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# glob.m4 serial 10
dnl Copyright (C) 2005-2007, 2009-2010 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_SUBSTITUTE],
[
gl_PREREQ_GLOB
GLOB_H=glob.h
AC_LIBOBJ([glob])
AC_SUBST([GLOB_H])
])
AC_DEFUN([gl_GLOB],
[ GLOB_H=
AC_CHECK_HEADERS([glob.h], [], [GLOB_H=glob.h])
if test -z "$GLOB_H"; then
AC_CACHE_CHECK([for GNU glob interface version 1],
[gl_cv_gnu_glob_interface_version_1],
[ AC_COMPILE_IFELSE(
[[#include <gnu-versions.h>
char a[_GNU_GLOB_INTERFACE_VERSION == 1 ? 1 : -1];]],
[gl_cv_gnu_glob_interface_version_1=yes],
[gl_cv_gnu_glob_interface_version_1=no])])
if test "$gl_cv_gnu_glob_interface_version_1" = "no"; then
GLOB_H=glob.h
fi
fi
if test -z "$GLOB_H"; then
AC_CACHE_CHECK([whether glob lists broken symlinks],
[gl_cv_glob_lists_symlinks],
[ if ln -s conf-doesntexist conf$$-globtest 2>/dev/null; then
gl_cv_glob_lists_symlinks=maybe
else
# If we can't make a symlink, then we cannot test this issue. Be
# pessimistic about this.
gl_cv_glob_lists_symlinks=no
fi
if test $gl_cv_glob_lists_symlinks = maybe; then
AC_RUN_IFELSE(
AC_LANG_PROGRAM(
[[#include <stddef.h>
#include <glob.h>]],
[[glob_t found;
if (glob ("conf*-globtest", 0, NULL, &found) == GLOB_NOMATCH) return 1;]]),
[gl_cv_glob_lists_symlinks=yes],
[gl_cv_glob_lists_symlinks=no], [gl_cv_glob_lists_symlinks=no])
fi])
if test $gl_cv_glob_lists_symlinks = no; then
GLOB_H=glob.h
fi
fi
rm -f conf$$-globtest
if test -n "$GLOB_H"; then
gl_GLOB_SUBSTITUTE
fi
])
# Prerequisites of lib/glob.*.
AC_DEFUN([gl_PREREQ_GLOB],
[
AC_REQUIRE([gl_CHECK_TYPE_STRUCT_DIRENT_D_TYPE])dnl
AC_REQUIRE([AC_C_RESTRICT])dnl
AC_REQUIRE([AC_USE_SYSTEM_EXTENSIONS])dnl
AC_CHECK_HEADERS_ONCE([sys/cdefs.h unistd.h])dnl
if test $ac_cv_header_sys_cdefs_h = yes; then
HAVE_SYS_CDEFS_H=1
else
HAVE_SYS_CDEFS_H=0
fi
AC_SUBST([HAVE_SYS_CDEFS_H])
AC_CHECK_FUNCS_ONCE([fstatat getlogin_r getpwnam_r])dnl
])
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