llvm dev - Sep 2010 - [LLVMdev] "make" errors

Hey all, 

I updated my local llvm code, however, I cannot build any more. Here
is the error: 

  make: *** No rule to make target `/Makefile', needed by `Makefile'. 
Stop

The revision I am using is "114955", and the machine I am using is an
iMac running Mac OS X 10.6.4 (10F569). On the same machine I can build
the revision "108330". Moreover, I can build the revision
"114955" on
my laptop. I also compare the the Makefiles generated on my laptop and
the iMac, and they are the same.

So, I am wondering if the above error is caused by the incorrect
variable settings. How can I fix the above error?

Thanks!

Best, 
Xiaolong

> 
> I updated my local llvm code, however, I cannot build any more. Here
> is the error: 
> 
>   make: *** No rule to make target `/Makefile', needed by
`Makefile'.  Stop
> 
I fixed. My system broken just. And now I can build after restarting
the system.

Xiaolong