@ -302,6 +302,16 @@ static void xbuf_format_converter(smart_str *xbuf, const char *fmt, va_list ap)
fmt++;
modifier = LM_LONG_DOUBLE;
break;
case 'I':
#if SIZEOF_LONG_LONG
if (*fmt == '6' && *(fmt+1) == '4') {
fmt += 2;
modifier = LM_LONG_LONG;
} else
#endif
modifier = LM_LONG;
case 'l':