GNU LESSER GENERAL PUBLIC 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.]
Preamble
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 use,
not price. Our General Public Licenses are designed to make sure that
you have the freedom to distribute copies of free software (and charge
for this service if you wish); that you receive source code or can get
it if you want it; that you can change the software and use pieces of
it in new free programs; and that you are informed that you can do
these things.
To protect your rights, we need to make restrictions that forbid
distributors to deny you these rights or to ask you to surrender these
rights. These restrictions translate to certain responsibilities for
you if you distribute copies of the library or if you modify it.
For example, if you distribute copies of the library, whether gratis
or for a fee, you must give the recipients all the rights that we gave
you. You must make sure that they, too, receive or can get the source
code. If you link other code with the library, you must provide
complete object files to the recipients, so that they can relink them
with the library after making changes to the library and recompiling
it. And you must show them these terms so they know their rights.
We protect your rights with a two-step method: (1) we copyright the
library, and (2) we offer you this license, which gives you legal
permission to copy, distribute and/or modify the library.
To protect each distributor, we want to make it very clear that
there is no warranty for the free library. Also, if the library is
modified by someone else and passed on, the recipients should know
that what they have is not the original version, so that the original
author's reputation will not be affected by problems that might be
introduced by others.
Finally, software patents pose a constant threat to the existence of
any free program. We wish to make sure that a company cannot
effectively restrict the users of a free program by obtaining a
restrictive license from a patent holder. Therefore, we insist that
any patent license obtained for a version of the library must be
consistent with the full freedom of use specified in this license.
Most GNU software, including some libraries, is covered by the
ordinary GNU General Public License. This license, the GNU Lesser
General Public License, applies to certain designated libraries, and
is quite different from the ordinary General Public License. We use
this license for certain libraries in order to permit linking those
libraries into non-free programs.
When a program is linked with a library, whether statically or using
a shared library, the combination of the two is legally speaking a
combined work, a derivative of the original library. The ordinary
General Public License therefore permits such linking only if the
entire combination fits 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 modified version of the Library.
The precise terms and conditions for copying, distribution and
modification 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 modifications and/or translated
straightforwardly into another language. (Hereinafter, translation is
included without limitation in the term "modification".)
"Source code" for a work means the preferred form of the work for
making modifications to it. For a library, complete source code means
all the source code for all modules it contains, plus any associated
interface definition files, plus the scripts used to control compilation
and installation of the library.
Activities other than copying, distribution and modification 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

风月歌
- 粉丝: 2058
- 资源: 5161
最新资源
- MATLAB在风力发电系统中的低电压穿越策略:串电阻技术的应用与性能分析,MATLAB下的风力发电系统低电压穿越策略:串电阻应用与优化方案,MATLAB 风力发电系统低电压穿越-串电阻策略 ,MAT
- 《同步磁阻电机方波注入及切换策略的数学模型研究》,基于同步磁阻电机方波注入的优化策略及动态切换方案模型,同步磁阻电机方波注入方案以及切方案模型 ,同步磁阻电机; 方波注入方案; 切换方案模型; 核心关
- 西门子PLC博途三种自动流程程序写法详解:SCL Case语录与梯形图编程实例,视频辅助教学,西门子PLC博途三种自动流程程序写法详解:SCL Case语录与梯形图编程实例,附视频解说,轻松掌握!,西
- 三菱FX3U PLC全功能模拟器:虚拟串口通信与高速脉冲模拟高效实现省时调试,三菱FX3U PLC全功能模拟器:虚拟串口通信,模拟实体运行,节省调试时间,三菱FX3UFX2NFX1N PLC 模拟器模
- 基于S7-200 PLC的空调与空压机变频节能控制:图解梯形图编程与工程应用实现,基于S7-200 PLC的空调与空压机变频节能控制:梯形图程序、接线图与组态画面详解,S7-200 MCGS 基于S7
- 基于主从博弈与需求响应的智能楼宇群协同能量管理策略与MATLAB实现,基于主从博弈与需求响应的智能楼宇群协同能量管理策略(Matlab软件实现),关键词:主从博弈 需求响应 能量管理 主题:含
- 2025 DeepSeek+7大热点+全套提示词零基础入门-100页.pdf
- 地下水流模拟:达西与pde方程的comSol模型与非均质孔隙率随机分布与韦伯分布案例详解,地下水流模拟:达西与pde方程的comSol模型与孔隙率非均质分析,1模型简介:使用数值模拟软件comSo
- 基于S7-300 PLC与WinCC的自动售货控制系统设计:梯形图程序、接线图与组态画面详解,基于S7-300 PLC与Wincc构建的自动售货控制系统设计:图纸详解与IO配置及组态展示,基于S7-3
- 基于PLC控制的音乐喷泉组态设计及梯形图程序解析 组态画面展示、接线图原理与IO分配,音乐喷泉组态设计与PLC控制系统:梯形图程序、接线图与IO分配详解,基于PLC音乐喷泉控制系统设计音乐喷泉组态设计
- 基于SSM框架及地图功能的Java物流快递管理系统设计源码
- 秣厉科技 - LabVIEW工具包 - OpenCV 1.1.0.3
- FMC AD9129 DAC模块:高效双通道射频DA芯片,与Xilinx配套,优质资源助力研发之旅,FMC AD9129 DAC模块:与Xilinx开发板配套,双通道射频DA芯片,高性能与便捷开发体验
- 基于TTC和危险系数的风险评估模型在AEB中的实践与Simulink联合仿真解析,基于TTC和危险系数的风险评估模型在AEB中的实践与Simulink底层PID控制探索,AEB基于危险系数,复现lun
- 基于Go、Vue、JavaScript、HTML的医生系统设计源码
- 基于Vue框架的医考辅导资源查询小程序设计源码
资源上传下载、课程学习等过程中有任何疑问或建议,欢迎提出宝贵意见哦~我们会及时处理!
点击此处反馈


