DirectFB : Thin library on top of the Linux framebuffer devices ( http://www.directfb.org/ )
string_f : A small library to interchange strings between C and Fortran ( http://www.tddft.org/programs/octopus/wiki/index.php/Libxc:download )
Add an ebuild in portage :
The ebuild is now in the portage tree.
You can also use layman : emerge layman then layman -a dberkholz
For Paludis use this rsync : rsync://gentoo.zugaina.org/dberkholz-portage
If you have a problem : ycarus(-at-)zugaina.org