Fails to build on NetBSD

[0323pin]

Hi,

I use Alacritty development branch as my terminal emulator, version 0.14.x
While it was using x11-clipboard-0.8.1 there were no issues but, since it was bumped to 0.9.1, I'm no longer able to build it.

This is what I get from an attempt to build from the latest git-HEAD:

error[E0425]: cannot find function `eventfd` in crate `libc`
  --> /usr/pkgsrc/wip/alacritty-dev/work/vendor/x11-clipboard-0.9.1/src/run.rs:37:34
   |
37 |         let event_fd_res = libc::eventfd(0, libc::EFD_CLOEXEC);
   |                                  ^^^^^^^ not found in `libc`

error[E0425]: cannot find value `EFD_CLOEXEC` in crate `libc`
   --> /usr/pkgsrc/wip/alacritty-dev/work/vendor/x11-clipboard-0.9.1/src/run.rs:37:51
    |
37  |         let event_fd_res = libc::eventfd(0, libc::EFD_CLOEXEC);
    |                                                   ^^^^^^^^^^^ help: a constant with a similar name exists: `FD_CLOEXEC`
    |
   ::: /usr/pkgsrc/wip/alacritty-dev/work/vendor/libc-0.2.153/src/unix/mod.rs:225:9
    |
225 |         pub const FD_CLOEXEC: ::c_int = 0x1;
    |         ----------------------------- similarly named constant `FD_CLOEXEC` defined here

Patch replacing EFD_CLOEXEC with FD_CLOEXEC doesn't help and, I get:

error[E0425]: cannot find function `eventfd` in crate `libc`
  --> /usr/pkgsrc/wip/alacritty-dev/work/vendor/x11-clipboard-0.9.1/src/run.rs:37:34
   |
37 |         let event_fd_res = libc::eventfd(0, libc::FD_CLOEXEC);
   |                                  ^^^^^^^ not found in `libc`

Help would be really appreciated.
Thanks!

[quininer]

Ah, unexpected compatibility issue, @MarcusGrass are you interested in fix it?

[0323pin]

Possibly restricting the use eventfd to Linux only.

[MarcusGrass]

Ah, unexpected compatibility issue, @MarcusGrass are you interested in fix it?

Yeah, my bad, this could be done with a regular pipe, slightly uglier.