These ebuilds come from http://overlays.gentoo.org/dev/dirtyepic.
If you have some problems, go to the official site first.
creduce : C-Reduce - a plugin-based C program reducer ( http://embed.cs.utah.edu/creduce/ )
Add an ebuild in portage :
The ebuild is now in the portage tree.
You can also use layman : emerge layman then layman -a dirtyepic
For Paludis use this rsync : rsync://gentoo.zugaina.org/dirtyepic-portage
If you have a problem : ycarus(-at-)zugaina.org