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Diffstat (limited to 'gnulib-m4/sys_socket_h.m4')
-rw-r--r--gnulib-m4/sys_socket_h.m488
1 files changed, 59 insertions, 29 deletions
diff --git a/gnulib-m4/sys_socket_h.m4 b/gnulib-m4/sys_socket_h.m4
index f210378..ba3ae68 100644
--- a/gnulib-m4/sys_socket_h.m4
+++ b/gnulib-m4/sys_socket_h.m4
@@ -1,12 +1,12 @@
-# sys_socket_h.m4 serial 23
-dnl Copyright (C) 2005-2018 Free Software Foundation, Inc.
+# sys_socket_h.m4 serial 29
+dnl Copyright (C) 2005-2022 Free Software Foundation, Inc.
dnl This file is free software; the Free Software Foundation
dnl gives unlimited permission to copy and/or distribute it,
dnl with or without modifications, as long as this notice is preserved.
dnl From Simon Josefsson.
-AC_DEFUN([gl_HEADER_SYS_SOCKET],
+AC_DEFUN_ONCE([gl_SYS_SOCKET_H],
[
AC_REQUIRE([gl_SYS_SOCKET_H_DEFAULTS])
AC_REQUIRE([AC_CANONICAL_HOST])
@@ -22,6 +22,7 @@ AC_DEFUN([gl_HEADER_SYS_SOCKET],
;;
esac
+ GL_GENERATE_SYS_SOCKET_H=false
AC_CACHE_CHECK([whether <sys/socket.h> is self-contained],
[gl_cv_header_sys_socket_h_selfcontained],
[
@@ -44,7 +45,7 @@ AC_DEFUN([gl_HEADER_SYS_SOCKET],
[gl_cv_header_sys_socket_h_shut=no])
])
if test $gl_cv_header_sys_socket_h_shut = no; then
- SYS_SOCKET_H='sys/socket.h'
+ GL_GENERATE_SYS_SOCKET_H=true
fi
fi
fi
@@ -83,7 +84,7 @@ AC_DEFUN([gl_HEADER_SYS_SOCKET],
fi
if test $HAVE_STRUCT_SOCKADDR_STORAGE = 0 || test $HAVE_SA_FAMILY_T = 0 \
|| test $HAVE_STRUCT_SOCKADDR_STORAGE_SS_FAMILY = 0; then
- SYS_SOCKET_H='sys/socket.h'
+ GL_GENERATE_SYS_SOCKET_H=true
fi
gl_PREREQ_SYS_H_WINSOCK2
@@ -95,6 +96,8 @@ AC_DEFUN([gl_HEADER_SYS_SOCKET],
#include <sys/socket.h>
]], [socket connect accept bind getpeername getsockname getsockopt
listen recv send recvfrom sendto setsockopt shutdown accept4])
+
+ AC_REQUIRE([AC_C_RESTRICT])
])
AC_DEFUN([gl_PREREQ_SYS_H_SOCKET],
@@ -104,17 +107,11 @@ AC_DEFUN([gl_PREREQ_SYS_H_SOCKET],
gl_CHECK_NEXT_HEADERS([sys/socket.h])
if test $ac_cv_header_sys_socket_h = yes; then
HAVE_SYS_SOCKET_H=1
- HAVE_WS2TCPIP_H=0
else
HAVE_SYS_SOCKET_H=0
- if test $ac_cv_header_ws2tcpip_h = yes; then
- HAVE_WS2TCPIP_H=1
- else
- HAVE_WS2TCPIP_H=0
- fi
fi
AC_SUBST([HAVE_SYS_SOCKET_H])
- AC_SUBST([HAVE_WS2TCPIP_H])
+ gl_PREREQ_SYS_H_WS2TCPIP
])
# Common prerequisites of the <sys/socket.h> replacement and of the
@@ -142,32 +139,65 @@ AC_DEFUN([gl_PREREQ_SYS_H_WINSOCK2],
AC_SUBST([HAVE_WINSOCK2_H])
])
+# Common prerequisites of the <sys/socket.h> replacement and of the
+# <arpa/inet.h> replacement.
+# Sets and substitutes HAVE_WS2TCPIP_H.
