(record_delete): Make sure last_point_position_buffer is a buffer before

comparing pointers.

src/ChangeLog

 2000-08-08  Ken Raeburn  <raeburn@gnu.org>
+	* keyboard.c (syms_of_keyboard): Initialize
+	last_point_position_buffer.
+	* undo.c (record_delete): Make sure last_point_position_buffer is
+	a buffer before comparing pointers.
+
+	* coding.h (decode_coding_string): Declare.
+
+	* intervals.h (Fprevious_single_char_property_change): Declare.
+
+	* textprop.c (Fprevious_single_char_property_change): Don't do
+	arithmetic directly on lisp objects.
+
+	* editfns.c (find_field): Use EQ, not ==, to compare lisp
+	objects.
+
+	* keyboard.h (menu_item_eval_property): Declare.
+
+	* xdisp.c (message_dolog): Save and protect string "*Messages*" to
+	reuse as buffer name, instead of recreating (and discarding) every
+	time a message is logged.
+	(with_echo_area_buffer): Make callback arg A2 a lisp object.
+	(current_message_1, truncate_message_1, set_message_1,
+	display_echo_area_1, resize_mini_window_1): Signatures changed.
+	(current_message, truncate_echo_area, display_echo_area,
+	resize_echo_area_axactly): Changed calls.
+
 	* coding.c (find_safe_codings): CHAR_TABLE_SET index must be a
 	lisp object.
 	(Ffind_coding_systems_region_internal): First argument to Fappend

src/undo.c

@@ -140,6 +140,8 @@ record_delete (beg, string)
      point wasn't at start of deleted range, record where it was.  */
   if (at_boundary
       && last_point_position != XFASTINT (sbeg)
+      /* If we're called from batch mode, this could be nil.  */
+      && BUFFERP (last_point_position_buffer)
       && current_buffer == XBUFFER (last_point_position_buffer))
     current_buffer->undo_list
       = Fcons (make_number (last_point_position), current_buffer->undo_list);