Mac build fixes.

This gets us pretty close. There are a few problems with libraries we depend
on (system/core/liblog and external/icu4c) that I have workarounds for, and
a problem with gtest that I haven't yet worked around that prevents us from
linking any of the tests. But this at least gives us a Mac dex2oat binary.

Change-Id: Iac39a6c2963c3d37ab2165d7d1a70e303ba22c45
11 files changed
tree: dc11a1165c0f145cf3e6b5edc16bea8b57ba62fe
  2. build/
  3. jdwpspy/
  4. src/
  5. test/
  6. tools/