--- a/bfile_heuristics.h	Thu Dec 01 17:06:27 2011 +0100
+++ b/bfile_heuristics.h	Thu Jan 26 15:55:52 2012 +0100
@@ -16,9 +16,9 @@
 #define BFILE_HIGH_ACCURACY    0x04
 
 typedef struct {
-  int level;
-  int bcount; /* 'binary' character count */
-  int tcount; /* total count */
+  unsigned int level;
+  unsigned int bcount; /* 'binary' character count */
+  unsigned int tcount; /* total count */
 } bfile_heuristics_t;
 
 #ifdef _cplusplus