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Re: Tcl license



Iain Hibbert <plunky%rya-online.net@localhost> writes:

> This software is copyrighted by the Regents of the University of
> California, Sun Microsystems, Inc., Scriptics Corporation, ActiveState
> Corporation and other parties.  The following terms apply to all files
> associated with the software unless explicitly disclaimed in
> individual files.
>
> The authors hereby grant permission to use, copy, modify, distribute,
> and license this software and its documentation for any purpose, provided
> that existing copyright notices are retained in all copies and that this
> notice is included verbatim in any distributions. No written agreement,
> license, or royalty fee is required for any of the authorized uses.
> Modifications to this software may be copyrighted by their authors
> and need not follow the licensing terms described here, provided that
> the new terms are clearly indicated on the first page of each file where
> they apply.

That looks close enough to MIT that it's hard to imagine anyone (who
thinks mit license is ok) getting upset.  so calling it mit is ok.
lang/tcl doesn't have a license yet either.

> IN NO EVENT SHALL THE AUTHORS OR DISTRIBUTORS BE LIABLE TO ANY PARTY
> FOR DIRECT, INDIRECT, SPECIAL, INCIDENTAL, OR CONSEQUENTIAL DAMAGES
> ARISING OUT OF THE USE OF THIS SOFTWARE, ITS DOCUMENTATION, OR ANY
> DERIVATIVES THEREOF, EVEN IF THE AUTHORS HAVE BEEN ADVISED OF THE
> POSSIBILITY OF SUCH DAMAGE.
>
> THE AUTHORS AND DISTRIBUTORS SPECIFICALLY DISCLAIM ANY WARRANTIES,
> INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY,
> FITNESS FOR A PARTICULAR PURPOSE, AND NON-INFRINGEMENT.  THIS SOFTWARE
> IS PROVIDED ON AN "AS IS" BASIS, AND THE AUTHORS AND DISTRIBUTORS HAVE
> NO OBLIGATION TO PROVIDE MAINTENANCE, SUPPORT, UPDATES, ENHANCEMENTS, OR
> MODIFICATIONS.
>
> GOVERNMENT USE: If you are acquiring this software on behalf of the
> U.S. government, the Government shall have only "Restricted Rights"
> in the software and related documentation as defined in the Federal
> Acquisition Regulations (FARs) in Clause 52.227.19 (c) (2).  If you
> are acquiring the software on behalf of the Department of Defense, the
> software shall be classified as "Commercial Computer Software" and the
> Government shall have only "Restricted Rights" as defined in Clause
> 252.227-7013 (c) (1) of DFARs.  Notwithstanding the foregoing, the
> authors grant the U.S. Government and others acting in its behalf
> permission to use and distribute the software in accordance with the
> terms specified in this license.

This is a defense contracting term, and basically says the government
has to follow the standard license terms.  When someone (or a company,
more typically), creates software under contract the government
typically gets "unlimited rights" which enables them to do more than the
mit license (distribute without acknowledgement).  For the purposes of
pkgsrc I would ignore the 'restricted rights' clause.  If the terms said
"may not be used for defense" that would be something else and non-free.
(I'm not a lawyer, but I can spell DFARS :-)

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