From 0e3ac7e07889b6f7ac5f8af3cf2d853a7c816ced Mon Sep 17 00:00:00 2001
From: James Turner <james@flightgear.org>
Date: Fri, 5 Jun 2020 13:32:36 +0100
Subject: [PATCH] Set CMake OpenGL VND policy

---
 CMakeLists.txt | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/CMakeLists.txt b/CMakeLists.txt
index 2360c31c..7fcb66c5 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -10,6 +10,12 @@ if(COMMAND cmake_policy)
    if(POLICY CMP0067)
        cmake_policy(SET CMP0067 NEW)
    endif()
+    
+  # OpenGL VND policy : use the old definition for now, until we can audit this
+  if(POLICY CMP0072)
+        cmake_policy(SET CMP0071 OLD)
+  endif()
+
    if(POLICY CMP0093)
        cmake_policy(SET CMP0093 NEW)
    endif()