Public bug reported:

My Environment:

- Xubuntu Linux 14.04 (64bit)
- Xorg 1:7.7+1ubuntu8

Confirmed gnuplot versions:

- gnuplot-x11 4.6.4-2

Steps to reproduce:

1. Type

    $ echo "set term wxt; plot sin(x)" | gnuplot --persist

2. Click the close button in the plot window.
   Nothing happens. The window won't respond to any mouse action
   anymore.
3. Even after the window manager (xfwm4) forces the window
   to close, the gnuplot process still lives.
   I have to kill it by "kill" command.

The window should close and the gnuplot process should terminate.

Note:

- This also happens when you feed a file to gnuplot, as in:

    $ cat sample.plot
    set term wxt
    plot sin(x)
    $ gnuplot --persist sample.plot

- Maybe related to
  https://bugs.launchpad.net/ubuntu/+source/gnuplot/+bug/300829
  https://bugs.launchpad.net/ubuntu/+source/gnuplot/+bug/239466


I reported this bug to the upstream ( 
http://sourceforge.net/p/gnuplot/bugs/1453/ ),
but they said they couldn't reproduce it.

Can you reproduce this bug? Any information is appreciated.

** Affects: gnuplot (Ubuntu)
     Importance: Undecided
         Status: New

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https://bugs.launchpad.net/bugs/1351847

Title:
  gnuplot wxt window freezes after clicking the close button in
  --persist mode

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