[7u6] Approval request: 7171653 32-bit cross-compile on 64-bit build host generates 64-bit data for awt/X11 leading to crash

[David Holmes]

This fix makes a minor change to the build instructions when 
cross-compiling for 32-bit on a 64-bit host.

The JDK 8 changeset is here:
 http://hg.openjdk.java.net/jdk8/build/jdk/rev/8b4dd321b8a2

Review email threads:

http://mail.openjdk.java.net/pipermail/build-dev/2012-May/006206.html

JDK 8 webrev:

http://cr.openjdk.java.net/~dholmes/7171653/webrev/

The 7u webrev is simplified as the build-infra makefiles fix is not needed:

http://cr.openjdk.java.net/~dholmes/7171653/webrev.7u/

Thanks,
David