Decouple alarm construction from setting to avoid races in MT code
diff --git a/grpc.def b/grpc.def
index ec266fc..097a727 100644
--- a/grpc.def
+++ b/grpc.def
@@ -65,6 +65,7 @@
     grpc_completion_queue_shutdown
     grpc_completion_queue_destroy
     grpc_alarm_create
+    grpc_alarm_set
     grpc_alarm_cancel
     grpc_alarm_destroy
     grpc_channel_check_connectivity_state