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a free library does t he sam e j ob as widely used non- free libraries. I n t his case, t here is lit t le t o gain by lim it ing t he free library t o
free soft ware only, so we use t he Lesser General Public License.
I n ot her cases, perm ission t o use a part icular library in non- free program s enables a great er num ber of people t o use a large body
of free soft ware. For exam ple, perm ission t o use t he GNU C Libr ary in non- free program s enables m any m ore people t o use t he
whole GNU operat ing syst em , as well as it s variant , t he GNU/ Linux operat ing sy st em .
Alt hough t he Lesser General Public License is Less prot ect ive of t he users' freedom , it does ensure t hat t he user of a program t hat
is linked wit h t he Library has t he freedom and t he wherewit hal t o run t hat program using a m odified version of t he Library .
The precise t erm s and condit ions for copying, dist ribut ion and m odificat ion follow. Pay close at t ent ion t o t he difference bet ween a
"wor k based on t he library " and a "wor k t hat uses t he library ". The form er cont ains code derived from t he library , whereas t he
lat t er m ust be com bined wit h t he library in order t o run.
TERMS AND CONDI TI ONS FOR COPYI NG, DI STRI BUTI ON AND MODI FI CATI ON
0 .
This License Agreem ent applies t o any soft ware library or ot h er program which cont ains a not ice placed by t he copyright holder
or ot her aut horized part y saying it m ay be dist ribu t ed under t he t erm s of t his Lesser General Public License ( also called "t h is
License") . Each licensee is addressed as "you" .
A "library " m eans a collect ion of soft ware funct ions and/ or dat a prepared so as t o be convenient ly linked wit h applicat ion program s
( which use som e of t hose funct ions and dat a) t o form execut abl es.
The "Library ", below , refers t o any such sof t ware library or work which has been dist ribut ed under t hese t erm s. A "work based on
t he Library" m eans eit her t he Library or any derivat ive work under copyri ght law: t hat is t o say , a wor k cont aining t he Library or a
port ion of it , eit her verbat im or wit h m odificat ions and/ or t ranslat ed st raight for war dly int o anot her language. ( Hereinaft er,
t ranslat ion is included wit hout lim it at ion in t he t erm "m odificat ion".)
"Source code" for a wor k m eans t he preferred for m of t he wor k for m aking m odificat ions t o it . For a library, com plet e source code
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Act ivit ies ot her t han copying, dist ribut ion and m odificat ion are not covered by t his License; t hey are out side it s scope. The act of
running a program using t he Librar y is not rest rict ed, and out put from such a program is covered only if it s cont ent s const it ut e a
work based on t he Librar y ( independent of t he use of t he Library in a t ool for writ ing it ) . Whet her t hat is t rue depends on what t he
Library does and what t he program t hat uses t he Librar y does.
1 .
You m ay copy and dist ribut e ver bat im copies of t he Library' s com plet e source code as you receive it , in any m edium , provided
t hat you conspicuously and appropriat ely publish on each copy an appropriat e copyright not ice and disclaim er of warrant y; keep
int act all t he not ices t hat refer t o t his License and t o t he absence of any warrant y; and dist ribut e a copy of t his License along wit h
t he Library.
You m ay charge a fee for t he physical act of t ransferring a copy, and you m ay at your opt ion offer warrant y prot ect ion in exchange
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