http://www.avrfreaks.net/index.php?name=PNphpBB2&file=viewtopic&t=90752

        http://www.avrfreaks.net/index.php?name=PNphpBB2&file=viewtopic&t=69813

def optimize_for_size(self):
        '''
        http://www.avrfreaks.net/index.php?name=PNphpBB2&file=viewtopic&t=90752

        http://www.avrfreaks.net/index.php?name=PNphpBB2&file=viewtopic&t=69813
        '''
        self.optimization = 's'
        self.relax = True
        self.gc_sections = True
        self.ffunction_sections = True
        self.fdata_sections = True
        self.fno_inline_small_functions = True