Kernel compiling troubles

cannot build a kernel on today's CURRENT.
...
===> ukbd (depend)
_at_ -> /usr/src/sys
machine -> /usr/src/sys/i386/include
awk -f _at_/tools/makeobjops.awk _at_/kern/bus_if.m -h
awk -f _at_/tools/makeobjops.awk _at_/kern/device_if.m -h
ln -s /usr/obj/usr/src/sys/PSL2/opt_usb.h opt_usb.h
echo "#define KBD_INSTALL_CDEV 1" > opt_kbd.h
ln -s /usr/obj/usr/src/sys/PSL2/opt_ukbd.h opt_ukbd.h
awk -f _at_/tools/usbdevs2h.awk _at_/dev/usb/usbdevs -h
make: don't know how to make ukbdmap.h. Stop
*** Error code 2

Stop in /usr/src/sys/modules.
*** Error code 1

Stop in /usr/obj/usr/src/sys/PSL2.
*** Error code 1

Stop in /usr/src.
*** Error code 1
...