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LICENSE
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# CeCILL-C FREE SOFTWARE LICENSE AGREEMENT
## Notice
This Agreement is a Free Software license agreement that is the result of discussions between its authors in order to ensure compliance with the two main principles guiding its drafting:
- firstly, compliance with the principles governing the distribution of Free Software: access to source code, broad rights granted to users,
- secondly, the election of a governing law, French law, with which it is conformant, both as regards the law of torts and intellectual property law, and the protection that it offers to both authors and holders of the economic rights over software.
The authors of the [CeCILL-C](#CeCILL-C) license are:
- _Commissariat à l'Energie Atomique_ - CEA, a public scientific, technical and industrial research establishment, having its principal place of business at 25 rue Leblanc, immeuble Le Ponant D, 75015 Paris, France.
- _Centre National de la Recherche Scientifique_ - CNRS, a public scientific and technological establishment, having its principal place of business at 3 rue Michel-Ange, 75794 Paris cedex 16, France.
- _Institut National de Recherche en Informatique et en Automatique_ - INRIA, a public scientific and technological establishment, having its principal place of business at Domaine de Voluceau, Rocquencourt, BP 105, 78153 Le Chesnay cedex, France.
<a name="CeCILL-C"></a> CeCILL stands for Ce(a) C(nrs) I(nria) L(ogiciel) L(ibre)
## Preamble
The purpose of this Free Software license agreement is to grant users the right to modify and re-use the software governed by this license.
The exercising of this right is conditional upon the obligation to make available to the community the modifications made to the source code of the software so as to contribute to its evolution.
In consideration of access to the source code and the rights to copy, modify and redistribute granted by the license, users are provided only with a limited warranty and the software's author, the holder of the economic rights, and the successive licensors only have limited liability.
In this respect, the risks associated with loading, using, modifying and/or developing or reproducing the software by the user are brought to the user's attention, given its Free Software status, which may make it complicated to use, with the result that its use is reserved for developers and experienced professionals having in-depth computer knowledge. Users are therefore encouraged to load and test the suitability of the software as regards their requirements in conditions enabling the security of their systems and/or data to be ensured and, more generally, to use and operate it in the same conditions of security. This Agreement may be freely reproduced and published, provided it is not altered, and that no provisions are either added or removed herefrom.
This Agreement may apply to any or all software for which the holder of the economic rights decides to submit the use thereof to its provisions.
## Article 1 - DEFINITIONS
For the purpose of this Agreement, when the following expressions commence with a capital letter, they shall have the following meaning:
**Agreement:** means this license agreement, and its possible subsequent versions and annexes.
**Software:** means the software in its Object Code and/or Source Code form and, where applicable, its documentation, "as is" when the Licensee accepts the Agreement.
**Initial Software:** means the Software in its Source Code and possibly its Object Code form and, where applicable, its documentation, "as is" when it is first distributed under the terms and conditions of the Agreement.
**Modified Software:** means the Software modified by at least one Integrated Contribution.
**Source Code:** means all the Software's instructions and program lines to which access is required so as to modify the Software.
**Object Code:** means the binary files originating from the compilation of the Source Code.
**Holder:** means the holder(s) of the economic rights over the Initial Software.
**Licensee:** means the Software user(s) having accepted the Agreement.
**Contributor:** means a Licensee having made at least one Integrated Contribution.
**Licensor:** means the Holder, or any other individual or legal entity, who distributes the Software under the Agreement.
**Integrated Contribution:** means any or all modifications, corrections, translations, adaptations and/or new functions integrated into the Source Code by any or all Contributors.
**Related Module:** means a set of sources files including their documentation that, without modification to the Source Code, enables supplementary functions or services in addition to those offered by the Software.
**Derivative Software:** means any combination of the Software, modified or not, and of a Related Module.
**Parties:** mean both the Licensee and the Licensor.
These expressions may be used both in singular and plural form.
## Article 2 - PURPOSE
The purpose of the Agreement is the grant by the Licensor to the Licensee of a non-exclusive, transferable and worldwide license for the Software as set forth in [Article 5](#5) hereinafter for the whole term of the protection granted by the rights over said Software.
## <a name="3"></a> Article 3 - ACCEPTANCE
<a name="3.1"></a> **3.1** The Licensee shall be deemed as having accepted the terms and conditions of this Agreement upon the occurrence of the first of the following events:
- (i) loading the Software by any or all means, notably, by downloading from a remote server, or by loading from a physical medium;
- (ii) the first time the Licensee exercises any of the rights granted hereunder.
<a name="3.2"></a> **3.2** One copy of the Agreement, containing a notice relating to the characteristics of the Software, to the limited warranty, and to the fact that its use is restricted to experienced users has been provided to the Licensee prior to its acceptance as set forth in [Article 3.1](#3.1) hereinabove, and the Licensee hereby acknowledges that it has read and understood it.
