Arch Linux

Description:
See summary, this simple app reliably segfaults here:

----------------

#include <QCoreApplication>
#include <QDateTime>
#include <QDebug>

int main (int argc, char **argv)
{
QCoreApplication a(argc, argv);

QTime t;
qDebug() << t.addMSecs(-123456789).toString();
QDateTime().setMSecsSinceEpoch(5);

return a.exec();
}

---------
// g++ `pkg-config --libs --cflags QtCore` -o qtimetest qtimetest.cpp



It doesn't matter whether QDateTime is the default constructed, an explicit or ::currentateTime()
The segfault then occurs in QTime::addMSecs() which however works (regardless of the parameter being >=< 0), why i assume this is some binary offset issue.

Also reverting to qt4-4.8.4-16 *only* passes this test (but because of the broken libpng dep would fail in QtGui) and re-upgrading reliably fails it.

Marking as "critical" since if this is not because my HW has a very magic bug, this will have widespread impact on Qt applications "randomly" crashing (eg. Qupzilla when writing to history)

Additional info:
* package version(s)
qt4-4.8.4-17