Hi Simon, Thanks for the quick response.
OK, I'll just go ahead and try to integrate my GUI application with GNU Chess. In fact, it is open source too: it is distributed under GPLv3 but with a FLOSS additional permission clause that allows combining it with selected open source licenses which unfortunately aren't compatible with the GPL: http://www.haundrix.com/download/license.html And by the way, I picked GNU Chess exactly because it's open source! I'll post here in case I encounter difficulties talking to GNU Chess. Cheers, Alex Simon Waters wrote: > Alex Ignácio da Silva wrote: >> To the GNU Chess development team, >> >> I would like to know whether it's allowed to redistribute GNU Chess >> along with a third party GUI application to play chess. Since the GNU >> Chess engine would be started as a separate process and communication >> handled through standard input/output pipes, I believe it could be >> considered a separate work independent of the GUI application, as >> suggested by the FSF: >> >> http://www.gnu.org/licenses/gpl-faq.html#MereAggregation >> >> and hence the GPL would not be applied to the GUI interface application. > > Your understanding appears correct to me. > > GNU Chess invoked as a separate process via the Winboard interface is > mere aggregation, and doesn't affect the licensing of other code > distributed with it in this fashion. > > My understanding is that such distribution, from a licensing perspective > is the same as distribution GNU Chess itself. > > As you'll be distributing GNU Chess, you will incur obligations under > the GNU GPLv2, to notify them of their rights to GNU Chess, and to give > them a copy of the source code for GNU Chess (plus any modifications you > make to GNU Chess) on request. But this doesn't affect any other > applications you distribute alongside. > > You are encouraged to distribute your GUI under a free software license, > but there is no obligation. > > > _______________________________________________ > Info-gnu-chess mailing list > [email protected] > http://lists.gnu.org/mailman/listinfo/info-gnu-chess > _______________________________________________ Info-gnu-chess mailing list [email protected] http://lists.gnu.org/mailman/listinfo/info-gnu-chess
