From 2bc091fc05f22b89d6019a7440f179cd1fcca3bb Mon Sep 17 00:00:00 2001
From: AnyOldName3 <krizdjali@gmail.com>
Date: Sun, 14 May 2023 22:51:16 +0100
Subject: [PATCH] Include missing header

I thought I'd seen this class defined in one of the existing headers
with a different name, but I was muddling its forward declaration and a
different class being in a non-obvious header.
---
 components/sceneutil/glextensions.cpp | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/components/sceneutil/glextensions.cpp b/components/sceneutil/glextensions.cpp
index eb7783c45f..310823a8ea 100644
--- a/components/sceneutil/glextensions.cpp
+++ b/components/sceneutil/glextensions.cpp
@@ -1,5 +1,7 @@
 #include "glextensions.hpp"
 
+#include <osg/GraphicsContext>
+
 namespace SceneUtil
 {
     namespace