libtiff/tif_getimage.c:1643: error: Integer Overflow L2
  ([0, `w`] - 1):unsigned32.

libtiff/tif_getimage.c:1637:1: <LHS trace>
1635.  * 8-bit unpacked samples => RGBA w/ unassociated alpha
1636.  */
1637. DECLARESepPutFunc(putRGBUAseparate8bittile)
      ^
1638. {
1639. 	(void) img; (void) y;

libtiff/tif_getimage.c:1637:1: Parameter `w`
1635.  * 8-bit unpacked samples => RGBA w/ unassociated alpha
1636.  */
1637. DECLARESepPutFunc(putRGBUAseparate8bittile)
      ^
1638. {
1639. 	(void) img; (void) y;

libtiff/tif_getimage.c:1643:8: Assignment
1641. 		uint32 rv, gv, bv, av;
1642. 		uint8* m;
1643. 		for (x = w; x-- > 0;) {
             ^
1644. 			av = *a++;
1645. 			m = img->UaToAa+((size_t) av<<8);

libtiff/tif_getimage.c:1643:15: Binary operation: ([0, w] - 1):unsigned32
1641. 		uint32 rv, gv, bv, av;
1642. 		uint8* m;
1643. 		for (x = w; x-- > 0;) {
                    ^
1644. 			av = *a++;
1645. 			m = img->UaToAa+((size_t) av<<8);
