build: adjust Swift, Clang, linker flags (#1169)
build: adjust Swift, Clang, linker flags (#1169)

Use a condensed form of the swift definition.  Additionally, pass in the
paths to the just built (and installed) X10 library for headers and the
linker.
tensorflow/swift-apis,tensorflow/swift-apis,tensorflow/swift-apis,tensorflow/swift-apis,tensorflow/swift-apis