What is meant by an LGPL software Licence?
The GNU Lesser General Public License (LGPL) is a free-software license published by the Free Software Foundation (FSF). For proprietary software, code under the LGPL is usually used in the form of a shared library, so that there is a clear separation between the proprietary and LGPL components.
What is the main difference between the GNU General Public License and the GNU Lesser General Public License?
GPL stands for General Public License. LGPL is like an amended version of GPL. It stands for Lesser General Public License. It limits your requirement to provide some of your code, but you still are required to divulge the modifications that you implement.
Can I use Qt for commercial software?
Qt for Device Creation is a product available only under a commercial license. This allows you to, for example, control your device’s user experience, and build proprietary functionality on top of Qt and to lock down your device.
Can I use LGPL code in commercial software?
Software under the GPL may be run for all purposes, including commercial purposes and even as a tool for creating proprietary software, such as when using GPL-licensed compilers. Users or companies who distribute GPL-licensed works (e.g. software), may charge a fee for copies or give them free of charge.
What is meant by copyleft?
Copyleft is a general method for making a program (or other work) free (in the sense of freedom, not “zero price”), and requiring all modified and extended versions of the program to be free as well. So instead of putting GNU software in the public domain, we “copyleft” it.
What was the compromise between the GPL and the LGPL?
The LGPL was developed as a compromise between the strong copyleft of the GNU General Public License (GPL) and more permissive licenses such as the BSD licenses and the MIT License.
What’s the difference between LGPLv2.1 and L GPLv3?
LGPLv2.1 is an older version and not recommended by the Free Software Foundation for new projects anymore. Both licenses have the same intention, namely to protect the freedom of users to use and modify the software licensed under LGPL. LGPLv3 makes this intention very explicit.
What does the word Lesser mean in the LGPL?
The word “Lesser” in the title shows that the LGPL does not guarantee the end user’s complete freedom in the use of software; it only guarantees the freedom of modification for components licensed under the LGPL, but not for any proprietary components.
Is the GNU LGPL a weak copyleft license?
The GNU Lesser General Public License (“GNU LGPL”) was designed as a solution for such situations. The Lesser General Public License is sometimes described as a “weak copyleft” license, because code licensed under LGPL’s terms can be combined with code under non-free licenses, and is sometimes used in that fashion.
