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Bug#395573: Visit: License Problems with SILO



On Sat, 7 Nov 2009 20:10:07 +0100 Francesco Poli wrote:

> On Sat, 31 Oct 2009 23:34:31 +0100 Francesco Poli wrote:
> 
> [...]
> > On Sat, 24 Oct 2009 13:20:57 +0100 Alastair McKinstry wrote:
> [...]
> > > I've been looking at packaging SILO, a mandatory dependency of VisIt.
> [...]
> > This seems to be very awkward: a Free Software application (VisIt)
> > which links with a non-free library (Silo) by the same authors!
> > :-(
[...]
> I got in touch with Silo's upstream.
> They quickly replied in an encouraging manner.
> First thing they told me is that Silo is no longer a mandatory
> dependency for VisIt: they say it's been an *optional* dependency for
> quite some time.
[...]
> I think VisIt could be packaged for Debian (main) with the Silo plugin
> disabled, while we wait for upstream to re-license Silo in a DFSG-free
> manner...
> Does it sound feasible?

Breaking news!!!   :-)

After a bit of persuading by some people (including me!), and after a
long re-licensing process, Silo is now Free Software under a 3-clause
BSD license: see the September 20, 2010 release notes at
<https://wci.llnl.gov/codes/silo/release_notes.html>
and the Silo-4.8-bsd*tar.gz downloads at
<https://wci.llnl.gov/codes/silo/downloads.html>

Unfortunately a couple of compression features were not re-licensed and
hence the Free version of Silo lacks some compression capabilities
(again, see the release notes).
Anyway, the rest of the library now does comply with the DFSG!   :-)

This means that we are now looking for someone who volunteers to
package the Silo library!   ;-)


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..................................................... Francesco Poli .
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