In particular, it would be useful to know if it's possible to install it avoiding the risk of breaking the one from the repositories (maybe using checkinstall, or installing it in a different location?)
I found the same question and the related answer on launchpad
mkdir build cd build cmake .. -DCMAKE_INSTALL_PREFIX=~/staging make install And then in a VT (Ctrl+Alt+F1): cd ~/staging env DISPLAY=:0 LD_LIBRARY_PATH=./lib ./bin/compiz --replace composite opengl move resize decor compiztoolbox mousepoll wall expo animation switcher
That way you're not affecting your system installation. Everything runs from ~/staging.