile mostlyclean-generic \
+	mostlyclean-libtool
+
+pdf: pdf-am
+
+pdf-am:
+
+ps: ps-am
+
+ps-am:
+
+uninstall-am: uninstall-sbinPROGRAMS
+
+.MAKE: install-am install-strip
+
+.PHONY: CTAGS GTAGS TAGS all all-am am--depfiles check check-am clean \
+	clean-generic clean-libtool clean-sbinPROGRAMS cscopelist-am \
+	ctags ctags-am distclean distclean-compile distclean-generic \
+	distclean-libtool distclean-tags distdir dvi dvi-am html \
+	html-am info info-am install install-am install-data \
+	install-data-am install-dvi install-dvi-am install-exec \
+	install-exec-am install-html install-html-am install-info \
+	install-info-am install-man install-pdf install-pdf-am \
+	install-ps install-ps-am install-sbinPROGRAMS install-strip \
+	installcheck installcheck-am installdirs maintainer-clean \
+	maintainer-clean-generic mostlyclean mostlyclean-compile \
+	mostlyclean-generic mostlyclean-libtool pdf pdf-am ps ps-am \
+	tags tags-am uninstall uninstall-am uninstall-sbinPROGRAMS
+
+.PRECIOUS: Makefile
+
+
+.rc.lo:
+	$(LTRCCOMPILE) -i "$<" -o "$@"
+
+.rc.o:
+	$(RCCOMPILE) -i "$<" -o "$@"
+
+.mc.rc:
+	$(WINDMC) "$<"
+
+# Tell versions [3.59,3.63) of GNU make to not export all variables.
+# Otherwise a system limit (for SysV at least) may be exceeded.
+.NOEXPORT:
diff --git a/src/openvpn/init.c b/src/openvpn/init.c
index dfa045b..a785934 100644
--- a/src/openvpn/init.c
+++ b/src/openvpn/init.c
@@ -312,7 +312,7 @@ management_callback_send_cc_message(void *arg,
                                     const char *parameters)
 {
     struct context *c = (struct context *) arg;
-    size_t len = strlen(command) + 1 + sizeof(parameters) + 1;
+    size_t len = strlen(command) + 1 + strlen(parameters) + 1;
     if (len > PUSH_BUNDLE_SIZE)
     {
         return false;
diff --git a/src/openvpn/route.c b/src/openvpn/route.c
index 24563ed..f127a90 100644
--- a/src/openvpn/route.c
+++ b/src/openvpn/route.c
@@ -3429,7 +3429,7 @@ struct rtmsg {
 #if defined(TARGET_SOLARIS)
 #define NEXTADDR(w, u) \
     if (rtm_addrs & (w)) { \
-        l = ROUNDUP(sizeof(u)); memmove(cp, &(u), l); cp += l; \
+        l = sizeof(u); memmove(cp, &(u), l); cp += ROUNDUP(l); \
     }
 
 #define ADVANCE(x, n) (x += ROUNDUP(sizeof(struct sockaddr_in)))
diff --git a/src/openvpn/sitnl.h b/src/openvpn/sitnl.h
deleted file mode 100644
index 937522f..0000000
--- a/src/openvpn/sitnl.h
+++ /dev/null
@@ -1,217 +0,0 @@
-/*
- *  Simplified Interface To NetLink
- *
- *  Copyright (C) 2016-2018 Antonio Quartulli <a@unstable.cc>
- *
- *  This program is free software; you can redistribute it and/or modify
- *  it under the terms of the GNU General Public License version 2
- *  as published by the Free Software Foundation.
- *
- *  This program is distributed in the hope that it will be useful,
- *  but WITHOUT ANY WARRANTY; without even the implied warranty of
- *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- *  GNU General Public License for more details.
- *
- *  You should have received a copy of the GNU General Public License
- *  along with this program (see the file COPYING included with this
- *  distribution); if not, write to the Free Software Foundation, Inc.,
- *  59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
- */
-
-#ifndef SITNL_H_
-#define SITNL_H_
-
-#ifdef TARGET_LINUX
-
-#include <stdbool.h>
-#include <netinet/in.h>
-
-/**
- * Bring interface up or down.
- *
- * @param iface     the interface to modify
- * @param up        true if the interface has to be brought up, false otherwise
- *
- * @return          0 on success, a negative error code otherwise
- */
-int sitnl_iface_up(const char *iface, bool up);
-
-/**
- * Set the MTU for an interface
- *
- * @param iface     the interface to modify
- * @param mtru      the new MTU
- *
- * @return          0 on success, a negative error code otherwise
- */
-int sitnl_iface_mtu_set(const char *iface, uint32_t mtu);
-
-/**
- * Add an IPv4 address to an interface
- *
- * @param iface     the interface where the address has to be added
- * @param addr      the address to add
- * @param prefixlen the prefix length of the network associated with the address
- * @param broadcast the broadcast address to configure on the interface
- *
- * @return          0 on success, a negative error code otherwise
- */
-int sitnl_addr_v4_add(const char *iface, const in_addr_t *addr, int prefixlen,
-                      const in_addr_t *broadcast);
-
-/**
- * Add an IPv6 address to an interface
- *
- * @param iface     the interface where the address has to be added
- * @param addr      the address to add
- * @param prefixlen the prefix length of the network associated with the address
- *
- * @return          0 on success, a negative error code otherwise
- */
-
-int sitnl_addr_v6_add(const char *iface, const struct in6_addr *addr,
-                      int prefixlen);
-
-/**
- * Remove an IPv4 from an interface
- *
- * @param iface     the interface to remove the address from
- * @param prefixlen the prefix length of the network associated with the address
- *
- * @return          0 on success, a negative error code otherwise
- */
-int sitnl_addr_v4_del(const char *iface, const in_addr_t *addr, int prefixlen);
-
-/**
- * Remove an IPv6 from an interface
- *
- * @param iface     the interface to remove the address from
- * @param prefixlen the prefix length of the network associated with the address
- *
- * @return          0 on success, a negative error code otherwise
- */
-int sitnl_addr_v6_del(const char *iface, const struct in6_addr *addr,
-                      int prefixlen);
-
-/**
- * Add a point-to-point IPv4 address to an interface
- *
- * @param iface     the interface where the address has to be added
- * @param local     the address to add
- * @param remote    the associated p-t-p remote address
- *
- * @return          0 on success, a negative error code otherwise
- */
-int sitnl_addr_ptp_v4_add(const char *iface, const in_addr_t *local,
-                          const in_addr_t *remote);
-
-/**
- * Remove a point-to-point IPv4 address from an interface
- *
- * @param iface     the interface to remove the address from
- * @param local     the address to remove
- *
- * @return          0 on success, a negative error code otherwise
- */
-int sitnl_addr_ptp_v4_del(const char *iface, const in_addr_t *local);
-
-
-/**
- * Add a route for an IPv4 address/network
- *
- * @param dst       the destination of the route
- * @param prefixlen the length of the prefix of the destination
- * @param gw        the gateway for this route
- * @param iface     the interface for this route (can be NULL)
- * @param table     the table to add this route to (if 0, will be added to the
- *                  main table)
- * @param metric    the metric associated with the route
- *
- * @return          0 on success, a negative error code otherwise
- */
-int sitnl_route_v4_add(const in_addr_t *dst, int prefixlen,
-                       const in_addr_t *gw, const char *iface, uint32_t table,
-                       int metric);
-
-/**
- * Add a route for an IPv6 address/network
- *
- * @param dst       the destination of the route
- * @param prefixlen the length of the prefix of the destination
- * @param gw        the gateway for this route
- * @param iface     the interface for this route (can be NULL)
- * @param table     the table to add this route to (if 0, will be added to the
- *                  main table)
- * @param metric    the metric associated with the route
- *
- * @return          0 on success, a negative error code otherwise
- */
-int sitnl_route_v6_add(const struct in6_addr *dst, int prefixlen,
-                       const struct in6_addr *gw, const char *iface,
-                       uint32_t table, int metric);
-
-/**
- * Delete a route for an IPv4 address/network
- *
- * @param dst       the destination of the route
- * @param prefixlen the length of the prefix of the destination
- * @param gw        the gateway for this route
- * @param iface     the interface for this route (can be NULL)
- * @param table     the table to add this route to (if 0, will be added to the
- *                  main table)
- * @param metric    the metric associated with the route
- *
- * @return          0 on success, a negative error code otherwise
- */
-int sitnl_route_v4_del(const in_addr_t *dst, int prefixlen,
-                       const in_addr_t *gw, const char *iface, uint32_t table,
-                       int metric);
-
-/**
- * Delete a route for an IPv4 address/network
