From: Rolf Eike Beer <kde@opensource.sf-tec.de>
Date: Wed, 18 May 2016 06:54:22 +0000 (+0200)
Subject: Simplify checking if CMake policies need to be set
X-Git-Tag: travis-deploy-test~471
X-Git-Url: https://git.quassel-irc.org/?p=quassel.git;a=commitdiff_plain;h=8714e651551428b0fed15b7a98d1be514921af7d

Simplify checking if CMake policies need to be set

Remove the magic knowledge about when a policy was introduced, simply
check if the policy exists.

Closes GH-196.
---

diff --git a/CMakeLists.txt b/CMakeLists.txt
index 38733c63..681cceb7 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -127,12 +127,12 @@ endif()
 
 # Setting COMPILE_DEFINITIONS_<CONFIG> is deprecated since CMake 3.0 in favor of generator expressions.
 # These have existed since CMake 2.8.10; until we depend on that, we have to explicitly enable the old policy.
-if (CMAKE_MAJOR_VERSION GREATER 2)
+if (POLICY CMP0043)
     cmake_policy(SET CMP0043 OLD)
 endif()
 
 # Honor visibility settings for all target types
-if (CMAKE_VERSION VERSION_GREATER 3.3)
+if (POLICY CMP0063)
     cmake_policy(SET CMP0063 NEW)
 endif()