User's Manual

120
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.)