Building on Apple M1 (update winit)

[emllnd]

Hi!

I wanted to test conrod and run the examples, but was unable to do so as it depends on winit versions that run into a compilation error on machines with an Apple M1 processor (0.19.5, 0.23).

Based on this issue in the winit repo it seems like winit versions starting from 0.24 are again able to be built on M1 machines. Another test project that I've successfully built on the machine uses winit v0.25.

I might be able to edit/expand this post with further information later and even submit a PR. I had a quick look at the code. It might be a straightforward case of copypasting relevant event conversion implementations from v023 and changing the version number in a few places, but I couldn't figure it all out just yet.

Error messages below.

Winit version 0.19.5

conrod % cargo run --release --example all_piston_window
Updating crates.io index
Compiling autocfg v1.0.1

[...]

Compiling conrod_derive v0.73.0 (/Users/XXXXXXXX/Desktop/conrod/conrod_derive)
Compiling image v0.23.14
Compiling winit v0.19.5
error[E0308]: mismatched types
   --> /Users/XXXXXXXX/.cargo/registry/src/github.com-1ecc6299db9ec823/winit-0.19.5/src/platform/macos/view.rs:209:9
    |
205 | extern fn has_marked_text(this: &Object, _sel: Sel) -> BOOL {
    |                                                        ---- expected `bool` because of return type
...
209 |         (marked_text.length() > 0) as i8
    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ expected `bool`, found `i8`

error[E0308]: mismatched types
   --> /Users/XXXXXXXX/.cargo/registry/src/github.com-1ecc6299db9ec823/winit-0.19.5/src/platform/macos/window.rs:103:26
    |
103 |             is_zoomed != 0
    |                          ^ expected `bool`, found integer

error[E0308]: mismatched types
   --> /Users/XXXXXXXX/.cargo/registry/src/github.com-1ecc6299db9ec823/winit-0.19.5/src/platform/macos/window.rs:175:57
    |
175 |                 self.window.setFrame_display_(new_rect, 0);
    |                                                         ^ expected `bool`, found integer

error[E0308]: mismatched types
    --> /Users/XXXXXXXX/.cargo/registry/src/github.com-1ecc6299db9ec823/winit-0.19.5/src/platform/macos/window.rs:1301:48
     |
1301 |         window.setFrame_display_(current_rect, 0)
     |                                                ^ expected `bool`, found integer

error[E0308]: mismatched types
    --> /Users/XXXXXXXX/.cargo/registry/src/github.com-1ecc6299db9ec823/winit-0.19.5/src/platform/macos/window.rs:1308:48
     |
1308 |         window.setFrame_display_(current_rect, 0)
     |                                                ^ expected `bool`, found integer

error[E0308]: mismatched types
    --> /Users/XXXXXXXX/.cargo/registry/src/github.com-1ecc6299db9ec823/winit-0.19.5/src/platform/macos/window.rs:1325:48
     |
1325 |         window.setFrame_display_(current_rect, 0)
     |                                                ^ expected `bool`, found integer

error[E0308]: mismatched types
    --> /Users/XXXXXXXX/.cargo/registry/src/github.com-1ecc6299db9ec823/winit-0.19.5/src/platform/macos/window.rs:1332:48
     |
1332 |         window.setFrame_display_(current_rect, 0)
     |                                                ^ expected `bool`, found integer

error: aborting due to 7 previous errors

For more information about this error, try `rustc --explain E0308`.
error: could not compile `winit`

Winit version 0.23

conrod % cargo run --release --example all_winit_glium  
Compiling core-foundation-sys v0.8.2
Compiling core-foundation-sys v0.7.0

[...]

Compiling conrod_core v0.73.0 (/Users/XXXXXXXX/Desktop/conrod/conrod_core)
Compiling tiff v0.3.1
error[E0308]: mismatched types
   --> /Users/XXXXXXXX/.cargo/registry/src/github.com-1ecc6299db9ec823/winit-0.23.0/src/platform_impl/macos/util/async.rs:170:55
    |
170 |                 ns_window.setFrame_display_(new_rect, 0);
    |                                                       ^ expected `bool`, found integer

error[E0308]: mismatched types
   --> /Users/XXXXXXXX/.cargo/registry/src/github.com-1ecc6299db9ec823/winit-0.23.0/src/platform_impl/macos/view.rs:391:9
    |
386 | extern "C" fn has_marked_text(this: &Object, _sel: Sel) -> BOOL {
    |                                                            ---- expected `bool` because of return type
...
391 |         (marked_text.length() > 0) as i8
    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ expected `bool`, found `i8`

error[E0308]: mismatched types
   --> /Users/XXXXXXXX/.cargo/registry/src/github.com-1ecc6299db9ec823/winit-0.23.0/src/platform_impl/macos/window.rs:656:22
    |
656 |         is_zoomed != 0
    |                      ^ expected `bool`, found integer

error[E0308]: mismatched types
    --> /Users/XXXXXXXX/.cargo/registry/src/github.com-1ecc6299db9ec823/winit-0.23.0/src/platform_impl/macos/window.rs:1171:48
     |
1171 |         window.setFrame_display_(current_rect, 0)
     |                                                ^ expected `bool`, found integer

error[E0308]: mismatched types
    --> /Users/XXXXXXXX/.cargo/registry/src/github.com-1ecc6299db9ec823/winit-0.23.0/src/platform_impl/macos/window.rs:1178:48
     |
1178 |         window.setFrame_display_(current_rect, 0)
     |                                                ^ expected `bool`, found integer

error[E0308]: mismatched types
    --> /Users/XXXXXXXX/.cargo/registry/src/github.com-1ecc6299db9ec823/winit-0.23.0/src/platform_impl/macos/window.rs:1195:48
     |
1195 |         window.setFrame_display_(current_rect, 0)
     |                                                ^ expected `bool`, found integer

error[E0308]: mismatched types
    --> /Users/XXXXXXXX/.cargo/registry/src/github.com-1ecc6299db9ec823/winit-0.23.0/src/platform_impl/macos/window.rs:1202:48
     |
1202 |         window.setFrame_display_(current_rect, 0)
     |                                                ^ expected `bool`, found integer

error: aborting due to 7 previous errors

For more information about this error, try `rustc --explain E0308`.
error: could not compile `winit