-extern u_int32_t fnv_hash_upper(const unsigned char *s, int bits);
-extern u_int32_t fnv_hash(const unsigned char *s, int bits);
-extern u_int32_t fnv_hash_len(const unsigned char *s, int bits, int len);
-extern u_int32_t fnv_hash_upper_len(const unsigned char *s, int bits, int len);
+extern uint32_t fnv_hash_upper(const unsigned char *s, int bits);
+extern uint32_t fnv_hash(const unsigned char *s, int bits);
+extern uint32_t fnv_hash_len(const unsigned char *s, int bits, int len);
+extern uint32_t fnv_hash_upper_len(const unsigned char *s, int bits, int len);