Automated report: NetBSD-current/i386 build failure

This is an automatically generated notice of a NetBSD-current/i386
build failure.

The failure occurred on babylon5.NetBSD.org, a NetBSD/amd64 host,
using sources from CVS date 2012.06.30.15.03.57.

An extract from the build.sh output follows:

    --- ar5416_xmit.o ---
    #   compile  XEN3_DOM0/ar5416_xmit.o
    /tmp/bracket/build/2012.06.30.15.03.57-i386/tools/bin/i486--netbsdelf-gcc -ffreestanding
-fno-zero-initialized-in-bss -O2 -fstack-protector -Wstack-protector --param ssp-buffer-size=1
-fno-strict-aliasing -std=gnu99 -Werror -Wall -Wno-main -Wno-format-zero-length -Wpointer-arith
-Wmissing-prototypes -Wstrict-prototypes -Wold-style-definition -Wswitch -Wshadow -Wcast-qual
-Wwrite-strings -Wno-unreachable-code -Wno-pointer-sign -Wno-attributes -Wno-sign-compare
-march=i686 --sysroot=/tmp/bracket/build/2012.06.30.15.03.57-i386/destdir -Di386 -I.
-I/tmp/bracket/build/2012.06.30.15.03.57-i386/obj/sys/arch/i386/compile/XEN3_DOM0/xen-ma
-I/tmp/bracket/build/2012.06.30.15.03.57-i386/src/sys/../common/include
-I/tmp/bracket/build/2012.06.30.15.03.57-i386/src/sys/arch -I/tmp/bracket/build/2012.0
 6.30.15.03.57-i386/src/sys -nostdinc -DMSGBUFSIZE=24576 -DDIAGNOSTIC -DMAXUSERS=32 -D_KERNEL
-D_KERNEL_OPT -std=gnu99 -I/tmp/bracket/build/2012.06.30.15.03.57-i386/src/sys/lib/libkern/../../
 ../common/lib/libc/quad
-I/tmp/bracket/build/2012.06.30.15.03.57-i386/src/sys/lib/libkern/../../../common/lib/libc/string
-I/tmp/bracket/build/2012.06.30.15.03.57-i386/src/sys/lib/libkern/../../../common/lib/libc/arch/i386/string
-I/tmp/bracket/build/2012.06.30.15.03.57-i386/src/sys/external/bsd/ipf
-I/tmp/bracket/build/2012.06.30.15.03.57-i386/src/sys/external/isc/atheros_hal/dist
-I/tmp/bracket/build/2012.06.30.15.03.57-i386/src/sys/external/isc/atheros_hal/ic
-I/tmp/bracket/build/2012.06.30.15.03.57-i386/src/sys/external/bsd/acpica/dist/include -c /tmp/bracket/build/2012.06.30.15.03.57-i386/src/sys/external/isc/atheros_hal/dist/ar5416/ar5416_xmit.c
    --- kern-GENERIC_USERMODE ---
    /tmp/bracket/build/2012.06.30.15.03.57-i386/src/sys/arch/usermode/usermode/thunk.c: In