From c829b7c04440d66e5adcf63245ac245a318e4d35 Mon Sep 17 00:00:00 2001
From: tamasmeszaros <meszaros.q@gmail.com>
Date: Fri, 23 Oct 2020 16:28:14 +0200
Subject: [PATCH] Use legacy OpenGL linkage on Linux

GLVND based libOpenGL.so is not present on every supported Linux, despite that appimage exclude list says so. It should be enough to just link to system specific libGL.so.
---
 CMakeLists.txt | 1 +
 1 file changed, 1 insertion(+)

diff --git a/CMakeLists.txt b/CMakeLists.txt
index d57e96a2ec..68d4e4d1e4 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -393,6 +393,7 @@ endif ()
 
 find_package(PNG REQUIRED)
 
+set(OpenGL_GL_PREFERENCE "LEGACY")
 find_package(OpenGL REQUIRED)
 
 # Find glew or use bundled version