CHK     include/linux/compile.h
  UPD     include/linux/compile.h
  CC      init/version.o
  LD      init/built-in.o
  LD      .tmp_vmlinux1
net/built-in.o(.text+0x205a8): In function `checkentry':
: undefined reference to `brnf_deferred_hooks'
net/built-in.o(.text+0x205d0): In function `checkentry':
: undefined reference to `brnf_deferred_hooks'
make[1]: *** [.tmp_vmlinux1] Error 1
make[1]: Leaving directory `/usr/src/linux-2.6.18'
make: *** [stamp-build] Error 2