message: Do not use "-lrt" flag when building on macos.
  Also, the flag breaks the build on macos.
diff: @@ -31,6 +31,7 @@ cc_library(
  ],
  linkopts = ["-ldl"] + select({
  "//tensorflow:android": [],
  + "//tensorflow:darwin": [],
  "//tensorflow:ios": [],
  "//tensorflow:windows": [],
  "//conditions:default": ["-lrt"],
  