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GNUGENERALPUBLICLICENSE
Version3,29June2007
Copyright (C)2007FreeSoftwareFoundation,Inc.<https://fsf.org/>
Everyoneispermittedtocopyanddistributeverbatimcopies
ofthislicensedocument,butchangingitisnot allowed.
Preamble
TheGNUGeneralPublicLicenseisafree,copyleftlicensefor
softwareandotherkindsofworks.
Thelicensesformostsoftwareandotherpracticalworksaredesigned
totakeawayyourfreedomtoshareandchangethe works.Bycontrast,
theGNUGeneralPublicLicenseisintendedtoguaranteeyourfreedomto
shareandchangeallversionsofaprogram--tomakesureitremainsfree
softwareforallitsusers.We,theFreeSoftwareFoundation,usethe
GNUGeneralPublicLicenseformostofoursoftware;itappliesalsoto
anyotherworkreleasedthiswaybyits authors.Youcanapplyitto
yourprograms, too.
Whenwespeakoffreesoftware,wearereferringtofreedom,not
price.OurGeneralPublicLicensesaredesignedtomakesurethatyou
havethefreedomtodistributecopiesoffreesoftware (andchargefor
themifyouwish),thatyoureceivesourcecodeorcangetitifyou
wantit,thatyoucanchangethesoftwareorusepiecesofitinnew
freeprograms,andthatyouknowyoucandothese things.
Toprotectyourrights,weneedtopreventothersfromdenyingyou
theserightsoraskingyoutosurrendertherights.Therefore,youhave
certainresponsibilitiesifyoudistributecopiesofthesoftware,orif
youmodifyit:responsibilitiestorespectthefreedomof others.
Forexample,ifyoudistributecopiesofsuchaprogram,whether
gratisorforafee,youmustpassontotherecipientsthesame
freedomsthatyou received.Youmustmakesurethatthey,too, receive
orcangetthesourcecode.Andyoumustshowthemthesetermssothey
knowtheir rights.
DevelopersthatusetheGNUGPLprotectyourrightswithtwosteps:
(1)assertcopyrightonthesoftware,and (2)offeryouthisLicense
givingyoulegalpermissiontocopy,distributeand/ormodify it.
Forthedevelopers'andauthors'protection,theGPLclearlyexplains
thatthereisnowarrantyforthisfree software.Forbothusers'and
authors'sake,theGPLrequiresthatmodifiedversionsbemarkedas
changed,sothattheirproblemswillnotbeattributederroneouslyto
authorsofprevious versions.
Somedevicesaredesignedtodenyusersaccesstoinstallorrun
modifiedversionsofthesoftwareinsidethem,althoughthemanufacturer
cando so.Thisisfundamentallyincompatiblewiththeaimof
protectingusers'freedomtochangethe software.Thesystematic
patternofsuchabuseoccursintheareaofproductsforindividualsto
use,whichispreciselywhereitismostunacceptable.Therefore,we
havedesignedthisversionoftheGPLtoprohibitthepracticeforthose
products.Ifsuchproblemsarisesubstantiallyinotherdomains,we
standreadytoextendthisprovisiontothosedomainsinfutureversions
oftheGPL,asneededtoprotectthefreedomofusers.
Finally,everyprogramisthreatenedconstantlybysoftware patents.
Statesshouldnotallowpatentstorestrictdevelopmentanduseof
softwareongeneral-purposecomputers,butinthosethatdo,wewishto
avoidthespecialdangerthatpatentsappliedtoafreeprogramcould
makeiteffectively proprietary.Topreventthis,theGPLassuresthat
patentscannotbeusedtorendertheprogramnon-free.
Theprecisetermsandconditionsforcopying,distributionand
modification follow.
TERMSANDCONDITIONS
0.Definitions.
"This License"referstoversion3oftheGNUGeneralPublicLicense.
"Copyright"alsomeanscopyright-likelawsthatapplytootherkindsof
works,suchassemiconductormasks.
"The Program"referstoanycopyrightableworklicensedunderthis
License.Eachlicenseeisaddressedas"you"."Licensees"and
"recipients"maybeindividualsor organizations.
To"modify"aworkmeanstocopyfromoradaptallorpartofthework
inafashionrequiringcopyrightpermission,otherthanthemakingofan
exact copy.Theresultingworkiscalleda"modified version"ofthe
earlierworkorawork"based on"theearlier work.
A"covered work"meanseithertheunmodifiedProgramoraworkbased
onthe Program.
