"Robert Haas" <robertmhaas@gmail.com> writes:
> Am I correct in thinking that the only thing we're really checking for
> here is whether a trivial posix_fadvise() call returns success? If
> so, is this test really worth doing?
Runtime tests performed during configure are generally a bad idea to
start with --- it's impossible to do any such thing in a
cross-compilation scenario, for example.
regards, tom lane