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/LICENSE.txt > > 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 --~--~---------~--~----~------------~-------~--~----~ 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 -~----------~----~----~----~------~----~------~--~---
