[ Thanks to Dmitri
Popov for this link. ]
“btnx comes in two parts: the btnx daemon that does the
behind-the-scenes work of managing mouse buttons events, and the
btnx-config tool, a graphical front-end that helps configuring
mouse button actions. btnx Web site provides packages for Ubuntu
and openSUSE as well as source code archives for other
distributions. As it often happens, the packages are a step behind
the source code distribution, so if you want to install the latest
and greatest version of btnx, you have to go the usual “./configure
make make install” route.”