68 files changed, 277 insertions, 70 deletions
diff --git a/Bootloaders/CDC/makefile b/Bootloaders/CDC/makefile
index 346912c64..abc7c82a3 100644
--- a/Bootloaders/CDC/makefile
+++ b/Bootloaders/CDC/makefile
@@ -494,7 +494,10 @@ end:
 
 # Display size of file.
 HEXSIZE = $(SIZE) --target=$(FORMAT) $(TARGET).hex
-ELFSIZE = $(SIZE) --mcu=$(MCU) --format=avr $(TARGET).elf
+ELFSIZE = $(SIZE) $(MCU_FLAG) $(FORMAT_FLAG) $(TARGET).elf
+MCU_FLAG = $(shell $(SIZE) --help | grep -- --mcu > /dev/null && echo --mcu=$(MCU) )
+FORMAT_FLAG = $(shell $(SIZE) --help | grep -- --format=.*avr > /dev/null && echo --format=avr )
+
 
 sizebefore:
 	@if test -f $(TARGET).elf; then echo; echo $(MSG_SIZE_BEFORE); $(ELFSIZE); \
diff --git a/Bootloaders/DFU/makefile b/Bootloaders/DFU/makefile
index deb53125f..f6178b5e5 100644
--- a/Bootloaders/DFU/makefile
+++ b/Bootloaders/DFU/makefile
@@ -495,7 +495,10 @@ end:
 
 # Display size of file.
 HEXSIZE = $(SIZE) --target=$(FORMAT) $(TARGET).hex
-ELFSIZE = $(SIZE) --mcu=$(MCU) --format=avr $(TARGET).elf
+ELFSIZE = $(SIZE) $(MCU_FLAG) $(FORMAT_FLAG) $(TARGET).elf
+MCU_FLAG = $(shell $(SIZE) --help | grep -- --mcu > /dev/null && echo --mcu=$(MCU) )
+FORMAT_FLAG = $(shell $(SIZE) --help | grep -- --format=.*avr > /dev/null && echo --format=avr )
+
 
 sizebefore:
 	@if test -f $(TARGET).elf; then echo; echo $(MSG_SIZE_BEFORE); $(ELFSIZE); \
diff --git a/Demos/Device/ClassDriver/AudioInput/makefile b/Demos/Device/ClassDriver/AudioInput/makefile
index afe724932..0df14ea44 100644
--- a/Demos/Device/ClassDriver/AudioInput/makefile
+++ b/Demos/Device/ClassDriver/AudioInput/makefile
@@ -492,7 +492,10 @@ end:
 
 # Display size of file.
 HEXSIZE = $(SIZE) --target=$(FORMAT) $(TARGET).hex
-ELFSIZE = $(SIZE) --mcu=$(MCU) --format=avr $(TARGET).elf
+ELFSIZE = $(SIZE) $(MCU_FLAG) $(FORMAT_FLAG) $(TARGET).elf
+MCU_FLAG = $(shell $(SIZE) --help | grep -- --mcu > /dev/null && echo --mcu=$(MCU) )
+FORMAT_FLAG = $(shell $(SIZE) --help | grep -- --format=.*avr > /dev/null && echo --format=avr )
+
 
 sizebefore:
 	@if test -f $(TARGET).elf; then echo; echo $(MSG_SIZE_BEFORE); $(ELFSIZE); \
diff --git a/Demos/Device/ClassDriver/AudioOutput/makefile b/Demos/Device/ClassDriver/AudioOutput/makefile
index ed56f897e..110a9c4b6 100644
--- a/Demos/Device/ClassDriver/AudioOutput/makefile
+++ b/Demos/Device/ClassDriver/AudioOutput/makefile
@@ -494,7 +494,10 @@ end:
 
 # Display size of file.
 HEXSIZE = $(SIZE) --target=$(FORMAT) $(TARGET).hex
-ELFSIZE = $(SIZE) --mcu=$(MCU) --format=avr $(TARGET).elf
+ELFSIZE = $(SIZE) $(MCU_FLAG) $(FORMAT_FLAG) $(TARGET).elf
+MCU_FLAG = $(shell $(SIZE) --help | grep -- --mcu > /dev/null && echo --mcu=$(MCU) )
+FORMAT_FLAG = $(shell $(SIZE) --help | grep -- --format=.*avr > /dev/null && echo --format=avr )
+
 
 sizebefore:
 	@if test -f $(TARGET).elf; then echo; echo $(MSG_SIZE_BEFORE); $(ELFSIZE); \
diff --git a/Demos/Device/ClassDriver/DualVirtualSerial/makefile b/Demos/Device/ClassDriver/DualVirtualSerial/makefile
index acb74e82e..a3e1ea702 100644
--- a/Demos/Device/ClassDriver/DualVirtualSerial/makefile
+++ b/Demos/Device/ClassDriver/DualVirtualSerial/makefile
@@ -490,7 +490,10 @@ end:
 
 # Display size of file.
 HEXSIZE = $(SIZE) --target=$(FORMAT) $(TARGET).hex
-ELFSIZE = $(SIZE) --mcu=$(MCU) --format=avr $(TARGET).elf
+ELFSIZE = $(SIZE) $(MCU_FLAG) $(FORMAT_FLAG) $(TARGET).elf
+MCU_FLAG = $(shell $(SIZE) --help | grep -- --mcu > /dev/null && echo --mcu=$(MCU) )
+FORMAT_FLAG = $(shell $(SIZE) --help | grep -- --format=.*avr > /dev/null && echo --format=avr )
+
 
 sizebefore:
 	@if test -f $(TARGET).elf; then echo; echo $(MSG_SIZE_BEFORE); $(ELFSIZE); \
diff --git a/Demos/Device/ClassDriver/GenericHID/makefile b/Demos/Device/ClassDriver/GenericHID/makefile
index 8e1b067cf..2a445ea8f 100644
--- a/Demos/Device/ClassDriver/GenericHID/makefile
+++ b/Demos/Device/ClassDriver/GenericHID/makefile
@@ -490,7 +490,10 @@ end:
 
 # Display size of file.
 HEXSIZE = $(SIZE) --target=$(FORMAT) $(TARGET).hex
-ELFSIZE = $(SIZE) --mcu=$(MCU) --format=avr $(TARGET).elf
+ELFSIZE = $(SIZE) $(MCU_FLAG) $(FORMAT_FLAG) $(TARGET).elf
+MCU_FLAG = $(shell $(SIZE) --help | grep -- --mcu > /dev/null && echo --mcu=$(MCU) )
+FORMAT_FLAG = $(shell $(SIZE) --help | grep -- --format=.*avr > /dev/null && echo --format=avr )
+
 
 sizebefore:
 	@if test -f $(TARGET).elf; then echo; echo $(MSG_SIZE_BEFORE); $(ELFSIZE); \
diff --git a/Demos/Device/ClassDriver/Joystick/makefile b/Demos/Device/ClassDriver/Joystick/makefile
index 7c70ec0cd..b9df6f67c 100644
--- a/Demos/Device/ClassDriver/Joystick/makefile
+++ b/Demos/Device/ClassDriver/Joystick/makefile
@@ -490,7 +490,10 @@ end:
 
 # Display size of file.
 HEXSIZE = $(SIZE) --target=$(FORMAT) $(TARGET).hex
-ELFSIZE = $(SIZE) --mcu=$(MCU) --format=avr $(TARGET).elf
+ELFSIZE = $(SIZE) $(MCU_FLAG) $(FORMAT_FLAG) $(TARGET).elf
+MCU_FLAG = $(shell $(SIZE) --help | grep -- --mcu > /dev/null && echo --mcu=$(MCU) )
+FORMAT_FLAG = $(shell $(SIZE) --help | grep -- --format=.*avr > /dev/null && echo --format=avr )
+
 
 sizebefore:
 	@if test -f $(TARGET).elf; then echo; echo $(MSG_SIZE_BEFORE); $(ELFSIZE); \
diff --git a/Demos/Device/ClassDriver/Keyboard/makefile b/Demos/Device/ClassDriver/Keyboard/makefile
index ebd5b029a..0a89c9b93 100644
--- a/Demos/Device/ClassDriver/Keyboard/makefile
+++ b/Demos/Device/ClassDriver/Keyboard/makefile
@@ -490,7 +490,10 @@ end:
 
 # Display size of file.
 HEXSIZE = $(SIZE) --target=$(FORMAT) $(TARGET).hex
-ELFSIZE = $(SIZE) --mcu=$(MCU) --format=avr $(TARGET).elf
+ELFSIZE = $(SIZE) $(MCU_FLAG) $(FORMAT_FLAG) $(TARGET).elf
+MCU_FLAG = $(shell $(SIZE) --help | grep -- --mcu > /dev/null && echo --mcu=$(MCU) )
+FORMAT_FLAG = $(shell $(SIZE) --help | grep -- --format=.*avr > /dev/null && echo --format=avr )
+
 
 sizebefore:
 	@if test -f $(TARGET).elf; then echo; echo $(MSG_SIZE_BEFORE); $(ELFSIZE); \
diff --git a/Demos/Device/ClassDriver/KeyboardMouse/makefile b/Demos/Device/ClassDriver/KeyboardMouse/makefile
index 5955304fb..61565c929 100644
--- a/Demos/Device/ClassDriver/KeyboardMouse/makefile
+++ b/Demos/Device/ClassDriver/KeyboardMouse/makefile
@@ -490,7 +490,10 @@ end:
 
