$NetBSD$

--- mux.c.orig	1996-06-09 07:32:29.000000000 -0500
+++ mux.c
@@ -35,6 +35,7 @@
 
 #include <stdio.h>
 #include <stdlib.h>
+#include <string.h>
 
 #include "config.h"
 