+AC_DEFUN([gl_PREREQ_SYS_H_WS2TCPIP],
+[
+ AC_REQUIRE([gl_CHECK_SOCKET_HEADERS])
+ if test $ac_cv_header_sys_socket_h = yes; then
+ HAVE_WS2TCPIP_H=0
+ else
+ if test $ac_cv_header_ws2tcpip_h = yes; then
+ HAVE_WS2TCPIP_H=1
+ else
+ HAVE_WS2TCPIP_H=0
+ fi
+ fi
+ AC_SUBST([HAVE_WS2TCPIP_H])
+])
+
+# gl_SYS_SOCKET_MODULE_INDICATOR([modulename])
+# sets the shell variable that indicates the presence of the given module
+# to a C preprocessor expression that will evaluate to 1.
+# This macro invocation must not occur in macros that are AC_REQUIREd.
AC_DEFUN([gl_SYS_SOCKET_MODULE_INDICATOR],
[
- dnl Use AC_REQUIRE here, so that the default settings are expanded once only.
- AC_REQUIRE([gl_SYS_SOCKET_H_DEFAULTS])
+ dnl Ensure to expand the default settings once only.
+ gl_SYS_SOCKET_H_REQUIRE_DEFAULTS
gl_MODULE_INDICATOR_SET_VARIABLE([$1])
dnl Define it also as a C macro, for the benefit of the unit tests.
gl_MODULE_INDICATOR_FOR_TESTS([$1])
])
+# Initializes the default values for AC_SUBSTed shell variables.
+# This macro must not be AC_REQUIREd. It must only be invoked, and only
+# outside of macros or in macros that are not AC_REQUIREd.
+AC_DEFUN([gl_SYS_SOCKET_H_REQUIRE_DEFAULTS],
+[
+ m4_defun(GL_MODULE_INDICATOR_PREFIX[_SYS_SOCKET_H_MODULE_INDICATOR_DEFAULTS], [
+ gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_SOCKET])
+ gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_CONNECT])
+ gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_ACCEPT])
+ gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_BIND])
+ gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_GETPEERNAME])
+ gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_GETSOCKNAME])
+ gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_GETSOCKOPT])
+ gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_LISTEN])
+ gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_RECV])
+ gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_SEND])
+ gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_RECVFROM])
+ gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_SENDTO])
+ gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_SETSOCKOPT])
+ gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_SHUTDOWN])
+ gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_ACCEPT4])
+ ])
+ m4_require(GL_MODULE_INDICATOR_PREFIX[_SYS_SOCKET_H_MODULE_INDICATOR_DEFAULTS])
+ AC_REQUIRE([gl_SYS_SOCKET_H_DEFAULTS])
+])
+
AC_DEFUN([gl_SYS_SOCKET_H_DEFAULTS],
[
- GNULIB_SOCKET=0; AC_SUBST([GNULIB_SOCKET])
- GNULIB_CONNECT=0; AC_SUBST([GNULIB_CONNECT])
- GNULIB_ACCEPT=0; AC_SUBST([GNULIB_ACCEPT])
- GNULIB_BIND=0; AC_SUBST([GNULIB_BIND])
- GNULIB_GETPEERNAME=0; AC_SUBST([GNULIB_GETPEERNAME])
- GNULIB_GETSOCKNAME=0; AC_SUBST([GNULIB_GETSOCKNAME])
- GNULIB_GETSOCKOPT=0; AC_SUBST([GNULIB_GETSOCKOPT])
- GNULIB_LISTEN=0; AC_SUBST([GNULIB_LISTEN])
- GNULIB_RECV=0; AC_SUBST([GNULIB_RECV])
- GNULIB_SEND=0; AC_SUBST([GNULIB_SEND])
- GNULIB_RECVFROM=0; AC_SUBST([GNULIB_RECVFROM])
- GNULIB_SENDTO=0; AC_SUBST([GNULIB_SENDTO])
- GNULIB_SETSOCKOPT=0; AC_SUBST([GNULIB_SETSOCKOPT])
- GNULIB_SHUTDOWN=0; AC_SUBST([GNULIB_SHUTDOWN])
- GNULIB_ACCEPT4=0; AC_SUBST([GNULIB_ACCEPT4])
HAVE_STRUCT_SOCKADDR_STORAGE=1; AC_SUBST([HAVE_STRUCT_SOCKADDR_STORAGE])
HAVE_STRUCT_SOCKADDR_STORAGE_SS_FAMILY=1;
AC_SUBST([HAVE_STRUCT_SOCKADDR_STORAGE_SS_FAMILY])