These ebuilds come from http://gentoo.zugaina.org/.
If you have some problems, go to the official site first.
duma : DUMA (Detect Unintended Memory Access) is a memory debugging library. ( http://duma.sourceforge.net/ )
google-perftools : Google profiling tools. ( http://goog-perftools.sourceforge.net/ )
Add an ebuild in portage :
The ebuild is now in the portage tree.
You can also use layman : emerge layman then layman -a zugaina
For Paludis use this rsync : rsync://gentoo.zugaina.org/zugaina-portage
If you have a problem : ycarus(-at-)zugaina.org