Linux QT4 app hangs on exit

[nish]

did you tried returning app.exe() ?

edit:-> also use show() in maindialog instead of exec()

[doggrant]

I changed the code as follows:

MainDialog dialog( 0, Qt::WindowMaximizeButtonHint | Qt::WindowMinimizeButtonHint );
dialog.show();
 
return app.exec();

MainDialog dialog( 0, Qt::WindowMaximizeButtonHint | Qt::WindowMinimizeButtonHint );
dialog.show();

return app.exec();

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But I still get the hang on Linux. Looking at the output from GDB, it's still the same as in my initial post.

[nish]

i bail out

[doggrant]

I've resolved this issue in a strange way, but will investigate the cause later.

In my App I had the following :-

- Main app (exe).
- A number of widget which are built as shared object (.so/.dll).
- A static library which is linked into the main app and shared objects (.a/.lib).

On windows and solaris, everything is fine, but on linux, this method, causes the main app to hang on exit, when cleaning up and closing the shared objects.

I got around the problem by changing the structure to :-

- Main app (exe).
- A number of widget which are built as shared object (.so/.dll).

Now rather than having a static library linked in, which contains the shared code, which is duplciated in each shared object, I include the C++ files in each individual *.pro file for each shared object. Building like this stops the hang.

This is a very strange issue, but as I said, it resolves my issue for now, and enables me to conitnue with my dev on QT4.