Running gnu-prolog in inferior-prolog-mode (OS X)

Hello!

I'm having trouble running gnu-prolog in inferior-prolog-mode.
It seems to work except that I'm not getting a prompt in
emacs 21.3.50. It works in "terminal" emacs that comes with
OS X 10.1.4/5.

This sounds quite similar to a recent post to the list from
Brian Marick. He ran into the same issue with Ruby. I didn't
find a solution to his problem in the mailing list archives,
so I was wondering if this has been resolved offline?

I've downloaded/compiled emacs-21.3.50 from
savannah.gnu.org, and gprolog-1.2.13 from gprolog.inria.fr.
In order to get the environment variables I've set up an
applescript that runs a shell script which in turn launches
Emacs.app from tcsh. This way I can launch emacs from the
dock and have the correct (tcsh) environment variables. I've
also setq prolog-program-name to "gprolog" which is in the
path.

When I M-x run-prolog in emacs-21.3.50 the subprocess is
(apparently) launched correctly and prints its banner info
but no prompt. It's waiting for input however. If I type 

        append([1,2,3],[4,5],X).

the result appears but, again, not prompt. This works fine
using the "terminal" emacs that comes with OS X (20.7 I
believe). I've also had the same problem with free_bp199,
another prolog system, before replacing it with gprolog
hoping that it would fix the problem.

Thanks in advance,

Peter

-- Peter Ilberg <[email protected]>



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