There's probably not much reason why a filtered set of OPTS can't be accepted. I haven't looked this over yet but this code should probably handle the filtering:

http://overlays.gentoo.org/proj/python/changeset/171

from: https://bugs.gentoo.org/show_bug.cgi?id=282474#c4

-Doug

On Wed, Oct 21, 2009 at 6:03 PM, Zac Medico <zmedico@gentoo.org> wrote:
Arthur D. wrote:
> To Zac:
>> I'd suggest passing the -p option to revdep-rebuild on the command
>> line. That's how I always do it. Then you can run it again and it's
>> supposed to cache the result (if you don't use the -i option).
> I know how to pass options on command line. I was asking about changing
> default behaviour to respect emerge default options out-of-box. Passing
> same options every time is not a good way of doing things, no?

Yeah, I think your right. I suppose that revdep-rebuild could simply
assume that the default options are good and allow the user to
specify --ignore-default-opts if necessary. The only options that I
think would conflict are --update, --selective, and --noreplace.
--
Thanks,
Zac