variadic macro warning on mac os

[oxycoder]

XCode give warning when declare message type as below:

enum class MessageType : int
{
  ENTER_SERVER = 0,
  COUNT
};

YOJIMBO_DECLARE_MESSAGE_TYPE(static_cast<int>(MessageType::ENTER_SERVER), EnterServer)

happen on this line

 #define YOJIMBO_NEW( a, T, ... ) ( new ( (a).Allocate( sizeof(T), __FILE__, __LINE__ ) ) T(__VA_ARGS__) )

XCode 10.3
Mac OS Mojave

Currently i'm suppress the warning by add complier flag -Wno-gnu-zero-variadic-macro-arguments

Is there any better workaround for this problem?