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36 Trademark and License information
10. Ifyou wishtoincorporatepartsoftheProgramintootherfree programswhose distribution conditions aredifferent, write to theauthor to ask for permission. For software which is copyrighted bythe
FreeSoftware Foundation write to the Free Software Foundation;we sometimes makeexceptions for this. Our decision will be guided bythe two goals of preserving the free status of all derivativesof our
freesoftware and of promot ng theshar ng and reuse of software genera y.
NOWARRANTY
11. BECAUSETHEPROGRAMIS LICENSEDFREEOF CHARGE,THEREISNO WARRANTYFORTHEPROGRAM,TOTHE EXTENTPERMITTEDBY APPLICABLELAW. EXCEPTWHEN OTHERWISE
STATEDIN WRITINGTHE COPYRIGHTHOLDERSAND/OROTHERPARTIESPROVIDETHE PROGRAM"AS IS" WITHOUTWARRANTYOF ANY KIND, EITHEREXPRESSEDOR IMPLIED,INCLUDING.BUT
NOTLIMITEDTO THE IMPLIEDWARRANTIESOF MERCHANTABILITYANDFITNESSFORA PARTICULARPURPOSE.THE ENTIRERISK ASTO THEQUALITYANDPERFORMANCEOFTHEPROGRAM
S W TH YOU. SHOULDTHEPROGRAMPROVEDEFECTVE, YOUASSUMETHE COSTOF ALLNECESSARYSERVC NG,REPAR ORCORRECTON.
12. IN NO EVENTUNLESSREQUIREDBYAPPLICABLELAW ORAGREEDTO IN WRITINGWILL ANY COPYRIGHTHOLDER,OR ANYOTHERPARTYWHO MAYMODIFY AND/ORREDISTRIBUTETHE
PROGRAMAS PERMITTEDABOVE,BE LIABLETOYOU FORDAMAGES,INCLUDINGANYGENERAL,SPECIAL INCIDENTALOR CONSEQUENTIALDAMAGESARISINGOUTOFTHE USEOR INABILITY
TOUSETHE PROGRAM(INCLUDINGBUT NOTLIMITEDTOLOSS OF DATAOR DATABEINGRENDEREDINACCURATEOR LOSSESSUSTAINEDBY YOUOR THIRDPARTIESOR A FAILUREOF THE
PROGRAMTO OPERATEWITHANYOTHERPROGRAMS),EVENIF SUCHHOLDEROR OTHERPARTYHAS BEENADVISEDOFTHE POSSIBILITYOF SUCH DAMAGES.
GNU GENERAL PUBLIC LICENSE
Version3,29June2007
Copyright© 2007FreeSoftwareFoundationInc.<http://fsf,org/>
Everyonespermtted to copyand d strbuteverbatm copesot th s censedocument,but changng t s nota owed,
Preamble
TheGNUGeneralPublicLicenseis afree,copyleftlicensefor softwareandotherkindsof works,
Thelicensesfor mostsoftwareandotherpracticalworksaredesignedto takeawayyourfreedomto shareandchangethe works,By contrast,the GNUGeneralPublicLicenseisintendedto Guaranteeyourfreedomto share
andchangeallversionsof a proGram-4omakesureit remainsfreesoftwarefor all its users,We the FreeSoftwareFoundationusefheGNUGeneralPublicLicensefor mostof oursoftware if appliesalsoto anyotherwork
releasedt_iswaybyits authors,_/oucanapply k to yourprograms,too,
Whenwe speakof freesoftware,wearerefernngto freedom,notprice,OurGeneralPublicLicensesaredesignedto makesurethatyouhavethefreedomto distrbutecopiesof freesoftware(andchargefor themif youwish),
thatyoureceivesourcecodeorcangetit if youwant it,that youcanchangethesoftwareorusepiecesof it in newfreeprograms,and thatyouknowyoucando thesethings.
To£rotectyourrightswe needto preventofhersfromdenyingyouthesenghtsor askingyouto surrendertherights.Thereforeyou havecertainresponsibilitiesif youdistributecopiesof thesoftwareor if youmodifyit: respon-
sibilitiesto respectthe freedomof others.
Forexample,if youdistributecopiesof suchaprogram,whethergratisorfor a fee,youmust passonto the recipientsthesamefreedomsthat youreceived.Youmustmakesurethatthey,too,receiveor cangetthesource
code.Andyoumustshowthemthesetermsso theyknowtheirrights.
Developersthat usetheGNUGPLprotectyourrightswithtwosteps:(1)assertcopyrightonthesoftware,and(2)offeryouthis Licensegivingyoulegalpermissionto copy,distributeand/ormodifyit.
