@@ -88,7 +88,8 @@ static int decode_init(AVCodecContext *avctx)

  * Comparator - our nodes should ascend by count

  * but with preserved symbol order

  */

-static int huff_cmp(const Node *a, const Node *b){

+static int huff_cmp(const void *va, const void *vb){

+    const Node *a = va, *b = vb;

     return (a->count - b->count)*256 + a->sym - b->sym;

 }