[m-users.] 'help' in debugger shows nothing

[Peter Wang]

On Sat, 25 May 2019 17:55:49 -0400, Harrison Pincket <harrisonpincket at gmail.com> wrote:
> Thanks for your response,
> 
> This is now with ROTD 2019-05-21 but the situation is the same.
> 
> > $install_dir/lib/mercury/mdb
> 
> I believe my install directory is /usr/local/mercury-rotd-2019-05-21
> 
> > (a) one or both of those files are missing or damanged
> 
> I've attached my `mdbrc` found in the above directory. But I don't see
> mdb_doc.

It seems you didn't have info/texinfo installed; it's required to
generate the mdb documentation.

We should warn about that situation more visibly, and preferably install
a dummy mdb_doc file if possible (telling the user how to resolve the
problem).

Peter