New comment by pullmoll on void-packages repository

https://github.com/void-linux/void-packages/pull/27412#issuecomment-752274271

Comment:
For some reason that didn't work in my branch.
Calling `./xbps-src -a aarch64 -t -E -N pkg cross-x86_64-linux-gnu` e.g. tried to build it - and failed.
Perhaps the `nocross=yes` is unset somewhere after sourcing the environment.