title: Which is the cause for dyld`dyld_fatal_error, a incompatible api on iOS?
body: <p>I'm moving part of my projects to iOS 5 / ARC. One of the oldest project (iOS 4.2, armv6 for support iPod Touch 2g) is giving to me:</p>
  
  <pre><code>dyld`dyld_fatal_error:
  0x8feb1070:  int3   
  0x8feb1071:  nop    
  </code></pre>
  
  <p>Just after the launch image but before going to main. Must be some lib/code updated to iOS 5, but which one? Is possible to use a better method than guess??</p>