title: Apple Mach-O linker warning won't go away
body: <p>I have had this Apple Mach-O linker warning in my project for a few days now.  It is more annoying than anything, but I fear that it may somehow be affecting my app's performance (I have had so many weird issues with Xcode, that I wouldn't doubt anything at this point).  The warning says:</p>
  
  <blockquote>
    <p>warning: directory not found for option '-L/Volumes/ZBarSDK/ZBarSDK'</p>
  </blockquote>
  
  <p>I have no idea what can be causing this or how to fix it.  I have a folder in my app called ZBarSDK, but adding another ZBarSDK does not fix the problem!  I tried searching my computer for a Volumes folder with no luck, either it's not there, or Apple hid it pretty well.  Please let me know what I can do to fix this</p>