title: Can't install Django Pillow: clang: error: no such file or directory
body: <p>I tried running <code>sudo ARCHFLAG=-Wunused-command-line-argument-hard-error-in-future pip install Pillow</code>, but it fails with the following output:</p>
  
  <pre><code>cc -bundle -undefined dynamic_lookup -arch x86_64 -arch i386 -Wl,-F. build/temp.macosx-10.9-intel-2.7/_imaging.o build/temp.macosx-10.9-intel-2.7/decode.o ... continued ...
  
  clang: error: no such file or directory: 'build/temp.macosx-10.9-intel-2.7/_imaging.o'
  
  clang: error: no such file or directory: 'build/temp.macosx-10.9-intel-2.7/decode.o'
  
  ...etc...
  
  error: command 'cc' failed with exit status 1
  
  ----------------------------------------
  Cleaning up...
  </code></pre>
  
  <p>What's the proper way of getting these files?</p>