svn commit: r277204 - head/sys/amd64/conf

[John-Mark Gurney]

Adrian Chadd wrote this message on Fri, Jan 16, 2015 at 10:43 -0800:
> When I've done what you're doing, I end up having these options in my
> minimal config file so opt_xxx.h is correctly populated. That way when
> I point SYSDIR (or whichever variable it is) at the configured kernel
> directory with the opt_xxx.h files, it all works out correctly.
> 
> (I still think we shouldn't be relying on "defaults", but should ship
> the opt_xxx.h files or something to derive the opt_xxx.h and makefile
> config bits so things like external module building is possible
> against a kernel. Or, we just kill all module options that change
> behaviour/ABI of things in an incompatible way.)

I have the commands that are able to stash the opt files in a kernel
section, and then be able to extract them again so that when you build
a kernel module it will use the correct options to match the kernel..

This is most useful for things like PAE which have a big impact...

-- 
  John-Mark Gurney				Voice: +1 415 225 5579

     "All that I will do, has been done, All that I have, has not."