No metal compiler in MacOSX.platform folder

Hi,


After we updated to xcode 10, we noticed that there is no metal compiler in MacOSX.platform folder, and neither the metal stdlib inculde files. There are only existed in iPhoneOS.platform folder.


Seems like we can build macosx shader by using the ios metal compiler for Metal SL 1.0 / 1.1. But if we want choose Metal SL 2.1, the ios metal compiler will report errors about the address space qualifier "threadgroup_imageblock" .


So, how can we build macos metal shader offline in xcode 10? Thanks very much.