CUURENT kernel build broken - make[2]: exec(aicasm) failed (No such file or directory)

cc  -c -O2 -pipe -fno-strict-aliasing -std=c99 -g -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 -nostdinc -I. -I/usr/src/sys
-I/usr/src/sys/contrib/altq -I/usr/src/sys/contrib/ipfilter
-I/usr/src/sys/dev/ath -I/usr/src/sys/dev/ath/ath_hal
-I/usr/src/sys/contrib/dev/ath/ath_hal -I/usr/src/sys/contrib/ngatm
-I/usr/src/sys/dev/twa -I/usr/src/sys/dev/cxgb -I/usr/src/sys/dev/cxgbe
-I/usr/src/sys/contrib/libfdt -D_KERNEL -DHAVE_KERNEL_OPTION_HEADERS
-include opt_global.h -fno-omit-frame-pointer -mno-omit-leaf-frame-pointer
-mno-aes -mno-avx -mcmodel=kernel -mno-red-zone -mno-mmx -mno-sse
-msoft-float -fno-asynchronous-unwind-tables -ffreestanding
-fstack-protector /usr/src/sys/amd64/amd64/genassym.c
NM='nm' sh /usr/src/sys/kern/genassym.sh genassym.o > assym.s
awk -f /usr/src/sys/tools/vnode_if.awk /usr/src/sys/kern/vnode_if.src -p
awk -f /usr/src/sys/tools/vnode_if.awk /usr/src/sys/kern/vnode_if.src -q
awk -f /usr/src/sys/tools/vnode_if.awk /usr/src/sys/kern/vnode_if.src -h
awk -f /usr/src/sys/tools/acpi_quirks2h.awk
/usr/src/sys/dev/acpica/acpi_quirks
aicasm -nostdinc  -I. -I/usr/src/sys -I/usr/src/sys/contrib/altq
-I/usr/src/sys/contrib/ipfilter -I/usr/src/sys/dev/ath
-I/usr/src/sys/dev/ath/ath_hal -I/usr/src/sys/contrib/dev/ath/ath_hal
-I/usr/src/sys/contrib/ngatm -I/usr/src/sys/dev/twa -I/usr/src/sys/dev/cxgb
-I/usr/src/sys/dev/cxgbe -I/usr/src/sys/contrib/libfdt
-I/usr/src/sys/cam/scsi -I/usr/src/sys/dev/aic7xxx -o aic7xxx_seq.h -r
aic7xxx_reg.h -p aic7xxx_reg_print.c -i
/usr/src/sys/dev/aic7xxx/aic7xxx_osm.h /usr/src/sys/dev/aic7xxx/aic7xxx.seq
make[2]: exec(aicasm) failed (No such file or directory)
*** Error code 1

Stop.
make[2]: stopped in /usr/obj/usr/src/sys/GENERIC
*** Error code 1

Stop.
make[1]: stopped in /usr/src