Index: trunk/src/Makefile.in
===================================================================
--- trunk/src/Makefile.in	(revision 21146)
+++ trunk/src/Makefile.in	(revision 21147)
@@ -188,6 +188,7 @@
 	unit.o
 	vtlibrary.o
 	vtc0.o
+	vtid.o
 	vtonpoint.o
 	vtpadstack.o
 	vtpadstack_t.o
Index: trunk/src/drc.h
===================================================================
--- trunk/src/drc.h	(revision 21146)
+++ trunk/src/drc.h	(revision 21147)
@@ -31,6 +31,7 @@
 
 #include <genlist/gendlist.h>
 #include "unit.h"
+#include "vtid.h"
 
 typedef struct drc_violation_s pcb_drc_violation_t;
 struct drc_violation_s {
Index: trunk/src/vtid.c
===================================================================
--- trunk/src/vtid.c	(nonexistent)
+++ trunk/src/vtid.c	(revision 21147)
@@ -0,0 +1,3 @@
+#define GVT_DONT_UNDEF
+#include "vtid.h"
+#include <genvector/genvector_impl.c>
Index: trunk/src/vtid.h
===================================================================
--- trunk/src/vtid.h	(nonexistent)
+++ trunk/src/vtid.h	(revision 21147)
@@ -0,0 +1,23 @@
+#ifndef VTID_H
+#define VTID_H
+
+/* vector of object IDs */
+
+#include "config.h"
+#include <stdlib.h>
+#include <string.h>
+
+#define GVT(x) vtid_ ## x
+#define GVT_ELEM_TYPE long int
+#define GVT_SIZE_TYPE size_t
+#define GVT_DOUBLING_THRS 4096
+#define GVT_START_SIZE 32
+#define GVT_FUNC
+#define GVT_SET_NEW_BYTES_TO 0
+
+#include <genvector/genvector_impl.h>
+#define GVT_REALLOC(vect, ptr, size)  realloc(ptr, size)
+#define GVT_FREE(vect, ptr)           free(ptr)
+#include <genvector/genvector_undef.h>
+
+#endif