Sony XEL-1 Operating Instructions Manual page 49

3-215-743-31 (1)
111I1111111111111111111111111
3215743310
5.
YouarenOlrequiredtoaccepllhisUcense,sinecyouhavenotsi~mcd
it. Ilow'<"\er,nolhingclscgrants
you pcrmission to modify or distrihule Ih,'Program or itsderivali\'e works 'Illesl;aoion)arcprnhibitedhy
taw if you do not "ccept this License. Thercfore,hy modifyingordistrihulingthe Program (or any work
baS<.'dontheProgramf,youindicateyouracn'p13nceofthisl.icensc to do so, "nd all ilS terms and <:onditions
lor copying. dislribuling or modifying lhe Program or works hased onil
Iflheprogram is interacti\'C,makeitoutpul asbort notice like this when it starts inan interactiwmndc
Gnomovision wrsion 69. Copyright (Cl year name ofaUlhm
Gnomovision comes willi AIlSOLUTELY NO WARRANTY: lorde13ils type show w'
This is fn."<: sott"are, and you arc w'ekome 10 redislributc it und<:r <:enain condilions; type' show c' lor
delails
REQUIRED PUBLIC STATEMENT FOR GPLlLGPL LICENSED SOFTWARE
USED IN THIS TELEVISION
TI,{- tollo"ing GPL ncculablcsand LG!'L libraries ;lre used in this produCl ;md arc subject to the GPU
L(il'l Liccn>c Agrccmcnls induJc<.las (XIrt of this documcntat;ol1
CPL £XECUTAIJLES:
ATi GTX Lin"x Kernel
busyoox
insmod
GPL LIBRARIES:
lihfn.-etypc.so
LGI'L L1BRARlt:S:
libuCliboo
Id.So
lilK\Sn
libmso
lihpthrcad.so
lihgcc_s.so
libstd<'"TT.sn
Soun;c "ooc for lhc,,'cx<:,:utahlcs anJ hhraricscan h<:obmincd using tlw following link:
hllp://w\\"'.sony.<:om/linux
GNU GENF.:RAL PUBLIC L1(Ei\SE
\'ersion 2,June 19'91
Copyright (C) 1989.1991 Free Suflware Foundation. Inc .. 51 Franklin Strccl, I'ifth Floor. Iloslon, MA
02110-130 I. USA. Everyone is pcrmil1cd to copy and distribute vcrbalim eopie,; ofthi,;
lie~ns<:
document.
but':hangingilisnolallowed.
rhe licenses lor most softwaremc designed to takc away your Ireedom 10 share and change iL By,;onlrast.
the GNU General Public License is intended to guarantee your
f~edom
to >hare and change
f~e
software--lo
make sure the sofl"are is free for all its users, This Gmeral Puhlic Licens.: applies 10 Illost of the Free Sotl-
ware Foundation's software and to any OIher program "'hoseauthorseom mit to usingil. (Some other Free
SofiwareFoundationsohwareiseo\eredby
the GNU Library General Pulllie License instC"d.) You can apply it to your pmgrams. too.