 # Display size of file.
 HEXSIZE = $(SIZE) --target=$(FORMAT) $(TARGET).hex
-ELFSIZE = $(SIZE) --mcu=$(MCU) --format=avr $(TARGET).elf
+ELFSIZE = $(SIZE) $(MCU_FLAG) $(FORMAT_FLAG) $(TARGET).elf
+MCU_FLAG = $(shell $(SIZE) --help | grep -- --mcu > /dev/null && echo --mcu=$(MCU) )
+FORMAT_FLAG = $(shell $(SIZE) --help | grep -- --format=.*avr > /dev/null && echo --format=avr )
+
 
 sizebefore:
 	@if test -f $(TARGET).elf; then echo; echo $(MSG_SIZE_BEFORE); $(ELFSIZE); \
diff --git a/Demos/Device/ClassDriver/MIDI/makefile b/Demos/Device/ClassDriver/MIDI/makefile
index fac283b31..25219a8ff 100644
--- a/Demos/Device/ClassDriver/MIDI/makefile
+++ b/Demos/Device/ClassDriver/MIDI/makefile
@@ -490,7 +490,10 @@ end:
 
 # Display size of file.
 HEXSIZE = $(SIZE) --target=$(FORMAT) $(TARGET).hex
-ELFSIZE = $(SIZE) --mcu=$(MCU) --format=avr $(TARGET).elf
+ELFSIZE = $(SIZE) $(MCU_FLAG) $(FORMAT_FLAG) $(TARGET).elf
+MCU_FLAG = $(shell $(SIZE) --help | grep -- --mcu > /dev/null && echo --mcu=$(MCU) )
+FORMAT_FLAG = $(shell $(SIZE) --help | grep -- --format=.*avr > /dev/null && echo --format=avr )
+
 
 sizebefore:
 	@if test -f $(TARGET).elf; then echo; echo $(MSG_SIZE_BEFORE); $(ELFSIZE); \
diff --git a/Demos/Device/ClassDriver/MassStorage/makefile b/Demos/Device/ClassDriver/MassStorage/makefile
index 5c9fe0571..7979c1e4c 100644
--- a/Demos/Device/ClassDriver/MassStorage/makefile
+++ b/Demos/Device/ClassDriver/MassStorage/makefile
@@ -493,7 +493,10 @@ end:
 
 # Display size of file.
 HEXSIZE = $(SIZE) --target=$(FORMAT) $(TARGET).hex
-ELFSIZE = $(SIZE) --mcu=$(MCU) --format=avr $(TARGET).elf
+ELFSIZE = $(SIZE) $(MCU_FLAG) $(FORMAT_FLAG) $(TARGET).elf
+MCU_FLAG = $(shell $(SIZE) --help | grep -- --mcu > /dev/null && echo --mcu=$(MCU) )
+FORMAT_FLAG = $(shell $(SIZE) --help | grep -- --format=.*avr > /dev/null && echo --format=avr )
+
 
 sizebefore:
 	@if test -f $(TARGET).elf; then echo; echo $(MSG_SIZE_BEFORE); $(ELFSIZE); \
diff --git a/Demos/Device/ClassDriver/MassStorageKeyboard/makefile b/Demos/Device/ClassDriver/MassStorageKeyboard/makefile
index 723dd91d6..d60f30eb8 100644
--- a/Demos/Device/ClassDriver/MassStorageKeyboard/makefile
+++ b/Demos/Device/ClassDriver/MassStorageKeyboard/makefile
@@ -493,7 +493,10 @@ end:
 
 # Display size of file.
 HEXSIZE = $(SIZE) --target=$(FORMAT) $(TARGET).hex
-ELFSIZE = $(SIZE) --mcu=$(MCU) --format=avr $(TARGET).elf
+ELFSIZE = $(SIZE) $(MCU_FLAG) $(FORMAT_FLAG) $(TARGET).elf
+MCU_FLAG = $(shell $(SIZE) --help | grep -- --mcu > /dev/null && echo --mcu=$(MCU) )
+FORMAT_FLAG = $(shell $(SIZE) --help | grep -- --format=.*avr > /dev/null && echo --format=avr )
+
 
 sizebefore:
 	@if test -f $(TARGET).elf; then echo; echo $(MSG_SIZE_BEFORE); $(ELFSIZE); \
diff --git a/Demos/Device/ClassDriver/Mouse/makefile b/Demos/Device/ClassDriver/Mouse/makefile
index d202a6a8c..0f84f740b 100644
--- a/Demos/Device/ClassDriver/Mouse/makefile
+++ b/Demos/Device/ClassDriver/Mouse/makefile
@@ -490,7 +490,10 @@ end:
 
 # Display size of file.
 HEXSIZE = $(SIZE) --target=$(FORMAT) $(TARGET).hex
-ELFSIZE = $(SIZE) --mcu=$(MCU) --format=avr $(TARGET).elf
+ELFSIZE = $(SIZE) $(MCU_FLAG) $(FORMAT_FLAG) $(TARGET).elf
+MCU_FLAG = $(shell $(SIZE) --help | grep -- --mcu > /dev/null && echo --mcu=$(MCU) )
+FORMAT_FLAG = $(shell $(SIZE) --help | grep -- --format=.*avr > /dev/null && echo --format=avr )
+
 
 sizebefore:
 	@if test -f $(TARGET).elf; then echo; echo $(MSG_SIZE_BEFORE); $(ELFSIZE); \
diff --git a/Demos/Device/ClassDriver/RNDISEthernet/makefile b/Demos/Device/ClassDriver/RNDISEthernet/makefile
index c3650e9da..1c48d94e9 100644
--- a/Demos/Device/ClassDriver/RNDISEthernet/makefile
+++ b/Demos/Device/ClassDriver/RNDISEthernet/makefile
@@ -509,7 +509,10 @@ end:
 
 # Display size of file.
 HEXSIZE = $(SIZE) --target=$(FORMAT) $(TARGET).hex
-ELFSIZE = $(SIZE) --mcu=$(MCU) --format=avr $(TARGET).elf
+ELFSIZE = $(SIZE) $(MCU_FLAG) $(FORMAT_FLAG) $(TARGET).elf
+MCU_FLAG = $(shell $(SIZE) --help | grep -- --mcu > /dev/null && echo --mcu=$(MCU) )
+FORMAT_FLAG = $(shell $(SIZE) --help | grep -- --format=.*avr > /dev/null && echo --format=avr )
+
 
 sizebefore:
 	@if test -f $(TARGET).elf; then echo; echo $(MSG_SIZE_BEFORE); $(ELFSIZE); \
diff --git a/Demos/Device/ClassDriver/VirtualSerial/makefile b/Demos/Device/ClassDriver/VirtualSerial/makefile
index 18c3be52f..bfd5c4884 100644
--- a/Demos/Device/ClassDriver/VirtualSerial/makefile
+++ b/Demos/Device/ClassDriver/VirtualSerial/makefile
@@ -490,7 +490,10 @@ end:
 
 # Display size of file.
 HEXSIZE = $(SIZE) --target=$(FORMAT) $(TARGET).hex
-ELFSIZE = $(SIZE) --mcu=$(MCU) --format=avr $(TARGET).elf
+ELFSIZE = $(SIZE) $(MCU_FLAG) $(FORMAT_FLAG) $(TARGET).elf
+MCU_FLAG = $(shell $(SIZE) --help | grep -- --mcu > /dev/null && echo --mcu=$(MCU) )
+FORMAT_FLAG = $(shell $(SIZE) --help | grep -- --format=.*avr > /dev/null && echo --format=avr )
+
 
 sizebefore:
 	@if test -f $(TARGET).elf; then echo; echo $(MSG_SIZE_BEFORE); $(ELFSIZE); \
diff --git a/Demos/Device/ClassDriver/VirtualSerialMouse/makefile b/Demos/Device/ClassDriver/VirtualSerialMouse/makefile
index 04141a50f..dd8cf19b5 100644
--- a/Demos/Device/ClassDriver/VirtualSerialMouse/makefile
+++ b/Demos/Device/ClassDriver/VirtualSerialMouse/makefile
@@ -490,7 +490,10 @@ end:
 
 # Display size of file.
 HEXSIZE = $(SIZE) --target=$(FORMAT) $(TARGET).hex
-ELFSIZE = $(SIZE) --mcu=$(MCU) --format=avr $(TARGET).elf
+ELFSIZE = $(SIZE) $(MCU_FLAG) $(FORMAT_FLAG) $(TARGET).elf
+MCU_FLAG = $(shell $(SIZE) --help | grep -- --mcu > /dev/null && echo --mcu=$(MCU) )
+FORMAT_FLAG = $(shell $(SIZE) --help | grep -- --format=.*avr > /dev/null && echo --format=avr )
+
 
 sizebefore:
 	@if test -f $(TARGET).elf; then echo; echo $(MSG_SIZE_BEFORE); $(ELFSIZE); \
diff --git a/Demos/Device/Incomplete/Sideshow/makefile b/Demos/Device/Incomplete/Sideshow/makefile
index 1565b991e..7e09f23b9 100644
--- a/Demos/Device/Incomplete/Sideshow/makefile
+++ b/Demos/Device/Incomplete/Sideshow/makefile
@@ -496,7 +496,10 @@ end:
 
 # Display size of file.
 HEXSIZE = $(SIZE) --target=$(FORMAT) $(TARGET).hex
-ELFSIZE = $(SIZE) --mcu=$(MCU) --format=avr $(TARGET).elf
+ELFSIZE = $(SIZE) $(MCU_FLAG) $(FORMAT_FLAG) $(TARGET).elf
+MCU_FLAG = $(shell $(SIZE) --help | grep -- --mcu > /dev/null && echo --mcu=$(MCU) )
+FORMAT_FLAG = $(shell $(SIZE) --help | grep -- --format=.*avr > /dev/null && echo --format=avr )
+
 
 sizebefore:
 	@if test -f $(TARGET).elf; then echo; echo $(MSG_SIZE_BEFORE); $(ELFSIZE); \
diff --git a/Demos/Device/Incomplete/TestAndMeasurement/TestAndMeasurement.c b/Demos/Device/Incomplete/TestAndMeasurement/TestAndMeasurement.c
index cab978a85..040cb345d 100644
--- a/Demos/Device/Incomplete/TestAndMeasurement/TestAndMeasurement.c
+++ b/Demos/Device/Incomplete/TestAndMeasurement/TestAndMeasurement.c
@@ -332,7 +332,7 @@ void TMC_Task(void)
 	
