}
extern stats_tree*
-stats_tree_new(stats_tree_cfg *cfg, tree_pres *pr, char *filter)
+stats_tree_new(stats_tree_cfg *cfg, tree_pres *pr, const char *filter)
{
stats_tree *st = g_malloc(sizeof(stats_tree));
void (*reset_tree)(stats_tree*),
void *data);
-extern stats_tree *stats_tree_new(stats_tree_cfg *cfg, tree_pres *pr, char *filter);
+extern stats_tree *stats_tree_new(stats_tree_cfg *cfg, tree_pres *pr, const char *filter);
/* callback for taps */
extern int stats_tree_packet(void*, packet_info*, epan_dissect_t*, const void *);