-# glob.m4 serial 1
-dnl Copyright (C) 2005 Free Software Foundation, Inc.
+# glob.m4 serial 14
+dnl Copyright (C) 2005-2007, 2009-2013 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 your code should
+# 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_DEFINE([GLOB_PREFIX], [[rpl_]],
- [Define to rpl_ if the glob replacement functions and variables
- should be used.])
- AC_SUBST([GLOB_H])
-])
-
AC_DEFUN([gl_GLOB],
[ GLOB_H=
AC_CHECK_HEADERS([glob.h], [], [GLOB_H=glob.h])
if test -z "$GLOB_H"; then
- AC_COMPILE_IFELSE(
+ AC_CACHE_CHECK([for GNU glob interface version 1],
+ [gl_cv_gnu_glob_interface_version_1],
+[ AC_COMPILE_IFELSE([AC_LANG_SOURCE(
[[#include <gnu-versions.h>
-char a[_GNU_GLOB_INTERFACE_VERSION == 1 ? 1 : -1];]],
- [], [GLOB_H=glob.h])
+char a[_GNU_GLOB_INTERFACE_VERSION == 1 ? 1 : -1];]])],
+ [gl_cv_gnu_glob_interface_version_1=yes],
+ [gl_cv_gnu_glob_interface_version_1=no])])
+
+ if test "$gl_cv_gnu_glob_interface_version_1" = "no"; then
+ GLOB_H=glob.h
+ fi
fi
- if test -n "$GLOB_H"; then
- gl_GLOB_SUBSTITUTE
+ if test -z "$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
+
+ AC_SUBST([GLOB_H])
+ AM_CONDITIONAL([GL_GENERATE_GLOB_H], [test -n "$GLOB_H"])
])
# Prerequisites of lib/glob.*.
AC_DEFUN([gl_PREREQ_GLOB],
-[ AC_REQUIRE([gl_CHECK_TYPE_STRUCT_DIRENT_D_TYPE])dnl
- AC_REQUIRE([AC_HEADER_DIRENT])dnl
+[
+ 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
- AC_CHECK_FUNCS_ONCE([getlogin_r getpwnam_r])dnl
- AC_CHECK_HEADERS([sys/cdefs.h], [SYS_CDEFS_H=yes], [SYS_CDEFS_H=no])
-
- dnl Note the reversal of the common HAVE_SYS_CDEFS_H idiom below. In this
- dnl way, #ifndef _SYS_CDEFS_H may be used to include <sys/cdefs.h> both when
- dnl it has been checked for via the GNULIB configure test and found and when
- dnl it has not been checked for, which we can presume means that the <glob.h>
- dnl GNULIB shares with GLIBC is being included as a system header and not as
- dnl part of GNULIB, in which case <sys/cdefs.h> may be assumed.
- if test $SYS_CDEFS_H = no; then
- AC_DEFINE(_SYS_CDEFS_H, 1,
- [Define to `1' if <sys/cdefs.h> is *not* available on this system.])
+ 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
+])