Index: board.h
===================================================================
--- board.h	(revision 4995)
+++ board.h	(revision 4996)
@@ -146,4 +146,7 @@
 void pcb_board_resize(pcb_coord_t Width, pcb_coord_t Height);
 
 
+/* free the board and remove its undo list */
+void pcb_board_remove(pcb_board_t *Ptr);
+
 #endif