[Python-modules-team] Bug#753581: qt4-designer: Fails to start, symbol lookup error in qscintilla

Scott Kitterman debian at kitterman.com
Thu Jul 3 12:05:30 UTC 2014

On Thursday, July 03, 2014 08:37:14 Lisandro Damián Nicanor Pérez Meyer wrote:
> reassign 753581 libqscintilla2-designer
> thanks
> On Thursday 03 July 2014 09:30:44 Gudjon I. Gudjonsson wrote:
> > Package: qt4-designer
> > Version: 4:4.8.6+dfsg-2
> > Severity: important
> > 
> > Dear Maintainer,
> > 
> > designer fails to start and exits with the following error message.
> > /usr/lib/x86_64-linux-gnu/qt4/bin/designer: symbol lookup error:
> > /usr/lib/x86_64-linux-gnu/qt4/plugins/designer/libqscintillaplugin.so:
> > undefined symbol: _ZN13QsciScintillaC1EP7QWidget
> This is symbol missing in qscintilla's plugin. I'm reassigning the bug to
> qscintilla.

_ZN13QsciScintillaC1EP7QWidget demangles to 
QsciScintilla::QsciScintilla(QWidget*) and 
qscintilla2-2.8.2+dfsg/Qt4Qt5/qsciscintilla.cpp has 
QsciScintilla::QsciScintilla(QWidget *parent) which is unchanged for a long 
time.  So I believe that things are as they should be for Qt4 in qscintilla2, 
but the designer plugin for Qt5 is not yet packaged.

If you are using the qtcreator from Unstable, you probably got the Qt5 one and 
this may be a poor error message that turns out to mean the Qt5 designer 
plugin isn't packaged yet.

Scott K
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