Cross-compile for Aarch64 on MacOS and support older macos versions

[Byron]

For reference:

• cross compilation
• support older MacOS versions

[06kellyjac]

For anyone desperate for prebuilt releases right now we have the following releases for gitoxide in nixpkgs:

• aarch64-linux
• i686-linux
• x86_64-linux
• x86_64-darwin
• aarch64-darwin

https://search.nixos.org/packages?channel=unstable&show=gitoxide&from=0&size=50&sort=relevance&type=packages&query=gitoxide

[sharifhsn]

Closed by #1479 (native aarch64-apple-darwin archives) and #1486 (universal2 binaries), with x86_64 later moved onto an Intel runner in #2183.

Cross-compilation is moot for CI now that GitHub has native arm64 macOS runners and universal2 fills the gap for developers. v0.54.0 ships aarch64, x86_64, and universal -apple-darwin archives for every feature variant:

gitoxide-max-v0.54.0-aarch64-apple-darwin.tar.gz
gitoxide-max-v0.54.0-x86_64-apple-darwin.tar.gz
gitoxide-max-v0.54.0-universal-apple-darwin.tar.gz

(same triple for small/lean/max-pure.)

For older macOS versions, although there is no MACOSX_DEPLOYMENT_TARGET implementation, the binaries inherit Rust's defaults, which are macOS 10.12 for x86_64 and 11.0 for aarch64, the same floor that postsack pins manually.

[EliahKagan]

Thanks--I agree!