hg: jdk9/dev: 8150197: Integrate AIX fixes from build-infra

[magnus.ihse.bursie at oracle.com]

Changeset: 900e2e405414
Author:    simonis
Date:      2016-02-22 11:27 +0100
URL:       http://hg.openjdk.java.net/jdk9/dev/rev/900e2e405414

8150197: Integrate AIX fixes from build-infra
Reviewed-by: erikj

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