Forthedevelopers'andauthors'protection,theGPLclearlyexplainsthat thereis nowarrantyfor thisfreesoftware.Forbothusers'and authors'sake,the GPLrequiresthat modifiedversionsbemarkedaschanged,sothat
theirproblemswill notbeattributederroneouslyto authorsof previousversions.
Somedevicesaredesignedto denyusersaccessto installor runmodifiedversionsofthesoftwareinsidethem,althoughthe manufacturercando so,This isfundamentallyincompatiblewiththeaimof protectingusers'free-
domto changethesoffware,The systematicpatternof suchabuseoccursinthe areaof productsfor individualsto use,whichispreciselywhereit ismost unacceptable.Therefore.wehavedesignedths versionof theGPLto
prohibitthe practicefor thoseproducts.If suchproblemsarisesubstantiallyin otherdomains,westandreadyto extendthis prowsionto thosedomainsinfutureversionsofthe GPL,as neededto protectthe freedomof users.
Finally,everyprogramisthreatenedconstantlyby softwarepatents.Statesshouldnot allowpatentsto restrictdevelopmentand useof softwareon general-purposecomputers,butinthosethatdo, we wishto avoidthe special
dangerthat patentsappliedto afree programcouldmakeit effectivelyproprietary,Topreventthis the GPLassuresthat patentscannotbeusedto renderthe programnomfree,
Theprecsetermsan8 condtons for copyng,dstrbutonand modf cat onfo ow.
TERMSAND CONDITIONS
O,Definitions,
'ThisLicense"refersto version3of theGNUGeneralPublicLicense.
"Copyright"alsomeanscopyrightdikelawsthat applyto otherkindsof works suchas semiconductormasks,
"TheProgram"refersto anycopyrightableworklicensedunderthis License.Eachlicenseeis addressedas "you"."Licensees"and 'recipients"maybeindividualsororganizations.
To'modify"a workmeansfo copyTromor adaptall orpart of the workina fashionrequiringcopyrightpermissionotherthanthemakingof anexactcopy.The resultingworkis calleda"modifiedversion"of theearlierworkor a
work basedon the ear er work.
A "coveredwork"meanseitherthe unmodifiedProgramor a workbasedon theProgram,
To"propagate"a workmeansto doanythingwithit that withoutpermissionwouldmakeyoudirectlyor secondarilyliablefor infringementunderapplicablecopyrightlaw exceptexecutingit onacomputeror modifyinga
privatecope/.Propagationincludescopying,distribution(withor withoutmodification),makingavailableto thepublic,andin somecountriesotheractivitiesaswell
To'convey a work meansanykindof 15ropagationthat enablesotherpartiesto makeor receivecopies.Mereinteractionwitha userthrougha computernetwork,with notransferof a copy,isnot conveying.
Aninteractiveuserinterfacedisplays"AppropriateLegalNotices"to theextentthat it includesaconvenientand prominentlyvisiblefeaturethat (1)displaysanappropriatecopyrightnotice,and (2)tellsthe userthatthereisno
warrantyfor the work(exceptto theextentthatwarrantiesareprovided)that licenseesmayconveythe workunderthis Licenseandhowto view a copyof this License.If theinterfacepresentsa listof usercommandsor op-
tons, suchasa menu,apromnenttom n the st meetsth s crter on.
f, SourceCode.
The"sourcecode" for a workmeansthepreferredform of the workfor makingmodificationsto it."Objectcode" meansanynon-sourceform of awork.
A "StandardInterface"meansaninterfacethateitherisan officialstandarddefinedby arecognizedstandardsbody,or, inthecaseof interfacesspecifiedfor a particularprogramminglanguage,onethat is widelyusedamong
developersworkinginthat language,
The"SystemLibraries"of anexecutableworkinclude , otherthantheworkasawhol_ includedinthenormalformof _nd(b)
seryesonlyto enableuseoftheworkwiththat Ma )lement
it,
those
activities, _otpart ofthework, For
specificallydesignedto
2. BasicPermissions.
that userscan Source.
AllrightsgrantedunderthisLicensearegrantedforthetermof copyrightonthe Program,and areirrevocableprovidedthe statedconditionsaremet.ThisLicenseexplicitlyaffirmsyourunlimitedpermissionto runtheunmodi-
fiedProGram.Theoutputfromrunningacoveredwork is coveredby thisLicenseonlyif theoutput givenits content constitutesacoveredwork.ThisLicenseacknowledgesyournghtsof fairuseorotherequivalentas
pr_rovidedby copyrightlaw.