To"propagate"aworkmeanstodoanythingwithitthat,without
permission,wouldmakeyoudirectlyorsecondarilyliablefor
infringementunderapplicablecopyrightlaw,exceptexecutingitona
computerormodifyingaprivate copy.Propagationincludescopying,
distribution (withorwithoutmodification),makingavailabletothe
public,andinsomecountriesotheractivitiesas well.
To"convey"aworkmeansanykindofpropagationthatenablesother
partiestomakeorreceive copies.Mereinteractionwithauserthrough
acomputernetwork,withnotransferofacopy,isnot conveying.
Aninteractiveuserinterfacedisplays"Appropriate Legal Notices"
totheextentthatitincludesaconvenientandprominentlyvisible
featurethat (1)displaysanappropriatecopyrightnotice,and (2)
tellstheuserthatthereisnowarrantyforthework (excepttothe
extentthatwarrantiesareprovided),thatlicenseesmayconveythe
workunderthisLicense,andhowtoviewacopyofthis License.If
theinterfacepresentsalistofusercommandsoroptions,suchasa
menu,aprominentiteminthelistmeetsthis criterion.
1.Source Code.
The"source code"foraworkmeansthepreferredformofthework
formakingmodificationstoit."Object code"meansanynon-source
formofawork.
A"Standard Interface"meansaninterfacethateitherisanofficial
standarddefinedbyarecognizedstandardsbody,or,inthecaseof
interfacesspecifiedforaparticularprogramminglanguage,onethat
iswidelyusedamongdevelopersworkinginthat language.
The"System Libraries"ofanexecutableworkincludeanything,other
thantheworkasawhole,that (a)isincludedinthenormalformof
packagingaMajorComponent,butwhichisnotpartofthatMajor
Component,and (b)servesonlytoenableuseoftheworkwiththat
MajorComponent,ortoimplementaStandardInterfaceforwhichan
implementationisavailabletothepublicinsourcecode form.A
"Major Component",inthiscontext,meansamajoressentialcomponent
(kernel,windowsystem,andsoon)ofthespecificoperatingsystem
(ifany)onwhichtheexecutableworkruns,oracompilerusedto
producethework,oranobjectcodeinterpreterusedtorun it.
The"Corresponding Source"foraworkinobjectcodeformmeansall
thesourcecodeneededtogenerate,install,and (foranexecutable
work)runtheobjectcodeandtomodifythework,includingscriptsto
controlthoseactivities.However,itdoesnotincludethework's
SystemLibraries,orgeneral-purposetoolsorgenerallyavailablefree
programswhichareusedunmodifiedinperformingthoseactivitiesbut
whicharenotpartofthe work.Forexample,CorrespondingSource
includesinterfacedefinitionfilesassociatedwithsourcefilesfor
thework,andthesourcecodeforsharedlibrariesanddynamically
linkedsubprogramsthattheworkisspecificallydesignedtorequire,
suchasbyintimatedatacommunicationorcontrolflowbetweenthose
subprogramsandotherpartsofthe work.
TheCorrespondingSourceneednotincludeanythingthatusers
canregenerateautomaticallyfromotherpartsoftheCorresponding
Source.
TheCorrespondingSourceforaworkinsourcecodeformisthat
same work.
2.Basic Permissions.
AllrightsgrantedunderthisLicensearegrantedforthetermof
copyrightontheProgram,andareirrevocableprovidedthestated
conditionsare met.ThisLicenseexplicitlyaffirmsyourunlimited
permissiontoruntheunmodified Program.Theoutputfromrunninga
coveredworkiscoveredbythisLicenseonlyiftheoutput,givenits
content, constitutesacoveredwork.ThisLicenseacknowledgesyour
rightsoffairuseorotherequivalent,asprovidedbycopyright law.
Youmaymake,runandpropagatecoveredworksthatyoudonot
convey,withoutconditionssolongasyourlicenseotherwiseremains
in force.Youmayconveycoveredworkstoothersforthesolepurpose
ofhavingthemmakemodificationsexclusivelyforyou,orprovideyou
withfacilitiesforrunningthoseworks,providedthatyoucomplywith
thetermsofthisLicenseinconveyingallmaterialforwhichyoudo
notcontrol copyright.Thosethusmakingorrunningthecoveredworks
foryoumustdosoexclusivelyonyourbehalf,underyourdirection
andcontrol,ontermsthatprohibitthemfrommakinganycopiesof
yourcopyrightedmaterialoutsidetheirrelationshipwith you.
Conveyingunderanyothercircumstancesispermittedsolelyunder
theconditionsstated below.Sublicensingisnotallowed;section10
makesit unnecessary.
