From 84dd0aa1fce03db5319214b0bb57a875b141a747 Mon Sep 17 00:00:00 2001
From: Anton Gladky <gladk@debian.org>
Date: Tue, 10 Mar 2026 06:07:36 +0100
Subject: [PATCH] Add missing GL header

Last-Update: 2024-01-10


Gbp-Pq: Name 100_add_missing_gl_header.patch
---
 GUISupport/Qt/QVTKOpenGLWindow.cxx | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/GUISupport/Qt/QVTKOpenGLWindow.cxx b/GUISupport/Qt/QVTKOpenGLWindow.cxx
index 06b09f00f..ecc1d3ec1 100644
--- a/GUISupport/Qt/QVTKOpenGLWindow.cxx
+++ b/GUISupport/Qt/QVTKOpenGLWindow.cxx
@@ -22,6 +22,8 @@
 #include "vtkObjectFactory.h"
 #include "vtkOpenGLState.h"
 
+#include <GL/gl.h>
+
 VTK_ABI_NAMESPACE_BEGIN
 QVTKOpenGLWindow::QVTKOpenGLWindow(QOpenGLWindow::UpdateBehavior ub, QWindow* p)
   : QVTKOpenGLWindow(vtkSmartPointer<vtkGenericOpenGLRenderWindow>::New(), nullptr, ub, p)
-- 
2.30.2