Fixed cmake files so they still work with the old version of cmake.

--HG--
extra : convert_revision : svn%3Afdd8eb12-d10e-0410-9acb-85c331704f74/trunk%402611

dlib/CMakeLists.txt

@@ -6,7 +6,9 @@
 # setting this makes CMake allow normal looking IF ELSE statements
 SET(CMAKE_ALLOW_LOOSE_LOOP_CONSTRUCTS true)
 cmake_minimum_required(VERSION 2.4)
-cmake_policy(SET CMP0003 NEW)
+if(COMMAND cmake_policy) 
+   cmake_policy(SET CMP0003 NEW) 
+endif()
 
 
 # make macros that can add #define directives to the entire project.  Not just 

dlib/test/CMakeLists.txt

@@ -6,7 +6,9 @@
 # setting this makes CMake allow normal looking IF ELSE statements
 SET(CMAKE_ALLOW_LOOSE_LOOP_CONSTRUCTS true)
 cmake_minimum_required(VERSION 2.4)
-cmake_policy(SET CMP0003 NEW)
+if(COMMAND cmake_policy)
+   cmake_policy(SET CMP0003 NEW)
+endif(COMMAND cmake_policy)
 
 # This variable contains a list of all the tests we are building
 # into the regression test suite.