<p>
The <acronym>deal.II</acronym> library has been placed under an Open
Source license, in the sense advocated by the <a
- href="http://www.opensource.org" target="_top">Open Source
- Initiative</a>. You are thus free to copy and use it, and you have
- free access to all source codes. However, <acronym>deal.II</acronym>
- is not in the public domain, it is property of and copyrighted by
- the <acronym>deal.II</acronym> authors, and there are restrictions
- on its use. We will give some hints on license issues first. The
- legally binding license is the <a href="#license-text">Q Public
- License (QPL)</a> at the bottom of this page. Furthermore, deal.II
- distributions come bundled with some third party software for which
- the deal.II authors do not own the copyright. The licenses of these
- parts are discussed <a href="#3rdparty">below</a>.
+ href="http://www.opensource.org" target="_top">Open Source
+ Initiative</a>. You are thus free to copy and use it, and you have
+ free access to all source code.
+ </p>
+ <p>
+ <b>However, <acronym>deal.II</acronym> is not in the public domain, it
+ is property of and copyrighted by the
+ <a href="authors.html"><acronym>deal.II</acronym> authors</a>, and
+ there are restrictions on its use:</b>
+ The legally binding license is the <a href="#license-text">GNU Lesser
+ General Public License</a> (LGPL) as published by the Free Software
+ Foundation; either version 2.1 of the License, or (at your option)
+ any later version.
+ </p>
+
+ <p>
+ Furthermore, the deal.II distribution comes bundled with some third
+ party software for which the deal.II authors do not own the
+ copyright. The licenses of these parts are discussed
+ <a href="#3rdparty">below</a>.
+ </p>
<p>
In this document, as well as in the program files, the terms
Kanschat and a <i>long</i> list of contributors.
</p>
-
-
- <h3>Restrictions on and commercial use of the library</h3>
-
- <p>
-
- <acronym>deal.II</acronym> is distributed under the <a
- href="http://www.opensource.org/osd.html" target="_top">Open Source
- license</a> called the <em>Q Public License</em> (or "QPL") listed
- in full below. Essentially, an interpretation of this license is
- that you can use the library free of charge for developing your own
- programs. However, if you plan to distribute these programs to others,
- certain restrictions are imposed by the QPL.
+ <h3>Contributions</h3>
<p>
-
- In non-legal terms, the license stipulates that if you want
- to give your program to someone else in whatever form (including as
- a binary executable), you have to make the entire source code of
- your own program and all modifications to the deal.II library
- available free of charge as well.
-
+ <b>As a contributor to this project, you agree that any of your
+ contributions be licensed under the same terms and conditions as
+ the license of the deal.II project granted to you.</b>
+ </p>
<p>
-
- We recognize that giving away the source code may be an
- unacceptable restriction in a commercial setting. As the owners of
- the sources, we are able to grant you a differently licensed version
- of the deal.II library that does not contain this
- requirement, and we are very much willing to negotiate the terms of
- such a license. Please contact the authors of the library if you are
- interested in commercial use of deal.II.
-
+ We, <a href="authors.html">the deal.II authors</a>, do not require
+ copyright assignments for contributions. This means that the
+ copyright for code contributions in the deal.II project is held by
+ its respective contributors who have each agreed to release their
+ contributed code under the terms of the LGPL v2.1 or later.
+ </p>
- <h3>Referencing the library</h3>
+ <h3>Referencing the library</h3>
<p>
- In addition to the terms imposed by the QPL, we ask for the
- following courtesy:
- </p>
+ In addition to the terms imposed by the LGPL v2.1 or later, we ask
+ for the following courtesy:
<ul>
- <li> Every publication presenting numerical results obtained with
- the help of <acronym>deal.II</acronym> should state the name of
- the library and cite
- the canonical deal.II reference listed at the top of <a
- href="publications/index.html">the publications page</a>.
+ <li> Every publication presenting numerical results obtained with the
+ help of <acronym>deal.II</acronym> should state the name of the
+ library and cite the canonical deal.II reference listed at the top of
+ <a href="publications/index.html">the publications page</a>.
