I have been compiling clients for use under Ubuntu and Fedora for a few years. Under Ubuntu, up to the latest releases, the instructions at http://dev.ryzom.com/projects/ryzom/wiki/BuildForLinuxCmake work well. The only place where it gets a little interesting is downloading http://hg.kervala.net/packaging/file and compiling libwww and libsquish.
The compiled client works perfectly though and I would recommend it over the one from the download centre, or any other generic one.
The compiled client works perfectly though and I would recommend it over the one from the download centre, or any other generic one.