Kernel configuration missing ?

[chenggh]

Hi:
	Now I have the new problem. the make menuconfig is ok  but when i make the 
kernel there are some problems like this:

root at darkstar:/home/L4/tudos/l4linux-2.6.20# make O=./build/
/home/L4/tudos/l4linux-2.6.20/arch/l4/Makefile.l4conf:24: *** Could not 
determine L4 source directory. Configuration missing?.  Stop.
/home/L4/tudos/l4linux-2.6.20/arch/l4/Makefile.l4conf:24: *** Could not 
determine L4 source directory. Configuration missing?.  Stop.
  GEN     /home/L4/tudos/l4linux-2.6.20/build/Makefile
  HOSTLD  scripts/kconfig/conf
scripts/kconfig/conf -s arch/l4/Kconfig
/home/L4/tudos/l4linux-2.6.20/arch/l4/Makefile.l4conf:24: *** Could not 
determine L4 source directory. Configuration missing?.  Stop.
make[1]: *** No rule to make target 
`/home/L4/tudos/l4linux-2.6.20/build/Makeconf.l4conf', needed by 
`archprepare'.  Stop.
make: *** [_all] Error 2


	It seems the process of making l4linux-2.6.20 is very different from the 
process of making linux-2.6.20.  What is the problem ?
	strange warning. strange error.
													cheng