 	TMC_MessageHeader_t MessageHeader;
 	
-	/* Check if a TMC packet has been received */
+	/* Try to read in a TMC message from the interface, process if one is available */
 	if (ReadTMCHeader(&MessageHeader))
 	{
 		/* Indicate busy */
@@ -366,6 +366,12 @@ void TMC_Task(void)
 	IsTMCBulkOUTReset = false;
 }
 
+/** Attempts to read in the TMC message header from the TMC interface.
+ *
+ *  \param[out] MessageHeader  Pointer to a location where the read header (if any) should be stored
+ *
+ *  \return Boolean true if a header was read, false otherwise
+ */
 bool ReadTMCHeader(TMC_MessageHeader_t* const MessageHeader)
 {
 	/* Select the Data Out endpoint */
@@ -382,7 +388,7 @@ bool ReadTMCHeader(TMC_MessageHeader_t* const MessageHeader)
 	CurrentTransferTag = MessageHeader->Tag;
 	
 	/* Indicate if the command has been aborted or not */
-	return !IsTMCBulkOUTReset;
+	return !(IsTMCBulkOUTReset);
 }
 
 bool WriteTMCHeader(TMC_MessageHeader_t* const MessageHeader)
@@ -402,7 +408,7 @@ bool WriteTMCHeader(TMC_MessageHeader_t* const MessageHeader)
 	Endpoint_Write_Stream_LE(MessageHeader, sizeof(TMC_MessageHeader_t), StreamCallback_AbortINOnRequest);
 
 	/* Indicate if the command has been aborted or not */
-	return !IsTMCBulkINReset;
+	return !(IsTMCBulkINReset);
 }
 
 /** Stream callback function for the Endpoint stream write functions. This callback will abort the current stream transfer
diff --git a/Demos/Device/Incomplete/TestAndMeasurement/makefile b/Demos/Device/Incomplete/TestAndMeasurement/makefile
index 94e697eae..3351364b1 100644
--- a/Demos/Device/Incomplete/TestAndMeasurement/makefile
+++ b/Demos/Device/Incomplete/TestAndMeasurement/makefile
@@ -490,7 +490,10 @@ end:
 
 # Display size of file.
 HEXSIZE = $(SIZE) --target=$(FORMAT) $(TARGET).hex
-ELFSIZE = $(SIZE) --mcu=$(MCU) --format=avr $(TARGET).elf
+ELFSIZE = $(SIZE) $(MCU_FLAG) $(FORMAT_FLAG) $(TARGET).elf
+MCU_FLAG = $(shell $(SIZE) --help | grep -- --mcu > /dev/null && echo --mcu=$(MCU) )
+FORMAT_FLAG = $(shell $(SIZE) --help | grep -- --format=.*avr > /dev/null && echo --format=avr )
+
 
 sizebefore:
 	@if test -f $(TARGET).elf; then echo; echo $(MSG_SIZE_BEFORE); $(ELFSIZE); \
diff --git a/Demos/Device/LowLevel/AudioInput/makefile b/Demos/Device/LowLevel/AudioInput/makefile
index dc7fa47ee..27ae109e1 100644
--- a/Demos/Device/LowLevel/AudioInput/makefile
+++ b/Demos/Device/LowLevel/AudioInput/makefile
@@ -491,7 +491,10 @@ end:
 
 # Display size of file.
 HEXSIZE = $(SIZE) --target=$(FORMAT) $(TARGET).hex
-ELFSIZE = $(SIZE) --mcu=$(MCU) --format=avr $(TARGET).elf
+ELFSIZE = $(SIZE) $(MCU_FLAG) $(FORMAT_FLAG) $(TARGET).elf
+MCU_FLAG = $(shell $(SIZE) --help | grep -- --mcu > /dev/null && echo --mcu=$(MCU) )
+FORMAT_FLAG = $(shell $(SIZE) --help | grep -- --format=.*avr > /dev/null && echo --format=avr )
+
 
 sizebefore:
 	@if test -f $(TARGET).elf; then echo; echo $(MSG_SIZE_BEFORE); $(ELFSIZE); \
diff --git a/Demos/Device/LowLevel/AudioOutput/makefile b/Demos/Device/LowLevel/AudioOutput/makefile
index 9e61803e7..c8dcbd298 100644
--- a/Demos/Device/LowLevel/AudioOutput/makefile
+++ b/Demos/Device/LowLevel/AudioOutput/makefile
@@ -493,7 +493,10 @@ end:
 
 # Display size of file.
 HEXSIZE = $(SIZE) --target=$(FORMAT) $(TARGET).hex
-ELFSIZE = $(SIZE) --mcu=$(MCU) --format=avr $(TARGET).elf
+ELFSIZE = $(SIZE) $(MCU_FLAG) $(FORMAT_FLAG) $(TARGET).elf
+MCU_FLAG = $(shell $(SIZE) --help | grep -- --mcu > /dev/null && echo --mcu=$(MCU) )
+FORMAT_FLAG = $(shell $(SIZE) --help | grep -- --format=.*avr > /dev/null && echo --format=avr )
+
 
 sizebefore:
 	@if test -f $(TARGET).elf; then echo; echo $(MSG_SIZE_BEFORE); $(ELFSIZE); \
diff --git a/Demos/Device/LowLevel/DualVirtualSerial/makefile b/Demos/Device/LowLevel/DualVirtualSerial/makefile
index c9f49a559..2ee5ac6e2 100644
--- a/Demos/Device/LowLevel/DualVirtualSerial/makefile
+++ b/Demos/Device/LowLevel/DualVirtualSerial/makefile
@@ -490,7 +490,10 @@ end:
 
 # Display size of file.
 HEXSIZE = $(SIZE) --target=$(FORMAT) $(TARGET).hex
-ELFSIZE = $(SIZE) --mcu=$(MCU) --format=avr $(TARGET).elf
+ELFSIZE = $(SIZE) $(MCU_FLAG) $(FORMAT_FLAG) $(TARGET).elf
+MCU_FLAG = $(shell $(SIZE) --help | grep -- --mcu > /dev/null && echo --mcu=$(MCU) )
+FORMAT_FLAG = $(shell $(SIZE) --help | grep -- --format=.*avr > /dev/null && echo --format=avr )
+
 
 sizebefore:
 	@if test -f $(TARGET).elf; then echo; echo $(MSG_SIZE_BEFORE); $(ELFSIZE); \
diff --git a/Demos/Device/LowLevel/GenericHID/makefile b/Demos/Device/LowLevel/GenericHID/makefile
index abf347593..547f666b3 100644
--- a/Demos/Device/LowLevel/GenericHID/makefile
+++ b/Demos/Device/LowLevel/GenericHID/makefile
@@ -490,7 +490,10 @@ end:
 
 # Display size of file.
 HEXSIZE = $(SIZE) --target=$(FORMAT) $(TARGET).hex
-ELFSIZE = $(SIZE) --mcu=$(MCU) --format=avr $(TARGET).elf
+ELFSIZE = $(SIZE) $(MCU_FLAG) $(FORMAT_FLAG) $(TARGET).elf
+MCU_FLAG = $(shell $(SIZE) --help | grep -- --mcu > /dev/null && echo --mcu=$(MCU) )
+FORMAT_FLAG = $(shell $(SIZE) --help | grep -- --format=.*avr > /dev/null && echo --format=avr )
+
 
 sizebefore:
 	@if test -f $(TARGET).elf; then echo; echo $(MSG_SIZE_BEFORE); $(ELFSIZE); \
diff --git a/Demos/Device/LowLevel/Joystick/makefile b/Demos/Device/LowLevel/Joystick/makefile
index 329163ee8..7037ec677 100644
--- a/Demos/Device/LowLevel/Joystick/makefile
+++ b/Demos/Device/LowLevel/Joystick/makefile
@@ -490,7 +490,10 @@ end:
 
 # Display size of file.
 HEXSIZE = $(SIZE) --target=$(FORMAT) $(TARGET).hex
-ELFSIZE = $(SIZE) --mcu=$(MCU) --format=avr $(TARGET).elf
+ELFSIZE = $(SIZE) $(MCU_FLAG) $(FORMAT_FLAG) $(TARGET).elf
+MCU_FLAG = $(shell $(SIZE) --help | grep -- --mcu > /dev/null && echo --mcu=$(MCU) )
+FORMAT_FLAG = $(shell $(SIZE) --help | grep -- --format=.*avr > /dev/null && echo --format=avr )
+
 
 sizebefore:
 	@if test -f $(TARGET).elf; then echo; echo $(MSG_SIZE_BEFORE); $(ELFSIZE); \
diff --git a/Demos/Device/LowLevel/Keyboard/makefile b/Demos/Device/LowLevel/Keyboard/makefile
index 00892d9d8..eb48a2424 100644
--- a/Demos/Device/LowLevel/Keyboard/makefile
+++ b/Demos/Device/LowLevel/Keyboard/makefile
@@ -490,7 +490,10 @@ end:
 
