--- screen.h.orig	2003-08-22 14:28:43.000000000 +0200
+++ screen.h	2007-07-30 10:25:45.000000000 +0200
@@ -22,6 +22,8 @@
  * $Id: screen.h,v 1.12 1994/05/31 12:32:54 mlschroe Exp $ FAU
  */
 
+#include <string.h>
+
 #include "os.h"
 
 #if defined(__STDC__)