--- strace-4.5.12/system.c.oorig	2005-06-01 21:22:06.000000000 +0200
+++ strace-4.5.12/system.c	2006-09-28 18:18:31.000000000 +0200
@@ -1572,7 +1572,9 @@
 	{ CTL_KERN, "CTL_KERN" },
 	{ CTL_VM, "CTL_VM" },
 	{ CTL_NET, "CTL_NET" },
+#ifdef CTL_PROC
 	{ CTL_PROC, "CTL_PROC" },
+#endif
 	{ CTL_FS, "CTL_FS" },
 	{ CTL_DEBUG, "CTL_DEBUG" },
 	{ CTL_DEV, "CTL_DEV" },