configure: fixup clang stupidity
authorJens Axboe <axboe@fb.com>
Tue, 30 Jun 2015 02:46:31 +0000 (20:46 -0600)
committerJens Axboe <axboe@fb.com>
Tue, 30 Jun 2015 02:46:31 +0000 (20:46 -0600)
commit94815a5c8366a9290167e8539f29994c2d43d15c
tree12684850cf71c985f59c8628b31ac21ac940f837
parent3fb1aa3074b085273a1a80149527d9ac9b3ef1e5
configure: fixup clang stupidity

Doesn't like doing _Static_assert() on our structure offset
definition:

error: static_assert expression is not an integral constant expression

Lets just include that in the configure test, so we can avoid using
_Static_assert() if that kind of check fails.

Signed-off-by: Jens Axboe <axboe@fb.com>
configure