[Qt] 64 bit problems

[zeljko at holobit.net]

Quoting Giulio Bernardi <ugilio at hotmail.com>:

>
>> fixed in r11674
>>
>
> I still have problems... but it's very strange.
> After your patch, lazarus starts (via ./startlazarus). However keeps
> crashing when starting it with ./lazarus, and gdb tells me something that
> shouldn't be related to the timer issue.
>
> In fact, when lazarus starts it tells me that last project made lazarus
> crash, so a dialog box asks me if I want to try to reopen that project or
> not. When I click a button in the dialog, the ide crashes.
> What happens is this:
>
> The dialog is created from QuestionDlg, that at some time calls ShowModal
> (of CustomForm).
> ShowModal does a
> ActiveWindow := GetActiveWindow;
> (in the qt interface, it asks to the bindings for the active window, and
> then finds the qtwidget object if I understood correctly).
> After showing the Dialog, ShowModal does a
> if ActiveWindow <> 0 then SetActiveWindow(ActiveWindow);
> In qt interface, we have
>
> procedure TQtWidget.Activate;
> begin
>   QWidget_activateWindow(Widget);
> end;
>
> Widget passes TheObject, but TheObject is nil, so there is a SIGSEGV.
>
> This is what seems to happen, but I'm a bit lost, and compiling with
> -dVerboseQt gives a lot of compilation errors.

hm ... I don't have 64bit linux installation, so cannot help. Any ?
I would like that we have 64bit compilation/running before 0.24 go out.
Giulio, if you have any ideas || patch please provide so I can test  
against 32bit and if it work it will be commited.

grazie :)

   zeljko