- *
- * @param dst       the destination of the route
- * @param prefixlen the length of the prefix of the destination
- * @param gw        the gateway for this route
- * @param iface     the interface for this route (can be NULL)
- * @param table     the table to add this route to (if 0, will be added to the
- *                  main table)
- * @param metric    the metric associated with the route
- *
- * @return          0 on success, a negative error code otherwise
- */
-int sitnl_route_v6_del(const struct in6_addr *dst, int prefixlen,
-                       const struct in6_addr *gw, const char *iface,
-                       uint32_t table, int metric);
-
-/**
- * Retrieve the gateway and outgoing interface for the specified IPv4
- * address/network
- *
- * @param dst           The destination to lookup
- * @param prefixlen     The length of the prefix of the destination
- * @param best_gw       Location where the retrieved GW has to be stored
- * @param best_iface    Location where the retrieved interface has to be stored
- *
- * @return              0 on success, a negative error code otherwise
- */
-int sitnl_route_v4_best_gw(const in_addr_t *dst, int prefixlen,
-                           in_addr_t *best_gw, char *best_iface);
-
-/**
- * Retrieve the gateway and outgoing interface for the specified IPv6
- * address/network
- *
- * @param dst           The destination to lookup
- * @param prefixlen     The length of the prefix of the destination
- * @param best_gw       Location where the retrieved GW has to be stored
- * @param best_iface    Location where the retrieved interface has to be stored
- *
- * @return              0 on success, a negative error code otherwise
- */
-int sitnl_route_v6_best_gw(const struct in6_addr *dst, int prefixlen,
-                           struct in6_addr *best_gw, char *best_iface);
-
-#endif /* TARGET_LINUX */
-
-#endif /* SITNL_H_ */
diff --git a/src/openvpn/ssl_ncp.c b/src/openvpn/ssl_ncp.c
index f522b8f..5549639 100644
--- a/src/openvpn/ssl_ncp.c
+++ b/src/openvpn/ssl_ncp.c
@@ -269,14 +269,11 @@ static bool
 tls_poor_mans_ncp(struct options *o, const char *remote_ciphername)
 {
     if (remote_ciphername
-        && 0 != strcmp(o->ciphername, remote_ciphername))
+        && tls_item_in_cipher_list(remote_ciphername, o->ncp_ciphers))
     {
-        if (tls_item_in_cipher_list(remote_ciphername, o->ncp_ciphers))
-        {
-            o->ciphername = string_alloc(remote_ciphername, &o->gc);
-            msg(D_TLS_DEBUG_LOW, "Using peer cipher '%s'", o->ciphername);
-            return true;
-        }
+        o->ciphername = string_alloc(remote_ciphername, &o->gc);
+        msg(D_TLS_DEBUG_LOW, "Using peer cipher '%s'", o->ciphername);
+        return true;
     }
     return false;
 }
@@ -296,13 +293,14 @@ check_pull_client_ncp(struct context *c, const int found)
     }
     /* If the server did not push a --cipher, we will switch to the
      * remote cipher if it is in our ncp-ciphers list */
-    bool useremotecipher = tls_poor_mans_ncp(&c->options,
-                                             c->c2.tls_multi->remote_ciphername);
-
+    if(tls_poor_mans_ncp(&c->options, c->c2.tls_multi->remote_ciphername))
+    {
+        return true;
+    }
 
     /* We could not figure out the peer's cipher but we have fallback
      * enabled */
-    if (!useremotecipher && c->options.enable_ncp_fallback)
+    if (!c->c2.tls_multi->remote_ciphername && c->options.enable_ncp_fallback)
     {
         return true;
     }
diff --git a/src/openvpn/tun.c b/src/openvpn/tun.c
index 3045445..923131a 100644
--- a/src/openvpn/tun.c
+++ b/src/openvpn/tun.c
@@ -1038,6 +1038,29 @@ do_ifconfig_ipv6(struct tuntap *tt, const char *ifname, int tun_mtu,
     openvpn_execve_check(&argv, es, S_FATAL,
                          "generic BSD ifconfig inet6 failed");
 
+#if defined(TARGET_FREEBSD) && __FreeBSD_version >= 1200000
+    /* On FreeBSD 12 and up, there is ipv6_activate_all_interfaces="YES"
+     * in rc.conf, which is not set by default.  If it is *not* set,
+     * "all new interfaces that are not already up" are configured by
+     * devd + /etc/pccard_ether as "inet6 ifdisabled".
+     *
+     * The "is this interface already up?" test is a non-zero time window
+     * which we manage to hit with our ifconfig often enough to cause
+     * frequent fails in the openvpn test environment.
+     *
+     * Thus: assume that the system might interfere, wait for things to
+     * settle (it's a very short time window), and remove -ifdisable again.
+     *
+     * See: https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=248172
+     */
+    sleep(1);
+    argv_printf(&argv, "%s %s inet6 -ifdisabled", IFCONFIG_PATH, ifname);
+    argv_msg(M_INFO, &argv);
+
+    openvpn_execve_check(&argv, es, S_FATAL,
+                         "FreeBSD BSD 'ifconfig inet6 -ifdisabled' failed");
+#endif
+
 #if defined(TARGET_OPENBSD) || defined(TARGET_NETBSD) \
     || defined(TARGET_DARWIN)
     /* and, hooray, we explicitly need to add a route... */
@@ -6158,12 +6181,32 @@ wintun_register_ring_buffer(struct tuntap *tt, const char *device_guid)
     }
     else
     {
-        msg(M_FATAL, "ERROR:  Wintun requires SYSTEM privileges and therefore "
-                     "should be used with interactive service. If you want to "
-                     "use openvpn from command line, you need to do SYSTEM "
-                     "elevation yourself (for example with psexec).");
-    }
+        if (!register_ring_buffers(tt->hand,
+                                   tt->wintun_send_ring,
+                                   tt->wintun_receive_ring,
+                                   tt->rw_handle.read,
+                                   tt->rw_handle.write))
+        {
+            switch (GetLastError())
+            {
+                case ERROR_ACCESS_DENIED:
+                    msg(M_FATAL, "ERROR:  Wintun requires SYSTEM privileges and therefore "
+                                 "should be used with interactive service. If you want to "
+                                 "use openvpn from command line, you need to do SYSTEM "
+                                 "elevation yourself (for example with psexec).");
+                    break;
+
+                case ERROR_ALREADY_INITIALIZED:
+                    msg(M_NONFATAL, "Adapter %s is already in use", device_guid);
+                    break;
+
+                default:
+                    msg(M_NONFATAL | M_ERRNO, "Failed to register ring buffers");
+            }
+            ret = false;
+        }
 
+    }
     return ret;
 }
 
diff --git a/src/openvpnmsica/Makefile.in b/src/openvpnmsica/Makefile.in
new file mode 100644
index 0000000..80d5904
--- /dev/null
+++ b/src/openvpnmsica/Makefile.in
@@ -0,0 +1,864 @@
+# Makefile.in generated by automake 1.16.1 from Makefile.am.
+# @configure_input@
+
+# Copyright (C) 1994-2018 Free Software Foundation, Inc.
+
+# This Makefile.in is free software; the Free Software Foundation
+# gives unlimited permission to copy and/or distribute it,
+# with or without modifications, as long as this notice is preserved.
+
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY, to the extent permitted by law; without
+# even the implied warranty of MERCHANTABILITY or FITNESS FOR A
+# PARTICULAR PURPOSE.
+
+@SET_MAKE@
+
+#
+#  openvpnmsica -- Custom Action DLL to provide OpenVPN-specific support to MSI packages
+#
+#  Copyright (C) 2002-2018 OpenVPN Inc <sales@openvpn.net>
+#  Copyright (C) 2018-2020 Simon Rozman <simon@rozman.si>
+#
+#  This program is free software; you can redistribute it and/or modify
+#  it under the terms of the GNU General Public License version 2
+#  as published by the Free Software Foundation.
+#
+#  This program is distributed in the hope that it will be useful,
+#  but WITHOUT ANY WARRANTY; without even the implied warranty of
+#  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+#  GNU General Public License for more details.
+#
+#  You should have received a copy of the GNU General Public License along
+#  with this program; if not, write to the Free Software Foundation, Inc.,
+#  51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+#
+
+#
+#  OpenVPN -- An application to securely tunnel IP networks
+#             over a single UDP port, with support for SSL/TLS-based
+#             session authentication and key exchange,
+#             packet encryption, packet authentication, and
+#             packet compression.
