jaroslav@265: jaroslav@265: GNU GENERAL PUBLIC LICENSE jaroslav@265: Version 3, 29 June 2007 jaroslav@265: jaroslav@265: Copyright (C) 2007 Free Software Foundation, Inc. jaroslav@265: Everyone is permitted to copy and distribute verbatim copies jaroslav@265: of this license document, but changing it is not allowed. jaroslav@265: jaroslav@265: Preamble jaroslav@265: jaroslav@265: The GNU General Public License is a free, copyleft license for jaroslav@265: software and other kinds of works. jaroslav@265: jaroslav@265: The licenses for most software and other practical works are designed jaroslav@265: to take away your freedom to share and change the works. By contrast, jaroslav@265: the GNU General Public License is intended to guarantee your freedom to jaroslav@265: share and change all versions of a program--to make sure it remains free jaroslav@265: software for all its users. We, the Free Software Foundation, use the jaroslav@265: GNU General Public License for most of our software; it applies also to jaroslav@265: any other work released this way by its authors. You can apply it to jaroslav@265: your programs, too. jaroslav@265: jaroslav@265: When we speak of free software, we are referring to freedom, not jaroslav@265: price. Our General Public Licenses are designed to make sure that you jaroslav@265: have the freedom to distribute copies of free software (and charge for jaroslav@265: them if you wish), that you receive source code or can get it if you jaroslav@265: want it, that you can change the software or use pieces of it in new jaroslav@265: free programs, and that you know you can do these things. jaroslav@265: jaroslav@265: To protect your rights, we need to prevent others from denying you jaroslav@265: these rights or asking you to surrender the rights. Therefore, you have jaroslav@265: certain responsibilities if you distribute copies of the software, or if jaroslav@265: you modify it: responsibilities to respect the freedom of others. jaroslav@265: jaroslav@265: For example, if you distribute copies of such a program, whether jaroslav@265: gratis or for a fee, you must pass on to the recipients the same jaroslav@265: freedoms that you received. You must make sure that they, too, receive jaroslav@265: or can get the source code. And you must show them these terms so they jaroslav@265: know their rights. jaroslav@265: jaroslav@265: Developers that use the GNU GPL protect your rights with two steps: jaroslav@265: (1) assert copyright on the software, and (2) offer you this License jaroslav@265: giving you legal permission to copy, distribute and/or modify it. jaroslav@265: jaroslav@265: For the developers' and authors' protection, the GPL clearly explains jaroslav@265: that there is no warranty for this free software. For both users' and jaroslav@265: authors' sake, the GPL requires that modified versions be marked as jaroslav@265: changed, so that their problems will not be attributed erroneously to jaroslav@265: authors of previous versions. jaroslav@265: jaroslav@265: Some devices are designed to deny users access to install or run jaroslav@265: modified versions of the software inside them, although the manufacturer jaroslav@265: can do so. This is fundamentally incompatible with the aim of jaroslav@265: protecting users' freedom to change the software. The systematic jaroslav@265: pattern of such abuse occurs in the area of products for individuals to jaroslav@265: use, which is precisely where it is most unacceptable. Therefore, we jaroslav@265: have designed this version of the GPL to prohibit the practice for those jaroslav@265: products. If such problems arise substantially in other domains, we jaroslav@265: stand ready to extend this provision to those domains in future versions jaroslav@265: of the GPL, as needed to protect the freedom of users. jaroslav@265: jaroslav@265: Finally, every program is threatened constantly by software patents. jaroslav@265: States should not allow patents to restrict development and use of jaroslav@265: software on general-purpose computers, but in those that do, we wish to jaroslav@265: avoid the special danger that patents applied to a free program could jaroslav@265: make it effectively proprietary. To prevent this, the GPL assures that jaroslav@265: patents cannot be used to render the program non-free. jaroslav@265: jaroslav@265: The precise terms and conditions for copying, distribution and jaroslav@265: modification follow. jaroslav@265: jaroslav@265: TERMS AND CONDITIONS jaroslav@265: jaroslav@265: 0. Definitions. jaroslav@265: jaroslav@265: "This License" refers to version 3 of the GNU General Public License. jaroslav@265: jaroslav@265: "Copyright" also means copyright-like laws that apply to other kinds of jaroslav@265: works, such as semiconductor masks. jaroslav@265: jaroslav@265: "The Program" refers to any copyrightable work licensed under this jaroslav@265: License. Each licensee is addressed as "you". "Licensees" and jaroslav@265: "recipients" may be individuals or organizations. jaroslav@265: jaroslav@265: To "modify" a work means to copy from or adapt all or part of the work jaroslav@265: in a fashion requiring copyright permission, other than the making of an jaroslav@265: exact copy. 