Merge pull request apple#5 from dgrove-oss/linux-port-hdd-cp2

libdispatch now builds on Linux and ping/pong test runs successfully.

Signed-off-by: Daniel A. Steffen <[email protected]>

Author: das

PATCHES

@@ -214,3 +214,4 @@ github commits starting with 29bdc2f from
 [a60acd6] APPLIED rdar://23661056
 [39ac720] APPLIED rdar://23705483
 [acd56f6] APPLIED rdar://23754944
+[394d9a1] APPLIED rdar://23772602