Date: Tue, 14 May 2002 18:16:20 +0200 (MET DST) From: Per Kristian Hove <perhov+/dev/null@math.ntnu.no> To: niek@bergboer.net Cc: freebsd-stable@freebsd.org Subject: Re: matlab6 & /dev/ptmx Message-ID: <Pine.GSO.4.40.0205141804230.17040-100000@martens.math.ntnu.no> In-Reply-To: <20020514142128.O57972@wit379119.student.utwente.nl>
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[Niek Bergboer]
| On Tue, May 14, 2002 at 02:59:04PM +0300, Danny Braniss wrote:
| > ??? MATLAB was unable to open the pseudo-tty master device /dev/ptmx
| > [...]
| > is there any solution to this? (apart from running it native under linux :-)?
..
| In -STABLE a /dev/ptmx workalike doesn't exist, and I haven't been
| able to get MATLAB to work properly. Basically, this means that most
| MATLAB functionality is present, but the calling of external commands
| (e.g. !ls) doesn't work.
You can LD_PRELOAD a library that replaces open() and catches
the open("/dev/ptmx") special case, then does a BSD opentty()
and returns the file descriptor of the tty. (Of course you'll
have to compile this library on Linux for the LD_PRELOADing to
work, and modify the Matlab startup script to set LD_PRELOAD
right before it exec's the binary. That makes it a bit more of a
hassle).
A colleague of mine has written a small library to do this.
For a short period of time, you can find it at this address:
http://www.math.ntnu.no/~perhov/public/tmp/fake_ptmx/
Btw: Matlab 6.1 seems to work better than 6.0 in this respect,
as no LD_PRELOADing is necessary.
--
Per Kristian Hove
Principal engineer
Dept. of Mathematical Sciences
Norwegian University of Science and Technology
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