Patch for Setting Cmake Policy CMP0022 .

Patch for Setting Cmake Policy (CMP0022) .
More info : 
http://www.cmake.org/cmake/help/git-master/policy/CMP0022.html 

![screen shot 2014-01-16 at 9 11 06 pm](https://f.cloud.github.com/assets/6402971/1933093/b1819918-7ed5-11e3-95c8-8b68c662f997.png)