This crate is designed only for linux CLI apps?

[qarmin]

I tried to compile my gui app, but I got linking error - rust-windowing/winit#3230

It is possible to compile gui app or wayland/x11 are not designed to run with eyra?

Looks that removing libc setlocale code from winit fixes linker issue, but after compilation I got this crash

thread '<unnamed>' panicked at /home/rafal/.cargo/registry/src/index.crates.io-6f17d22bba15001f/c-scape-0.15.22/src/process_.rs:212:5:
not implemented: dlopen
stack backtrace:

so looks that this is not really useful for this app because when looking in README.md I see No support for dynamic linking.
but this is quite strange because ldd returns

ldd ../target/debug/krokiet
        statically linked

[sunfishcode]

I've not tried any gui, wayland, or x11 apps myself, but they should work in theory, unless they hit unimplemented features. In that winit issue, it appears Eyra is missing the setlocale function.

I'm not aware of any existing locale implementations for Rust, and a full locale implementation would be a lot of work. However, a stub implementation that only supports the "POSIX" locale might be something that could be stood up pretty quickly.

[sunfishcode]

According to this, winit has a wayland-dlopen feature which is enabled by default, but which could be disabled, that might avoid the call to the dlopen function.

[qarmin]

I run app on x11, and even without removing wayland-dlopen feature, minimal app compiles and run fine(of course with removed lines about setlocale) - aa.zip

So dlopen problem comes from different module(not sure which, because I use a lot of packages and error not shows which package cause problem)

[sunfishcode]

I've now added a minimal setlocale implementation in c-scape 0.15.23.

Eyra doesn't have support for dlopen, and so if you have something that depends on dlopen, it won't work.

[qarmin]

I tried to run simple slint projects with disabled most features, but still somehow dlopen is used(I tried to patch internal dependencies, but without success), so I think that gui apps, due depending on x11 or wayland are not really able to run with this project

