extern void tls_free_cert(void **);
extern int tls_getc(unsigned);
extern uschar *tls_getbuf(unsigned *);
-extern void tls_get_cache(void);
+extern void tls_get_cache(unsigned);
extern BOOL tls_import_cert(const uschar *, void **);
extern BOOL tls_is_name_for_cert(const uschar *, void *);
# ifdef USE_OPENSSL
extern uschar *parse_extract_address(const uschar *, uschar **, int *, int *, int *,
BOOL);
-extern int parse_forward_list(uschar *, int, address_item **, uschar **,
+extern int parse_forward_list(const uschar *, int, address_item **, uschar **,
const uschar *, uschar *, error_block **);
-extern uschar *parse_find_address_end(uschar *, BOOL);
+extern uschar *parse_find_address_end(const uschar *, BOOL);
extern const uschar *parse_find_at(const uschar *);
extern const uschar *parse_fix_phrase(const uschar *, int);
extern const uschar *parse_message_id(const uschar *, uschar **, uschar **);
extern BOOL smtp_get_port(uschar *, address_item *, int *, uschar *);
extern int smtp_getc(unsigned);
extern uschar *smtp_getbuf(unsigned *);
-extern void smtp_get_cache(void);
+extern void smtp_get_cache(unsigned);
extern int smtp_handle_acl_fail(int, int, uschar *, uschar *);
extern void smtp_log_no_mail(void);
extern void smtp_message_code(uschar **, int *, uschar **, uschar **, BOOL);