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Mere interaction with a user through jaroslav@265: a computer network, with no transfer of a copy, is not conveying. jaroslav@265: jaroslav@265: An interactive user interface displays "Appropriate Legal Notices" jaroslav@265: to the extent that it includes a convenient and prominently visible jaroslav@265: feature that (1) displays an appropriate copyright notice, and (2) jaroslav@265: tells the user that there is no warranty for the work (except to the jaroslav@265: extent that warranties are provided), that licensees may convey the jaroslav@265: work under this License, and how to view a copy of this License. If jaroslav@265: the interface presents a list of user commands or options, such as a jaroslav@265: menu, a prominent item in the list meets this criterion. jaroslav@265: jaroslav@265: 1. Source Code. jaroslav@265: jaroslav@265: The "source code" for a work means the preferred form of the work jaroslav@265: for making modifications to it. "Object code" means any non-source jaroslav@265: form of a work. jaroslav@265: jaroslav@265: A "Standard Interface" means an interface that either is an official jaroslav@265: standard defined by a recognized standards body, or, in the case of jaroslav@265: interfaces specified for a particular programming language, one that jaroslav@265: is widely used among developers working in that language. jaroslav@265: jaroslav@265: The "System Libraries" of an executable work include anything, other jaroslav@265: than the work as a whole, that (a) is included in the normal form of jaroslav@265: packaging a Major Component, but which is not part of that Major jaroslav@265: Component, and (b) serves only to enable use of the work with that jaroslav@265: Major Component, or to implement a Standard Interface for which an jaroslav@265: implementation is available to the public in source code form. 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For example, Corresponding Source jaroslav@265: includes interface definition files associated with source files for jaroslav@265: the work, and the source code for shared libraries and dynamically jaroslav@265: linked subprograms that the work is specifically designed to require, jaroslav@265: such as by intimate data communication or control flow between those jaroslav@265: subprograms and other parts of the work. jaroslav@265: jaroslav@265: The Corresponding Source need not include anything that users jaroslav@265: can regenerate automatically from other parts of the Corresponding jaroslav@265: Source. jaroslav@265: jaroslav@265: The Corresponding Source for a work in source code form is that jaroslav@265: same work. jaroslav@265: jaroslav@265: 2. Basic Permissions. jaroslav@265: jaroslav@265: All rights granted under this License are granted for the term of jaroslav@265: copyright on the Program, and are irrevocable provided the stated jaroslav@265: conditions are met. This License explicitly affirms your unlimited jaroslav@265: permission to run the unmodified Program. The output from running a jaroslav@265: covered work is covered by this License only if the output, given its jaroslav@265: content, constitutes a covered work. This License acknowledges your jaroslav@265: rights of fair use or other equivalent, as provided by copyright law. jaroslav@265: jaroslav@265: You may make, run and propagate covered works that you do not jaroslav@265: convey, without conditions so long as your license otherwise remains jaroslav@265: in force. You may convey covered works to others for the sole purpose jaroslav@265: of having them make modifications exclusively for you, or provide you jaroslav@265: with facilities for running those works, provided that you comply with jaroslav@265: the terms of this License in conveying all material for which you do jaroslav@265: not control copyright. Those thus