So does this mean Swift 4 should work on the Raspberry Pi?
I know people had Swift 3 working, but last I heard there were some bugs holding back Swift 4 from ARM.
Edit: Thinking of the two issues listed at the bottom here https://www.uraimo.com/2017/09/06/A-small-update-on-Swift-fo.... Digging deeper it looks like there hasn't been a successful ARMv7 build yet (https://ci-external.swift.org/view/all/).