struct sum_struct {
OFF_T flength; /**< total file length */
struct sum_buf *sums; /**< points to info for each chunk */
- size_t count; /**< how many chunks */
+ int32 count; /**< how many chunks */
int32 blength; /**< block_length */
int32 remainder; /**< flength % block_length */
int s2length; /**< sum2_length */