illumos is not supported

[notgull]

https://github.com/rust-windowing/winit/actions/runs/9635842251/job/26573081975?pr=3751

I think illumos is still stuck on X11, but it would be nice to be able to support it here.

[kchibisov]

I'm 99% sure that all BSD(except freebsd)/other special targets are not supported by the libwayland itself, so bring it to upstream C library first?

The rust backend of wayland-rs should probably work though, but winit won't be able to target it at all, because we won't be able to provide raw-window-handle nor it'll be usable for anything at the current state of things.

[notgull]

https://gitlab.freedesktop.org/wayland/wayland/-/blob/main/.gitlab-ci.yml?ref_type=heads

Looks like you're right. It only tests for Debian and FreeBSD.

[kchibisov]

I mean, the other part is barely any compositors work on anything other than linux/freebsd, because a lot of them use libinput, etc, so they kind of tied to linux one way or another.

[ids1024]

Libwayland requires epoll and eventfd. On BSDs that requires epoll-shim. Does Illumos have something like that?

wayland-backend in contrast currently has code using epoll and kqueue, but I've been wondering if we could replace that platform-specific code with polling. So that could be a good start here.