problem building world on 9.1 stable after changing 100% to svn

[Edwin L. Culp W.]

I am currently tying to use the new tools that replace cvsup and then
recompile.  Ports are working as expected but buildworld has been giving me
a headache .
I'm manually trying


# svn up /usr/src

   Updating '.':
   At revision 248935.

# cd /usr/src
 # make buildworld

It then chugs right along util it generates tha e following error:

cc -O2 -pipe  -I/usr/src/usr.bin/xinstall/../../contrib/mtree
-I/usr/src/usr.bin/xinstall/../../lib/libnetbsd
-I/usr/src/usr.bin/xinstall/../../lib/libmd -std=gnu99 -fstack-protector
-Wsystem-headers -Werror -Wall -Wno-format-y2k -W -Wno-unused-parameter
-Wstrict-prototypes -Wmissing-prototypes -Wpointer-arith -Wreturn-type
-Wcast-qual -Wwrite-strings -Wswitch -Wshadow -Wunused-parameter
-Wcast-align -Wchar-subscripts -Winline -Wnested-externs -Wredundant-decls
-Wold-style-definition -Wno-pointer-sign -c
/usr/src/usr.bin/xinstall/xinstall.c
cc1: warnings being treated as errors
/usr/src/usr.bin/xinstall/xinstall.c: In function 'metadata_log':
/usr/src/usr.bin/xinstall/xinstall.c:1331: warning: implicit declaration of
function 'strsvis'
/usr/src/usr.bin/xinstall/xinstall.c:1331: warning: nested extern
declaration of 'strsvis'
*** [xinstall.o] Error code 1

Stop in /usr/src/usr.bin/xinstall.
*** [all] Error code 1

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

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

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

Stop in /usr/src.

I've probably missed something obvious because I can't find it and I've
been building world for years with no real problems.

Thanks for your help,

ed

uname follows:

# uname -a
FreeBSD home.encontacto.net 9.1-STABLE FreeBSD 9.1-STABLE #444 r248654M:
Wed Mar 27 05:43:15 CST 2013
root at home.encontacto.net:/usr/obj/usr/src/sys/ENCONTACTO
amd64