When we speak of Iree soflware. we an" rd'erring to freedom. not price. Our Gen<'rall'ublic Licens<:s are
designed to m"kc sure th"t ynu Ila\e the Ireedom todistributecopie soffreesoflware(andchargeforthis>er-
vice ifyuuwisht. that you rceci\csource code or can gct it
if you want it. that you can change the software or us<: pieces of it inn,'w Irce program,: and that you know
you can do these things
roprotect your rights. we need to lTIake restrictions that ti,rhidanyonetodenyyoullws<"righlSOrlllaskyoli
to sUlTender the rights. These restriclionstranslatc1O,·~rtainrcsponsihilities for you if you distriblile copies
ofth<' softwar<:. or if you mudily it
For e~ample. il you distrillule copies 01 such" prugram. wheth<'r gratis or for a fee, yuu must give lhe rl.'l.·ip-
ientsaillherightslhatyouha\e. You r1\ust make sure lhal they, too, receive or can get the source code, And
you mUSl show them these tennssolhey know their rigllls
We prote<"l your rights with two ,!cps: t I) copyright the sotlware, and (2) otkr you this license "hicll gin'S
youlegalp.:rmi>siontocopy,dimibuteandlormodifythe)otiw"r<:
Also. forea,'haulhor'sprolcctionand ours."e "ant to make certain thate\,eryone lIndcrstandsthal there is
no warramy for this fr.:e software, Iflhe soliware is modifl<'d by someone ebe anJ p"sS<..,j on. we
w~nt
its
recipielllS to know lhat what theyha\'e isnollheori~inal.sotllalanyprolllem"introJue<'Jb)'oth<·rswilI not
",lledon the original aUlhors'reputalions
Finally, all>' fre~ program is lhreatened constantly by sohware palent), We wish to amid the danger lhat
redistributorsofatieeprogralllwill indi\'iJuallyobtainpat<:nlli~'ens,'S,inefl"eclmakingtheprogram propri-
etmy. To pr~vem this, we ha~'e made il etear thaI .IIlY patenl mUSl be lieellseJ lvre\"e')'on<:'ti fr<:e usc or not
licensed 31 all
rhe prceiS<." terllls and conditions lor<:opying,dislribulion
~nd
modification folio".
GNU GENERAL PUBLlC LlCt:NSE
TERMS ANI> CO;\,'I)I1'IONS FOR COP\'ING.
DISTRIBUTION AND ,\IODIFICATION
o This Licen>e applies In any program or other work which cOlllains a notice placed by the
~'opyright
holder
saying it may be distribUled unJ"r th~' terms of this Gener;')1 Public Licen,e The "I'rogram", helo\\', refers to
<Iny)uch progralll or work. and a "wnrk IxIsedon the Program"
nwans either the I'rogr"ull
("anyd~'ril'alil'<'work
under copyright law: thaI is tu say. a "ork<:ontaining
Ih~"
I'rogram or a portion of i1. eith,;r ~'~rbmim or \\ ith modillcalion, andlor Ir~nsbted into another language
(Ikrcinaller,translatinnisincludedwithoutlimitationinthetcrm"modillcmion".1 Each liccnsee is
addressl."das"you"
Activilicsotherthancopying.dislribution~ndmodifocationarenotcovcredby this ticcnsc: they arc outside
its scope. The
~cl
of running the Progr"m is not restricted, and the output from lhe Program is co\"er.:d only
ifits contents eonstilute a work based on the Program \independelll 0fhavingbecn madc by running the Pro·
gram), Whetberthat is true depends on what the Program docs
I, You may copy and distribute \'erhatim copies 01 the Program'ssou ree code as you receiv<' it,inany
m~dium.providcdthatyouconspicuouslyandapproprialelypuhlish on each copy an approprialeeopyright
notiee and Jiselaimer of ",arranty: keepintacl all thenoticesthmrc1cr to this License and 10 the absence of
any warranty: and gi\e any othcr n. . ... , ipientsofthe Program a copy Oflhis Licensc along with lhe I'rogram.
You may
~'hargc
a fee lor Ihe physical "et 01 transferring a copy. and you may 31 your oplion offer warranty
protection in
e~changc
fora fl."C
2 You may modify your copy or copies ofthl' Program or any portion of it, lbus lorming a work based 011
the
Program,andcopyanddistributesuchmoditicationsorworkunJerIhelerm)ofSection labove.proviJed
thaI you also meel all of these conditions
al You mUtit ealiSC th<' modified files to carry prominmt notices stming that you changed lhe files and the
date of any change.
b) You must c~use any work thm you dislribute or pllblish, thm in whole or in part comains or is deri.'ed
tromlhc Programoranypanthcreof.tohelicenscd"sawholeatnochargctoallthirJ parties underlhc
tmnsofthisLiccnS<.'
c) II
th~
modilied pmgram normally rcads commands interaeliwly when run, you must cause iI, when
started running lor such interacti\'<'uS<.' inthemostordinaryway,toprimordisplayanannouncelllem incIud-
ingan appropriat<' copyright notice and a noticclhatlhere is no warramy torelsc, saying lhm you provide a
"arranty) and thaI users may redistribUle the program underlhesecondillons, and lelli nglheuscrhowto
\'iewaeopyoflhisLieense (E~eeplion iflhe Prt)gram;lselfis int<"raClil'e bUl does not normally prim such
an announ<:em~nL your work IxIs~d on the I'rogram is not required 10 print an announ<'emen!.)
