-extern struct Lisp_Char_Table *buffer_display_table P_ ((void));
-
-/* Display table to use for vectors that don't specify their own. */
-extern Lisp_Object Vstandard_display_table;
-
-/* This is the `purpose' slot of a display table. */
-extern Lisp_Object Qdisplay_table;
-
-/* Vector of GLYPH definitions. Indexed by GLYPH number,
- the contents are a string which is how to output the GLYPH. */
-extern Lisp_Object Vglyph_table;