Annotation of gforth/COPYING, revision 1.3

1.3     ! anton       1:                     GNU GENERAL PUBLIC LICENSE
        !             2:                        Version 3, 29 June 2007
1.1       anton       3: 
1.3     ! anton       4:  Copyright (C) 2007 Free Software Foundation, Inc. <>
1.1       anton       5:  Everyone is permitted to copy and distribute verbatim copies
                      6:  of this license document, but changing it is not allowed.
1.3     ! anton       8:                             Preamble
1.1       anton       9: 
1.3     ! anton      10:   The GNU General Public License is a free, copyleft license for
        !            11: software and other kinds of works.
        !            12: 
        !            13:   The licenses for most software and other practical works are designed
        !            14: to take away your freedom to share and change the works.  By contrast,
        !            15: the GNU General Public License is intended to guarantee your freedom to
        !            16: share and change all versions of a program--to make sure it remains free
        !            17: software for all its users.  We, the Free Software Foundation, use the
        !            18: GNU General Public License for most of our software; it applies also to
        !            19: any other work released this way by its authors.  You can apply it to
1.1       anton      20: your programs, too.
                     22:   When we speak of free software, we are referring to freedom, not
                     23: price.  Our General Public Licenses are designed to make sure that you
                     24: have the freedom to distribute copies of free software (and charge for
1.3     ! anton      25: them if you wish), that you receive source code or can get it if you
        !            26: want it, that you can change the software or use pieces of it in new
        !            27: free programs, and that you know you can do these things.
        !            28: 
        !            29:   To protect your rights, we need to prevent others from denying you
        !            30: these rights or asking you to surrender the rights.  Therefore, you have
        !            31: certain responsibilities if you distribute copies of the software, or if
        !            32: you modify it: responsibilities to respect the freedom of others.
1.1       anton      33: 
                     34:   For example, if you distribute copies of such a program, whether
1.3     ! anton      35: gratis or for a fee, you must pass on to the recipients the same
        !            36: freedoms that you received.  You must make sure that they, too, receive
        !            37: or can get the source code.  And you must show them these terms so they
        !            38: know their rights.
        !            39: 
        !            40:   Developers that use the GNU GPL protect your rights with two steps:
        !            41: (1) assert copyright on the software, and (2) offer you this License
        !            42: giving you legal permission to copy, distribute and/or modify it.
        !            43: 
        !            44:   For the developers' and authors' protection, the GPL clearly explains
        !            45: that there is no warranty for this free software.  For both users' and
        !            46: authors' sake, the GPL requires that modified versions be marked as
        !            47: changed, so that their problems will not be attributed erroneously to
        !            48: authors of previous versions.
        !            49: 
        !            50:   Some devices are designed to deny users access to install or run
        !            51: modified versions of the software inside them, although the manufacturer
        !            52: can do so.  This is fundamentally incompatible with the aim of
        !            53: protecting users' freedom to change the software.  The systematic
        !            54: pattern of such abuse occurs in the area of products for individuals to
        !            55: use, which is precisely where it is most unacceptable.  Therefore, we
        !            56: have designed this version of the GPL to prohibit the practice for those
        !            57: products.  If such problems arise substantially in other domains, we
        !            58: stand ready to extend this provision to those domains in future versions
        !            59: of the GPL, as needed to protect the freedom of users.
        !            60: 
        !            61:   Finally, every program is threatened constantly by software patents.
        !            62: States should not allow patents to restrict development and use of
        !            63: software on general-purpose computers, but in those that do, we wish to
        !            64: avoid the special danger that patents applied to a free program could
        !            65: make it effectively proprietary.  To prevent this, the GPL assures that
        !            66: patents cannot be used to render the program non-free.
1.1       anton      67: 
                     68:   The precise terms and conditions for copying, distribution and
                     69: modification follow.
1.3     ! anton      70: 
        !            71:                        TERMS AND CONDITIONS
        !            72: 
        !            73:   0. Definitions.
        !            74: 
        !            75:   "This License" refers to version 3 of the GNU General Public License.
        !            76: 
        !            77:   "Copyright" also means copyright-like laws that apply to other kinds of
        !            78: works, such as semiconductor masks.
        !            79: 
        !            80:   "The Program" refers to any copyrightable work licensed under this
        !            81: License.  Each licensee is addressed as "you".  "Licensees" and
        !            82: "recipients" may be individuals or organizations.
