[PATCH] D35346: [CMake] Enable buildings builtins for Darwin as part of runtimes

[Chris Bieneman via Phabricator via llvm-commits]

beanz added a comment.

So... Looking at the CMake in compiler-rt, `COMPILER_RT_DEFAULT_TARGET_ONLY` is only interpreted in a `NOT APPLE` block, so this would really not behave the way you intend. I think it is better to not support this on Darwin for the time being and provide a hard error rather than behaving incorrectly.

I suspect if you passed in multiple Darwin triples in `LLVM_BUILTIN_TARGETS` you'd get multiple copies of all the Darwin builtin libraries being built.


Repository:
  rL LLVM

https://reviews.llvm.org/D35346