Comment 2 for bug 259058

Yes, this is exactly the output I see when running toggle_plplot_use.m.

I went through the plplot.m file and removed all of the code blocks relating
to LOADPATH. These blocks occurred in the form of

if (built-in LOADPATH exists)

On Mon, Aug 18, 2008 at 3:30 PM, Aanjhan Ranganathan
<email address hidden>wrote:

> Thanks for the report and helping us make Ubuntu better. Could be a
> packaging issue and the warnings generated while doing a
> "toggle_plplot_use" could be of importance. Confirming the issue and
> below are the warning verbatim.
>
> octave3.0:2> toggle_plplot_use
> warning: You may want to call
> warning("off","Octave:built-in-variable-assignment");
> to prevent spurious warnings from the plplot code for compatability with
> octave 2.0/2.1.
>
> warning: LOADPATH is no longer a built-in variable; please read the NEWS
> file or type `news' for details
> warning: LOADPATH is no longer a built-in variable; please read the NEWS
> file or type `news' for details
> warning: LOADPATH is no longer a built-in variable; please read the NEWS
> file or type `news' for details
> warning: LOADPATH is no longer a built-in variable; please read the NEWS
> file or type `news' for details
> Use PLplot: on
>
> ** Changed in: plplot (Ubuntu)
> Status: New => Confirmed
>
> --
> after using "toggle_plplot_use", octave fails to plat anything.
> https://bugs.launchpad.net/bugs/259058
> You received this bug notification because you are a direct subscriber
> of the bug.
>
> Status in "plplot" source package in Ubuntu: Confirmed
>
> Bug description:
> Binary package hint: octave-plplot
>
> I am running Ubuntu 8.04, octave 3.0 and I installed octave-plplot using
> Synaptic Package Manager.
> gnuplot works fine as the default plotting tool.
>
> At the octave command line I typed the command "toggle_plplot_use" to
> enable plplot as the plotting package.
> Some warnings were issued relating to the built-in variable LOADPATH, but
> plplot was enabled.
>
> Now the command "plot(1:10)" should plot a straight line. No plot is
> displayed. The following errors are shown:
>
> error: liblapack.so.3: cannot open shared object file: No such file or
> directory
> error: `plplot_octave' undefined near line 3163 column 1
> error: called from `plsstrm'
> error: evaluating if command near line 86, column 3
> error: called from `figure' in file `/usr/share/plplot_octave/figure.m'
> error: evaluating if command near line 19, column 3
> error: called from `__pl_init' in file
> `/usr/share/plplot_octave/support/__pl_init.m'
> error: evaluating assignment expression near line 21, column 8
> error: called from `__plt__' in file
> `/usr/share/plplot_octave/support/__plt__.m'
> error: called from `plot' in file `/usr/share/plplot_octave/plot.m'
>
>
> Further details:
> Ubuntu:
> Description: Ubuntu 8.04.1
> Release: 8.04
>
> plplot-octave:
> Installed: 5.8.0-6
> Candidate: 5.8.0-6
> Version table:
> *** 5.8.0-6 0
> 500 http://ie.archive.ubuntu.com hardy/universe Packages
> 100 /var/lib/dpkg/status
>