ROOT for DebianScience
ROOT [http://lists.debian.org/debian-science/2005/08/msg00056.html provides a direct way to build deb packages from the sources] but is not in Debian main.
[http://root.cern.ch/root/License.html ROOT License]
[http://lists.debian.org/debian-legal/2003/01/msg00278.html Debian legal thread] and [http://lists.debian.org/debian-science/2005/08/msg00085.html why] it is never too much to be careful about licenses. Some [http://lists.debian.org/debian-science/2005/08/msg00087.html fix] to the problem seems to be in sight.
Do not miss coming [http://indico.cern.ch/conferenceDisplay.py?confId=a0522 ROOT international workshop].