These ebuilds come from http://gentoo.zugaina.org/.
If you have some problems, go to the official site first.
cairomm : C++ wrapper for the cairo graphics library. ( http://cairographics.org/cairomm )
irate-libcpp : C++ library for irate ( http://irate.sf.net )
libxmlpp : C++ wrapper for the libxml2 XML parser library ( http://libxmlplusplus.sourceforge.net/ )
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