        !            83: 
        !            84:   To "modify" a work means to copy from or adapt all or part of the work
        !            85: in a fashion requiring copyright permission, other than the making of an
        !            86: exact copy.  The resulting work is called a "modified version" of the
        !            87: earlier work or a work "based on" the earlier work.
        !            88: 
        !            89:   A "covered work" means either the unmodified Program or a work based
        !            90: on the Program.
        !            91: 
        !            92:   To "propagate" a work means to do anything with it that, without
        !            93: permission, would make you directly or secondarily liable for
        !            94: infringement under applicable copyright law, except executing it on a
        !            95: computer or modifying a private copy.  Propagation includes copying,
        !            96: distribution (with or without modification), making available to the
        !            97: public, and in some countries other activities as well.
        !            98: 
        !            99:   To "convey" a work means any kind of propagation that enables other
        !           100: parties to make or receive copies.  Mere interaction with a user through
        !           101: a computer network, with no transfer of a copy, is not conveying.
        !           102: 
        !           103:   An interactive user interface displays "Appropriate Legal Notices"
        !           104: to the extent that it includes a convenient and prominently visible
        !           105: feature that (1) displays an appropriate copyright notice, and (2)
        !           106: tells the user that there is no warranty for the work (except to the
        !           107: extent that warranties are provided), that licensees may convey the
        !           108: work under this License, and how to view a copy of this License.  If
        !           109: the interface presents a list of user commands or options, such as a
        !           110: menu, a prominent item in the list meets this criterion.
        !           111: 
        !           112:   1. Source Code.
        !           113: 
        !           114:   The "source code" for a work means the preferred form of the work
        !           115: for making modifications to it.  "Object code" means any non-source
        !           116: form of a work.
        !           117: 
        !           118:   A "Standard Interface" means an interface that either is an official
        !           119: standard defined by a recognized standards body, or, in the case of
        !           120: interfaces specified for a particular programming language, one that
        !           121: is widely used among developers working in that language.
        !           122: 
        !           123:   The "System Libraries" of an executable work include anything, other
        !           124: than the work as a whole, that (a) is included in the normal form of
        !           125: packaging a Major Component, but which is not part of that Major
        !           126: Component, and (b) serves only to enable use of the work with that
        !           127: Major Component, or to implement a Standard Interface for which an
        !           128: implementation is available to the public in source code form.  A
        !           129: "Major Component", in this context, means a major essential component
        !           130: (kernel, window system, and so on) of the specific operating system
        !           131: (if any) on which the executable work runs, or a compiler used to
        !           132: produce the work, or an object code interpreter used to run it.
        !           133: 
        !           134:   The "Corresponding Source" for a work in object code form means all
        !           135: the source code needed to generate, install, and (for an executable
        !           136: work) run the object code and to modify the work, including scripts to
        !           137: control those activities.  However, it does not include the work's
        !           138: System Libraries, or general-purpose tools or generally available free
        !           139: programs which are used unmodified in performing those activities but
        !           140: which are not part of the work.  For example, Corresponding Source
        !           141: includes interface definition files associated with source files for
        !           142: the work, and the source code for shared libraries and dynamically
        !           143: linked subprograms that the work is specifically designed to require,
        !           144: such as by intimate data communication or control flow between those
        !           145: subprograms and other parts of the work.
        !           146: 
        !           147:   The Corresponding Source need not include anything that users
        !           148: can regenerate automatically from other parts of the Corresponding
        !           149: Source.
        !           150: 
        !           151:   The Corresponding Source for a work in source code form is that
        !           152: same work.
        !           153: 
        !           154:   2. Basic Permissions.
        !           155: 
        !           156:   All rights granted under this License are granted for the term of
        !           157: copyright on the Program, and are irrevocable provided the stated
        !           158: conditions are met.  This License explicitly affirms your unlimited
        !           159: permission to run the unmodified Program.  The output from running a
        !           160: covered work is covered by this License only if the output, given its
        !           161: content, constitutes a covered work.  This License acknowledges your
        !           162: rights of fair use or other equivalent, as provided by copyright law.
