Bug#670537: gnuplot -persist is a little too persistent

[Ron]

Package: gnuplot-x11
Version: 4.4.0-1.1+b1
Severity: normal

Hi,

With the default wxt terminal, if you close the window (either with the
'q' command or the window manager decoration button) before quitting the
gnuplot session on the console, then gnuplot does not completely exit,
nor does it release the window resource.  Popping the window back to the
foreground with `xwit -id` shows that gnuplot is unresponsive and can
only be killed completely with `kill` from that point.

If you quit the console session before closing the window then gnuplot
seems to exit normally.

This only appears to happen with gnuplot -persist and the wxt terminal,
without -persist or with the x11 terminal it also appears to be working
correctly.


$ gnuplot -persist

Terminal type set to 'wxt'
gnuplot> load "my-script"

 <hit 'q' in the plot window>

gnuplot> quit

$ ps xau | grep gnuplot
ron      30197  0.0  0.0 256592  6776 pts/4    S    23:07   0:00 gnuplot -persist



I don't have a suitable machine to test this against 4.6 right now, but
I figured I'd report it anyway so I don't forget the details, and so other
people can look into it as well in the meantime.

I'm also not sure if this is related to #602936, it kind of seems like the
'opposite' problem to that, but the real cause may (or may not :) be related.

 Cheers,
 Ron



-- System Information:
Debian Release: squeeze/sid
  APT prefers unstable
  APT policy: (500, 'unstable')
Architecture: amd64 (x86_64)

Kernel: Linux 2.6.32-5-amd64 (SMP w/4 CPU cores)
Locale: LANG=en_AU.UTF-8, LC_CTYPE=en_AU.UTF-8 (charmap=UTF-8)
Shell: /bin/sh linked to /bin/dash

Versions of packages gnuplot-x11 depends on:
ii  gnuplot-nox            4.4.0-1.1+b1      A command-line driven interactive 
ii  libc6                  2.11.2-7          Embedded GNU C Library: Shared lib
ii  libcairo2              1.8.10-6          The Cairo 2D vector graphics libra
ii  libedit2               2.11-20080614-2   BSD editline and history libraries
ii  libgcc1                1:4.4.5-10        GCC support library
ii  libgd2-noxpm           2.0.36~rc1~dfsg-5 GD Graphics Library version 2 (wit
ii  libglib2.0-0           2.24.2-1          The GLib library of C routines
ii  libpango1.0-0          1.28.3-1          Layout and rendering of internatio
ii  libstdc++6             4.4.5-10          The GNU Standard C++ Library v3
ii  libwxbase2.8-0         2.8.10.1-3+b1     wxBase library (runtime) - non-GUI
ii  libwxgtk2.8-0          2.8.10.1-3+b1     wxWidgets Cross-platform C++ GUI t
ii  libx11-6               2:1.3.3-4         X11 client-side library

gnuplot-x11 recommends no packages.

gnuplot-x11 suggests no packages.

-- no debconf information