New comment by RunningDroid on void-packages repository

https://github.com/void-linux/void-packages/pull/44038#issuecomment-1569388318

Comment:
I initially tried using Make's `ifdef` statement, but that kept getting fed to `sh` for some reason so I just put the logic in shell. I also patched out the part that puts "help2man is required to generate this file" in the manpage and replaced it with an error.

edit: the build failure is because I tried to use `$CROSS_BUILD` to get the name of the right `qemu-*-static` binary without noticing that `$CROSS_BUILD` includes the -musl suffixes