These requirements apply
to
lhe modified work as a whole. Ifidentitiable sections of that wnrk are not
d~ri\'~d from the Pmgram, anJ <:an he r~a"mably <'onsidered illdcp.:ndcnt and s<:parate ",orks in themseh'es,
then this License, and ilS terms, do nOl apply 10 those sections when youdislributethemasscparateworks
Ilut whcn you diSlrillute the same sc<:tions as part of" wholc which is a work bascdon the Program. thcdis·
trillulion of the whole must he on the terms of this Lie~nse, "hosc permissions lor other licensees exlend to
the <:ntire \\hole.and thus to each and eH'ry part regardless of who wrotcit.
Thus, it is not the intent ofthiss<:ction to claim rights nr eont,·st y ourrightstowork,,-rittenenti~lyhyyou:
rather. lh<' intent is
lo<'~ereiS<.'
thc right
to
control the dislribUlion ofderi\'ali\'e or collecli\'e \\'orks lxlsed on
the Program
In addition, mere aggregation of anolher \\OrK not based on the Program with the I'rogram (or with a work
I>ased on the I'rogram) on a \'olul1le ofaslorageordistribulion medium Jocsnot bring th<: other work unJer
lh,' "'-"ope Oflhis Lic~nse.
3. You may <'opy and distribute th<' Program (ora work based on it,unde rSection2)inobjeclcodeore~e·
cUlable 10nn under the terms of Seclions I ,lnd 2 abo\c pro\'id~d Ihat you also do onc ofthc follo"'ing'
aJ Accompany it with
the
<'omplete corresponding machine-re'ldab
Ie
source code. which mliSt hediSlrib-
uwd under the terms ofS~"Ctions I and 2 above on a medium cus10marily used for soHware interehaoge: or,
1» An-omp.lny it with a \\'rilten olTcr, \'alid tor at least three years. to gi\e aoy IhirJ pm'y, tora <:harge n,'
more than your eoslofphysically perlorming source diSlribution, a eomplct<: machin~-readableeopY(lrthe
corresponding source code, to be diwibut<:d unJ<:r the temlS orSeet;ons I and 2 ahowon a medium CUSlom-
arily oscd lorsoft\\ar<' interchang<': or.
c) A,'cump"ny ilwith the intormation you reeei\'cd aSlO th<" offer10 dislribute corresponding source code.
(Thisaltemati\'e is allowed only ror noncommercial distribulion and only if you recehed tile program in
objccl cod.. or <:H"Cutable form with such al1off<"r, in accord wilh Subscction baho\e.)
[11<: ,our~'c <:ode lor a "'ork mean) the prefern.xl form oflhe work for making modifications 10 it. For an ~~e­
elltable work,complele source code means all Ihe souree code for all modu les it contains, plus any asso<:ialed
interfacedctinition tiles, plus the seripb used to control compilatioo and
installationoflhce~ecu13ble.
How'-
e\"er,asaspecial e.\ceplion.th<'sourn"<:odcJistributednl."CdnOlincilideanythingthatisnormallydislribuled
(in cither souree or hinary loml) Wilh the major components (compiler, kernel. and so on) of the operaling
system on "'hkh lhe
c~<'Culalllc
runs. unless that eompon<'nt itself accompanies lhe
c~ecutab1c
Ifdistributionore~ecutableorobjl.'Ctcodeismadebyotl"cringaccess to copy from adesignaled plaee,lhen
otl"cring equi\'alent access to copy the source code trum Ille same plaeeeountsas
diSlrihution of the souree eoJe, even lhough lhird parties are not compelied 10 copy the source along with the
objl.'l.·tcode.