Project - slint-rust-template.zip

thread 'main' panicked at /home/rafal/.cargo/registry/src/index.crates.io-6f17d22bba15001f/c-scape-0.15.23/src/process_.rs:212:5:
not implemented: dlopen
stack backtrace:
   0: rust_begin_unwind
             at /rustc/6b771f6b5a6c8b03b6322a9c77ac77cb346148f0/library/std/src/panicking.rs:645:5
   1: core::panicking::panic_fmt
             at /rustc/6b771f6b5a6c8b03b6322a9c77ac77cb346148f0/library/core/src/panicking.rs:72:14
   2: dlopen
             at /home/rafal/.cargo/registry/src/index.crates.io-6f17d22bba15001f/c-scape-0.15.23/src/process_.rs:212:5
   3: x11_dl::link::DynamicLibrary::open
             at /home/rafal/.cargo/registry/src/index.crates.io-6f17d22bba15001f/x11-dl-2.21.0/src/link.rs:91:26
   4: x11_dl::link::DynamicLibrary::open_multi
             at /home/rafal/.cargo/registry/src/index.crates.io-6f17d22bba15001f/x11-dl-2.21.0/src/link.rs:128:19
   5: x11_dl::xlib::Xlib::open::{{closure}}
             at /home/rafal/.cargo/registry/src/index.crates.io-6f17d22bba15001f/x11-dl-2.21.0/src/link.rs:45:23
   6: once_cell::imp::OnceCell<T>::initialize::{{closure}}
             at /home/rafal/.cargo/registry/src/index.crates.io-6f17d22bba15001f/once_cell-1.18.0/src/imp_std.rs:72:23
   7: core::ops::function::impls::<impl core::ops::function::FnMut<A> for &mut F>::call_mut
             at /rustc/6b771f6b5a6c8b03b6322a9c77ac77cb346148f0/library/core/src/ops/function.rs:294:13
   8: once_cell::imp::initialize_or_wait
             at /home/rafal/.cargo/registry/src/index.crates.io-6f17d22bba15001f/once_cell-1.18.0/src/imp_std.rs:196:20
   9: once_cell::imp::OnceCell<T>::initialize
             at /home/rafal/.cargo/registry/src/index.crates.io-6f17d22bba15001f/once_cell-1.18.0/src/imp_std.rs:68:9
  10: once_cell::sync::OnceCell<T>::get_or_try_init
             at /home/rafal/.cargo/registry/src/index.crates.io-6f17d22bba15001f/once_cell-1.18.0/src/lib.rs:1163:13
  11: x11_dl::xlib::Xlib::open
             at /home/rafal/.cargo/registry/src/index.crates.io-6f17d22bba15001f/x11-dl-2.21.0/src/link.rs:42:26
  12: winit::platform_impl::platform::x11::xdisplay::XConnection::new
             at /home/rafal/.cargo/registry/src/index.crates.io-6f17d22bba15001f/winit-0.29.3/src/platform_impl/linux/x11/xdisplay.rs:63:20
  13: winit::platform_impl::platform::X11_BACKEND::{{closure}}
             at /home/rafal/.cargo/registry/src/index.crates.io-6f17d22bba15001f/winit-0.29.3/src/platform_impl/linux/mod.rs:119:29
  14: core::ops::function::FnOnce::call_once
             at /rustc/6b771f6b5a6c8b03b6322a9c77ac77cb346148f0/library/core/src/ops/function.rs:250:5
  15: core::ops::function::FnOnce::call_once
             at /rustc/6b771f6b5a6c8b03b6322a9c77ac77cb346148f0/library/core/src/ops/function.rs:250:5
  16: once_cell::sync::Lazy<T,F>::force::{{closure}}
             at /home/rafal/.cargo/registry/src/index.crates.io-6f17d22bba15001f/once_cell-1.18.0/src/lib.rs:1312:28
  17: once_cell::sync::OnceCell<T>::get_or_init::{{closure}}
             at /home/rafal/.cargo/registry/src/index.crates.io-6f17d22bba15001f/once_cell-1.18.0/src/lib.rs:1122:57
  18: once_cell::imp::OnceCell<T>::initialize::{{closure}}
             at /home/rafal/.cargo/registry/src/index.crates.io-6f17d22bba15001f/once_cell-1.18.0/src/imp_std.rs:72:23
  19: core::ops::function::impls::<impl core::ops::function::FnMut<A> for &mut F>::call_mut
             at /rustc/6b771f6b5a6c8b03b6322a9c77ac77cb346148f0/library/core/src/ops/function.rs:294:13
  20: once_cell::imp::initialize_or_wait
             at /home/rafal/.cargo/registry/src/index.crates.io-6f17d22bba15001f/once_cell-1.18.0/src/imp_std.rs:196:20
  21: once_cell::imp::OnceCell<T>::initialize
             at /home/rafal/.cargo/registry/src/index.crates.io-6f17d22bba15001f/once_cell-1.18.0/src/imp_std.rs:68:9
  22: once_cell::sync::OnceCell<T>::get_or_try_init
             at /home/rafal/.cargo/registry/src/index.crates.io-6f17d22bba15001f/once_cell-1.18.0/src/lib.rs:1163:13
  23: once_cell::sync::OnceCell<T>::get_or_init
             at /home/rafal/.cargo/registry/src/index.crates.io-6f17d22bba15001f/once_cell-1.18.0/src/lib.rs:1122:19
  24: once_cell::sync::Lazy<T,F>::force
             at /home/rafal/.cargo/registry/src/index.crates.io-6f17d22bba15001f/once_cell-1.18.0/src/lib.rs:1311:13
  25: <once_cell::sync::Lazy<T,F> as core::ops::deref::Deref>::deref
