Add support for aarch64 musl

[zanieb]

Closes #87

Does not include the +static variant as I was having a hard time getting the bzip2 build passing. I'll open a new issue to track that.

Related #484

[zanieb]

The failure is

m4> checking for gcc... /usr/bin/x86_64-linux-musl-gcc
m4> checking whether the C compiler works...
m4> no

which is unsurprising

[jakeybrown92]

Do we know when is likely to be released? currently blocking running on latest arm64 on mac and inside our arm64 runner builds

docker run -it --platform=linux/arm64 ghcr.io/astral-sh/uv:python3.10-alpine uv python install 3.12
error: No download found for request: cpython-3.12-linux-aarch64-musl

[zanieb]

@jakeybrown92 not anytime soon, it's non-trivial as mentioned several times (e.g., #87 (comment)).

[jakeybrown92]

@zanieb fair enough.. I thought you meant the fix was non trivial. So there isn't currently any workaround when using alpine on latest arm64?

[zanieb]

I would use the Python versions from the distribution instead of the uv managed ones for now.

[jakeybrown92]

@zanieb okay thanks. We're currently doing that but just wanted to explore UV, but don't really want to change OS. No worries. Appreciate the replies

[zanieb]

Honestly I don't understand why we need to be explicit about this.

Without this, the bzip2 and openssl builds fail with missing symbols (it's possible more do too, I didn't play whackamole for long).

[geofft]

This seems fine with me if you think it's in a state to ship. We can throw "learn how compiler-rt works" onto the todo list...