Build for gnu instead of musl

[t-botz]

Redoing #389 which was cancelled by #554 and reintroduced the error.

Fixes #520

[changeset-bot]

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[t-botz]

no need for strip anymore since Cargo 1.59

[t-botz]

Another small win with this PR is that the binary goes from 7.2MB to 6.5MB...
IMO there's very little reason to build a static binary with musl. fnm is meant for a dev environment supporting node, I can't see how such environment would be missing libc...

[Schniz]

This means vc alpine-based docker images will fail to use fnm. Right?
Can we add a gnu build? Then download it conditionally on the install script if it’s not an alpine Linux?
I wonder if we should rethink the build process and copy from Starship: https://github.com/starship/starship/blob/master/.github/workflows/release.yml

[Schniz]

Ahh and also thank you very much for digging deep and figuring out the issue. Reaaaaally appreciate it 🙌

[t-botz]

This means vc alpine-based docker images will fail to use fnm. Right?

Thats right, I am not sure who does that (fnm in a docker image kind of defy the purpose IMO) but I guess if you ask, you might have encountered the use case.

Can we add a gnu build? Then download it conditionally on the install script if it’s not an alpine Linux?
I wonder if we should rethink the build process and copy from Starship

You mean using a matrix and cross? Seems like a good idea to me and fairly standard.
For the install script may be do it based on ldd --version | grep GLIBC? If no ldd or no GLIBC then use musl build?
(similar to rustup-init.sh)
I can definitely work on that.