        !           163: 
        !           164:   You may make, run and propagate covered works that you do not
        !           165: convey, without conditions so long as your license otherwise remains
        !           166: in force.  You may convey covered works to others for the sole purpose
        !           167: of having them make modifications exclusively for you, or provide you
        !           168: with facilities for running those works, provided that you comply with
        !           169: the terms of this License in conveying all material for which you do
        !           170: not control copyright.  Those thus making or running the covered works
        !           171: for you must do so exclusively on your behalf, under your direction
        !           172: and control, on terms that prohibit them from making any copies of
        !           173: your copyrighted material outside their relationship with you.
        !           174: 
        !           175:   Conveying under any other circumstances is permitted solely under
        !           176: the conditions stated below.  Sublicensing is not allowed; section 10
        !           177: makes it unnecessary.
        !           178: 
        !           179:   3. Protecting Users' Legal Rights From Anti-Circumvention Law.
        !           180: 
        !           181:   No covered work shall be deemed part of an effective technological
        !           182: measure under any applicable law fulfilling obligations under article
        !           183: 11 of the WIPO copyright treaty adopted on 20 December 1996, or
        !           184: similar laws prohibiting or restricting circumvention of such
        !           185: measures.
        !           186: 
        !           187:   When you convey a covered work, you waive any legal power to forbid
        !           188: circumvention of technological measures to the extent such circumvention
        !           189: is effected by exercising rights under this License with respect to
        !           190: the covered work, and you disclaim any intention to limit operation or
        !           191: modification of the work as a means of enforcing, against the work's
        !           192: users, your or third parties' legal rights to forbid circumvention of
        !           193: technological measures.
        !           194: 
        !           195:   4. Conveying Verbatim Copies.
        !           196: 
        !           197:   You may convey verbatim copies of the Program's source code as you
        !           198: receive it, in any medium, provided that you conspicuously and
        !           199: appropriately publish on each copy an appropriate copyright notice;
        !           200: keep intact all notices stating that this License and any
        !           201: non-permissive terms added in accord with section 7 apply to the code;
        !           202: keep intact all notices of the absence of any warranty; and give all
        !           203: recipients a copy of this License along with the Program.
        !           204: 
        !           205:   You may charge any price or no price for each copy that you convey,
        !           206: and you may offer support or warranty protection for a fee.
        !           207: 
        !           208:   5. Conveying Modified Source Versions.
        !           209: 
        !           210:   You may convey a work based on the Program, or the modifications to
        !           211: produce it from the Program, in the form of source code under the
        !           212: terms of section 4, provided that you also meet all of these conditions:
        !           213: 
        !           214:     a) The work must carry prominent notices stating that you modified
        !           215:     it, and giving a relevant date.
        !           216: 
        !           217:     b) The work must carry prominent notices stating that it is
        !           218:     released under this License and any conditions added under section
        !           219:     7.  This requirement modifies the requirement in section 4 to
        !           220:     "keep intact all notices".
        !           221: 
        !           222:     c) You must license the entire work, as a whole, under this
        !           223:     License to anyone who comes into possession of a copy.  This
        !           224:     License will therefore apply, along with any applicable section 7
        !           225:     additional terms, to the whole of the work, and all its parts,
        !           226:     regardless of how they are packaged.  This License gives no
        !           227:     permission to license the work in any other way, but it does not
        !           228:     invalidate such permission if you have separately received it.
        !           229: 
        !           230:     d) If the work has interactive user interfaces, each must display
        !           231:     Appropriate Legal Notices; however, if the Program has interactive
        !           232:     interfaces that do not display Appropriate Legal Notices, your
        !           233:     work need not make them do so.
        !           234: 
        !           235:   A compilation of a covered work with other separate and independent
        !           236: works, which are not by their nature extensions of the covered work,
        !           237: and which are not combined with it such as to form a larger program,
        !           238: in or on a volume of a storage or distribution medium, is called an
        !           239: "aggregate" if the compilation and its resulting copyright are not
        !           240: used to limit the access or legal rights of the compilation's users
        !           241: beyond what the individual works permit.  Inclusion of a covered work
        !           242: in an aggregate does not cause this License to apply to the other
        !           243: parts of the aggregate.
        !           244: 
        !           245:   6. Conveying Non-Source Forms.
