> One view is that GPL does not propagate, because the Guile language does > not link.
This would be a very dangerous interpretation and clearly go against the spirit of the GPL: any proprietary software could use any GPL software if they were written in a language that doesn't link. There is a lot of python code, for example, under the GPL and it would have no protection against being used in proprietary programs. > If Guix’ GPL would propagate, then the GPL2 of libgit2 would propagate > to Guix. Libgit2 defines an exception that it may be linked against programs under any license, and I would consider FFI or whatever Guile uses to interact with the compiled libgit2 library to qualify as linking. I feel like Guix' GPL would propagate, but you could ask licens...@fsf.org what they think about it.
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