3.ProtectingUsers'LegalRightsFromAnti-CircumventionLaw.
Nocoveredworkshallbedeemedpartofaneffectivetechnological
measureunderanyapplicablelawfulfillingobligationsunderarticle
11oftheWIPOcopyrighttreatyadoptedon20December1996,or
similarlawsprohibitingorrestrictingcircumventionofsuch
measures.
Whenyouconveyacoveredwork,youwaiveanylegalpowertoforbid
circumventionoftechnologicalmeasurestotheextentsuchcircumvention
iseffectedbyexercisingrightsunderthisLicensewithrespectto
thecoveredwork,andyoudisclaimanyintentiontolimitoperationor
modificationoftheworkasameansofenforcing,againstthework's
users,yourorthirdparties'legalrightstoforbidcircumventionof
technological measures.
4.ConveyingVerbatim Copies.
YoumayconveyverbatimcopiesoftheProgram'ssourcecodeasyou
receiveit,inanymedium,providedthatyouconspicuouslyand
appropriatelypublishoneachcopyanappropriatecopyrightnotice;
keepintactallnoticesstatingthatthisLicenseandany
non-permissivetermsaddedinaccordwithsection7applytothecode;
keepintactallnoticesoftheabsenceofanywarranty;andgiveall
recipientsacopyofthisLicensealongwiththe Program.
Youmaychargeanypriceornopriceforeachcopythatyouconvey,
andyoumayoffersupportorwarrantyprotectionfora fee.
5.ConveyingModifiedSource Versions.
YoumayconveyaworkbasedontheProgram,orthemodificationsto
produceitfromtheProgram,intheformofsourcecodeunderthe
termsofsection4,providedthatyoualsomeetalloftheseconditions:
a)Theworkmustcarryprominentnoticesstatingthatyoumodified
it,andgivingarelevant date.
b)Theworkmustcarryprominentnoticesstatingthatitis
releasedunderthisLicenseandanyconditionsaddedundersection
7.Thisrequirementmodifiestherequirementinsection4to
"keep intact all notices".
c)Youmustlicensetheentirework,asawhole,underthis
Licensetoanyonewhocomesintopossessionofa copy.This
Licensewillthereforeapply,alongwithanyapplicablesection7
additionalterms,tothewholeofthework,andallitsparts,
regardlessofhowtheyarepackaged.ThisLicensegivesno
permissiontolicensetheworkinanyotherway,butitdoesnot
invalidatesuchpermissionifyouhaveseparatelyreceived it.
d)Iftheworkhasinteractiveuserinterfaces,eachmustdisplay
AppropriateLegalNotices;however,iftheProgramhasinteractive
interfacesthatdonotdisplayAppropriateLegalNotices, your
workneednotmakethemdoso.
Acompilationofacoveredworkwithotherseparateandindependent
works,whicharenotbytheirnatureextensionsofthecoveredwork,
andwhicharenotcombinedwithitsuchastoformalargerprogram,
inoronavolumeofastorageordistributionmedium,iscalledan
"aggregate"ifthecompilationanditsresultingcopyrightarenot
usedtolimittheaccessorlegalrightsofthecompilation'susers
beyondwhattheindividualworks permit.Inclusionofacoveredwork
inanaggregatedoesnotcausethisLicensetoapplytotheother
partsofthe aggregate.
6.ConveyingNon-SourceForms.
Youmayconveyacoveredworkinobjectcodeformundertheterms
ofsections4and5,providedthatyoualsoconveythe
machine-readableCorrespondingSourceunderthetermsofthisLicense,
inoneoftheseways:
a)Conveytheobjectcodein,orembodiedin,aphysicalproduct
(includingaphysicaldistributionmedium),accompaniedbythe
CorrespondingSourcefixedonadurablephysicalmedium
customarilyusedforsoftware interchange.
b)Conveytheobjectcodein,orembodiedin,aphysicalproduct
(includingaphysicaldistributionmedium),accompaniedbya
writtenoffer,validforatleastthreeyearsandvalidforas
longasyouoffersparepartsorcustomersupportforthatproduct
model,togiveanyonewhopossessestheobjectcodeeither (1)a
copyoftheCorrespondingSourceforallthesoftwareinthe
productthatiscoveredbythisLicense,onadurablephysical
mediumcustomarilyusedforsoftwareinterchange,forapriceno
morethanyourreasonablecostofphysicallyperformingthis
conveyingofsource,or (2)accesstocopythe
CorrespondingSourcefromanetworkserveratno charge.