making or running the covered works jaroslav@265: for you must do so exclusively on your behalf, under your direction jaroslav@265: and control, on terms that prohibit them from making any copies of jaroslav@265: your copyrighted material outside their relationship with you. jaroslav@265: jaroslav@265: Conveying under any other circumstances is permitted solely under jaroslav@265: the conditions stated below. Sublicensing is not allowed; section 10 jaroslav@265: makes it unnecessary. jaroslav@265: jaroslav@265: 3. Protecting Users' Legal Rights From Anti-Circumvention Law. jaroslav@265: jaroslav@265: No covered work shall be deemed part of an effective technological jaroslav@265: measure under any applicable law fulfilling obligations under article jaroslav@265: 11 of the WIPO copyright treaty adopted on 20 December 1996, or jaroslav@265: similar laws prohibiting or restricting circumvention of such jaroslav@265: measures. jaroslav@265: jaroslav@265: When you convey a covered work, you waive any legal power to forbid jaroslav@265: circumvention of technological measures to the extent such circumvention jaroslav@265: is effected by exercising rights under this License with respect to jaroslav@265: the covered work, and you disclaim any intention to limit operation or jaroslav@265: modification of the work as a means of enforcing, against the work's jaroslav@265: users, your or third parties' legal rights to forbid circumvention of jaroslav@265: technological measures. jaroslav@265: jaroslav@265: 4. Conveying Verbatim Copies. jaroslav@265: jaroslav@265: You may convey verbatim copies of the Program's source code as you jaroslav@265: receive it, in any medium, provided that you conspicuously and jaroslav@265: appropriately publish on each copy an appropriate copyright notice; jaroslav@265: keep intact all notices stating that this License and any jaroslav@265: non-permissive terms added in accord with section 7 apply to the code; jaroslav@265: keep intact all notices of the absence of any warranty; and give all jaroslav@265: recipients a copy of this License along with the Program. jaroslav@265: jaroslav@265: You may charge any price or no price for each copy that you convey, jaroslav@265: and you may offer support or warranty protection for a fee. jaroslav@265: jaroslav@265: 5. Conveying Modified Source Versions. jaroslav@265: jaroslav@265: You may convey a work based on the Program, or the modifications to jaroslav@265: produce it from the Program, in the form of source code under the jaroslav@265: terms of section 4, provided that you also meet all of these conditions: jaroslav@265: jaroslav@265: a) The work must carry prominent notices stating that you modified jaroslav@265: it, and giving a relevant date. jaroslav@265: jaroslav@265: b) The work must carry prominent notices stating that it is jaroslav@265: released under this License and any conditions added under section jaroslav@265: 7. This requirement modifies the requirement in section 4 to jaroslav@265: "keep intact all notices". jaroslav@265: jaroslav@265: c) You must license the entire work, as a whole, under this jaroslav@265: License to anyone who comes into possession of a copy. This jaroslav@265: License will therefore apply, along with any applicable section 7 jaroslav@265: additional terms, to the whole of the work, and all its parts, jaroslav@265: regardless of how they are packaged. This License gives no jaroslav@265: permission to license the work in any other way, but it does not jaroslav@265: invalidate such permission if you have separately received it. jaroslav@265: jaroslav@265: d) If the work has interactive user interfaces, each must display jaroslav@265: Appropriate Legal Notices; however, if the Program has interactive jaroslav@265: interfaces that do not display Appropriate Legal Notices, your jaroslav@265: work need not make them do so. jaroslav@265: jaroslav@265: A compilation of a covered work with other separate and independent jaroslav@265: works, which are not by their nature extensions of the covered work, jaroslav@265: and which are not combined with it such as to form a larger program, jaroslav@265: in or on a volume of a storage or distribution medium, is called an jaroslav@265: "aggregate" if the compilation and its resulting copyright are not jaroslav@265: used to limit the access or legal rights of the compilation's users jaroslav@265: beyond what the individual works permit. Inclusion of a covered work jaroslav@265: in an aggregate does not cause this License to apply to the other jaroslav@265: