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not the orig g inal, so that any y p p roblems introduced by y others will not reflect on the orig g i-
nal authors' rep p utations.
Finally y , any y free p p rog g ram is threatened constantly y by y software p p atents. We wish to avoid
the dang g er that redistributors of a free p p rog g ram will individually y obtain p p atent licenses,
in effect making g the p p rog g ram p p rop p rietary y . To p p revent this, we have made it clear that any y
p p atent must be licensed for every y one's free use or not licensed at all.
The p p recise terms and conditions for copy pying g , distribution and
modification follow.
TERMS AND CONDITIONS FOR COPYING, DISTRIBUTION AND MODIFICATION
0. This License app pplies to any y p p rog g ram or other work which contains a notice p p laced by y
the copy pyrig g ht holder say y ing g it may y be distributed under the terms of this General Public
License. The „Prog g ram", below, refers to any y such p p rog g ram or work, and a „work based
on the Prog g ram" means either the Prog g ram or any y derivative work under copy pyrig g ht law:
that is to say y , a work containing g the Prog g ram or a p p ortion of it, either verbatim or with
modifications and/or translated into another lang g uag g e. (Hereinafter, translation is inclu-
ded without limitation in the term „modification".) Each licensee is addressed as „y y ou".
Activities other than copy pying g , distribution and modification are not covered by y this
License; they y are outside its scop p e. The act of running g the Prog g ram is not restricted, and
the outp p ut from the Prog g ram is covered only y if its contents constitute a work based on
the Prog g ram (indep p endent of having g been made by y running g the Prog g ram). Whether that
is true dep p ends on what the Prog g ram does.
1. You may y copy py and distribute verbatim cop p ies of the Prog g ram's source code as y y ou
receive it, in any y medium, p p rovided that y y ou consp p icuously y and app
each copy py an app pprop p riate copy pyrig g ht notice and disclaimer of warranty y ; keep p intact all the
notices that refer to this License and to the absence of any y warranty y ; and g g ive any y other
recip p ients of the Prog g ram a copy py of this License along g with the Prog g ram.
You may y charg g e a fee for the p p hy y sical act of transferring g a copy py, and y y ou may y at y y our
op p tion offer warranty y p p rotection in exchang g e for a fee.
2. You may y modify y y y our copy py or cop p ies of the Prog g ram or any y p p ortion of it, thus forming g
a work based on the Prog g ram, and copy py and distribute such modifications or work under
the terms of Section 1 above, p p rovided that y y ou also meet all of these conditions:
a) You must cause the modified files to carry y p p rominent notices stating g that y y ou chan-
g g ed the files and the date of any y chang g e.
b) You must cause any y work that y y ou distribute or p p ublish, that in whole or in p p art con-
tains or is derived from the Prog g ram or any y p p art thereof, to be licensed as a whole at no
charg g e to all third p p arties under the terms of this License.
c) If the modified p p rog g ram normally y reads commands interactively y when run, y y ou
must cause it, when started running g for such interactive use in the most ordinary y way y ,
to p p rint or disp p lay y an announcement including g an app
notice that there is no warranty y (or else, say y ing g that y y ou p p rovide a warranty y ) and that
users may y redistribute the p p rog g ram under these conditions, and telling g the user how to
GNU GENERAL PUBLIC LICENSE
pprop p riately y p p ublish on
pprop p riate copy pyrig g ht notice and a
DE
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