c)Conveyindividualcopiesoftheobjectcodewithacopyofthe
writtenoffertoprovidetheCorresponding Source.This
alternativeisallowedonlyoccasionallyandnoncommercially,and
onlyifyoureceivedtheobjectcodewithsuchanoffer,inaccord
withsubsection6b.
d)Conveytheobjectcodebyofferingaccessfromadesignated
place (gratisorforacharge),andofferequivalentaccesstothe
CorrespondingSourceinthesamewaythroughthesameplaceatno
further charge.Youneednotrequirerecipientstocopythe
CorrespondingSourcealongwiththeobject code.Iftheplaceto
copytheobjectcodeisanetworkserver,theCorrespondingSource
maybeonadifferentserver (operatedbyyouorathirdparty)
thatsupportsequivalentcopyingfacilities,providedyoumaintain
cleardirectionsnexttotheobjectcodesayingwheretofindthe
Corresponding Source.Regardlessofwhatserverhoststhe
CorrespondingSource,youremainobligatedtoensurethatitis
availableforaslongasneededtosatisfythese requirements.
e)Conveytheobjectcodeusingpeer-to-peertransmission,provided
youinformotherpeerswheretheobjectcodeandCorresponding
Sourceoftheworkarebeingofferedtothegeneralpublicatno
chargeundersubsection6d.
Aseparableportionoftheobjectcode,whosesourcecodeisexcluded
fromtheCorrespondingSourceasaSystemLibrary,neednotbe
includedinconveyingtheobjectcode work.
A"User Product"iseither (1)a"consumer product",whichmeansany
tangiblepersonalpropertywhichisnormallyusedforpersonal,family,
orhouseholdpurposes,or (2)anythingdesignedorsoldforincorporation
intoa dwelling.Indeterminingwhetheraproductisaconsumerproduct,
doubtfulcasesshallberesolvedinfavorof coverage.Foraparticular
productreceivedbyaparticularuser,"normally used"referstoa
typicalorcommonuseofthatclassofproduct,regardlessofthestatus
oftheparticularuserorofthewayinwhichtheparticularuser
actuallyuses,orexpectsorisexpectedtouse,the product.Aproduct
isaconsumerproductregardlessofwhethertheproducthassubstantial
commercial,industrialornon-consumeruses,unlesssuchusesrepresent
theonlysignificantmodeofuseoftheproduct.
"Installation Information"foraUserProductmeansanymethods,
procedures,authorizationkeys,orotherinformationrequiredtoinstall
andexecutemodifiedversionsofacoveredworkinthatUserProductfrom
amodifiedversionofitsCorresponding Source.Theinformationmust
sufficetoensurethatthecontinuedfunctioningofthemodifiedobject
codeisinnocasepreventedorinterferedwithsolelybecause
modificationhasbeen made.
Ifyouconveyanobjectcodeworkunderthissectionin,orwith,or
specificallyforusein,aUserProduct,andtheconveyingoccursas
partofatransactioninwhichtherightofpossessionanduseofthe
UserProductistransferredtotherecipientinperpetuityorfora
fixedterm (regardlessofhowthetransactionischaracterized),the
CorrespondingSourceconveyedunderthissectionmustbeaccompanied
bytheInstallation Information.Butthisrequirementdoesnotapply
ifneitheryounoranythirdpartyretainstheabilitytoinstall
modifiedobjectcodeontheUserProduct (forexample,theworkhas
beeninstalledinROM).
TherequirementtoprovideInstallationInformationdoesnotincludea
requirementtocontinuetoprovidesupportservice,warranty,orupdates
foraworkthathasbeenmodifiedorinstalledbytherecipient,orfor
theUserProductinwhichithasbeenmodifiedor installed.Accesstoa
networkmaybedeniedwhenthemodificationitselfmateriallyand
adverselyaffectstheoperationofthenetworkorviolatestherulesand
protocolsforcommunicationacrossthe network.
CorrespondingSourceconveyed,andInstallationInformationprovided,
inaccordwiththissectionmustbeinaformatthatispublicly
documented (andwithanimplementationavailabletothepublicin
sourcecodeform),andmustrequirenospecialpasswordorkeyfor
unpacking,readingor copying.
7.AdditionalTerms.
"Additional permissions"aretermsthatsupplementthetermsofthis
Licensebymakingexceptionsfromoneormoreofits conditions.
