From 86ff18e0e67243daf81ba167d3b8deb47a535a6c Mon Sep 17 00:00:00 2001
From: Scott Giese <scttgs0@gmail.com>
Date: Thu, 18 Feb 2021 23:12:31 -0600
Subject: [PATCH] Replay: Resolve missing mutex header

---
 src/Aircraft/replay.hxx | 1 +
 1 file changed, 1 insertion(+)

diff --git a/src/Aircraft/replay.hxx b/src/Aircraft/replay.hxx
index c3988e699..8d307136f 100644
--- a/src/Aircraft/replay.hxx
+++ b/src/Aircraft/replay.hxx
@@ -28,6 +28,7 @@
 #  include <config.h>
 #endif
 
+#include <mutex>
 #include <simgear/compiler.h>
 
 #include <simgear/math/sg_types.hxx>