Fix OVERFLOWADDRESS macro for powerpc64 builds. Thanks to Chris Arges of IBM.
Fix OVERFLOWADDRESS macro for powerpc64 builds.
Thanks to Chris Arges of IBM.

pyrovski/papi,pyrovski/papi,arm-hpc/papi,pyrovski/papi,pyrovski/papi,arm-hpc/papi,arm-hpc/papi,arm-hpc/papi,arm-hpc/papi,arm-hpc/papi,pyrovski/papi,pyrovski/papi,arm-hpc/papi,pyrovski/papi,pyrovski/papi