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I'm not clear on what you are trying to say. Naturally, the GPL only applies when distributing GPL'd code, not when it's used solely privately. The license clea

I'm not clear on what you are trying to say. Naturally, the GPL only applies when distributing GPL'd code, not when it's used solely privately. The license clearly states that all parts of the "work based on the Program" (anything derived from GPL code) have to be licensed under GPL. The FSF has always asserted that a derived work includes anything that statically or dynamically links to GPL'd code, although the term was controversial and v3 now mentions linking explicitly. So, when the section above talks about "the whole of the work and all its parts", that includes files that are by themselves not GPL'd. These have to be distributed under GPL as well if you want to include them.

belorn 11y ago
The distributor must apply the license to the entire work, but individual parts can always be licensed under different license. Say for example that you created some GCC code and put that under MIT. When distributing GCC, GCC as the "entire work" will be GPLv3 which also then apply to the MIT part. However, the MIT license will also apply to that part, must be kept in every copy, and you could take that MIT part and put that into LLVM and GPLv3 would not suddenly impact LLVM. When modifying a GPLv3 project, your own additions can always be any GPLv3 compatible license (as I stated above). In most cases that would not make much sense but in a few cases, say in a compiler, it might make sense if you want to use that code in several project with different or even proprietary licenses. Nothing in GPLv3 prevents this.