New review comment by ahesford on void-packages repository

https://github.com/void-linux/void-packages/pull/22690#discussion_r522973506

Comment:
You will need to manually copy over the man page, pam config, program config and runit service here. The makefile is poorly written and I wouldn't advise using it. Target dependencies are not defined, so `install-manual` will fail without manually running the `build` target, which you **don't** want to do here.

`xbps-src` provides the `vinstall` function to copy the pam config, program config and runit script. You can use the `vman` function to copy over the manual page. After you install the runit script, you will also need to create a `supervise` link that Void packages expect:
```
ln -s /run/runit/supervise.emptty ${DESTDIR}/etc/sv/emptty/supervise
```