+#
+#  Copyright (C) 2008-2012 Alon Bar-Lev <alon.barlev@gmail.com>
+#
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+MAINTAINERCLEANFILES = $(srcdir)/Makefile.in
+EXTRA_DIST = \
+	openvpnserv.vcxproj \
+	openvpnserv.vcxproj.filters
+
+AM_CPPFLAGS = \
+	-I$(top_srcdir)/include -I$(top_srcdir)/src/openvpn -I$(top_srcdir)/src/compat
+
+@WIN32_TRUE@openvpnserv_CFLAGS = \
+@WIN32_TRUE@	-municode -D_UNICODE \
+@WIN32_TRUE@	-UNTDDI_VERSION -U_WIN32_WINNT \
+@WIN32_TRUE@	-D_WIN32_WINNT=_WIN32_WINNT_VISTA
+
+@WIN32_TRUE@openvpnserv_LDADD = -ladvapi32 -luserenv -liphlpapi -lfwpuclnt -lrpcrt4 -lshlwapi -lnetapi32 -lws2_32 -lntdll
+openvpnserv_SOURCES = \
+        common.c \
+	automatic.c \
+	interactive.c \
+	service.c service.h \
+	validate.c validate.h \
+	$(top_srcdir)/src/openvpn/block_dns.c $(top_srcdir)/src/openvpn/block_dns.h \
+	openvpnserv_resources.rc \
+	$(top_srcdir)/src/openvpn/ring_buffer.h
+
+all: all-am
+
+.SUFFIXES:
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+	        && { if test -f $@; then exit 0; else break; fi; }; \
+	      exit 1;; \
+	  esac; \
+	done; \
+	echo ' cd $(top_srcdir) && $(AUTOMAKE) --foreign src/openvpnserv/Makefile'; \
+	$(am__cd) $(top_srcdir) && \
+	  $(AUTOMAKE) --foreign src/openvpnserv/Makefile
+Makefile: $(srcdir)/Makefile.in $(top_builddir)/config.status
+	@case '$?' in \
+	  *config.status*) \
+	    cd $(top_builddir) && $(MAKE) $(AM_MAKEFLAGS) am--refresh;; \
+	  *) \
+	    echo ' cd $(top_builddir) && $(SHELL) ./config.status $(subdir)/$@ $(am__maybe_remake_depfiles)'; \
+	    cd $(top_builddir) && $(SHELL) ./config.status $(subdir)/$@ $(am__maybe_remake_depfiles);; \
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+$(top_srcdir)/build/ltrc.inc $(am__empty):
+
+$(top_builddir)/config.status: $(top_srcdir)/configure $(CONFIG_STATUS_DEPENDENCIES)
+	cd $(top_builddir) && $(MAKE) $(AM_MAKEFLAGS) am--refresh
+
+$(top_srcdir)/configure:  $(am__configure_deps)
+	cd $(top_builddir) && $(MAKE) $(AM_MAKEFLAGS) am--refresh
+$(ACLOCAL_M4):  $(am__aclocal_m4_deps)
+	cd $(top_builddir) && $(MAKE) $(AM_MAKEFLAGS) am--refresh
+$(am__aclocal_m4_deps):
+install-sbinPROGRAMS: $(sbin_PROGRAMS)
+	@$(NORMAL_INSTALL)
+	@list='$(sbin_PROGRAMS)'; test -n "$(sbindir)" || list=; \
+	if test -n "$$list"; then \
+	  echo " $(MKDIR_P) '$(DESTDIR)$(sbindir)'"; \
+	  $(MKDIR_P) "$(DESTDIR)$(sbindir)" || exit 1; \
+	fi; \
+	for p in $$list; do echo "$$p $$p"; done | \
+	sed 's/$(EXEEXT)$$//' | \
+	while read p p1; do if test -f $$p \
+	 || test -f $$p1 \
+	  ; then echo "$$p"; echo "$$p"; else :; fi; \
+	done | \
+	sed -e 'p;s,.*/,,;n;h' \
+	    -e 's|.*|.|' \
+	    -e 'p;x;s,.*/,,;s/$(EXEEXT)$$//;$(transform);s/$$/$(EXEEXT)/' | \
+	sed 'N;N;N;s,\n, ,g' | \
+	$(AWK) 'BEGIN { files["."] = ""; dirs["."] = 1 } \
+	  { d=$$3; if (dirs[d] != 1) { print "d", d; dirs[d] = 1 } \
+	    if ($$2 == $$4) files[d] = files[d] " " $$1; \
+	    else { print "f", $$3 "/" $$4, $$1; } } \
+	  END { for (d in files) print "f", d, files[d] }' | \
+	while read type dir files; do \
+	    if test "$$dir" = .; then dir=; else dir=/$$dir; fi; \
+	    test -z "$$files" || { \
+	    echo " $(INSTALL_PROGRAM_ENV) $(LIBTOOL) $(AM_LIBTOOLFLAGS) $(LIBTOOLFLAGS) --mode=install $(INSTALL_PROGRAM) $$files '$(DESTDIR)$(sbindir)$$dir'"; \
+	    $(INSTALL_PROGRAM_ENV) $(LIBTOOL) $(AM_LIBTOOLFLAGS) $(LIBTOOLFLAGS) --mode=install $(INSTALL_PROGRAM) $$files "$(DESTDIR)$(sbindir)$$dir" || exit $$?; \
+	    } \
+	; done
+
+uninstall-sbinPROGRAMS:
+	@$(NORMAL_UNINSTALL)
+	@list='$(sbin_PROGRAMS)'; test -n "$(sbindir)" || list=; \
+	files=`for p in $$list; do echo "$$p"; done | \
+	  sed -e 'h;s,^.*/,,;s/$(EXEEXT)$$//;$(transform)' \
+	      -e 's/$$/$(EXEEXT)/' \
+	`; \
+	test -n "$$list" || exit 0; \
+	echo " ( cd '$(DESTDIR)$(sbindir)' && rm -f" $$files ")"; \
+	cd "$(DESTDIR)$(sbindir)" && rm -f $$files
+
+clean-sbinPROGRAMS:
+	@list='$(sbin_PROGRAMS)'; test -n "$$list" || exit 0; \
+	echo " rm -f" $$list; \
+	rm -f $$list || exit $$?; \
+	test -n "$(EXEEXT)" || exit 0; \
+	list=`for p in $$list; do echo "$$p"; done | sed 's/$(EXEEXT)$$//'`; \
+	echo " rm -f" $$list; \
+	rm -f $$list
+
+openvpnserv$(EXEEXT): $(openvpnserv_OBJECTS) $(openvpnserv_DEPENDENCIES) $(EXTRA_openvpnserv_DEPENDENCIES) 
+	@rm -f openvpnserv$(EXEEXT)
+	$(AM_V_CCLD)$(openvpnserv_LINK) $(openvpnserv_OBJECTS) $(openvpnserv_LDADD) $(LIBS)
+
+mostlyclean-compile:
+	-rm -f *.$(OBJEXT)
+
+distclean-compile:
+	-rm -f *.tab.c
+
+@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/openvpnserv-automatic.Po@am__quote@ # am--include-marker
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+$(am__depfiles_remade):
+	@$(MKDIR_P) $(@D)
+	@echo '# dummy' >$@-t && $(am__mv) $@-t $@
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+am--depfiles: $(am__depfiles_remade)
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+.c.o:
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new file mode 100644
index 0000000..61a0f23
--- /dev/null
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diff --git a/src/plugins/auth-pam/Makefile.in b/src/plugins/auth-pam/Makefile.in
new file mode 100644
index 0000000..3354d85
--- /dev/null
+++ b/src/plugins/auth-pam/Makefile.in
@@ -0,0 +1,787 @@
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new file mode 100644
index 0000000..7256fdf
--- /dev/null
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+#
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+#             over a single UDP port, with support for SSL/TLS-based
+#             session authentication and key exchange,
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+install-exec: install-exec-recursive
+install-data: install-data-recursive
+uninstall: uninstall-recursive
+
+install-am: all-am
+	@$(MAKE) $(AM_MAKEFLAGS) install-exec-am install-data-am
+
+installcheck: installcheck-recursive
+install-strip:
+	if test -z '$(STRIP)'; then \
+	  $(MAKE) $(AM_MAKEFLAGS) INSTALL_PROGRAM="$(INSTALL_STRIP_PROGRAM)" \
+	    install_sh_PROGRAM="$(INSTALL_STRIP_PROGRAM)" INSTALL_STRIP_FLAG=-s \
+	      install; \
+	else \
+	  $(MAKE) $(AM_MAKEFLAGS) INSTALL_PROGRAM="$(INSTALL_STRIP_PROGRAM)" \
+	    install_sh_PROGRAM="$(INSTALL_STRIP_PROGRAM)" INSTALL_STRIP_FLAG=-s \
+	    "INSTALL_PROGRAM_ENV=STRIPPROG='$(STRIP)'" install; \
+	fi
+mostlyclean-generic:
+
+clean-generic:
+
+distclean-generic:
+	-test -z "$(CONFIG_CLEAN_FILES)" || rm -f $(CONFIG_CLEAN_FILES)
+	-test . = "$(srcdir)" || test -z "$(CONFIG_CLEAN_VPATH_FILES)" || rm -f $(CONFIG_CLEAN_VPATH_FILES)
+
+maintainer-clean-generic:
+	@echo "This command is intended for maintainers to use"
+	@echo "it deletes files that may require special tools to rebuild."
