title: Invalid bitcode signature on xcode
body: <p>After updating Xcode to version 8.3 I'm getting this error:</p>
  
  <pre><code>error: Invalid bitcode signature
  clang: error: linker command failed with exit code 1 (use -v to see invocation)
  </code></pre>
  
  <p>Bitcode is not even enabled on my project.</p>
  
  <p>How can I fix this?</p>