[swift-dev] Llvm Toolchain packaging

[Patrice Kouame]

Hi all - Xcode doesn't recognize my llvm toolchain even though it was built right out of llvm trunk with llvm toolchain enabled. However, Swift toolchains are imported with ease into Xcode. Just by dropping into toolchains. I'd like to find out more about how swift manages to package their toolchains so that Xcode doesn't complain about incompatibility. What's the secret sauce? Can any one point me in the right direction? Is it signing related? I'm on a bleeding edge environment with Sierra public beta and Xcode 8 beta.
Currently I just change my path to "enable" my preferred clang toolchain, but would like to avoid that in the future by switching with xcode-select. Any help is greatly appreciated...

Patrice