more work on Makefile - actually rebuilds if Makefile or Configuration.h are altered, also much cleaner output

Marlin/Makefile

@@ -32,19 +32,24 @@
 #
 # $Id$
 
-TARGET = $(notdir $(CURDIR))
-INSTALL_DIR = ../../arduino-0022/
-UPLOAD_RATE = 115200
-AVRDUDE_PROGRAMMER = arduino
-# PORT = /dev/arduino_A900G2I3
-PORT = /dev/arduino
-MCU = atmega1280
 #For "old" Arduino Mega
-#MCU = atmega1280
+MCU = atmega1280
+#For Arduino Mega2560
+#MCU = atmega2560
 #For Sanguinololu
 #MCU = atmega644p 
+
+#Arduino install directory
+INSTALL_DIR = ../../arduino-0022/
+
 F_CPU = 16000000
 
+UPLOAD_RATE = 115200
+AVRDUDE_PROGRAMMER = arduino
+PORT = /dev/arduino
+
+TARGET = $(notdir $(CURDIR))
+
 
 ############################################################################
 # Below here nothing should be changed...
@@ -128,11 +133,11 @@ ALL_ASFLAGS = -mmcu=$(MCU) -I. -x assembler-with-cpp $(ASFLAGS)
 
 
 # Default target.
-all: applet_files build sizeafter
+all: build sizeafter
 
 build: elf hex 
 
-applet_files: $(TARGET).pde
+applet/$(TARGET).cpp: $(TARGET).pde $(MAKEFILE)
 # Here is the "preprocessing".
 # It creates a .cpp file based with the same name as the .pde file.
 # On top of the new .cpp file comes the WProgram.h header.
@@ -140,10 +145,11 @@ applet_files: $(TARGET).pde
 # Then the .cpp file will be compiled. Errors during compile will
 # refer to this new, automatically generated, file. 
 # Not the original .pde file you actually edit...
-	test -d applet || mkdir applet
-	echo '#include "WProgram.h"' > applet/$(TARGET).cpp
-	cat $(TARGET).pde >> applet/$(TARGET).cpp
-	cat $(ARDUINO)/main.cpp >> applet/$(TARGET).cpp
+	@echo "  WR    applet/$(TARGET).cpp"
+	@test -d applet || mkdir applet
+	@echo '#include "WProgram.h"' > applet/$(TARGET).cpp
+	@cat $(TARGET).pde >> applet/$(TARGET).cpp
+	@cat $(ARDUINO)/main.cpp >> applet/$(TARGET).cpp
 
 elf: applet/$(TARGET).elf
 hex: applet/$(TARGET).hex
@@ -165,7 +171,7 @@ sizebefore:
 	@if [ -f applet/$(TARGET).elf ]; then echo; echo $(MSG_SIZE_BEFORE); $(HEXSIZE); echo; fi
 
 sizeafter:
-	@if [ -f applet/$(TARGET).elf ]; then echo; echo $(MSG_SIZE_AFTER); $(HEXSIZE); echo; fi
+	@if [ -f applet/$(TARGET).elf ]; then echo; echo $(MSG_SIZE_AFTER); $(ELFSIZE); echo; fi
 
 
 # Convert ELF to COFF for use in debugging / simulating in AVR Studio or VMLAB.
@@ -185,9 +191,11 @@ extcoff: $(TARGET).elf
 
 
 .SUFFIXES: .elf .hex .eep .lss .sym
+.PRECIOUS: .o
 
 .elf.hex:
-	$(OBJCOPY) -O $(FORMAT) -R .eeprom $< $@
+	@echo "  COPY  $@"
+	@$(OBJCOPY) -O $(FORMAT) -R .eeprom $< $@
 
 .elf.eep:
 	-$(OBJCOPY) -j .eeprom --set-section-flags=.eeprom="alloc,load" \
@@ -202,39 +210,29 @@ extcoff: $(TARGET).elf
 	$(NM) -n $< > $@
 
 	# Link: create ELF output file from library.
-applet/$(TARGET).elf: $(TARGET).pde applet/core.a 
-	$(CC) $(ALL_CFLAGS) -Wl,--gc-sections -o $@ applet/$(TARGET).cpp -L. applet/core.a $(LDFLAGS)
-
-applet/core.a: $(OBJ)
-	@for i in $(OBJ); do echo $(AR) rcs applet/core.a $$i; $(AR) rcs applet/core.a $$i; done
-
-
-
-# Compile: create object files from C++ source files.
-.cpp.o:
-	$(CXX) -c $(ALL_CXXFLAGS) $< -o $@ 
-
-# Compile: create object files from C source files.
-.c.o:
-	$(CC) -c $(ALL_CFLAGS) $< -o $@ 
-
-
-# Compile: create assembler files from C source files.
-.c.s:
-	$(CC) -S $(ALL_CFLAGS) $< -o $@
-
+applet/$(TARGET).elf: applet/$(TARGET).cpp applet/core.a Configuration.h
+	@echo "  CXX   $@"
+	@$(CC) $(ALL_CXXFLAGS) -Wl,--gc-sections -o $@ applet/$(TARGET).cpp -L. applet/core.a $(LDFLAGS)
 
-# Assemble: create object files from assembler source files.
-.S.o:
-	$(CC) -c $(ALL_ASFLAGS) $< -o $@
+applet/core.a: $(OBJ) Configuration.h
+	@for i in $(OBJ); do echo "  AR    $$i"; $(AR) rcs applet/core.a $$i; done
 
+%.o: %.c Configuration.h $(MAKEFILE)
+	@echo "  CC    $@"
+	@$(CC) -c $(ALL_CFLAGS) $< -o $@
 
+%.o: %.cpp Configuration.h $(MAKEFILE)
+	@echo "  CXX   $@"
+	@$(CXX) -c $(ALL_CXXFLAGS) $< -o $@
 
 # Target: clean project.
 clean:
-	$(REMOVE) applet/$(TARGET).hex applet/$(TARGET).eep applet/$(TARGET).cof applet/$(TARGET).elf \
-	applet/$(TARGET).map applet/$(TARGET).sym applet/$(TARGET).lss applet/core.a \
+	@echo "  RM    applet/*"
+	@$(REMOVE) applet/$(TARGET).hex applet/$(TARGET).eep applet/$(TARGET).cof applet/$(TARGET).elf \
+		applet/$(TARGET).map applet/$(TARGET).sym applet/$(TARGET).lss applet/$(TARGET).cpp applet/core.a \
 		$(OBJ) $(LST) $(SRC:.c=.s) $(SRC:.c=.d) $(CXXSRC:.cpp=.s) $(CXXSRC:.cpp=.d)
+	@echo "  RMDIR applet/"
+	@rmdir applet
 
 depend:
 	if grep '^# DO NOT DELETE' $(MAKEFILE) >/dev/null; \