This returns immediately with 'UNKNOWN' if the external toolchain isn't
enabled, and also immediately adjusts sys.path regardless of OE_IMPORTS
handling to avoid the over-reliance upon that mechanism.
Signed-off-by: Christopher Larson <chris_larson@mentor.com>
Since the external toolchain is available at parse time, we can actually grab
the kernel version from the external toolchain sysroot and use that to
determine whether to apply the patch. Do so.
Signed-off-by: Christopher Larson <chris_larson@mentor.com>
Also provide external-common.bbclass to wrap its inclusion and setup
associated metadata. This will make easier to search sysroots for files
without pulling in the rest of the external toolchain class.
Signed-off-by: Christopher Larson <chris_larson@mentor.com>
