[MacPorts] #31396: gnuplot cannot use x11 terminal

[MacPorts]

#31396: gnuplot cannot use x11 terminal
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 Reporter:  raonath@…          |       Owner:  macports-tickets@…                   
     Type:  defect             |      Status:  new                                  
 Priority:  Normal             |   Milestone:                                       
Component:  ports              |     Version:  2.0.3                                
 Keywords:                     |        Port:                                       
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 starting gnuplot and issuing "set terminal x11" fails with
 "unable to open display 'x11' X11 aborted".
 Even more baffling, DISPLAY environment variable is set (to 0.0) and TERM
 is set to xterm. This should set gnuplot plot to x11, but it is set to
 aqua.

 I tried installing xorg package and restarting the computer. That did
 nothing, except that starting X11.app no longer starts a terminal by
 default. I have also tried uninstalling gnuplot and
  its dependents and reinstalling, but nothing has changed.

 Possibly related: "port list gnuplot" says
 gnuplot @4.4.3 math/gnuplot
 but the start-up message from gnuplot says
 version 4.2 patch level 5 last modified Mar 2009

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Ticket URL: <https://trac.macports.org/ticket/31396>
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