             at /home/rafal/.cargo/registry/src/index.crates.io-6f17d22bba15001f/once_cell-1.18.0/src/lib.rs:1378:13
  26: winit::platform_impl::platform::EventLoop<T>::new_x11_any_thread
             at /home/rafal/.cargo/registry/src/index.crates.io-6f17d22bba15001f/winit-0.29.3/src/platform_impl/linux/mod.rs:798:27
  27: winit::platform_impl::platform::EventLoop<T>::new
             at /home/rafal/.cargo/registry/src/index.crates.io-6f17d22bba15001f/winit-0.29.3/src/platform_impl/linux/mod.rs:787:30
  28: winit::event_loop::EventLoopBuilder<T>::build
             at /home/rafal/.cargo/registry/src/index.crates.io-6f17d22bba15001f/winit-0.29.3/src/event_loop.rs:128:25
  29: i_slint_backend_winit::event_loop::NotRunningEventLoop::new
             at /home/rafal/.cargo/registry/src/index.crates.io-6f17d22bba15001f/i-slint-backend-winit-1.3.0/event_loop.rs:62:13
  30: i_slint_backend_winit::event_loop::with_window_target::{{closure}}
             at /home/rafal/.cargo/registry/src/index.crates.io-6f17d22bba15001f/i-slint-backend-winit-1.3.0/event_loop.rs:198:52
  31: std::thread::local::LocalKey<T>::try_with
             at /rustc/6b771f6b5a6c8b03b6322a9c77ac77cb346148f0/library/std/src/thread/local.rs:270:16
  32: std::thread::local::LocalKey<T>::with
             at /rustc/6b771f6b5a6c8b03b6322a9c77ac77cb346148f0/library/std/src/thread/local.rs:246:9
  33: i_slint_backend_winit::event_loop::with_window_target
             at /home/rafal/.cargo/registry/src/index.crates.io-6f17d22bba15001f/i-slint-backend-winit-1.3.0/event_loop.rs:196:9
  34: i_slint_backend_winit::Backend::new_with_renderer_by_name
             at /home/rafal/.cargo/registry/src/index.crates.io-6f17d22bba15001f/i-slint-backend-winit-1.3.0/lib.rs:158:9
  35: i_slint_backend_winit::Backend::new
             at /home/rafal/.cargo/registry/src/index.crates.io-6f17d22bba15001f/i-slint-backend-winit-1.3.0/lib.rs:150:9
  36: i_slint_backend_selector::create_winit_backend
             at /home/rafal/.cargo/registry/src/index.crates.io-6f17d22bba15001f/i-slint-backend-selector-1.3.0/lib.rs:29:17
  37: i_slint_backend_selector::create_default_backend
             at /home/rafal/.cargo/registry/src/index.crates.io-6f17d22bba15001f/i-slint-backend-selector-1.3.0/lib.rs:72:23
  38: i_slint_backend_selector::create_backend
             at /home/rafal/.cargo/registry/src/index.crates.io-6f17d22bba15001f/i-slint-backend-selector-1.3.0/lib.rs:115:13
  39: core::ops::function::FnOnce::call_once
             at /rustc/6b771f6b5a6c8b03b6322a9c77ac77cb346148f0/library/core/src/ops/function.rs:250:5
  40: i_slint_core::with_platform::{{closure}}
             at /home/rafal/.cargo/registry/src/index.crates.io-6f17d22bba15001f/i-slint-core-1.3.0/lib.rs:101:36
  41: std::thread::local::LocalKey<T>::try_with
             at /rustc/6b771f6b5a6c8b03b6322a9c77ac77cb346148f0/library/std/src/thread/local.rs:270:16
  42: std::thread::local::LocalKey<T>::with
             at /rustc/6b771f6b5a6c8b03b6322a9c77ac77cb346148f0/library/std/src/thread/local.rs:246:9
  43: i_slint_core::with_platform
             at /home/rafal/.cargo/registry/src/index.crates.io-6f17d22bba15001f/i-slint-core-1.3.0/lib.rs:98:5
  44: i_slint_backend_selector::with_platform
             at /home/rafal/.cargo/registry/src/index.crates.io-6f17d22bba15001f/i-slint-backend-selector-1.3.0/lib.rs:136:5
  45: slint::private_unstable_api::ensure_backend
             at /home/rafal/.cargo/registry/src/index.crates.io-6f17d22bba15001f/slint-1.3.0/private_unstable_api.rs:140:5
  46: ff::slint_generatedMainWindow::InnerMainWindow::new
             at ./target/debug/build/ff-5306763ea814fcba/out/appwindow.rs:7991:35
  47: ff::slint_generatedMainWindow::MainWindow::new
             at ./target/debug/build/ff-5306763ea814fcba/out/appwindow.rs:8492:26
  48: ff::main
             at ./src/main.rs:6:14
  49: core::ops::function::FnOnce::call_once
             at /rustc/6b771f6b5a6c8b03b6322a9c77ac77cb346148f0/library/core/src/ops/function.rs:250:5
note: Some details are omitted, run with `RUST_BACKTRACE=full` for a verbose backtrace.

[sunfishcode]

The stack trace mentions the x11-dl crate. According to this page, x11-dl is dynamically linked, while x11 is statically linked. Would it be possible to switch from x11-dl to x11 here? It looks like winit has x11-dl as a configurable feature.