        !           246: 
        !           247:   You may convey a covered work in object code form under the terms
        !           248: of sections 4 and 5, provided that you also convey the
        !           249: machine-readable Corresponding Source under the terms of this License,
        !           250: in one of these ways:
        !           251: 
        !           252:     a) Convey the object code in, or embodied in, a physical product
        !           253:     (including a physical distribution medium), accompanied by the
        !           254:     Corresponding Source fixed on a durable physical medium
        !           255:     customarily used for software interchange.
        !           256: 
        !           257:     b) Convey the object code in, or embodied in, a physical product
        !           258:     (including a physical distribution medium), accompanied by a
        !           259:     written offer, valid for at least three years and valid for as
        !           260:     long as you offer spare parts or customer support for that product
        !           261:     model, to give anyone who possesses the object code either (1) a
        !           262:     copy of the Corresponding Source for all the software in the
        !           263:     product that is covered by this License, on a durable physical
        !           264:     medium customarily used for software interchange, for a price no
        !           265:     more than your reasonable cost of physically performing this
        !           266:     conveying of source, or (2) access to copy the
        !           267:     Corresponding Source from a network server at no charge.
        !           268: 
        !           269:     c) Convey individual copies of the object code with a copy of the
        !           270:     written offer to provide the Corresponding Source.  This
        !           271:     alternative is allowed only occasionally and noncommercially, and
        !           272:     only if you received the object code with such an offer, in accord
        !           273:     with subsection 6b.
        !           274: 
        !           275:     d) Convey the object code by offering access from a designated
        !           276:     place (gratis or for a charge), and offer equivalent access to the
        !           277:     Corresponding Source in the same way through the same place at no
        !           278:     further charge.  You need not require recipients to copy the
        !           279:     Corresponding Source along with the object code.  If the place to
        !           280:     copy the object code is a network server, the Corresponding Source
        !           281:     may be on a different server (operated by you or a third party)
        !           282:     that supports equivalent copying facilities, provided you maintain
        !           283:     clear directions next to the object code saying where to find the
        !           284:     Corresponding Source.  Regardless of what server hosts the
        !           285:     Corresponding Source, you remain obligated to ensure that it is
        !           286:     available for as long as needed to satisfy these requirements.
        !           287: 
        !           288:     e) Convey the object code using peer-to-peer transmission, provided
        !           289:     you inform other peers where the object code and Corresponding
        !           290:     Source of the work are being offered to the general public at no
        !           291:     charge under subsection 6d.
        !           292: 
        !           293:   A separable portion of the object code, whose source code is excluded
        !           294: from the Corresponding Source as a System Library, need not be
        !           295: included in conveying the object code work.
        !           296: 
        !           297:   A "User Product" is either (1) a "consumer product", which means any
        !           298: tangible personal property which is normally used for personal, family,
        !           299: or household purposes, or (2) anything designed or sold for incorporation
        !           300: into a dwelling.  In determining whether a product is a consumer product,
        !           301: doubtful cases shall be resolved in favor of coverage.  For a particular
        !           302: product received by a particular user, "normally used" refers to a
        !           303: typical or common use of that class of product, regardless of the status
        !           304: of the particular user or of the way in which the particular user
        !           305: actually uses, or expects or is expected to use, the product.  A product
        !           306: is a consumer product regardless of whether the product has substantial
        !           307: commercial, industrial or non-consumer uses, unless such uses represent
        !           308: the only significant mode of use of the product.
        !           309: 
        !           310:   "Installation Information" for a User Product means any methods,
        !           311: procedures, authorization keys, or other information required to install
        !           312: and execute modified versions of a covered work in that User Product from
        !           313: a modified version of its Corresponding Source.  The information must
        !           314: suffice to ensure that the continued functioning of the modified object
        !           315: code is in no case prevented or interfered with solely because
        !           316: modification has been made.
        !           317: 
        !           318:   If you convey an object code work under this section in, or with, or
        !           319: specifically for use in, a User Product, and the conveying occurs as
        !           320: part of a transaction in which the right of possession and use of the
        !           321: User Product is transferred to the recipient in perpetuity or for a
        !           322: fixed term (regardless of how the transaction is characterized), the
        !           323: Corresponding Source conveyed under this section must be accompanied
        !           324: by the Installation Information.  But this requirement does not apply
        !           325: if neither you nor any third party retains the ability to install
        !           326: modified object code on the User Product (for example, the work has
        !           327: been installed in ROM).
