From be3ce9756092bfdc0f3f348915c3fa106e8e7288 Mon Sep 17 00:00:00 2001
From: degasus <wickmarkus@web.de>
Date: Wed, 9 May 2018 09:08:22 +0200
Subject: [PATCH] CMake: Prefer GLVND for OpenGL.

We have to decide if we want to link to
libGL.so -- legacy
libOpenGL.so -- GLVND

As we use xxxGetProcAddress, we don't care about feature
levels of the linked library, so we're very fine with the
new way.
---
 CMakeLists.txt | 1 +
 1 file changed, 1 insertion(+)

diff --git a/CMakeLists.txt b/CMakeLists.txt
index 77b9913253..0217c494c2 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -410,6 +410,7 @@ endif()
 include(CheckLib)
 include(CheckCXXSourceRuns)
 
+set(OpenGL_GL_PREFERENCE GLVND)
 find_package(OpenGL)
 if (OPENGL_GL)
   include_directories(${OPENGL_INCLUDE_DIR})