[Octave-bug-tracker] [bug #35391] available_graphics_toolkits lists gnuplot, although not there

[Rik]

Update of bug #35391 (project octave):

                Severity:                1 - Wish => 3 - Normal             
              Item Group:        Incorrect Result => Crash                  

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Follow-up Comment #4:

This bug is ancient, but still relevant.  It should not be possible to pick
the gnuplot toolkit if it doesn't exist.

When I set the toolkit to gnuplot and it doesn't exist then the only way I
have to get out of Octave is to use Ctrl+C three times and crash the
interpreter--not very user friendly.

I don't know where the fix should go.  Maybe available_graphics_toolkits
should check for the existence of the gnuplot executable.  Maybe it should go
in __init_gnuplot__.cc which is called when 'graphics_toolkit gnuplot' is
used.

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