我看的书说如有多个文件要编译的话，就在SRC项的后面加入文件名，但是我的Makefile没有SRC项，正确来讲我的winavr里面的例子也没有SRC项啊，但是我试过它的是可以编译多个文件的。请问我想编译多个文件应该怎么做呢？我的Winavr的例子如下：
PRG = stdiodemo
OBJ = stdiodemo.o hd44780.o lcd.o uart.o
MCU_TARGET = atmega16
OPTIMIZE = -Os
DEFS =
LIBS =
# You should not have to change anything below here.
CC = avr-gcc
CFLAGS = -g -Wall $(OPTIMIZE) -mmcu=$(MCU_TARGET) $(DEFS)
LDFLAGS = -Wl,-Map,$(PRG).map
OBJCOPY = avr-objcopy
OBJDUMP = avr-objdump
all: $(PRG).elf lst text eeprom
$(PRG).elf: $(OBJ)
$(CC) $(CFLAGS) $(LDFLAGS) -o $@ $^ $(LIBS)
clean:
rm -rf *.o $(PRG).elf *.eps *.png *.pdf *.bak
rm -rf *.lst *.map $(EXTRA_CLEAN_FILES)
lst: $(PRG).lst
%.lst: %.elf
$(OBJDUMP) -h -S $< > $@
# Rules for building the .text rom images
text: hex bin srec
hex: $(PRG).hex
bin: $(PRG).bin
srec: $(PRG).srec
%.hex: %.elf
$(OBJCOPY) -j .text -j .data -O ihex $< $@
%.srec: %.elf
$(OBJCOPY) -j .text -j .data -O srec $< $@
%.bin: %.elf
$(OBJCOPY) -j .text -j .data -O binary $< $@
# Rules for building the .eeprom rom images
eeprom: ehex ebin esrec
ehex: $(PRG)_eeprom.hex
ebin: $(PRG)_eeprom.bin
esrec: $(PRG)_eeprom.srec
%_eeprom.hex: %.elf
$(OBJCOPY) -j .eeprom --change-section-lma .eeprom=0 -O ihex $< $@
%_eeprom.srec: %.elf
$(OBJCOPY) -j .eeprom --change-section-lma .eeprom=0 -O srec $< $@
%_eeprom.bin: %.elf
$(OBJCOPY) -j .eeprom --change-section-lma .eeprom=0 -O binary $< $@
# Every thing below here is used by avr-libc's build system and can be ignored
# by the casual user.
JPEGFILES = stdiodemo-setup.jpg
JPEG2PNM = jpegtopnm
PNM2EPS = pnmtops
JPEGRESOLUTION = 180
EXTRA_CLEAN_FILES = *.hex *.bin *.srec *.eps
dox: ${JPEGFILES:.jpg=.eps}
%.eps: %.jpg
$(JPEG2PNM) $< |\
$(PNM2EPS) -noturn -dpi $(JPEGRESOLUTION) -equalpixels \
> $@
我应该改哪里呢？我试过只改“OBJ”为对应的文件，还是不行啊 |
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