## <a name="4"></a> Article 4 - EFFECTIVE DATE AND TERM
### <a name="4.1"></a> 4.1 EFFECTIVE DATE
The Agreement shall become effective on the date when it is accepted by the Licensee as set forth in [Article 3.1](#3.1).
### <a name="4.2"></a> 4.2 TERM
The Agreement shall remain in force for the entire legal term of protection of the economic rights over the Software.
## <a name="5"></a> Article 5 - SCOPE OF RIGHTS GRANTED
The Licensor hereby grants to the Licensee, who accepts, the following rights over the Software for any or all use, and for the term of the Agreement, on the basis of the terms and conditions set forth hereinafter.
Besides, if the Licensor owns or comes to own one or more patents protecting all or part of the functions of the Software or of its components, the Licensor undertakes not to enforce the rights granted by these patents against successive Licensees using, exploiting or modifying the Software. If these patents are transferred, the Licensor undertakes to have the transferees subscribe to the obligations set forth in this paragraph.
### <a name="5.1"></a> 5.1 RIGHT OF USE
The Licensee is authorized to use the Software, without any limitation as to its fields of application, with it being hereinafter specified that this comprises:
1. permanent or temporary reproduction of all or part of the Software by any or all means and in any or all form.
2. loading, displaying, running, or storing the Software on any or all medium.
3. entitlement to observe, study or test its operation so as to determine the ideas and principles behind any or all constituent elements of said Software. This shall apply when the Licensee carries out any or all loading, displaying, running, transmission or storage operation as regards the Software, that it is entitled to carry out hereunder.
### <a name="5.2"></a> 5.2 RIGHT OF MODIFICATION
The right of modification includes the right to translate, adapt, arrange, or make any or all modifications to the Software, and the right to reproduce the resulting software. It includes, in particular, the right to create a Derivative Software.
The Licensee is authorized to make any or all modification to the Software provided that it includes an explicit notice that it is the author of said modification and indicates the date of the creation thereof.
### <a name="5.3"></a> 5.3 RIGHT OF DISTRIBUTION
In particular, the right of distribution includes the right to publish, transmit and communicate the Software to the general public on any or all medium, and by any or all means, and the right to market, either in consideration of a fee, or free of charge, one or more copies of the Software by any means.
The Licensee is further authorized to distribute copies of the modified or unmodified Software to third parties according to the terms and conditions set forth hereinafter.
#### <a name="5.3.1"></a> 5.3.1 DISTRIBUTION OF SOFTWARE WITHOUT MODIFICATION
The Licensee is authorized to distribute true copies of the Software in Source Code or Object Code form, provided that said distribution complies with all the provisions of the Agreement and is accompanied by:
1. a copy of the Agreement,
2. a notice relating to the limitation of both the Licensor's warranty and liability as set forth in [Article 8](#8) and [Article 9](#9),
and that, in the event that only the Object Code of the Software is redistributed, the Licensee allows effective access to the full Source Code of the Software at a minimum during the entire period of its distribution of the Software, it being understood that the additional cost of acquiring the Source Code shall not exceed the cost of transferring the data.
#### <a name="5.3.2"></a> 5.3.2 DISTRIBUTION OF MODIFIED SOFTWARE
When the Licensee makes an Integrated Contribution to the Software, the terms and conditions for the distribution of the resulting Modified Software become subject to all the provisions of this Agreement.
The Licensee is authorized to distribute the Modified Software, in source code or object code form, provided that said distribution complies with all the provisions of the Agreement and is accompanied by:
1. a copy of the Agreement,
2. a notice relating to the limitation of both the Licensor's warranty and liability as set forth in [Article 8](#8) and [Article 9](#9),
and that, in the event that only the object code of the Modified Software is redistributed, the Licensee allows effective access to the full source code of the Modified Software at a minimum during the entire period of its distribution of the Modified Software, it being understood that the additional cost of acquiring the source code shall not exceed the cost of transferring the data.
#### <a name="5.3.3"></a> 5.3.3 DISTRIBUTION OF DERIVATIVE SOFTWARE
When the Licensee creates Derivative Software, this Derivative Software may be distributed under a license agreement other than this Agreement, subject to compliance with the requirement to include a notice concerning the rights over the Software as defined in [Article 6.4](#6.4). In the event the creation of the Derivative Software required modification of the Source Code, the Licensee undertakes that:
1. the resulting Modified Software will be governed by this Agreement,
2. the Integrated Contributions in the resulting Modified Software will be clearly identified and documented,
3. the Licensee will allow effective access to the source code of the Modified Software, at a minimum during the entire period of distribution of the Derivative Software, such that such modifications may be carried over in a subsequent version of the Software; it being understood that the additional cost of purchasing the source code of the Modified Software shall not exceed the cost of transferring the data.
