Summary:
build_ios.sh now have `-fembed-bitcode` flags for cmake and passes these flags to build_host_protoc.sh (which now accepts optional argument `--other-flags`). That allows to use output libs (libCaffe2_CPU.a, libCAFFE2_NNPACK.a, libCAFFE2_PTHREADPOOL.a and libprotobuf-lite.a, libprotobuf.a respectively) in Xcode projects with bitcode enabled.
Bitcode is enabled by default in all projects since Xcode7, is crucial for slicing and is mandatory for watchOS targets. Enabling bitcode for target requires bitcode to be enabled for all dependencies also, so Caffe2 built without bitcode forces developers to switch off bitcode for the whole app.
Closes https://github.com/caffe2/caffe2/pull/457
Reviewed By: bwasti
Differential Revision: D4978644
Pulled By: Yangqing
fbshipit-source-id: 5165abb507fb91bc8c38f7348d6836bccf8fcc22
Summary: If the PATH doesn't include cmake (such as when android studio wipes all the environment variables), this will still work.
Reviewed By: Yangqing
Differential Revision: D4504653
fbshipit-source-id: 56a8854e3daf6ee1f5b1cbeb83ca175a007dad12
