New comment by Duncaen on void-packages repository

https://github.com/void-linux/void-packages/pull/37317#issuecomment-1140300107

Comment:
Works fine, you should be using a musl masterdir when cross compiling with musl.

```
./xbps-src -m masterdir-musl binary-bootstrap x86_64-musl
./xbps-src -m masterdir-musl pkg firefox
./xbps-src -m masterdir-musl -a aarch64-musl pkg firefox
```