Re: [Caml-list] Tuareg mode under Cygwin...

[Igor Peshansky <pechtcha@cs.nyu.edu>]

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On Mon, 20 Feb 2006, Matthieu Dubuget wrote:

> Igor Peshansky a écrit :
>
> > On Mon, 20 Feb 2006, Matthieu Dubuget wrote:
> >
> > > Igor Peshansky a écrit :
> > >
> > > > On Sun, 19 Feb 2006, Jeremy Shute wrote:
> > > >
> > > > > Hi,
> > > > >
> > > > > When I fire up Tuareg mode under native Windows emacs and run an
> > > > > inferior-caml, I get what I expect (Caml running in an emacs
> > > > > buffer). When I do so with Cygwin's Emacs, I get an empty buffer
> > > > > and a process "ocamlrun.exe" dressed in new window trim, which
> > > > > seems completely detached from the inferior-caml buffer (meaning
> > > > > C-c C-e does NOT send commands to this new process).
> > > > >
> > > > > I asked Albert Cohen, Tuareg-mode's creator, but he didn't know
> > > > > much about Windows, and suggested I ask here.
> > > > >
> > > > > What magic Elisp incantation will shackle invocations of "ocaml"
> > > > > in a buffer, when using Cygwin emacs?  I also tried "sh -c
> > > > > ocaml" to no avail...
> > > > >
> > > > > Jeremy
> > > >
> > > > Hi, Jeremy,
> > > >
> > > > This sounds like either a Cygwin emacs bug or a bug in the
> > > > commands Tuareg uses to start the ocaml process that manifests
> > > > only in Cygwin's emacs. Since this is likely not a problem with
> > > > ocaml itself (but rather with either the Cygwin ocaml package or
> > > > Cygwin emacs), the main Cygwin list (<cygwin at cygwin dot com>)
> > > > would be a better place to discuss it and track down the culprit.
> > > >
> > > > Unfortunately, I don't use emacs, and haven't tested the Cygwin
> > > > O'Caml package under emacs (and wouldn't know how).  Thus, another
> > > > reason to move this to the main Cygwin list, since there are many
> > > > emacs experts there.
> > > >
> > > > One thing that would help is following the Cygwin problem
> > > > reporting guidelines at <http://cygwin.com/problems.html> when
> > > > re-posting this to the main Cygwin list (particularly attaching
> > > > the output of "cygcheck -svr").
> > > >
> > > > See you on the Cygwin list, :-)
> > > >
> > > > Igor Peshansky, the Cygwin O'Caml volunteer maintainer
> > >
> > > Last time I had a similar problem, I discovered that recompiling the
> > > ocaml toplevel was solving the problem.
> > >
> > > Maybe this will work for you ?
> >
> > Hmm, indeed.  Though don't forget, Matthieu, that Cygwin is still at
> > version 3.08.1...
> >
> > Jeremy, if recompiling works for you, please let me know, and I'll
> > release a rebuit version of ocaml for Cygwin.  You can download the
> > ocaml source package using Cygwin setup and run the packaging script
> > to build (use the "--help" option for a list of possible steps).
> >
> > Igor Peshansky, the Cygwin O'Caml volunteer maintainer
>
> I would have describe my problem the same way as Jeremy.
> I do use one standard native distribution of Ocaml, and cygwin version
> of emacs.
> I did not used the right term though: I did not meant re-compiling the
> toplevel. Just creating a new one with
> ocamlmktop -custom ...

Ah.  If you use a native ocaml, it may not work with Cygwin emacs, as it
won't understand the ptys that emacs uses to communicate with it (and thus
will pop up a console).  I forgot to ask Jeremy whether he uses the Cygwin
version of ocaml, or the Windows native one.  A quick test of this outside
emacs is to try using rxvt -- if your ocaml works inside that, it probably
will work inside emacs too.

I don't know why remaking the toplevel helped you (since that didn't
create a Cygwin version of it).  Rebuilding under Cygwin would most likely
help, as would installing the pre-built Cygwin ocaml package that is part
of the Cygwin distribution.

Igor Peshansky, Cygwin O'Caml volunteer maintainer
-- 
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