+	-test -z "$(MAINTAINERCLEANFILES)" || rm -f $(MAINTAINERCLEANFILES)
+clean: clean-recursive
+
+clean-am: clean-generic clean-libtool mostlyclean-am
+
+distclean: distclean-recursive
+	-rm -f Makefile
+distclean-am: clean-am distclean-generic distclean-tags
+
+dvi: dvi-recursive
+
+dvi-am:
+
+html: html-recursive
+
+html-am:
+
+info: info-recursive
+
+info-am:
+
+install-data-am:
+
+install-dvi: install-dvi-recursive
+
+install-dvi-am:
+
+install-exec-am:
+
+install-html: install-html-recursive
+
+install-html-am:
+
+install-info: install-info-recursive
+
+install-info-am:
+
+install-man:
+
+install-pdf: install-pdf-recursive
+
+install-pdf-am:
+
+install-ps: install-ps-recursive
+
+install-ps-am:
+
+installcheck-am:
+
+maintainer-clean: maintainer-clean-recursive
+	-rm -f Makefile
+maintainer-clean-am: distclean-am maintainer-clean-generic
+
+mostlyclean: mostlyclean-recursive
+
+mostlyclean-am: mostlyclean-generic mostlyclean-libtool
+
+pdf: pdf-recursive
+
+pdf-am:
+
+ps: ps-recursive
+
+ps-am:
+
+uninstall-am:
+
+.MAKE: $(am__recursive_targets) check-am install-am install-strip
+
+.PHONY: $(am__recursive_targets) CTAGS GTAGS TAGS all all-am check \
+	check-TESTS check-am clean clean-generic clean-libtool \
+	cscopelist-am ctags ctags-am distclean distclean-generic \
+	distclean-libtool distclean-tags distdir dvi dvi-am html \
+	html-am info info-am install install-am install-data \
+	install-data-am install-dvi install-dvi-am install-exec \
+	install-exec-am install-html install-html-am install-info \
+	install-info-am install-man install-pdf install-pdf-am \
+	install-ps install-ps-am install-strip installcheck \
+	installcheck-am installdirs installdirs-am maintainer-clean \
+	maintainer-clean-generic mostlyclean mostlyclean-generic \
+	mostlyclean-libtool pdf pdf-am ps ps-am tags tags-am uninstall \
+	uninstall-am
+
+.PRECIOUS: Makefile
+
+
+# Tell versions [3.59,3.63) of GNU make to not export all variables.
+# Otherwise a system limit (for SysV at least) may be exceeded.
+.NOEXPORT:
diff --git a/tests/t_client.sh b/tests/t_client.sh
new file mode 100755
index 0000000..9024a06
--- /dev/null
+++ b/tests/t_client.sh
@@ -0,0 +1,426 @@
+#!/bin/sh
+#
+# run OpenVPN client against ``test reference'' server
+# - check that ping, http, ... via tunnel works
+# - check that interface config / routes are properly cleaned after test end
+#
+# prerequisites:
+# - openvpn binary in current directory
+# - writable current directory to create subdir for logs
+# - t_client.rc in current directory OR source dir that specifies tests
+# - for "ping4" checks: fping binary in $PATH
+# - for "ping6" checks: fping6 binary in $PATH
+#
+
+srcdir="${srcdir:-.}"
+top_builddir="${top_builddir:-..}"
+if [ -r "${top_builddir}"/t_client.rc ] ; then
+    . "${top_builddir}"/t_client.rc
+elif [ -r "${srcdir}"/t_client.rc ] ; then
+    . "${srcdir}"/t_client.rc
+else
+    echo "$0: cannot find 't_client.rc' in build dir ('${top_builddir}')" >&2
+    echo "$0: or source directory ('${srcdir}'). SKIPPING TEST." >&2
+    exit 77
+fi
+
+# Check for external dependencies
+which fping > /dev/null
+if [ $? -ne 0 ]; then
+    echo "$0: fping is not available in \$PATH" >&2
+    exit 77
+fi
+which fping6 > /dev/null
+if [ $? -ne 0 ]; then
+    echo "$0: fping6 is not available in \$PATH" >&2
+    exit 77
+fi
+
+KILL_EXEC=`which kill`
+if [ $? -ne 0 ]; then
+    echo "$0: kill not found in \$PATH" >&2
+    exit 77
+fi
+
+if [ ! -x "${top_builddir}/src/openvpn/openvpn" ]
+then
+    echo "no (executable) openvpn binary in current build tree. FAIL." >&2
+    exit 1
+fi
+
+if [ ! -w . ]
+then
+    echo "current directory is not writable (required for logging). FAIL." >&2
+    exit 1
+fi
+
+if [ -z "$CA_CERT" ] ; then
+    echo "CA_CERT not defined in 't_client.rc'. SKIP test." >&2
+    exit 77
+fi
+
+if [ -z "$TEST_RUN_LIST" ] ; then
+    echo "TEST_RUN_LIST empty, no tests defined.  SKIP test." >&2
+    exit 77
+fi
+
+# Ensure PREFER_KSU is in a known state
+PREFER_KSU="${PREFER_KSU:-0}"
+
+# make sure we have permissions to run ifconfig/route from OpenVPN
+# can't use "id -u" here - doesn't work on Solaris
+ID=`id`
+if expr "$ID" : "uid=0" >/dev/null
+then :
+else
+    if [ "${PREFER_KSU}" -eq 1 ];
+    then
+        # Check if we have a valid kerberos ticket
+        klist -l 1>/dev/null 2>/dev/null
+        if [ $? -ne 0 ];
+        then
+            # No kerberos ticket found, skip ksu and fallback to RUN_SUDO
+            PREFER_KSU=0
+            echo "$0: No Kerberos ticket available.  Will not use ksu."
+        else
+            RUN_SUDO="ksu -q -e"
+        fi
+    fi
+
+    if [ -z "$RUN_SUDO" ]
+    then
+        echo "$0: this test must run be as root, or RUN_SUDO=... " >&2
+        echo "      must be set correctly in 't_client.rc'. SKIP." >&2
+        exit 77
+    else
+        # We have to use sudo. Make sure that we (hopefully) do not have
+        # to ask the users password during the test. This is done to
+        # prevent timing issues, e.g. when the waits for openvpn to start
+	if $RUN_SUDO $KILL_EXEC -0 $$
+	then
+	    echo "$0: $RUN_SUDO $KILL_EXEC -0 succeeded, good."
+	else
+	    echo "$0: $RUN_SUDO $KILL_EXEC -0 failed, cannot go on. SKIP." >&2
+	    exit 77
+	fi
+    fi
+fi
+
+LOGDIR=t_client-`hostname`-`date +%Y%m%d-%H%M%S`
+if mkdir $LOGDIR
+then :
+else
+    echo "can't create log directory '$LOGDIR'. FAIL." >&2
+    exit 1
+fi
+
+exit_code=0
+
+# ----------------------------------------------------------
+# helper functions
+# ----------------------------------------------------------
+
+# print failure message, increase FAIL counter
+fail()
+{
+    echo ""
+    echo "FAIL: $@" >&2
+    fail_count=$(( $fail_count + 1 ))
+}
+
+# print "all interface IP addresses" + "all routes"
+# this is higly system dependent...
+get_ifconfig_route()
+{
+    # linux / iproute2? (-> if configure got a path)
+    if [ -n "/usr/sbin/ip" ]
+    then
+	echo "-- linux iproute2 --"
+	/usr/sbin/ip addr show     | grep -v valid_lft
+	/usr/sbin/ip route show
+	/usr/sbin/ip -o -6 route show | grep -v ' cache' | sed -E -e 's/ expires [0-9]*sec//' -e 's/ (mtu|hoplimit|cwnd|ssthresh) [0-9]+//g' -e 's/ (rtt|rttvar) [0-9]+ms//g'
+	return
+    fi
+
+    # try uname
+    case `uname -s` in
+	Linux)
+	   echo "-- linux / ifconfig --"
+	   LANG=C /usr/sbin/ifconfig -a |egrep  "( addr:|encap:)"
+	   LANG=C netstat -rn -4 -6
+	   return
+	   ;;
+	FreeBSD|NetBSD|Darwin)
+	   echo "-- FreeBSD/NetBSD/Darwin [MacOS X] --"
+	   /usr/sbin/ifconfig -a | egrep "(flags=|inet)"
+	   netstat -rn | awk '$3 !~ /^UHL/ { print $1,$2,$3,$NF }'
+	   return
+	   ;;
+	OpenBSD)
+	   echo "-- OpenBSD --"
+	   /usr/sbin/ifconfig -a | egrep "(flags=|inet)" | \
+		sed -e 's/pltime [0-9]*//' -e 's/vltime [0-9]*//'
+	   netstat -rn | awk '$3 !~ /^UHL/ { print $1,$2,$3,$NF }'
+	   return
+	   ;;
+	SunOS)
+	   echo "-- Solaris --"
+	   /usr/sbin/ifconfig -a | egrep "(flags=|inet)"
+	   netstat -rn | awk '$3 !~ /^UHL/ { print $1,$2,$3,$6 }'
+	   return
+	   ;;
+	AIX)
+	   echo "-- AIX --"
+	   /usr/sbin/ifconfig -a | egrep "(flags=|inet)"
+	   netstat -rn | awk '$3 !~ /^UHL/ { print $1,$2,$3,$6 }'
+	   return
+	   ;;
+    esac
+
+    echo "get_ifconfig_route(): no idea how to get info on your OS.  FAIL." >&2
+    exit 20
+}
+
+# ----------------------------------------------------------
+# check ifconfig
+#  arg1: "4" or "6" -> for message
+#  arg2: IPv4/IPv6 address that must show up in out of "get_ifconfig_route"
+check_ifconfig()
+{
+    proto=$1 ; shift
+    expect_list="$@"
+
+    if [ -z "$expect_list" ] ; then return ; fi
+
+    for expect in $expect_list
+    do
+	if get_ifconfig_route | fgrep "$expect" >/dev/null
+	then :
+	else
+	    fail "check_ifconfig(): expected IPv$proto address '$expect' not found in ifconfig output."
