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Diffstat (limited to 'gnulib-m4/absolute-header.m4')
| -rw-r--r-- | gnulib-m4/absolute-header.m4 | 102 |
1 files changed, 0 insertions, 102 deletions
diff --git a/gnulib-m4/absolute-header.m4 b/gnulib-m4/absolute-header.m4 deleted file mode 100644 index bc19dfc..0000000 --- a/gnulib-m4/absolute-header.m4 +++ /dev/null @@ -1,102 +0,0 @@ -# absolute-header.m4 serial 16 -dnl Copyright (C) 2006-2015 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 Derek Price. - -# gl_ABSOLUTE_HEADER(HEADER1 HEADER2 ...) -# --------------------------------------- -# Find the absolute name of a header file, testing first if the header exists. -# If the header were sys/inttypes.h, this macro would define -# ABSOLUTE_SYS_INTTYPES_H to the '""' quoted absolute name of sys/inttypes.h -# in config.h -# (e.g. '#define ABSOLUTE_SYS_INTTYPES_H "///usr/include/sys/inttypes.h"'). -# The three "///" are to pacify Sun C 5.8, which otherwise would say -# "warning: #include of /usr/include/... may be non-portable". -# Use '""', not '<>', so that the /// cannot be confused with a C99 comment. -# Note: This macro assumes that the header file is not empty after -# preprocessing, i.e. it does not only define preprocessor macros but also -# provides some type/enum definitions or function/variable declarations. -AC_DEFUN([gl_ABSOLUTE_HEADER], -[AC_REQUIRE([AC_CANONICAL_HOST]) -AC_LANG_PREPROC_REQUIRE()dnl -dnl FIXME: gl_absolute_header and ac_header_exists must be used unquoted -dnl until we can assume autoconf 2.64 or newer. -m4_foreach_w([gl_HEADER_NAME], [$1], - [AS_VAR_PUSHDEF([gl_absolute_header], - [gl_cv_absolute_]m4_defn([gl_HEADER_NAME]))dnl - AC_CACHE_CHECK([absolute name of <]m4_defn([gl_HEADER_NAME])[>], - m4_defn([gl_absolute_header]), - [AS_VAR_PUSHDEF([ac_header_exists], - [ac_cv_header_]m4_defn([gl_HEADER_NAME]))dnl - AC_CHECK_HEADERS_ONCE(m4_defn([gl_HEADER_NAME]))dnl - if test AS_VAR_GET(ac_header_exists) = yes; then - gl_ABSOLUTE_HEADER_ONE(m4_defn([gl_HEADER_NAME])) - fi - AS_VAR_POPDEF([ac_header_exists])dnl - ])dnl - AC_DEFINE_UNQUOTED(AS_TR_CPP([ABSOLUTE_]m4_defn([gl_HEADER_NAME])), - ["AS_VAR_GET(gl_absolute_header)"], - [Define this to an absolute name of <]m4_defn([gl_HEADER_NAME])[>.]) - AS_VAR_POPDEF([gl_absolute_header])dnl -])dnl -])# gl_ABSOLUTE_HEADER - -# gl_ABSOLUTE_HEADER_ONE(HEADER) -# ------------------------------ -# Like gl_ABSOLUTE_HEADER, except that: -# - it assumes that the header exists, -# - it uses the current CPPFLAGS, -# - it does not cache the result, -# - it is silent. -AC_DEFUN([gl_ABSOLUTE_HEADER_ONE], -[ - AC_REQUIRE([AC_CANONICAL_HOST]) - AC_LANG_CONFTEST([AC_LANG_SOURCE([[#include <]]m4_dquote([$1])[[>]])]) - dnl AIX "xlc -E" and "cc -E" omit #line directives for header files - dnl that contain only a #include of other header files and no - dnl non-comment tokens of their own. This leads to a failure to - dnl detect the absolute name of <dirent.h>, <signal.h>, <poll.h> - dnl and others. The workaround is to force preservation of comments - dnl through option -C. This ensures all necessary #line directives - dnl are present. GCC supports option -C as well. - case "$host_os" in - aix*) gl_absname_cpp="$ac_cpp -C" ;; - *) gl_absname_cpp="$ac_cpp" ;; - esac -changequote(,) - case "$host_os" in - mingw*) - dnl For the sake of native Windows compilers (excluding gcc), - dnl treat backslash as a directory separator, like /. - dnl Actually, these compilers use a double-backslash as - dnl directory separator, inside the - dnl # line "filename" - dnl directives. - gl_dirsep_regex='[/\\]' - ;; - *) - gl_dirsep_regex='\/' - ;; - esac - dnl A sed expression that turns a string into a basic regular - dnl expression, for use within "/.../". - gl_make_literal_regex_sed='s,[]$^\\.*/[],\\&,g' - gl_header_literal_regex=`echo '$1' \ - | sed -e "$gl_make_literal_regex_sed"` - gl_absolute_header_sed="/${gl_dirsep_regex}${gl_header_literal_regex}/"'{ - s/.*"\(.*'"${gl_dirsep_regex}${gl_header_literal_regex}"'\)".*/\1/ - s|^/[^/]|//&| - p - q - }' -changequote([,]) - dnl eval is necessary to expand gl_absname_cpp. - dnl Ultrix and Pyramid sh refuse to redirect output of eval, - dnl so use subshell. - AS_VAR_SET([gl_cv_absolute_]AS_TR_SH([[$1]]), -[`(eval "$gl_absname_cpp conftest.$ac_ext") 2>&AS_MESSAGE_LOG_FD | - sed -n "$gl_absolute_header_sed"`]) -]) |