通用Makefile编辑文件夹下多个文件编译成多个程序

######################################
#
######################################
#source file
#源文件，自动找所有.c和.cpp文件，并将目标定义为同名.o文件
SOURCE := $(wildcard *.c) $(wildcard *.cpp)
OBJS := $(patsubst %.c,%.o,$(patsubst %.cpp,%.o,$(SOURCE)))

#$(warning $(SOURCE))
#$(warning $(OBJS))
#target you can change test to what you want
#目标文件名，输入任意你想要的执行文件名
TARGET := $(patsubst %.c,%,$(patsubst %.cpp,%.o,$(SOURCE)))
#$(warning $(TARGET))
#compile and lib parameter
#编译参数
CC := gcc
LIBS := -lpthread -lsqlite3
DEFINES :=
LDFLAGS :=
INCLUDE := -I.
#CFLAGS := -g -Wall $(DEFINES) $(INCLUDE)
CFLAGS += -Wall -O2 $(DEFINES) $(INCLUDE)

#外部变量传入编译参数
ifdef thread
CFLAGS += -DTHREAD
endif

ifdef signal
CFLAGS += -DSIGNAL
endif

ifdef njournal
CFLAGS += -DNJOURNAL
endif

ifdef string
CFLAGS += -DSTRING
endif
CXXFLAGS:= $(CFLAGS)


#i think you should do anything here
#下面的基本上不需要做任何改动了
.PHONY : everything objs clean veryclean rebuild

everything : $(TARGET)

all : $(TARGET)

objs : $(OBJS)

rebuild: veryclean everything

clean :
    @rm -fr *.so
    @rm -fr *.o
    @rm -fr $(TARGET)

veryclean : clean
    rm -fr $(TARGET)

$(TARGET) : $(OBJS)
    @$(CC) $(CXXFLAGS) $@.o $(LDFLAGS) $(LIBS) -o $@

%.o : %.c
    @$(CC) $(CFLAGS) -c $< -o $@

make clean
make string=1 thread=1 signal=1 njournal=1
string thread signal njournal是参数可以影响到源代码中的
#ifdef STRING/THREAD/SIGNAL/NJOURNAL
    thing1
#else
    thing2
#endif