[sage-devel] Re: posible licence issue raised by GPL-v3

2007-07-30 Thread William Stein
On 7/30/07, Alec Mihailovs <[EMAIL PROTECTED]> wrote: > > the situation is similar to how one can legally use a program from > > bash -- but are there weird legal issues with doing this: > > sage: mathematica(2) + gap(2) > > 4 > > Related to that, I wonder whether implementing something li

[sage-devel] Re: posible licence issue raised by GPL-v3

2007-07-30 Thread Alec Mihailovs
From: "William Stein" <[EMAIL PROTECTED] > the situation is similar to how one can legally use a program from > bash -- but are there weird legal issues with doing this: > sage: mathematica(2) + gap(2) > 4 Related to that, I wonder whether implementing something like number_of_partition

[sage-devel] Re: posible licence issue raised by GPL-v3

2007-07-29 Thread William Stein
On 7/29/07, Alec Mihailovs <[EMAIL PROTECTED]> wrote: > From: "Bobby Moretti" <[EMAIL PROTECTED]> > > > > It would be one thing if SAGE was just a distribution of software, > > with a package management system. But SAGE contains (lots) of code > > that wraps these libraries and provides a unified

[sage-devel] Re: posible licence issue raised by GPL-v3

2007-07-29 Thread Nick Alexander
"William Stein" <[EMAIL PROTECTED]> writes: > On 7/29/07, David Joyner <[EMAIL PROTECTED]> wrote: >> > Does that sound reasonable to sage-devel? >> >> Sounds good to me.. >> >> BTW, anything I contributed can be released under "GPL v2 or later". >> Also, I checked that GAP is distributed that wa

[sage-devel] Re: posible licence issue raised by GPL-v3

2007-07-29 Thread znmeb
[EMAIL PROTECTED] wrote: > Creative Commons creates a legal equivalent of public domain where it doesn't > already exist. At that point, Microsoft can use it, improve / harm it in any > way they like, take all the credit, and turn a profit. It's essentially a > license to relicense it under y

[sage-devel] Re: posible licence issue raised by GPL-v3

2007-07-29 Thread Alec Mihailovs
From: "Bobby Moretti" <[EMAIL PROTECTED]> > > It would be one thing if SAGE was just a distribution of software, > with a package management system. But SAGE contains (lots) of code > that wraps these libraries and provides a unified interface to them. > I'm fairly confident that this falls under

[sage-devel] Re: posible licence issue raised by GPL-v3

2007-07-29 Thread Bobby Moretti
On 7/29/07, Alec Mihailovs <[EMAIL PROTECTED]> wrote: > > From: "Bobby Moretti" <[EMAIL PROTECTED]> > > >> Well, I wouldn't call SAGE a single program. > > > > The issue is complicated, and I doubt a lawyer would agree. > > > > Besides, that's exactly what > >> commercial CAS's do. In particular,

[sage-devel] Re: posible licence issue raised by GPL-v3

2007-07-29 Thread Alec Mihailovs
From: "Bobby Moretti" <[EMAIL PROTECTED]> >> Well, I wouldn't call SAGE a single program. > > The issue is complicated, and I doubt a lawyer would agree. > > Besides, that's exactly what >> commercial CAS's do. In particular, Maple includes gmp and a series of >> other >> programs under separate

[sage-devel] Re: posible licence issue raised by GPL-v3

2007-07-29 Thread Bobby Moretti
On 7/29/07, Justin C. Walker <[EMAIL PROTECTED]> wrote: > > > On Jul 29, 2007, at 18:24 , Alec Mihailovs wrote: > > > > > From: <[EMAIL PROTECTED]> > > > >> > >> Not always so. Verbatim snippet from the horse's mouth: > >> > >> > >> "When we say that GPLv2 and GPLv3 are incompatible, it means the

[sage-devel] Re: posible licence issue raised by GPL-v3

2007-07-29 Thread Justin C. Walker
On Jul 29, 2007, at 18:24 , Alec Mihailovs wrote: > > From: <[EMAIL PROTECTED]> > >> >> Not always so. Verbatim snippet from the horse's mouth: >> >> >> "When we say that GPLv2 and GPLv3 are incompatible, it means there >> is no >> legal way to combine code under GPLv2 with code under GPLv3 i

[sage-devel] Re: posible licence issue raised by GPL-v3

2007-07-29 Thread Bobby Moretti
On 7/29/07, Alec Mihailovs <[EMAIL PROTECTED]> wrote: > > From: <[EMAIL PROTECTED]> > > > > > Not always so. Verbatim snippet from the horse's mouth: > > > > > > "When we say that GPLv2 and GPLv3 are incompatible, it means there is no > > legal way to combine code under GPLv2 with code under GPLv

[sage-devel] Re: posible licence issue raised by GPL-v3

2007-07-29 Thread Alec Mihailovs
From: <[EMAIL PROTECTED]> > > Not always so. Verbatim snippet from the horse's mouth: > > > "When we say that GPLv2 and GPLv3 are incompatible, it means there is no > legal way to combine code under GPLv2 with code under GPLv3 in a single > program. This is because both GPLv2 and GPLv3 are cop

