Platform i386.

I'm trying to compile a current kernel with IPSEC.  If I uncomment:

prefix ../crypto-us/sys
cinclude "conf/files.crypto-us"
prefix   

config complains:

cannot open ../../../../../crypto-us/sys/arch/i386/conf/GENERIC.local for reading: 
No such file or directory

Is there a FAQ or something that explains where these come from?  I've been sup'ng 
for a while.  I'm clueless about how to proceed with this.

I searched the mail archive and found a lot of useful hints on what to do when 
I get a kernel built.  I'm having a little trouble with the "a kernel built" part.

TIA,
Paul
newhouse@rockhead.com