Slava Pestov 9f80a9cff0 Copy legacy layouts to stdlib build directory ...

This adds a new copy-legacy-layouts-${platform}-${arch} target for each
platform and architecture that the standard library is built for.

If the platform and architecture has a corresponding layout file in
stdlib/public/legacy_layouts/${platform}/layouts-${arch}.yaml, the
target copies this file to the build directory; otherwise, it does
nothing.

When building Swift code, the subroutines in SwiftSource.cmake add a
dependency on this target from each Swift code target.

Finally, we ensure that the YAML files are copied into the toolchain
package when building a toolchain.

2019-02-08 14:22:00 -05:00

..

layouts-x86_64.yaml

Copy legacy layouts to stdlib build directory

2019-02-08 14:22:00 -05:00