* HarfBuzz and doing that just once (no reuse!),
*
* - If the font is mmap()ed, it's okay to use
- * @HB_MEMORY_READONLY_MAY_MAKE_WRITABLE, however, using that mode
+ * @HB_MEMORY_MODE_READONLY_MAY_MAKE_WRITABLE, however, using that mode
* correctly is very tricky. Use @HB_MEMORY_MODE_READONLY instead.
**/
typedef enum {
HB_EXTERN void *
-hb_blob_get_user_data (hb_blob_t *blob,
+hb_blob_get_user_data (const hb_blob_t *blob,
hb_user_data_key_t *key);