On 09/02/2011 14:50, Scott Howard wrote: >> BTW, here's what geogebra's download page >> (http://www.geogebra.org/cms/en/download) says: "You are free to >> copy, distribute and transmit GeoGebra for non-commercial >> purposes". >> >> Isn't this a flagrant violation of the DFSG (Item 6, "No >> Discrimination Against Fields of Endeavor") ? > > That is a perfect example of how Debian does a "value add" to their > packages. The full license is at: > http://www.geogebra.org/download/license.txt and the debian copyright > is: > http://packages.debian.org/changelogs/pool/main/g/geogebra/geogebra_3.2.46.0+dfsg1-1/geogebra.copyright > > Only the installer is CC-BY-SA-NC (which is not DFSG free), so the > debian maintainer removed the -NC code so the remaining files are > all GPL-2+ and CC-BY-SA. You can see the +dfsg in the package > version, indicating that someone did work to make it dfsg. That's why > we'd need the source code and license for each jar, but situations > like that are very common. There is more: in the source codebase there are also some .java files with a completely non free license. I had to find some replacement code for them and patch the code in order to fix that. http://patch-tracker.debian.org/patch/series/view/geogebra/3.2.44.0+dfsg1-2/patch/flanagan_nonfree.diff I tried to convince upstream that the jarball on their site is not usable, because it contains code under two non compatible licenses (GPL and a non free license). They didn't care, so now someone using their WebStart application could be violating a copyright law. Instead, Debian version is completely free (unless I've missed something; but I looked at the code more and more times, so I really hope not). Giovanni. -- Giovanni Mascellani <mascellani@poisson.phc.unipi.it> Pisa, Italy Web: http://poisson.phc.unipi.it/~mascellani Jabber: g.mascellani@jabber.org / giovanni@elabor.homelinux.org
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