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[gnulib.git] / m4 / getcwd.m4

diff --git a/m4/getcwd.m4 b/m4/getcwd.m4
index abbb0dc..ea10fb6 100644 (file)
--- a/m4/getcwd.m4
+++ b/m4/getcwd.m4
@@ -1,13 +1,13 @@
 # getcwd.m4 - check for working getcwd that is compatible with glibc
 
-# Copyright (C) 2001, 2003, 2004, 2005, 2006, 2007, 2009 Free Software
+# Copyright (C) 2001, 2003, 2004, 2005, 2006, 2007, 2009, 2010 Free Software
 # Foundation, Inc.
 # This file is free software; the Free Software Foundation
 # gives unlimited permission to copy and/or distribute it,
 # with or without modifications, as long as this notice is preserved.
 
 # Written by Paul Eggert.
-# serial 2
+# serial 3
 
 AC_DEFUN([gl_FUNC_GETCWD_NULL],
   [
@@ -27,7 +27,13 @@ AC_DEFUN([gl_FUNC_GETCWD_NULL],
            else
              {
                char *f = getcwd (NULL, 0);
-               return ! (f && f[0] == '/' && !f[1]);
+               if (! f)
+                 return 2;
+               if (f[0] != '/')
+                 return 3;
+               if (f[1] != '\0')
+                 return 4;
+               return 0;
              }
 #endif
          ]])],