1 files changed, 6 insertions, 20 deletions
diff --git a/cores/arduino/HardwareSerial.cpp b/cores/arduino/HardwareSerial.cpp
index 794a7be..6e623d6 100644
--- a/cores/arduino/HardwareSerial.cpp
+++ b/cores/arduino/HardwareSerial.cpp
@@ -104,24 +104,16 @@ inline void store_char(unsigned char c, ring_buffer *buffer)
 #if !defined(USART0_RX_vect) && defined(USART1_RX_vect)
 // do nothing - on the 32u4 the first USART is USART1
 #else
-#if !defined(USART_RX_vect) && !defined(SIG_USART0_RECV) && \
-    !defined(SIG_UART0_RECV) && !defined(USART0_RX_vect) && \
-	!defined(SIG_UART_RECV)
+#if !defined(USART_RX_vect) && !defined(USART0_RX_vect)
   #error "Don't know what the Data Received vector is called for the first UART"
 #else
   void serialEvent() __attribute__((weak));
   void serialEvent() {}
   #define serialEvent_implemented
 #if defined(USART_RX_vect)
-  SIGNAL(USART_RX_vect)
-#elif defined(SIG_USART0_RECV)
-  SIGNAL(SIG_USART0_RECV)
-#elif defined(SIG_UART0_RECV)
-  SIGNAL(SIG_UART0_RECV)
+  ISR(USART_RX_vect)
 #elif defined(USART0_RX_vect)
-  SIGNAL(USART0_RX_vect)
-#elif defined(SIG_UART_RECV)
-  SIGNAL(SIG_UART_RECV)
+  ISR(USART0_RX_vect)
 #endif
   {
   #if defined(UDR0)
@@ -149,7 +141,7 @@ inline void store_char(unsigned char c, ring_buffer *buffer)
   void serialEvent1() __attribute__((weak));
   void serialEvent1() {}
   #define serialEvent1_implemented
-  SIGNAL(USART1_RX_vect)
+  ISR(USART1_RX_vect)
   {
     if (bit_is_clear(UCSR1A, UPE1)) {
       unsigned char c = UDR1;
@@ -158,15 +150,13 @@ inline void store_char(unsigned char c, ring_buffer *buffer)
       unsigned char c = UDR1;
     };
   }
-#elif defined(SIG_USART1_RECV)
-  #error SIG_USART1_RECV
 #endif
 
 #if defined(USART2_RX_vect) && defined(UDR2)
   void serialEvent2() __attribute__((weak));
   void serialEvent2() {}
   #define serialEvent2_implemented
-  SIGNAL(USART2_RX_vect)
+  ISR(USART2_RX_vect)
   {
     if (bit_is_clear(UCSR2A, UPE2)) {
       unsigned char c = UDR2;
@@ -175,15 +165,13 @@ inline void store_char(unsigned char c, ring_buffer *buffer)
       unsigned char c = UDR2;
     };
   }
-#elif defined(SIG_USART2_RECV)
-  #error SIG_USART2_RECV
 #endif
 
 #if defined(USART3_RX_vect) && defined(UDR3)
   void serialEvent3() __attribute__((weak));
   void serialEvent3() {}
   #define serialEvent3_implemented
-  SIGNAL(USART3_RX_vect)
+  ISR(USART3_RX_vect)
   {
     if (bit_is_clear(UCSR3A, UPE3)) {
       unsigned char c = UDR3;
@@ -192,8 +180,6 @@ inline void store_char(unsigned char c, ring_buffer *buffer)
       unsigned char c = UDR3;
     };
   }
-#elif defined(SIG_USART3_RECV)
-  #error SIG_USART3_RECV
 #endif
 
 void serialEventRun(void)