Assume ANSI C <string.h>, <stdlib.h>.

[gnulib.git] / m4 / getcwd.m4

diff --git a/m4/getcwd.m4 b/m4/getcwd.m4
index 1e1b80e..159aa2b 100644 (file)
--- a/m4/getcwd.m4
+++ b/m4/getcwd.m4
@@ -1,6 +1,6 @@
 # getcwd.m4 - check whether getcwd (NULL, 0) allocates memory for result
 
-# Copyright 2001 Free Software Foundation, Inc.
+# Copyright (C) 2001, 2003 Free Software Foundation, Inc.
 
 # This program is free software; you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
@@ -19,14 +19,13 @@
 # Written by Paul Eggert.
 
 AC_DEFUN([AC_FUNC_GETCWD_NULL],
-  [AC_CHECK_HEADERS(stdlib.h unistd.h)
+  [
+   AC_CHECK_HEADERS_ONCE(unistd.h)
    AC_CACHE_CHECK([whether getcwd (NULL, 0) allocates memory for result],
      [ac_cv_func_getcwd_null],
      [AC_TRY_RUN(
         [
-#       ifdef HAVE_STDLIB_H
-#        include <stdlib.h>
-#       endif
+#       include <stdlib.h>
 #       ifdef HAVE_UNISTD_H
 #        include <unistd.h>
 #       endif