crash when using wxt in Ubuntu 12.04

[Ilya S. <il...@sc...>]

Hi there,

I suffer from the crash of gnuplot when using wxt terminal. It looks like this:

[user@thinkie user #2067]$ gnuplot
                                                    ~

    G N U P L O T
    Version 4.7 patchlevel 0    last modified 2013-05-03

    Copyright (C) 1986-1993, 1998, 2004, 2007-2012
    Thomas Williams, Colin Kelley and many others

    gnuplot home:     http://www.gnuplot.info
    mailing list:     gnu...@li...
    faq, bugs, etc:   type "help FAQ"
    immediate help:   type "help"  (plot window: hit 'h')

Terminal type set to 'wxt'
gnuplot> plot sin(x)
[xcb] Unknown request in queue while dequeuing
[xcb] Most likely this is a multi-threaded client and XInitThreads has
not been called
[xcb] Aborting, sorry about that.
gnuplot: ../../src/xcb_io.c:178: dequeue_pending_request: Assertion
`!xcb_xlib_unknown_req_in_deq' failed.
zsh: abort (core dumped)  gnuplot

This crash is unstable, i.e. from time to time I can plot something
with wxt terminal but if I try interacting with this terminal with
mouse, it crashes again. When I use terminal x11, it works fine.

gnuplot is builded from the sources (I tried both latest 4.6 and CVS
versions). I'm using Ubuntu 12.04.

There is gnuplot 4.4 patchlevel 3 installed globally with ubuntu
package, and it works fine with wxt, but I need some features from
4.6.

Related packages has the following status:

[user@thinkie src #2050]$ dpkg-query -l "libcairo*" "libwx*"
"libpango*"                  ~/soft/src/gnuplot-cvs/gnuplot/src
Desired=Unknown/Install/Remove/Purge/Hold
| Status=Not/Inst/Conf-files/Unpacked/halF-conf/Half-inst/trig-aWait/Trig-pend
|/ Err?=(none)/Reinst-required (Status,Err: uppercase=bad)
||/ Name                      Version                   Description
+++-=========================-=========================-==================================================================
un  libcairo-dev              <none>                    (no
description available)
ii  libcairo-gobject2         1.10.2-6.1ubuntu3         The Cairo 2D
vector graphics library (GObject library)
ii  libcairo-perl             1.081-1build2             Perl interface
to the Cairo graphics library
ii  libcairo-script-interpret 1.10.2-6.1ubuntu3         The Cairo 2D
vector graphics library (script interpreter)
ii  libcairo2                 1.10.2-6.1ubuntu3         The Cairo 2D
vector graphics library
ii  libcairo2-dev             1.10.2-6.1ubuntu3         Development
files for the Cairo 2D graphics library
un  libcairo2-doc             <none>                    (no
description available)
un  libcairomm-1.0-0          <none>                    (no
description available)
ii  libcairomm-1.0-1          1.10.0-1ubuntu1           C++ wrappers
for Cairo (shared libraries)
ii  libpango-perl             1.222-1build1             Perl module to
layout and render international text
ii  libpango1.0-0             1.30.0-0ubuntu3.1         Layout and
rendering of internationalized text
ii  libpango1.0-dev           1.30.0-0ubuntu3.1         Development
files for the Pango
un  libpango1.0-doc           <none>                    (no
description available)
ii  libpangomm-1.4-1          2.28.4-1ubuntu1           C++ Wrapper
for pango (shared libraries)
ii  libwxbase2.8-0            2.8.12.1-6ubuntu2         wxBase library
(runtime) - non-GUI support classes of wxWidgets to
ii  libwxbase2.9-0-unofficial 2.9.4-1~eugenesan~precise wxBase library
(runtime) - non-GUI support classes of wxWidgets to
ii  libwxbase2.9-dev          2.9.4-1~eugenesan~precise wxBase library
(development) - non-GUI support classes of wxWidget
un  libwxgtk2.4-contrib-dev   <none>                    (no
description available)
un  libwxgtk2.6-0-python      <none>                    (no
description available)
ii  libwxgtk2.8-0             2.8.12.1-6ubuntu2         wxWidgets
Cross-platform C++ GUI toolkit (GTK+ runtime)
ii  libwxgtk2.9-0-unofficial  2.9.4-1~eugenesan~precise wxWidgets
Cross-platform C++ GUI toolkit (GTK+ runtime)
ii  libwxgtk2.9-dev           2.9.4-1~eugenesan~precise wxWidgets
Cross-platform C++ GUI toolkit (GTK+ development)


--
With best regards,
Ilya V. Schurov.