title: Where does xcode resolve "$(BUILT_PRODUCTS_DIR) to on my system?
body: <p>When Compiling for iPhone Simulator with Xcode 4.2, if I place </p>
  
  <blockquote>
    <p>"$(BUILT_PRODUCTS_DIR)"</p>
  </blockquote>
  
  <p>in </p>
  
  <blockquote>
    <p>Build Settings / Header search paths / Debug</p>
  </blockquote>
  
  <p>and exit editing I can see it resolves to: </p>
  
  <blockquote>
    <p>"build/Debug-iphoneos"</p>
  </blockquote>
  
  <p>Where should this be on my system? I have looked in:</p>
  
  <pre><code>Library/Developer/Xcode/DerivedData/{Project Name}/Build
  </code></pre>
  
  <p>but I can't find a file called build that contains a folder called Debug-iphoneos. </p>