These ebuilds come from http://code.google.com/p/gentoo-china-overlay.
If you have some problems, go to the official site first.
audacious-mac : Monkey's Audio Codec plugin for audacious ( http://www.netswarm.net/ )
xlyrics : lyrics display plugin for audacious/amarok ( http://xlyrics.googlecode.com/ )
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