#endif
+#ifdef VC_ENABLE_API_V21
+# define CALL_VC_V21(F,...) CALL_VC_GENERAL(0x00020100, v21, F, __VA_ARGS__)
+#else
+# define CALL_VC_V21(F,...) CALL_VC_NOOP
+#endif
+
+
#ifdef VC_ENABLE_API_NET
# define CALL_VC_NET(F,...) CALL_VC_GENERAL(0x00010016, net, F, __VA_ARGS__)
#else