X-Git-Url: https://pintos-os.org/cgi-bin/gitweb.cgi?a=blobdiff_plain;f=m4%2Fgetcwd.m4;h=70980567d756d4ec73504bb03d0d73deb3bad139;hb=eba8aa98605df75d35d0f70f516847f3ddec26d0;hp=df9c96869fd3646b7b0e27bf0af0a41915088feb;hpb=b2e2010c7c902235b5efb5bd3c6529f61b093aa4;p=pspp

diff --git a/m4/getcwd.m4 b/m4/getcwd.m4
index df9c96869f..70980567d7 100644
--- a/m4/getcwd.m4
+++ b/m4/getcwd.m4
@@ -1,13 +1,12 @@
 # getcwd.m4 - check for working getcwd that is compatible with glibc
 
-# Copyright (C) 2001, 2003, 2004, 2005, 2006, 2007, 2009, 2010 Free Software
-# Foundation, Inc.
+# Copyright (C) 2001, 2003-2007, 2009-2011 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 +26,13 @@ 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
          ]])],