Reduce warning noise from autoconf
Make automake happy
Pull in current ld-version-script.m4 which fixes the issue documented here:
https://lists.gnu.org/archive/html/bug-gnulib/2010-08/msg00198.html

From c24a91405479e7e5bd2633173cf5a24eabbd75fc Mon Sep 17 00:00:00 2001
From: Nils Goroll <nils.goroll@uplex.de>
Date: Wed, 9 Jan 2013 19:45:14 +0100
Subject: [PATCH] make autocrap(tm_phk) tools happy

Reduce warning noise from autoconf
Make automake happy
Pull in current ld-version-script.m4 which fixes the issue documented here:
https://lists.gnu.org/archive/html/bug-gnulib/2010-08/msg00198.html