title: Bitrise, Xcode9 (beta6): bitcode bundle could not be generated
body: <p>One of the frameworks I use fails to get built with Bitrise with Xcode9beta stack. I must point out that this is Bitrise-specific issue. Or either, Bitrise/Eureka issue. Eureka is a particular instance of third-party framework.</p>
  
  <p>Project is built well on the local machine, no bitcode-related issues whatsoever. But whenever I run CI, I get that typical log:</p>
  
  <pre><code>❌  ld: bitcode bundle could not be generated because '.../Frameworks/Eureka.framework/Eureka' was built without full bitcode. All frameworks and dylibs for bitcode must be generated from Xcode Archive or Install build file '.../Frameworks/Eureka.framework/Eureka' for architecture armv7
  
  ❌  clang: error: linker command failed with exit code 1 (use -v to see invocation)
  </code></pre>
  
  <p>I followed these guidelines:
  <a href="https://stackoverflow.com/questions/31233395/ios-library-to-bitcode">iOS library to BitCode</a></p>
  
  <p>Flag is set.</p>
  
  <p><a href="https://i.stack.imgur.com/vESMn.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/vESMn.png" alt="Bitcode"></a></p>
  
  <p>I have also tried similar settings for head project/target, to no avail.</p>
  
  <p>Any suggestions?</p>