parts of the aggregate. jaroslav@265: jaroslav@265: 6. Conveying Non-Source Forms. jaroslav@265: jaroslav@265: You may convey a covered work in object code form under the terms jaroslav@265: of sections 4 and 5, provided that you also convey the jaroslav@265: machine-readable Corresponding Source under the terms of this License, jaroslav@265: in one of these ways: jaroslav@265: jaroslav@265: a) Convey the object code in, or embodied in, a physical product jaroslav@265: (including a physical distribution medium), accompanied by the jaroslav@265: Corresponding Source fixed on a durable physical medium jaroslav@265: customarily used for software interchange. jaroslav@265: jaroslav@265: b) Convey the object code in, or embodied in, a physical product jaroslav@265: (including a physical distribution medium), accompanied by a jaroslav@265: written offer, valid for at least three years and valid for as jaroslav@265: long as you offer spare parts or customer support for that product jaroslav@265: model, to give anyone who possesses the object code either (1) a jaroslav@265: copy of the Corresponding Source for all the software in the jaroslav@265: product that is covered by this License, on a durable physical jaroslav@265: medium customarily used for software interchange, for a price no jaroslav@265: more than your reasonable cost of physically performing this jaroslav@265: conveying of source, or (2) access to copy the jaroslav@265: Corresponding Source from a network server at no charge. jaroslav@265: jaroslav@265: c) Convey individual copies of the object code with a copy of the jaroslav@265: written offer to provide the Corresponding Source. This jaroslav@265: alternative is allowed only occasionally and noncommercially, and jaroslav@265: only if you received the object code with such an offer, in accord jaroslav@265: with subsection 6b. jaroslav@265: jaroslav@265: d) Convey the object code by offering access from a designated jaroslav@265: place (gratis or for a charge), and offer equivalent access to the jaroslav@265: Corresponding Source in the same way through the same place at no jaroslav@265: further charge. You need not require recipients to copy the jaroslav@265: Corresponding Source along with the object code. If the place to jaroslav@265: copy the object code is a network server, the Corresponding Source jaroslav@265: may be on a different server (operated by you or a third party) jaroslav@265: that supports equivalent copying facilities, provided you maintain jaroslav@265: clear directions next to the object code saying where to find the jaroslav@265: Corresponding Source. Regardless of what server hosts the jaroslav@265: Corresponding Source, you remain obligated to ensure that it is jaroslav@265: available for as long as needed to satisfy these requirements. jaroslav@265: jaroslav@265: e) Convey the object code using peer-to-peer transmission, provided jaroslav@265: you inform other peers where the object code and Corresponding jaroslav@265: Source of the work are being offered to the general public at no jaroslav@265: charge under subsection 6d. jaroslav@265: jaroslav@265: A separable portion of the object code, whose source code is excluded jaroslav@265: from the Corresponding Source as a System Library, need not be jaroslav@265: included in conveying the object code work. jaroslav@265: jaroslav@265: A "User Product" is either (1) a "consumer product", which means any jaroslav@265: tangible personal property which is normally used for personal, family, jaroslav@265: or household purposes, or (2) anything designed or sold for incorporation jaroslav@265: into a dwelling. In determining whether a product is a consumer product, jaroslav@265: doubtful cases shall be resolved in favor of coverage. For a particular jaroslav@265: product received by a particular user, "normally used" refers to a jaroslav@265: typical or common use of that class of product, regardless of the status jaroslav@265: of the particular user or of the way in which the particular user jaroslav@265: actually uses, or expects or is expected to use, the product. A product jaroslav@265: is a consumer product regardless of whether the product has substantial jaroslav@265: commercial, industrial or non-consumer uses, unless such uses represent jaroslav@265: the only significant mode of use of the product. jaroslav@265: jaroslav@265: "Installation Information" for a User Product means any methods, jaroslav@265: procedures, authorization keys, or other information required to install jaroslav@265: and execute