Add GNU/Hurd support

[sthibaul]

No description provided.

[Thomasdezeeuw]

Can we add some CI support for this? Running cargo test or cargo check?

[sthibaul]

(a CI would need to wait for rust-lang/libc#3325)

[sthibaul]

Mmm, but AIUI, the current CI infrastructure installs support for the target from rustup? This is a tier3, so IIUC we won't have this?

[Thomasdezeeuw]

Mmm, but AIUI, the current CI infrastructure installs support for the target from rustup? This is a tier3, so IIUC we won't have this?

Maybe once #465 is merged we can add it to the tier 3 check, see https://github.com/rust-lang/socket2/pull/465/files#diff-7829468e86c1cc5d5133195b5cb48e1ff6c75e3e9203777f6b2e379d9e4882b3R68.

[sthibaul]

Ah, that'll have to wait for rust-lang/rust#116527 apparently

[Thomasdezeeuw]

Since rust-lang/rust#116527 is merged, let's wait two days and restart the CI.

[sthibaul]

Uh, between my tests and now, the use of msg_iov was added, and now I realize that the type was incorrect in libc, thus have to fix it there, and wait for another cycle.

[sthibaul]

Ok, there it is, now it's passing :D

[Thomasdezeeuw]

Thanks @sthibaul