title: How to suppress compiler warnings en masse in Xcode
body: <p>Within several projects, I am using 3rd party code that produce more than a few compiler warnings. I obviously do not want to go through and modify code of actively updated 3rd party projects.</p>
  
  <p>This leaves me with a lot of unnecessary warnings that drown out warnings in <strong><em>MY</em></strong> code.</p>
  
  <p>I have used some compiler flags to suppress specific warnings on a per file basis, but that is much too tedious for open source code with 10-20 .m files.</p>
  
  <p>Is there a way all warnings by Xcode group or file path? Or does somebody have a better suggestion?</p>
  
  <p>(FYI: I am using the LLVM 1.5 compiler)</p>