+#ifndef USART0_RXC_vect
+#if defined(USART_RXC_vect)
+#define USART0_RXC_vect USART_RXC_vect
+#elif defined(USART_RX_vect)
+#define USART0_RXC_vect USART_RX_vect
+#elif defined(USART0_RX_vect)
+#define USART0_RXC_vect USART0_RX_vect
+#else
+#if defined(SIG_USART0_RECV)
+#define USART0_RXC_vect SIG_USART0_RECV
+#elif defined(SIG_UART0_RECV)
+#define USART0_RXC_vect SIG_UART0_RECV
+#endif
+#endif