comparison toolboxes/FullBNT-1.0.7/docs/license.gpl @ 0:e9a9cd732c1e tip

first hg version after svn

+This library is free software; you can redistribute it and/or
+modify it under the terms of the GNU Library General Public
+License version 2 as published by the Free Software Foundation.
+
+This library is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. 
+
+GNU Library General Public License
+
+----------------------------------------------------------------------------
+
+Table of Contents
+
+   * GNU LIBRARY GENERAL PUBLIC LICENSE
+        o Preamble
+        o TERMS AND CONDITIONS FOR COPYING, DISTRIBUTION AND MODIFICATION
+
+----------------------------------------------------------------------------
+
+GNU LIBRARY GENERAL PUBLIC LICENSE
+
+Version 2, June 1991
+
+Copyright (C) 1991 Free Software Foundation, Inc.
+675 Mass Ave, Cambridge, MA 02139, USA
+Everyone is permitted to copy and distribute verbatim copies
+of this license document, but changing it is not allowed.
+
+[This is the first released version of the library GPL.  It is
+ numbered 2 because it goes with version 2 of the ordinary GPL.]
+
+Preamble
+
+The licenses for most software are designed to take away your freedom to
+share and change it. By contrast, the GNU General Public Licenses are
+intended to guarantee your freedom to share and change free software--to
+make sure the software is free for all its users.
+
+This license, the Library General Public License, applies to some specially
+designated Free Software Foundation software, and to any other libraries
+whose authors decide to use it. You can use it for your libraries, too.
+
+When we speak of free software, we are referring to freedom, not price. Our
+General Public Licenses are designed to make sure that you have the freedom
+to distribute copies of free software (and charge for this service if you
+wish), that you receive source code or can get it if you want it, that you
+can change the software or use pieces of it in new free programs; and that
+you know you can do these things.
+
+To protect your rights, we need to make restrictions that forbid anyone to
+deny you these rights or to ask you to surrender the rights. These
+restrictions translate to certain responsibilities for you if you distribute
+copies of the library, or if you modify it.
+
+For example, if you distribute copies of the library, whether gratis or for
+a fee, you must give the recipients all the rights that we gave you. You
+must make sure that they, too, receive or can get the source code. If you
+link a program with the library, you must provide complete object files to
+the recipients so that they can relink them with the library, after making
+changes to the library and recompiling it. And you must show them these
+terms so they know their rights.
+
+Our method of protecting your rights has two steps: (1) copyright the
+library, and (2) offer you this license which gives you legal permission to
+copy, distribute and/or modify the library.
+
+Also, for each distributor's protection, we want to make certain that
+everyone understands that there is no warranty for this free library. If the
+library is modified by someone else and passed on, we want its recipients to
+know that what they have is not the original version, so that any problems
+introduced by others will not reflect on the original authors' reputations.
+
+Finally, any free program is threatened constantly by software patents. We
+wish to avoid the danger that companies distributing free software will
+individually obtain patent licenses, thus in effect transforming the program
+into proprietary software. To prevent this, we have made it clear that any
+patent must be licensed for everyone's free use or not licensed at all.
+
+Most GNU software, including some libraries, is covered by the ordinary GNU
+General Public License, which was designed for utility programs. This
+license, the GNU Library General Public License, applies to certain
+designated libraries. This license is quite different from the ordinary one;
+be sure to read it in full, and don't assume that anything in it is the same
+as in the ordinary license.
+
+The reason we have a separate public license for some libraries is that they
+blur the distinction we usually make between modifying or adding to a
+program and simply using it. Linking a program with a library, without
+changing the library, is in some sense simply using the library, and is
+analogous to running a utility program or application program. However, in a
+textual and legal sense, the linked executable is a combined work, a
+derivative of the original library, and the ordinary General Public License
+treats it as such.
+
+Because of this blurred distinction, using the ordinary General Public
+License for libraries did not effectively promote software sharing, because
+most developers did not use the libraries. We concluded that weaker
+conditions might promote sharing better.
