This reverts commit 8793e7c7d2,
and fixes the build by building upstream NetBSD source as a
separate library that's then swallowed whole into libc_common.
Change-Id: I6c9317d8c48b5ccaf85a7b185bc07fb31176ff97
There were two bugs in our implementation. Intel found one, but another
remainined, and tracking upstream is the way forward for functions where
we add no value.
Change-Id: Ida9bac0293fb2c4cbc942b1e0515ee0477c6538b
