Hi, Please review this change of test/lib/Makefile
New features:1) allow the Makefile to put artifacts/temporaries in a user-specified directory instead of in the source tree 2) split the build directories to allow parallel builds without risking one target messing with files used by another
bug: https://bugs.openjdk.java.net/browse/JDK-8080758 webrev: http://cr.openjdk.java.net/~iaberg/JDK-8080758/main.00/ /Ingemar
