Where is CONFIG_KDB_BOOT_CONS defined?

Hello,

kernel in changeset 735:c93c6a2bbe6b doesn't compile
because CONFIG_KDB_BOOT_CONS is not defined.

===> kdb/generic/console.cc
cd kdb/generic/ && /usr/local/bin/gcc44 -nostdinc
-I/users/cordix/cordix/usr/obj/l4/include
-I/users/cordix/cordix/usr/src/l4/kernel/src
-I/users/cordix/cordix/usr/src/l4/kernel/src/generic
-I/usr/local/lib/gcc44/gcc/x86_64-portbld-freebsd8.0/4.4.5/include
-Ux64 -Ux86 -Uk8 -Upc99 -Uv4 -Urr -D__SUBARCH__=x64 -D__ARCH__=x86
-D__CPU__=k8 -D__PLATFORM__=pc99 -D__API__=v4 -D__SCHED__=rr -imacros
/users/cordix/cordix/usr/obj/l4/config/config.h -imacros
/users/cordix/cordix/usr/src/l4/kernel/src/generic/macros.h -include
/users/cordix/cordix/usr/src/l4/kernel/src/generic/config.h  -include
/users/cordix/cordix/usr/src/l4/kernel/src/generic/types.h -fno-rtti
-fno-builtin  -fomit-frame-pointer -fno-exceptions -Wall
-Wno-non-virtual-dtor -Wno-format  -Wconversion -O2 -m64
-mcmodel=kernel -mno-red-zone  -march=k8   -fno-stack-protector
-Wno-conversion  -c
/users/cordix/cordix/usr/src/l4/kernel/kdb/generic/console.cc
/users/cordix/cordix/usr/src/l4/kernel/kdb/generic/console.cc: In
function 'void init_console()':
/users/cordix/cordix/usr/src/l4/kernel/kdb/generic/console.cc:44:
error: 'CONFIG_KDB_BOOT_CONS' was not declared in this scope
gmake[1]: *** [kdb/generic/console.o] Error 1
gmake[1]: Leaving directory `/users/cordix/cordix/usr/obj/l4'

Thanks,
-cpghost.

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