Re: Future of openLilyLib

[Partitura Organum]

On 22-9-2020 15:49, Carl Sorensen wrote:

Since the music code is not included in the pdf output, the pdf output is not subject to GPL.

The fact, that Mr. Bernard apparently does not want to realize point 5., puzzles me.

I remain respectfully yours

Karsten Reincke

The inability to recognize the difference between a program and the output of a program puzzles me.

Sincerely,

Carl

    This is a bit unfair. Karsten did not mention the pdf- or
    midi-files, he mentioned the lilypond-files: "OpenLilyLib is
    licensed under the GPL. Thus, the copyleft effect forces that all
    Lilypond files which include OpenLilyLib files, have also to be
    distributed under the terms of the GPL.". Thus, if I use OLL in my
    lilypond and I want to make my lilypond files public, I have to do
    so under the GPL v3 license. 
    Or so Karsten states.
    Secion 5 of GPL v3 does seem to imply this. The question here is
    whether typing something like "include oll.ily" in your own ly-file
    makes your ly-file a derivative work of OpenLilyLib. If "yes" the
    GPL v3 license demands you license your ly-file as GPL as well if
    you ever publish it. If "no", well then it is for you to decide
    which license works best for you.
    
    A nice wrapup from from a softwaredevelopemnt point of view can be
    read here:
https://tech.popdata.org/the-gpl-license-and-linking-still-unclear-after-30-years/
    
    Regards,
    Auke