diff -durN strace-4.5.19.orig/system.c strace-4.5.19/system.c
--- strace-4.5.19.orig/system.c	2009-06-01 11:59:11.000000000 +0200
+++ strace-4.5.19/system.c	2009-10-28 18:47:18.000000000 +0100
@@ -1654,7 +1654,9 @@
 	{ 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" },