AdditionalpermissionsthatareapplicabletotheentireProgramshall
betreatedasthoughtheywereincludedinthisLicense,totheextent
thattheyarevalidunderapplicable law.Ifadditionalpermissions
applyonlytopartoftheProgram,thatpartmaybeusedseparately
underthosepermissions,buttheentireProgramremainsgovernedby
thisLicensewithoutregardtotheadditional permissions.
Whenyouconveyacopyofacoveredwork,youmayatyouroption
removeanyadditionalpermissionsfromthatcopy,orfromanypartof
it. (Additionalpermissionsmaybewrittentorequiretheirown
removalincertaincaseswhenyoumodifythe work.)Youmayplace
additionalpermissionsonmaterial,addedbyyoutoacoveredwork,
forwhichyouhaveorcangiveappropriatecopyright permission.
NotwithstandinganyotherprovisionofthisLicense,formaterialyou
addtoacoveredwork,youmay (ifauthorizedbythecopyrightholdersof
thatmaterial)supplementthetermsofthisLicensewithterms:
a)Disclaimingwarrantyorlimitingliabilitydifferentlyfromthe
termsofsections15and16ofthisLicense;or
b)Requiringpreservationofspecifiedreasonablelegalnoticesor
authorattributionsinthatmaterialorintheAppropriateLegal
Noticesdisplayedbyworkscontainingit;or
c)Prohibitingmisrepresentationoftheoriginofthatmaterial,or
requiringthatmodifiedversionsofsuchmaterialbemarkedin
reasonablewaysasdifferentfromtheoriginalversion;or
d)Limitingtheuseforpublicitypurposesofnamesoflicensorsor
authorsofthematerial;or
e)Decliningtograntrightsundertrademarklawforuseofsome
tradenames,trademarks,orservicemarks;or
f)Requiringindemnificationoflicensorsandauthorsofthat
materialbyanyonewhoconveysthematerial (ormodifiedversionsof
it)withcontractualassumptionsofliabilitytotherecipient,for
anyliabilitythatthesecontractualassumptionsdirectlyimposeon
thoselicensorsand authors.
Allothernon-permissiveadditionaltermsareconsidered"further
restrictions"withinthemeaningofsection10.IftheProgramasyou
receivedit,oranypartofit,containsanoticestatingthatitis
governedbythisLicensealongwithatermthatisafurther
restriction,youmayremovethat term.Ifalicensedocumentcontains
afurtherrestrictionbutpermitsrelicensingorconveyingunderthis
License,youmayaddtoacoveredworkmaterialgovernedbytheterms
ofthatlicensedocument,providedthatthefurtherrestrictiondoes
notsurvivesuchrelicensingor conveying.
Ifyouaddtermstoacoveredworkinaccordwiththissection,you
mustplace,intherelevantsourcefiles,astatementofthe
additionaltermsthatapplytothosefiles,oranoticeindicating
wheretofindtheapplicable terms.
Additionalterms,permissiveornon-permissive,maybestatedinthe
formofaseparatelywrittenlicense,orstatedasexceptions;
theaboverequirementsapplyeither way.
8.Termination.
Youmaynotpropagateormodifyacoveredworkexceptasexpressly
providedunderthis License.Anyattemptotherwisetopropagateor
modifyitisvoid,andwillautomaticallyterminateyourrightsunder
thisLicense (includinganypatentlicensesgrantedunderthethird
paragraphofsection11).
However,ifyouceaseallviolationofthisLicense,thenyour
licensefromaparticularcopyrightholderisreinstated (a)
provisionally,unlessanduntilthecopyrightholderexplicitlyand
finallyterminatesyourlicense,and (b)permanently,ifthecopyright
holderfailstonotifyyouoftheviolationbysomereasonablemeans
priorto60daysafterthecessation.
Moreover,yourlicensefromaparticularcopyrightholderis
reinstatedpermanentlyifthecopyrightholdernotifiesyouofthe
violationbysomereasonablemeans,thisisthefirsttimeyouhave
receivednoticeofviolationofthisLicense (foranywork)fromthat
copyrightholder,andyoucuretheviolationpriorto30daysafter
yourreceiptofthe notice.
Terminationofyourrightsunderthissectiondoesnotterminatethe
licensesofpartieswhohavereceivedcopiesorrightsfromyouunder
this License.Ifyourrightshavebeenterminatedandnotpermanently
reinstated,youdonotqualifytoreceivenewlicensesforthesame
materialundersection10.
9.AcceptanceNotRequiredforHaving Copies.
