[Octave-bug-tracker] [bug #60290] The message "octave: X11 DISPLAY environment variable not set" should not be printed on startup

[Lars Kindermann]

URL:
  <https://savannah.gnu.org/bugs/?60290>

                 Summary: The message "octave: X11 DISPLAY environment
variable not set" should not be printed on startup
                 Project: GNU Octave
            Submitted by: larskindermann
            Submitted on: Fri 26 Mar 2021 01:38:59 AM CET
                Category: Interpreter
                Severity: 3 - Normal
                Priority: 5 - Normal
              Item Group: Unexpected Error or Warning
                  Status: None
             Assigned to: None
         Originator Name: 
        Originator Email: 
             Open/Closed: Open
                 Release: dev
         Discussion Lock: Any
        Operating System: GNU/Linux

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Details:

Recently I started to use Octave frequently on headless systems (Raspberry Pi
without X11, Termux/Android) with no graphics capabilities. So I am always
greeted with the message 


octave: X11 DISPLAY environment variable not set
octave: disabling GUI features


I am aware of the -q option which disables this, but wouldn't it be better to
throw this warning only when actually requesting a GUI feature?  




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