[sage-devel] Re: Including GPLv3+ code in Sage (2)
On 2/26/11 9:20 AM, David Kirkby wrote: On 26 February 2011 13:57, Jeroen Demeyerjdeme...@cage.ugent.be wrote: On 2011-02-26 14:30, David Kirkby wrote: On 26 February 2011 12:45, David Joynerwdjoy...@gmail.com wrote: On Sat, Feb 26, 2011 at 7:19 AM, David Kirkbydavid.kir...@onetel.net wrote: So it seems to me we need to upgrade to GPL 3, but then that would stop us using some code which is GPL 2 only. It seems a catch 22. Which standard packages are GPL2 only? I didn't know there were any. Just a search of the COPYING file shows:at least the following appear to be GPL 2 only. I've not investigated these thoroughly, though. At least Mercurial and PARI are GPLv2+. But for example R is GPLv2 only. Are you sure about Mercurial and Pari? http://mercurial.selenic.com/about/ says Mercurial is free software licensed under the terms of the GNU General Public License Version 2. If one clicks the link to the license http://www.gnu.org/licenses/gpl-2.0.txt it says GPL 2, with no mention of GPLv2+, or any later version, so I'm unsure how you arrive at that. That's confusing, because the FAQ says GPLv2+: http://mercurial.selenic.com/wiki/License#What_is_Mercurial.27s_license.3F Jason -- To post to this group, send an email to sage-devel@googlegroups.com To unsubscribe from this group, send an email to sage-devel+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/sage-devel URL: http://www.sagemath.org
Re: [sage-devel] Re: Including GPLv3+ code in Sage (2)
On 26 February 2011 16:34, Jason Grout jason-s...@creativetrax.com wrote: On 2/26/11 9:20 AM, David Kirkby wrote: On 26 February 2011 13:57, Jeroen Demeyerjdeme...@cage.ugent.be wrote: At least Mercurial and PARI are GPLv2+. But for example R is GPLv2 only. Are you sure about Mercurial and Pari? http://mercurial.selenic.com/about/ says Mercurial is free software licensed under the terms of the GNU General Public License Version 2. If one clicks the link to the license http://www.gnu.org/licenses/gpl-2.0.txt it says GPL 2, with no mention of GPLv2+, or any later version, so I'm unsure how you arrive at that. That's confusing, because the FAQ says GPLv2+: http://mercurial.selenic.com/wiki/License#What_is_Mercurial.27s_license.3F Jason True, it is confusing - as is this whole GPL 2/3 mess created by the FSF. I'm inclined to believe the FAQ, which is a Wiki, but note that is Wiki which anyone in the world can edit, whereas the page I referenced, which says only GPL 2 http://mercurial.selenic.com/about/ can only be edited by a select number of people. Dave -- To post to this group, send an email to sage-devel@googlegroups.com To unsubscribe from this group, send an email to sage-devel+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/sage-devel URL: http://www.sagemath.org
[sage-devel] Re: Including GPLv3+ code in Sage (2)
On 2/26/11 10:52 AM, David Kirkby wrote: On 26 February 2011 16:34, Jason Groutjason-s...@creativetrax.com wrote: On 2/26/11 9:20 AM, David Kirkby wrote: On 26 February 2011 13:57, Jeroen Demeyerjdeme...@cage.ugent.bewrote: At least Mercurial and PARI are GPLv2+. But for example R is GPLv2 only. Are you sure about Mercurial and Pari? http://mercurial.selenic.com/about/ says Mercurial is free software licensed under the terms of the GNU General Public License Version 2. If one clicks the link to the license http://www.gnu.org/licenses/gpl-2.0.txt it says GPL 2, with no mention of GPLv2+, or any later version, so I'm unsure how you arrive at that. That's confusing, because the FAQ says GPLv2+: http://mercurial.selenic.com/wiki/License#What_is_Mercurial.27s_license.3F Jason True, it is confusing - as is this whole GPL 2/3 mess created by the FSF. I'm inclined to believe the FAQ, which is a Wiki, but note that is Wiki which anyone in the world can edit, whereas the page I referenced, which says only GPL 2 http://mercurial.selenic.com/about/ can only be edited by a select number of people. Yes, it sounds like the confusion should be reported upstream to the Mercurial folks. Jason -- To post to this group, send an email to sage-devel@googlegroups.com To unsubscribe from this group, send an email to sage-devel+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/sage-devel URL: http://www.sagemath.org