+
+However, unrestricted linking of non-free programs would deprive the users
+of those programs of all benefit from the free status of the libraries
+themselves. This Library General Public License is intended to permit
+developers of non-free programs to use free libraries, while preserving your
+freedom as a user of such programs to change the free libraries that are
+incorporated in them. (We have not seen how to achieve this as regards
+changes in header files, but we have achieved it as regards changes in the
+actual functions of the Library.) The hope is that this will lead to faster
+development of free libraries.
+
+The precise terms and conditions for copying, distribution and modification
+follow. Pay close attention to the difference between a "work based on the
+library" and a "work that uses the library". The former contains code
+derived from the library, while the latter only works together with the
+library.
+
+Note that it is possible for a library to be covered by the ordinary General
+Public License rather than by this special one.
+
+TERMS AND CONDITIONS FOR COPYING, DISTRIBUTION AND MODIFICATION
+
+0. This License Agreement applies to any software library which contains a
+notice placed by the copyright holder or other authorized party saying it
+may be distributed under the terms of this Library General Public License
+(also called "this License"). Each licensee is addressed as "you".
+
+A "library" means a collection of software functions and/or data prepared so
+as to be conveniently linked with application programs (which use some of
+those functions and data) to form executables.
+
+The "Library", below, refers to any such software library or work which has
+been distributed under these terms. A "work based on the Library" means
+either the Library or any derivative work under copyright law: that is to
+say, a work containing the Library or a portion of it, either verbatim or
+with modifications and/or translated straightforwardly into another
+language. (Hereinafter, translation is included without limitation in the
+term "modification".)
+
+"Source code" for a work means the preferred form of the work for making
+modifications to it. For a library, complete source code means all the
+source code for all modules it contains, plus any associated interface
+definition files, plus the scripts used to control compilation and
+installation of the library.
+
+Activities other than copying, distribution and modification are not covered
+by this License; they are outside its scope. The act of running a program
+using the Library is not restricted, and output from such a program is
+covered only if its contents constitute a work based on the Library
+(independent of the use of the Library in a tool for writing it). Whether
+that is true depends on what the Library does and what the program that uses
+the Library does.
+
+1. You may copy and distribute verbatim copies of the Library's complete
+source code as you receive it, in any medium, provided that you
+conspicuously and appropriately publish on each copy an appropriate
+copyright notice and disclaimer of warranty; keep intact all the notices
+that refer to this License and to the absence of any warranty; and
+distribute a copy of this License along with the Library.
+
+You may charge a fee for the physical act of transferring a copy, and you
+may at your option offer warranty protection in exchange for a fee.
+
+2. You may modify your copy or copies of the Library or any portion of it,
+thus forming a work based on the Library, and copy and distribute such
+modifications or work under the terms of Section 1 above, provided that you
+also meet all of these conditions:
+
+        o a) The modified work must itself be a software library.
+
+        o b) You must cause the files modified to carry prominent notices
+          stating that you changed the files and the date of any change.
+
+        o c) You must cause the whole of the work to be licensed at no
+          charge to all third parties under the terms of this License.
+
+        o d) If a facility in the modified Library refers to a function or a
+          table of data to be supplied by an application program that uses
+          the facility, other than as an argument passed when the facility
+          is invoked, then you must make a good faith effort to ensure that,
+          in the event an application does not supply such function or
+          table, the facility still operates, and performs whatever part of
+          its purpose remains meaningful.
+
+          (For example, a function in a library to compute square roots has
+          a purpose that is entirely well-defined independent of the
+          application. Therefore, Subsection 2d requires that any
+          application-supplied function or table used by this function must
+          be optional: if the application does not supply it, the square
+          root function must still compute square roots.)
