That should read "switching MPFR to LGPL v3+" not "switching MPFR to
LGPL". Sorry for the typo.

Bill.

On 6 Mar, 03:28, Bill Hart <goodwillh...@googlemail.com> wrote:
> TomTom is apparently being sued by Microsoft for alleged violation of
> 8 of their patents. Five of these patent issues relate to proprietary
> TomTom software, not open source.
>
> The remaining patents are to do with long file names, the FAT file
> system and the use of these systems on FLASH EPROM devices.
>
> Specifically TomTom uses the DosFSTools program, which is part of
> linux. As I understand it, they use this to provide a way of updating
> their firmware.
>
> Now the GPL v2 section 7 apparently already prohibits TomTom from
> doing a cross-licensed deal with MS (as many companies are alleged to
> have done over this issue). If they do the deal, then they are obliged
> to stop distributing the software. That would kill the business as
> they would have no way of distributing updates to their firmware.
>
> The DosFSTools program is under GPL v3 which also disallows this.
>
> What on earth this has to do with MPFR switching to LGPL I do not
> know.
>
> Switching MPFR to LGPL v3+ certainly sends a clear message to the
> folks at Microsoft Research and indirectly to the folks who produce
> the GPL v2+ version of Sage that is used there.
>
> Let's clear up another misconception here. GPL v3+ software is NOT
> banned from Sage. This is explicitly stated online. It just doesn't
> get included in the GPL v2+ version of Sage, so that the folks at MSR
> can use it. Those who wish to penalise M$, please go ahead and change
> your licenses. It works!
>
> Bill.
>
> On 5 Mar, 18:10, Michel <michel.vandenbe...@uhasselt.be> wrote:
>
> > On Mar 5, 7:02 pm, Robert Bradshaw <rober...@math.washington.edu>
> > wrote:
>
> > > On Mar 5, 2009, at 5:27 AM, Michel wrote:
>
> > > > Hi all,
>
> > > > Maybe it is time for Sage to drop its ban on GPL3 code?
>
> > > This is a topic that we will certainly be revisiting in the future,  
> > > but I see no reason it is imperative to do so now.
>
> > > As long as backwards compatibility is maintained with MPFR 3.0, it  
> > > will be easy to create a newer spkg, and those stuck in GPL2-only  
> > > land will fall behind.
>
> > > > After all there is the lawsuit of Microsoft against TomTom.
>
> > > > If Microsoft does not behave nicely with people using open source
> > > > software there is zero reason to be nice to them.
>
> > > It is not a question of politics or personal opinions about  
> > > Microsoft. The fact is that, as of right now at least, a lot of  
> > > people out there are using Windows. Like it or not, In order to  
> > > provide a viable alternative to Magma, Maple, Mathematica and Matlab  
> > > we *need* a native Windows port. Microsoft Research is helping fund  
> > > such a project, and we are reciprocating by providing something they  
> > > can use.
>
> > But as I understand it, it is Microsoft that is blocking the inclusion
> > of GPL3 code into Sage (it was said on this list people paid by
> > Microsoft are not
> > allowed to run GPL3 code). If that is indeed the case it seems
> > Microsoft's help with the
> > Windows port is not helpful at all....
>
> > Michel
>
> > > - Robert
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