 # Display size of file.
 HEXSIZE = $(SIZE) --target=$(FORMAT) $(TARGET).hex
-ELFSIZE = $(SIZE) --mcu=$(MCU) --format=avr $(TARGET).elf
+ELFSIZE = $(SIZE) $(MCU_FLAG) $(FORMAT_FLAG) $(TARGET).elf
+MCU_FLAG = $(shell $(SIZE) --help | grep -- --mcu > /dev/null && echo --mcu=$(MCU) )
+FORMAT_FLAG = $(shell $(SIZE) --help | grep -- --format=.*avr > /dev/null && echo --format=avr )
+
 
 sizebefore:
 	@if test -f $(TARGET).elf; then echo; echo $(MSG_SIZE_BEFORE); $(ELFSIZE); \
diff --git a/Demos/Device/LowLevel/KeyboardMouse/makefile b/Demos/Device/LowLevel/KeyboardMouse/makefile
index eeee41e06..e92fb23a7 100644
--- a/Demos/Device/LowLevel/KeyboardMouse/makefile
+++ b/Demos/Device/LowLevel/KeyboardMouse/makefile
@@ -490,7 +490,10 @@ end:
 
 # Display size of file.
 HEXSIZE = $(SIZE) --target=$(FORMAT) $(TARGET).hex
-ELFSIZE = $(SIZE) --mcu=$(MCU) --format=avr $(TARGET).elf
+ELFSIZE = $(SIZE) $(MCU_FLAG) $(FORMAT_FLAG) $(TARGET).elf
+MCU_FLAG = $(shell $(SIZE) --help | grep -- --mcu > /dev/null && echo --mcu=$(MCU) )
+FORMAT_FLAG = $(shell $(SIZE) --help | grep -- --format=.*avr > /dev/null && echo --format=avr )
+
 
 sizebefore:
 	@if test -f $(TARGET).elf; then echo; echo $(MSG_SIZE_BEFORE); $(ELFSIZE); \
diff --git a/Demos/Device/LowLevel/MIDI/makefile b/Demos/Device/LowLevel/MIDI/makefile
index 308933252..92fd68519 100644
--- a/Demos/Device/LowLevel/MIDI/makefile
+++ b/Demos/Device/LowLevel/MIDI/makefile
@@ -490,7 +490,10 @@ end:
 
 # Display size of file.
 HEXSIZE = $(SIZE) --target=$(FORMAT) $(TARGET).hex
-ELFSIZE = $(SIZE) --mcu=$(MCU) --format=avr $(TARGET).elf
+ELFSIZE = $(SIZE) $(MCU_FLAG) $(FORMAT_FLAG) $(TARGET).elf
+MCU_FLAG = $(shell $(SIZE) --help | grep -- --mcu > /dev/null && echo --mcu=$(MCU) )
+FORMAT_FLAG = $(shell $(SIZE) --help | grep -- --format=.*avr > /dev/null && echo --format=avr )
+
 
 sizebefore:
 	@if test -f $(TARGET).elf; then echo; echo $(MSG_SIZE_BEFORE); $(ELFSIZE); \
diff --git a/Demos/Device/LowLevel/MassStorage/makefile b/Demos/Device/LowLevel/MassStorage/makefile
index e1447cea2..4e8dd8c4d 100644
--- a/Demos/Device/LowLevel/MassStorage/makefile
+++ b/Demos/Device/LowLevel/MassStorage/makefile
@@ -492,7 +492,10 @@ end:
 
 # Display size of file.
 HEXSIZE = $(SIZE) --target=$(FORMAT) $(TARGET).hex
-ELFSIZE = $(SIZE) --mcu=$(MCU) --format=avr $(TARGET).elf
+ELFSIZE = $(SIZE) $(MCU_FLAG) $(FORMAT_FLAG) $(TARGET).elf
+MCU_FLAG = $(shell $(SIZE) --help | grep -- --mcu > /dev/null && echo --mcu=$(MCU) )
+FORMAT_FLAG = $(shell $(SIZE) --help | grep -- --format=.*avr > /dev/null && echo --format=avr )
+
 
 sizebefore:
 	@if test -f $(TARGET).elf; then echo; echo $(MSG_SIZE_BEFORE); $(ELFSIZE); \
diff --git a/Demos/Device/LowLevel/Mouse/makefile b/Demos/Device/LowLevel/Mouse/makefile
index 744da6b5a..348afedbd 100644
--- a/Demos/Device/LowLevel/Mouse/makefile
+++ b/Demos/Device/LowLevel/Mouse/makefile
@@ -490,7 +490,10 @@ end:
 
 # Display size of file.
 HEXSIZE = $(SIZE) --target=$(FORMAT) $(TARGET).hex
-ELFSIZE = $(SIZE) --mcu=$(MCU) --format=avr $(TARGET).elf
+ELFSIZE = $(SIZE) $(MCU_FLAG) $(FORMAT_FLAG) $(TARGET).elf
+MCU_FLAG = $(shell $(SIZE) --help | grep -- --mcu > /dev/null && echo --mcu=$(MCU) )
+FORMAT_FLAG = $(shell $(SIZE) --help | grep -- --format=.*avr > /dev/null && echo --format=avr )
+
 
 sizebefore:
 	@if test -f $(TARGET).elf; then echo; echo $(MSG_SIZE_BEFORE); $(ELFSIZE); \
diff --git a/Demos/Device/LowLevel/RNDISEthernet/makefile b/Demos/Device/LowLevel/RNDISEthernet/makefile
index 3e57640f7..8adb5312e 100644
--- a/Demos/Device/LowLevel/RNDISEthernet/makefile
+++ b/Demos/Device/LowLevel/RNDISEthernet/makefile
@@ -510,7 +510,10 @@ end:
 
 # Display size of file.
 HEXSIZE = $(SIZE) --target=$(FORMAT) $(TARGET).hex
-ELFSIZE = $(SIZE) --mcu=$(MCU) --format=avr $(TARGET).elf
+ELFSIZE = $(SIZE) $(MCU_FLAG) $(FORMAT_FLAG) $(TARGET).elf
+MCU_FLAG = $(shell $(SIZE) --help | grep -- --mcu > /dev/null && echo --mcu=$(MCU) )
+FORMAT_FLAG = $(shell $(SIZE) --help | grep -- --format=.*avr > /dev/null && echo --format=avr )
+
 
 sizebefore:
 	@if test -f $(TARGET).elf; then echo; echo $(MSG_SIZE_BEFORE); $(ELFSIZE); \
diff --git a/Demos/Device/LowLevel/VirtualSerial/makefile b/Demos/Device/LowLevel/VirtualSerial/makefile
index c0d989e87..41cb02a1f 100644
--- a/Demos/Device/LowLevel/VirtualSerial/makefile
+++ b/Demos/Device/LowLevel/VirtualSerial/makefile
@@ -490,7 +490,10 @@ end:
 
 # Display size of file.
 HEXSIZE = $(SIZE) --target=$(FORMAT) $(TARGET).hex
-ELFSIZE = $(SIZE) --mcu=$(MCU) --format=avr $(TARGET).elf
+ELFSIZE = $(SIZE) $(MCU_FLAG) $(FORMAT_FLAG) $(TARGET).elf
+MCU_FLAG = $(shell $(SIZE) --help | grep -- --mcu > /dev/null && echo --mcu=$(MCU) )
+FORMAT_FLAG = $(shell $(SIZE) --help | grep -- --format=.*avr > /dev/null && echo --format=avr )
+
 
 sizebefore:
 	@if test -f $(TARGET).elf; then echo; echo $(MSG_SIZE_BEFORE); $(ELFSIZE); \
diff --git a/Demos/DualRole/ClassDriver/MouseHostDevice/makefile b/Demos/DualRole/ClassDriver/MouseHostDevice/makefile
index 79ab4f4f1..cdaf43d7f 100644
--- a/Demos/DualRole/ClassDriver/MouseHostDevice/makefile
+++ b/Demos/DualRole/ClassDriver/MouseHostDevice/makefile
@@ -493,7 +493,10 @@ end:
 
 # Display size of file.
 HEXSIZE = $(SIZE) --target=$(FORMAT) $(TARGET).hex
-ELFSIZE = $(SIZE) --mcu=$(MCU) --format=avr $(TARGET).elf
+ELFSIZE = $(SIZE) $(MCU_FLAG) $(FORMAT_FLAG) $(TARGET).elf
+MCU_FLAG = $(shell $(SIZE) --help | grep -- --mcu > /dev/null && echo --mcu=$(MCU) )
+FORMAT_FLAG = $(shell $(SIZE) --help | grep -- --format=.*avr > /dev/null && echo --format=avr )
+
 
 sizebefore:
 	@if test -f $(TARGET).elf; then echo; echo $(MSG_SIZE_BEFORE); $(ELFSIZE); \
diff --git a/Demos/Host/ClassDriver/JoystickHostWithParser/makefile b/Demos/Host/ClassDriver/JoystickHostWithParser/makefile
index 3d408ae6a..2d353d6a6 100644
--- a/Demos/Host/ClassDriver/JoystickHostWithParser/makefile
+++ b/Demos/Host/ClassDriver/JoystickHostWithParser/makefile
@@ -488,7 +488,10 @@ end:
 
 # Display size of file.
 HEXSIZE = $(SIZE) --target=$(FORMAT) $(TARGET).hex
-ELFSIZE = $(SIZE) --mcu=$(MCU) --format=avr $(TARGET).elf
+ELFSIZE = $(SIZE) $(MCU_FLAG) $(FORMAT_FLAG) $(TARGET).elf
+MCU_FLAG = $(shell $(SIZE) --help | grep -- --mcu > /dev/null && echo --mcu=$(MCU) )
+FORMAT_FLAG = $(shell $(SIZE) --help | grep -- --format=.*avr > /dev/null && echo --format=avr )
+
 
 sizebefore:
 	@if test -f $(TARGET).elf; then echo; echo $(MSG_SIZE_BEFORE); $(ELFSIZE); \
diff --git a/Demos/Host/ClassDriver/KeyboardHost/makefile b/Demos/Host/ClassDriver/KeyboardHost/makefile
index e93721194..1931bc466 100644
--- a/Demos/Host/ClassDriver/KeyboardHost/makefile
+++ b/Demos/Host/ClassDriver/KeyboardHost/makefile
@@ -488,7 +488,10 @@ end:
 
