On Thu, Aug 13, 2009 at 5:58 PM, Ondrej Certik<ond...@certik.cz> wrote: > > On Thu, Aug 13, 2009 at 5:41 PM, William Stein<wst...@gmail.com> wrote: >> >> On Thu, Aug 13, 2009 at 12:37 PM, Minh Nguyen<nguyenmi...@gmail.com> wrote: >>> >>> Hi folks, >>> >>> We're currently shipping cvxopt 0.9 which is licensed under GPLv3+. >>> That is a standard spkg. My understanding is that code in the Sage >>> library should be GPL compatible with at least GPLv2. What about >>> licensing terms for standard spkg's? Can we accept a package whose >>> code is under GPLv3 or above? Here is what the file >>> SAGE_ROOT/COPYING.txt says: >>> >>> "Every component of Sage except jsmath is licensed under a GPL v2 (or >>> later) compatible license." >> >> The way you're reading this isn't true since there are already several >> GPLv3 packages in Sage, including GSL, the GNUtls stuff, and maybe >> more (not sure). When that statement was written is was meant to say >> that every component of Sage is licensed under a license L such that L >> is GPLvx compatible for *some* x >= 2. You guys are interpreting >> this as x=2. >> >> I think the statement should be changed to the following, which is >> hopefully clearer: "Most components of Sage are licensed under a GPL >> version 3 compatible license. The only exception at present is >> jsmath, which is a javascript library run separately from Sage that is >> licensed under the Apache license." > > According to this: > > http://www.gnu.org/philosophy/license-list.html#GPLCompatibleLicenses > > the Apache license is also compatible with GPL 3. >
You're right. So we should just write "All components of Sage are licensed under a GPL (version 3) compatible license." Nice and simple :-) William --~--~---------~--~----~------------~-------~--~----~ 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 URLs: http://www.sagemath.org -~----------~----~----~----~------~----~------~--~---