modified versions of a covered work in that User Product from jaroslav@265: a modified version of its Corresponding Source. The information must jaroslav@265: suffice to ensure that the continued functioning of the modified object jaroslav@265: code is in no case prevented or interfered with solely because jaroslav@265: modification has been made. jaroslav@265: jaroslav@265: If you convey an object code work under this section in, or with, or jaroslav@265: specifically for use in, a User Product, and the conveying occurs as jaroslav@265: part of a transaction in which the right of possession and use of the jaroslav@265: User Product is transferred to the recipient in perpetuity or for a jaroslav@265: fixed term (regardless of how the transaction is characterized), the jaroslav@265: Corresponding Source conveyed under this section must be accompanied jaroslav@265: by the Installation Information. But this requirement does not apply jaroslav@265: if neither you nor any third party retains the ability to install jaroslav@265: modified object code on the User Product (for example, the work has jaroslav@265: been installed in ROM). jaroslav@265: jaroslav@265: The requirement to provide Installation Information does not include a jaroslav@265: requirement to continue to provide support service, warranty, or updates jaroslav@265: for a work that has been modified or installed by the recipient, or for jaroslav@265: the User Product in which it has been modified or installed. Access to a jaroslav@265: network may be denied when the modification itself materially and jaroslav@265: adversely affects the operation of the network or violates the rules and jaroslav@265: protocols for communication across the network. jaroslav@265: jaroslav@265: Corresponding Source conveyed, and Installation Information provided, jaroslav@265: in accord with this section must be in a format that is publicly jaroslav@265: documented (and with an implementation available to the public in jaroslav@265: source code form), and must require no special password or key for jaroslav@265: unpacking, reading or copying. jaroslav@265: jaroslav@265: 7. Additional Terms. jaroslav@265: jaroslav@265: "Additional permissions" are terms that supplement the terms of this jaroslav@265: License by making exceptions from one or more of its conditions. jaroslav@265: Additional permissions that are applicable to the entire Program shall jaroslav@265: be treated as though they were included in this License, to the extent jaroslav@265: that they are valid under applicable law. If additional permissions jaroslav@265: apply only to part of the Program, that part may be used separately jaroslav@265: under those permissions, but the entire Program remains governed by jaroslav@265: this License without regard to the additional permissions. jaroslav@265: jaroslav@265: When you convey a copy of a covered work, you may at your option jaroslav@265: remove any additional permissions from that copy, or from any part of jaroslav@265: it. (Additional permissions may be written to require their own jaroslav@265: removal in certain cases when you modify the work.) You may place jaroslav@265: additional permissions on material, added by you to a covered work, jaroslav@265: for which you have or can give appropriate copyright permission. jaroslav@265: jaroslav@265: Notwithstanding any other provision of this License, for material you jaroslav@265: add to a covered work, you may (if authorized by the copyright holders of jaroslav@265: that material) supplement the terms of this License with terms: jaroslav@265: jaroslav@265: a) Disclaiming warranty or limiting liability differently from the jaroslav@265: terms of sections 15 and 16 of this License; or jaroslav@265: jaroslav@265: b) Requiring preservation of specified reasonable legal notices or jaroslav@265: author attributions in that material or in the Appropriate Legal jaroslav@265: Notices displayed by works containing it; or jaroslav@265: jaroslav@265: c) Prohibiting misrepresentation of the origin of that material, or jaroslav@265: requiring that modified versions of such material be marked in jaroslav@265: reasonable ways as different from the original version; or jaroslav@265: jaroslav@265: d) Limiting the use for publicity purposes of names of licensors or jaroslav@265: authors of the material; or jaroslav@265: jaroslav@265: e) Declining to grant rights under trademark law for use of some jaroslav@265: trade names, trademarks, or service marks; or jaroslav@265: jaroslav@265: f) Requiring indemnification