 # Display size of file.
 HEXSIZE = $(SIZE) --target=$(FORMAT) $(TARGET).hex
-ELFSIZE = $(SIZE) --mcu=$(MCU) --format=avr $(TARGET).elf
+ELFSIZE = $(SIZE) $(MCU_FLAG) $(FORMAT_FLAG) $(TARGET).elf
+MCU_FLAG = $(shell $(SIZE) --help | grep -- --mcu > /dev/null && echo --mcu=$(MCU) )
+FORMAT_FLAG = $(shell $(SIZE) --help | grep -- --format=.*avr > /dev/null && echo --format=avr )
+
 
 sizebefore:
 	@if test -f $(TARGET).elf; then echo; echo $(MSG_SIZE_BEFORE); $(ELFSIZE); \
diff --git a/Demos/Host/ClassDriver/KeyboardHostWithParser/makefile b/Demos/Host/ClassDriver/KeyboardHostWithParser/makefile
index d5325bb3e..775d97018 100644
--- a/Demos/Host/ClassDriver/KeyboardHostWithParser/makefile
+++ b/Demos/Host/ClassDriver/KeyboardHostWithParser/makefile
@@ -488,7 +488,10 @@ end:
 
 # Display size of file.
 HEXSIZE = $(SIZE) --target=$(FORMAT) $(TARGET).hex
-ELFSIZE = $(SIZE) --mcu=$(MCU) --format=avr $(TARGET).elf
+ELFSIZE = $(SIZE) $(MCU_FLAG) $(FORMAT_FLAG) $(TARGET).elf
+MCU_FLAG = $(shell $(SIZE) --help | grep -- --mcu > /dev/null && echo --mcu=$(MCU) )
+FORMAT_FLAG = $(shell $(SIZE) --help | grep -- --format=.*avr > /dev/null && echo --format=avr )
+
 
 sizebefore:
 	@if test -f $(TARGET).elf; then echo; echo $(MSG_SIZE_BEFORE); $(ELFSIZE); \
diff --git a/Demos/Host/ClassDriver/MIDIHost/makefile b/Demos/Host/ClassDriver/MIDIHost/makefile
index c2a987e0e..451a9081b 100644
--- a/Demos/Host/ClassDriver/MIDIHost/makefile
+++ b/Demos/Host/ClassDriver/MIDIHost/makefile
@@ -488,7 +488,10 @@ end:
 
 # Display size of file.
 HEXSIZE = $(SIZE) --target=$(FORMAT) $(TARGET).hex
-ELFSIZE = $(SIZE) --mcu=$(MCU) --format=avr $(TARGET).elf
+ELFSIZE = $(SIZE) $(MCU_FLAG) $(FORMAT_FLAG) $(TARGET).elf
+MCU_FLAG = $(shell $(SIZE) --help | grep -- --mcu > /dev/null && echo --mcu=$(MCU) )
+FORMAT_FLAG = $(shell $(SIZE) --help | grep -- --format=.*avr > /dev/null && echo --format=avr )
+
 
 sizebefore:
 	@if test -f $(TARGET).elf; then echo; echo $(MSG_SIZE_BEFORE); $(ELFSIZE); \
diff --git a/Demos/Host/ClassDriver/MassStorageHost/makefile b/Demos/Host/ClassDriver/MassStorageHost/makefile
index e8ccd7bea..44115faf0 100644
--- a/Demos/Host/ClassDriver/MassStorageHost/makefile
+++ b/Demos/Host/ClassDriver/MassStorageHost/makefile
@@ -489,7 +489,10 @@ end:
 
 # Display size of file.
 HEXSIZE = $(SIZE) --target=$(FORMAT) $(TARGET).hex
-ELFSIZE = $(SIZE) --mcu=$(MCU) --format=avr $(TARGET).elf
+ELFSIZE = $(SIZE) $(MCU_FLAG) $(FORMAT_FLAG) $(TARGET).elf
+MCU_FLAG = $(shell $(SIZE) --help | grep -- --mcu > /dev/null && echo --mcu=$(MCU) )
+FORMAT_FLAG = $(shell $(SIZE) --help | grep -- --format=.*avr > /dev/null && echo --format=avr )
+
 
 sizebefore:
 	@if test -f $(TARGET).elf; then echo; echo $(MSG_SIZE_BEFORE); $(ELFSIZE); \
diff --git a/Demos/Host/ClassDriver/MouseHost/makefile b/Demos/Host/ClassDriver/MouseHost/makefile
index f12dd8874..c5d29edcc 100644
--- a/Demos/Host/ClassDriver/MouseHost/makefile
+++ b/Demos/Host/ClassDriver/MouseHost/makefile
@@ -488,7 +488,10 @@ end:
 
 # Display size of file.
 HEXSIZE = $(SIZE) --target=$(FORMAT) $(TARGET).hex
-ELFSIZE = $(SIZE) --mcu=$(MCU) --format=avr $(TARGET).elf
+ELFSIZE = $(SIZE) $(MCU_FLAG) $(FORMAT_FLAG) $(TARGET).elf
+MCU_FLAG = $(shell $(SIZE) --help | grep -- --mcu > /dev/null && echo --mcu=$(MCU) )
+FORMAT_FLAG = $(shell $(SIZE) --help | grep -- --format=.*avr > /dev/null && echo --format=avr )
+
 
 sizebefore:
 	@if test -f $(TARGET).elf; then echo; echo $(MSG_SIZE_BEFORE); $(ELFSIZE); \
diff --git a/Demos/Host/ClassDriver/MouseHostWithParser/makefile b/Demos/Host/ClassDriver/MouseHostWithParser/makefile
index ecbdc2f6f..aa4bf7a4f 100644
--- a/Demos/Host/ClassDriver/MouseHostWithParser/makefile
+++ b/Demos/Host/ClassDriver/MouseHostWithParser/makefile
@@ -488,7 +488,10 @@ end:
 
 # Display size of file.
 HEXSIZE = $(SIZE) --target=$(FORMAT) $(TARGET).hex
-ELFSIZE = $(SIZE) --mcu=$(MCU) --format=avr $(TARGET).elf
+ELFSIZE = $(SIZE) $(MCU_FLAG) $(FORMAT_FLAG) $(TARGET).elf
+MCU_FLAG = $(shell $(SIZE) --help | grep -- --mcu > /dev/null && echo --mcu=$(MCU) )
+FORMAT_FLAG = $(shell $(SIZE) --help | grep -- --format=.*avr > /dev/null && echo --format=avr )
+
 
 sizebefore:
 	@if test -f $(TARGET).elf; then echo; echo $(MSG_SIZE_BEFORE); $(ELFSIZE); \
diff --git a/Demos/Host/ClassDriver/PrinterHost/makefile b/Demos/Host/ClassDriver/PrinterHost/makefile
index 3434ad5d9..60ecddd66 100644
--- a/Demos/Host/ClassDriver/PrinterHost/makefile
+++ b/Demos/Host/ClassDriver/PrinterHost/makefile
@@ -488,7 +488,10 @@ end:
 
 # Display size of file.
 HEXSIZE = $(SIZE) --target=$(FORMAT) $(TARGET).hex
-ELFSIZE = $(SIZE) --mcu=$(MCU) --format=avr $(TARGET).elf
+ELFSIZE = $(SIZE) $(MCU_FLAG) $(FORMAT_FLAG) $(TARGET).elf
+MCU_FLAG = $(shell $(SIZE) --help | grep -- --mcu > /dev/null && echo --mcu=$(MCU) )
+FORMAT_FLAG = $(shell $(SIZE) --help | grep -- --format=.*avr > /dev/null && echo --format=avr )
+
 
 sizebefore:
 	@if test -f $(TARGET).elf; then echo; echo $(MSG_SIZE_BEFORE); $(ELFSIZE); \
diff --git a/Demos/Host/ClassDriver/RNDISEthernetHost/makefile b/Demos/Host/ClassDriver/RNDISEthernetHost/makefile
index 3f1b082f1..05d56d67b 100644
--- a/Demos/Host/ClassDriver/RNDISEthernetHost/makefile
+++ b/Demos/Host/ClassDriver/RNDISEthernetHost/makefile
@@ -488,7 +488,10 @@ end:
 
 # Display size of file.
 HEXSIZE = $(SIZE) --target=$(FORMAT) $(TARGET).hex
-ELFSIZE = $(SIZE) --mcu=$(MCU) --format=avr $(TARGET).elf
+ELFSIZE = $(SIZE) $(MCU_FLAG) $(FORMAT_FLAG) $(TARGET).elf
+MCU_FLAG = $(shell $(SIZE) --help | grep -- --mcu > /dev/null && echo --mcu=$(MCU) )
+FORMAT_FLAG = $(shell $(SIZE) --help | grep -- --format=.*avr > /dev/null && echo --format=avr )
+
 
 sizebefore:
 	@if test -f $(TARGET).elf; then echo; echo $(MSG_SIZE_BEFORE); $(ELFSIZE); \
diff --git a/Demos/Host/ClassDriver/StillImageHost/makefile b/Demos/Host/ClassDriver/StillImageHost/makefile
index f34358f12..4efef10d1 100644
--- a/Demos/Host/ClassDriver/StillImageHost/makefile
+++ b/Demos/Host/ClassDriver/StillImageHost/makefile
@@ -488,7 +488,10 @@ end:
 