+
+These requirements apply to the modified work as a whole. If identifiable
+sections of that work are not derived from the Library, and can be
+reasonably considered independent and separate works in themselves, then
+this License, and its terms, do not apply to those sections when you
+distribute them as separate works. But when you distribute the same sections
+as part of a whole which is a work based on the Library, the distribution of
+the whole must be on the terms of this License, whose permissions for other
+licensees extend to the entire whole, and thus to each and every part
+regardless of who wrote it.
+
+Thus, it is not the intent of this section to claim rights or contest your
+rights to work written entirely by you; rather, the intent is to exercise
+the right to control the distribution of derivative or collective works
+based on the Library.
+
+In addition, mere aggregation of another work not based on the Library with
+the Library (or with a work based on the Library) on a volume of a storage
+or distribution medium does not bring the other work under the scope of this
+License.
+
+3. You may opt to apply the terms of the ordinary GNU General Public License
+instead of this License to a given copy of the Library. To do this, you must
+alter all the notices that refer to this License, so that they refer to the
+ordinary GNU General Public License, version 2, instead of to this License.
+(If a newer version than version 2 of the ordinary GNU General Public
+License has appeared, then you can specify that version instead if you
+wish.) Do not make any other change in these notices.
+
+Once this change is made in a given copy, it is irreversible for that copy,
+so the ordinary GNU General Public License applies to all subsequent copies
+and derivative works made from that copy.
+
+This option is useful when you wish to copy part of the code of the Library
+into a program that is not a library.
+
+4. You may copy and distribute the Library (or a portion or derivative of
+it, under Section 2) in object code or executable form under the terms of
+Sections 1 and 2 above provided that you accompany it with the complete
+corresponding machine-readable source code, which must be distributed under
+the terms of Sections 1 and 2 above on a medium customarily used for
+software interchange.
+
+If distribution of object code is made by offering access to copy from a
+designated place, then offering equivalent access to copy the source code
+from the same place satisfies the requirement to distribute the source code,
+even though third parties are not compelled to copy the source along with
+the object code.
+
+5. A program that contains no derivative of any portion of the Library, but
+is designed to work with the Library by being compiled or linked with it, is
+called a "work that uses the Library". Such a work, in isolation, is not a
+derivative work of the Library, and therefore falls outside the scope of
+this License.
+
+However, linking a "work that uses the Library" with the Library creates an
+executable that is a derivative of the Library (because it contains portions
+of the Library), rather than a "work that uses the library". The executable
+is therefore covered by this License. Section 6 states terms for
+distribution of such executables.
+
+When a "work that uses the Library" uses material from a header file that is
+part of the Library, the object code for the work may be a derivative work
+of the Library even though the source code is not. Whether this is true is
+especially significant if the work can be linked without the Library, or if
+the work is itself a library. The threshold for this to be true is not
+precisely defined by law.
+
+If such an object file uses only numerical parameters, data structure
+layouts and accessors, and small macros and small inline functions (ten
+lines or less in length), then the use of the object file is unrestricted,
+regardless of whether it is legally a derivative work. (Executables
+containing this object code plus portions of the Library will still fall
+under Section 6.)
+
+Otherwise, if the work is a derivative of the Library, you may distribute
+the object code for the work under the terms of Section 6. Any executables
+containing that work also fall under Section 6, whether or not they are
+linked directly with the Library itself.
+
+6. As an exception to the Sections above, you may also compile or link a
+"work that uses the Library" with the Library to produce a work containing
+portions of the Library, and distribute that work under terms of your
+choice, provided that the terms permit modification of the work for the
+customer's own use and reverse engineering for debugging such modifications.
+
+You must give prominent notice with each copy of the work that the Library
+is used in it and that the Library and its use are covered by this License.
+You must supply a copy of this License. If the work during execution
+displays copyright notices, you must include the copyright notice for the
+Library among them, as well as a reference directing the user to the copy of
+this License. Also, you must do one of these things:
+
+        o a) Accompany the work with the complete corresponding
+          machine-readable source code for the Library including whatever
+          changes were used in the work (which must be distributed under
+          Sections 1 and 2 above); and, if the work is an executable linked
+          with the Library, with the complete machine-readable "work that
+          uses the Library", as object code and/or source code, so that the
+          user can modify the Library and then relink to produce a modified
+          executable containing the modified Library. (It is understood that
+          the user who changes the contents of definitions files in the
+          Library will not necessarily be able to recompile the application
+          to use the modified definitions.)
