int mutt_addwch (wchar_t);
int mutt_alloc_color (int fg, int bg);
int mutt_any_key_to_continue (const char *);
-int mutt_builtin_editor (const char *, HEADER *, HEADER *);
int mutt_can_decode (BODY *);
int mutt_change_flag (HEADER *, int);
int mutt_check_encoding (const char *);