From 26f5d385d557e677ef3c0600343a9997d3bebe3c Mon Sep 17 00:00:00 2001
From: Chris Robinson <chris.kcat@gmail.com>
Date: Thu, 21 Jan 2016 06:18:54 -0800
Subject: Only set cmake policy CMP0042 if it's valid

---
 CMakeLists.txt | 8 +++++---
 1 file changed, 5 insertions(+), 3 deletions(-)

(limited to 'CMakeLists.txt')

diff --git a/CMakeLists.txt b/CMakeLists.txt
index dac8d998..847adc7c 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -5,9 +5,11 @@ CMAKE_MINIMUM_REQUIRED(VERSION 2.6)
 PROJECT(OpenAL)
 
 IF(COMMAND CMAKE_POLICY)
-  CMAKE_POLICY(SET CMP0003 NEW)
-  CMAKE_POLICY(SET CMP0005 NEW)
-  CMAKE_POLICY(SET CMP0042 NEW)
+    CMAKE_POLICY(SET CMP0003 NEW)
+    CMAKE_POLICY(SET CMP0005 NEW)
+    IF(POLICY CMP0042)
+        CMAKE_POLICY(SET CMP0042 NEW)
+    ENDIF(POLICY CMP0042)
 ENDIF(COMMAND CMAKE_POLICY)
 
 SET(CMAKE_MODULE_PATH "${OpenAL_SOURCE_DIR}/cmake")
-- 
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