copying2.txt

操纵DBASEIII文件的程序

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

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 an 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 `Frob' (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!