>    Um, /usr/include/sys/systm.h at line 169 says:
> 
>    #include <lib/libkern/libkern.h>
> 
>    This file doesn't exist anywhere but in the source tree... Are my default
>    include paths set wrong (i.e. should they include /usr/sys/src) or what?
> 
> Um, what the Hell are you trying to do?  systm.h is only supposed to
> be used inside the kernel.

I meet same problem on compiling Loadable Kernel Module. 
My countermeasure is use kernel source instead of /usr/include,
is this right way ?
--
soda@sra.co.jp		Software Research Associates, Inc., Japan
(Noriyuki Soda)		   software tools and technology group