Feature request: allow static linking to libasound about alsa-sys

[ssssam]

Right, I wasn't sure how to do this, but a feature flag makes sense. When I get some time I will do a PR.

[diwic]

A quick googling yields this result, might be helpful? https://stackoverflow.com/questions/61934997/undefined-reference-to-stat-time64-when-cross-compiling-rust-project-on-mu

[ssssam]

Thanks for the pointer! This suggests that changing .statik(true) should just work, and something about my toolchain / sysroot is broken.

I am building with Buildroot 2021.08, which has Musl 1.22 and Rust 1.54. I have just spotted that Buildroot doesn't build the rust-std libraries itself, it downloads them from https://static.rust-lang.org/dist/rust-std-1.54.0-armv7-unknown-linux-musleabihf.tar.xz and looking at the contained liblibc-e1ae72f87d6a487b.rlib file, this might indeed contain a statically linked copy of Musl 1.1.

In which case, while alsa-sys could add support for static linking now, it might not be useful until rust-lang/rust#72274 is completed.

[diwic]

Feel free to add a PR that adds support for static linking, I suppose this would be implemented as a feature not enabled by default?

[cybersoulK]

@ssssam @diwic does this mean that i cannot manually compile alsa lib on an ubuntu machine and link it with cargo-zigbuild on my mac??
I have been trying for days to make it work. and it compiles and links successfuly, just to segfault on my players...

(the target is x86_64-unknown-linux-gnu)