These ebuilds come from http://github.com/sjnewbury/multilib-overlay.
If you have some problems, go to the official site first.
emul-linux-x86-baselibs : Metapackage to provide 32bit libraries via multilib ( http://www.gentoo.org/ )
emul-linux-x86-gtklibs : Metapackage to provide 32bit libraries via multilib ( http://www.gentoo.org/ )
emul-linux-x86-medialibs : Metapackage to provide 32bit libraries via multilib ( http://www.gentoo.org/ )
emul-linux-x86-opengl : Metapackage to provide 32bit libraries via multilib ( http://www.gentoo.org/ )
emul-linux-x86-qtlibs : Metapackage to provide 32bit libraries via multilib ( http://www.gentoo.org/ )
emul-linux-x86-sdl : Metapackage to provide 32bit libraries via multilib ( http://www.gentoo.org/ )
emul-linux-x86-soundlibs : Metapackage to provide 32bit libraries via multilib ( http://www.gentoo.org/ )
emul-linux-x86-xlibs : Metapackage to provide 32bit libraries via multilib ( http://www.gentoo.org/ )
wine : free implementation of Windows(tm) on Unix ( http://www.winehq.org/ )
Add an ebuild in portage :
The ebuild is now in the portage tree.
You can also use layman : emerge layman then layman -a multilib
For Paludis use this rsync : rsync://gentoo.zugaina.org/multilib-portage
If you have a problem : ycarus(-at-)zugaina.org