 # Display size of file.
 HEXSIZE = $(SIZE) --target=$(FORMAT) $(TARGET).hex
-ELFSIZE = $(SIZE) --mcu=$(MCU) --format=avr $(TARGET).elf
+ELFSIZE = $(SIZE) $(MCU_FLAG) $(FORMAT_FLAG) $(TARGET).elf
+MCU_FLAG = $(shell $(SIZE) --help | grep -- --mcu > /dev/null && echo --mcu=$(MCU) )
+FORMAT_FLAG = $(shell $(SIZE) --help | grep -- --format=.*avr > /dev/null && echo --format=avr )
+
 
 sizebefore:
 	@if test -f $(TARGET).elf; then echo; echo $(MSG_SIZE_BEFORE); $(ELFSIZE); \
diff --git a/Demos/Host/ClassDriver/VirtualSerialHost/makefile b/Demos/Host/ClassDriver/VirtualSerialHost/makefile
index 6399d2da0..d16e8320e 100644
--- a/Demos/Host/ClassDriver/VirtualSerialHost/makefile
+++ b/Demos/Host/ClassDriver/VirtualSerialHost/makefile
@@ -488,7 +488,10 @@ end:
 
 # Display size of file.
 HEXSIZE = $(SIZE) --target=$(FORMAT) $(TARGET).hex
-ELFSIZE = $(SIZE) --mcu=$(MCU) --format=avr $(TARGET).elf
+ELFSIZE = $(SIZE) $(MCU_FLAG) $(FORMAT_FLAG) $(TARGET).elf
+MCU_FLAG = $(shell $(SIZE) --help | grep -- --mcu > /dev/null && echo --mcu=$(MCU) )
+FORMAT_FLAG = $(shell $(SIZE) --help | grep -- --format=.*avr > /dev/null && echo --format=avr )
+
 
 sizebefore:
 	@if test -f $(TARGET).elf; then echo; echo $(MSG_SIZE_BEFORE); $(ELFSIZE); \
diff --git a/Demos/Host/Incomplete/BluetoothHost/makefile b/Demos/Host/Incomplete/BluetoothHost/makefile
index 50de5a149..ae632ff59 100644
--- a/Demos/Host/Incomplete/BluetoothHost/makefile
+++ b/Demos/Host/Incomplete/BluetoothHost/makefile
@@ -498,7 +498,10 @@ end:
 
 # Display size of file.
 HEXSIZE = $(SIZE) --target=$(FORMAT) $(TARGET).hex
-ELFSIZE = $(SIZE) --mcu=$(MCU) --format=avr $(TARGET).elf
+ELFSIZE = $(SIZE) $(MCU_FLAG) $(FORMAT_FLAG) $(TARGET).elf
+MCU_FLAG = $(shell $(SIZE) --help | grep -- --mcu > /dev/null && echo --mcu=$(MCU) )
+FORMAT_FLAG = $(shell $(SIZE) --help | grep -- --format=.*avr > /dev/null && echo --format=avr )
+
 
 sizebefore:
 	@if test -f $(TARGET).elf; then echo; echo $(MSG_SIZE_BEFORE); $(ELFSIZE); \
diff --git a/Demos/Host/LowLevel/GenericHIDHost/makefile b/Demos/Host/LowLevel/GenericHIDHost/makefile
index d8fcddf77..e9dbab5a2 100644
--- a/Demos/Host/LowLevel/GenericHIDHost/makefile
+++ b/Demos/Host/LowLevel/GenericHIDHost/makefile
@@ -489,7 +489,10 @@ end:
 
 # Display size of file.
 HEXSIZE = $(SIZE) --target=$(FORMAT) $(TARGET).hex
-ELFSIZE = $(SIZE) --mcu=$(MCU) --format=avr $(TARGET).elf
+ELFSIZE = $(SIZE) $(MCU_FLAG) $(FORMAT_FLAG) $(TARGET).elf
+MCU_FLAG = $(shell $(SIZE) --help | grep -- --mcu > /dev/null && echo --mcu=$(MCU) )
+FORMAT_FLAG = $(shell $(SIZE) --help | grep -- --format=.*avr > /dev/null && echo --format=avr )
+
 
 sizebefore:
 	@if test -f $(TARGET).elf; then echo; echo $(MSG_SIZE_BEFORE); $(ELFSIZE); \
diff --git a/Demos/Host/LowLevel/JoystickHostWithParser/makefile b/Demos/Host/LowLevel/JoystickHostWithParser/makefile
index b9a82370e..a56fdf280 100644
--- a/Demos/Host/LowLevel/JoystickHostWithParser/makefile
+++ b/Demos/Host/LowLevel/JoystickHostWithParser/makefile
@@ -490,7 +490,10 @@ end:
 
 # Display size of file.
 HEXSIZE = $(SIZE) --target=$(FORMAT) $(TARGET).hex
-ELFSIZE = $(SIZE) --mcu=$(MCU) --format=avr $(TARGET).elf
+ELFSIZE = $(SIZE) $(MCU_FLAG) $(FORMAT_FLAG) $(TARGET).elf
+MCU_FLAG = $(shell $(SIZE) --help | grep -- --mcu > /dev/null && echo --mcu=$(MCU) )
+FORMAT_FLAG = $(shell $(SIZE) --help | grep -- --format=.*avr > /dev/null && echo --format=avr )
+
 
 sizebefore:
 	@if test -f $(TARGET).elf; then echo; echo $(MSG_SIZE_BEFORE); $(ELFSIZE); \
diff --git a/Demos/Host/LowLevel/KeyboardHost/makefile b/Demos/Host/LowLevel/KeyboardHost/makefile
index 877f0e2ea..02b19f914 100644
--- a/Demos/Host/LowLevel/KeyboardHost/makefile
+++ b/Demos/Host/LowLevel/KeyboardHost/makefile
@@ -489,7 +489,10 @@ end:
 
 # Display size of file.
 HEXSIZE = $(SIZE) --target=$(FORMAT) $(TARGET).hex
-ELFSIZE = $(SIZE) --mcu=$(MCU) --format=avr $(TARGET).elf
+ELFSIZE = $(SIZE) $(MCU_FLAG) $(FORMAT_FLAG) $(TARGET).elf
+MCU_FLAG = $(shell $(SIZE) --help | grep -- --mcu > /dev/null && echo --mcu=$(MCU) )
+FORMAT_FLAG = $(shell $(SIZE) --help | grep -- --format=.*avr > /dev/null && echo --format=avr )
+
 
 sizebefore:
 	@if test -f $(TARGET).elf; then echo; echo $(MSG_SIZE_BEFORE); $(ELFSIZE); \
diff --git a/Demos/Host/LowLevel/KeyboardHostWithParser/makefile b/Demos/Host/LowLevel/KeyboardHostWithParser/makefile
index a100eeafe..ded32f8e0 100644
--- a/Demos/Host/LowLevel/KeyboardHostWithParser/makefile
+++ b/Demos/Host/LowLevel/KeyboardHostWithParser/makefile
@@ -490,7 +490,10 @@ end:
 
 # Display size of file.
 HEXSIZE = $(SIZE) --target=$(FORMAT) $(TARGET).hex
-ELFSIZE = $(SIZE) --mcu=$(MCU) --format=avr $(TARGET).elf
+ELFSIZE = $(SIZE) $(MCU_FLAG) $(FORMAT_FLAG) $(TARGET).elf
+MCU_FLAG = $(shell $(SIZE) --help | grep -- --mcu > /dev/null && echo --mcu=$(MCU) )
+FORMAT_FLAG = $(shell $(SIZE) --help | grep -- --format=.*avr > /dev/null && echo --format=avr )
+
 
 sizebefore:
 	@if test -f $(TARGET).elf; then echo; echo $(MSG_SIZE_BEFORE); $(ELFSIZE); \
diff --git a/Demos/Host/LowLevel/MIDIHost/makefile b/Demos/Host/LowLevel/MIDIHost/makefile
index 27b899fd3..ca8f99332 100644
--- a/Demos/Host/LowLevel/MIDIHost/makefile
+++ b/Demos/Host/LowLevel/MIDIHost/makefile
@@ -489,7 +489,10 @@ end:
 
 # Display size of file.
 HEXSIZE = $(SIZE) --target=$(FORMAT) $(TARGET).hex
-ELFSIZE = $(SIZE) --mcu=$(MCU) --format=avr $(TARGET).elf
+ELFSIZE = $(SIZE) $(MCU_FLAG) $(FORMAT_FLAG) $(TARGET).elf
+MCU_FLAG = $(shell $(SIZE) --help | grep -- --mcu > /dev/null && echo --mcu=$(MCU) )
+FORMAT_FLAG = $(shell $(SIZE) --help | grep -- --format=.*avr > /dev/null && echo --format=avr )
+
 
 sizebefore:
 	@if test -f $(TARGET).elf; then echo; echo $(MSG_SIZE_BEFORE); $(ELFSIZE); \
diff --git a/Demos/Host/LowLevel/MassStorageHost/makefile b/Demos/Host/LowLevel/MassStorageHost/makefile
index 3728b760e..a17934d1e 100644
--- a/Demos/Host/LowLevel/MassStorageHost/makefile
+++ b/Demos/Host/LowLevel/MassStorageHost/makefile
@@ -491,7 +491,10 @@ end:
 
 # Display size of file.
 HEXSIZE = $(SIZE) --target=$(FORMAT) $(TARGET).hex
-ELFSIZE = $(SIZE) --mcu=$(MCU) --format=avr $(TARGET).elf
+ELFSIZE = $(SIZE) $(MCU_FLAG) $(FORMAT_FLAG) $(TARGET).elf
+MCU_FLAG = $(shell $(SIZE) --help | grep -- --mcu > /dev/null && echo --mcu=$(MCU) )
+FORMAT_FLAG = $(shell $(SIZE) --help | grep -- --format=.*avr > /dev/null && echo --format=avr )
+
 
 sizebefore:
 	@if test -f $(TARGET).elf; then echo; echo $(MSG_SIZE_BEFORE); $(ELFSIZE); \
diff --git a/Demos/Host/LowLevel/MouseHost/makefile b/Demos/Host/LowLevel/MouseHost/makefile
index 5aeaf8721..a6a218302 100644
--- a/Demos/Host/LowLevel/MouseHost/makefile
+++ b/Demos/Host/LowLevel/MouseHost/makefile
@@ -489,7 +489,10 @@ end:
 
