rustup install stable-x86_64-unknown-openbsd fails

[kpcyrd]

I found an openbsd target in rustc:

$ rustc --print target-list | grep openbsd
i686-unknown-openbsd
x86_64-unknown-openbsd
$

but the install fails:

$ rustup install stable-x86_64-unknown-openbsd
info: syncing channel updates for 'stable-x86_64-unknown-openbsd'
214.6 KiB / 214.6 KiB (100 %)  28.8 KiB/s ETA:   0 s                
info: latest update on 2017-08-31, rust version 1.20.0 (f3d6973f4 2017-08-27)
error: target not found: 'x86_64-unknown-openbsd'
$ rustup install nightly-x86_64-unknown-openbsd
info: syncing channel updates for 'nightly-x86_64-unknown-openbsd'
230.3 KiB / 230.3 KiB (100 %)  69.1 KiB/s ETA:   0 s                
info: latest update on 2017-10-08, rust version 1.22.0-nightly (05f8ddc46 2017-10-07)
error: target not found: 'x86_64-unknown-openbsd'
$ 

[SimonSapin]

rustc --print target-list shows which targets the compiler knows how to (cross-)compile to. “target not found” in rustup means that corresponding binary builds are not available at rust-lang.org. This matches the “tier 3” status listed at https://forge.rust-lang.org/platform-support.html. So you probably need to compile some stuff yourself, or find out if someone else maintains binary builds.

If you want to cross-compile from another platform (as opposed to running the compiler on OpenBSD), maybe https://github.com/japaric/rust-cross#cross-compiling-the-standard-crates can help.

[kpcyrd]

Is there a way to get a platform to tier 3 status with volunteers from the community? I'm asking because it seems this bug blocks cross-rs/cross#97 which seems to blocks other projects to integrate openbsd into their CI (nix-rust/nix#685, tokio-rs/mio#593). I would be interested in working on this as I maintain rust programs that target openbsd.

[gnzlbg]

@kpcyrd you probably just need to submit a PR to this repo that fixes this.

[Diggsey]

I think there's some target/host confusion here.

To add a target to rustc, you would do rustup target add <target-triple>

Regardless, issues around platform support should be opened against rust-lang/rust unless there is a platform which rustc supports but rustup itself is not built for.