tools/tiffcp.c:1100: error: Integer Overflow L2
  ([0, `imagewidth`] - 1):unsigned32.

tools/tiffcp.c:1071:1: <LHS trace>
1069.  * Separate -> contig by row.
1070.  */
1071. DECLAREcpFunc(cpSeparate2ContigByRow)
      ^
1072. {
1073. 	tsize_t scanlinesizein = TIFFScanlineSize(in);

tools/tiffcp.c:1071:1: Parameter `imagewidth`
1069.  * Separate -> contig by row.
1070.  */
1071. DECLAREcpFunc(cpSeparate2ContigByRow)
      ^
1072. {
1073. 	tsize_t scanlinesizein = TIFFScanlineSize(in);

tools/tiffcp.c:1100:9: Assignment
1098. 			inp = (uint8*)inbuf;
1099. 			outp = ((uint8*)outbuf) + s;
1100. 			for (n = imagewidth; n-- > 0;) {
              ^
1101. 				*outp = *inp++;
1102. 				outp += spp;

tools/tiffcp.c:1100:25: Binary operation: ([0, imagewidth] - 1):unsigned32
1098. 			inp = (uint8*)inbuf;
1099. 			outp = ((uint8*)outbuf) + s;
1100. 			for (n = imagewidth; n-- > 0;) {
                              ^
1101. 				*outp = *inp++;
1102. 				outp += spp;
