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Conversion to bsd 2-clause licence. key changes in the master root files.

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8
mps/contributing.rst
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@ -22,9 +22,11 @@ The style guide in guide.impl.c.format_ contains basic rules for style.
Licensing
---------
In order for us to accept your contribution, you must agree to the MPS
contribution agreement, so that we can continue to commercially license the
MPS and thereby fund future development.
Prior to the 2020-05 re-licensing of the MPS under the BSD 2-clause
license, we required contributors to agree to the following
contribution agreement, so that we could continue to commercially
license the MPS and thereby fund future development. We have not yet
decided what may replace this requirement.
I grant Ravenbrook Ltd an irrevocable, perpetual, worldwide,
non-exclusive licence to do anything with [your contribution] that I

76
mps/license.txt
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@ -1,35 +1,27 @@
Memory Pool System Kit Open Source License
==========================================
This is the license under which the Memory Pool System Kit is available as
open source.
This is the license under which the Memory Pool System Kit is made
available by Ravenbrook Limited. This license is generally known as
the `BSD 2-clause license`_. It is `GPL compatible`_ and
`OSI approved`_.
**It is not the only way the MPS is licensed.**
For avoidance of doubt, this license supersedes any older licenses
that may appear in other files that are part of this distribution
and in any of its branches.
If the licensing terms aren't suitable for you (for example, you're
developing a closed-source commercial product or a compiler run-time
system) you can easily license the MPS under different terms from
Ravenbrook. Please write to us at `<mps-questions@ravenbrook.com>`_
for more information.
The open source license for the MPS is the `Sleepycat License`_ also
known as the "Berkeley Database License". This license is
`GPL compatible`_ and `OSI approved`_. The MPS is "multi licensed" in
a manner similar to MySQL.
Prior to 2020, the MPS was "multi-licensed" under the `Sleepycat
License`_ and also by other specifically arranged license agreements.
.. _Sleepycat License: https://en.wikipedia.org/wiki/Sleepycat_License
.. _GPL compatible: http://www.gnu.org/licenses/license-list.html
.. _OSI approved: http://opensource.org/licenses/sleepycat
.. _GPL compatible: https://www.gnu.org/licenses/license-list.html
.. _OSI approved: https://opensource.org/licenses/sleepycat
.. _BSD 2-clause license: https://opensource.org/licenses/BSD-2-Clause
License
-------
Copyright © 2001–2013 `Ravenbrook Limited <http://www.ravenbrook.com/>`_.
All rights reserved. This is the open source license for the Memory
Pool System, but it is not the only one. Contact Ravenbrook at
`<mps-questions@ravenbrook.com>`_ if you would like a different
license.
Copyright © 2001–2020 `Ravenbrook Limited <http://www.ravenbrook.com/>`_.
Redistribution and use in source and binary forms, with or without
modification, are permitted provided that the following conditions are
@ -43,39 +35,15 @@ met:
documentation and/or other materials provided with the
distribution.
3. Redistributions in any form must be accompanied by information on
how to obtain complete source code for this software and any
accompanying software that uses this software. The source code
must either be included in the distribution or be available for no
more than the cost of distribution plus a nominal fee, and must be
freely redistributable under reasonable conditions. For an
executable file, complete source code means the source code for all
modules it contains. It does not include source code for modules
or files that typically accompany the major components of the
operating system on which the executable file runs.
THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS
IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR
PURPOSE, OR NON-INFRINGEMENT, ARE DISCLAIMED. IN NO EVENT SHALL THE
COPYRIGHT HOLDERS AND CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
HOLDERS OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
Exceptions
----------
**Open Dylan**
Software that makes use of the Memory Pool System only via the Dylan
programming language using the Open Dylan implementation and any
accompanying software is exempt from clause 3 of the license, provided
that the Dylan program is not providing memory management services. For
the avoidance of doubt, this exemption does not apply to software
directly using a copy of the Memory Pool System received as part of the
Open Dylan source code.

56
mps/readme.txt
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@ -28,16 +28,8 @@ commercial products since 1997. Bugs are almost unknown in production.
It is under continuous development and support by `Ravenbrook
<http://www.ravenbrook.com/>`__.
The MPS is distributed under an open source license (see
`<license.txt>`_). The license is designed to make it possible for you
to use the MPS in your own projects, provided that you either don't
distribute your product, or your product is open source too.
If the licensing terms aren't suitable for you (for example, you're
developing a closed-source commercial product or a compiler run-time
system) you can easily license the MPS under different terms from
Ravenbrook. Please write to us at mps-questions@ravenbrook.com
for more information.
The MPS is distributed under the BSD 2-clause open source license (see
`<license.txt>`_).
Getting started
@ -129,13 +121,15 @@ Document History
2008-05-01 RHSK_ Release 1.108.2
2010-03-03 RHSK_ Release 1.109.0
2012-08-14 RB_ Updating build instructions for new platforms.
2012-09-05 RB_ Considerably reduced ready for version 1.110. Now
2012-09-05 RB_ Considerably reduced ready for version 1.110. Now
brought to you in glorious reStructuredText.
2014-01-13 GDR_ Updated supported platforms.
2014-07-04 GDR_ Link to hotfix for WOW64 bug.
2016-03-24 RB_ Adding support for FreeBSD with Clang/LLVM.
2020-05-22 PNJ_ Changed to BSD 2-clause licence.
========== ===== ======================================================
.. _PNJ: mailto:pnj@ravenbrook.com
.. _GDR: mailto:gdr@ravenbrook.com
.. _NB: mailto:nb@ravenbrook.com
.. _RB: mailto:rb@ravenbrook.com
@ -145,9 +139,7 @@ Document History
Copyright and Licence
---------------------
Copyright (C) 2001-2018 Ravenbrook Limited. All rights reserved.
<http://www.ravenbrook.com/>. This is an open source license. Contact
Ravenbrook for commercial licensing options.
Copyright © 2001–2020 `Ravenbrook Limited <http://www.ravenbrook.com/>`_.
Redistribution and use in source and binary forms, with or without
modification, are permitted provided that the following conditions are
@ -158,28 +150,18 @@ met:
2. Redistributions in binary form must reproduce the above copyright
notice, this list of conditions and the following disclaimer in the
documentation and/or other materials provided with the distribution.
documentation and/or other materials provided with the
distribution.
3. Redistributions in any form must be accompanied by information on how
to obtain complete source code for this software and any
accompanying software that uses this software. The source code must
either be included in the distribution or be available for no more than
the cost of distribution plus a nominal fee, and must be freely
redistributable under reasonable conditions. For an executable file,
complete source code means the source code for all modules it contains.
It does not include source code for modules or files that typically
accompany the major components of the operating system on which the
executable file runs.
THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS
IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
HOLDERS OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
**This software is provided by the copyright holders and contributors
"as is" and any express or implied warranties, including, but not
limited to, the implied warranties of merchantability, fitness for a
particular purpose, or non-infringement, are disclaimed. In no event
shall the copyright holders and contributors be liable for any direct,
indirect, incidental, special, exemplary, or consequential damages
(including, but not limited to, procurement of substitute goods or
services; loss of use, data, or profits; or business interruption)
however caused and on any theory of liability, whether in contract,
strict liability, or tort (including negligence or otherwise) arising in
any way out of the use of this software, even if advised of the
possibility of such damage.**