title: directory not found Apple Mach-O linker warning but Library Search Path and Framework Search Path are empty
body: <p>I'm getting these messages:</p>
  
  <pre><code>ld: warning: directory not found for option '-F"/Users/joel/Development/GHaikuTabbed"'
  ld: warning: directory not found for option '-F"/Users/joel/Development/GHaikuTabbed/../../../Downloads"'
  </code></pre>
  
  <p>But when I go to Build Settings (as suggested at <a href="https://stackoverflow.com/questions/9458739/ld-warning-directory-not-found-for-option">‘ld: warning: directory not found for option’</a>), Library Search Path and Framework Search Path are empty, so there's nothing to delete.</p>
  
  <p>Thoughts on other things I can do to get rid of this warning?</p>