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Re: COIN-OR in Octave

From: John W. Eaton
Subject: Re: COIN-OR in Octave
Date: Mon, 18 Oct 2004 11:36:33 -0400

On 18-Oct-2004, Andrey Romanenko <address@hidden> wrote:

| I see... However, the COIN FAQ section states that a software module under a 
| different
| license does not have to comply with the CPL.

But the GPL says that if you link two pieces of software together and
distribute the result, you must be able to distribute the entire work
under terms that are compatible with the GPL.

| The question is where is
| the border between a module and purely derived work... 

I'm not sure what you mean by "module".  The GPL doesn't make a
distinction between a "module" or a "plugin".  If you want the
interpretation of the FSF, check the section of the GPL FAQ concerning
plugins on the web pages.

| Will the following be okay? Octave creates an AMPL (from netlib) formulation
| and sends it to IPOPT, gets the results and pushes it back to Octave.

The GPL applies if you create a derivative work.  If the communication
is through files, pipes, sockets, etc., and the code licensed under
GPL-incompatible terms is running in a separate process, then there
the GPL doesn't apply (again, see the GPL FAQ).


Octave is freely available under the terms of the GNU GPL.

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