hg: build-infra/jdk7: More work to get it to compile on Windows.

[fredrik.ohrstrom at oracle.com]

Changeset: 3a83deb86ae9
Author:    ohrstrom
Date:      2011-10-20 22:47 +0200
URL:       http://hg.openjdk.java.net/build-infra/jdk7/rev/3a83deb86ae9

More work to get it to compile on Windows.

! common/config/cores.m4
! common/config/platform.m4
! common/config/spec.gmk.in
! common/src/uncygdrive.c
! configure
! configure.ac