New review comment by waynevanson on void-packages repository

https://github.com/void-linux/void-packages/pull/27961#discussion_r597494357

Comment:
> please look at README.md on how to do native builds of i686 and x86_64-musl on x86_64 host.

Thank you for this redirection, it is eye opening.

I've triggered native compiling with `x86_64-musl`, `aarch64` and `i686`.

- [x] `x86_64-musl` compiles.
- [ ] `aarch64` won't let me start compiling.
```sh
$ ./xbps-src -m masterdir-aarch64-musl pkg haskell-language-server
ERROR Failed to execute command /void-packages/xbps-src (Exec format error)
```
- [ ] `i686` has a build error when building Haskell's `Maybe`module. When the site is online, I'll be forwarding the issue to them. Currently the site returns a 502: https://gitlab.haskell.org/