Can't build rust target x86_64-unknown-linux-musl

[simon-fu]

Bug Report

Your environment

• Operating system: Debian 6.1.119
• Node version:
• npm version: 10.9.2
• gcc/clang version: gcc (Debian 12.2.0-14) 12.2.0
• mediasoup version: 3.15.3 (commit 4638d83)
• mediasoup-client version:

Issue description

cargo build --release --target=x86_64-unknown-linux-musl --example echo

  = note: /usr/bin/ld: /root/simon/mediasoup/target/x86_64-unknown-linux-musl/release/deps/libmediasoup_sys-d3efff36dce0438a.rlib(src_unix_core.c.o): in function `uv__nonblock_fcntl':
          core.c:(.text+0xaa4): undefined reference to `fcntl64'
          /usr/bin/ld: core.c:(.text+0xaee): undefined reference to `fcntl64'

[nazar-pc]

I think if you build for musl on non-musl platform like Debian you might need to tweak some things. I don't think musl is propagated to C++ part right now, so I'd recommend to build in Alpine Linux container instead for now.

Labeling as a feature request (cross-compilation) rather than a bug.

[ibc]

Labeling as a feature request (cross-compilation) rather than a bug.

Is this something we can really address? I have no idea about cross-compilation stuff and honestly I don't want that this becomes one of those issues that stay open forever without any real effort on them.

[nazar-pc]

Fair, we can certainly address this. Whether we will is a slightly different questions though.
External contribution will be appreciated here, I suspect some Meson flag will be sufficient to make this work as expected, just need to figure out which one.

[ibc]

But the issue description doesn't even mention Docker or anything about containers.

[ibc]

I mean: if I come to this ticket within next 2 months I will have no idea what it is about.

[nazar-pc]

This has nothing to do with Docker, but running Alpine Linux under Docker can help to bypass this issue (Debian uses Glibc by default and compiling for Musl is a bit less straightforward there).

[ibc]

I don't think this is really something in our side given the similar problems exist out there (with solutions included):

https://stackoverflow.com/questions/72081987/cant-build-for-target-x86-64-unknown-linux-musl