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lapack license


Hi all,

  I noticed that the recent release of lapack 3.1.0 contains a
license file (finally) which was never present in any previous
lapack release. Since there have been discussions on this list
in the past of the fuzzy lapack licensing issues, here is the
license:

--- snip ---

Copyright (c) 1992-2006 The University of Tennessee.  All rights
reserved.

Redistribution and use in source and binary forms, with or without 
modification, are permitted provided that the following conditions are
met:

- Redistributions of source code must retain the above copyright
  notice, this list of conditions and the following disclaimer. 
  
- Redistributions in binary form must reproduce the above copyright
  notice, this list of conditions and the following disclaimer listed
  in this license in the documentation and/or other materials
  provided with the distribution.
  
- Neither the name of the copyright holders nor the names of its
  contributors may be used to endorse or promote products derived from
  this software without specific prior written permission.

--- snip ---

I'm not an expert on free software licenses, but it looks like this
is similar to the original BSD license due to the "copyright notice
must be preserved" clause. Perhaps some more knowledgeable people
can comment on whether this is compatible with the GPL, since some of
the recent nonsymmetric eigenvalue code added to gsl was ported from
lapack. Mainly this would affect the eigenvector solver...most of
the eigenvalue code is not from lapack (i think there was just 1
routine which could probably be re-written).

Patrick Alken


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