buildkernel fails in zlib (all)

[AN]

FreeBSD FBSD10 10.0-CURRENT FreeBSD 10.0-CURRENT #62 r249867: Wed Apr 24 
21:53:34 CDT 2013     root at FBSD10:/usr/obj/usr/src/sys/MYKERNEL  amd64

Trying to buildkernel at:
# svn info
Path: .
Working Copy Root Path: /usr/src
URL: svn://svn.freebsd.org/base/head
Repository Root: svn://svn.freebsd.org/base
Repository UUID: ccf9f872-aa2e-dd11-9fc8-001c23d0bc1f
Revision: 250001
Node Kind: directory
Schedule: normal
Last Changed Author: wkoszek
Last Changed Rev: 250001
Last Changed Date: 2013-04-27 18:59:15 -0500 (Sat, 27 Apr 2013)

fails with:

===> zlib (all)
cc -O2 -pipe -fno-strict-aliasing -Werror -D_KERNEL -DKLD_MODULE -nostdinc 
-DHAVE_KERNEL_OPTION_HEADERS -include 
/usr/obj/usr/src/sys/MYKERNEL/opt_global.h -I. -I@ -I@/contrib/altq 
-fno-common  -fno-omit-frame-pointer -I/usr/obj/usr/src/sys/MYKERNEL 
-mno-aes -mno-avx -mcmodel=kernel -mno-red-zone -mno-mmx -mno-sse 
-msoft-float  -fno-asynchronous-unwind-tables -ffreestanding 
-fstack-protector -std=iso9899:1999 -Qunused-arguments -fstack-protector 
-Wall -Wredundant-decls -Wnested-externs -Wstrict-prototypes 
-Wmissing-prototypes -Wpointer-arith -Winline -Wcast-qual  -Wundef 
-Wno-pointer-sign -fformat-extensions  -Wmissing-include-dirs 
-fdiagnostics-show-option  -Wno-error-tautological-compare 
-Wno-error-empty-body  -Wno-error-parentheses-equality -c 
/usr/src/sys/modules/zlib/../../net/zlib.c
ld  -d -warn-common -r -d -o zlib.ko zlib.o
:> export_syms
awk -f /usr/src/sys/conf/kmod_syms.awk zlib.ko  export_syms | xargs -J% 
objcopy % zlib.ko
objcopy --strip-debug zlib.ko
1 error
*** [buildkernel] Error code 2
1 error
*** [buildkernel] Error code 2
1 error


Is anyone else seeing this?