New comment by ipkalm on void-packages repository

https://github.com/void-linux/void-packages/pull/30762#issuecomment-837304242

Comment:
> Yes. But, as you said, it's a multi-main repo, I'm not sure if it would build at all without the custom do_build.

I think it impossible.
In freebsd ports I saw this:
```
GO_TARGET=	./main:v2ray \
		./infra/control/main:v2ctl
```  
For each package we can specify name for output files. But I didn't find similar feature for xbps template.