 # Display size of file.
 HEXSIZE = $(SIZE) --target=$(FORMAT) $(TARGET).hex
-ELFSIZE = $(SIZE) --mcu=$(MCU) --format=avr $(TARGET).elf
+ELFSIZE = $(SIZE) $(MCU_FLAG) $(FORMAT_FLAG) $(TARGET).elf
+MCU_FLAG = $(shell $(SIZE) --help | grep -- --mcu > /dev/null && echo --mcu=$(MCU) )
+FORMAT_FLAG = $(shell $(SIZE) --help | grep -- --format=.*avr > /dev/null && echo --format=avr )
+
 
 sizebefore:
 	@if test -f $(TARGET).elf; then echo; echo $(MSG_SIZE_BEFORE); $(ELFSIZE); \
diff --git a/Demos/Host/LowLevel/MouseHostWithParser/makefile b/Demos/Host/LowLevel/MouseHostWithParser/makefile
index 84a5f728c..0c882582c 100644
--- a/Demos/Host/LowLevel/MouseHostWithParser/makefile
+++ b/Demos/Host/LowLevel/MouseHostWithParser/makefile
@@ -490,7 +490,10 @@ end:
 
 # Display size of file.
 HEXSIZE = $(SIZE) --target=$(FORMAT) $(TARGET).hex
-ELFSIZE = $(SIZE) --mcu=$(MCU) --format=avr $(TARGET).elf
+ELFSIZE = $(SIZE) $(MCU_FLAG) $(FORMAT_FLAG) $(TARGET).elf
+MCU_FLAG = $(shell $(SIZE) --help | grep -- --mcu > /dev/null && echo --mcu=$(MCU) )
+FORMAT_FLAG = $(shell $(SIZE) --help | grep -- --format=.*avr > /dev/null && echo --format=avr )
+
 
 sizebefore:
 	@if test -f $(TARGET).elf; then echo; echo $(MSG_SIZE_BEFORE); $(ELFSIZE); \
diff --git a/Demos/Host/LowLevel/PrinterHost/makefile b/Demos/Host/LowLevel/PrinterHost/makefile
index 66efd03e2..f8698cf0d 100644
--- a/Demos/Host/LowLevel/PrinterHost/makefile
+++ b/Demos/Host/LowLevel/PrinterHost/makefile
@@ -490,7 +490,10 @@ end:
 
 # Display size of file.
 HEXSIZE = $(SIZE) --target=$(FORMAT) $(TARGET).hex
-ELFSIZE = $(SIZE) --mcu=$(MCU) --format=avr $(TARGET).elf
+ELFSIZE = $(SIZE) $(MCU_FLAG) $(FORMAT_FLAG) $(TARGET).elf
+MCU_FLAG = $(shell $(SIZE) --help | grep -- --mcu > /dev/null && echo --mcu=$(MCU) )
+FORMAT_FLAG = $(shell $(SIZE) --help | grep -- --format=.*avr > /dev/null && echo --format=avr )
+
 
 sizebefore:
 	@if test -f $(TARGET).elf; then echo; echo $(MSG_SIZE_BEFORE); $(ELFSIZE); \
diff --git a/Demos/Host/LowLevel/RNDISEthernetHost/makefile b/Demos/Host/LowLevel/RNDISEthernetHost/makefile
index 06aed481f..98faa8238 100644
--- a/Demos/Host/LowLevel/RNDISEthernetHost/makefile
+++ b/Demos/Host/LowLevel/RNDISEthernetHost/makefile
@@ -490,7 +490,10 @@ end:
 
 # Display size of file.
 HEXSIZE = $(SIZE) --target=$(FORMAT) $(TARGET).hex
-ELFSIZE = $(SIZE) --mcu=$(MCU) --format=avr $(TARGET).elf
+ELFSIZE = $(SIZE) $(MCU_FLAG) $(FORMAT_FLAG) $(TARGET).elf
+MCU_FLAG = $(shell $(SIZE) --help | grep -- --mcu > /dev/null && echo --mcu=$(MCU) )
+FORMAT_FLAG = $(shell $(SIZE) --help | grep -- --format=.*avr > /dev/null && echo --format=avr )
+
 
 sizebefore:
 	@if test -f $(TARGET).elf; then echo; echo $(MSG_SIZE_BEFORE); $(ELFSIZE); \
diff --git a/Demos/Host/LowLevel/StillImageHost/makefile b/Demos/Host/LowLevel/StillImageHost/makefile
index de242d8e6..4434d7608 100644
--- a/Demos/Host/LowLevel/StillImageHost/makefile
+++ b/Demos/Host/LowLevel/StillImageHost/makefile
@@ -490,7 +490,10 @@ end:
 
 # Display size of file.
 HEXSIZE = $(SIZE) --target=$(FORMAT) $(TARGET).hex
-ELFSIZE = $(SIZE) --mcu=$(MCU) --format=avr $(TARGET).elf
+ELFSIZE = $(SIZE) $(MCU_FLAG) $(FORMAT_FLAG) $(TARGET).elf
+MCU_FLAG = $(shell $(SIZE) --help | grep -- --mcu > /dev/null && echo --mcu=$(MCU) )
+FORMAT_FLAG = $(shell $(SIZE) --help | grep -- --format=.*avr > /dev/null && echo --format=avr )
+
 
 sizebefore:
 	@if test -f $(TARGET).elf; then echo; echo $(MSG_SIZE_BEFORE); $(ELFSIZE); \
diff --git a/Demos/Host/LowLevel/VirtualSerialHost/makefile b/Demos/Host/LowLevel/VirtualSerialHost/makefile
index 6e15fafa7..d38420115 100644
--- a/Demos/Host/LowLevel/VirtualSerialHost/makefile
+++ b/Demos/Host/LowLevel/VirtualSerialHost/makefile
@@ -489,7 +489,10 @@ end:
 
 # Display size of file.
 HEXSIZE = $(SIZE) --target=$(FORMAT) $(TARGET).hex
-ELFSIZE = $(SIZE) --mcu=$(MCU) --format=avr $(TARGET).elf
+ELFSIZE = $(SIZE) $(MCU_FLAG) $(FORMAT_FLAG) $(TARGET).elf
+MCU_FLAG = $(shell $(SIZE) --help | grep -- --mcu > /dev/null && echo --mcu=$(MCU) )
+FORMAT_FLAG = $(shell $(SIZE) --help | grep -- --format=.*avr > /dev/null && echo --format=avr )
+
 
 sizebefore:
 	@if test -f $(TARGET).elf; then echo; echo $(MSG_SIZE_BEFORE); $(ELFSIZE); \
diff --git a/Projects/AVRISP-MKII/makefile b/Projects/AVRISP-MKII/makefile
index 8b120da33..ca203fe29 100644
--- a/Projects/AVRISP-MKII/makefile
+++ b/Projects/AVRISP-MKII/makefile
@@ -513,7 +513,10 @@ end:
 
 # Display size of file.
 HEXSIZE = $(SIZE) --target=$(FORMAT) $(TARGET).hex
-ELFSIZE = $(SIZE) --mcu=$(MCU) --format=avr $(TARGET).elf
+ELFSIZE = $(SIZE) $(MCU_FLAG) $(FORMAT_FLAG) $(TARGET).elf
+MCU_FLAG = $(shell $(SIZE) --help | grep -- --mcu > /dev/null && echo --mcu=$(MCU) )
+FORMAT_FLAG = $(shell $(SIZE) --help | grep -- --format=.*avr > /dev/null && echo --format=avr )
+
 
 sizebefore:
 	@if test -f $(TARGET).elf; then echo; echo $(MSG_SIZE_BEFORE); $(ELFSIZE); \
diff --git a/Projects/Benito/makefile b/Projects/Benito/makefile
index 3e0311e89..d8babd86b 100644
--- a/Projects/Benito/makefile
+++ b/Projects/Benito/makefile
@@ -498,7 +498,10 @@ end:
 
 # Display size of file.
 HEXSIZE = $(SIZE) --target=$(FORMAT) $(TARGET).hex
-ELFSIZE = $(SIZE) --mcu=$(MCU) --format=avr $(TARGET).elf
+ELFSIZE = $(SIZE) $(MCU_FLAG) $(FORMAT_FLAG) $(TARGET).elf
+MCU_FLAG = $(shell $(SIZE) --help | grep -- --mcu > /dev/null && echo --mcu=$(MCU) )
+FORMAT_FLAG = $(shell $(SIZE) --help | grep -- --format=.*avr > /dev/null && echo --format=avr )
+
 
 sizebefore:
 	@if test -f $(TARGET).elf; then echo; echo $(MSG_SIZE_BEFORE); $(ELFSIZE); \
diff --git a/Projects/Incomplete/MIDIToneGenerator/makefile b/Projects/Incomplete/MIDIToneGenerator/makefile
index 3360a4e8b..5c73b279b 100644
--- a/Projects/Incomplete/MIDIToneGenerator/makefile
+++ b/Projects/Incomplete/MIDIToneGenerator/makefile
@@ -493,7 +493,10 @@ end:
 
