RFR (XXS): 7142616: MAC: Honor ALT_EXPORT_PATH overrides from JDK control builds

[Daniel D. Daugherty]

Hi,
>
> Typical JDK control builds override EXPORT_PATH to define where to find
> freshly built HotSpot libraries. On Mac OS X, the override is broken.
> Below is a solution to this problem, as well as a solution to missing
> Xusage.txt files on 64-bit only builds.
>
> This fix needs to be included in the push to master to prevent RE builds
> from failing with the same problem. HotSpot and the JDK repos will build
> fine separately, but fail when built in tandem such as control builds
> through JPRT and RE official promotions. I'd like to request a PIT
> waiver to integrate this build-only change.
>
> WEBREV:
>    http://cr.openjdk.java.net/~jmelvin/7142616/webrev.00

Thumbs up!

make/bsd/makefiles/defs.make
     No comments.

make/bsd/makefiles/universal.gmk
     No comments.

Dan


>
> JPRT RUN: (internal)
>
> http://prt-web.us.oracle.com//archive/2012/02/2012-02-04-212853.jmelvin.jdk7u-dev 
>
>
> TESTING:
>    Builds permuting over 32/64-bit, manual/jprt, hotspot/jdk (or both),
>      Apple/Oracle BOOTDIRs, JDK7/JDK8...
>    SPECjbb2005 testsuite manual runs
>
> Feedback welcome.
>
> Jim