title: How do I tell on Mac OS X if I have the Carbon or Cocoa version of Qt installed?
body: <p>I installed the QtSDK, but I can't find any documentation anywhere that specifies whether it uses the Cocoa or Carbon version.  Can I find out which got installed?  If not, is it safe to install the Cocoa version from the Library only dmg?  Qt version is 4.6.3, system version is 10.6.4.</p>