+
+        o b) Accompany the work with a written offer, valid for at least
+          three years, to give the same user the materials specified in
+          Subsection 6a, above, for a charge no more than the cost of
+          performing this distribution.
+
+        o c) If distribution of the work is made by offering access to copy
+          from a designated place, offer equivalent access to copy the above
+          specified materials from the same place.
+
+        o d) Verify that the user has already received a copy of these
+          materials or that you have already sent this user a copy.
+
+For an executable, the required form of the "work that uses the Library"
+must include any data and utility programs needed for reproducing the
+executable from it. However, as a special exception, the source code
+distributed need not include anything that is normally distributed (in
+either source or binary form) with the major components (compiler, kernel,
+and so on) of the operating system on which the executable runs, unless that
+component itself accompanies the executable.
+
+It may happen that this requirement contradicts the license restrictions of
+other proprietary libraries that do not normally accompany the operating
+system. Such a contradiction means you cannot use both them and the Library
+together in an executable that you distribute.
+
+7. You may place library facilities that are a work based on the Library
+side-by-side in a single library together with other library facilities not
+covered by this License, and distribute such a combined library, provided
+that the separate distribution of the work based on the Library and of the
+other library facilities is otherwise permitted, and provided that you do
+these two things:
+
+        o a) Accompany the combined library with a copy of the same work
+          based on the Library, uncombined with any other library
+          facilities. This must be distributed under the terms of the
+          Sections above.
+
+        o b) Give prominent notice with the combined library of the fact
+          that part of it is a work based on the Library, and explaining
+          where to find the accompanying uncombined form of the same work.
+
+8. You may not copy, modify, sublicense, link with, or distribute the
+Library except as expressly provided under this License. Any attempt
+otherwise to copy, modify, sublicense, link with, or distribute the Library
+is void, and will automatically terminate your rights under this License.
+However, parties who have received copies, or rights, from you under this
+License will not have their licenses terminated so long as such parties
+remain in full compliance.
+
+9. You are not required to accept this License, since you have not signed
+it. However, nothing else grants you permission to modify or distribute the
+Library or its derivative works. These actions are prohibited by law if you
+do not accept this License. Therefore, by modifying or distributing the
+Library (or any work based on the Library), you indicate your acceptance of
+this License to do so, and all its terms and conditions for copying,
+distributing or modifying the Library or works based on it.
+
+10. Each time you redistribute the Library (or any work based on the
+Library), the recipient automatically receives a license from the original
+licensor to copy, distribute, link with or modify the Library subject to
+these terms and conditions. You may not impose any further restrictions on
+the recipients' exercise of the rights granted herein. You are not
+responsible for enforcing compliance by third parties to this License.
+
+11. If, as a consequence of a court judgment or allegation of patent
+infringement or for any other reason (not limited to patent issues),
+conditions are imposed on you (whether by court order, agreement or
+otherwise) that contradict the conditions of this License, they do not
+excuse you from the conditions of this License. If you cannot distribute so
+as to satisfy simultaneously your obligations under this License and any
+other pertinent obligations, then as a consequence you may not distribute
+the Library at all. For example, if a patent license would not permit
+royalty-free redistribution of the Library by all those who receive copies
+directly or indirectly through you, then the only way you could satisfy both
+it and this License would be to refrain entirely from distribution of the
+Library.
+
+If any portion of this section is held invalid or unenforceable under any
+particular circumstance, the balance of the section is intended to apply,
+and the section as a whole is intended to apply in other circumstances.
