In message <20060828090727.GP1396@snowdrop.l8s.co.uk>, David Laight writes:
>Code will then have to contain '#if FOO()' which generated a syntax error
>if opt_foo.h isn't defined.

Elegant!

>Any other thoughts/objections before I try to script the required edit?

One question:

What is the compelling reason to write two dozen or more different files,
rather than having a single "options.h" header that everyone includes?

Are we worried about dependency checking on changing options, or what?  I
haven't built a kernel in years in which I changed any options without a make
clean; does anyone do that still?  (I'm not saying they don't; I've just not
seen it.)

-s