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[Imgcif-l] LGPL for more of CBFlib

• To: imgcif-l@iucr.org
• Subject: [Imgcif-l] LGPL for more of CBFlib
• From: "Herbert J. Bernstein" <yaya@bernstein-plus-sons.com>
• Date: Fri, 23 May 2008 16:15:31 -0400

imgCIF/CBF is a format for image data, such as synchrotron diffraction
images.  CBFlib is a software package supporting the imgCIF/CBF format.
For background information, see Hall and McMahon, International Tables for
Crystallography, Volume G, Definition and exchange of crystallographic data,
IUCr, Springer, 2008, Dordrecht, NL, esp. chapters 2.3, 3.7, 4.6 and 5.6.

The CBFlib package available from

   http://www.sourceforge.net/projects/cbflib

is an open source package covered by the GNU General Public Licence (GPL).
The CBFlib Applications Programming Interface (API) is also covered by the
GNU Lesser General Public License (LGPL), which is also know as the GNU
Library Public License.

Effective immediately, all functions, methods, subroutines and procedures
in the CBFlib package will be considered to be part of the API and to
be covered by the LGPL as an alternative to the GPL that covers everything
in the CBFlib package.

This change results from the discussions at the 22 May 2008 workshop
at BNL to help make detector vendors and others with proprietary software
more comfortable in using the CBFlib package.

Thanks to Teemu Ikonen, since February 2008 CBFlib is a debian package
and you may link to the functions in the CBFlib package from a
proprietary program just as you may link to glibc or to the trigonometry
functions in the libm math library.

Use it in good health.

   -- Herbert J. Bernstein

-- 
=====================================================
  Herbert J. Bernstein, Professor of Computer Science
    Dowling College, Kramer Science Center, KSC 121
         Idle Hour Blvd, Oakdale, NY, 11769

                  +1-631-244-3035
                  yaya@dowling.edu
=====================================================
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