[Assist] geogebra license is GNU GPL

[Isaac David]

I apologise for my late reply Quiliro, it's good to hear you are 
willing to contribute a libre version of Geogebra. Before describing 
the kind of work needed to complete this task I would try to identify 
all the nonfree stuff inside Geogebra's source tree. For instance, here 
are the aformentioned language files which don't permit commercial use:

http://dev.geogebra.org/trac/browser/trunk/geogebra/desktop/src/main/resources/org/geogebra/desktop?order=name#properties

Similarly we need to know whether those nonfree installers are part of 
the source or not. The _license.txt file from that link also reads:

> 4. The GeoGebra language files (including all user interface 
> "translation"
> files in the GeoGebra application and applets), all GeoGebra 
> documentation
> (including  "GeoGebra Help", "GeoGebra Quickstart" and all other
> documentation files found on the GeoGebra webservers) and all GeoGebra
> user interface image and style files (including logos, icons and style
> sheets) are licensed to you under the terms of the Creative Commons
> Attribution-NonCommercial-ShareAlike licence (version 3.0 or later)

Finding those things in the source tree will better tell us whether 
deleting or replacing all that stuff is actually feasible or not.

Le sam. 2 janv. 2016 à 6:37, Quiliro Ordóñez Baca 
<quiliro at riseup.net> a écrit :
> Thank you very much: Isaac, Rudolf, André and Dika Setya for the 
> information.
> 
> I can understand the we could replace:
> GeoGebra installers, web services and language files add-ons
> Then we can have a free Geogebra for Parabola.
> What can I contribute with to include a free version of Geogebra? I 
> speak fluently Spanish and English, I get by in Italian, French and 
> Portuguese. But I do not know how to package. I can learn. But I 
> think that the most eficient would be to use our best talents.
> 
> --
> Quiliro Ordóñez 09876 31031 "La gente simplemente 'confía en mí'. 
> ¡Giles!" -dice Mark Zuckerberg (Presidente de Facebook) Piensa dos 
> veces antes de ponerte en las manos de Mark.
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