diff -u -r src/hackerlab/vu/vu-virtual-null.h src-new/hackerlab/vu/vu-virtual-null.h
--- src/hackerlab/vu/vu-virtual-null.h	2005-05-01 18:23:19.908836024 +0200
+++ src-new/hackerlab/vu/vu-virtual-null.h	2005-05-01 18:23:19.908836024 +0200
@@ -22,7 +22,7 @@
  * An in-process emulation of /dev/null.
  *
  */
-extern struct vu_fs_discipline vu_virtual_null_vtable;
+static struct vu_fs_discipline vu_virtual_null_vtable;
 
 
 /* automatically generated __STDC__ prototypes */