User's Manual

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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modiedlestocarryprominentnotices
statingthatyouchangedtheles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modied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.)