Run `src/qt/bitcoin-qt --disablewallet=1`. 
Quitting after any amount of time will result in `Segmentation fault: 11`

0.14.0 branch at 861cb0c83db0571c2863f6b6276314e115c266ee , osx 10.12.3, Qt5.8
}
    }
    
    if (!msgType.isEmpty())
        strTitle += " - " + msgType;
    
    if (style & CClientUIInterface::ICON_ERROR) {
        nMBoxIcon = QMessageBox::Critical;
        nNotifyIcon = Notificator::Critical;
    }
    else if (style & CClientUIInterface::ICON_WARNING) {
        nMBoxIcon = QMessageBox::Warning;
        nNotifyIcon = Notificator::Warning;
    }
    
    if (style & CClientUIInterface::MODAL) {
        
        QMessageBox::StandardButton buttons;
        if (!(buttons = (QMessageBox::StandardButton)(style & CClientUIInterface::BTN_MASK)))
            buttons = QMessageBox::Ok;
        showNormalIfMinimized();
        QMessageBox mBox((QMessageBox::Icon)nMBoxIcon, strTitle, message, buttons, this);
        int r = mBox.exec();
        if (ret != NULL)
            *ret = r == QMessageBox::Ok;
    }
    else
        notificator->notify((Notificator::Class)nNotifyIcon, strTitle, message);
}
void BitcoinGUI::changeEvent(QEvent *e)