        !           328: 
        !           329:   The requirement to provide Installation Information does not include a
        !           330: requirement to continue to provide support service, warranty, or updates
        !           331: for a work that has been modified or installed by the recipient, or for
        !           332: the User Product in which it has been modified or installed.  Access to a
        !           333: network may be denied when the modification itself materially and
        !           334: adversely affects the operation of the network or violates the rules and
        !           335: protocols for communication across the network.
        !           336: 
        !           337:   Corresponding Source conveyed, and Installation Information provided,
        !           338: in accord with this section must be in a format that is publicly
        !           339: documented (and with an implementation available to the public in
        !           340: source code form), and must require no special password or key for
        !           341: unpacking, reading or copying.
        !           342: 
        !           343:   7. Additional Terms.
        !           344: 
        !           345:   "Additional permissions" are terms that supplement the terms of this
        !           346: License by making exceptions from one or more of its conditions.
        !           347: Additional permissions that are applicable to the entire Program shall
        !           348: be treated as though they were included in this License, to the extent
        !           349: that they are valid under applicable law.  If additional permissions
        !           350: apply only to part of the Program, that part may be used separately
        !           351: under those permissions, but the entire Program remains governed by
        !           352: this License without regard to the additional permissions.
        !           353: 
        !           354:   When you convey a copy of a covered work, you may at your option
        !           355: remove any additional permissions from that copy, or from any part of
        !           356: it.  (Additional permissions may be written to require their own
        !           357: removal in certain cases when you modify the work.)  You may place
        !           358: additional permissions on material, added by you to a covered work,
        !           359: for which you have or can give appropriate copyright permission.
        !           360: 
        !           361:   Notwithstanding any other provision of this License, for material you
        !           362: add to a covered work, you may (if authorized by the copyright holders of
        !           363: that material) supplement the terms of this License with terms:
        !           364: 
        !           365:     a) Disclaiming warranty or limiting liability differently from the
        !           366:     terms of sections 15 and 16 of this License; or
        !           367: 
        !           368:     b) Requiring preservation of specified reasonable legal notices or
        !           369:     author attributions in that material or in the Appropriate Legal
        !           370:     Notices displayed by works containing it; or
        !           371: 
        !           372:     c) Prohibiting misrepresentation of the origin of that material, or
        !           373:     requiring that modified versions of such material be marked in
        !           374:     reasonable ways as different from the original version; or
        !           375: 
        !           376:     d) Limiting the use for publicity purposes of names of licensors or
        !           377:     authors of the material; or
        !           378: 
        !           379:     e) Declining to grant rights under trademark law for use of some
        !           380:     trade names, trademarks, or service marks; or
        !           381: 
        !           382:     f) Requiring indemnification of licensors and authors of that
        !           383:     material by anyone who conveys the material (or modified versions of
        !           384:     it) with contractual assumptions of liability to the recipient, for
        !           385:     any liability that these contractual assumptions directly impose on
        !           386:     those licensors and authors.
        !           387: 
        !           388:   All other non-permissive additional terms are considered "further
        !           389: restrictions" within the meaning of section 10.  If the Program as you
        !           390: received it, or any part of it, contains a notice stating that it is
        !           391: governed by this License along with a term that is a further
        !           392: restriction, you may remove that term.  If a license document contains
        !           393: a further restriction but permits relicensing or conveying under this
        !           394: License, you may add to a covered work material governed by the terms
        !           395: of that license document, provided that the further restriction does
        !           396: not survive such relicensing or conveying.
        !           397: 
        !           398:   If you add terms to a covered work in accord with this section, you
        !           399: must place, in the relevant source files, a statement of the
        !           400: additional terms that apply to those files, or a notice indicating
        !           401: where to find the applicable terms.
        !           402: 
        !           403:   Additional terms, permissive or non-permissive, may be stated in the
        !           404: form of a separately written license, or stated as exceptions;
        !           405: the above requirements apply either way.
        !           406: 
        !           407:   8. Termination.
        !           408: 
        !           409:   You may not propagate or modify a covered work except as expressly
        !           410: provided under this License.  Any attempt otherwise to propagate or
        !           411: modify it is void, and will automatically terminate your rights under
        !           412: this License (including any patent licenses granted under the third
        !           413: paragraph of section 11).
