[Octave-bug-tracker] [bug #40242] FLTK + GUI = crash on MacOSX

[Pantxo Diribarne]

Follow-up Comment #10, bug #40242 (project octave):

AFAIU, the GUI (*not* the interpreter) thread is currently the main thread. 

I tried to modify octave-gui.cc, and replace QCoreApplication by QApplication
in the no-gui section, and "qt" graphics_toolkit now works in "--no-gui" mode
also. This means instantiating qt toolkit from the interpreter thread works as
soon as QApplication context has been launched from the GUI thread. 

If the instantiation of qt/fltk graphic toolkits could be moved to the GUI
thread, it would probably solve the problem for fltk indeed. 

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