2.5.1 - undefined symbols building NFS as a module

[David Relson]

Here're the relevant settings (AFAIK):

CONFIG_NFS_FS=m
# CONFIG_NFS_V3 is not set
# CONFIG_ROOT_NFS is not set
CONFIG_NFSD=m
# CONFIG_NFSD_V3 is not set

and here's the complaint from "make modules_install"

if [ -r System.map ]; then /sbin/depmod -ae -F System.map  2.5.1; fi
depmod: *** Unresolved symbols in /lib/modules/2.5.1/kernel/fs/nfs/nfs.o
depmod: 	seq_escape
depmod: 	seq_printf
make: *** [_modinst_post] Error 1