libtiff/tif_getimage.c:1537: error: Integer Overflow L2
  ([0, `w`] - 1):unsigned32.

libtiff/tif_getimage.c:1532:1: <LHS trace>
1530.  * 8-bit unpacked CMYK samples => RGBA
1531.  */
1532. DECLARESepPutFunc(putCMYKseparate8bittile)
      ^
1533. {
1534. 	(void) img; (void) y;

libtiff/tif_getimage.c:1532:1: Parameter `w`
1530.  * 8-bit unpacked CMYK samples => RGBA
1531.  */
1532. DECLARESepPutFunc(putCMYKseparate8bittile)
      ^
1533. {
1534. 	(void) img; (void) y;

libtiff/tif_getimage.c:1537:8: Assignment
1535. 	while (h-- > 0) {
1536. 		uint32 rv, gv, bv, kv;
1537. 		for (x = w; x-- > 0;) {
             ^
1538. 			kv = 255 - *a++;
1539. 			rv = (kv*(255-*r++))/255;

libtiff/tif_getimage.c:1537:15: Binary operation: ([0, w] - 1):unsigned32
1535. 	while (h-- > 0) {
1536. 		uint32 rv, gv, bv, kv;
1537. 		for (x = w; x-- > 0;) {
                    ^
1538. 			kv = 255 - *a++;
1539. 			rv = (kv*(255-*r++))/255;
