From c5c35cb2ddcd7ba439ce209ace634bf47e261e9e Mon Sep 17 00:00:00 2001
From: Adrian Bunk <bunk@debian.org>
Date: Tue, 12 Oct 2021 09:21:32 +0100
Subject: [PATCH] HACK: QVTKOpenGLWindow.cxx: Define GL_BACK_{LEFT,RIGHT} for
 Qt with OpenGL ES

Gbp-Pq: Name 83_allow_gles_platforms.patch
---
 GUISupport/Qt/QVTKOpenGLWindow.cxx | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/GUISupport/Qt/QVTKOpenGLWindow.cxx b/GUISupport/Qt/QVTKOpenGLWindow.cxx
index 335feb58..a12b1af3 100644
--- a/GUISupport/Qt/QVTKOpenGLWindow.cxx
+++ b/GUISupport/Qt/QVTKOpenGLWindow.cxx
@@ -35,6 +35,11 @@
 #include "vtkObjectFactory.h"
 #include "vtkOpenGLState.h"
 
+#ifndef GL_BACK_LEFT
+#define GL_BACK_LEFT GL_BACK
+#define GL_BACK_RIGHT GL_BACK
+#endif
+
 QVTKOpenGLWindow::QVTKOpenGLWindow(QOpenGLWindow::UpdateBehavior ub, QWindow* p)
   : QVTKOpenGLWindow(vtkSmartPointer<vtkGenericOpenGLRenderWindow>::New(), nullptr, ub, p)
 {
-- 
2.30.2