diff -u ../timidity-0.2i/instrum.c ./instrum.c
--- ../timidity-0.2i/instrum.c	Mon May 20 08:15:10 1996
+++ ./instrum.c	Fri Feb  5 11:53:23 1999
@@ -31,7 +31,7 @@
 #include <strings.h>
 #endif
 
-#if defined(__FreeBSD__) || defined (__WIN32__)
+#if defined(__FreeBSD__) || defined (__WIN32__) || defined(__OpenBSD__)
 #include <stdlib.h>
 #else
 #include <malloc.h>
