Sorry, I meant naturally Mr. Reincke, and not Mr. Karsten ;-).
www.martinrinconbotero.com On 22. Sep 2020, 19:30 +0200, Tim McNamara <[email protected]>, wrote: > On Sep 22, 2020, at 10:20 AM, Partitura Organum <[email protected]> > wrote: > > > > Karsten […] 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. > > Calling what amounts to a subroutine does not cause the subroutine to own the > output, which is IMHO all that is being done with "\include oll.ily” (or any > \include commands) so the answer to the question is “no.” One may publish > one’s input file, although the utility of that is questionable except as a > teaching tool, under whatever license one wishes. That may cause a cognitive > conflict with the GPL for some users. One may publish the output of the > application under whatever license one wishes, including standard copyright > within the jurisdiction where one lives. Were the GPL to require creators to > license their output under some specific copyleft arrangement, few people > would use any GPL software. And indeed, there may be people/entities that > refuse to use free software due to that misunderstanding. Lilypond and/or the > GPL does not own the user's input or output files- any more than Microsoft > owns all documents written in Word- as that would of course contravene the > notion of freedom in free software. > > I am curious- is there a parallel discussion among LaTeX users? I’ve never > used LaTeX nor been part of discussions in the that community, but the > operating similarities are strong (a text input file with formatting markup > producing an output file such as a PDF). > > If one creates a word processing document using a font, whether copyleft or > copyright, does the document publishing have to adhere to the licensing of > the font? Of course not. > > >
