Re: ditaa --svg option is missing when building doc/src/sgml/images

Hi,

Thank you for looking into this!

On Fri, 19 Dec 2025 at 18:39, Paul A Jungwirth
<pj@illuminatedcomputing.com> wrote:
>
> On Fri, Dec 19, 2025 at 5:52 AM Nazir Bilal Yavuz <byavuz81@gmail.com> wrote:
> >
> > I am working on writing a meson.build file for doc/src/sgml/images,
> > but I ran into an issue when Meson tries to invoke `ditaa`:
> >
> > ...
> >
> > This issue also happens on autoconf builds:
> >
> > ...
> >
> > It appears that the --svg option was introduced in ditaa v0.11.0 [1],
> > while Debian ships ditaa v0.10.x [2], which does not support this
> > option.
> >
> > Additionally, doc/src/sgml/images/README mentions: Ditaa
> > (http://ditaa.sourceforge.net/) but this website has an even older
> > version, v0.9.*.
> >
> > If I am not missing anything, what do you think about updating this
> > URL with the github URL [3]?
> >
> > [1] https://github.com/stathissideris/ditaa
> > [2] https://packages.debian.org/sid/ditaa
>
> Nice archeology! I ran into this too when I was adding the images for
> temporal PKs & FKs. It worked on a Mac with the brew ditaa, but not on
> debian, until I installed it from github. Changing the link seems like
> a good solution.

It looks like brew ditaa is also v0.11.0 [1].

After thinking a bit more, I think it would be better to add version
requirement information too; something like:

-- Ditaa (http://ditaa.sourceforge.net/)
+- Ditaa (https://github.com/stathissideris/ditaa) (version 0.11.0 or
+  later)

What do you think?

[1] https://formulae.brew.sh/formula/ditaa

--
Regards,
Nazir Bilal Yavuz
Microsoft