32PFL4907/F7 User Manual

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itscriteriaoffreedom.TheLesserGeneralPublicLicensepermitsmore

laxcriteriaforlinkingothercodewiththelibrary.

Wecallthislicensethe“Lesser”GeneralPublicLicensebecauseitdoes

Less to protect the user's freedom than the ordinary GeneralPublic

License. It also provides other free software developers Less of an

advantageovercompetingnon-freeprograms.Thesedisadvantagesare

thereasonweusetheordinaryGeneralPublicLicenseformanylibraries.

However, the Lesser license provides advantages in certain special

circumstances.

Forexample,onrareoccasions,theremaybeaspecialneedtoencourage

thewidestpossibleuseofacertainlibrary,sothatitbecomesade-facto

standard.Toachievethis,non-freeprogramsmustbeallowedtousethe

library.Amorefrequentcaseisthatafreelibrarydoesthesamejobas

widelyusednon-freelibraries.Inthiscase,thereislittletogainbylimiting

thefreelibrarytofreesoftwareonly,soweusetheLesserGeneralPublic

License.

Inothercases,permissiontouseaparticularlibraryinnon-freeprograms

enablesagreaternumberofpeopletousealargebodyoffreesoftware.

Forexample,permissiontousetheGNUCLibraryinnon-freeprograms

enablesmanymorepeopletousethewholeGNUoperatingsystem,as

wellasitsvariant,theGNU/Linuxoperatingsystem.

AlthoughtheLesserGeneralPublicLicenseisLessprotectiveoftheusers'

freedom,itdoesensurethattheuserofaprogramthatislinkedwiththe

Libraryhasthefreedomandthewherewithaltorunthatprogramusing

amodiedversionoftheLibrary.

Theprecisetermsandconditionsforcopying,distributionandmodication

follow.Paycloseattentiontothedifferencebetweena“workbasedon

thelibrary”anda“workthatusesthelibrary”.Theformercontainscode

derivedfromthelibrary,whereasthelattermustbecombinedwiththe

libraryinordertorun.

GNULESSERGENERALPUBLICLICENSE

TERMSAND CONDITIONS FOR COPYING, DISTRIBUTIONAND

MODIFICATION

0.  ThisLicenseAgreementappliestoanysoftwarelibraryorother

programwhichcontainsanoticeplacedbythecopyrightholder

or other authorized party saying it may be distributed under

thetermsofthisLesserGeneralPublicLicense(alsocalled“this

License”).Eachlicenseeisaddressedas“you”.

  A “library” means a collection of software functions and/or

datapreparedso as to beconveniently linkedwith application

programs(whichusesomeofthosefunctionsanddata)toform

executables.

  The“Library”,below,referstoanysuchsoftwarelibraryorwork

which has been distributedunder these terms.A“workbased

on the Library” means either the Library or any derivative

work undercopyrightlaw:thatistosay,aworkcontainingthe

Libraryoraportionofit,eitherverbatimorwithmodications

and/or translated straightforwardly into another language.

(Hereinafter,translationisincludedwithoutlimitationintheterm

“modication”.)

  “Sourcecode”foraworkmeansthepreferredformofthework

formakingmodicationstoit.Foralibrary,completesourcecode

meansall thesource codeforallmodules itcontains, plusany

associatedinterfacedenitionles,plusthescriptsusedtocontrol

compilationandinstallationofthelibrary.

  Activitiesotherthancopying,distributionandmodicationarenot

covered bythis License; they are outside its scope.Theact of

runningaprogramusingtheLibraryisnotrestricted,andoutput

fromsuchaprogramiscoveredonlyifitscontentsconstitutea

workbasedontheLibrary(independentoftheuseoftheLibrary

inatoolforwritingit).Whetherthatistruedependsonwhatthe

LibrarydoesandwhattheprogramthatusestheLibrarydoes.

1.  You may copy and distribute verbatim copies of the Library's

completesourcecodeasyoureceiveit,inanymedium,provided

thatyouconspicuouslyandappropriatelypublishoneachcopy

anappropriatecopyrightnoticeanddisclaimerofwarranty;keep

intactallthenoticesthatrefertothisLicenseandtotheabsence

ofanywarranty;anddistributeacopyofthisLicensealongwith

theLibrary.

  Youmaychargeafeeforthephysicalactoftransferringacopy,

andyoumayatyouroptionofferwarrantyprotectioninexchange

forafee.

2.  YoumaymodifyyourcopyorcopiesoftheLibraryoranyportion

ofit,thusforminga workbased onthe Library, 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)Themodiedworkmustitselfbeasoftwarelibrary.

  b)Youmustcausethelesmodiedtocarryprominentnotices

statingthatyouchangedthelesandthedateofanychange.

  c)Youmustcausethewholeoftheworktobelicensedatno

chargetoallthirdpartiesunderthetermsofthisLicense.

  d)IfafacilityinthemodiedLibraryreferstoafunctionoratable

of data to be supplied by an application program that uses

thefacility,otherthanasanargumentpassedwhenthefacility

isinvoked,thenyoumustmakeagoodfaithefforttoensure

that,intheeventanapplicationdoesnotsupplysuchfunction

ortable,thefacilitystilloperates,andperformswhateverpart

of its purpose remains meaningful. (For example, a function

in a library to compute square roots has a purposethat is

entirelywell-denedindependentoftheapplication.Therefore,

Subsection2drequiresthatanyapplication-suppliedfunction

ortableusedbythisfunctionmustbeoptional:iftheapplication

doesnotsupplyit,thesquarerootfunctionmuststillcompute

squareroots.)

  Theserequirements applyto themodied workasa whole.If

identiablesectionsofthatworkarenotderivedfromtheLibrary,

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Library,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Library.

  Inaddition,mereaggregationofanotherworknotbasedonthe

LibrarywiththeLibrary(orwithaworkbasedontheLibrary)on

avolumeofastorageordistributionmediumdoesnotbringthe

otherworkunderthescopeofthisLicense.

3.  YoumayopttoapplythetermsoftheordinaryGNUGeneral

Public License instead of this License to a given copy of the

Library.Todothis,youmustalterallthenoticesthatrefertothis

License,sothattheyrefertotheordinaryGNUGeneralPublic

License,version2,insteadoftothisLicense.(Ifanewerversion

thanversion2oftheordinaryGNUGeneralPublicLicensehas

appeared,thenyoucanspecifythatversioninsteadifyouwish.)

Donotmakeanyotherchangeinthesenotices.

  Oncethischangeismadeinagivencopy,itisirreversibleforthat

copy,sotheordinaryGNUGeneralPublicLicenseappliestoall

subsequentcopiesandderivativeworksmadefromthatcopy.

  Thisoptionisusefulwhenyouwishtocopypartofthecodeof

theLibraryintoaprogramthatisnotalibrary.

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User Manual - Page 58