[Ecls-list] GMP -> MPIR
Bruce-Robert Fenn Pocock
brpocock at star-hope.org
Thu Sep 5 18:26:08 UTC 2013
On Thu, Sep 5, 2013 at 1:23 PM, Peter Keller <psilord at cs.wisc.edu> wrote:
> On Thu, Sep 05, 2013 at 06:38:36PM +0200, Waldek Hebisch wrote:
> > Juan Jose Garcia-Ripoll wrote:
> > >
> > > Note that I do not intend to change the interface. ECL would continue
> > > to build with GMP, and for platforms that make it easy to pull in
> > > arbitrary software (Linux *BSD, etc) this is the recommended option.
> > > However, elsewhere we need a library that can be packed together with
> > > ECL and which does not have license problems -- GMP switched to a more
> > > restrictive license and this means I cannot upgrade ECL to use newer
> > > versions.
> > Could you explain this? Looking at GMP site I see that they
> > claim licence to be LGPL v3+. Looking at MPIR site I see
> > the same. So what is different?
> Actually download the most recent GMP version and look at the license. It
> doesn't appear to be LGPL anymore--instead it is GPL v3.
On what branch?
The sources in Mercurial all seem to have the typical LGPL notice in the
README and individual .c files — am I missing something?
The GNU MP Library is free software; you can redistribute it and/or modify
> it under the terms of the GNU Lesser General Public License as published
> the Free Software Foundation; either version 3 of the License, or (at your
> option) any later version.
OTOH, I have “heard legends” that MPIR is “easier to compile” for Windows.
I have no direct knowledge either way, but that would be a rather
compelling reason to support both, I'd imagine.
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