On Thu, May 7, 2009 at 5:41 PM, Brian Granger <ellisonbg....@gmail.com> wrote: > * The JPEG stands on its own and can be "used" independently of GIMP.
Beware... copyright law is more about "copying" and "distribution", than about "use". Besides, when I post a notebook, or publish a sage script in a book, I'm not using Sage, anyways... Moreover, when I read the script (e.g. reading the book for learning or fun), I am "using" the script independently of Sage. > * The part of GIMP that is licensed under the GPL is its source code. > I am not sure, but I think it is C++. Derived works of GIMP must > therefore also be C++ programs or a program in another language that > is able of directly linking to and calling C++. Auch... then, if I take GIMP source code, and carefully translate it 100% into, say... lisp, then the resulting work is not a C++ program, and therefore not a derived work. BTW this is a braindead implementation of lisp which cannot directly link to and call C++ (in case it matters). ---- By the way, a technical point which may not be that relevant but which causes some confusion: Say I take source code from your GPLed program, and use it in my own code (no doubt a derived work). Then I distribute my program without a license, or with a GPL-incompatible license. Does it follow that my program is GPL? I think NOT. It only follows that I may be infringing your copyright, because you never gave me permission to do that. You would need to sue me, and then I could "get away" by just removing your code from my program and paying you damages for all the distribution that I did so far without your authorization. I wouldn't be forced to GPL my code in any case. Gonzalo --~--~---------~--~----~------------~-------~--~----~ 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 -~----------~----~----~----~------~----~------~--~---
