(truncate_undo_list): Update decl.

diff --git a/src/lisp.h b/src/lisp.h
index 3dddd6179b2bcb211b7d54ef9e57e9b00297a38e..754356689d94feca1e0e0657661d09f6feeb9c1a 100644 (file)
--- a/src/lisp.h
+++ b/src/lisp.h
@@ -3049,7 +3049,7 @@ extern void syms_of_macros P_ ((void));
 /* defined in undo.c */
 extern Lisp_Object Qinhibit_read_only;
 EXFUN (Fundo_boundary, 0);
-extern Lisp_Object truncate_undo_list P_ ((Lisp_Object, int, int, int));
+extern void truncate_undo_list P_ ((struct buffer *));
 extern void record_marker_adjustment P_ ((Lisp_Object, int));
 extern void record_insert P_ ((int, int));
 extern void record_delete P_ ((int, Lisp_Object));