Hi, Here is a link to an interesting thread on the OpenModelica message board about Sage....
---------- Forwarded message ---------- From: pepe <balazovic.pe...@gmail.com> Date: Mon, Apr 27, 2009 at 8:05 AM Subject: Re: OpenModelica To: William Stein <wst...@gmail.com> Hello William, I've had a question posted about licensing of OpenModelica on their "mail archive" forum. http://www.mail-archive.com/openmodelicainter...@ida.liu.se/index.html#00618 One of the active member responded, excerpt: #Anyway, it would be useful with more interaction/feedback #from the SAGE project. I'd like to point you on their thread and it might be worthy to comment by you! Thanks for you clarification. Regards, pB. P.S. I am just user which is finding SAGE and OpenModelica useful, On Apr 24, 5:46 pm, William Stein <wst...@gmail.com> wrote: > On Fri, Apr 24, 2009 at 8:43 AM, Alfredo Portes <doyenatc...@gmail.com> wrote: > > On Fri, Apr 24, 2009 at 11:30 AM, William Stein <wst...@gmail.com> wrote: > > >>> Does it > >>> make sense to integrate it? Is it even feasible to do that? > > >> No, it would be a copyright violation to integrate OpenModelica and > >> Sage in any way. OpenModelica is licensed under a GPL-incompatible > >> license. I found the statement > >> " [Comment: note that the OSMC Public License, also its OSMC-GPL > >> mode, is different from > >> and incompatible with GPL. Therefore it is not possible to include > >> any GPL-licensed > >> contribution into OpenModelica.]" > > >> here > > >>http://www.ida.liu.se/labs/pelab/modelica/OpenModelica/Documents/LICE... > > > Hi William, > > > Sorry didn't want to spam the list and probably I am wrong. > > > What I understand from reading the license is that it is GLP3 plus > > the condition that if another program calls it must be open source > > (which it is not a GLP > > requirement). I see that the contributions cannot go back to > > OpenModelica as GPL3, but > > I do not see how it cannot be used or integrated with SAGE because of > > this. Again I am > > probably wrong. > > > Regards, > > > Alfredo > > Sage cannot include any code that is not licensed GPLv2+ compatible > (well, we also include some GPLv3+ code). As OpenModelica's license > is very much not GPLv3+ compatible, it can't be included with Sage. > Any license that is GPLv3+additional conditions is -- by definition -- > not GPLv3 compatible. I like that in the OpenModelica license they > don't try to be sneaky -- they are crystal clear that they are adding > conditions, hence making their code not GPL-compatible. > > Of course, I wish the OpenModelica author's had read and taken to > heart the article "Make Your Open Source Software GPL-Compatible. Or > Else.": > http://www.dwheeler.com/essays/gpl-compatible.html > > William -- William Stein Associate Professor of Mathematics University of Washington http://wstein.org --~--~---------~--~----~------------~-------~--~----~ To post to this group, send email to sage-devel@googlegroups.com To unsubscribe from this group, send email to sage-devel-unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/sage-devel URLs: http://www.sagemath.org -~----------~----~----~----~------~----~------~--~---
