From bdf4441b87c8167dc3316a3a761cf9c15208de90 Mon Sep 17 00:00:00 2001
From: Antoine Fontaine <antoine.fontaine@epfl.ch>
Date: Sun, 21 Mar 2021 01:58:56 +0100
Subject: [PATCH] Force legacy GDK backend for GTK3

---
 radiant/main.cpp | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/radiant/main.cpp b/radiant/main.cpp
index dad69f5c..83dc58f9 100644
--- a/radiant/main.cpp
+++ b/radiant/main.cpp
@@ -503,6 +503,10 @@ void user_shortcuts_save(){
 }
 
 int main( int argc, char* argv[] ){
+#if GTK_TARGET == 3
+	// HACK: force legacy GL backend as we don't support GL3 yet
+	setenv("GDK_GL", "LEGACY", 0);
+#endif
 	crt_init();
 
 	streams_init();
-- 
2.39.2