title: Integrating gcc 4.8 with Xcode 4.x
body: <p>I am trying to use OpenMP in a objective-c++ program. <br>
  Unfortunately llvm-gcc 4.2 seems to have serious bug when working with OpenMP. According to my researches, the best solution should be using gcc 4.8 instead.</p>
  
  <p>I already downloaded a prebuilt version of gcc 4.8. My question is: how can I integrate the new compiler with Xcode, so that I can select it directly in Build Settings from Xcode? <br>
  Alternatively, is there an <b>easy</b> way I can compile my project with gcc4.8? I have different files and a .xib, I really do not want to compile all of them by hand.</p>
  
  <p>I'm using MacOS 10.8.3 and Xcode 4.5.1 (though I think the procedure should be the same for all Xcode 4.x).</p>