Unavailability on macOS

[SDGGiesbrecht (Jeremy David Giesbrecht)]

@Jon_Shier

Being able to do brew install swift would be much nicer for anyone who doesn't want or can't run the version of Xcode required for the toolchains.

@Avi

If someone wants to build and maintain a brew cask for it, there's nothing stopping them.

@Jon_Shier

Technically true, but how would anyone not intimately familiar with how the toolchains work figure that out?

Granted it’s not official, and hence not mentioned on swift.org. But a quick way to get Swift installed without knowing anything about Xcode would be to install swiftenv with Homebrew and then do:

swiftenv install 5.1.2

Edit: 5.1.3 is in a sort of half‐released state, and thus might not work with swiftenv yet.