--- zzzz-none-000/linux-2.6.13.1/arch/mips/kernel/irixsig.c	2005-09-10 02:42:58.000000000 +0000
+++ ohio-7170-487/linux-2.6.13.1/arch/mips/kernel/irixsig.c	2007-06-13 08:22:30.000000000 +0000
@@ -5,6 +5,7 @@
  * Copyright (C) 1997 - 2000 Ralf Baechle (ralf@gnu.org)
  * Copyright (C) 2000 Silicon Graphics, Inc.
  */
+#include <linux/config.h>
 #include <linux/kernel.h>
 #include <linux/sched.h>
 #include <linux/mm.h>