+	fi
+    done
+}
+
+# ----------------------------------------------------------
+# run pings
+#  arg1: "4" or "6" -> fping/fing6
+#  arg2: "want_ok" or "want_fail" (expected ping result)
+#  arg3... -> fping arguments (host list)
+run_ping_tests()
+{
+    proto=$1 ; want=$2 ; shift ; shift
+    targetlist="$@"
+
+    # "no targets" is fine
+    if [ -z "$targetlist" ] ; then return ; fi
+
+    case $proto in
+	4) cmd=fping ;;
+	6) cmd=fping6 ;;
+	*) echo "internal error in run_ping_tests arg 1: '$proto'" >&2
+	   exit 1 ;;
+    esac
+
+    case $want in
+	want_ok)   sizes_list="64 1440 3000" ;;
+	want_fail) sizes_list="64" ;;
+    esac
+
+    for bytes in $sizes_list
+    do
+	echo "run IPv$proto ping tests ($want), $bytes byte packets..."
+
+	echo "$cmd -b $bytes -C 20 -p 250 -q $FPING_EXTRA_ARGS $targetlist" >>$LOGDIR/$SUF:fping.out
+	$cmd -b $bytes -C 20 -p 250 -q $FPING_EXTRA_ARGS $targetlist >>$LOGDIR/$SUF:fping.out 2>&1
+
+	# while OpenVPN is running, pings must succeed (want='want_ok')
+	# before OpenVPN is up, pings must NOT succeed (want='want_fail')
+
+	rc=$?
+	if [ $rc = 0 ] 				# all ping OK
+	then
+	    if [ $want = "want_fail" ]		# not what we want
+	    then
+		fail "IPv$proto ping test succeeded, but needs to *fail*."
+	    fi
+	else					# ping failed
+	    if [ $want = "want_ok" ]		# not what we wanted
+	    then
+		fail "IPv$proto ping test ($bytes bytes) failed, but should succeed."
+	    fi
+	fi
+    done
+}
+
+# ----------------------------------------------------------
+# main test loop
+# ----------------------------------------------------------
+SUMMARY_OK=
+SUMMARY_FAIL=
+
+for SUF in $TEST_RUN_LIST
+do
+    # get config variables
+    eval test_prep=\"\$PREPARE_$SUF\"
+    eval test_postinit=\"\$POSTINIT_CMD_$SUF\"
+    eval test_cleanup=\"\$CLEANUP_$SUF\"
+    eval test_run_title=\"\$RUN_TITLE_$SUF\"
+    eval openvpn_conf=\"\$OPENVPN_CONF_$SUF\"
+    eval expect_ifconfig4=\"\$EXPECT_IFCONFIG4_$SUF\"
+    eval expect_ifconfig6=\"\$EXPECT_IFCONFIG6_$SUF\"
+    eval ping4_hosts=\"\$PING4_HOSTS_$SUF\"
+    eval ping6_hosts=\"\$PING6_HOSTS_$SUF\"
+
+    # If EXCEPT_IFCONFIG* variables for this test are missing, run an --up
+    # script to generate them dynamically.
+    if [ -z "$expect_ifconfig4" ] || [ -z "$expect_ifconfig6" ]; then
+        up="--setenv TESTNUM $SUF --setenv TOP_BUILDDIR ${top_builddir} --script-security 2 --up ${srcdir}/update_t_client_ips.sh"
+    else
+        up=""
+    fi
+
+    echo -e "\n### test run $SUF: '$test_run_title' ###\n"
+    fail_count=0
+
+    if [ -n "$test_prep" ]; then
+        echo -e "running preparation: '$test_prep'"
+        eval $test_prep
+    fi
+
+    echo "save pre-openvpn ifconfig + route"
+    get_ifconfig_route >$LOGDIR/$SUF:ifconfig_route_pre.txt
+
+    echo -e "\nrun pre-openvpn ping tests - targets must not be reachable..."
+    run_ping_tests 4 want_fail "$ping4_hosts"
+    run_ping_tests 6 want_fail "$ping6_hosts"
+    if [ "$fail_count" = 0 ] ; then
+        echo -e "OK.\n"
+    else
+	echo -e "FAIL: make sure that ping hosts are ONLY reachable via VPN, SKIP test $SUF".
+	SUMMARY_FAIL="$SUMMARY_FAIL $SUF"
+	exit_code=31
+	continue
+    fi
+
+    pidfile="${top_builddir}/tests/$LOGDIR/openvpn-$SUF.pid"
+    openvpn_conf="$openvpn_conf --writepid $pidfile $up"
+    echo " run openvpn $openvpn_conf"
+    echo "# src/openvpn/openvpn $openvpn_conf" >$LOGDIR/$SUF:openvpn.log
+    umask 022
+    $RUN_SUDO "${top_builddir}/src/openvpn/openvpn" $openvpn_conf >>$LOGDIR/$SUF:openvpn.log &
+    sudopid=$!
+
+    # Check if OpenVPN has initialized before continuing.  It will check every 3rd second up
+    # to $ovpn_init_check times.
+    ovpn_init_check=10
+    ovpn_init_success=0
+    while [ $ovpn_init_check -gt 0 ];
+    do
+       sleep 3  # Wait for OpenVPN to initialize and have had time to write the pid file
+       grep "Initialization Sequence Completed" $LOGDIR/$SUF:openvpn.log >/dev/null
+       if [ $? -eq 0 ]; then
+           ovpn_init_check=0
+           ovpn_init_success=1
+       fi
+       ovpn_init_check=$(( $ovpn_init_check - 1 ))
+    done
+
+    opid=`cat $pidfile`
+    if [ -n "$opid" ]; then
+        echo "  OpenVPN running with PID $opid"
+    else
+        echo "  Could not read OpenVPN PID file" >&2
+    fi
+
+    # If OpenVPN did not start
+    if [ $ovpn_init_success -ne 1 -o -z "$opid" ]; then
+        echo "$0:  OpenVPN did not initialize in a reasonable time" >&2
+        if [ -n "$opid" ]; then
+           $RUN_SUDO $KILL_EXEC $opid
+        fi
+        $RUN_SUDO $KILL_EXEC $sudopid
+	echo "tail -5 $SUF:openvpn.log" >&2
+	tail -5 $LOGDIR/$SUF:openvpn.log >&2
+	echo -e "\nFAIL. skip rest of sub-tests for test run $SUF.\n" >&2
+	trap - 0 1 2 3 15
+	SUMMARY_FAIL="$SUMMARY_FAIL $SUF"
+	exit_code=30
+	continue
+    fi
+
+    # make sure openvpn client is terminated in case shell exits
+    trap "$RUN_SUDO $KILL_EXEC $opid" 0
+    trap "$RUN_SUDO $KILL_EXEC $opid ; trap - 0 ; exit 1" 1 2 3 15
+
+    # compare whether anything changed in ifconfig/route setup?
+    echo "save ifconfig+route"
+    get_ifconfig_route >$LOGDIR/$SUF:ifconfig_route.txt
+
+    echo -n "compare pre-openvpn ifconfig+route with current values..."
+    if diff $LOGDIR/$SUF:ifconfig_route_pre.txt \
+	    $LOGDIR/$SUF:ifconfig_route.txt >/dev/null
+    then
+	fail "no differences between ifconfig/route before OpenVPN start and now."
+    else
+	echo -e " OK!\n"
+    fi
+
+    # post init script needed?
+    if [ -n "$test_postinit" ]; then
+        echo -e "running post-init cmd: '$test_postinit'"
+        eval $test_postinit
+    fi
+
+    # expected ifconfig values in there?
+    check_ifconfig 4 "$expect_ifconfig4"
+    check_ifconfig 6 "$expect_ifconfig6"
+
+    run_ping_tests 4 want_ok "$ping4_hosts"
+    run_ping_tests 6 want_ok "$ping6_hosts"
+    echo -e "ping tests done.\n"
+
+    echo "stopping OpenVPN"
+    $RUN_SUDO $KILL_EXEC $opid
+    wait $!
+    rc=$?
+    if [ $rc != 0 ] ; then
+	fail "OpenVPN return code $rc, expect 0"
+    fi
+
+    echo -e "\nsave post-openvpn ifconfig + route..."
+    get_ifconfig_route >$LOGDIR/$SUF:ifconfig_route_post.txt
+
+    echo -n "compare pre- and post-openvpn ifconfig + route..."
+    if diff $LOGDIR/$SUF:ifconfig_route_pre.txt \
+	    $LOGDIR/$SUF:ifconfig_route_post.txt >$LOGDIR/$SUF:ifconfig_route_diff.txt
+    then
+	echo -e " OK.\n"
+    else
+	cat $LOGDIR/$SUF:ifconfig_route_diff.txt >&2
+	fail "differences between pre- and post-ifconfig/route"
+    fi
+    if [ "$fail_count" = 0 ] ; then
+        echo -e "test run $SUF: all tests OK.\n"
+	SUMMARY_OK="$SUMMARY_OK $SUF"
+    else
+	echo -e "test run $SUF: $fail_count test failures. FAIL.\n";
+	SUMMARY_FAIL="$SUMMARY_FAIL $SUF"
+	exit_code=30
+    fi
+
+    if [ -n "$test_cleanup" ]; then
+        echo -e "cleaning up: '$test_cleanup'"
+        eval $test_cleanup
+    fi
+
+done
+
+if [ -z "$SUMMARY_OK" ] ; then SUMMARY_OK=" none"; fi
+if [ -z "$SUMMARY_FAIL" ] ; then SUMMARY_FAIL=" none"; fi
+echo "Test sets succeeded:$SUMMARY_OK."
