distcc : Distribute compilation of C code across several machines on a network ( https://github.com/distcc/distcc )
icecream : Distributed compiling of C(++) code across several machines; based on distcc ( https://github.com/icecc/icecream )
Add an ebuild in portage :
The ebuild is now in the portage tree.
You can also use layman : emerge layman then layman -a poly-c
For Paludis use this rsync : rsync://gentoo.zugaina.org/poly-c-portage
If you have a problem : ycarus(-at-)zugaina.org