From 754f63af1a1f027fbfd213c190b937f66dadf89f Mon Sep 17 00:00:00 2001
From: Hamish Milne <hamishmilne83@gmail.com>
Date: Mon, 30 Dec 2019 10:23:20 +0000
Subject: [PATCH] Don't require cmake 3.15

---
 CMakeLists.txt | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/CMakeLists.txt b/CMakeLists.txt
index 0d42aba93..f986a39af 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -1,6 +1,8 @@
 # CMake 3.8 required for 17 to be a valid value for CXX_STANDARD
 cmake_minimum_required(VERSION 3.8)
-cmake_policy(SET CMP0092 NEW)
+if (${CMAKE_VERSION} VERSION_GREATER_EQUAL 3.15)
+    cmake_policy(SET CMP0092 NEW)
+endif ()
 list(APPEND CMAKE_MODULE_PATH "${CMAKE_CURRENT_SOURCE_DIR}/CMakeModules")
 list(APPEND CMAKE_MODULE_PATH "${CMAKE_CURRENT_SOURCE_DIR}/externals/cmake-modules")
 include(DownloadExternals)