unxip 3.1

[timsutton]

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[timsutton]

Now I realize that unxip 3.1 requires Swift 6.0 just to build. It's already configured with older macOS deployment targets but it does need a minimum of Xcode 16.0 (or CLT from Sequoia).

It seems to me like in order to bump this formula to 3.1, it could mean needing to require at least Sonoma as a minimum OS version since that'd be the oldest macOS which could still run Xcode 16? We might be able to instead build it with OSS Swift 6.0 if it's possible to install and build with the swift formula Ventura/Sonoma/Sequoia .

[chenrui333]

since swift 6.0 is still in progress (#190921), mark the formula macos only

[github-actions]

This pull request has been automatically marked as stale because it has not had recent activity. It will be closed if no further activity occurs.

The base branch was changed.

[carlocab]

Fails on macOS 13 and 14. macOS 13 isn't that surprising, but don't we have Xcode 16 on macOS 14?

[Bo98]

Likely uses macOS 15 SDK features (which macOS 14 has and Homebrew will use if you do depends_on xcode: ["16.0", :build]).

There's discussion above about improving that with depends_on swift: "6.0" in the future but for now it is how it works.

[github-actions]

@carlocab has requested bottles to be published to this PR.