[Qt-interest] unstable if binary was optimized

[nobody]

hi

since it crashed qt library
reporting the bug here i thought might be of interest

the problem always happen
if vlc compiled + alot of extra optimizations for specific cpu arch

there are checkbox for video effects in extended dialog

attached two crash logs by different methods and can be done without any 
input
#0  0x045963e6 in qt_curves_for_arc ()
* clicked the rotate checkbox then click magnify

#0  0x045a2ea1 in QPainterPath::arcTo ()
* click vlc's main window then move mouse on top of the magnify checkbox 
click it

current release qt-4.5.1, gcc-4.4.0 and AMD Windsor AM2 90nm cpu was used
it maybe vlc's fault

nobody
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