Install musl-tools

[npmccallum]

Do the checklist before filing an issue:

• [x] Is this related to the actions-rs Actions? If you think it's a problem related to Github Actions in general, use GitHub Community forum instead: https://github.community
• [x] You've read the Contributing section about feature requests: https://github.com/actions-rs/.github/blob/master/CONTRIBUTING.md#feature-requests
• [ ] Is this something you can debug and fix? Send a pull request! Bug fixes and documentation fixes are welcome.

(I don't speak TypeScript...)

Motivation

When setting up the toolchain for any target that ends in -linux-musl, please apt install musl-tools as part of the toolchain setup. Rust dependencies that use cc to compile C code will expect musl-gcc to be installed.

Workflow example

No changes needed.

Additional context

musl-gcc is a thin wrapper around GCC that sets things up for compilation on musl. Many Rust packages require it to be installed when building for any musl target.

[hoijui]

Any comments on this? Is this wanted, and just waiting for someone to implement it?

[vojtechkral]

Yes, I would think so. For building against musl libs statically it seems musl-tools are required. Right now I install them using this:

- uses: awalsh128/cache-apt-pkgs-action@v1
  with:
    packages: musl-tools # provides musl-gcc
    version: 1.0

so, not and insurmountable problem, but still would be nice to have them out of the box with actions-rs IMO.

[AraHaan]

Wait, so those musl tools would also allow cmake to cross compile for it with CMakePresets.json as well right?

I found this issue when I need to be able to compile some C code in github actions for these presets:

• linux-x86 (probably end of life so I am ok if I must remove linux-x86 from my presets)
  • musl and rhel versions of this (probably also end of life and probably safe to remove from my presets)
• linux-x64
  • musl and rhel versions of this
• linux-arm
  • musl and rhel versions of this
• linux-arm64
  • musl and rhel versions of this