tools/tiffcp.c:1085: error: Integer Overflow L2
  ([0, `rows`] - 1):unsigned32.

tools/tiffcp.c:1080:1: <LHS trace>
1078. }
1079. 
1080. static void
      ^
1081. cpContigBufToSeparateBuf(uint8* out, uint8* in,
1082.     uint32 rows, uint32 cols, int outskew, int inskew, tsample_t spp,

tools/tiffcp.c:1080:1: Parameter `rows`
1078. }
1079. 
1080. static void
      ^
1081. cpContigBufToSeparateBuf(uint8* out, uint8* in,
1082.     uint32 rows, uint32 cols, int outskew, int inskew, tsample_t spp,

tools/tiffcp.c:1085:9: Binary operation: ([0, rows] - 1):unsigned32
1083.     int bytes_per_sample )
1084. {
1085. 	while (rows-- > 0) {
              ^
1086. 		uint32 j = cols;
1087. 		while (j-- > 0)
