Add separate cmake module for policies

Author: kresan

CMakeLists.txt

@@ -62,15 +62,16 @@ If(NOT _HAS_CXX11_FLAG)
   Message(FATAL_ERROR "The used C++ compiler (${CMAKE_CXX_COMPILER}) does not support C++11. CbmRoot can only be compiled with compilers supporting C++11. Please install such a compiler.")
 EndIf()
 
+# set cmake policies
+include(FairRootCmakePolicies)
+set_fairroot_cmake_policies()
+
 # Load some basic macros which are needed later on
 include(FairMacros)
 include(WriteConfigFile)
 include(Dart)
 include(CheckCompiler)
 
-# set cmake policies
-set_fairroot_cmake_policies()
-
 #Check the compiler and set the compile and link flags
 Check_Compiler()
 

cmake/modules/FairMacros.cmake

@@ -66,24 +66,6 @@ ENDMACRO()
     set(BWhite   "${Esc}[1;37m")
   endif()
 
-################################################################################
-#Sets CMake policies.
-MACRO(set_fairroot_cmake_policies)
-#Find more details to each policy with cmake-- help - policy CMPXXXX
-    foreach(policy
-      CMP0025 # Compiler id for Apple Clang is now AppleClang.
-      CMP0028 # Double colon in target name means ALIAS or IMPORTED target.
-      CMP0042 # MACOSX_RPATH is enabled by default.
-      CMP0048 # The ``project()`` command manages VERSION variables.
-      CMP0054 # Only interpret ``if()`` arguments as variables or keywords when unquoted.
-      CMP0074 # searches prefixes specified by the <PackageName>_ROOT
-    )
-      if(POLICY ${policy})
-        cmake_policy(SET ${policy} NEW)
-      endif()
-    endforeach()
-ENDMACRO()
-
 ################################################################################
 MACRO(SUBDIRLIST result curdir)
     FILE(GLOB children RELATIVE ${curdir} ${curdir}/*)

cmake/modules/FairRootCmakePolicies.cmake

@@ -0,0 +1,26 @@
+################################################################################
+#    Copyright (C) 2014 GSI Helmholtzzentrum fuer Schwerionenforschung GmbH    #
+#                                                                              #
+#              This software is distributed under the terms of the             #
+#              GNU Lesser General Public Licence (LGPL) version 3,             #
+#                  copied verbatim in the file "LICENSE"                       #
+################################################################################
+
+################################################################################
+#Sets CMake policies.
+MACRO(set_fairroot_cmake_policies)
+#Find more details to each policy with cmake-- help - policy CMPXXXX
+    foreach(policy
+      CMP0025 # Compiler id for Apple Clang is now AppleClang.
+      CMP0028 # Double colon in target name means ALIAS or IMPORTED target.
+      CMP0042 # MACOSX_RPATH is enabled by default.
+      CMP0048 # The ``project()`` command manages VERSION variables.
+      CMP0054 # Only interpret ``if()`` arguments as variables or keywords when unquoted.
+      CMP0074 # searches prefixes specified by the <PackageName>_ROOT
+    )
+      if(POLICY ${policy})
+        cmake_policy(SET ${policy} NEW)
+      endif()
+    endforeach()
+ENDMACRO()
+