title: -fno-objc-arc not working to disable ARC
body: <p>I have tried <a href="https://stackoverflow.com/a/6658549/385559">the solution found in this post</a> to disable ARC in AFNetworking files, but to no avail:</p>
  
  <p><img src="https://i.stack.imgur.com/CkUxv.png" alt="enter image description here"></p>
  
  <p>Any ideas where I am failing? Obviously the simpler the answer the better. I have also read that creating static libraries may help, but this seems complicated. </p>
  
  <p><strong>EDITS</strong></p>
  
  <p>I have tried deleting derived data <em>and</em> Clean and Build <em>and</em> restarting Xcode. No deals :(. </p>
  
  <p>Also, there are no other projects in my workspace.</p>