These ebuilds come from http://catmur.co.uk/gentoo/.
If you have some problems, go to the official site first.
invoice : LaTeX package used to generate invoices ( ftp://ibiblio.org/pub/packages/TeX/macros/latex/contrib/supported/ )
minionpro : Compatibility package for using Adobe's MinionPro fonts in TeX ( http://developer.berlios.de/projects/minionpro )
myriadpro : Adobe Myriad font for LaTeX ( http://www.tex.ac.uk/tex-archive/fonts/metrics/w-a-schmidt/ )
realcalc : Tex macros for real arithmetic calculations ( ftp://ibiblio.org/pub/packages/TeX/macros/latex/contrib/supported/ )
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