funny behaviour of config /bsd

[Vim Visual]

Hi,

After a fresh install of o'bsd I am trying to enable ACPI on my laptop
but something is funny...

Setting "enable acpi" after config /bsd doesn't modify anything

Just in case of, here you are the steps I follow:

export CVSROOT=anoncvs at anoncvs.de.openbsd.org:/cvs
cd /usr; cvs checkout -P src/sys

sudo config -e -o /bsd.new /bsd

OpenBSD 4.0 (GENERIC) #1107: Sat Sep 16 19:15:58 MDT 2006
   deraadt at i386.openbsd.org:/usr/src/sys/arch/i386/compile/GENERIC
   Enter 'help' for information
   ukc> enable acpi

   and that's it....

   ukc> quit
   Kernel not modified

  I was expecting a "385 acpi0 enabled" ??!!! find acpi also yields nothing...

The next steps would be...

cd /usr/src/sys/arch/i386/conf
config GENERIC
cd ../compile/GENERIC
make clean && make depend && make
  [...lots of output...]
make install
rm /var/run/dmesg.boot

Any hint?

In any case thanks for you attention,

Pau