~. You may nOl copy, modify, sublicense, or dislribute the Program e~eept as e~pres)ly pro\'ided unJ<:r lhis
License. Any aHempl otherwise to copy, modify, slllllicense or distribut~ the Program is \'oid, and will auto-
matically lerminat<: your righh under this Li,·ensc. Howe\"er. partieswbo have rcceived copies, or rights,
from)'ou under this License will nOl have lheir lieens<:s krminat<:d so long as su<:h partics remain in full
compliance
6, Each time you redistriblltelhe I'rogram (or any work based on the Program),thcreeipienlautomatically
rcc~ivesa license from lheoriginal licensor to copy, distribule or modify the I'rogmm subj<:ct to these krms
andcondilions. You maynol imposcany further rcstrictions on the reeipients'oereise ofth<" righls granted
herein. You 3rennt respnn)ible fi>r enforl'ing compliance by tllird parties tot his License
7.lf,asaeonS<.'l.Iucnceofacourtjudgmemoraltegatiollofpmentinfring<'mentorforanyotherrcason(not
limiled 10 patent issues), conditions arc imposed on you (whether by court urder, agrc<:ment or Olh~rwise)
that contradict the conditions oflhis License,lhcy do not ~.~cusc you from lhe conditions Oflhis License, If
you cannot distributcso as to s.ltisfy simullaneOlisly yourobligationsunderthisLicense'andanyotherpcrti-
nentobligations,thenasaeonsequenceyou
may nOl dislribule tile I'rogram at all, Fore~alnplc, if a patent Iicen>e would not permil royalty-fn;e redistri-
bUlionoflhe Program by all lhose "'ho rec<"i\'c copies directly or indirel'lly thmllghyou, then lheonly w"y
youcouldsatisfyhoth ilandlhis License would bc10fefraill entirely from distribution of the Program
Ifany portion ofthisseetion is hcldinvalid orull<:ntorecable under any particular cireumslanee, thebalan,'e
oflheseclionisintendedloapplyandlheSL"Ctionasawholcisinlendedtoapplyinothereireumslances
11 is notlhe purpose of this Sl'Ction to induce you to infringe any patentsorotherprop.:rty right e1aimsorto
contest validily of any such claims: this S<."Ction haslbe solc purpose 0fproleclingth.:
integrity of the free )(>ftware distribution syStem, which is implemented by public license practices. Many
pcoplc ha\'e made generous conlTibulions 10 the "ide rnnge of softwar.: distribut<'dthrough that system in
relianceonconsislentappliealionofthatsyslem;itisuplotheauthor/donor to decide ifheorshe is willin!.' 10
distribute snftware through any other systcm anda li<:ensee<·"nn(>[imposcth"tl"hoice
ThisS<."Ction is intended 10 make thorougbly clear what is oclieved to he a conscquenee of the reSl of this
License.
8. If the distribulion andlor use of the Program ;srestricteJ in eenaincoulllri~scitherby palellls or hycopy-
righteJinterfaces,tbeoriginal<:opyrighllloIJerwhoplaceslllet'rogramunderthisLicensemayaddan
e\plieitgcographiealdistrihulionlimitation<"~c1udingthoseeoulllrics.
so thaI distribulion isp<:rminedonl)
inoramongcoulllriesnolthuse~c1uded,
In such case, this Licen>eincorporatl.'Slhe limilmionas if"ritten in
the body of this Licens~.
Q. The Free Software Foundation may publish rC\ised andlor new \'ersionsofthc Gencral Public License
Irom time 10 lime. Suell new vcp;ions "ill he simil"r in spirillO the pres~1ll ,"ersi"n, but mayditTer in detail
to "ddress new prollkms or coneems
Each vep.;ion is gi\Cn a diSlinguishing I'ersion number. IflheProgramspecitiesal'ersiol1numheroflllis
Lic<'nse which applics to it and "any Imer version"',you ha\'c the opt ion offollow'ing the tams and eonditiollS
eitheroflhat\"ersionorofanylaterl'ersionpublish<"dbytheFrceSoftwar~Foundation.
