Fixed compiler warnings.

src/dnslib/zone-dump-text.c

@@ -975,7 +975,7 @@ void node_dump_text(dnslib_node_t *node, void *data)
 	}
 }
 
-int zone_dump_text(const dnslib_zone_t *zone, const char *filename)
+int zone_dump_text(dnslib_zone_t *zone, const char *filename)
 {
 	FILE *f = fopen(filename, "w");
 	if (f == NULL) {

src/dnslib/zone-dump-text.h

@@ -24,7 +24,7 @@
  * \retval DNSLIB_EOK on success.
  * \retval DNSLIB_EBADARG if the specified file is not valid for writing.
  */
-int zone_dump_text(const dnslib_zone_t *zone, const char *filename);
+int zone_dump_text(dnslib_zone_t *zone, const char *filename);
 
 #endif // _KNOT_DNSLIB_ZONE_DUMP_TEXT_H_
 

src/dnslib/zone-load.c

@@ -49,8 +49,6 @@ static int timespec_cmp(struct timespec *x, struct timespec *y)
 	return -1;
 }
 
-
-static crc_t dnslib_load_crc;
 /*!
  * \brief Safe wrapper around fread.
  *