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Re: Xoctave - Human interface to GNU Octave


From: Francesco Potorti`
Subject: Re: Xoctave - Human interface to GNU Octave
Date: Tue, 23 Jun 2009 22:00:49 +0200

>> No, this is not a problem either.  Mere aggregation on a distribution
>> medium is not covered by the GPL.  Only thing that matters is the
>> interaction mechanism.  If Xoctave uses pipes to communicate with
>> Octave, they are two very clearly separated programs, and no GPL license
>> issues can exist.
>>   
>Yes this is true for a distribution where XOctave and Octave are clearly 
>different products, but to take a GPLed code package it a wrapper that 
>isn't GPLed and then distribute the lot as a single product definitely 
>is... The same issue was brought up with the MEX interface to Octave and 
>its the same situation there, see the FAQ in 3.2.0.

The MEX interface is somewhat intimate with Octave's internals and
requires linking.  On the other hand, pipes are the most "distant"
interface that you can think of, with the exception of parameter passing
via command line, so it is a different case.  A more detailed discussion
is here:
 <http://www.gnu.org/licenses/gpl-faq.html#MereAggregation>.

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