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# glob.m4 serial 23
dnl Copyright (C) 2005-2007, 2009-2020 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.
# The glob module assumes you want GNU glob, with glob_pattern_p etc,
# rather than vanilla POSIX glob. This means your code should
# always include <glob.h> for the glob prototypes.
AC_DEFUN([gl_GLOB],
[
AC_REQUIRE([gl_GLOB_H])
AC_CHECK_FUNCS_ONCE([glob glob_pattern_p])
if test $ac_cv_func_glob = no; then
HAVE_GLOB=0
else
AC_CACHE_CHECK([for GNU glob interface version 1 or 2],
[gl_cv_gnu_glob_interface_version_1_2],
[ AC_COMPILE_IFELSE([AC_LANG_SOURCE(
[[#include <gnu-versions.h>
char a[_GNU_GLOB_INTERFACE_VERSION == 1 || _GNU_GLOB_INTERFACE_VERSION == 2 ? 1 : -1];]])],
[gl_cv_gnu_glob_interface_version_1_2=yes],
[gl_cv_gnu_glob_interface_version_1_2=no])])
if test "$gl_cv_gnu_glob_interface_version_1_2" = "no"; then
REPLACE_GLOB=1
fi
if test $REPLACE_GLOB = 0; then
AC_CACHE_CHECK([whether glob lists broken symlinks],
[gl_cv_glob_lists_symlinks],
[if test $cross_compiling != yes; then
if ln -s conf-doesntexist conf$$-globtest 2>/dev/null; then
gl_cv_glob_lists_symlinks=maybe
else
# If we can't make a symlink, then we cannot test this issue. Be
# pessimistic about this.
gl_cv_glob_lists_symlinks=no
fi
if test $gl_cv_glob_lists_symlinks = maybe; then
AC_RUN_IFELSE(
[AC_LANG_PROGRAM(
[[#include <stddef.h>
#include <glob.h>]],
[[glob_t found;
if (glob ("conf*-globtest", 0, NULL, &found) == GLOB_NOMATCH)
return 1;
]])],
[gl_cv_glob_lists_symlinks=yes],
[gl_cv_glob_lists_symlinks=no],
[dnl We don't get here.
:
])
fi
rm -f conf$$-globtest
else
gl_cv_glob_lists_symlinks="$gl_cross_guess_normal"
fi
])
case "$gl_cv_glob_lists_symlinks" in
*yes) ;;
*) REPLACE_GLOB=1 ;;
esac
fi
fi
if test $ac_cv_func_glob_pattern_p = no; then
HAVE_GLOB_PATTERN_P=0
else
if test $REPLACE_GLOB = 1; then
REPLACE_GLOB_PATTERN_P=1
fi
fi
if test $HAVE_GLOB = 0 || test $REPLACE_GLOB = 1; then
gl_REPLACE_GLOB_H
fi
])
# Prerequisites of lib/glob.c and lib/globfree.c.
AC_DEFUN([gl_PREREQ_GLOB],
[
AC_REQUIRE([gl_CHECK_TYPE_STRUCT_DIRENT_D_TYPE])
AC_CHECK_HEADERS_ONCE([unistd.h])
AC_CHECK_FUNCS_ONCE([getlogin_r getpwnam_r])
])
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