Re:

[Francesco Potorti`]

>> instance of Octave running in a CGI and creating a PNG plot.  Even if I
>> start the plotting commands with
>> 
>>    figure("visible","off")
>> 
>> I get 
>> 
>>    warning: X11 DISPLAY environment variable not set
>> 
>> in Apache's error log for each invocation of the CGI script.  This
>> happens even with Octave 3.2 rc4.
>
>This is because Octave gives the warning right when it fires up 

This is not what I see.  If I comment out all the plotting commands, no
warning is logged by Apache.  If I just uncomment the first one, that is
   figure("visible","off")
then the warning is visible in Apache's log.

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