</ul>
- This is the usual, fair way of giving credit to contributors to a
- scientific result. In addition, it helps us justify our effort in
- developing deal.II as an academic undertaking.
-
+ </p>
+ <p>
+ This is the usual, fair way of giving credit to contributors to a
+ scientific result. In addition, it helps us justify our effort in
+ developing deal.II as an academic undertaking.
+ </p>
<p>
-
We keep a <a href="publications/index.html">list of publications
using deal.II</a>. Feel free to let us know about your publications.
-
-
- <a name="3rdparty">
- <h3>Parts of the deal.II distribution under a separate license</h3>
- </a>
-
- Some of the files in the <code>contrib/</code> subdirectory are by
- other people, and are distributed under separate licenses. These
- files are not part of the <acronym>deal.II</acronym> library, but
- they are part of our distribution. They are generally available for
- use in non-commercial academic settings. For commercial use and if
- you want to distribute your codes, please consult the licenses of
- these parts of the deal.II distribution. We made sure that those parts of the
- distribution for which the license is not entirely free for all uses can be
- disabled upon configuration of <acronym>deal.II</acronym> without
- unduly restricting the functionality of the rest of the
- library.
-
- <p>
-
- In particular, these are libraries that we distribute in the
- <code>contrib/</code> subdirectory, courtesy of their authors:
- <ul>
- <li> Parts of the <a href="http://www.boost.org/" target="_top">BOOST</a>
- library.
- <li> <a
- href="http://www.cise.ufl.edu/research/sparse/umfpack/"
- target="_top">UMFPACK</a>. For the license, see <a
- href="http://www.cise.ufl.edu/research/sparse/umfpack/"
- target="_top">UMFPACK</a>.
- <li> <a href="http://warp.povusers.org/FunctionParser/"
- target="_top">FunctionParser</a>. For the license see <a
- href="http://warp.povusers.org/FunctionParser/"
- target="_top">FunctionParser</a>.
- </ul>
-
- <p>
-
- <acronym>deal.II</acronym> can interface with a number of <a
- href="readme.html#external-libs">other packages</a> that you have to install
- yourself. They are, of course, covered by their own licenses.
</p>
-
- <h3>About the license</h3>
+ <a name="3rdparty">
+ <h3>Parts of the deal.II distribution under a separate license</h3>
+ </a>
<p>
- The QPL was originally developed by
- <a href="http://www.troll.no" target="_top">Troll Tech</a> for their
- Qt program library, but has since gained some support by other
- library authors as well.
- For more information on the QPL, please follow
- <a href="http://doc.trolltech.com/4.0/qpl.html" target="_top">this link</a>.
+ <acronym>deal.II</acronym> comes bundled with copies of
+ <a href="http://www.cise.ufl.edu/research/sparse/umfpack/"
+ target="_top">UMFPACK</a>,
+ <a href="http://threadingbuildingblocks.org/"
+ target="_top">Threading Building Blocks</a>,
+ <a href="http://www.boost.org/" target="_top">BOOST</a> and
+ <a href="http://warp.povusers.org/FunctionParser/"
+ target="_top">FunctionParser</a>.
+ These projects reside in the subdirectory "bundled/". <b>Please note
+ that these projects are copyrighted by others than the deal.II
+ authors</b> and are covered by different licenses. For details,
+ consult the respective webpage.
</p>
-
-
-
- <hr>
- <a name="license-text">
- <h1 align=center>
- </a>
- THE Q PUBLIC LICENSE
- version 1.0
- <br>
- <br>
- <small>
- Copyright (C) 1999 Troll Tech AS, Norway.
- <br>
- <small>
- Everyone is permitted to copy and
- <br>
- distribute this license document.
- </small>
- </small>
- </h1>
<p>
- The intent of this license is to establish freedom to share and change the
- software regulated by this license under the open source model.
