User manual
XCSoar User Manual
recipients to know that what they have is not the original, 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 redistributors of a free program will
individually obtain patent licenses, in effect making the program propri-
etary. To prevent this, we have made it clear that any patent must be
licensed for everyone’s free use or not licensed at all.
The precise terms and conditions for copying, distribution and modifica-
tion follow.
GNU GENERAL PUBLIC LICENSE
TERMS AND CONDITIONS FOR COPYING, DISTRIBUTION AND
MODIFICATION
1. This License applies to any program or other work which con-
tains a notice placed by the copyright holder saying it may be dis-
tributed under the terms of this General Public License. The ”Pro-
gram”, below, refers to any such program or work, and a ”work
based on the Program” means either the Program or any deriva-
tive work under copyright law: that is to say, a work containing the
Program or a portion of it, either verbatim or with modifications
and/or translated into another language. (Hereinafter, translation
is included without limitation in the term ”modification”.) Each
licensee is addressed as ”you”.
Activities other than copying, distribution and modification are
not covered by this License; they are outside its scope. The act
of running the Program is not restricted, and the output from the
Program is covered only if its contents constitute a work based
on the Program (independent of having been made by running the
Program). Whether that is true depends on what the Program does.
2. You may copy and distribute verbatim copies of the Program’s
source code as you receive it, in any medium, provided that you
conspicuously and appropriately publish on each copy an appro-
priate copyright notice and disclaimer of warranty; keep intact all
the notices that refer to this License and to the absence of any war-
ranty; and give any other recipients of the Program a copy of this
License along with the Program.
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.
3. You may modify your copy or copies of the Program or any por-
tion 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:
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