Makefile 多个文件生成一个可执行文件

#LINUXPUBLICPATH = ../public/
#add wain 2016-01-12

CC := mipsel-linux-gcc


EXEC = upsgsm
# UPSWARNSVROBJS  = gsmprocess.o cloud.o gsm.o cJSON.o gsm_datastructure.o gsm_uart.o md5.o periphery.o public.o ups_gsm.o


LIBSPATH = /opt/rampis-mt76x8-gcc7.3.0_musl/openwrt_usr

INCLUDEPATH := -I$(LIBSPATH)/include/ -I/opt/code/L2001_public/release/ramips/include -I$(LIBSPATH)/lib/libiconv-full/include -I./
#-I./curl/include/
LIBRARYPATH := -L$(LIBSPATH)/lib/  -L$(LIBSPATH)/lib/libiconv-full/lib
#-L./curl/lib/

LIBPUBLIC  := /opt/code/L2001_public/release/ramips/lib/libpublic.a

#LDLIBS += $(INCLUDEPATH) $(LIBRARYPATH) -lzlog -ljson-c -lcurl -lz -lpthread 
LIBS := $(LIBRARYPATH) -lzlog -lz -liconv -ljson-c $(LIBPUBLIC)

# CFLAGS = -Wall -O -g -D EMBED $(INCLUDEPATH) $(SNMPDINCPATH)
CFLAGS = -Wall -O -g -D EMBED


#LIBPUBLIC   = /workdir/guojun/work/V2CODE/L1607_public/source/trunk/libpublic.a

SRCS := $(wildcard *.c) $(wildcard ./src/*.c)
OBJS := $(patsubst %.c,%.$(TARGET).o, $(SRCS))
DEPS := $(patsubst %.$(TARGET).o,%.$(TARGET).d, $(OBJS))

all: $(TARGET)/$(EXEC)
$(TARGET)/$(EXEC): $(DEPS) $(OBJS)
    test -d $(TARGET) || mkdir -p $(TARGET)
    $(CC) -o $(TARGET)/$(EXEC) $(OBJS) $(LIBS)
    
    # test -d ../../release/$(TARGET)/usr/local || mkdir -p ../../release/$(TARGET)/usr/local
    # test -d ../../release/$(TARGET)/usr/local/bin || mkdir -p ../../release/$(TARGET)/usr/local/bin
    # $(STRIP) $@
    # cp  -rf $@ ../../release/$(TARGET)/usr/local/bin
    test -d ../../release/$(TARGET)/bin || mkdir -p ../../release/$(TARGET)/bin
    $(STRIP) $@
    cp  -rf $@ ../../release/$(TARGET)/bin

%.$(TARGET).d : %.c
    $(CC) $(INCLUDEPATH) -MM $< > $@
    $(CC) $(INCLUDEPATH) -MM $< -MQ $@ >> $@

%.$(TARGET).o : %.c public.h
    $(CC) $(CFLAGS) -c $(INCLUDEPATH) -o $@ $<


.PHONY: clean
clean:
    -rm $(TARGET)/$(EXECUTABLE) -f
    -rm $(OBJS)  -f
    -rm $(DEPS) -f

depend : $(DEPS)
    @echo "Dependencies are now up-to-date."

-include $(DEPS)

参考链接: https://www.gnu.org/software/make/manual/html_node/Automatic-Prerequisites.html