Iflhel-'rogramdocs
notsp.:eilya\·ersionnumocrofthisLicense,youma)'ehooseanyversionevcrpublisheJ by the Fre<: Soh-
wart: FounJation.
10, If you wish 10 incorporale partsoftbe Program into othcr free programs WhOSl' distriholioneonditions
arediffer<:m,writetotheauthortoaskforpcrmission. For software which iscopyrighledbylhe Free Soft-
ware Foundation, write to lhe Free Softw"re Foundation; we sometimes make e\ceptions lorthis, Ourdee;-
sion will he guided hytbelwogoalsofprescrvingthefreeSlatusofall d<:ri\atil'es of our free sotlwarcand of
promolinglbe sharing,md reuse ofsol\w;ue generally.
NO WARRANTY
II. BECAUSE THE PROGRAM IS LICENSED FREE OF CHARGE, THERE IS NO WARRANTY FOR
nlE PROGRAM. TO THE EXTENT pERMlnED BY APPLICABLE tAW EXCErT WHEN OTHER-
WISE ST,\TED IN WRITING TIlE COPYRIGHT IIOLDERS ANDIOR OTHER PARTIES PROVIDE
THE PROGRAM "AS IS" WITI·IOUT WARRANTY OF ANY KIND, EITHER EXI'RESSEDOR
IMPLlED,INCLUDING BUT NOT UMITED TO. nlE IMt'UED WARRANTIES OF MERCHANT-
ABILITY AND FITNESS FOR A PARTICULAR PURPOSE. TIlE ENTIRE RISK AS TOTIIE QUALITY
AND PERFORMANCE OF THE PROGRAM IS WITH YOU. SHOULD TIlE PROGRAM PROVE
DEFECTIVE. YOU ASSUME THE COST OF ALL NECESSARY SERVICING REPAIR OR CORREC-
TION.
12.IN NO EVENT UNl.ESS REQUII<ED IlY APPLICABLE LAW OR AGREED TO IN WI<ITlNG
WILL ANY COPYRIGHT HOLDER, OR ANY OTHER PARTY WHO MAY MODIFY ANDIOR REDIS-
mll3UTE THE I'ROGRAM AS PERMnTED ABOVE, BE LIABLE TO YOU FOR DAMAGES,
INCLUDING ANY GENERAL. SPECIAL. INCIDENTAL OR CONSEQUENTIAL DAMAGES ARISING
OUT OF THE USE OR INABIUTY TO USE THE PROGRAM (INCLUDING BUT NOT LIMITED TO
LOSS OF DATA OR DATA BEING RENDERED INACCURATE OR LOSSES SUSTAINEI) BY YOU OR
I"HIRD PARTIES OR A FAILURE OF TIlE PROGRMI TO OPERATE WITH ANY OTlIER PRO-
GRAMS), [VEN II' SUCH IIOLDER OR OTlIJ:R PARTY lIAS 1l[J:N ADVISl:D OFTII[ POSSIBILITY
OF SUCH DAMAGES
ENIl OF TERMS ANI> CONDITIONS
Ilow 10 Appl}'
Th~e
Terms to Your New Programs
Ifyoud<:vdopan<:"'prt'gr:[(n.andyuuwaOlitlObcuflhegre~t<.'stp ..ssiblcus<: 10 the puhlie. Ih,: ocst way
toaehie\'Cthis is to make it tiec software which e\'eryonecan redistr ibuleandchangeunJerlheselerms.
