PATCH: Configure x86_64 in sysdeps/x86_64/preconfigure

[Joseph S. Myers]

On Wed, 21 Mar 2012, Roland McGrath wrote:

> I think that any compilation test should be done using autoconf macros
> rather than manual sh code like this.  i.e., write a preconfigure.in
> instead.  I don't think grepping -E output is a good idea.  Instead, you
> can write a compile test that does something like:

Note that there are no preexisting preconfigure.in files in libc or ports 
(although there is a Makefile rule for building them).

-- 
Joseph S. Myers
joseph@codesourcery.com