extern splay_tree_t edge_weight_tree; /* Tree with all known edges sorted on weight */
extern void exit_edges(void);
-extern edge_t *new_edge(void) __attribute__((__malloc__));
extern void free_edge(edge_t *e);
+extern edge_t *new_edge(void) ATTR_MALLOC ATTR_DEALLOCATOR(free_edge);
extern void init_edge_tree(splay_tree_t *tree);
extern void edge_add(edge_t *e);
extern void edge_del(edge_t *e);