tronyx@wrekx:/usr/src/linux-headers-2.6.22-14-generic$ ls
arch    Documentation  include  Kbuild  Makefile        net       sound
block   drivers        init     kernel  mm              scripts   usr
crypto  fs             ipc      lib     Module.symvers  security
tronyx@wrekx:/usr/src/linux-headers-2.6.22-14-generic$ sudo make
  CHK     include/linux/version.h
  CHK     include/linux/utsrelease.h
make[1]: *** No rule to make target `arch/i386/kernel/asm-offsets.c', needed by `arch/i386/kernel/asm-offsets.s'.  Stop.
make: *** [prepare0] Error 2
tronyx@wrekx:/usr/src/linux-headers-2.6.22-14-generic$