hg: jdk9/sandbox: Merge

[magnus.ihse.bursie at oracle.com]

Changeset: 65f36cea7776
Author:    ihse
Date:      2016-01-20 10:54 +0100
URL:       http://hg.openjdk.java.net/jdk9/sandbox/rev/65f36cea7776

Merge

! common/autoconf/flags.m4
! common/autoconf/generated-configure.sh
! common/autoconf/jdk-options.m4
! common/autoconf/spec.gmk.in
! make/common/NativeCompilation.gmk