Re: Possible Qt terminal bug in recent gnuplot

[Thomas B. <Tho...@gm...>]

Hi all,

* Daniel J Sebald <dan...@ie...> [2013-12-05 16:43]:
> Someone on the Octave maintainers list came across a segfault in the Qt 
> terminal with a fairly recent build of gnuplot.  He isolated the minimal 
> amount of commands to cause the crash which I've copied below.  If no 
> one knows of any recent change that may have caused a problem, I will 
> look into this this weekend.

Thank you for the bug report. This crash is caused by my recent changes
to only initialize the Qt classes in qt_init().
qt_options() may be called before qt_init(), so the qt variable may not
be initialized at that point.
Attached is a minimal patch to fix the issue.

Best regards and sorry for the problems,
Thomas


> Qt terminal with in a recent CVS snapshot has a problem:
> 
> gnuplot> set terminal qt enhanced
> Terminal type set to 'qt'
> Options are '0 enhanced font "Sans,9"'
> gnuplot> set terminal qt enhanced title "Figure 1"
> Terminal type set to 'qt'
> Segmentation fault
> 
> 
> Fedora 19, x86_64
> QT4
>