#### <a name="5.3.4"></a> 5.3.4 COMPATIBILITY WITH THE CeCILL LICENSE
When a Modified Software contains an Integrated Contribution subject to the CeCILL license agreement, or when a Derivative Software contains a Related Module subject to the CeCILL license agreement, the provisions set forth in the third item of [Article 6.4](#6.4) are optional.
## <a name="6"></a> Article 6 - INTELLECTUAL PROPERTY
### <a name="6.1"></a> 6.1 OVER THE INITIAL SOFTWARE
The Holder owns the economic rights over the Initial Software. Any or all use of the Initial Software is subject to compliance with the terms and conditions under which the Holder has elected to distribute its work and no one shall be entitled to modify the terms and conditions for the distribution of said Initial Software.
The Holder undertakes that the Initial Software will remain ruled at least by this Agreement, for the duration set forth in [Article 4.2](#4.2).
### <a name="6.2"></a> 6.2 OVER THE INTEGRATED CONTRIBUTIONS
The Licensee who develops an Integrated Contribution is the owner of the intellectual property rights over this Contribution as defined by applicable law.
### <a name="6.3"></a> 6.3 OVER THE RELATED MODULES
The Licensee who develops a Related Module is the owner of the intellectual property rights over this Related Module as defined by applicable law and is free to choose the type of agreement that shall govern its distribution under the conditions defined in [Article 5.3.3](#5.3.3).
### <a name="6.4"></a> 6.4 NOTICE OF RIGHTS
The Licensee expressly undertakes:
1. not to remove, or modify, in any manner, the intellectual property notices attached to the Software;
2. to reproduce said notices, in an identical manner, in the copies of the Software modified or not;
3. to ensure that use of the Software, its intellectual property notices and the fact that it is governed by the Agreement is indicated in a text that is easily accessible, specifically from the interface of any Derivative Software.
The Licensee undertakes not to directly or indirectly infringe the intellectual property rights of the Holder and/or Contributors on the Software and to take, where applicable, vis-à-vis its staff, any and all measures required to ensure respect of said intellectual property rights of the Holder and/or Contributors.
## <a name="7"></a> Article 7 - RELATED SERVICES
<a name="7.1"></a> **7.1** Under no circumstances shall the Agreement oblige the Licensor to provide technical assistance or maintenance services for the Software.
However, the Licensor is entitled to offer this type of services. The terms and conditions of such technical assistance, and/or such maintenance, shall be set forth in a separate instrument. Only the Licensor offering said maintenance and/or technical assistance services shall incur liability therefor.
<a name="7.2"></a> **7.2** Similarly, any Licensor is entitled to offer to its licensees, under its sole responsibility, a warranty, that shall only be binding upon itself, for the redistribution of the Software and/or the Modified Software, under terms and conditions that it is free to decide. Said warranty, and the financial terms and conditions of its application, shall be subject of a separate instrument executed between the Licensor and the Licensee.
## <a name="8"></a> Article 8 - LIABILITY
<a name="8.1"></a> **8.1** Subject to the provisions of Article 8.2, the Licensee shall be entitled to claim compensation for any direct loss it may have suffered from the Software as a result of a fault on the part of the relevant Licensor, subject to providing evidence thereof.
<a name="8.2"></a> **8.2** The Licensor's liability is limited to the commitments made under this Agreement and shall not be incurred as a result of in particular:
- (i) loss due the Licensee's total or partial failure to fulfill its obligations,
- (ii) direct or consequential loss that is suffered by the Licensee due to the use or performance of the Software, and
- (iii) more generally, any consequential loss.
In particular the Parties expressly agree that any or all pecuniary or business loss (i.e. loss of data, loss of profits, operating loss, loss of customers or orders, opportunity cost, any disturbance to business activities) or any or all legal proceedings instituted against the Licensee by a third party, shall constitute consequential loss and shall not provide entitlement to any or all compensation from the Licensor.
## <a name="9"></a> Article 9 - WARRANTY
<a name="9.1"></a> **9.1** The Licensee acknowledges that the scientific and technical state-of-the-art when the Software was distributed did not enable all possible uses to be tested and verified, nor for the presence of possible defects to be detected. In this respect, the Licensee's attention has been drawn to the risks associated with loading, using, modifying and/or developing and reproducing the Software which are reserved for experienced users.
The Licensee shall be responsible for verifying, by any or all means, the suitability of the product for its requirements, its good working order, and for ensuring that it shall not cause damage to either persons or properties.
