$OpenBSD: patch-main_cc,v 1.1 2018/12/01 00:15:36 naddy Exp $

Index: main.cc
--- main.cc.orig
+++ main.cc
@@ -18,6 +18,7 @@
 */
 
 #include <stdio.h>
+#include <stdlib.h>
 #include <signal.h>
 
 #include "main.h"
