dev-libs/xmlwrap has http://pmade.org/software/xmlwrapp/ as HOMEPAGE and http://pmade.org/software/xmlwrapp/download/${P}.tar.gz as download location. pmade inc. changed their website and there is not a single word about xmlwrap on the new one.
From the current ebuild in the tree: *snip* DESCRIPTION="modern style C++ library that provides a simple and easy interface to libxml2" HOMEPAGE="http://sourceforge.net/projects/xmlwrapp/" SRC_URI="mirror://sourceforge/${PN}/${P}.tgz" *snip*