$OpenBSD: patch-src_logger_cpp,v 1.1 2018/12/02 17:56:34 naddy Exp $

Index: src/logger.cpp
--- src/logger.cpp.orig
+++ src/logger.cpp
@@ -5,6 +5,10 @@
 
 #include <iostream>
 
+extern "C" {
+#include <stdlib.h>
+}
+
 #include "logger.h"
 #include "util.h"
 
