* API function to delete messages which match a set of criteria
* (returns the actual number of messages deleted)
*/
-int CtdlDeleteMessages(char *room_name, /* which room */
+int CtdlDeleteMessages(const char *room_name, /* which room */
long *dmsgnums, /* array of msg numbers to be deleted */
int num_dmsgnums, /* number of msgs to be deleted, or 0 for "any" */
char *content_type /* or "" for any. regular expressions expected. */