extern void init_iconv (void);
extern size_t convert_string (charset_t, charset_t, void const *, size_t, void *, size_t);
extern size_t convert_string_allocate (charset_t, charset_t, void const *, size_t, char **);
extern void init_iconv (void);
extern size_t convert_string (charset_t, charset_t, void const *, size_t, void *, size_t);
extern size_t convert_string_allocate (charset_t, charset_t, void const *, size_t, char **);