hg: jdk9/sandbox: 8077824: Introduce DefineNativeToolchain to handle toolchain configurations

[chris.hegarty at oracle.com]

Changeset: 519ce21e5def
Author:    erikj
Date:      2015-04-17 13:54 +0200
URL:       http://hg.openjdk.java.net/jdk9/sandbox/rev/519ce21e5def

8077824: Introduce DefineNativeToolchain to handle toolchain configurations
Reviewed-by: ihse, tbell

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