        !           414: 
        !           415:   However, if you cease all violation of this License, then your
        !           416: license from a particular copyright holder is reinstated (a)
        !           417: provisionally, unless and until the copyright holder explicitly and
        !           418: finally terminates your license, and (b) permanently, if the copyright
        !           419: holder fails to notify you of the violation by some reasonable means
        !           420: prior to 60 days after the cessation.
        !           421: 
        !           422:   Moreover, your license from a particular copyright holder is
        !           423: reinstated permanently if the copyright holder notifies you of the
        !           424: violation by some reasonable means, this is the first time you have
        !           425: received notice of violation of this License (for any work) from that
        !           426: copyright holder, and you cure the violation prior to 30 days after
        !           427: your receipt of the notice.
        !           428: 
        !           429:   Termination of your rights under this section does not terminate the
        !           430: licenses of parties who have received copies or rights from you under
        !           431: this License.  If your rights have been terminated and not permanently
        !           432: reinstated, you do not qualify to receive new licenses for the same
        !           433: material under section 10.
        !           434: 
        !           435:   9. Acceptance Not Required for Having Copies.
        !           436: 
        !           437:   You are not required to accept this License in order to receive or
        !           438: run a copy of the Program.  Ancillary propagation of a covered work
        !           439: occurring solely as a consequence of using peer-to-peer transmission
        !           440: to receive a copy likewise does not require acceptance.  However,
        !           441: nothing other than this License grants you permission to propagate or
        !           442: modify any covered work.  These actions infringe copyright if you do
        !           443: not accept this License.  Therefore, by modifying or propagating a
        !           444: covered work, you indicate your acceptance of this License to do so.
        !           445: 
        !           446:   10. Automatic Licensing of Downstream Recipients.
        !           447: 
        !           448:   Each time you convey a covered work, the recipient automatically
        !           449: receives a license from the original licensors, to run, modify and
        !           450: propagate that work, subject to this License.  You are not responsible
        !           451: for enforcing compliance by third parties with this License.
        !           452: 
        !           453:   An "entity transaction" is a transaction transferring control of an
        !           454: organization, or substantially all assets of one, or subdividing an
        !           455: organization, or merging organizations.  If propagation of a covered
        !           456: work results from an entity transaction, each party to that
        !           457: transaction who receives a copy of the work also receives whatever
        !           458: licenses to the work the party's predecessor in interest had or could
        !           459: give under the previous paragraph, plus a right to possession of the
        !           460: Corresponding Source of the work from the predecessor in interest, if
        !           461: the predecessor has it or can get it with reasonable efforts.
        !           462: 
        !           463:   You may not impose any further restrictions on the exercise of the
        !           464: rights granted or affirmed under this License.  For example, you may
        !           465: not impose a license fee, royalty, or other charge for exercise of
        !           466: rights granted under this License, and you may not initiate litigation
        !           467: (including a cross-claim or counterclaim in a lawsuit) alleging that
        !           468: any patent claim is infringed by making, using, selling, offering for
        !           469: sale, or importing the Program or any portion of it.
        !           470: 
        !           471:   11. Patents.
        !           472: 
        !           473:   A "contributor" is a copyright holder who authorizes use under this
        !           474: License of the Program or a work on which the Program is based.  The
        !           475: work thus licensed is called the contributor's "contributor version".
        !           476: 
        !           477:   A contributor's "essential patent claims" are all patent claims
        !           478: owned or controlled by the contributor, whether already acquired or
        !           479: hereafter acquired, that would be infringed by some manner, permitted
        !           480: by this License, of making, using, or selling its contributor version,
        !           481: but do not include claims that would be infringed only as a
        !           482: consequence of further modification of the contributor version.  For
        !           483: purposes of this definition, "control" includes the right to grant
        !           484: patent sublicenses in a manner consistent with the requirements of
1.1       anton     485: this License.
1.3     ! anton     487:   Each contributor grants you a non-exclusive, worldwide, royalty-free
        !           488: patent license under the contributor's essential patent claims, to
        !           489: make, use, sell, offer for sale, import and otherwise run, modify and
        !           490: propagate the contents of its contributor version.
