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Appendix
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 Program or any portion of it, thus forming a work based on the
Program, 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) You must cause the modified files to carry prominent notices stating that you changed the files and the
date of any change.
b) You must caus e any work that you di stribute or publish , that in w hole or in p art conta ins or is de rived fro m
the Program or any part thereof, to be licensed as a whole at no charge to all third parties under the terms
of this License.
c) If the modified program normally reads commands interactively when run, you must cause it, when started
running for such interactive use in the most ordinary way, to print or display an announcement including
an appropriate copyright notice and a notice that there is no warranty (or else, saying that you provide a
warranty) and that users may redistribute the program under these conditions, and telling the user how to
view a copy of this License. (Exception: if the Program itself is interactive but does not normally print such
an announcement, your work based on the Program is not required to print an announcement.) These
requirements apply to the modified work as a whole. If identifiable sections of that work are not derived
from the Program, 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 Program, 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 Program. In
addition, mere aggregation of another work not based on the Program with the Program (or with a work
based on the Program) on a volume of a storage or distribution medium does not bring the other work
under the scope of this License.
3. You may copy and distribute the Program (or a work based on it, under Section 2) in object code or executable
form under the terms of Sections 1 and 2 above provided that you also do one of the following:
a) 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; or,
b) Accompany it with a written offer, valid for at least three years, to give any third party, for a charge no more
than your cost of physically performing source distribution, a complete machine-readable copy of the
corresponding source code, to be distributed under the terms of Sections 1 and 2 above on a medium
customarily used for software interchange; or, it linking proprietary applications with the library. If this is
what you want to do, use the GNU Lesser General Public License instead of this License.
c) Accompany it with the information you received as to the offer to distribute corresponding source code.
(This alternative is allowed only for noncommercial distribution and only if you received the program in
object code or executable form with such an offer, in accord with Subsection b above.) The source code for
a work means the preferred form of the work for making modifications to it. For an executable work,
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 executable. 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. If
distribution of executable or 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 counts as distribution of the
source code, even though third parties are not compelled to copy the source along with the object code.
4. You may not copy, modify, sublicense, or distribute the Program except as expressly provided under this
License. Any attempt otherwise to copy, modify, sublicense or distribute the Program 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.
5. 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 Program or its derivative works. These actions are prohibited by law if
you do not accept this License. Therefore, by modifying or distributing the Program (or any work based on the
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