There is no new autoconf release, and it seems like there will unlikely be one
<http://lists.gnu.org/archive/html/autoconf/2016-07/msg00017.html>.

This will allow us to support <arch>-apple-ios properly.

These have been taken from
- http://git.savannah.gnu.org/gitweb/?p=config.git;a=blob_plain;f=config.guess
- http://git.savannah.gnu.org/gitweb/?p=config.git;a=blob_plain;f=config.sub

Reviewers: austin, hvr, bgamari

Reviewed By: bgamari

Subscribers: rwbarton, thomie

Differential Revision: https://phabricator.haskell.org/D3558

The new versions should work better under MSYS2

A few submodules' `config.{guess,sub}` files were updated as well

With this commit, all config.{guess,sub} files in the GHC tree have the md5sums

    0fb81517303511f05a01b14f41cec2cf  config.guess
    d2a165dceaa5ac1edba3c512f6ca7bd1  config.sub

This addresses #9597

This updates the files to the versions bundled with GNU automake 1.13.3

Signed-off-by: Herbert Valerio Riedel <hvr@gnu.org>

In particular, config.guess should now know about x86_64-pc-solaris2

Synched with versions from autoconf 2.59

Updated to match latest versions from autoconf repository

Update config.guess and config.sub from GNU; a bug was reported in the
previous versions.

Grab the latest versions of config.guess and config.sub from GNU.

platform definitions for PPC/MacOSX

Pulled in latest versions from autoconf 2.13.  Necessary for OpenBSD port.

Prepared to support i?86-*-mingw32

Bulk of final changes for 2.01

partain 1.3 changes to 960626

Initial revision