Youmaymake,runandpropagatecoveredworksthatyoudo notconvey,withoutconditionsso longasyourlicenseotherwiseremainsin force,Youmayconveycoveredworksto othersfor thesolepurposeof havingthem
makemodificationsexclusivel_for you,or provideyouwithfacilitiesfor runningthoseworks,providedthat youcomplywiththetermsof thisLicenseinconveyingallmaterMfor whichyoudo not controicopyright,T_osethus
makingor runningthe coveredworksfor youmustdo soexclusivelyonyourbehalf,underyourdirectionandcontrol,ontermsthat prohibitthemfrom makinganycopiesof yourcopyrightedmaterialoutsidetheirrelationship
withyou.
Conveyingunderanyothercircumstancesis permittedsolelyundertheconditionsstatedbelow.Sublicensingis notallowed;section10makesit unnecessary.
3. ProtectingUsers' LegalRights FromAnti-CircumventionLaw,
Nocoveredworkshallbedeemedpart of aneffectivetechnologicalmeasureunderanyapplicablelawfulfillingobligationsunderarticle11of the WlPOcopyrighttreatyadoptedon 20December1996,orsimilarlawsprohibiting
orrestrictingcircumventionof suchmeasures,
Whenyou conveya coveredwork youwaiveanylegalpowerto forbid circumventionof technologicalmeasuresto theextentsuchcircumventionis effectedby exercisingrightsunderthis Licensewithrespectto the covered
work,andyoud scam any ntentonto m t operaton ormodf cat onof the workasameansof enforcng,agenst theworks users,yourorth rdpartes ega r ghtsto forb8 c mumventonof technoogca measures.
4. ConveyingVerbatimCopies.
Youmayconveyverbatimcopiesof theProgram'ssourcecodeasyoureceiveit in anymedium providedthat youconspicuouslyandappropriatelypublishoneachcopyan appropriatecopyrightnotice keepintactall notices
statingthatthis Licenseandanynon-permissivetermsaddedinaccordwithsectionTapplyto thecode;keepintactall noticesoftheabsenceof anywarranty;andgiveall recipientsacopyof:IbisLicensealongwiththe
r_.__(ougr_.charge anypriceornopricefor eachcopythatyou convey,andyoumay offersupportor warrantyprotectionfore fee,
5. ConveyingModifiedSourceVersions.
orthe modificationsto )reduceit fromtheProgramin theformof sourcecode underthetermsof section4 providedthatyoualsomeetall of theseconditions:
a reeventdate.
uirementin section4 to "keepintact allnotices",
7additionalterms,to thewholeofthe
receivedit.
Ifthe workhas
is[o terma largerprogram inoron avolume
ora storageor ols_nou_lonn copyrightarenotusedto limittheaccessdr legalr ghtsof thecomp atons usersbeyondwhatthe ndv due workspermt, nc u_
sionof a coveredworkin an oftheaggregate.
6. ConveyingNon-SourceForms.
Youmayconveyacoveredworkin objectcodeformunderthetermsof sections4and5 12rovidedthat youalsoconveythemachine-readableCorrespondingSourceunderthetermsof thisLicense.inone oftheseways:
a)Oonveytheobjectcode in,or embodiedin,a physicalproduct(includingaphysicaldistnbutionmedium),accompaniedby the CorrespondingSourcefixedon adurablephysicalmediumcustomarilyusedfor softwareinter-
change.
b)Oonveytheobjectcode in,or embodiedin,a physicalproduct(includingaphysicaldistributionmedium),accompaniedby a writtenoffer,validfor at leastthreeyearsandvalidfor as long asyouofferspareparts orcustomer
supportforthat productmodel,to giveanyonewhopossessesthe objectcodeeither(1)acopyof the CorrespondingSourcefor allthe softwareinthe productfhat is coveredby thisLicense,on a durablephysicalmedium
customarilyusedfor softwareinterchange,for a pricenomorethanyourreasonablecost of physicallyperformingthisconveyingof source,or(2) accessto copytheCorrespondingSourcefroma networkserverat nocharge.
c)Conveyindividualcopiesof theobjectcodewitha copyof thewrittenofferto providethe CorrespondingSource.Thisalternativeisallowedonlyoccasionallyand noncommerciallyandonly ifyou receivedthe objectcode
withsuchanoffer,in accordwithsubsection6b,
d)Conveythe objectcode by offeringaccessfromadesignatedplace(gratisorfor acharge)and offerequivalentaccessto theCorrespondingSourceinthesamewaythroughthesameplaceat nofurthercharge,Youneed
notrequirerecipientsto copytheCorrespondingSourcealongwithteeobjectcode,Iftheplaceto copytheobjectcode isa networkserver,theCorrespondingSourcemaybeona differentserver(2peratedb_youora third
party)thatsupportsequivalentcopyingfacilities,providedyoumaintaincleardirectionsnextto theobjectcode sayingwhereto findtheCorrespondingSource.Regardlessof whatserverhoststhe L,orrespondingSource,you
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