[OE-core] [PATCH 2/2] base: make feature backfilling happen earlier

[Enrico Scholz]

Phil Blundell <pb at pbcl.net> writes:

> This does seem rather like an abuse of DISTRO_FEATURES_BACKFILL.  Can
> you explain why you are doing it this way rather than just setting
> DISTRO_FEATURES directly to what you wanted?

I need a way to:

1. set some defaults on distribution base and avoid nasty details like
   mandatory ${DISTRO_FEATURES_LIBC} flags in the project configuration

2. allow to override these defaults on a per-project base

3. add features support by recipes/classes of my distribution

afaik, DISTRO_FEATURES_BACKFILL + _CONSIDERED exist to allow the first
two point without an '-=' operator which lacks in bitbake.

Of course, I could reinvent the wheel and write my own _CONSIDERED
mechanism.  But until now (resp. without the '=' => '?=' change), it
worked fine with DISTRO_FEATURES_BACKFILL.


Enrico