Throwing exception crashes app

[superpacko]

I have a big issue with exceptions. I have change our compilation enviroment to use qmake to buils makefiles depending on the platform.
When testing the application i found that everytime an exception is thrown the app crashes with a runtime exception. (we are on windows 7 32bits)

So i made a silly main.cpp to see if the exception was the problem, and it confirmed it.

#include <iostream>
#include <exception>
#include <QDebug>
 
void tiraException()
{
    std::exception e;
    throw e;
}
 
 
int main()
{
    qDebug() << "initiating test...";
 
    try
    {
        tiraException();
    }
    catch (...)
    {
        qDebug() << "error: excepcion!";
    }
 
    return 0;
}

#include <iostream>
#include <exception>
#include <QDebug>

void tiraException()
{
    std::exception e;
    throw e;
}


int main()
{
    qDebug() << "initiating test...";

    try
    {
        tiraException();
    }
    catch (...)
    {
        qDebug() << "error: excepcion!";
    }

    return 0;
}

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This simple program crashes when throwign the exception.... any ideas? everything is in default state (building enviroment, using qt creator's mingw)

help will be much apreciated!