1'0 do so. attach the following notiees to the program. 11 is safest tuaHaeh them tOlhe startof,"aeh suurec
lile to most effecti\'cly con\ey lhe exclusion of warranty; and cach file should havcat least the "copyright"
line "nd a pointer to where Ihe full nolice i~ found
<one line 10 gi\e the progr:lm's name and a
briefid~a
of what il docs,> Copyright tC) <)'ear> <name of
author>
This program is fn."C software: )·ou can redislributc it and/or modify it under the terms oflhe GNU Geneml
Public Li<:ensc as publishl.xl hy til,' F",~Sotiwa~ Foundation: eith<'r version 2 oflhe License. or (at your
option) any laler \'ersion
This program is distribuled in the Ilope that it will he us<:ful, but WITHOUT ANY WARRANTY; without
ewn th.. , implied warranly ofMERCHi\1\'TABILITY or FITNESS FOR A PARTICULAR PURPOSE. Sl."<:
tile GNU General Public License for more details.
You should have fL"C<.'ived a copy of the GNU G<'neral Public Lieensc along with this program; ifnot, write
totheFrceSoliwarc Foundation, Inc,,51 Franklin Street, Fitlll F1uor,llos1On, MA02110-1301,USA.
Alsoaddinfortnationonhowlo<'ontactyouhyeleC1ronicandp~pcrmail.
The hypothelical commands 'show w' and 'show c' should show lh.: appropriate parts ollh<: General Public
License. Of course. lhe commanJs you usc m"y oc e"lIed something other than' show w' and' show' c': the)'
<'ould e\'~n Ix mouse-clicks or menu items__ whatever suits your program.
You sholiid also gel youremployer(ifyou \\'orkasa programmcr)oryou rschool.ifany,losigna"copyright
diselaim<:"'fortheprogr"m,ifn<'<:es"'ry.Hereisas"mple:"herthenames
Yoyodyne, Inc., hereby diselaims all copyrighl interest inthc program
'Gnomovision' (which makes passes at eompilers) w'rinen by James llaeker.
<sign"turcoflyCuon>, I April198Q
TyCoon, PresidenlofVice
rhisGcneral Puhlic License docs n01 pcrmil incorporating your program into proprielary programs, Ifyoor
progr"m isa)ubroutine library. you may consider il more useflll topermil linking proprielary appli<:ations
with tile lillrary. If this is what you wam to do, usc the GNU Library General Public License inst~'ad of this
Licensc
G1'o'U LESSER GENERAL PUBLIC UCENSE
\'usion2,I,Fcbruar)'1999
CopyrighttC) IQQI,IQ99FreeSotiwarel'oundalion,Ine
51 Franklin Strwt, Fiflh Fluor.lloslon.MA02110-130I,USA
£\'c')'one ispcnnitt,'<1 to copy and distribut,'verhmim copies of this license docu01ent, but changing it iSllOl
atlo\\ed
IThis is the flrsl rc1caS<.x1 \ersion of
the
tesscrGPL. 11 also counts as lhe successor oflhe GNU Library rub-
hcLicense.\'ersion2,hencclheversionnumber2.1,]
The licenses lor most soltware are designed 10 take a"ay your lice
domtoshar~andehangeil.
Ilycontrasl,
the GNU General Pulllic Licenses arc imended to guarantee your f".... " dom to shar.: and change Iree SOl1",,,re-
-to make sure lhe sot'iware is free for all it) users
This license, the lesser General Public License, applies to some spcciallydesignated soft"arepaekages-
lypieally Iibraries--of!he Fr~<: Softwar~ Found"tion and other authors who decide to usc it. You can usc it
loo,but we suggest you firsl thinkcarefullyahoutwhetherthislieenseorlheordinaryGencral Public Lieensc
is lheocllerslrategyto use inany partieul"rcase. has<:don thee~planalionsbelow.
Wben \\'espeak offT<"C sot'iware, we are rcterring to frc<'dom of usc. not price. OurG.:neral Public Licenses
are designed 10 mah' sur<: thm you haw lhe freedom 10 distrihule copies of free sott"3re (and charge for this
scrvice if you wish): Ihatyou reeei\'e source code or can gel it ifyouw"ntil;thalyoueanchangelhesoft-
wareandus~pi~cesofil
in ncw free programs: and lhat you arc informedlhatyoueandothes,'things
1'0 protect yOllrrights. "e need to make r.:striclions lhm forhiddistributors 10 deny you thcse righls or loa,k
you 10 surrcndcr th,'se rights. These reSlrielions translate to certain responsihilities for yo u ifyoudislribute
copicsoflhc library or if you modily it.
