Index: undo_old.c
===================================================================
--- undo_old.c	(revision 23094)
+++ undo_old.c	(revision 23095)
@@ -51,6 +51,7 @@
 #include "change.h"
 #include "data.h"
 #include "draw.h"
+#include "move.h"
 #include "error.h"
 #include "insert.h"
 #include "polygon.h"