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.)
 Theserequirementsapplyto themodiedworkasa whole.If
identiablesectionsofthatworkarenotderivedfromtheProgram,
andcanbereasonablyconsideredindependentandseparateworks
inthemselves,thenthisLicense,anditsterms,donotapplytothose
sectionswhenyoudistributethemasseparateworks.Butwhen
youdistributethesamesectionsaspartofawholewhichisawork
basedontheProgram,thedistributionofthewholemustbeonthe
termsofthisLicense,whosepermissionsforotherlicenseesextend
totheentirewhole,andthustoeachandeverypartregardlessof
who wrote it.
 Thus,itisnottheintentofthissectiontoclaimrightsorcontestyour
rightstoworkwrittenentirelybyyou;rather,theintentistoexercise
therighttocontrolthedistributionofderivativeorcollectiveworks
basedontheProgram.