+echo "Test sets failed:$SUMMARY_FAIL."
+
+# remove trap handler
+trap - 0 1 2 3 15
+exit $exit_code
diff --git a/tests/unit_tests/Makefile.in b/tests/unit_tests/Makefile.in
new file mode 100644
index 0000000..34eb8f7
--- /dev/null
+++ b/tests/unit_tests/Makefile.in
@@ -0,0 +1,691 @@
+# Makefile.in generated by automake 1.16.1 from Makefile.am.
+# @configure_input@
+
+# Copyright (C) 1994-2018 Free Software Foundation, Inc.
+
+# This Makefile.in is free software; the Free Software Foundation
+# gives unlimited permission to copy and/or distribute it,
+# with or without modifications, as long as this notice is preserved.
+
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY, to the extent permitted by law; without
+# even the implied warranty of MERCHANTABILITY or FITNESS FOR A
+# PARTICULAR PURPOSE.
+
+@SET_MAKE@
+VPATH = @srcdir@
+am__is_gnu_make = { \
+  if test -z '$(MAKELEVEL)'; then \
+    false; \
+  elif test -n '$(MAKE_HOST)'; then \
+    true; \
+  elif test -n '$(MAKE_VERSION)' && test -n '$(CURDIR)'; then \
+    true; \
+  else \
+    false; \
+  fi; \
+}
+am__make_running_with_option = \
+  case $${target_option-} in \
+      ?) ;; \
+      *) echo "am__make_running_with_option: internal error: invalid" \
+              "target option '$${target_option-}' specified" >&2; \
+         exit 1;; \
+  esac; \
+  has_opt=no; \
+  sane_makeflags=$$MAKEFLAGS; \
+  if $(am__is_gnu_make); then \
+    sane_makeflags=$$MFLAGS; \
+  else \
+    case $$MAKEFLAGS in \
+      *\\[\ \	]*) \
+        bs=\\; \
+        sane_makeflags=`printf '%s\n' "$$MAKEFLAGS" \
+          | sed "s/$$bs$$bs[$$bs $$bs	]*//g"`;; \
+    esac; \
+  fi; \
+  skip_next=no; \
+  strip_trailopt () \
+  { \
+    flg=`printf '%s\n' "$$flg" | sed "s/$$1.*$$//"`; \
+  }; \
+  for flg in $$sane_makeflags; do \
+    test $$skip_next = yes && { skip_next=no; continue; }; \
+    case $$flg in \
+      *=*|--*) continue;; \
+        -*I) strip_trailopt 'I'; skip_next=yes;; \
+      -*I?*) strip_trailopt 'I';; \
+        -*O) strip_trailopt 'O'; skip_next=yes;; \
+      -*O?*) strip_trailopt 'O';; \
+        -*l) strip_trailopt 'l'; skip_next=yes;; \
+      -*l?*) strip_trailopt 'l';; \
+      -[dEDm]) skip_next=yes;; \
+      -[JT]) skip_next=yes;; \
+    esac; \
+    case $$flg in \
+      *$$target_option*) has_opt=yes; break;; \
+    esac; \
+  done; \
+  test $$has_opt = yes
+am__make_dryrun = (target_option=n; $(am__make_running_with_option))
+am__make_keepgoing = (target_option=k; $(am__make_running_with_option))
+pkgdatadir = $(datadir)/@PACKAGE@
+pkgincludedir = $(includedir)/@PACKAGE@
+pkglibdir = $(libdir)/@PACKAGE@
+pkglibexecdir = $(libexecdir)/@PACKAGE@
+am__cd = CDPATH="$${ZSH_VERSION+.}$(PATH_SEPARATOR)" && cd
+install_sh_DATA = $(install_sh) -c -m 644
+install_sh_PROGRAM = $(install_sh) -c
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+INSTALL_HEADER = $(INSTALL_DATA)
+transform = $(program_transform_name)
+NORMAL_INSTALL = :
+PRE_INSTALL = :
+POST_INSTALL = :
+NORMAL_UNINSTALL = :
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diff --git a/tests/unit_tests/README.md b/tests/unit_tests/README.md
deleted file mode 100644
index de8adb4..0000000
--- a/tests/unit_tests/README.md
+++ /dev/null
@@ -1,40 +0,0 @@
-Unit Tests
-===========
-
-This directory contains unit tests for openvpn. New features/bugfixes should be written in a test friendly way and come with corresponding tests.
-
-Run tests
-----------
-
-Tests are run by `make check`. A failed tests stops test execution. To run all
-tests regardless of errors call `make -k check`.
-
-Add new tests to existing test suite
--------------------------------------
-
-Test suites are organized in directories. [example_test/](example_test/) is an example
-for a test suite with two test executables. Feel free to use it as a template for new tests.
-
-Test suites
---------------------
-
-Test suites live inside a subdirectory of `$ROOT/tests/unit_tests`, e.g. `$ROOT/tests/unit_tests/my_feature`.
-
-Test suites are configured by a `Makefile.am`. Tests are executed by testdrivers. One testsuite can contain more than one testdriver.
-
-### Hints
-* Name suites & testdrivers in a way that the name of the driver says something about which component/feature is tested
-* Name the testdriver executable `*_testdriver`. This way it gets picked up by the default `.gitignore`
-  * If this is not feasible: Add all output to a `.gitignore`* Use descriptive test names: `coffee_brewing__with_no_beans__fails` vs. `test34`
-* Testing a configurable feature?  Wrap test execution with a conditional (see [auth_pam](plugins/auth-pam/Makefile.am) for an example)
-* Add multiple test-drivers when one testdriver looks crowded with tests
-
-### New Test Suites
-1.  Organize tests in folders for features.
-2.  Add the new test directory to `SUBDIRS` in `Makefile.am`
-3.  Edit `configure.ac` and add the new `Makefile` to `AC_CONFIG_FILES`
-4.  Run `./configure`, and *enable* the feature you'd like to test
-5.  Make sure that `make check` runs your tests
-6.  Check: Would a stranger be able to easily find your tests by you looking at the test output?
-7. Run `./configure`, and *disable* the feature you'd like to test
-8.  Make sure that `make check` does *not run* your tests
diff --git a/tests/unit_tests/engine-key/Makefile.in b/tests/unit_tests/engine-key/Makefile.in
new file mode 100644
index 0000000..05c0a32
--- /dev/null
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+	client.key \
+	passwd \
+	log.txt \
+	$(conffiles)
+
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diff --git a/tests/unit_tests/example_test/README.md b/tests/unit_tests/example_test/README.md
deleted file mode 100644
index cb75d68..0000000
--- a/tests/unit_tests/example_test/README.md
+++ /dev/null
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-This test only checks that test compilation works. This example contains two test executables.
-
-These tests can be used as template for 'real' tests.