- <p>
- This license applies to any software containing a notice placed by the
- copyright holder saying that it may be distributed under the terms of
- the Q Public License version 1.0. Such software is herein referred to as
- the Software. This license covers modification and distribution of the
- Software, use of third-party application programs based on the Software,
- and development of free software which uses the Software.
- <h2 align=center>
- Granted Rights
- </h2>
- <p>
- 1. You are granted the non-exclusive rights set forth in this license
- provided you agree to and comply with any and all conditions in this
- license. Whole or partial distribution of the Software, or software
- items that link with the Software, in any form signifies acceptance of
- this license.
- <p>
- 2. You may copy and distribute the Software in unmodified form provided
- that the entire package, including - but not restricted to - copyright,
- trademark notices and disclaimers, as released by the initial developer
- of the Software, is distributed.
- <p>
- 3. You may make modifications to the Software and distribute your
- modifications, in a form that is separate from the Software, such as
- patches. The following restrictions apply to modifications:
- <blockquote>
- <p>
- a. Modifications must not alter or remove any copyright notices in
- the Software.
- <p>
- b. When modifications to the Software are released under this
- license, a non-exclusive royalty-free right is granted to the
- initial developer of the Software to distribute your modification
- in future versions of the Software provided such versions remain
- available under these terms in addition to any other license(s) of
- the initial developer.
- </blockquote>
- <p>
- 4. You may distribute machine-executable forms of the Software or
- machine-executable forms of modified versions of the Software, provided
- that you meet these restrictions:
- <blockquote>
- <p>
- a. You must include this license document in the distribution.
- <p>
- b. You must ensure that all recipients of the machine-executable forms
- are also able to receive the complete machine-readable source code
- to the distributed Software, including all modifications, without
- any charge beyond the costs of data transfer, and place prominent
- notices in the distribution explaining this.
- <p>
- c. You must ensure that all modifications included in the
- machine-executable forms are available under the terms of this
- license.
- </blockquote>
- <p>
- 5. You may use the original or modified versions of the Software to
- compile, link and run application programs legally developed by you
- or by others.
- <p>
- 6. You may develop application programs, reusable components and other
- software items that link with the original or modified versions of the
- Software. These items, when distributed, are subject to the following
- requirements:
- <blockquote>
- <p>
- a. You must ensure that all recipients of machine-executable forms of
- these items are also able to receive and use the complete
- machine-readable source code to the items without any charge
- beyond the costs of data transfer.
- <p>
- b. You must explicitly license all recipients of your items to use
- and re-distribute original and modified versions of the items in
- both machine-executable and source code forms. The recipients must
- be able to do so without any charges whatsoever, and they must be
- able to re-distribute to anyone they choose.
- <p>
- c. If the items are not available to the general public, and the
- initial developer of the Software requests a copy of the items,
- then you must supply one.
- </blockquote>
- <h2 align=center>
- Limitations of Liability
- </h2>
- In no event shall the initial developers or copyright holders be liable
- for any damages whatsoever, including - but not restricted to - lost
- revenue or profits or other direct, indirect, special, incidental or
- consequential damages, even if they have been advised of the possibility
- of such damages, except to the extent invariable law, if any, provides
- otherwise.
- <h2 align=center>
- No Warranty
- </h2>
+ The libraries listed above are all open source and as such place few
+ restrictions on their use. However, if you want to <i>distribute</i>
+ software developed with deal.II (in source or binary form) and you
+ are using the packages above (with source code in
+ <code>bundled/</code>), then they may impose different terms. Please
+ consult the licenses of these packages for more information.
+ </p>
<p>
- The Software and this license document are provided AS IS with NO WARRANTY
- OF ANY KIND, INCLUDING THE WARRANTY OF DESIGN, MERCHANTABILITY AND FITNESS
- FOR A PARTICULAR PURPOSE.
- <h2 align=center>
- Choice of Law
- </h2>
+ Alternatively, the configuration process of deal.II allows you to
+ disable the use of all of these bundled libraries. In that case, you
+ can not use their functionality but you also are not restricted by
+ their license.
