$OpenBSD: patch-base_third_party_libevent_event-config_h,v 1.4 2018/05/04 07:14:57 robert Exp $
Index: base/third_party/libevent/event-config.h
--- base/third_party/libevent/event-config.h.orig
+++ base/third_party/libevent/event-config.h
@@ -15,6 +15,8 @@
 #include "base/third_party/libevent/linux/event-config.h"
 #elif defined(__FreeBSD__)
 #include "base/third_party/libevent/freebsd/event-config.h"
+#elif defined(__OpenBSD__)
+#include "base/third_party/libevent/openbsd/event-config.h"
 #elif defined(__sun)
 #include "base/third_party/libevent/solaris/event-config.h"
 #elif defined(_AIX)
