libtimerpool : A thread-safe and portable c++ library which makes easy having lots of timers in an application ( http://timerpool.sourceforge.net )
libunixsignal : A file descriptor associated with a unix signal ( http://github.com/dgoncharov/libunixsignal )
Add an ebuild in portage :
The ebuild is now in the portage tree.
You can also use layman : emerge layman then layman -a xgr
For Paludis use this rsync : rsync://gentoo.zugaina.org/xgr-portage
If you have a problem : ycarus(-at-)zugaina.org