<p>
- This license is governed by the Laws of Germany. Disputes shall be settled
- by Amtsgericht Heidelberg.
+
+ <h3>Contact</h3>
+ <p>
+ For further questions regarding licensing and commercial use please
+ contact the deal.II maintainers directly via one of the following mail
+ addresses:
+ <ul>
+ <li>
+ TODO
+ </li>
+ <li>
+ Wolfgang Bangerth < TODO >
+ </li>
+ <li>
+ Timo Heister < TODO >
+ </li>
+ <li>
+ Guido Kanschat < TODO >
+ </li>
+ </ul>
</p>
+ <h3>Full license text</h3>
+
+ <pre>
+
+ GNU LESSER GENERAL PUBLIC LICENSE
+ Version 2.1, February 1999
+
+ Copyright (C) 1991, 1999 Free Software Foundation, Inc.
+ 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ Everyone is permitted to copy and distribute verbatim copies
+ of this license document, but changing it is not allowed.
+
+ [This is the first released version of the Lesser GPL. It also counts
+ as the successor of the GNU Library Public License, version 2, hence
+ the version number 2.1.]
+
+ Preamble
+
+ The licenses for most software are designed to take away your
+ freedom to share and change it. By contrast, the GNU General Public
+ Licenses are intended to guarantee your freedom to share and change
+ free software--to make sure the software is free for all its users.
+
+ This license, the Lesser General Public License, applies to some
+ specially designated software packages--typically libraries--of the
+ Free Software Foundation and other authors who decide to use it. You
+ can use it too, but we suggest you first think carefully about whether
+ this license or the ordinary General Public License is the better
+ strategy to use in any particular case, based on the explanations below.
+
+ When we speak of free software, we are referring to freedom of use,
+ not price. Our General Public Licenses are designed to make sure that
+ you have the freedom to distribute copies of free software (and charge
+ for this service if you wish); that you receive source code or can get
+ it if you want it; that you can change the software and use pieces of
+ it in new free programs; and that you are informed that you can do
+ these things.
+
+ To protect your rights, we need to make restrictions that forbid
+ distributors to deny you these rights or to ask you to surrender these
+ rights. These restrictions translate to certain responsibilities for
+ you if you distribute copies of the library or if you modify it.
+
+ For example, if you distribute copies of the library, whether gratis
+ or for a fee, you must give the recipients all the rights that we gave
+ you. You must make sure that they, too, receive or can get the source
+ code. If you link other code with the library, you must provide
+ complete object files to the recipients, so that they can relink them
+ with the library after making changes to the library and recompiling
+ it. And you must show them these terms so they know their rights.
+
+ We protect your rights with a two-step method: (1) we copyright the
+ library, and (2) we offer you this license, which gives you legal
+ permission to copy, distribute and/or modify the library.
+
+ To protect each distributor, we want to make it very clear that
+ there is no warranty for the free library. Also, if the library is
+ modified by someone else and passed on, the recipients should know
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+
+ Finally, software patents pose a constant threat to the existence of
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+ effectively restrict the users of a free program by obtaining a
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+ any patent license obtained for a version of the library must be
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+
+ Most GNU software, including some libraries, is covered by the
+ ordinary GNU General Public License. This license, the GNU Lesser
+ General Public License, applies to certain designated libraries, and
+ is quite different from the ordinary General Public License. We use
+ this license for certain libraries in order to permit linking those
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+
+ When a program is linked with a library, whether statically or using
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+ entire combination fits its criteria of freedom. The Lesser General
+ Public License permits more lax criteria for linking other code with
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+
+ We call this license the "Lesser" General Public License because it
+ does Less to protect the user's freedom than the ordinary General
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+
+ For example, on rare occasions, there may be a special need to
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+ Ty Coon, President of Vice
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+ That's all there is to it!
+ </pre>
+
<hr>
<address>
projects / dealii-svn.git / commitdiff