title: OpenAL's AL/al.h not found on Mac OS X Lion with XCode 4.1
body: <p>I've created a project in XCode and added the OpenAL framework. Still the compiler can't find AL/al.h when i try to include it.</p>
  
  <p>Where do I add the include directory for OpenAL?</p>
  
  <p>edit: Sorry I forgot to add: I'm using C/C++</p>