base.bbclass: Update the preferred_ml_updates
When processing the blacklists, we should avoid cross-canadian packages, as they
will not have any multilib prefixes to expand.
Similarly look for "virtual/nativesdk-" in addition to the existing "nativesdk-".
These items should also be ignored.
Finally, in order to avoid undeterministic variable key expansion, such as:
MYVAR = "foo"
PREFERRED_PROVIDER_${MYVAR} = "bar"
PREFERRED_PROVIDER_foo = "foobar"
during the multilib processing of PREFERRED_VERSION and PREFERRED_PROVIDER,
the code was changed to rename the variable key, to the final key. This along
with the existing code avoids the problems.
(From OE-Core rev:
1416613e94af46c6e74532bca0f026d1540becbb)
Signed-off-by: Mark Hatle <mark.hatle@windriver.com>
Signed-off-by: Saul Wold <sgw@linux.intel.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>