 # Display size of file.
 HEXSIZE = $(SIZE) --target=$(FORMAT) $(TARGET).hex
-ELFSIZE = $(SIZE) --mcu=$(MCU) --format=avr $(TARGET).elf
+ELFSIZE = $(SIZE) $(MCU_FLAG) $(FORMAT_FLAG) $(TARGET).elf
+MCU_FLAG = $(shell $(SIZE) --help | grep -- --mcu > /dev/null && echo --mcu=$(MCU) )
+FORMAT_FLAG = $(shell $(SIZE) --help | grep -- --format=.*avr > /dev/null && echo --format=avr )
+
 
 sizebefore:
 	@if test -f $(TARGET).elf; then echo; echo $(MSG_SIZE_BEFORE); $(ELFSIZE); \
diff --git a/Projects/Incomplete/StandaloneProgrammer/makefile b/Projects/Incomplete/StandaloneProgrammer/makefile
index 6bf5f056c..b0409d456 100644
--- a/Projects/Incomplete/StandaloneProgrammer/makefile
+++ b/Projects/Incomplete/StandaloneProgrammer/makefile
@@ -499,7 +499,10 @@ end:
 
 # Display size of file.
 HEXSIZE = $(SIZE) --target=$(FORMAT) $(TARGET).hex
-ELFSIZE = $(SIZE) --mcu=$(MCU) --format=avr $(TARGET).elf
+ELFSIZE = $(SIZE) $(MCU_FLAG) $(FORMAT_FLAG) $(TARGET).elf
+MCU_FLAG = $(shell $(SIZE) --help | grep -- --mcu > /dev/null && echo --mcu=$(MCU) )
+FORMAT_FLAG = $(shell $(SIZE) --help | grep -- --format=.*avr > /dev/null && echo --format=avr )
+
 
 sizebefore:
 	@if test -f $(TARGET).elf; then echo; echo $(MSG_SIZE_BEFORE); $(ELFSIZE); \
diff --git a/Projects/LEDNotifier/makefile b/Projects/LEDNotifier/makefile
index 0ac1d866a..5075f2371 100644
--- a/Projects/LEDNotifier/makefile
+++ b/Projects/LEDNotifier/makefile
@@ -490,7 +490,10 @@ end:
 
 # Display size of file.
 HEXSIZE = $(SIZE) --target=$(FORMAT) $(TARGET).hex
-ELFSIZE = $(SIZE) --mcu=$(MCU) --format=avr $(TARGET).elf
+ELFSIZE = $(SIZE) $(MCU_FLAG) $(FORMAT_FLAG) $(TARGET).elf
+MCU_FLAG = $(shell $(SIZE) --help | grep -- --mcu > /dev/null && echo --mcu=$(MCU) )
+FORMAT_FLAG = $(shell $(SIZE) --help | grep -- --format=.*avr > /dev/null && echo --format=avr )
+
 
 sizebefore:
 	@if test -f $(TARGET).elf; then echo; echo $(MSG_SIZE_BEFORE); $(ELFSIZE); \
diff --git a/Projects/Magstripe/makefile b/Projects/Magstripe/makefile
index 60fa362a2..f97be4d77 100644
--- a/Projects/Magstripe/makefile
+++ b/Projects/Magstripe/makefile
@@ -502,7 +502,10 @@ end:
 
 # Display size of file.
 HEXSIZE = $(SIZE) --target=$(FORMAT) $(TARGET).hex
-ELFSIZE = $(SIZE) --mcu=$(MCU) --format=avr $(TARGET).elf
+ELFSIZE = $(SIZE) $(MCU_FLAG) $(FORMAT_FLAG) $(TARGET).elf
+MCU_FLAG = $(shell $(SIZE) --help | grep -- --mcu > /dev/null && echo --mcu=$(MCU) )
+FORMAT_FLAG = $(shell $(SIZE) --help | grep -- --format=.*avr > /dev/null && echo --format=avr )
+
 
 sizebefore:
 	@if test -f $(TARGET).elf; then echo; echo $(MSG_SIZE_BEFORE); $(ELFSIZE); \
diff --git a/Projects/MissileLauncher/makefile b/Projects/MissileLauncher/makefile
index 1a7ab81e4..5f59b4513 100644
--- a/Projects/MissileLauncher/makefile
+++ b/Projects/MissileLauncher/makefile
@@ -487,7 +487,10 @@ end:
 
 # Display size of file.
 HEXSIZE = $(SIZE) --target=$(FORMAT) $(TARGET).hex
-ELFSIZE = $(SIZE) --mcu=$(MCU) --format=avr $(TARGET).elf
+ELFSIZE = $(SIZE) $(MCU_FLAG) $(FORMAT_FLAG) $(TARGET).elf
+MCU_FLAG = $(shell $(SIZE) --help | grep -- --mcu > /dev/null && echo --mcu=$(MCU) )
+FORMAT_FLAG = $(shell $(SIZE) --help | grep -- --format=.*avr > /dev/null && echo --format=avr )
+
 
 sizebefore:
 	@if test -f $(TARGET).elf; then echo; echo $(MSG_SIZE_BEFORE); $(ELFSIZE); \
diff --git a/Projects/RelayBoard/makefile b/Projects/RelayBoard/makefile
index 6f3d08efd..f4f451765 100644
--- a/Projects/RelayBoard/makefile
+++ b/Projects/RelayBoard/makefile
@@ -490,7 +490,10 @@ end:
 
 # Display size of file.
 HEXSIZE = $(SIZE) --target=$(FORMAT) $(TARGET).hex
-ELFSIZE = $(SIZE) --mcu=$(MCU) --format=avr $(TARGET).elf
+ELFSIZE = $(SIZE) $(MCU_FLAG) $(FORMAT_FLAG) $(TARGET).elf
+MCU_FLAG = $(shell $(SIZE) --help | grep -- --mcu > /dev/null && echo --mcu=$(MCU) )
+FORMAT_FLAG = $(shell $(SIZE) --help | grep -- --format=.*avr > /dev/null && echo --format=avr )
+
 
 sizebefore:
 	@if test -f $(TARGET).elf; then echo; echo $(MSG_SIZE_BEFORE); $(ELFSIZE); \
diff --git a/Projects/TempDataLogger/makefile b/Projects/TempDataLogger/makefile
index 06f095463..6644cba59 100644
--- a/Projects/TempDataLogger/makefile
+++ b/Projects/TempDataLogger/makefile
@@ -501,7 +501,10 @@ end:
 
 # Display size of file.
 HEXSIZE = $(SIZE) --target=$(FORMAT) $(TARGET).hex
-ELFSIZE = $(SIZE) --mcu=$(MCU) --format=avr $(TARGET).elf
+ELFSIZE = $(SIZE) $(MCU_FLAG) $(FORMAT_FLAG) $(TARGET).elf
+MCU_FLAG = $(shell $(SIZE) --help | grep -- --mcu > /dev/null && echo --mcu=$(MCU) )
+FORMAT_FLAG = $(shell $(SIZE) --help | grep -- --format=.*avr > /dev/null && echo --format=avr )
+
 
 sizebefore:
 	@if test -f $(TARGET).elf; then echo; echo $(MSG_SIZE_BEFORE); $(ELFSIZE); \
diff --git a/Projects/USBtoSerial/makefile b/Projects/USBtoSerial/makefile
index dfa2c99dd..a87f30320 100644
--- a/Projects/USBtoSerial/makefile
+++ b/Projects/USBtoSerial/makefile
@@ -490,7 +490,10 @@ end:
 
 # Display size of file.
 HEXSIZE = $(SIZE) --target=$(FORMAT) $(TARGET).hex
-ELFSIZE = $(SIZE) --mcu=$(MCU) --format=avr $(TARGET).elf
+ELFSIZE = $(SIZE) $(MCU_FLAG) $(FORMAT_FLAG) $(TARGET).elf
+MCU_FLAG = $(shell $(SIZE) --help | grep -- --mcu > /dev/null && echo --mcu=$(MCU) )
+FORMAT_FLAG = $(shell $(SIZE) --help | grep -- --format=.*avr > /dev/null && echo --format=avr )
+
 
 sizebefore:
 	@if test -f $(TARGET).elf; then echo; echo $(MSG_SIZE_BEFORE); $(ELFSIZE); \
diff --git a/Projects/Webserver/makefile b/Projects/Webserver/makefile
index 877b9261f..ed4e532aa 100644
--- a/Projects/Webserver/makefile
+++ b/Projects/Webserver/makefile
@@ -525,7 +525,10 @@ end:
 
 # Display size of file.
 HEXSIZE = $(SIZE) --target=$(FORMAT) $(TARGET).hex
-ELFSIZE = $(SIZE) --mcu=$(MCU) --format=avr $(TARGET).elf
+ELFSIZE = $(SIZE) $(MCU_FLAG) $(FORMAT_FLAG) $(TARGET).elf
+MCU_FLAG = $(shell $(SIZE) --help | grep -- --mcu > /dev/null && echo --mcu=$(MCU) )
+FORMAT_FLAG = $(shell $(SIZE) --help | grep -- --format=.*avr > /dev/null && echo --format=avr )
+
 
 sizebefore:
 	@if test -f $(TARGET).elf; then echo; echo $(MSG_SIZE_BEFORE); $(ELFSIZE); \
diff --git a/Projects/XPLAINBridge/makefile b/Projects/XPLAINBridge/makefile
index 03502db58..810f9e769 100644
--- a/Projects/XPLAINBridge/makefile
+++ b/Projects/XPLAINBridge/makefile
@@ -516,7 +516,10 @@ end:
 
 # Display size of file.
 HEXSIZE = $(SIZE) --target=$(FORMAT) $(TARGET).hex
-ELFSIZE = $(SIZE) --mcu=$(MCU) --format=avr $(TARGET).elf
+ELFSIZE = $(SIZE) $(MCU_FLAG) $(FORMAT_FLAG) $(TARGET).elf
+MCU_FLAG = $(shell $(SIZE) --help | grep -- --mcu > /dev/null && echo --mcu=$(MCU) )
+FORMAT_FLAG = $(shell $(SIZE) --help | grep -- --format=.*avr > /dev/null && echo --format=avr )
+
 
 sizebefore:
 	@if test -f $(TARGET).elf; then echo; echo $(MSG_SIZE_BEFORE); $(ELFSIZE); \