swift

3689d4c3 - [CMake] Added support for disabling building the SourceKit XPC service.

[CMake] Added support for disabling building the SourceKit XPC service. Made `BUILD_SOURCEKIT_XPC_SERVICE` into an option so it can be set externally. It continues to default to `TRUE` if `HAVE_XPC_H AND SWIFT_BUILD_SOURCEKIT` is true, and `FALSE` otherwise, but this allows a client to disable this ahead of time and build a sourcekitd.framework without the XPC service. This addresses <rdar://problem/85511711>.