        !           491: 
        !           492:   In the following three paragraphs, a "patent license" is any express
        !           493: agreement or commitment, however denominated, not to enforce a patent
        !           494: (such as an express permission to practice a patent or covenant not to
        !           495: sue for patent infringement).  To "grant" such a patent license to a
        !           496: party means to make such an agreement or commitment not to enforce a
        !           497: patent against the party.
        !           498: 
        !           499:   If you convey a covered work, knowingly relying on a patent license,
        !           500: and the Corresponding Source of the work is not available for anyone
        !           501: to copy, free of charge and under the terms of this License, through a
        !           502: publicly available network server or other readily accessible means,
        !           503: then you must either (1) cause the Corresponding Source to be so
        !           504: available, or (2) arrange to deprive yourself of the benefit of the
        !           505: patent license for this particular work, or (3) arrange, in a manner
        !           506: consistent with the requirements of this License, to extend the patent
        !           507: license to downstream recipients.  "Knowingly relying" means you have
        !           508: actual knowledge that, but for the patent license, your conveying the
        !           509: covered work in a country, or your recipient's use of the covered work
        !           510: in a country, would infringe one or more identifiable patents in that
        !           511: country that you have reason to believe are valid.
        !           512: 
        !           513:   If, pursuant to or in connection with a single transaction or
        !           514: arrangement, you convey, or propagate by procuring conveyance of, a
        !           515: covered work, and grant a patent license to some of the parties
        !           516: receiving the covered work authorizing them to use, propagate, modify
        !           517: or convey a specific copy of the covered work, then the patent license
        !           518: you grant is automatically extended to all recipients of the covered
        !           519: work and works based on it.
        !           520: 
        !           521:   A patent license is "discriminatory" if it does not include within
        !           522: the scope of its coverage, prohibits the exercise of, or is
        !           523: conditioned on the non-exercise of one or more of the rights that are
        !           524: specifically granted under this License.  You may not convey a covered
        !           525: work if you are a party to an arrangement with a third party that is
        !           526: in the business of distributing software, under which you make payment
        !           527: to the third party based on the extent of your activity of conveying
        !           528: the work, and under which the third party grants, to any of the
        !           529: parties who would receive the covered work from you, a discriminatory
        !           530: patent license (a) in connection with copies of the covered work
        !           531: conveyed by you (or copies made from those copies), or (b) primarily
        !           532: for and in connection with specific products or compilations that
        !           533: contain the covered work, unless you entered into that arrangement,
        !           534: or that patent license was granted, prior to 28 March 2007.
        !           535: 
        !           536:   Nothing in this License shall be construed as excluding or limiting
        !           537: any implied license or other defenses to infringement that may
        !           538: otherwise be available to you under applicable patent law.
        !           539: 
        !           540:   12. No Surrender of Others' Freedom.
        !           541: 
        !           542:   If conditions are imposed on you (whether by court order, agreement or
1.1       anton     543: otherwise) that contradict the conditions of this License, they do not
1.3     ! anton     544: excuse you from the conditions of this License.  If you cannot convey a
        !           545: covered work so as to satisfy simultaneously your obligations under this
        !           546: License and any other pertinent obligations, then as a consequence you may
        !           547: not convey it at all.  For example, if you agree to terms that obligate you
        !           548: to collect a royalty for further conveying from those to whom you convey
        !           549: the Program, the only way you could satisfy both those terms and this
        !           550: License would be to refrain entirely from conveying the Program.
        !           551: 
        !           552:   13. Use with the GNU Affero General Public License.
        !           553: 
        !           554:   Notwithstanding any other provision of this License, you have
        !           555: permission to link or combine any covered work with a work licensed
        !           556: under version 3 of the GNU Affero General Public License into a single
        !           557: combined work, and to convey the resulting work.  The terms of this
        !           558: License will continue to apply to the part which is the covered work,
        !           559: but the special requirements of the GNU Affero General Public License,
        !           560: section 13, concerning interaction through a network will apply to the
        !           561: combination as such.
        !           562: 
        !           563:   14. Revised Versions of this License.
1.1       anton     564: 
1.3     ! anton     565:   The Free Software Foundation may publish revised and/or new versions of
        !           566: the GNU General Public License from time to time.  Such new versions will
1.1       anton     567: be similar in spirit to the present version, but may differ in detail to
                    568: address new problems or concerns.
