User's Manual

142
running the Program). Whether that is true depends on what
the Program does.
1.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 appropriate copyright notice and disclaimer of warranty;
keep intact all the notices that refer to this License and to the
absenceofanywarranty;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.
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modications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causeanyworkthatyoudistributeorpublish,that
in whole or in part contains or is derived from 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identiablesectionsofthatworkarenotderivedfromthe