一个比较通用的Makefile

TARGET = xxx

SRCDIRS = .
SRCEXTS := .c .cpp
SRC = $(foreach d,$(SRCDIRS),$(wildcard $(addprefix $(d)/*,$(SRCEXTS))))
OBJ = $(foreach x,$(SRCEXTS), $(patsubst %$(x),%.o,$(filter %$(x),$(SRC))))

CFLAGS += -Wall -g \
            -I../libjson/include/ \
            -I../mylib \

CPPFLAGS += $(CFLAGS)
CXXFLAGS += $(CFLAGS)

LDLIBS += -lm \
        ../libjson/lib/$(CROSS)/libjson.a \
        ../netzip_build/lib/libz.a

$(TARGET): $(OBJ)
    $(CXX) -o $(TARGET) $(OBJ)  $(CFLAGS) $(CPPFLAGS) $(LDFLAGS)   $(LDLIBS)

%.o: %.c
    $(CC) -c $(CPPFLAGS) $(CFLAGS) $< -o [email protected]

%.o: %.cpp
    $(CXX) -c $(CPPFLAGS) $(CXXFLAGS) $< -o [email protected]

%.d: %.c
    @set -e; rm -f [email protected]; \
    $(CC) -MM $(CFLAGS) $< > [email protected]$$$$; \
    sed ‘s,\($*\)\.o[ :]*,\1.o [email protected] : ,g‘ < [email protected]$$$$ > [email protected]; \
    rm -f [email protected]$$$$

%.d: %.cpp
    @set -e; rm -f [email protected]; \
    $(CXX) -MM $(CPPFLAGS) $< > [email protected]$$$$; \
    sed ‘s,\($*\)\.o[ :]*,\1.o [email protected] : ,g‘ < [email protected]$$$$ > [email protected]; \
    rm -f [email protected]$$$$

include $(OBJ:.o=.d)

install:
    cp $(TARGET) /srv/nfs

clean:
    rm -f $(TARGET)
    rm -f $(OBJ)