[TIMOB-24391] Hyperloop: iOS - Projects containing bitcode-enabled Cocoapods dependencies cause build-failure in Xcode 8.3 Beta

When running an app in Xcode 8.3 Beta, it works fine. But when I include a module that has Bitcode enabled (like Hyperloop and all new modules by default), I get a the following build error:

[TRACE] error: Invalid bitcode signature

[TRACE] clang: error: linker command failed with exit code 1 (use -v to see invocation)

[ERROR] ** BUILD FAILED **

[ERROR] The following build commands failed:

[ERROR]         Ld build/Intermediates/fbtest.build/Debug-iphoneos/fbtest.build/Objects-normal/arm64/fbtest normal arm64

[ERROR] (1 failure)

You can force a Xcode 8.3 build using appc run -p ios -I 10.3 --log-level trace which will select Xcode 8.3 to build the iOS 10.3 target app. I was able to reproduce this error using the [hyperloop-examples](https://github.com/appcelerator/hyperloop-examples) app, but not with Ti.Facebook so far - which still needs to investigated. In general, this is no valid Bug so far, so it's marked as a Story. In case it get's validated to be one, here are some possible solutions: - Enabled Bitcode in the Titanium SDK - Question: Was there a reason that this wasn't enabled when we enabled it in modules? - Disable Bitcode in all our code-modules - Hopefully not, it would be a breaking change Note: This is *not happening* on Simulator builds. Unfortunately, I didn't see many reports online so far, so it *may* be caused by the Beta version. But we're still in a very early Beta process of Xcode 8.3, so we can investigate this without problems. *UPDATE 1*: This is also *not happening* with other native modules like ti.facebook. So it may be related to the Hyperloop metabase compiler. *UDPATE 2*: The build also *works* when including Hyperloop in a new project, so hyperloop-examples seems to be the only effected one so far. Maybe one of the Cocoapods dependencies is causing the issue. *UPDATE 3*: Tracked it down to the Cocoapods dependencies. Manually disabling bitcode in the Podfile fixes it (as a workaround):

post_install do |installer|
  installer.pods_project.targets.each do |target|
    target.build_configurations.each do |config|
      config.build_settings['ENABLE_BITCODE'] = 'NO'
    end
  end
end

or manually injecting the the bitcode build-setting (preferred):

post_install do |installer|
  installer.pods_project.targets.each do |target|
    target.build_configurations.each do |config|
      cflags = config.build_settings['OTHER_CFLAGS'] || ['$(inherited)']
      cflags << '-fembed-bitcode'
      config.build_settings['OTHER_CFLAGS'] = cflags
    end
  end
end

*UPDATE 4*: I was now able to reproduce it with a different project as well, also using Hyperloop. It is attached in the first comment. *UPDATE 5*: It does *not* fail the build when using a native project using Cocoapods and Bitcode disabled.