+
+It is not the purpose of this section to induce you to infringe any patents
+or other property right claims or to contest validity of any such claims;
+this section has the sole purpose of protecting the integrity of the free
+software distribution system which is implemented by public license
+practices. Many people have made generous contributions to the wide range of
+software distributed through that system in reliance on consistent
+application of that system; it is up to the author/donor to decide if he or
+she is willing to distribute software through any other system and a
+licensee cannot impose that choice.
+
+This section is intended to make thoroughly clear what is believed to be a
+consequence of the rest of this License.
+
+12. If the distribution and/or use of the Library is restricted in certain
+countries either by patents or by copyrighted interfaces, the original
+copyright holder who places the Library under this License may add an
+explicit geographical distribution limitation excluding those countries, so
+that distribution is permitted only in or among countries not thus excluded.
+In such case, this License incorporates the limitation as if written in the
+body of this License.
+
+13. The Free Software Foundation may publish revised and/or new versions of
+the Library General Public License from time to time. Such new versions will
+be similar in spirit to the present version, but may differ in detail to
+address new problems or concerns.
+
+Each version is given a distinguishing version number. If the Library
+specifies a version number of this License which applies to it and "any
+later version", you have the option of following the terms and conditions
+either of that version or of any later version published by the Free
+Software Foundation. If the Library does not specify a license version
+number, you may choose any version ever published by the Free Software
+Foundation.
+
+14. If you wish to incorporate parts of the Library into other free programs
+whose distribution conditions are incompatible with these, write to the
+author to ask for permission. For software which is copyrighted by the Free
+Software Foundation, write to the Free Software Foundation; we sometimes
+make exceptions for this. Our decision will be guided by the two goals of
+preserving the free status of all derivatives of our free software and of
+promoting the sharing and reuse of software generally.
+
+NO WARRANTY
+
+15. BECAUSE THE LIBRARY IS LICENSED FREE OF CHARGE, THERE IS NO WARRANTY FOR
+THE LIBRARY, TO THE EXTENT PERMITTED BY APPLICABLE LAW. EXCEPT WHEN
+OTHERWISE STATED IN WRITING THE COPYRIGHT HOLDERS AND/OR OTHER PARTIES
+PROVIDE THE LIBRARY "AS IS" WITHOUT WARRANTY OF ANY KIND, EITHER EXPRESSED
+OR IMPLIED, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
+MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. THE ENTIRE RISK AS TO
+THE QUALITY AND PERFORMANCE OF THE LIBRARY IS WITH YOU. SHOULD THE LIBRARY
+PROVE DEFECTIVE, YOU ASSUME THE COST OF ALL NECESSARY SERVICING, REPAIR OR
+CORRECTION.
+
+16. IN NO EVENT UNLESS REQUIRED BY APPLICABLE LAW OR AGREED TO IN WRITING
+WILL ANY COPYRIGHT HOLDER, OR ANY OTHER PARTY WHO MAY MODIFY AND/OR
+REDISTRIBUTE THE LIBRARY AS PERMITTED ABOVE, BE LIABLE TO YOU FOR DAMAGES,
+INCLUDING ANY GENERAL, SPECIAL, INCIDENTAL OR CONSEQUENTIAL DAMAGES ARISING
+OUT OF THE USE OR INABILITY TO USE THE LIBRARY (INCLUDING BUT NOT LIMITED TO
+LOSS OF DATA OR DATA BEING RENDERED INACCURATE OR LOSSES SUSTAINED BY YOU OR
+THIRD PARTIES OR A FAILURE OF THE LIBRARY TO OPERATE WITH ANY OTHER
+SOFTWARE), EVEN IF SUCH HOLDER OR OTHER PARTY HAS BEEN ADVISED OF THE
+POSSIBILITY OF SUCH DAMAGES.
+
+END OF TERMS AND CONDITIONS
+
+This library is free software; you can redistribute it and/or
+modify it under the terms of the GNU Library General Public
+License version 2 as published by the Free Software Foundation.
+
+This library is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. 
+
+