This is already supported on Linux but on Darwin it requires some extra flags. Differential Revision: https://reviews.llvm.org/D30958 llvm-svn: 300257
These cache files can be used to build Fuchsia toolchain. They also demonstrate the use of multi-target builtins build. Differential Revision: https://reviews.llvm.org/D26654 llvm-svn: 295480