[sage-devel] Re: posible licence issue raised by GPL-v3

2007-07-29 Thread boothby
Not always so. Verbatim snippet from the horse's mouth: "When we say that GPLv2 and GPLv3 are incompatible, it means there is no legal way to combine code under GPLv2 with code under GPLv3 in a single program. This is because both GPLv2 and GPLv3 are copyleft licenses: each of them says, "If

[sage-devel] Re: posible licence issue raised by GPL-v3

2007-07-29 Thread Alec Mihailovs
There is also a possibility to release a distribution under few different licenses - for example, a part as GPL3, a part as GPL 2, and a part as MIT or whatever. That, by the way, would allow including code from Microsoft Research. Alec --~--~-~--~~~---~--~~

[sage-devel] Re: posible licence issue raised by GPL-v3

2007-07-29 Thread boothby
> \begin{RankSpeculationRequest} > Does anyone have a good feel for the impact of adding BSD-, MIT-, or > CCL-licensed content to a base that is licensed under GPL2 (as I > think SAGE is now); or under GPL3? > > My recollection is that it isn't pretty. > \end{RankSpeculationRequest} I forgot to

[sage-devel] Re: posible licence issue raised by GPL-v3

2007-07-29 Thread Justin C. Walker
On Jul 29, 2007, at 3:42 PM, [EMAIL PROTECTED] wrote: >> While I think the goals of the FSF in general and the various >> and sundry versions of the GPL in particular are in many senses >> noble, > > To the contrary, the general theme in GPLv3 seems to be "! > @#$ you, Microsoft and Tivo" reg

[sage-devel] Re: posible licence issue raised by GPL-v3

2007-07-29 Thread boothby
> While I think the goals of the FSF in general and the various > and sundry versions of the GPL in particular are in many senses noble, To the contrary, the general theme in GPLv3 seems to be "[EMAIL PROTECTED] you, Microsoft and Tivo" regardless of any political backlash. About as noble as a

[sage-devel] Re: posible licence issue raised by GPL-v3

2007-07-29 Thread John Cremona
mwrank's GPL statement says version 2 or later! John On 7/29/07, William Stein <[EMAIL PROTECTED]> wrote: > > BTW, anything I contributed can be released under "GPL v2 or later". > > Also, I checked that GAP is distributed that way > > http://www.gap-system.org/Download/copyright.html > > Thank

[sage-devel] Re: posible licence issue raised by GPL-v3

2007-07-29 Thread Justin C. Walker
On Jul 29, 2007, at 12:03 , William Stein wrote: > On 7/29/07, Pablo De Napoli <[EMAIL PROTECTED]> wrote: [snip] > Yes, I cannot release SAGE under GPL V3 until: > >1. Every single component of SAGE, including PARI, > is licensed under a GPL V3 compatible license, and > >2. I get pe

[sage-devel] Re: posible licence issue raised by GPL-v3

2007-07-29 Thread William Stein
On 7/29/07, David Joyner <[EMAIL PROTECTED]> wrote: > > Does that sound reasonable to sage-devel? > > Sounds good to me.. > > BTW, anything I contributed can be released under "GPL v2 or later". > Also, I checked that GAP is distributed that way > http://www.gap-system.org/Download/copyright.html

[sage-devel] Re: posible licence issue raised by GPL-v3

2007-07-29 Thread David Joyner
On 7/29/07, William Stein <[EMAIL PROTECTED]> wrote: > > On 7/29/07, Pablo De Napoli <[EMAIL PROTECTED]> wrote: > > William (and others): > > > > There is a licence issue about Sage raised by GPL-v3, that may be you > > need to consider > > (I'm not a lawyer so that what I'm saying could be wrong)

[sage-devel] Re: posible licence issue raised by GPL-v3

2007-07-29 Thread znmeb
While I think the goals of the FSF in general and the various and sundry versions of the GPL in particular are in many senses noble, I *bitterly* resent the complexity of the GPL, especially version 3. The implication of that complexity is that a programmer who wishes to develop free software must

[sage-devel] Re: posible licence issue raised by GPL-v3

2007-07-29 Thread Pablo De Napoli
Yes, it sounds to be a reasonable plan to me. All of us I think do prefer do coding and mathematics... =) (But I thought that it was something important to be aware of) Pablo On 7/29/07, William Stein <[EMAIL PROTECTED]> wrote: > > On 7/29/07, Pablo De Napoli <[EMAIL PROTECTED]> wrote: > > Wil

[sage-devel] Re: posible licence issue raised by GPL-v3

2007-07-29 Thread William Stein
On 7/29/07, Pablo De Napoli <[EMAIL PROTECTED]> wrote: > William (and others): > > There is a licence issue about Sage raised by GPL-v3, that may be you > need to consider > (I'm not a lawyer so that what I'm saying could be wrong). This comes up in sage-devel about once every other month. Thanks

[sage-devel] Re: posible licence issue raised by GPL-v3

2007-07-29 Thread David Joyner
On 7/29/07, Pablo De Napoli <[EMAIL PROTECTED]> wrote: > > William (and others): > > There is a licence issue about Sage raised by GPL-v3, that may be you > need to consider > (I'm not a lawyer so that what I'm saying could be wrong). As far as I can tell, what you are saying is consistent with