Jukka Marin writes:
 > Maybe there should be one config file with all existing options?  I have
 > thought 'GENERIC' was the one, but it seems I was wrong.  When I compile
 > a kernel for a new machine, I start with 'GENERIC' by copying it under a
 > new name and editing the copy as I need.  If we had an 'ALLOPTIONS' file,
 > users' own config files could be based on that.

The Amiga GENERIC config file supposedly does this.  I think it has
some options commented out, but at least they're listed.