of licensors and authors of that jaroslav@265: material by anyone who conveys the material (or modified versions of jaroslav@265: it) with contractual assumptions of liability to the recipient, for jaroslav@265: any liability that these contractual assumptions directly impose on jaroslav@265: those licensors and authors. jaroslav@265: jaroslav@265: All other non-permissive additional terms are considered "further jaroslav@265: restrictions" within the meaning of section 10. If the Program as you jaroslav@265: received it, or any part of it, contains a notice stating that it is jaroslav@265: governed by this License along with a term that is a further jaroslav@265: restriction, you may remove that term. If a license document contains jaroslav@265: a further restriction but permits relicensing or conveying under this jaroslav@265: License, you may add to a covered work material governed by the terms jaroslav@265: of that license document, provided that the further restriction does jaroslav@265: not survive such relicensing or conveying. jaroslav@265: jaroslav@265: If you add terms to a covered work in accord with this section, you jaroslav@265: must place, in the relevant source files, a statement of the jaroslav@265: additional terms that apply to those files, or a notice indicating jaroslav@265: where to find the applicable terms. jaroslav@265: jaroslav@265: Additional terms, permissive or non-permissive, may be stated in the jaroslav@265: form of a separately written license, or stated as exceptions; jaroslav@265: the above requirements apply either way. jaroslav@265: jaroslav@265: 8. Termination. jaroslav@265: jaroslav@265: You may not propagate or modify a covered work except as expressly jaroslav@265: provided under this License. Any attempt otherwise to propagate or jaroslav@265: modify it is void, and will automatically terminate your rights under jaroslav@265: this License (including any patent licenses granted under the third jaroslav@265: paragraph of section 11). jaroslav@265: jaroslav@265: However, if you cease all violation of this License, then your jaroslav@265: license from a particular copyright holder is reinstated (a) jaroslav@265: provisionally, unless and until the copyright holder explicitly and jaroslav@265: finally terminates your license, and (b) permanently, if the copyright jaroslav@265: holder fails to notify you of the violation by some reasonable means jaroslav@265: prior to 60 days after the cessation. jaroslav@265: jaroslav@265: Moreover, your license from a particular copyright holder is jaroslav@265: reinstated permanently if the copyright holder notifies you of the jaroslav@265: violation by some reasonable means, this is the first time you have jaroslav@265: received notice of violation of this License (for any work) from that jaroslav@265: copyright holder, and you cure the violation prior to 30 days after jaroslav@265: your receipt of the notice. jaroslav@265: jaroslav@265: Termination of your rights under this section does not terminate the jaroslav@265: licenses of parties who have received copies or rights from you under jaroslav@265: this License. If your rights have been terminated and not permanently jaroslav@265: reinstated, you do not qualify to receive new licenses for the same jaroslav@265: material under section 10. jaroslav@265: jaroslav@265: 9. Acceptance Not Required for Having Copies. jaroslav@265: jaroslav@265: You are not required to accept this License in order to receive or jaroslav@265: run a copy of the Program. Ancillary propagation of a covered work jaroslav@265: occurring solely as a consequence of using peer-to-peer transmission jaroslav@265: to receive a copy likewise does not require acceptance. However, jaroslav@265: nothing other than this License grants you permission to propagate or jaroslav@265: modify any covered work. These actions infringe copyright if you do jaroslav@265: not accept this License. Therefore, by modifying or propagating a jaroslav@265: covered work, you indicate your acceptance of this License to do so. jaroslav@265: jaroslav@265: 10. Automatic Licensing of Downstream Recipients. jaroslav@265: jaroslav@265: Each time you convey a covered work, the recipient automatically jaroslav@265: receives a license from the original licensors, to run, modify and jaroslav@265: propagate that work, subject to this License. You are not responsible jaroslav@265: for enforcing compliance by third parties with this License. jaroslav@265: jaroslav@265: An "entity transaction" is a transaction transferring control of an