Date: Tue, 14 May 2002 14:21:28 +0200 From: Niek Bergboer <niek@wit379119.student.utwente.nl> To: freebsd-stable@freebsd.org Subject: Re: matlab6 & /dev/ptmx Message-ID: <20020514142128.O57972@wit379119.student.utwente.nl> In-Reply-To: <E177axM-000H8o-00@cse.cs.huji.ac.il> References: <E177axM-000H8o-00@cse.cs.huji.ac.il>
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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 :-)?
FWIW: I ran into the same problem about 9 months ago. The problem
basically comes down to the different mechanisms by which Linux and
BSD allocate new pseudo-terminals. You might want to look up the
thread in the archives.
In Linux, a program open(2)s /dev/ptmx. The file-descriptor that is
returned points to a free pty at that point. In BSD this mechanism
doesn't exist, and as far as I know a pty "hunt" is performed in which
either the program or a library tries to open each pty device until it
finds one that isn't already taken.
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.
I don't know what the situation is in -CURRENT.
Anyone?
> danny
Regards,
Niek Bergboer
--
"Those who dream by day are cognizant of many things which escape those
who dream only by night."
Edgar Allan Poe
PGP public key at http://www.bergboer.net
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