YouarenotrequiredtoacceptthisLicenseinordertoreceiveor
runacopyofthe Program.Ancillarypropagationofacoveredwork
occurringsolelyasaconsequenceofusingpeer-to-peertransmission
toreceiveacopylikewisedoesnotrequireacceptance.However,
nothingotherthanthisLicensegrantsyoupermissiontopropagateor
modifyanycovered work.Theseactionsinfringecopyrightifyoudo
notacceptthisLicense.Therefore,bymodifyingorpropagatinga
coveredwork,youindicateyouracceptanceofthisLicensetodo so.
10.AutomaticLicensingofDownstream Recipients.
Eachtimeyouconveyacoveredwork,therecipientautomatically
receivesalicensefromtheoriginallicensors,torun,modifyand
propagatethatwork,subjecttothis License.Youarenotresponsible
forenforcingcompliancebythirdpartieswiththis License.
An"entity transaction"isatransactiontransferringcontrolofan
organization,orsubstantiallyallassetsofone,orsubdividingan
organization,ormerging organizations.Ifpropagationofacovered
workresultsfromanentitytransaction,eachpartytothat
transactionwhoreceivesacopyoftheworkalsoreceiveswhatever
licensestotheworktheparty'spredecessorininteresthadorcould
giveunderthepreviousparagraph,plusarighttopossessionofthe
CorrespondingSourceoftheworkfromthepredecessorininterest,if
thepredecessorhasitorcangetitwithreasonable efforts.
Youmaynotimposeanyfurtherrestrictionsontheexerciseofthe
rightsgrantedoraffirmedunderthis License.Forexample,youmay
notimposealicensefee,royalty,orotherchargeforexerciseof
rightsgrantedunderthisLicense,andyoumaynotinitiatelitigation
(includingacross-claimorcounterclaiminalawsuit)allegingthat
anypatentclaimisinfringedbymaking,using,selling,offeringfor
sale,orimportingtheProgramoranyportionof it.
11.Patents.
A"contributor"isacopyrightholderwhoauthorizesuseunderthis
LicenseoftheProgramoraworkonwhichtheProgramis based.The
workthuslicensediscalledthecontributor's"contributor version".
Acontributor's"essential patent claims"areallpatentclaims
ownedorcontrolledbythecontributor,whetheralreadyacquiredor
hereafteracquired,thatwouldbeinfringedbysomemanner,permitted
bythisLicense,ofmaking,using,orsellingitscontributorversion,
butdonotincludeclaimsthatwouldbeinfringedonlyasa
consequenceoffurthermodificationofthecontributor version.For
purposesofthisdefinition,"control"includestherighttogrant
patentsublicensesinamannerconsistentwiththerequirementsof
this License.
Eachcontributorgrantsyouanon-exclusive,worldwide,royalty-free
patentlicenseunderthecontributor'sessentialpatentclaims,to
make,use,sell,offerforsale,importandotherwiserun,modifyand
propagatethecontentsofitscontributor version.
Inthefollowingthreeparagraphs,a"patent license"isanyexpress
agreementorcommitment,howeverdenominated,nottoenforceapatent
(suchasanexpresspermissiontopracticeapatentorcovenantnotto
sueforpatentinfringement).To"grant"suchapatentlicensetoa
partymeanstomakesuchanagreementorcommitmentnottoenforcea
patentagainstthe party.
Ifyouconveyacoveredwork,knowinglyrelyingonapatentlicense,
andtheCorrespondingSourceoftheworkisnotavailableforanyone
tocopy,freeofchargeandunderthetermsofthisLicense,througha
publiclyavailablenetworkserverorotherreadilyaccessiblemeans,
thenyoumusteither (1)causetheCorrespondingSourcetobeso
available,or (2)arrangetodepriveyourselfofthebenefitofthe
patentlicenseforthisparticularwork,or (3)arrange,inamanner
consistentwiththerequirementsofthisLicense,toextendthepatent
licensetodownstreamrecipients."Knowingly relying"meansyouhave
actualknowledgethat,butforthepatentlicense,yourconveyingthe
coveredworkinacountry,oryourrecipient'suseofthecoveredwork
inacountry,wouldinfringeoneormoreidentifiablepatentsinthat
countrythatyouhavereasontobelievearevalid.
If,pursuanttoorinconnectionwithasingletransactionor
arrangement,youconvey,orpropagatebyprocuringconveyanceof,a
coveredwork,andgrantapatentlicensetosomeoftheparties
receivingthecoveredworkauthorizingthemtouse,propagate,modify
orconveyaspecificcopyofthecoveredwork,thenthepatentlicense
yougrantisautomaticallyextendedtoallrecipientsofthecovered
workandworksbasedon it.
