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Description
Right now, we only support kind-of-static linking: the swift_library targets that the binary depends on are statically linked into the final binary, but the Swift runtime libraries are dynamically linked. This is fine (and in fact, desired) on Apple's mobile platforms (iOS, tvOS, watchOS), but on Linux (and probably macOS), we should offer static linking against the runtime as well.
One interesting catch: Linux toolchains do not come with a static version of libdispatch, which would seem to mean you can't do a whole lot of interesting stuff in a statically linked environment. So this might reduce the usefulness and urgency of this feature.