dirfd: Avoid link error on AIX 7.1.

[gnulib.git] / m4 / glob.m4

diff --git a/m4/glob.m4 b/m4/glob.m4
index 767c54d..545c37c 100644 (file)
--- a/m4/glob.m4
+++ b/m4/glob.m4
@@ -1,5 +1,5 @@
-# glob.m4 serial 7
-dnl Copyright (C) 2005, 2006 Free Software Foundation, Inc.
+# 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.
@@ -27,8 +27,8 @@ AC_DEFUN([gl_GLOB],
 [     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])])
+        [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
@@ -71,9 +71,16 @@ if (glob ("conf*-globtest", 0, NULL, &found) == GLOB_NOMATCH) return 1;]]),
 
 # Prerequisites of lib/glob.*.
 AC_DEFUN([gl_PREREQ_GLOB],
-[ AC_REQUIRE([gl_CHECK_TYPE_STRUCT_DIRENT_D_TYPE])dnl
+[
+  AC_REQUIRE([gl_CHECK_TYPE_STRUCT_DIRENT_D_TYPE])dnl
   AC_REQUIRE([AC_C_RESTRICT])dnl
-  AC_REQUIRE([AC_GNU_SOURCE])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
-  :])
+  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
+])