These ebuilds come from https://github.com/l29ah/booboo.
If you have some problems, go to the official site first.
commoncpp2 : GNU Common C++ is a C++ framework offering portable support for threading, sockets, file access, daemons, persistence, serial I/O, XML parsing, and system services ( http://www.gnu.org/software/commoncpp/ http://svn.savannah.gnu.org/viewvc/trunk/commoncpp2 )
Add an ebuild in portage :
The ebuild is now in the portage tree.
You can also use layman : emerge layman then layman -a l29ah
For Paludis use this rsync : rsync://gentoo.zugaina.org/l29ah-portage
If you have a problem : ycarus(-at-)zugaina.org