#define CCL_MODE_ENCODING 0
#define CCL_MODE_DECODING 1
-int ccl_driver (struct ccl_program *ccl, CONST unsigned char *source,
+int ccl_driver (struct ccl_program *ccl, const unsigned char *source,
unsigned_char_dynarr *destination, int src_bytes,
int *consumed, int conversion_mode);
void setup_ccl_program (struct ccl_program *ccl, Lisp_Object val);