title: Unsupported compiler 'GCC 4.2' selected for architecture 'armv7'
body: <p>Just installed new version XCode 4.2 onto my Mac. I tried compiling my project but got the following error:</p>
  
  <p>Unsupported compiler 'GCC 4.2' selected for architecture 'armv7'</p>
  
  <p>Tried selecting arm7 in drop down for architechture in project and target settings. (The list actually shows just arm 7) still no use.</p>
  
  <p>Please help.</p>
  
  <p>Thanks</p>