Language support

[martinfouilleul]

• C
  • slim libc shim that is only used internally for stb_truetype, stb_image, and some internal maths.
  • Freestanding version of musl to provide C app developers with a more full-featured standard lib. (Orca libC #58)
• Odin
  • Would be really cool to have. @gingerBill (creator of Odin) started working on some bindings. We'll probably also need someone knowledgeable in Odin in the team to share the workload.
• Zig
  • Official Zig bindings by @rdunnington and @ilidemi: https://github.com/orca-app/orca-zig
    • See issues
    • Prior work: Zig bindings for orca (still WIP) #21
  • @kristoff-it and Andrew Kelley have been writing a zig build script for the Orca runtime and tooling.

We will need to organize bindings in separate repos so that we don't clutter the main repo. App devs would get the main repo and pick the bindings repo for their language of choice, and be set up. This would also allow people to start working on bindings more autonomously.

[martinfouilleul]

Regarding C, I had the hope that we could pull a stripped down version of musl used by Zig's wasm32-freestanding-musl target... except this target actually won't work. You'd need to target wasi and provide the required shims for it to work.
Loris told me that it will work in the future, because Zig will be providing its own libc-compatible interface to Zig's standard library, which has no problem being freestanding.
In the meantime, it seems we'll have to strip down musl of all OS-related stuff ourselves. A slightly less onerous option might be to start from wasi-libc and remove anything requiring wasi "syscalls", since they already made the effort of making the rest of musl work with wasm.

[martinfouilleul]

Point 1 and second comment is solved by our new orca libc thanks to Reuben! (see #58 )
For Odin/Zig/etc bindings see also #68