If glibc is newer on the host than in uninative, the failure mode is
pretty nasty for clusters where the sstate is shared, including the Yocto
Project autobuilder.
This check aborts the use of uninative in such scenarios where a newer
glibc version appears and avoids corruption of sstate caches.
We use ldd to check the glibc version since that is included in libc-bin
(or equivalent) which locales use so it should always be present.
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
