On Feb 24, 2014 2:15 PM, "Volker Braun" <vbraun.n...@gmail.com> wrote: > > Is there actually somebody that replaces half a dozen libraries with almost decade-old versions and then uses that to run/develop Sage? It might have been possible back then, but it sure sounds extremely unlikely now. > >
Nope, nobody does that now. > > On Monday, February 24, 2014 10:37:18 PM UTC+1, William wrote: >> >> On Mon, Feb 24, 2014 at 12:20 PM, Volker Braun <vbrau...@gmail.com> wrote: >> > IMHO GPLv3+ is the recommended license by the FSF. What exactly is there to >> > fix? >> >> The Sage developers decided when GPL3 was coming out (years ago) to >> keep the library GPLv2+ compatible, but the distribution has to be >> GPLv3 due to the FSF switching all their software from v2+ to v3+, and >> some authors being afraid of v3+ so going to v2+v3. There were >> extensive discussions on the mailing list back then. The gist was >> that v3 adds "an explicit patent license, according to which people >> who license a program under the GPL license both copyrights as well as >> patents..." (see >> http://www.ifross.org/en/what-difference-between-gplv2-and-gplv3). >> Because of this, there are potential corporate users of Sage who are >> not allowed to touch (or even look at) the Sage library if it is >> GPLv3+, but have no trouble with the library as GPLv2+. We decided >> that we don't want to exclude them from at least that option. We also >> wanted to keep open at least the option to distribute a version of >> Sage under GPLv2 (though that would probably be really, really hard >> today). >> >> -- William >> >> -- >> William Stein >> Professor of Mathematics >> University of Washington >> http://wstein.org > > -- > You received this message because you are subscribed to the Google Groups "sage-devel" group. > To unsubscribe from this group and stop receiving emails from it, send an email to sage-devel+unsubscr...@googlegroups.com. > To post to this group, send email to sage-devel@googlegroups.com. > Visit this group at http://groups.google.com/group/sage-devel. > For more options, visit https://groups.google.com/groups/opt_out. -- You received this message because you are subscribed to the Google Groups "sage-devel" group. To unsubscribe from this group and stop receiving emails from it, send an email to sage-devel+unsubscr...@googlegroups.com. To post to this group, send email to sage-devel@googlegroups.com. Visit this group at http://groups.google.com/group/sage-devel. For more options, visit https://groups.google.com/groups/opt_out.
