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GNU LESSER GENERAL PUBLIC LICENSE
Version 2.1, Fe b r u ary 1999
Copyright © 1991, 1999 Free Soft w are Fo u ndation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
E v eryone is permitted to copy and distri bu te v er b atim copies of this license doc u ment, bu t changing it is not allo w ed.
[This is the first released v ersion of the Lesser GPL. It also co u nts as the s u ccessor of the G N U Li b rary P ub lic License, v ersion 2, hence the v ersion n u m b er 2.1.]
Preamble
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intended to g u arantee yo u r freedom to share and change free soft w are— to
make s u re the soft w are is free for all its u sers.
This license, the Lesser General P ub lic License, applies to some specially
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Fo u ndation and other a u thors w ho decide to u se it. Yo u can u se it too, bu t w e
s u ggest yo u first think caref u lly a b o u t w hether this license or the ordinary
General P ub lic License is the b etter strategy to u se in any partic u lar case,
b ased on the explanations b elo w .
W hen w e speak of free soft w are, w e are referring to freedom of u se, not price.
O u r General P ub lic Licenses are designed to make s u re that yo u ha v e the
freedom to distri bu te copies of free soft w are (and charge for this ser v ice if yo u
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To protect yo u r rights, w e need to make restrictions that for b id distri bu tors to
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linking other code w ith the li b rary.
W e call this license the “Lesser” General P ub lic License b eca u se it does Less
to protect the u ser’s freedom than the ordinary General P ub lic License. It also
pro v ides other free soft w are de v elopers Less of an ad v antage o v er competing
non-free programs. These disad v antages are the reason w e u se the ordinary
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li b rary to free soft w are only, so w e u se the Lesser General P ub lic License.
In other cases, permission to u se a partic u lar li b rary in non-free programs
ena b les a greater n u m b er of people to u se a large b ody of free soft w are. For
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v ariant, the G N U/Lin u x operating system.
Altho u gh the Lesser General P ub lic License is Less protecti v e of the u sers’
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to r u n.
GNU LESSER GENERAL PUBLIC LICENSE
TERMS AND CONDITIONS FOR COPYING,
DISTRIBUTION AND MODIFICATION
0.
This License Agreement applies to any soft w are li b rary or other program
w hich contains a notice placed b y the copyright holder or other a u thorized
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