On Jan 18, 2008 11:51 AM, <[EMAIL PROTECTED]> wrote: > > libjpeg is developed by the Independant Jpeg Group, and bears the > super-permissive license: > > > """ > This software is copyright (C) 1991-1998, Thomas G. Lane. > All Rights Reserved except as specified below. > > Permission is hereby granted to use, copy, modify, and distribute this > software (or portions thereof) for any purpose, without fee, subject to these > conditions: > (1) If any part of the source code for this software is distributed, then this > README file must be included, with this copyright and no-warranty notice > unaltered; and any additions, deletions, or changes to the original files > must be clearly indicated in accompanying documentation. > (2) If only executable code is distributed, then the accompanying > documentation must state that "this software is based in part on the work of > the Independent JPEG Group". > (3) Permission for use of this software is granted only if the user accepts > full responsibility for any undesirable consequences; the authors accept > NO LIABILITY for damages of any kind. > > These conditions apply to any software derived from or based on the IJG code, > not just to the unmodified library. If you use our work, you ought to > acknowledge us. > """ > > This is clearly GPL-compatible. Furthermore, libjpeg is incredibly stable, > with its last release in 1998, and tiny at 599k. Is there some issue with it > that I don't know about? >
There used to be a huge *patent* issue with the algorithms that resulted in multimillion dollar lawsuits. Then a champion of open source came and saved the day (look it up) :-). Now that patent stuff is gone. libjpeg is not in Sage only because nobody has needed it yet. I made an experimental spkg for it a long time ago -- it's called libjpeg-6b.spkg and it's listed under experimental spkg's. William --~--~---------~--~----~------------~-------~--~----~ To post to this group, send email to sage-devel@googlegroups.com To unsubscribe from this group, send email to [EMAIL PROTECTED] For more options, visit this group at http://groups.google.com/group/sage-devel URLs: http://www.sagemath.org -~----------~----~----~----~------~----~------~--~---
