unsigned_char_dynarr *destination, int src_bytes,
int *consumed, int conversion_mode);
void setup_ccl_program (struct ccl_program *ccl, Lisp_Object val);
unsigned_char_dynarr *destination, int src_bytes,
int *consumed, int conversion_mode);
void setup_ccl_program (struct ccl_program *ccl, Lisp_Object val);