diff --git a/tests/unit_tests/openvpn/Makefile.in b/tests/unit_tests/openvpn/Makefile.in
new file mode 100644
index 0000000..1775516
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+	tls_crypt_testdriver-base64.$(OBJEXT) \
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+	tls_crypt_testdriver-crypto.$(OBJEXT) \
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+	tls_crypt_testdriver-crypto_openssl.$(OBJEXT) \
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+	tls_crypt_testdriver-otime.$(OBJEXT) \
+	tls_crypt_testdriver-packet_id.$(OBJEXT) \
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+	./$(DEPDIR)/auth_token_testdriver-crypto_openssl.Po \
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+	./$(DEPDIR)/networking_testdriver-crypto_mbedtls.Po \
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+	./$(DEPDIR)/networking_testdriver-networking_sitnl.Po \
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+	./$(DEPDIR)/networking_testdriver-platform.Po \
+	./$(DEPDIR)/networking_testdriver-test_networking.Po \
+	./$(DEPDIR)/packet_id_testdriver-buffer.Po \
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+	./$(DEPDIR)/tls_crypt_testdriver-crypto_openssl.Po \
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+	./$(DEPDIR)/tls_crypt_testdriver-mock_msg.Po \
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+	./$(DEPDIR)/tls_crypt_testdriver-packet_id.Po \
+	./$(DEPDIR)/tls_crypt_testdriver-platform.Po \
+	./$(DEPDIR)/tls_crypt_testdriver-run_command.Po \
+	./$(DEPDIR)/tls_crypt_testdriver-test_tls_crypt.Po
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+test_binaries = $(am__append_1) crypto_testdriver packet_id_testdriver \
+	auth_token_testdriver ncp_testdriver $(am__append_2)
+openvpn_includedir = $(top_srcdir)/include
+openvpn_srcdir = $(top_srcdir)/src/openvpn
+compat_srcdir = $(top_srcdir)/src/compat
+argv_testdriver_CFLAGS = @TEST_CFLAGS@ -I$(openvpn_srcdir) -I$(compat_srcdir)
+argv_testdriver_LDFLAGS = @TEST_LDFLAGS@ -L$(openvpn_srcdir) -Wl,--wrap=parse_line
+argv_testdriver_SOURCES = test_argv.c mock_msg.c mock_msg.h \
+	mock_get_random.c \
+	$(openvpn_srcdir)/platform.c \
+	$(openvpn_srcdir)/buffer.c \
+	$(openvpn_srcdir)/argv.c
+
+buffer_testdriver_CFLAGS = @TEST_CFLAGS@ -I$(openvpn_srcdir) -I$(compat_srcdir)
+buffer_testdriver_LDFLAGS = @TEST_LDFLAGS@ -L$(openvpn_srcdir) -Wl,--wrap=parse_line
+buffer_testdriver_SOURCES = test_buffer.c mock_msg.c mock_msg.h \
+	mock_get_random.c \
+	$(openvpn_srcdir)/platform.c
+
+crypto_testdriver_CFLAGS = @TEST_CFLAGS@ \
+	-I$(openvpn_includedir) -I$(compat_srcdir) -I$(openvpn_srcdir)
+
+crypto_testdriver_LDFLAGS = @TEST_LDFLAGS@
+crypto_testdriver_SOURCES = test_crypto.c mock_msg.c mock_msg.h \
+	$(openvpn_srcdir)/buffer.c \
+	$(openvpn_srcdir)/crypto.c \
+	$(openvpn_srcdir)/crypto_mbedtls.c \
+	$(openvpn_srcdir)/crypto_openssl.c \
+	$(openvpn_srcdir)/otime.c \
+	$(openvpn_srcdir)/packet_id.c \
+	$(openvpn_srcdir)/platform.c
+
+packet_id_testdriver_CFLAGS = @TEST_CFLAGS@ \
+	-I$(openvpn_includedir) -I$(compat_srcdir) -I$(openvpn_srcdir)
+
+packet_id_testdriver_LDFLAGS = @TEST_LDFLAGS@
+packet_id_testdriver_SOURCES = test_packet_id.c mock_msg.c mock_msg.h \
+	mock_get_random.c \
+	$(openvpn_srcdir)/buffer.c \
+	$(openvpn_srcdir)/otime.c \
+	$(openvpn_srcdir)/packet_id.c \
+	$(openvpn_srcdir)/platform.c
+
+tls_crypt_testdriver_CFLAGS = @TEST_CFLAGS@ \
+	-I$(openvpn_includedir) -I$(compat_srcdir) -I$(openvpn_srcdir)
+
+tls_crypt_testdriver_LDFLAGS = @TEST_LDFLAGS@ \
+	-Wl,--wrap=buffer_read_from_file \
+	-Wl,--wrap=buffer_write_file \
+	-Wl,--wrap=parse_line \
+	-Wl,--wrap=rand_bytes
+
+tls_crypt_testdriver_SOURCES = test_tls_crypt.c mock_msg.c mock_msg.h \
+	$(openvpn_srcdir)/argv.c \
+	$(openvpn_srcdir)/base64.c \
+	$(openvpn_srcdir)/buffer.c \
+	$(openvpn_srcdir)/crypto.c \
+	$(openvpn_srcdir)/crypto_mbedtls.c \
+	$(openvpn_srcdir)/crypto_openssl.c \
+	$(openvpn_srcdir)/env_set.c \
+	$(openvpn_srcdir)/otime.c \
+	$(openvpn_srcdir)/packet_id.c \
+	$(openvpn_srcdir)/platform.c \
+	$(openvpn_srcdir)/run_command.c
+
+@HAVE_SITNL_TRUE@networking_testdriver_CFLAGS = @TEST_CFLAGS@ \
+@HAVE_SITNL_TRUE@	-I$(openvpn_includedir) -I$(compat_srcdir) -I$(openvpn_srcdir) \
+@HAVE_SITNL_TRUE@	$(OPTIONAL_CRYPTO_CFLAGS)
+
+@HAVE_SITNL_TRUE@networking_testdriver_LDFLAGS = @TEST_LDFLAGS@ -L$(openvpn_srcdir) \
+@HAVE_SITNL_TRUE@	$(OPTIONAL_CRYPTO_LIBS)
+
+@HAVE_SITNL_TRUE@networking_testdriver_SOURCES = test_networking.c mock_msg.c \
+@HAVE_SITNL_TRUE@	$(openvpn_srcdir)/networking_sitnl.c \
+@HAVE_SITNL_TRUE@	$(openvpn_srcdir)/buffer.c \
+@HAVE_SITNL_TRUE@	$(openvpn_srcdir)/crypto.c \
+@HAVE_SITNL_TRUE@	$(openvpn_srcdir)/crypto_mbedtls.c \
+@HAVE_SITNL_TRUE@	$(openvpn_srcdir)/crypto_openssl.c \
+@HAVE_SITNL_TRUE@	$(openvpn_srcdir)/otime.c \
+@HAVE_SITNL_TRUE@	$(openvpn_srcdir)/packet_id.c \
+@HAVE_SITNL_TRUE@	$(openvpn_srcdir)/platform.c
+
+auth_token_testdriver_CFLAGS = @TEST_CFLAGS@ \
+	-I$(openvpn_includedir) -I$(compat_srcdir) -I$(openvpn_srcdir) \
+	$(OPTIONAL_CRYPTO_CFLAGS)
+
+auth_token_testdriver_LDFLAGS = @TEST_LDFLAGS@ \
+	$(OPTIONAL_CRYPTO_LIBS)
+
+auth_token_testdriver_SOURCES = test_auth_token.c mock_msg.c \
+	$(openvpn_srcdir)/buffer.c \
+	$(openvpn_srcdir)/crypto.c \
+	$(openvpn_srcdir)/crypto_mbedtls.c \
+	$(openvpn_srcdir)/crypto_openssl.c \
+	$(openvpn_srcdir)/otime.c \
+	$(openvpn_srcdir)/packet_id.c \
+	$(openvpn_srcdir)/platform.c \
+	$(openvpn_srcdir)/base64.c
+
+ncp_testdriver_CFLAGS = @TEST_CFLAGS@ \
+	-I$(openvpn_includedir) -I$(compat_srcdir) -I$(openvpn_srcdir) \
+	$(OPTIONAL_CRYPTO_CFLAGS)
+
+ncp_testdriver_LDFLAGS = @TEST_LDFLAGS@ \
+	$(OPTIONAL_CRYPTO_LIBS)
+
+ncp_testdriver_SOURCES = test_ncp.c mock_msg.c \
+	$(openvpn_srcdir)/buffer.c \
+	$(openvpn_srcdir)/crypto.c \
+	$(openvpn_srcdir)/crypto_mbedtls.c \
+	$(openvpn_srcdir)/crypto_openssl.c \
+	$(openvpn_srcdir)/otime.c \
+	$(openvpn_srcdir)/packet_id.c \
+	$(openvpn_srcdir)/platform.c
+
+all: all-am
+
+.SUFFIXES:
+.SUFFIXES: .c .lo .o .obj
+$(srcdir)/Makefile.in:  $(srcdir)/Makefile.am  $(am__configure_deps)
+	@for dep in $?; do \
+	  case '$(am__configure_deps)' in \
+	    *$$dep*) \
+	      ( cd $(top_builddir) && $(MAKE) $(AM_MAKEFLAGS) am--refresh ) \
+	        && { if test -f $@; then exit 0; else break; fi; }; \
+	      exit 1;; \
+	  esac; \
+	done; \
+	echo ' cd $(top_srcdir) && $(AUTOMAKE) --foreign tests/unit_tests/openvpn/Makefile'; \
+	$(am__cd) $(top_srcdir) && \
+	  $(AUTOMAKE) --foreign tests/unit_tests/openvpn/Makefile
+Makefile: $(srcdir)/Makefile.in $(top_builddir)/config.status
+	@case '$?' in \
+	  *config.status*) \
+	    cd $(top_builddir) && $(MAKE) $(AM_MAKEFLAGS) am--refresh;; \
+	  *) \
+	    echo ' cd $(top_builddir) && $(SHELL) ./config.status $(subdir)/$@ $(am__maybe_remake_depfiles)'; \
+	    cd $(top_builddir) && $(SHELL) ./config.status $(subdir)/$@ $(am__maybe_remake_depfiles);; \
