From 162252cc01546cfb28cd90b8d4953d1bf18488a1 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 d57e96a2ec5..68d4e4d1e49 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