COPYING.LIB

                 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.

  GNU LIBRARY GENERAL PUBLIC LICENSE 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:

  a) The modified work must itself be a software library.

  b) You must cause the files modified to carry prominent notices stating
     that you changed the files and the date of any change.

  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.

  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:

  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.) 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.

  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.

  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:

  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.

  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

 Appendix: How to Apply These Terms to Your New Libraries If you develop a
 new library, and you want it to be of the greatest possible use to the
 public, we recommend making it free software that everyone can redistribute
 and change. You can do so by permitting redistribution under these terms
 (or, alternatively, under the terms of the ordinary General Public
 License).

 To apply these terms, attach the following notices to the library.  It is
 safest to attach them to the start of each source file to most effectively
 convey the exclusion of warranty; and each file should have at least the
 "copyright" line and a pointer to where the full notice is found.

 <one line to give the library's name and a brief idea of what it does.>
 Copyright (C) <year> <name of author>

 This library is free software; you can redistribute it and/or modify it
 under the terms of the GNU Library General Public License as published by
 the Free Software Foundation; either version 2 of the License, or (at your
 option) any later version.

 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.  See the GNU Library General Public
 License for more details.  You should have received a copy of the GNU
 Library General Public License along with this library; if not, write to
 the Free Software Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.

 Also add information on how to contact you by electronic and paper mail. 
 You should also get your employer (if you work as a programmer) or your
 school, if any, to sign a "copyright disclaimer" for the library, if
 necessary. Here is a sample; alter the names:

 Yoyodyne, Inc., hereby disclaims all copyright interest in the library
 rob' (a library for tweaking knobs) written by James Random Hacker.

 <signature of Ty Coon>, 1 April 1990

 Ty Coon, President of Vice

 That's all there is to it!