$NetBSD$

--- musicout.c.orig	1994-01-05 04:39:27.000000000 +0000
+++ musicout.c
@@ -58,6 +58,10 @@ musicout.c
 #include        "common.h"
 #include        "decoder.h"
 
+#include <stdlib.h>
+
+static void usage();
+
 /********************************************************************
 /*
 /*        This part contains the MPEG I decoder for Layers I & II.
