there is no warranty for this free software.
If the software is modified by someone else
and passed on, we want its recipients to
know that what they have is not the original,
so that any problems introduced by others
will not reflect on the original author's
reputations.
Finally, any free program is threatened cons-
tantly by software patents. We wish to avoid
the danger that redistributors of a free pro-
gram will individually obtain patent licenses,
in effect making the program proprietary. To
prevent this, we have made it clear that any
patent must be licensed for everyone's free
use or not licensed at all.
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