Fix mac build (second attempt)

  It appears that the version of mac ld with
  -export_dynamic is pretty recent.

  Remove -export_dynamic to fix build for older
  mac versions (?)

(cherry picked from commit 8b5b69813ef4d718db2e38e51867883511a3eeea)

Change-Id: I272d4b2c95411cc8126f27468f5199ff932fc9ef
3 files changed