title: Base class not recognized
body: <p>I just added <a href="https://github.com/shpakovski/MASPreferences" rel="nofollow">MASPreferences</a> to my project. It's a small library to help creating preference windows. Since it's just one class and a .xib I simply added them to my main target. When I try to use them, I get errors that basically mean that the class was not found (when I want to subclass it, or alloc an instance I get errors). Any ideas why I could be missing?</p>
  
  <p>The .m file and the .xib are added to the target.<br>
  The .h file are in a folder that is in the Header Search Paths (../Libraries/**)<br>
  Since it's not an ARC class, I added the -fno-objc-arc flag to the .m file.<br>
  The .h file is of course imported where I use them.</p>
  
  <p>These are the errors:</p>
  
  <pre><code>_pref = [[MASPreferencesWindowController alloc] initWithViewControllers:ctrls
                                                                    title:title];
  // Use of undeclared identifier 'MASPreferencesWindowController'.
  </code></pre>
  
  <p></p>
  
  <pre><code>@interface SBPreferencesWindowController : MASPreferencesWindowController
  // Class 'SBPreferencesWindowController' defined without specifying a base class
  </code></pre>
  
  <p>MASPreferencesWindowController.h is imported in both cases.</p>