diff -u ../timidity-0.2i/mix.c ./mix.c
--- ../timidity-0.2i/mix.c	Mon May 20 08:09:46 1996
+++ ./mix.c	Fri Feb  5 11:49:36 1999
@@ -23,7 +23,12 @@
 
 #include <math.h>
 #include <stdio.h>
+
+#ifdef __OpenBSD__
+#include <stdlib.h>
+#else
 #include <malloc.h>
+#endif
 
 #include "config.h"
 #include "common.h"
