Unable to build app that uses erlang's :gl and :wx modules under the hood for seemingly any platform

[begedin]

Host

Tell us about your Host OS (the machine you're building burrito apps on)

Host OS: MacOS 15.2
Host CPU: arm64

Please run zig version in your Burrito project directory and write the version here: 0.14.0

Please run elixir -v in your Burrito project directory and write the version here: 1.18.3

---

Target

Any target. My current targets are

macos: [os: :darwin, cpu: :x86_64],
linux: [os: :linux, cpu: :x86_64],
windows: [os: :windows, cpu: :x86_64]

Each fails when I comment out the other two

---

I'm not sure if this is a bug, or just not supported, so open to any shape of answer.

The wrap step fails with

/{repo}/.asdf/installs/zig/0.14.0/zig build-exe 
/{repo}/deps/burrito/src/xz/xz_crc32.c 
/{repo}/deps/burrito/src/xz/xz_dec_lzma2.c 
/{repo}/deps/burrito/src/xz/xz_dec_stream.c -OReleaseSmall -target x86_64-macos -mcpu baseline -I /{repo}/deps/burrito/src/xz --dep build_options --dep burrito_plugin -Mroot=/{repo}/deps/burrito/src/wrapper.zig -Mbuild_options=/{repo}/deps/burrito/.zig-cache/c/731648c14730179a955a2b3ee874337f/options.zig -Mburrito_plugin=/{repo}/burrito/_dummy_plugin.zig -lc --cache-dir {repo}/deps/burrito/.zig-cache --global-cache-dir /{username}/.cache/zig --name snake --zig-lib-dir /{username}/.asdf/installs/zig/0.14.0/lib/ --listen=- 
Build Summary: 1/4 steps succeeded; 1 failed
install transitive failure
└─ install snake transitive failure
   └─ zig build-exe snake ReleaseSmall x86_64-macos failure
error: the following build command failed with exit code 1:
/{repo}/deps/burrito/.zig-cache/o/fb7ed7dc04b446b6f39a6963a0c9a034/build /{username}/.asdf/installs/zig/0.14.0/zig /{username}/.asdf/installs/zig/0.14.0/lib /{repo}/deps/burrito /{repo}/deps/burrito/.zig-cache /{username}/.cache/zig --seed 0xa167b8d -Z9131173d854aad96 -Dtarget=x86_64-macos
--> Cleaning up...
--> Burrito failed to wrap up your app! Check the logs for more information.
** (RuntimeError) Wrapper build failed
    (burrito 1.3.0) lib/steps/build/pack_and_build.ex:59: Burrito.Steps.Build.PackAndBuild.execute/1
    (burrito 1.3.0) lib/builder/builder.ex:140: anonymous fn/3 in Burrito.Builder.run_phase/2
    (elixir 1.18.3) lib/enum.ex:2546: Enum."-reduce/3-lists^foldl/2-0-"/3
    (elixir 1.18.3) lib/enum.ex:987: Enum."-each/2-lists^foreach/1-0-"/2
    (burrito 1.3.0) lib/builder/builder.ex:88: Burrito.Builder.build/1
    (mix 1.18.3) lib/mix/tasks/release.ex:1079: Mix.Tasks.Release.run_steps/1
    (mix 1.18.3) lib/mix/task.ex:495: anonymous fn/3 in Mix

Where can I get the logs it's telling me to look at?

[doawoo]

Hm, that's a really vague transitive error coming from Zig.
I would delete all Zig caches if you were trying burrito using an earlier Zig version.

As for :gl and :wx -- Burrito simply does not support either of those modules out of the box. They're extremely platform dependent NIFs, and cross-compiling Wx is basically impossible using Erlang's build system. In fact it's stated in the Erlang documentation that the Wx application cannot be cross compiled at all and is automatically disabled when using xcomp.

You could potentially build your own ERTS tarball for each platform you support and supply it to your targets (see the README for more details on this).

If possible, could you provide a minimal example repo that produces that transitive failure? I'd be interested in trying to reproduce it on my end.

[begedin]

I can do you one better and give you the repo link itself. The smallish addition of a burrito config is on the burrito branch

https://github.com/begedin/livePixel/tree/burrito

Appreciate your work here, btw