<a name="9.2"></a> **9.2** The Licensor hereby represents, in good faith, that it is entitled to grant all the rights over the Software (including in particular the rights set forth in [Article 5](#5)).
<a name="9.3"></a> **9.3** The Licensee acknowledges that the Software is supplied "as is" by the Licensor without any other express or tacit warranty, other than that provided for in [Article 9.2](#9.2) and, in particular, without any warranty as to its commercial value, its secured, safe, innovative or relevant nature.
Specifically, the Licensor does not warrant that the Software is free from any error, that it will operate without interruption, that it will be compatible with the Licensee's own equipment and software configuration, nor that it will meet the Licensee's requirements.
<a name="9.4"></a> **9.4** The Licensor does not either expressly or tacitly warrant that the Software does not infringe any third party intellectual property right relating to a patent, software or any other property right. Therefore, the Licensor disclaims any and all liability towards the Licensee arising out of any or all proceedings for infringement that may be instituted in respect of the use, modification and redistribution of the Software. Nevertheless, should such proceedings be instituted against the Licensee, the Licensor shall provide it with technical and legal assistance for its defense. Such technical and legal assistance shall be decided on a case-by-case basis between the relevant Licensor and the Licensee pursuant to a memorandum of understanding. The Licensor disclaims any and all liability as regards the Licensee's use of the name of the Software. No warranty is given as regards the existence of prior rights over the name of the Software or as regards the existence of a trademark.
## <a name="10"></a> Article 10 - TERMINATION
<a name="10.1"></a> **10.1** In the event of a breach by the Licensee of its obligations hereunder, the Licensor may automatically terminate this Agreement thirty (30) days after notice has been sent to the Licensee and has remained ineffective.
<a name="10.2"></a> **10.2** A Licensee whose Agreement is terminated shall no longer be authorized to use, modify or distribute the Software. However, any licenses that it may have granted prior to termination of the Agreement shall remain valid subject to their having been granted in compliance with the terms and conditions hereof.
## <a name="11"></a> Article 11 - MISCELLANEOUS
<a name="11.1"></a> **11.1 EXCUSABLE EVENTS** Neither Party shall be liable for any or all delay, or failure to perform the Agreement, that may be attributable to an event of force majeure, an act of God or an outside cause, such as defective functioning or interruptions of the electricity or telecommunications networks, network paralysis following a virus attack, intervention by government authorities, natural disasters, water damage, earthquakes, fire, explosions, strikes and labor unrest, war, etc.
<a name="11.2"></a> **11.2** Any failure by either Party, on one or more occasions, to invoke one or more of the provisions hereof, shall under no circumstances be interpreted as being a waiver by the interested Party of its right to invoke said provision(s) subsequently.
<a name="11.3"></a> **11.3** The Agreement cancels and replaces any or all previous agreements, whether written or oral, between the Parties and having the same purpose, and constitutes the entirety of the agreement between said Parties concerning said purpose. No supplement or modification to the terms and conditions hereof shall be effective as between the Parties unless it is made in writing and signed by their duly authorized representatives.
<a name="11.4"></a> **11.4** In the event that one or more of the provisions hereof were to conflict with a current or future applicable act or legislative text, said act or legislative text shall prevail, and the Parties shall make the necessary amendments so as to comply with said act or legislative text. All other provisions shall remain effective. Similarly, invalidity of a provision of the Agreement, for any reason whatsoever, shall not cause the Agreement as a whole to be invalid.
<a name="11.5"></a> **11.5 LANGUAGE** The Agreement is drafted in both French and English and both versions are deemed authentic.
## <a name="12"></a> Article 12 - NEW VERSIONS OF THE AGREEMENT
<a name="12.1"></a> **12.1** Any person is authorized to duplicate and distribute copies of this Agreement.
<a name="12.2"></a> **12.2** So as to ensure coherence, the wording of this Agreement is protected and may only be modified by the authors of the License, who reserve the right to periodically publish updates or new versions of the Agreement, each with a separate number. These subsequent versions may address new issues encountered by Free Software.
<a name="12.3"></a> **12.3** Any Software distributed under a given version of the Agreement may only be subsequently distributed under the same version of the Agreement or a subsequent version.
## <a name="13"></a> Article 13 - GOVERNING LAW AND JURISDICTION
<a name="13.1"></a> **13.1** The Agreement is governed by French law. The Parties agree to endeavor to seek an amicable solution to any disagreements or disputes that may arise during the performance of the Agreement.
<a name="13.2"></a> **13.2** Failing an amicable solution within two (2) months as from their occurrence, and unless emergency proceedings are necessary, the disagreements or disputes shall be referred to the Paris Courts having jurisdiction, by the more diligent Party.
_Version 1.0 dated 2006-09-05._