RFC: Disable NIO2 by default

[Mark Wielaard]

On Fri, 2009-02-20 at 11:01 +0000, Andrew John Hughes wrote:
> This patch disables NIO2 in the default build.
> 
> Ok to commit?
> 
> 2009-02-20  Andrew John Hughes  <ahughes at redhat.com>
> 
> 	* configure.ac:
> 	Disable NIO2 by default.

I think this is a good idea until we have some compiler configure check
that can figure out if it is possible to compile the code before the
full build.

Thanks,

Mark