We were trying to inject cached configure variables via
EXTRA_OECONF, but that was not working due to the fact
that gcc configure is called recursively via makefiles
and hence these were getting lost.
These backports from master fixes the problem by
defining the options in configure itself
dl_iterate_phdr is provided by musl as well, so lets
not depend on glibc defines like inhibit_libc alone
Signed-off-by: Khem Raj <raj.khem@gmail.com> Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
