[Redoubts]

It does have c interop so you could just use libarchive. Though writing c in swift is a bit less magical.

[randomNumber7]

While technically true you then have to use pointers in swift and they made it hard by design to do that.

[heavyset_go]

Last time I looked, Swift didn't have a stable way to export C-compatible ABIs.

[saagarjha]

@_cdecl exists, although it's underscored.

[heavyset_go]

I was under the impression that this feature wasn't stable, but it's been years since I've thought about it.