1.3     ! anton     570:   Each version is given a distinguishing version number.  If the
        !           571: Program specifies that a certain numbered version of the GNU General
        !           572: Public License "or any later version" applies to it, you have the
        !           573: option of following the terms and conditions either of that numbered
        !           574: version or of any later version published by the Free Software
        !           575: Foundation.  If the Program does not specify a version number of the
        !           576: GNU General Public License, you may choose any version ever published
        !           577: by the Free Software Foundation.
        !           578: 
        !           579:   If the Program specifies that a proxy can decide which future
        !           580: versions of the GNU General Public License can be used, that proxy's
        !           581: public statement of acceptance of a version permanently authorizes you
        !           582: to choose that version for the Program.
        !           583: 
        !           584:   Later license versions may give you additional or different
        !           585: permissions.  However, no additional obligations are imposed on any
        !           586: author or copyright holder as a result of your choosing to follow a
        !           587: later version.
        !           588: 
        !           589:   15. Disclaimer of Warranty.
        !           590: 
        !           599: 
        !           600:   16. Limitation of Liability.
        !           601: 
        !           610: SUCH DAMAGES.
        !           611: 
        !           612:   17. Interpretation of Sections 15 and 16.
        !           613: 
        !           614:   If the disclaimer of warranty and limitation of liability provided
        !           615: above cannot be given local legal effect according to their terms,
        !           616: reviewing courts shall apply local law that most closely approximates
        !           617: an absolute waiver of all civil liability in connection with the
        !           618: Program, unless a warranty or assumption of liability accompanies a
        !           619: copy of the Program in return for a fee.
        !           620: 
        !           621:                      END OF TERMS AND CONDITIONS
        !           622: 
        !           623:             How to Apply These Terms to Your New Programs
1.1       anton     624: 
                    625:   If you develop a new program, and you want it to be of the greatest
                    626: possible use to the public, the best way to achieve this is to make it
                    627: free software which everyone can redistribute and change under these terms.
                    629:   To do so, attach the following notices to the program.  It is safest
                    630: to attach them to the start of each source file to most effectively
1.3     ! anton     631: state the exclusion of warranty; and each file should have at least
1.1       anton     632: the "copyright" line and a pointer to where the full notice is found.
                    634:     <one line to give the program's name and a brief idea of what it does.>
1.3     ! anton     635:     Copyright (C) <year>  <name of author>
1.1       anton     636: 
1.3     ! anton     637:     This program is free software: you can redistribute it and/or modify
1.1       anton     638:     it under the terms of the GNU General Public License as published by
1.3     ! anton     639:     the Free Software Foundation, either version 3 of the License, or
1.1       anton     640:     (at your option) any later version.
                    642:     This program is distributed in the hope that it will be useful,
                    643:     but WITHOUT ANY WARRANTY; without even the implied warranty of
                    644:     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
                    645:     GNU General Public License for more details.
                    647:     You should have received a copy of the GNU General Public License
1.3     ! anton     648:     along with this program.  If not, see <>.
1.1       anton     649: 
                    650: Also add information on how to contact you by electronic and paper mail.
1.3     ! anton     652:   If the program does terminal interaction, make it output a short
        !           653: notice like this when it starts in an interactive mode:
1.1       anton     654: 
1.3     ! anton     655:     <program>  Copyright (C) <year>  <name of author>
        !           656:     This program comes with ABSOLUTELY NO WARRANTY; for details type `show w'.
1.1       anton     657:     This is free software, and you are welcome to redistribute it
                    658:     under certain conditions; type `show c' for details.
                    660: The hypothetical commands `show w' and `show c' should show the appropriate
1.3     ! anton     661: parts of the General Public License.  Of course, your program's commands
        !           662: might be different; for a GUI interface, you would use an "about box".
        !           663: 
        !           664:   You should also get your employer (if you work as a programmer) or school,
        !           665: if any, to sign a "copyright disclaimer" for the program, if necessary.
        !           666: For more information on this, and how to apply and follow the GNU GPL, see
        !           667: <>.
        !           668: 
        !           669:   The GNU General Public License does not permit incorporating your program
        !           670: into proprietary programs.  If your program is a subroutine library, you
        !           671: may consider it more useful to permit linking proprietary applications with
        !           672: the library.  If this is what you want to do, use the GNU Lesser General
        !           673: Public License instead of this License.  But first, please read
        !           674: <>.

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