hg: build-infra/jdk8: Actual support for cross compiling the hotspot repo.

[fredrik.ohrstrom at oracle.com]

Changeset: 3b3157b13d54
Author:    ohrstrom
Date:      2012-03-23 14:09 +0100
URL:       http://hg.openjdk.java.net/build-infra/jdk8/rev/3b3157b13d54

Actual support for cross compiling the hotspot repo.

! common/autoconf/configure
! common/autoconf/configure.ac
! common/autoconf/spec.gmk.in