[PATCH] Don't add nis subdir for new architectures

[Joseph Myers]

On Wed, 4 Jul 2018, Andreas Schwab wrote:

> +* Future architecture ports will no longer build a compatibility libnsl
> +  shared library, and --enable-obsolete-nsl will be ignored on those
> +  architectures.

> +This option has no effect on architectures that were added after the
> +2.27 release.

There's ambiguity here about new ABIs for existing architectures.  (Since 
they should be like new architectures regarding symbol versions, they 
should also be like new architectures in this regard.)

-- 
Joseph S. Myers
joseph@codesourcery.com