5-CURRENT build errors

[Eric Timme]

I've had this build error over the last two attempted cvsups. I'm having a

heck of a time finding a buildable/installable moment in time of the 
-current branch post PF changes.

System is a k6-233.

cc -O -pipe  -I/mnt/ad1s3/src/lib/libc/include
-I/mnt/ad1s3/src/lib/libc/../../include -I/mnt/ad1s3/src/lib/libc/i386
-D__DBINTERFACE_PRIVATE -I/mnt/ad1s3/src/lib/libc/../../contrib/gdtoa
-DINET6
-I/usr/obj/mnt/ad1s3/src/lib/libc -DPOSIX_MISTAKE
-I/mnt/ad1s3/src/lib/libc/locale -DBROKEN_DES -DPORTMAP -DDES_BUILTIN
-I/mnt/ad1s3/src/lib/libc/rpc -DYP -DHESIOD -Wsystem-headers -Werror -Wall

-Wno-format-y2k -Wno-uninitialized -c nslexer.c
at-y2k -Wno-uninitialized -c nslexer.c
/dev/stdout: In function `_nsyylex':
/dev/stdout:711: warning: label `find_rule' defined but not used
/mnt/ad1s3/src/lib/libc/net/nslexer.l: At top level:
/dev/stdout:1678: warning: `yy_flex_realloc' defined but not used
*** Error code 1