(mu_mailbox_set_default_proto,mu_mailbox_get_default_proto): New prototypes.

@@ -32,6 +32,10 @@ void mu_set_folder_directory (const char *p);
 const char *mu_mail_directory (void);
 const char *mu_folder_directory (void);
 int mu_construct_user_mailbox_url (char **pout, const char *name);
+
+/* Default mailbox protocol */
+int mu_mailbox_set_default_proto (const char *proto);
+const char *mu_mailbox_get_default_proto (void);
   
 /* Constructor/destructor and possible types.  */
 extern int  mu_mailbox_create          (mu_mailbox_t *, const char *);