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The hypothetical commands 'show w' and 'show c' should show
the appropriate parts of the General Public License. Of course,
the commands you use may be called something other than
'show w' and 'show c'; they could even be mouse-clicks or
menu items--whatever suits your program.
You should also get your employer (if you work as a
programmer) or your school, if any, to sign a "copyright
disclaimer" for the program, if necessary. Here is a sample; alter
the names:
Yoyodyne, Inc., hereby disclaims all copyright interest in the
program 'Gnomovision' (which makes passes at compilers)
written by James Hacker.
<signature of Ty Coon>, 1 April 1989
Ty Coon, President of Vice
This General Public License does not permit incorporating your
program into proprietary programs. If your program is a
subroutine library, you may consider it more useful to permit
linking proprietary applications with the library. If this is what
you want to do, use the GNU Lesser General Public License
instead of this License.
Version 2.1, February 1999
Copyright (C) 1991, 1999 Free Software Foundation, Inc.
51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
Everyone is permitted to copy and distribute verbatim copies of
this license document, but changing it is not allowed.
[This is the first released version of the Lesser GPL. It also
counts as the successor of the GNU Library Public License,
version 2, hence the version number 2.1.]
The licenses for most software are designed to take away your
freedom to share and change it. By contrast, the GNU General
Public Licenses are intended to guarantee your freedom to share
and change free software--to make sure the software is free for
all its users.
This license, the Lesser General Public License, applies to some
specially designated software packages--typically libraries--of
the Free Software Foundation and other authors who decide to
use it. You can use it too, but we suggest you first think carefully
about whether this license or the ordinary General Public
License is the better strategy to use in any particular case, based
on the explanations below.
When we speak of free software, we are referring to freedom of
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To protect your rights, we need to make restrictions that forbid
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We protect your rights with a two-step method: (1) we copyright
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The ordinary General Public License therefore permits such
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The Lesser General Public License permits more lax criteria for
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We call this license the "Lesser" General Public License because
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