kern/184466: kernel doesn't compilling with options NFS_DEBUG

[Konstantin]

>Number:         184466
>Category:       kern
>Synopsis:       kernel doesn't compilling with options NFS_DEBUG
>Confidential:   no
>Severity:       non-critical
>Priority:       low
>Responsible:    freebsd-bugs
>State:          open
>Quarter:        
>Keywords:       
>Date-Required:
>Class:          sw-bug
>Submitter-Id:   current-users
>Arrival-Date:   Tue Dec 03 09:50:00 UTC 2013
>Closed-Date:
>Last-Modified:
>Originator:     Konstantin
>Release:        9.2 RELEASE
>Organization:
home
>Environment:
FreeBSD web_storage1 9.2-RELEASE FreeBSD 9.2-RELEASE #0 r255898: Thu Sep 26 22:50:31 UTC 2013     root at bake.isc.freebsd.org:/usr/obj/usr/src/sys/GENERIC  amd64

>Description:
I inserted 
options         NFS_DEBUG
in kernel config and try to build kernel
building stops with following:

linking kernel.debug
nfs_clbio.o: In function `ncl_asyncio':
/usr/src/sys/fs/nfsclient/nfs_clbio.c:1457: undefined reference to `nfs_debug'
/usr/src/sys/fs/nfsclient/nfs_clbio.c:1500: undefined reference to `nfs_debug'
/usr/src/sys/fs/nfsclient/nfs_clbio.c:1474: undefined reference to `nfs_debug'
/usr/src/sys/fs/nfsclient/nfs_clbio.c:1443: undefined reference to `nfs_debug'
/usr/src/sys/fs/nfsclient/nfs_clbio.c:1534: undefined reference to `nfs_debug'
nfs_clnfsiod.o:/usr/src/sys/fs/nfsclient/nfs_clnfsiod.c:319: more undefined references to `nfs_debug' follow
*** [kernel.debug] Error code 1

Stop in /usr/obj/usr/src/sys/STORAGE.
*** [buildkernel] Error code 1

Stop in /usr/src.
*** [buildkernel] Error code 1

Stop in /usr/src.

>How-To-Repeat:
Recompile kernel with
options         NFS_DEBUG

>Fix:


>Release-Note:
>Audit-Trail:
>Unformatted: