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Improve error when X11/Wayland is not present

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Diggory Hardy 2024-01-25 10:49:36 +00:00 • committed by GitHub
parent b36d8d1e52
commit d0a1917603
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1 changed files with 8 additions and 3 deletions
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11
src/platform_impl/linux/mod.rs
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@ -765,10 +765,15 @@ impl<T: 'static> EventLoop<T> {
#[cfg(x11_platform)] #[cfg(x11_platform)]
(None, _, true) => Backend::X, (None, _, true) => Backend::X,
// No backend is present. // No backend is present.
_ => { (_, wayland_display, x11_display) => {
return Err(EventLoopError::Os(os_error!(OsError::Misc( let msg = if wayland_display && !cfg!(wayland_platform) {
"DISPLAY is not set; note: enable the `winit/wayland` feature to support Wayland"
} else if x11_display && !cfg!(x11_platform) {
"WAYLAND_DISPLAY is not set; note: enable the `winit/x11` feature to support X11"
} else {
"neither WAYLAND_DISPLAY nor DISPLAY is set." "neither WAYLAND_DISPLAY nor DISPLAY is set."
)))); };
return Err(EventLoopError::Os(os_error!(OsError::Misc(msg))));
} }
}; };