On Sun, 21 Nov 1999 09:32:43 -0500
     Bill Sommerfeld <sommerfeld@orchard.arlington.ma.us> wrote:

>Any chance your source tree is corrupted?

There is no "chance" at all.  It is a certainty beyond chance or doubt.
Immediately prior to reading your mail, I discovered that several includes 
files in the source tree have length 0 .... Grrrr.

That's it, thanks.  I'll repopulate the tree from the tar_files.

>This looks very much like sys/arch/i386/include/frame.h somehow got
>trashed. "struct trapframe" is declared in <machine/frame.h>, which
>is always included by <machine/cpu.h>.

Thanks,
Paul