Fix comparisons of differently signed integers in contrib/blast.
diff --git a/contrib/blast/blast.c b/contrib/blast/blast.c
index d45925a..69ef0fe 100644
--- a/contrib/blast/blast.c
+++ b/contrib/blast/blast.c
@@ -23,6 +23,7 @@
* 1.0 12 Feb 2003 - First version
* 1.1 16 Feb 2003 - Fixed distance check for > 4 GB uncompressed data
* 1.2 24 Oct 2012 - Add note about using binary mode in stdio
+ * - Fix comparisons of differently signed integers
*/
#include <setjmp.h> /* for setjmp(), longjmp(), and jmp_buf */
@@ -280,7 +281,7 @@
int dict; /* log2(dictionary size) - 6 */
int symbol; /* decoded symbol, extra bits for distance */
int len; /* length for copy */
- int dist; /* distance for copy */
+ unsigned dist; /* distance for copy */
int copy; /* copy counter */
unsigned char *from, *to; /* copy pointers */
static int virgin = 1; /* build tables once */
