[yocto] local.conf confusion

[Greg Wilson-Lindberg]

Hello list,

I've run into a confusion that should be simple. I've got a build based on sumo, at the bottom of my local.conf file is the line:

include conf/distro/include/${MACHINE}.pre.inc

This should be straight forward, just find the conf/distro/include directory and all of the *.pre.inc files should be there. I just searched all of the sources directory for  '*.pre.inc' and I get nothing. I'm building for a raspberry pi3, so I would expect at least 'raspberry*.inc', still nothing. I'm not getting an error for bitbake not being able to find the file.

So where do I find the machine include files?

Regards,
Greg Wilson-Lindberg