message: Remove -pthread when compiling for WebAssembly.
diff: @@ -338,6 +338,7 @@ def tf_copts(
  }) +
  select({
  clean_dep("//tensorflow:android"): android_copts,
  + clean_dep("//tensorflow:emscripten"): [],
  clean_dep("//tensorflow:macos"): [],
  clean_dep("//tensorflow:windows"): get_win_copts(is_external),
  clean_dep("//tensorflow:ios"): [],
  