jaroslav@265: organization, or substantially all assets of one, or subdividing an jaroslav@265: organization, or merging organizations. If propagation of a covered jaroslav@265: work results from an entity transaction, each party to that jaroslav@265: transaction who receives a copy of the work also receives whatever jaroslav@265: licenses to the work the party's predecessor in interest had or could jaroslav@265: give under the previous paragraph, plus a right to possession of the jaroslav@265: Corresponding Source of the work from the predecessor in interest, if jaroslav@265: the predecessor has it or can get it with reasonable efforts. jaroslav@265: jaroslav@265: You may not impose any further restrictions on the exercise of the jaroslav@265: rights granted or affirmed under this License. For example, you may jaroslav@265: not impose a license fee, royalty, or other charge for exercise of jaroslav@265: rights granted under this License, and you may not initiate litigation jaroslav@265: (including a cross-claim or counterclaim in a lawsuit) alleging that jaroslav@265: any patent claim is infringed by making, using, selling, offering for jaroslav@265: sale, or importing the Program or any portion of it. jaroslav@265: jaroslav@265: 11. Patents. jaroslav@265: jaroslav@265: A "contributor" is a copyright holder who authorizes use under this jaroslav@265: License of the Program or a work on which the Program is based. The jaroslav@265: work thus licensed is called the contributor's "contributor version". jaroslav@265: jaroslav@265: A contributor's "essential patent claims" are all patent claims jaroslav@265: owned or controlled by the contributor, whether already acquired or jaroslav@265: hereafter acquired, that would be infringed by some manner, permitted jaroslav@265: by this License, of making, using, or selling its contributor version, jaroslav@265: but do not include claims that would be infringed only as a jaroslav@265: consequence of further modification of the contributor version. For jaroslav@265: purposes of this definition, "control" includes the right to grant jaroslav@265: patent sublicenses in a manner consistent with the requirements of jaroslav@265: this License. jaroslav@265: jaroslav@265: Each contributor grants you a non-exclusive, worldwide, royalty-free jaroslav@265: patent license under the contributor's essential patent claims, to jaroslav@265: make, use, sell, offer for sale, import and otherwise run, modify and jaroslav@265: propagate the contents of its contributor version. jaroslav@265: jaroslav@265: In the following three paragraphs, a "patent license" is any express jaroslav@265: agreement or commitment, however denominated, not to enforce a patent jaroslav@265: (such as an express permission to practice a patent or covenant not to jaroslav@265: sue for patent infringement). To "grant" such a patent license to a jaroslav@265: party means to make such an agreement or commitment not to enforce a jaroslav@265: patent against the party. jaroslav@265: jaroslav@265: If you convey a covered work, knowingly relying on a patent license, jaroslav@265: and the Corresponding Source of the work is not available for anyone jaroslav@265: to copy, free of charge and under the terms of this License, through a jaroslav@265: publicly available network server or other readily accessible means, jaroslav@265: then you must either (1) cause the Corresponding Source to be so jaroslav@265: available, or (2) arrange to deprive yourself of the benefit of the jaroslav@265: patent license for this particular work, or (3) arrange, in a manner jaroslav@265: consistent with the requirements of this License, to extend the patent jaroslav@265: license to downstream recipients. "Knowingly relying" means you have jaroslav@265: actual knowledge that, but for the patent license, your conveying the jaroslav@265: covered work in a country, or your recipient's use of the covered work jaroslav@265: in a country, would infringe one or more identifiable patents in that jaroslav@265: country that you have reason to believe are valid. jaroslav@265: jaroslav@265: If, pursuant to or in connection with a single transaction or jaroslav@265: arrangement, you convey, or propagate by procuring conveyance of, a jaroslav@265: covered work, and grant a patent license to some of the parties jaroslav@265: receiving the covered work authorizing them to use, propagate, modify jaroslav@265: or convey a specific copy of the covered work, then the patent license jaroslav@265: you grant is automatically extended to all