Paul Jakma <p...@jakma.org> writes: > On Wed, 20 Mar 2019, Ole Streicher wrote: > >> Those files do not use GPL code; they just refer to it. No line of that >> code was originated in GPL licensed code. > > Ah, you're in the "copyright only protects literal copying" camp, and > you don't acknowledge the concept of derived works.
In the GPL case, it protects /modified/ code copies. | 2. You may modify your copy or copies of the Program or any portion | of it, thus forming a work based on the Program, and copy and [...] The example I brought, was written from scratch, it was therefore not a "modified copy". > Copyright gives authors of works not just the right not to just > control literal copying, but also a controlling right in any > adaptations of their work (amongst other things). My example #include <log.h> int main(void) { zlog_rotate(); return 0; } is not an adaption of any GPL code. It is fully written by my own. Therefore, I don't need to respect the GPL to distribute it. The same is true for the FRR code as far as I have seen it. Otherwise you must point to a certain code file and prove that it contains code which is a modified copy of an GPLed file. Which you not did yet. Best Ole