bitbake.conf: add definition for BUILDSDK_CXXFLAGS
${BUILDSDK_CXXFLAGS} was introduced since
commit
55c83cb239df5faf5e2143fffca47f2f16931cb3
cross.bbclass: override TARGET_* flags
bitbake.conf has definitions for both ${BUILDSDK_CPPFLAGS} and
${BUILDSDK_CFLAGS} but there is none for ${BUILDSDK_CXXFLAGS}.
This was a regression as in the past, CXXFLAGS is the same as
CFLAGS in SDK environment.
Adding definition for ${BUILDSDK_CXXFLAGS} will resolve CXXFLAGS
being set wrongly in SDK environment.
[YOCTO #11769]
Signed-off-by: Chang Rebecca Swee Fun <rebecca.swee.fun.chang@intel.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
