From 4b12265ae5d324b942698a3177e1d8b1749414d7 Mon Sep 17 00:00:00 2001
From: James Le Cuirot <chewi@gentoo.org>
Date: Tue, 2 Nov 2021 20:59:51 +0000
Subject: [PATCH] Add missing cstddef includes for NULL

Fixes https://github.com/debauchee/barrier/issues/1366.
---
 doc/newsfragments/gcc-11-build.bugfix | 1 +
 src/lib/base/Event.h                  | 2 ++
 2 files changed, 3 insertions(+)
 create mode 100644 doc/newsfragments/gcc-11-build.bugfix

diff --git a/doc/newsfragments/gcc-11-build.bugfix b/doc/newsfragments/gcc-11-build.bugfix
new file mode 100644
index 00000000..255f5365
--- /dev/null
+++ b/doc/newsfragments/gcc-11-build.bugfix
@@ -0,0 +1 @@
+Fixed build on GCC 11.2 (https://github.com/debauchee/barrier/issues/1366).
diff --git a/src/lib/base/Event.h b/src/lib/base/Event.h
index 38a2cf11..cb00dccb 100644
--- a/src/lib/base/Event.h
+++ b/src/lib/base/Event.h
@@ -21,6 +21,8 @@
 #include "common/basic_types.h"
 #include "common/stdmap.h"
 
+#include <cstddef>
+
 class EventData {
 public:
     EventData() { }