User's Manual

62
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,
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 modications to it. For an executable
work, complete source code means all the source code
for all modules it contains, plus any associated interface
denition les, 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.