commit 17026d03b0cc9969895f31c6d81d0aae2aff8f80
author Andrew Hsieh <andrewhsieh@google.com> Fri Apr 25 23:23:25 2014 -0700
committer Andrew Hsieh <andrewhsieh@google.com> Sun Apr 27 17:54:35 2014 -0700
tree a2d5d0f162df17d7927c239055e39ef39061e6a7
parent 6f517fc41b6f5e9e374da4b109e70c960b17a83c

Rename arch-x86_64/usr/lib to arch-x86_64/usr/lib64

x86_64 compiler by default looks for lib64 first.
Although arch-x86_64 itself suggests 64-bit already, we want
lib64 because
1. for library paths to be named consistently in x86_64 land
2. Open future possibility that both 32-/64-bit co-exist
   in arch-x86/, with same usr/include, but distincts
   usr/lib and usr/lib64

Place a symlink lib -> lib64 before changes in build/ take effects

Change-Id: I073a67c4d1cc11705bb211a6a96434cecdf3457b