$OpenBSD: patch-libhb_fifo_c,v 1.3 2020/02/01 01:03:51 bcallah Exp $

Add OpenBSD where appropriate.

Index: libhb/fifo.c
--- libhb/fifo.c.orig
+++ libhb/fifo.c
@@ -16,7 +16,7 @@
 #endif
 
 #ifndef SYS_DARWIN
-#if defined( SYS_FREEBSD ) || defined ( __FreeBSD__ )
+#if defined( SYS_FREEBSD ) || defined ( __FreeBSD__ ) || defined ( __OpenBSD__ )
 #include <stdlib.h>
 #else
 #include <malloc.h>
