title: Xcode Instruments is stripping symbols despite all build settings to the contrary
body: <p><strong>Problem</strong></p>
  
  <p>Instruments' Time Profiler is stripping all symbols except system libraries from my app, despite the fact that I have disabled this behavior in all relevant build settings in Xcode — <strong>but only on one development machine.</strong> The other dev machine behaves normally.</p>
  
  <p><strong>Description</strong></p>
  
  <p>Instruments' Time Profiler is stripping all symbols except system libraries, despite the fact that I have disabled this behavior in all relevant build settings in Xcode — but this is only happening on one of my development machines. I have two development machines running the same version of OS X, Xcode, and Instruments, and each machine is using an identical copy of the same Xcode project with identical build settings, schemes, and other configurations, and the app is profiled using the same test device (iPhone 4S with the latest public version of iOS 5).</p>
  
  <p><em>Machine 1</em><br>
  - Mac OS X 10.7.4<br>
  - Xcode 4.3.2 (4E2002)<br>
  - Instruments 4.3 (4321)   </p>
  
  <p><em>Machine 2</em><br>
  - Mac OS X 10.7.4<br>
  - Xcode 4.3.2 (4E2002)<br>
  - Instruments 4.3 (4321)   </p>
  
  <p><strong>Steps To Reproduce</strong></p>
  
  <ol>
  <li>Open included sample project on each machine.</li>
  <li>Make sure the iPhone 4S is selected as the test device.</li>
  <li>Select Product > Profile</li>
  <li>When Instruments launches, select Time Profiler and continue.</li>
  <li>Run the app. </li>
  <li>Notice how the symbols are stripped when running on the iMac (Machine 1) but not on the MacBook Air (Machine 2).</li>
  </ol>
  
  <p><strong>Expected Behavior</strong></p>
  
  <p>Symbols from my own code should appear in the Time Profiler on both machines.</p>
  
  <p><strong>Regression</strong></p>
  
  <p>I have tried all of the following, with no change in the actual results:</p>
  
  <ol>
  <li><p>Rebooting the machine.</p></li>
  <li><p>Trying other Xcode projects</p></li>
  <li><p>Deleting the "Derived Data" for all projects in the Xcode Organizer.</p></li>
  <li><p>Re-symbolicating the document in Instruments (carefully selecting the correct DSYM file in ~/Library/blahBlahBlah…)</p></li>
  </ol>
  
  <p><strong>Final Notes</strong></p>
  
  <p>Here is a link to a .zip file of a sample project: <a href="http://cl.ly/HfmE" rel="noreferrer">Sample Project .zip</a></p>