Makefile

TARGET   := main.elf
CXXFLAGS := -g -Os -Wall -mmcu=msp430fr5739
CXX      := msp430-gcc
LIBS     := -lm
EXT      := c
BUILDDIR := build
 
override BUILDDIR := $(strip $(BUILDDIR))
SOURCES  := $(wildcard *.$(EXT))
OBJECTS  := $(patsubst %.$(EXT), $(BUILDDIR)/%.o, $(SOURCES))
DEPS     := $(patsubst %.$(EXT), $(BUILDDIR)/%.dep, $(SOURCES))
 
.PHONY: all
all: $(TARGET)
	 
$(TARGET): $(OBJECTS) $(DEPS)
	$(CXX) $(CXXFLAGS) -o $(TARGET) $(OBJECTS) $(LIBS)
		 
ifneq ($(MAKECMDGOALS), clean)
-include $(DEPS)
endif

$(OBJECTS): $(BUILDDIR)/%.o: %.$(EXT) $(BUILDDIR)/%.dep $(BUILDDIR)/.tag
	$(CXX) $(CXXFLAGS) -c $< -o $@

$(DEPS): $(BUILDDIR)/%.dep: %.$(EXT) $(BUILDDIR)/.tag
	mkdir -p $(dir $(@))
	$(CXX) $(CXXFLAGS) -MM $< -MT $@ -MT $(<:.$(EXT)=.o) -o $@
			    
%.tag:
	mkdir -p $(dir $(@))
	touch $@
			 
.PHONY: clean
clean:
	$(RM) -r $(BUILDDIR)