Index: obj_line.h
===================================================================
--- obj_line.h	(revision 18573)
+++ obj_line.h	(revision 18574)
@@ -77,7 +77,12 @@
 int pcb_line_eq(const pcb_host_trans_t *tr1, const pcb_line_t *l1, const pcb_host_trans_t *tr2, const pcb_line_t *l2);
 unsigned int pcb_line_hash(const pcb_host_trans_t *tr, const pcb_line_t *l);
 
+/* un-administrate a line; call before changing geometry */
+void pcb_line_pre(pcb_line_t *line);
 
+/* re-administrate a line; call after changing geometry */
+void pcb_line_pre(pcb_line_t *line);
+
 /*** DRC enforcement (obj_line_drcenf.c) ***/
 void pcb_line_adjust_attached(void);
 void pcb_line_adjust_attached_2lines(pcb_bool);