title: How to check the installed Qt version on Mac OS X
body: <p>Is there a command to check the version of the installed Qt on Mac OS X. My Mac OS X version is 10.6.7.</p>
  
  <p><strong>Eidt: Update the status 10/28/2011</strong></p>
  
  <p>When running /usr/sbin/system_profiler SPFrameworksDataType, the version of the QTkit is 7.6.6. </p>
  
  <p>The value of the macro QT_VERSION_STR in qglobal.h is "4.7.2". </p>
  
  <p>I'm confused why the two version strings are different? Obviously, the version string "4.7.2" is what I want.</p>
  
  <p>Thanks,
  Jeffrey</p>