From 1b74a4bc8c975d99b27fe23ec2c4185b5b21e496 Mon Sep 17 00:00:00 2001
From: Simon Lees <sflees@suse.de>
Date: Wed, 3 Nov 2021 13:16:39 +1030
Subject: [PATCH] Include <cstddef> for NULL

Fixes #1366
---
 src/lib/base/Event.h | 1 +
 1 file changed, 1 insertion(+)

diff --git a/src/lib/base/Event.h b/src/lib/base/Event.h
index 38a2cf1129..7f4461c914 100644
--- a/src/lib/base/Event.h
+++ b/src/lib/base/Event.h
@@ -18,6 +18,7 @@
 
 #pragma once
 
+#include <cstddef>
 #include "common/basic_types.h"
 #include "common/stdmap.h"