Specifications

To“modify”aworkmeanstocopyfromoradaptallorpartoftheworkinafashion
requiringcopyrightpermission,otherthanthemakingofanexactcopy.Theresultingwork
iscalleda“modifiedversion”oftheearlierworkorawork“basedon”theearlierwork.
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A“coveredwork”meanseithertheunmodifiedProgramoraworkbasedontheProgram.
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To“propagate”aworkmeanstodoanythingwithitthat,withoutpermission,wouldmake
youdirectlyorsecondarilyliableforinfringementunderapplicablecopyrightlaw,except
executingitonacomputerormodifyingaprivatecopy.Propagationincludescopying,
distribution(withorwithoutmodification),makingavailabletothepublic,andinsome
countriesotheractivitiesaswell.
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To“convey”aworkmeansanykindofpropagationthatenablesotherpartiestomakeor
receivecopies.Mereinteractionwithauserthroughacomputernetwork,withnotransfer
ofacopy,isnotconveying.
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Aninteractiveuserinterfacedisplays“AppropriateLegalNotices”totheextentthatit
includesaconvenientandprominentlyvisiblefeaturethat(1)displaysanappropriate
copyrightnotice,and(2)tellstheuserthatthereisnowarrantyforthework(excepttothe
extentthatwarrantiesareprovided),thatlicenseesmayconveytheworkunderthis
License,andhowtoviewacopyofthisLicense.Iftheinterfacepresentsalistofuser
commandsoroptions,suchasamenu,aprominentiteminthelistmeetsthiscriterion.
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1.SourceCode.
The“sourcecode”foraworkmeansthepreferredformoftheworkformaking
modificationstoit.“Objectcode”meansanynon‐sourceformofawork.
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A“StandardInterface”meansaninterfacethateitherisanofficialstandarddefinedbya
recognizedstandardsbody,or,inthecaseofinterfacesspecifiedforaparticular
programminglanguage,onethatiswidelyusedamongdevelopersworkinginthat
language.
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The“SystemLibraries”ofanexecutableworkincludeanything,otherthantheworkasa
whole,that(a)isincludedinthenormalformofpackagingaMajorComponent,butwhich
isnotpartofthatMajorComponent,and(b)servesonlytoenableuseoftheworkwith
thatMajorComponent,ortoimplementaStandardInterfaceforwhichan
implementationisavailabletothepublicinsourcecodeform.A“MajorComponent”,in
thiscontext,meansamajoressentialcomponent(kernel,windowsystem,andsoon)of
 168