Linux kernel licensing rules — The Linux Kernel documentation

GNU General Public License - Simple English Wikipedia, the The GNU General Public License (GPL) is a computer software copyleft license.This license lets the user of the software use a program in many of the same ways as if it were public domain.They can use it, change it, and copy it. They can also sell or give away copies of … The differences between the GPL, LGPL and the BSD | FOSSwire GNU General Public Licence. The GNU General Public Licence, or GPL as it's often called, is the most popular free software licence and it's used by many different projects, including the Linux kernel, the GNU tools and literally hundreds of others. You can find the legal text for the GPL here, but here's a quick summary of what it means. GNU General Public License v2.0 (GPL-2.0) Explained in By contrast, the GNU General Public License is intended to guarantee your freedom to share and change free software--to make sure the software is free for all its users. This General Public License applies to most of the Free Software Foundation's software and to …

The GPL (v3+) is an Open Source license that, gives you the right to use, copy and modify the code freely. If you distribute your software based on GPLed CGAL data structures, you are obliged to distribute the modifications of CGAL you made, and you are furthermore obliged to distribute the source code of your own software under the GPL.

Software that includes source code licensed under the GPL inherits the GPL licence. If compiled binaries of software licensed under GPL are distributed, the source code must also be made available by the distributor. These aspects of the licence discourage exploitation, because if a closed sourced software product that includes open source

License —

Since MySQL 4.0, the GPL license for client libraries has led to problems with some other open source projects. For example, the PHP project is not subordinate to GPL, but to another open source license that is considerably more liberal and contains fewer restrictions for commercial applications.