Apatentlicenseis"discriminatory"ifitdoesnotincludewithin
thescopeofitscoverage,prohibitstheexerciseof,oris
conditionedonthenon-exerciseofoneormoreoftherightsthatare
specificallygrantedunderthis License.Youmaynotconveyacovered
workifyouareapartytoanarrangementwithathirdpartythatis
inthebusinessofdistributingsoftware,underwhichyoumakepayment
tothethirdpartybasedontheextentofyouractivityofconveying
thework,andunderwhichthethirdpartygrants,toanyofthe
partieswhowouldreceivethecoveredworkfromyou,adiscriminatory
patentlicense (a)inconnectionwithcopiesofthecoveredwork
conveyedbyyou (orcopiesmadefromthosecopies),or (b)primarily
forandinconnectionwithspecificproductsorcompilationsthat
containthecoveredwork,unlessyouenteredintothatarrangement,
orthatpatentlicensewasgranted,priorto28March2007.
NothinginthisLicenseshallbeconstruedasexcludingorlimiting
anyimpliedlicenseorotherdefensestoinfringementthatmay
otherwisebeavailabletoyouunderapplicablepatent law.
12.NoSurrenderofOthers' Freedom.
Ifconditionsareimposedonyou (whetherbycourtorder,agreementor
otherwise)thatcontradicttheconditionsofthisLicense,theydonot
excuseyoufromtheconditionsofthis License.Ifyoucannotconveya
coveredworksoastosatisfysimultaneouslyyourobligationsunderthis
Licenseandanyotherpertinentobligations,thenasaconsequenceyoumay
notconveyitat all.Forexample,ifyouagreetotermsthatobligateyou
tocollectaroyaltyforfurtherconveyingfromthosetowhomyouconvey
theProgram,theonlywayyoucouldsatisfyboththosetermsandthis
Licensewouldbetorefrainentirelyfromconveyingthe Program.
13.UsewiththeGNUAfferoGeneralPublic License.
NotwithstandinganyotherprovisionofthisLicense,youhave
permissiontolinkorcombineanycoveredworkwithaworklicensed
underversion3oftheGNUAfferoGeneralPublicLicenseintoasingle
combinedwork,andtoconveytheresulting work.Thetermsofthis
Licensewillcontinuetoapplytothepartwhichisthecoveredwork,
butthespecialrequirementsoftheGNUAfferoGeneralPublicLicense,
section13,concerninginteractionthroughanetworkwillapplytothe
combinationas such.
14.RevisedVersionsofthis License.
TheFreeSoftwareFoundationmaypublishrevisedand/ornewversionsof
theGNUGeneralPublicLicensefromtimeto time.Suchnewversionswill
besimilarinspirittothepresentversion,butmaydifferindetailto
addressnewproblemsor concerns.
Eachversionisgivenadistinguishingversion number.Ifthe
ProgramspecifiesthatacertainnumberedversionoftheGNUGeneral
PublicLicense"or any later version"appliestoit,youhavethe
optionoffollowingthetermsandconditionseitherofthatnumbered
versionorofanylaterversionpublishedbytheFreeSoftware
Foundation.IftheProgramdoesnotspecifyaversionnumberofthe
GNUGeneralPublicLicense,youmaychooseanyversioneverpublished
bytheFreeSoftware Foundation.
IftheProgramspecifiesthataproxycandecidewhichfuture
versionsoftheGNUGeneralPublicLicensecanbeused,thatproxy's
publicstatementofacceptanceofaversionpermanentlyauthorizesyou
tochoosethatversionforthe Program.
Laterlicenseversionsmaygiveyouadditionalordifferent
permissions.However,noadditionalobligationsareimposedonany
authororcopyrightholderasaresultofyourchoosingtofollowa
later version.
15.Disclaimerof Warranty.
THEREISNOWARRANTYFORTHEPROGRAM,TOTHEEXTENTPERMITTEDBY
APPLICABLE LAW.EXCEPTWHENOTHERWISESTATEDINWRITINGTHECOPYRIGHT
HOLDERSAND/OROTHERPARTIESPROVIDETHEPROGRAM"AS IS"WITHOUTWARRANTY
OFANYKIND,EITHEREXPRESSEDORIMPLIED,INCLUDING,BUTNOTLIMITEDTO,
THEIMPLIEDWARRANTIESOFMERCHANTABILITYANDFITNESSFORAPARTICULAR
PURPOSE.THEENTIRERISKASTOTHEQUALITYANDPERFORMANCEOFTHEPROGRAM
ISWITH YOU.SHOULDTHEPROGRAMPROVEDEFECTIVE,YOUASSUMETHECOSTOF
ALLNECESSARYSERVICING,REPAIROR CORRECTION.
