void mutt_create_alias (ENVELOPE *, ADDRESS *);
int mutt_check_alias_name (const char *, char *);
-ADDRESS *mutt_get_address (ENVELOPE *, char **);
+ADDRESS *mutt_get_address (ENVELOPE *, const char **);
ADDRESS *mutt_lookup_alias (const char *s);
ADDRESS *mutt_expand_aliases (ADDRESS *);
void mutt_expand_aliases_env (ENVELOPE *);