diff -uNr linux.8/drivers/char/tty_io.c linux/drivers/char/tty_io.c
--- linux.8/drivers/char/tty_io.c	2005-02-19 17:42:57.000000000 +0100
+++ linux/drivers/char/tty_io.c	2005-02-19 17:56:46.000000000 +0100
@@ -2058,6 +2058,7 @@
 #endif /* CONFIG_DEVFS_FS */
 }
 
+EXPORT_SYMBOL(ldiscs);  /* BDL */
 EXPORT_SYMBOL(tty_register_devfs);
 EXPORT_SYMBOL(tty_unregister_devfs);