16.Limitationof Liability.
INNOEVENTUNLESSREQUIREDBYAPPLICABLELAWORAGREEDTOINWRITING
WILLANYCOPYRIGHTHOLDER,ORANYOTHERPARTYWHOMODIFIESAND/ORCONVEYS
THEPROGRAMASPERMITTEDABOVE,BELIABLETOYOUFORDAMAGES,INCLUDINGANY
GENERAL,SPECIAL,INCIDENTALORCONSEQUENTIALDAMAGESARISINGOUTOFTHE
USEORINABILITYTOUSETHEPROGRAM (INCLUDINGBUTNOTLIMITEDTOLOSSOF
DATAORDATABEINGRENDEREDINACCURATEORLOSSESSUSTAINEDBYYOUORTHIRD
PARTIESORAFAILUREOFTHEPROGRAMTOOPERATEWITHANYOTHERPROGRAMS),
EVENIFSUCHHOLDEROROTHERPARTYHASBEENADVISEDOFTHEPOSSIBILITYOF
SUCH DAMAGES.
17.InterpretationofSections15and16.
Ifthedisclaimerofwarrantyandlimitationofliabilityprovided
abovecannotbegivenlocallegaleffectaccordingtotheirterms,
reviewingcourtsshallapplylocallawthatmostcloselyapproximates
anabsolutewaiverofallcivilliabilityinconnectionwiththe
Program,unlessawarrantyorassumptionofliabilityaccompaniesa
copyofthePrograminreturnfora fee.
ENDOFTERMSANDCONDITIONS
HowtoApplyTheseTermstoYourNewPrograms
Ifyoudevelopanewprogram,andyouwantittobeofthegreatest
possibleusetothepublic,thebestwaytoachievethisistomakeit
freesoftwarewhicheveryonecanredistributeandchangeunderthese terms.
Todoso,attachthefollowingnoticestothe program.Itissafest
toattachthemtothestartofeachsourcefiletomosteffectively
statetheexclusionofwarranty;andeachfileshouldhaveatleast
the"copyright"lineandapointertowherethefullnoticeisfound.
<onelinetogivetheprogram'snameandabriefideaofwhatitdoes.>
Copyright (C)<year><nameofauthor>
Thisprogramisfreesoftware:youcanredistributeitand/ormodify
itunderthetermsoftheGNUGeneralPublicLicenseaspublishedby
theFreeSoftwareFoundation,eitherversion3oftheLicense,or
(atyouroption)anylater version.
Thisprogramisdistributedinthehopethatitwillbeuseful,
butWITHOUTANYWARRANTY;withouteventheimpliedwarrantyof
MERCHANTABILITYorFITNESSFORAPARTICULAR PURPOSE.Seethe
GNUGeneralPublicLicenseformore details.
YoushouldhavereceivedacopyoftheGNUGeneralPublicLicense
alongwiththis program.Ifnot,see<https://www.gnu.org/licenses/>.
Alsoaddinformationonhowtocontactyoubyelectronicandpaper mail.
Iftheprogramdoesterminalinteraction,makeitoutputashort
noticelikethiswhenitstartsinaninteractivemode:
<program>Copyright (C)<year><nameofauthor>
ThisprogramcomeswithABSOLUTELYNOWARRANTY;fordetailstype`show w'.
This is free software, and you are welcome to redistribute it
under certain conditions; type `showc'for details.
Thehypotheticalcommands`show w' and `showc'shouldshowtheappropriate
partsoftheGeneralPublic License.Ofcourse,yourprogram'scommands
mightbedifferent;foraGUIinterface,youwouldusean"about box".
Youshouldalsogetyouremployer (ifyouworkasaprogrammer)orschool,
ifany,tosigna"copyright disclaimer"fortheprogram,if necessary.
Formoreinformationonthis,andhowtoapplyandfollowtheGNUGPL,see
<https://www.gnu.org/licenses/>.
TheGNUGeneralPublicLicensedoesnotpermitincorporatingyourprogram
intoproprietary programs.Ifyourprogramisasubroutinelibrary,you
mayconsideritmoreusefultopermitlinkingproprietaryapplicationswith
the library.Ifthisiswhatyouwanttodo,usetheGNULesserGeneral
PublicLicenseinsteadofthis License.Butfirst,pleaseread
<https://www.gnu.org/licenses/why-not-lgpl.html>.