On Sat, Mar 25, 2017 at 06:51:21PM +0100, Ævar Arnfjörð Bjarmason wrote: > In GPLv3 projects only, not GPLv2 projects. The paragraphs you're > quoting all explicitly mention v3 only, so statements like > "incompatible in one direction" only apply to Apache 2 && GPLv3, but > don't at all apply to GPLv2, which is what we're using. It's complicated. It's fair enough to say that the FSF adopts a copyright maximalist position, and by their interpretation, the two licenses are incompatible, and it doesn't matter whether the two pieces of code are linked staticaly, dynamically, or one calls the other over an RPC call. Not everyone agrees with their legal analysis. May I suggest that we not play amateur lawyer on the mailing list, and try to settle this here? Each distribution can make its own decision, which may be based on its legal advice, the local laws and legal precedents in which they operate, etc. And indeed, different distributions have already come to different conclusions with respect to various license compatibility issues. (Examples: dynamically linking GPL programs with OpenSSL libraries under the old license, distributing ZFS modules for Linux, etc.) We don't expect lawyers to debug edge cases in a compiler's code generation. Programmers shouldn't try to parse edge cases in the law, or try to use a soldering iron, unless they have explicit training and expertise to do so. :-) - Ted