Eli Zaretskii <eliz@gnu.org> writes:

> That's a different problem; I guess something is missing in your
> installation.

That was my first thought as well, but I have tried both on Fedora 25
and Debian 8, with the full TeXlive distribution installed, and I get
the exact same error. 

> I suggest to ask this on the appropriate TeX forum.  Sorry, I don't
> know where that is.  Or maybe try on bug-texinfo@gnu.org, there are a
> few guys there who know TeX well.

I'll try that, thanks.

Cheers,
Nico