From 642e12ed9f96b540bab2fe5a36231771e16c42c8 Mon Sep 17 00:00:00 2001
From: Sergey Borovkov <sergey.borovkov@wireload.net>
Date: Sun, 16 Oct 2016 12:40:22 +0200
Subject: [PATCH] qt: Fix failing build on RPI

https://bugzilla.gnome.org/show_bug.cgi?id=773026
---
 ext/qt/qtwindow.cc | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/ext/qt/qtwindow.cc b/ext/qt/qtwindow.cc
index 4702891f1f..c3fd564dfb 100644
--- a/ext/qt/qtwindow.cc
+++ b/ext/qt/qtwindow.cc
@@ -34,6 +34,11 @@
 #include <QtQuick/QQuickWindow>
 #include <QOpenGLFramebufferObject>
 
+/* compatability definitions... */
+#ifndef GL_READ_FRAMEBUFFER
+#define GL_READ_FRAMEBUFFER 0x8CA8
+#endif
+
 /**
  * SECTION:
  *