ia32-base.inc: Use a weak default assignment for kernel provider and version

Using the default assignment operator (?=) requires the including recipes
to ensure to assign the Linux kernel provider and version prior to including
ia32-base.inc. By use the weak default assignment operator (??=), the assignment
can come after the inclusion, which avoids confusion and can lead to a more
natural recipe structure.

Signed-off-by: Darren Hart <dvhart@linux.intel.com>
Acked-by: Tom Zanussi <tom.zanussi@intel.com>

0 files changed, 0 insertions, 0 deletions