2009/9/2 jjh <j...@42quarks.com>
>
> On Sep 3, 2:20 am, Tim Lahey <tim.la...@gmail.com> wrote:
> > On Sep 2, 2009, at 11:09 AM, jjh wrote:
> > > Hi,
> >
> > > I have recently upgraded to OS X 10.6. This seems to have broken the
> > > MATLAB interface. MATLAB crashes on startup when called through
> > > matlab.eval() (but runs fine if I run it directly through the
> > > Terminal). This occurs for MATLAB 2008b and 2009a.
> >
> > > The root cause seems to be that this line:
> > > os.execv('/Applications/MATLAB_R2009a.app/bin/matlab', ['/
> > > Applications/
> > > MATLAB_R2009a.app/bin/matlab', '-nodisplay'])
> > > will happily result in a running version of MATLAB when run through
> > > the OS X built-in python (which is version 2.6.1). However, when the
> > > same command is issued within Sage the resulting MATLAB process
> > > crashes on startup (I've appended the MATLAB output to the end of this
> > > message).
> >
> > According tohttp://snowleopard.wikidot.com/there are some problems
> > with
> > the command line version of Matlab 2009a on Snow Leopard. I highly
> > doubt it's a
> > Sage problem.
>
> As I mentioned, MATLAB 2009a (and 2008b) both work fine for me when
> run through Terminal (with or without -nodisplay) and work fine when
> run directly. They even work fine using execv from a normal Python
> shell. But execv matlab with sage crashes MATLAB on startup. It would
> be rather pointless to debate whose "problem" it is, it may well be
> MATLAB doing something wrong in the Sage case. But obviously, MATLAB
> does run on 10.6 in other cases. I would be interested to try and help
> figure out what is going on when started using execv from within Sage
> and fix/workaround it. Does anyone have any ideas what to try?
>
>
I'm guessing environment variables / libraries are relevant. What happens
when you do:
sage: !sage-native-execute matlab
and
sage: !matlab
Thanks for looking into this and reporting this issue.
William
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