enh: guard cmake policy to support old cmake ver

LLNL · Jan 4, 2017 · 54b343c · 54b343c
1 parent 9c8f3eb
commit 54b343c
Showing 1 changed file with 4 additions and 1 deletion.
diff --git a/src/CMakeLists.txt b/src/CMakeLists.txt
@@ -49,7 +49,10 @@ cmake_minimum_required(VERSION 3.0)
 # avoid default mac osx rpath settings for cmake 3.0
 cmake_policy(SET CMP0042 OLD)
 # cmake var deref policy
-cmake_policy(SET CMP0054 OLD)
+if(POLICY CMP0054)
+  cmake_policy(SET CMP0054 OLD)
+endif()
+
 
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 # Conduit