updates to build scripts

[Stephen Bannasch]

At 10:34 AM -0500 5/16/11, Charles Oliver Nutter wrote:
>Very nice, thanks. I've been using your scripts to stick to MLVM head
>lately. Aside from the usual frustration of riding the bleeding edge,
>the builds work perfectly.
>
>Does anyone know about the dev cycle for the macosx port? I almost
>wonder if it would be possible to rebase the patches against that
>instead of against bsd-port, so we could get universal builds. I'd
>love to be able to test 32-bit and 64-bit MLVM in the same JDK...

They now seem to be pulling in upstream changes quite quickly.

Last Thursday they pulled in jdk7-b141:

  http://hg.openjdk.java.net/macosx-port/macosx-port/hotspot/rev/66b35d6aefbe