For <'xample. if you Jislrillule copies of the lihrary, whelhergratis or fora fce, you musl give lhe recipients
all the rights that w<'gavcyou, You must mak<' sure lhat th"y, 100, recei"e or Can get the souree code, If you
link othereodewiththc library, you must providc complete object liles to the recipients, sOlhal they can
rclink lhem Wilh the lihrary afler making changes to lhe library and recompiling il And you must show them
theS<.'terms so lhey know lheirrights
W~"prolcctyourriglltswilll"two-,tcpll1cllloJ.(II"c<·opyriglllthe library, and (2) we offer you this
licensc, "hich gi\'l.'S you lcgal permission 10 copy. distribule andlor modifylhclibrary
roproteet each distribulor. we want to m"ke it v~ry ekar th"t lhere i) no warranty forlhe free library, Also,
if the library is modified hy s"meonl' else and passed on, the r~cipienlS sllould know lhat what they have is
not lhe originat version, so that lhe original aUlhor's repm;nion will
not
he affected by probkms thm might bc
imroducedhyothers
Finally,soft\\'arepatemsposcaconstamthreatlotbee.xislenceofanyfreeprogram. We wish to make sure
lhataeompanyeannotcfl"cctivclyrestricttheuscrsofafreeprogram by obtaining a restrictive license from a
patemholdcr. -111e~fore,\\cinsislthalanypm<'ntlicenscobtainedfnra"ersionorth~lihra')'musloccon­
sistent with lhe full
fn."<:domofu>espceifi~dinlhislicens<'.
MOSI GNU sottware, including some libraries, is cm~red by the orJinaryGNU General Public Licensc
rhis Iic,'nse, the GNU L,'sser General Public Lie<"nse, applies to cenain designated lihmri<:s, and is quite dif-
tCr.:ntfromlheorJinaryGencral Pubhl' Licensc. We use thislieense lor certain Iibnlries in order to pcrmit
linkinglhose Iihrariesilltonon-frcc programs
When a progr"m i) linked with a library. whdher statically or using a shar~d librJry, the combination oflhe
two is legally spc"king a ,-",mbined work. a d.:ri\'ativc of the originallihrary. The ordinary Genemll'ublic
Licensethereforepernlilssuch linking only if the entir.: combination fits ilS criteria offrecdom. ThcLesser
General Public Li<:~ns<:permils more la~ <:Titeri" lor linking other code with the library
We call this licenselhe "Lesscr" General
PublieLieens<"bceauseitJoesLcsstoprotl'etth~uscr'sfreedom
Ihan the ordinary General Publi<: Licen,~. It also provid~s otller free sofl\\'are developers L<'Ss ofan advan·
lage owr competing non-fre" programs. Thes~ disad"ant"ges are the reason we use the orJinary General
Public Licensc for many libraries. Howel'er, thc Lesser license pro\'id<"s advan13ges in certaio spceia leir·
"'umstane~,
For example, on rare occasions, lhere may be a special ne<."d to encourage the widest po>sibk usc of a e<:r-
lain library, so lllat it bewmes a de-fa<;lo Slandard, TO;tchie"e tllis, non-ffL"C programs must be allowed to
use the library. Amorefrequenl,'aseisth"talrcclibrarydocslhesamejobaswiJclyuscd non-I"m: libraries.
In thiscasc. ther.: is link to gain by limitingth.: Iree library 10 frce suftware only, so W<' usc the
L~sscrGen­
eralPublieLicense
In nlhercases, permission 10 use a [Xtrticular libra')'in non-lrl."Cprograms enables a gn'ater numhcr of peo-
pie to use a large body offn."<: sotiwarl,'. For<:.~ample, permission to use llle GNU C Libr"ry in non-fn."C pro-
grams enabks mally more people to usc the whole GNU operating system, as well as ils variant, lhe GNUI
Linu\operalingsyslem.