hg: build-infra/jdk8: Fix config.guess for x86_64 darwin and make LDD optional.

[fredrik.ohrstrom at oracle.com]

Changeset: 69797952af29
Author:    ohrstrom
Date:      2012-02-21 14:35 +0100
URL:       http://hg.openjdk.java.net/build-infra/jdk8/rev/69797952af29

Fix config.guess for x86_64 darwin and make LDD optional.

Contributed by: staffan.larsen at oracle.com

! common/autoconf/build-aux/config.guess
! common/autoconf/configure
! common/autoconf/configure.ac