Linux: QFont::setStyleStrategy( QFont::NoAntialias ) does not disable antialiasing with non-gui app

#include <QApplication>
#include <QtGui>

int main( int argc, char** argv )
{
    QApplication app( argc, argv, false );

    QImage image( 400, 300, QImage::Format_RGB32 );
    QFont font( "Helvetica", 24 );
    font.setStyleStrategy(QFont::NoAntialias);
    QPainter painter( &image );

    painter.setFont( font );
    painter.setPen( Qt::white );
    painter.fillRect( image.rect(), Qt::darkBlue );
    painter.drawText( image.rect(), Qt::AlignCenter, "Hello, world!" );
    image.save( "test.png", "PNG" );

    return 0;
}