Re: [Fwd: Re: Bug#304316: section non-free/doc]
>Legally, I can't modify a glibc API and then paste my revisions into
>the glibc documentation, because my changes truly are a work derived
>from GPL material and can't be amalgamated with GFDL material. I
You are totally missing the point. Even if an API were copyrightable
(it's not), even if the description of an API were a derived work
(I doubt this), you as the author of the changes can license them any
way you want.