For building embedded systems with gentoo and crossdev, making coreutils, e2fsprogs,... virtuals, that could be fulfilled by busybox, would be a great enhancement. I think, this is, what virtuals are intended to be...
due to the nature of this and just how complicated it can be, we decided sometime ago to no go this route you can use package.provided to fake out things (like coreutils) while using busybox to fullfill the requirements
Hm, soon, I will put all this in some wiki ;-) Is there any possibility to put this information into a profile?
check out `man portage` ... it describes everything
OK, figured it out. I know this with /etc/portage/profile/package.provided, but I didn't know, how it works with an own defined profile. So I tried and it worked. Not nice, but works ;-)