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+$(top_builddir)/config.status: $(top_srcdir)/configure $(CONFIG_STATUS_DEPENDENCIES)
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+$(top_srcdir)/configure:  $(am__configure_deps)
+	cd $(top_builddir) && $(MAKE) $(AM_MAKEFLAGS) am--refresh
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+	cd $(top_builddir) && $(MAKE) $(AM_MAKEFLAGS) am--refresh
+$(am__aclocal_m4_deps):
+
+clean-checkPROGRAMS:
+	@list='$(check_PROGRAMS)'; test -n "$$list" || exit 0; \
+	echo " rm -f" $$list; \
+	rm -f $$list || exit $$?; \
+	test -n "$(EXEEXT)" || exit 0; \
+	list=`for p in $$list; do echo "$$p"; done | sed 's/$(EXEEXT)$$//'`; \
+	echo " rm -f" $$list; \
+	rm -f $$list
+
+argv_testdriver$(EXEEXT): $(argv_testdriver_OBJECTS) $(argv_testdriver_DEPENDENCIES) $(EXTRA_argv_testdriver_DEPENDENCIES) 
+	@rm -f argv_testdriver$(EXEEXT)
+	$(AM_V_CCLD)$(argv_testdriver_LINK) $(argv_testdriver_OBJECTS) $(argv_testdriver_LDADD) $(LIBS)
+
+auth_token_testdriver$(EXEEXT): $(auth_token_testdriver_OBJECTS) $(auth_token_testdriver_DEPENDENCIES) $(EXTRA_auth_token_testdriver_DEPENDENCIES) 
+	@rm -f auth_token_testdriver$(EXEEXT)
+	$(AM_V_CCLD)$(auth_token_testdriver_LINK) $(auth_token_testdriver_OBJECTS) $(auth_token_testdriver_LDADD) $(LIBS)
+
+buffer_testdriver$(EXEEXT): $(buffer_testdriver_OBJECTS) $(buffer_testdriver_DEPENDENCIES) $(EXTRA_buffer_testdriver_DEPENDENCIES) 
+	@rm -f buffer_testdriver$(EXEEXT)
+	$(AM_V_CCLD)$(buffer_testdriver_LINK) $(buffer_testdriver_OBJECTS) $(buffer_testdriver_LDADD) $(LIBS)
+
+crypto_testdriver$(EXEEXT): $(crypto_testdriver_OBJECTS) $(crypto_testdriver_DEPENDENCIES) $(EXTRA_crypto_testdriver_DEPENDENCIES) 
+	@rm -f crypto_testdriver$(EXEEXT)
+	$(AM_V_CCLD)$(crypto_testdriver_LINK) $(crypto_testdriver_OBJECTS) $(crypto_testdriver_LDADD) $(LIBS)
+
+ncp_testdriver$(EXEEXT): $(ncp_testdriver_OBJECTS) $(ncp_testdriver_DEPENDENCIES) $(EXTRA_ncp_testdriver_DEPENDENCIES) 
+	@rm -f ncp_testdriver$(EXEEXT)
+	$(AM_V_CCLD)$(ncp_testdriver_LINK) $(ncp_testdriver_OBJECTS) $(ncp_testdriver_LDADD) $(LIBS)
+
+networking_testdriver$(EXEEXT): $(networking_testdriver_OBJECTS) $(networking_testdriver_DEPENDENCIES) $(EXTRA_networking_testdriver_DEPENDENCIES) 
+	@rm -f networking_testdriver$(EXEEXT)
+	$(AM_V_CCLD)$(networking_testdriver_LINK) $(networking_testdriver_OBJECTS) $(networking_testdriver_LDADD) $(LIBS)
+
+packet_id_testdriver$(EXEEXT): $(packet_id_testdriver_OBJECTS) $(packet_id_testdriver_DEPENDENCIES) $(EXTRA_packet_id_testdriver_DEPENDENCIES) 
+	@rm -f packet_id_testdriver$(EXEEXT)
+	$(AM_V_CCLD)$(packet_id_testdriver_LINK) $(packet_id_testdriver_OBJECTS) $(packet_id_testdriver_LDADD) $(LIBS)
+
+tls_crypt_testdriver$(EXEEXT): $(tls_crypt_testdriver_OBJECTS) $(tls_crypt_testdriver_DEPENDENCIES) $(EXTRA_tls_crypt_testdriver_DEPENDENCIES) 
+	@rm -f tls_crypt_testdriver$(EXEEXT)
+	$(AM_V_CCLD)$(tls_crypt_testdriver_LINK) $(tls_crypt_testdriver_OBJECTS) $(tls_crypt_testdriver_LDADD) $(LIBS)
+
+mostlyclean-compile:
+	-rm -f *.$(OBJEXT)
+
+distclean-compile:
+	-rm -f *.tab.c
+
+@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/argv_testdriver-argv.Po@am__quote@ # am--include-marker
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+	  $(MAKE) $(AM_MAKEFLAGS) INSTALL_PROGRAM="$(INSTALL_STRIP_PROGRAM)" \
+	    install_sh_PROGRAM="$(INSTALL_STRIP_PROGRAM)" INSTALL_STRIP_FLAG=-s \
+	    "INSTALL_PROGRAM_ENV=STRIPPROG='$(STRIP)'" install; \
+	fi
+mostlyclean-generic:
+
+clean-generic:
+
+distclean-generic:
+	-test -z "$(CONFIG_CLEAN_FILES)" || rm -f $(CONFIG_CLEAN_FILES)
+	-test . = "$(srcdir)" || test -z "$(CONFIG_CLEAN_VPATH_FILES)" || rm -f $(CONFIG_CLEAN_VPATH_FILES)
+
+maintainer-clean-generic:
+	@echo "This command is intended for maintainers to use"
+	@echo "it deletes files that may require special tools to rebuild."
+clean: clean-am
+
+clean-am: clean-checkPROGRAMS clean-generic clean-libtool \
+	mostlyclean-am
+
+distclean: distclean-am
+		-rm -f ./$(DEPDIR)/auth_pam_testdriver-test_search_and_replace.Po
+	-rm -f ./$(DEPDIR)/auth_pam_testdriver-utils.Po
+	-rm -f Makefile
+distclean-am: clean-am distclean-compile distclean-generic \
+	distclean-tags
+
+dvi: dvi-am
+
+dvi-am:
+
+html: html-am
+
+html-am:
+
+info: info-am
+
+info-am:
+
+install-data-am:
+
+install-dvi: install-dvi-am
+
+install-dvi-am:
+
+install-exec-am:
+
+install-html: install-html-am
+
+install-html-am:
+
+install-info: install-info-am
+
+install-info-am:
+
+install-man:
+
+install-pdf: install-pdf-am
+
+install-pdf-am:
+
+install-ps: install-ps-am
+
+install-ps-am:
+
+installcheck-am:
+
+maintainer-clean: maintainer-clean-am
+		-rm -f ./$(DEPDIR)/auth_pam_testdriver-test_search_and_replace.Po
+	-rm -f ./$(DEPDIR)/auth_pam_testdriver-utils.Po
+	-rm -f Makefile
+maintainer-clean-am: distclean-am maintainer-clean-generic
+
+mostlyclean: mostlyclean-am
+
+mostlyclean-am: mostlyclean-compile mostlyclean-generic \
+	mostlyclean-libtool
+
+pdf: pdf-am
+
+pdf-am:
+
+ps: ps-am
+
+ps-am:
+
+uninstall-am:
+
+.MAKE: check-am install-am install-strip
+
+.PHONY: CTAGS GTAGS TAGS all all-am am--depfiles check check-TESTS \
+	check-am clean clean-checkPROGRAMS clean-generic clean-libtool \
+	cscopelist-am ctags ctags-am distclean distclean-compile \
+	distclean-generic distclean-libtool distclean-tags distdir dvi \
+	dvi-am html html-am info info-am install install-am \
+	install-data install-data-am install-dvi install-dvi-am \
+	install-exec install-exec-am install-html install-html-am \
+	install-info install-info-am install-man install-pdf \
+	install-pdf-am install-ps install-ps-am install-strip \
+	installcheck installcheck-am installdirs maintainer-clean \
+	maintainer-clean-generic mostlyclean mostlyclean-compile \
+	mostlyclean-generic mostlyclean-libtool pdf pdf-am ps ps-am \
+	tags tags-am uninstall uninstall-am
+
+.PRECIOUS: Makefile
+
+
+# Tell versions [3.59,3.63) of GNU make to not export all variables.
+# Otherwise a system limit (for SysV at least) may be exceeded.
+.NOEXPORT:
diff --git a/version.m4 b/version.m4
index 88b3805..db690c7 100644
--- a/version.m4
+++ b/version.m4
@@ -3,12 +3,12 @@ define([PRODUCT_NAME], [OpenVPN])
 define([PRODUCT_TARNAME], [openvpn])
 define([PRODUCT_VERSION_MAJOR], [2])
 define([PRODUCT_VERSION_MINOR], [5])
-define([PRODUCT_VERSION_PATCH], [_beta1])
+define([PRODUCT_VERSION_PATCH], [_beta3])
 m4_append([PRODUCT_VERSION], [PRODUCT_VERSION_MAJOR])
 m4_append([PRODUCT_VERSION], [PRODUCT_VERSION_MINOR], [[.]])
 m4_append([PRODUCT_VERSION], [PRODUCT_VERSION_PATCH], [[]])
 define([PRODUCT_BUGREPORT], [openvpn-users@lists.sourceforge.net])
-define([PRODUCT_VERSION_RESOURCE], [2,5,0,0])
+define([PRODUCT_VERSION_RESOURCE], [2,5,0,3])
 dnl define the TAP version
 define([PRODUCT_TAP_WIN_COMPONENT_ID], [tap0901])
 define([PRODUCT_TAP_WIN_MIN_MAJOR], [9])