bibtexu : 8-bit Implementation of BibTeX 0.99 with a Very Large Capacity ( http://tug.org/texlive/ )
luatex : An extended version of pdfTeX using Lua as an embedded scripting language. ( http://www.luatex.org/ )
Add an ebuild in portage :
The ebuild is now in the portage tree.
You can also use layman : emerge layman then layman -a argent-main
For Paludis use this rsync : rsync://gentoo.zugaina.org/argent-main-portage
If you have a problem : ycarus(-at-)zugaina.org