Mike M. Volokhov wrote:
> Another thing (but some offtopic) is even if I include dependency on
> pkgtools/rc.subr, it shows me message about unavailabilty, and then
> continues build process. In my case this not so critical, but it is
> possible to stop build process if some dependent package isn't availabe
> for my platform?
> 

It was described separately with subject "Depenent, but not available packages".

--
Mishka.