-char *mutt_choose_charset (const char *fromcode, const char *charsets,
- char *u, size_t ulen, char **d, size_t * dlen);
-
-void _rfc2047_encode_string (char **, int, int);
-void rfc2047_encode_adrlist (address_t *, const char *);
-
-#define rfc2047_encode_string(a) _rfc2047_encode_string (a, 0, 32);
-
-void rfc2047_decode (char **);
-void rfc2047_decode_adrlist (address_t *);
-
-void rfc2047_decode_envelope (ENVELOPE* e);