Index: obj_poly.h
===================================================================
--- obj_poly.h	(revision 25543)
+++ obj_poly.h	(revision 25544)
@@ -95,6 +95,10 @@
 
 double pcb_poly_area(const pcb_poly_t *poly);
 
+/* called from main.c to free some caches */
+void pcb_poly_uninit(void);
+
+
 /*** helpers for iterating over countours */
 
 /*** Polygon helpers on the clopped polygon ***/