--- system.c.orig	2006-10-02 01:01:55.000000000 +0200
+++ system.c	2006-10-02 01:02:19.000000000 +0200
@@ -78,6 +78,7 @@
 #endif
 
 #include <linux/sysctl.h>
+#define CTL_PROC 4 /* not that we should use those anyway */
 
 static const struct xlat mount_flags[] = {
 	{ MS_MGC_VAL,	"MS_MGC_VAL"	},