Ihor Radchenko <yantar92@gmail.com> writes:

> Looks reasonable.

Thank you for guiding me through, Ihor.  I had some time today, so I
pushed the envelope a bit further, hopefully in the right direction!

> First of all, checking version should probably be controlled by some
> customization. Especially when we export to .texi (which does not
> involve calling makeinfo), not to .info.

I could not figure out how to tell between the two kinds of export.

My attempt, in 'org-texinfo-latex-environment':

(message "filename1: %s" (plist-get info :output-file))
(message "filename2: %s" (plist-get info :texinfo-filename))

I always got the following, not matter what:

filename1: test.texi
filename2: nil

> This customization might be set to 'auto by default, making ox-texinfo
> check makeinfo version.

We now set the customization to 'detect.  If you think 'auto makes for a
better name, for consistency or some other reason, please let me know.

> Parsing version is probably the easiest way. Another alternative is
> trying to run makeinfo on a small test file with math environment and
> checking if it gets exported as expected.

I went for the latter, see 'org-texinfo-supports-math-p' in the attached
patch.  Please take a look.

[From the other thread:]

> The problem is that people may not know this feature exists and should
> be enabled. You still need to add NEWS entry (in any case) and manual
> entry (if the feature should be enabled manually).

I decided NOT to "chicken out", so I added just a NEWS entry, now that
we attempt to auto-detect whether Texinfo supports math or not.

Rudy