$NetBSD$

--- diff.c.orig	2010-04-19 20:45:00.000000000 +0000
+++ diff.c
@@ -26,7 +26,7 @@
  * $FreeBSD: src/usr.bin/csup/diff.c,v 1.1 2010/03/02 07:26:07 lulf Exp $
  */
 
-#include <sys/limits.h>
+#include <limits.h>
 
 #include <assert.h>
 #include <err.h>
