From f067d3b5d67bcc7ee1bfec9b85d8dc8269b490c6 Mon Sep 17 00:00:00 2001
From: Dirk Hohndel <dirk@hohndel.org>
Date: Sun, 24 Dec 2017 13:33:06 -0800
Subject: Fix build for cmake before 3.10

Signed-off-by: Dirk Hohndel <dirk@hohndel.org>
---
 CMakeLists.txt | 7 +++++--
 1 file changed, 5 insertions(+), 2 deletions(-)

diff --git a/CMakeLists.txt b/CMakeLists.txt
index c5d7dd89c..011d4d776 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -6,8 +6,11 @@
 project(Subsurface)
 cmake_minimum_required(VERSION 2.8.11)
 
-# don't process generated files
-cmake_policy(SET CMP0071 OLD)
+# don't process generated files - this is new in 3.10 - but
+# VERSION_GREATER_EQUAL did get added until 3.7
+if(${CMAKE_VERSION} VERSION_EQUAL "3.10.0" OR ${CMAKE_VERSION} VERSION_GREATER "3.10.0")
+	cmake_policy(SET CMP0071 OLD)
+endif()
 
 # global settings
 
-- 
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