3 files changed, 14 insertions, 0 deletions
diff --git a/LUFA/Drivers/Peripheral/AVR8/Serial_AVR8.c b/LUFA/Drivers/Peripheral/AVR8/Serial_AVR8.c
index f391c06e0..89d75bf85 100644
--- a/LUFA/Drivers/Peripheral/AVR8/Serial_AVR8.c
+++ b/LUFA/Drivers/Peripheral/AVR8/Serial_AVR8.c
@@ -28,6 +28,9 @@
   this software.
 */
 
+#include "../../../Common/Common.h"
+#if (ARCH == ARCH_AVR8)
+
 #define  __INCLUDE_FROM_SERIAL_C
 #include "../Serial.h"
 
@@ -112,3 +115,5 @@ void Serial_CreateBlockingStream(FILE* Stream)
 
 	*Stream = (FILE)FDEV_SETUP_STREAM(Serial_putchar, Serial_getchar_Blocking, _FDEV_SETUP_RW);
 }
+
+#endif
diff --git a/LUFA/Drivers/Peripheral/AVR8/TWI_AVR8.c b/LUFA/Drivers/Peripheral/AVR8/TWI_AVR8.c
index 34e641514..45477fd52 100644
--- a/LUFA/Drivers/Peripheral/AVR8/TWI_AVR8.c
+++ b/LUFA/Drivers/Peripheral/AVR8/TWI_AVR8.c
@@ -28,6 +28,9 @@
   this software.
 */
 
+#include "../../../Common/Common.h"
+#if (ARCH == ARCH_AVR8)
+
 #define  __INCLUDE_FROM_TWI_C
 #include "../TWI.h"
 
@@ -201,3 +204,4 @@ uint8_t TWI_WritePacket(const uint8_t SlaveAddress,
 	return ErrorCode;
 }
 
+#endif
diff --git a/LUFA/Drivers/Peripheral/XMEGA/Serial_XMEGA.c b/LUFA/Drivers/Peripheral/XMEGA/Serial_XMEGA.c
index accdc659f..8ec0390f3 100644
--- a/LUFA/Drivers/Peripheral/XMEGA/Serial_XMEGA.c
+++ b/LUFA/Drivers/Peripheral/XMEGA/Serial_XMEGA.c
@@ -28,6 +28,9 @@
   this software.
 */
 
+#include "../../../Common/Common.h"
+#if (ARCH == ARCH_XMEGA)
+
 #define  __INCLUDE_FROM_SERIAL_C
 #include "../Serial.h"
 
@@ -115,3 +118,5 @@ void Serial_CreateBlockingStream(FILE* Stream)
 
 	*Stream = (FILE)FDEV_SETUP_STREAM(Serial_putchar, Serial_getchar_Blocking, _FDEV_SETUP_RW);
 }
+
+#endif