X-Git-Url: http://erislabs.net/gitweb/?a=blobdiff_plain;f=lib%2Fftell.c;h=4ad13c9f486f1a5065a9365897a2c710806f1c8c;hb=5191b3546cfb6c163228c23f214e325ddf60d46f;hp=2bcc97edde2885a65d53d3192244844de33f0a32;hpb=b2e2010c7c902235b5efb5bd3c6529f61b093aa4;p=gnulib.git

diff --git a/lib/ftell.c b/lib/ftell.c
index 2bcc97edd..4ad13c9f4 100644
--- a/lib/ftell.c
+++ b/lib/ftell.c
@@ -1,5 +1,5 @@
 /* An ftell() function that works around platform bugs.
-   Copyright (C) 2007, 2008, 2009, 2010 Free Software Foundation, Inc.
+   Copyright (C) 2007-2013 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
@@ -20,16 +20,15 @@
 #include <stdio.h>
 
 #include <errno.h>
-/* Get off_t.  */
-#include <unistd.h>
+#include <limits.h>
 
 long
 ftell (FILE *fp)
 {
   /* Use the replacement ftello function with all its workarounds.  */
   off_t offset = ftello (fp);
-  if (offset == (long)offset)
-    return (long)offset;
+  if (LONG_MIN <= offset && offset <= LONG_MAX)
+    return /* (long) */ offset;
   else
     {
       errno = EOVERFLOW;