Better CMake policy detection

- thanks to Rebecca Palmer for suggesting this!

diff --git a/CMakeLists.txt b/CMakeLists.txt
index 505538c1afd3921bff61957d2920cd91877e7f8c..ad1fb0fb901f19a1b65e8368fb58cf8966473632 100644 (file)
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -6,10 +6,12 @@ include (CheckCXXSourceCompiles)
 include (CheckIncludeFile)
 
 if(COMMAND cmake_policy)
-    if(${CMAKE_MAJOR_VERSION} GREATER 2) # version 3 or higher
-        cmake_policy(SET CMP0054 NEW)
-        cmake_policy(SET CMP0042 NEW)
-    endif()
+   if(POLICY CMP0054)
+       cmake_policy(SET CMP0054 NEW)
+   endif()
+   if(POLICY CMP0042)
+       cmake_policy(SET CMP0042 NEW)
+   endif()
 endif()
 
 # set this before project()