No I didn't -- I used the code. :-) This is "make oldconfig" with an argument
that says which oldconfig you want. (So, my description ain't so good.:-) So
the question is, is it good that it takes an argument? Maybe change the
makefile part of the patch so that "make oldconfig" takes an argument instead
of having a new target. That might be better. I'd be up for it if that's
what's wanted. The core of the patch is to scripts/Configure to allow a
".config" file to be specified.
In any case, I badly want some documentation on "make oldconfig", or whatever,
in the README so I don't have to re-figure out what I have to do every time.
And that's also in the patch.