[Octave-bug-tracker] [bug #42596] OpenGL toolkits for the GUI on MacOS X

[Pantxo Diribarne]

Follow-up Comment #5, bug #42596 (project octave):

Hi,
Using os X 10.9 Mavericks with fink for dependencies. 
AFAICS, the crash happens when a dynamic_cast is performed on a Qt object.
E.g. if I replace dynamic_cast by static_cast in Figure.cc
(Figure::eventNotifyAfter) I can run plot demos with the Qt toolkit and the
gui. 

That is no solution though. I see similar crashes for example if I create a
new file (using the integrated editor) and try to save it: I obtain the
attached crash log which shows that it is still in dynamic_cast operation that
the crash happens.
 
I am wondering if the bug is related to mixed libc++/libstdc++ as in this
thread [1]. 

As Qt4 is compiled with clang in fink, it is linked with system libc++ while
octave is compiled using g++ (4.9 in my case) which links to its own
libstdc++. I have no clue on how to proceed, but this may be worth
investigating.

[1] http://qt-project.org/forums/viewthread/17150

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