recipients of the covered jaroslav@265: work and works based on it. jaroslav@265: jaroslav@265: A patent license is "discriminatory" if it does not include within jaroslav@265: the scope of its coverage, prohibits the exercise of, or is jaroslav@265: conditioned on the non-exercise of one or more of the rights that are jaroslav@265: specifically granted under this License. You may not convey a covered jaroslav@265: work if you are a party to an arrangement with a third party that is jaroslav@265: in the business of distributing software, under which you make payment jaroslav@265: to the third party based on the extent of your activity of conveying jaroslav@265: the work, and under which the third party grants, to any of the jaroslav@265: parties who would receive the covered work from you, a discriminatory jaroslav@265: patent license (a) in connection with copies of the covered work jaroslav@265: conveyed by you (or copies made from those copies), or (b) primarily jaroslav@265: for and in connection with specific products or compilations that jaroslav@265: contain the covered work, unless you entered into that arrangement, jaroslav@265: or that patent license was granted, prior to 28 March 2007. jaroslav@265: jaroslav@265: Nothing in this License shall be construed as excluding or limiting jaroslav@265: any implied license or other defenses to infringement that may jaroslav@265: otherwise be available to you under applicable patent law. jaroslav@265: jaroslav@265: 12. No Surrender of Others' Freedom. jaroslav@265: jaroslav@265: If conditions are imposed on you (whether by court order, agreement or jaroslav@265: otherwise) that contradict the conditions of this License, they do not jaroslav@265: excuse you from the conditions of this License. If you cannot convey a jaroslav@265: covered work so as to satisfy simultaneously your obligations under this jaroslav@265: License and any other pertinent obligations, then as a consequence you may jaroslav@265: not convey it at all. For example, if you agree to terms that obligate you jaroslav@265: to collect a royalty for further conveying from those to whom you convey jaroslav@265: the Program, the only way you could satisfy both those terms and this jaroslav@265: License would be to refrain entirely from conveying the Program. jaroslav@265: jaroslav@265: 13. 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Such new versions will jaroslav@265: be similar in spirit to the present version, but may differ in detail to jaroslav@265: address new problems or concerns. jaroslav@265: jaroslav@265: Each version is given a distinguishing version number. If the jaroslav@265: Program specifies that a certain numbered version of the GNU General jaroslav@265: Public License "or any later version" applies to it, you have the jaroslav@265: option of following the terms and conditions either of that numbered jaroslav@265: version or of any later version published by the Free Software jaroslav@265: Foundation. If the Program does not specify a version number of the jaroslav@265: GNU General Public License, you may choose any version ever published jaroslav@265: by the Free Software Foundation. jaroslav@265: jaroslav@265: If the Program specifies that a proxy can decide which future jaroslav@265: versions of the GNU General Public License can be used, that proxy's jaroslav@265: public statement of acceptance of a version permanently authorizes you jaroslav@265: to choose that version for the Program. jaroslav@265: jaroslav@265: Later license versions may give you additional or different jaroslav@265: permissions. However, no additional obligations are imposed on any jaroslav@265: author or copyright holder as a result of your choosing to follow a jaroslav@265: later version. jaroslav@265: jaroslav@265: 15. Disclaimer of Warranty. jaroslav@265: jaroslav@265: THERE IS NO WARRANTY FOR THE PROGRAM, TO THE EXTENT PERMITTED BY jaroslav@265: APPLICABLE LAW. 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Interpretation of Sections 15 and 16. jaroslav@265: jaroslav@265: If the disclaimer of warranty and limitation of liability provided jaroslav@265: above cannot be given local legal effect according to their terms, jaroslav@265: reviewing courts shall apply local law that most closely approximates jaroslav@265: an absolute waiver of all civil liability in connection with the jaroslav@265: Program, unless a warranty or assumption of liability accompanies a jaroslav@265: copy of the Program in return for a fee. jaroslav@265: jaroslav@265: END OF TERMS AND CONDITIONS