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diff --git a/src/disptab.h b/src/disptab.h
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+/* Things for GLYPHS and glyph tables.
+   Copyright (C) 1990 Free Software Foundation, Inc.
+
+This file is part of GNU Emacs.
+
+GNU Emacs is free software; you can redistribute it and/or modify
+it under the terms of the GNU General Public License as published by
+the Free Software Foundation; either version 1, or (at your option)
+any later version.
+
+GNU Emacs is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+GNU General Public License for more details.
+
+You should have received a copy of the GNU General Public License
+along with GNU Emacs; see the file COPYING.  If not, write to
+the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA.  */
+
+/* Access the slots of a display-table, according to their purpose.  */
+
+#define DISP_TABLE_SIZE 261
+#define DISP_TRUNC_GLYPH(dp) ((dp)->contents[256])
+#define DISP_CONTINUE_GLYPH(dp) ((dp)->contents[257])
+#define DISP_ESCAPE_GLYPH(dp) ((dp)->contents[258])
+#define DISP_CTRL_GLYPH(dp) ((dp)->contents[259])
+#define DISP_INVIS_ROPE(dp) ((dp)->contents[260])
+#define DISP_CHAR_ROPE(dp, c) ((dp)->contents[c])
+
+extern struct Lisp_Vector *window_display_table ();
+
+/* Display table to use for vectors that don't specify their own.  */
+extern Lisp_Object Vstandard_display_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;
+
+/* Return the current length of the GLYPH table,
+   or 0 if the table isn't currently valid.  */
+#define GLYPH_TABLE_LENGTH  \
+  ((XTYPE (Vglyph_table) == Lisp_Vector) \
+   ? XVECTOR (Vglyph_table)->size : 0)
+
+/* Return the current base (for indexing) of the GLYPH table,
+   or 0 if the table isn't currently valid.  */
+#define GLYPH_TABLE_BASE  \
+  ((XTYPE (Vglyph_table) == Lisp_Vector) \
+   ? XVECTOR (Vglyph_table)->contents : 0)
+
+/* Given BASE and LEN returned by the two previous macros,
+   return nonzero if the GLYPH code G should be output as a single
+   character with code G.  Return zero if G has a string in the table.  */
+#define GLYPH_SIMPLE_P(base,len,g)  \
+  ((g) >= (len) || XTYPE (base[g]) != Lisp_String)
+
+/* Given BASE and LEN returned by the two previous macros,
+   return nonzero if GLYPH code G is aliased to a different code.  */
+#define GLYPH_ALIAS_P(base,len,g)  \
+  ((g) < (len) && XTYPE (base[g]) == Lisp_Int)
+
+/* Assuming that GLYPH_SIMPLE_P (BASE, LEN, G) is 1,
+   return the alias for G.  */
+#define GLYPH_ALIAS(base, g) XINT (base[g])
+
+/* Assuming that GLYPH_SIMPLE_P (BASE, LEN, G) is 0,
+   return the length and the address of the character-sequence
+   used for outputting GLYPH G.  */
+#define GLYPH_LENGTH(base,g)   XSTRING (base[g])->size
+#define GLYPH_STRING(base,g)   XSTRING (base[g])->data
+
+/* GLYPH for a space character.  */
+
+#define SPACEGLYPH 040
+#define NULL_GLYPH 00
+
+#define GLYPH_FROM_CHAR(c) (c)
+
+extern int glyphlen ();
+extern void str_to_glyph_cpy ();
+extern void str_to_glyph_ncpy ();
+extern void glyph_to_str_cpy ();