diff -Naur kadu.orig/modules/voice/libgsm/src/code.c kadu/modules/voice/libgsm/src/code.c
--- kadu.orig/modules/voice/libgsm/src/code.c	2008-02-12 11:19:33.000000000 +0000
+++ kadu/modules/voice/libgsm/src/code.c	2008-02-12 11:20:47.000000000 +0000
@@ -7,7 +7,7 @@
 /* $Header: /var/cvsroot/gentoo-x86/net-im/kadu/files/voice-gentoo.patch,v 1.1 2008/02/13 01:43:35 cla Exp $ */
 
 #include	"config.h"
-
+#include	<string.h>
 
 #ifdef	HAS_STDLIB_H
 #include	<stdlib.h>