一个makefile使用实例

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# cross compile tools
#TOOL_PREFIX=arm-wrs-linux-gnueabi-armv6jel_vfp-uclibc_small-

ROOTDIR = ../..
include $(ROOTDIR)/Rules.make

TARGET = libcamera.a
DEF= -Wall -O2 -Werror
INCLUDE_DIR=./include
INTERFACE_DIR=./interface
RELEASE_DIR=release/
OUTPUT_DIR_H=../../../include/camera_lib
OUTPUT_DIR_A=$(IPC_LIB_DIR)

#8127ƽ̨ʹԃ
ifeq ($(PLAT_FORM), dm8127)
DEF += -DCAM_DM8127 -DDM8127
RELEASE_DIR=release/dm8127
endif

INCLUDE := -I$(INCLUDE_DIR)/Arch-davinciHD

#ADD INCLUDE FOR CCDPARAM
DEF += -DFOR9000 -DNET_EMAIL
INCLUDE += -I$(ROOT_DIR)/include \
     -I$(INTERFACE_DIR) \
     -I$(ROOT_DIR)/app/include \
     -I$(ROOT_DIR)/app/include/modules_wrapper \
     -I$(DADSP_INC_DIR) \
     -I../../openssl-1.0.0a/include \
     -I$(PLATFORM_INC_DIR) \
     -I$(INCLUDE_DIR)

SOURCES :=

-include $(shell pwd)/SOURCES

KBUILD_VERBOSE = @
ifdef V
ifeq ("$(origin V)", "command line")
KBUILD_VERBOSE = #SPACE
endif
endif

CC=$(KBUILD_VERBOSE)$(TOOL_PREFIX)gcc
AR = $(KBUILD_VERBOSE)$(TOOL_PREFIX)ar
RANLIB = $(KBUILD_VERBOSE)$(TOOL_PREFIX)ranlib

DEF +=

C_SRCS = $(filter %.c, $(SOURCES))
CPP_SRCS = $(filter %.cpp,$(SOURCES))

C_OBJS = $(C_SRCS:%.c=%.o)
CPP_OBJS = $(CPP_SRCS:%.cpp=%.o)

CFLAGS = $(INCLUDE) $(DEF)

RETAILTARGET=$(RELEASE_DIR)/$(TARGET)

.PHONY: all
all: $(RETAILTARGET)
$(RETAILTARGET) : $(C_OBJS) $(CPP_OBJS)

echo $(RETAILTARGET)
echo $(RELEASE_DIR)
#echo $(CFLAGS)
echo $@
echo 1111

@echo "current platform is $(PLAT_FORM)"
@mkdir -p $(RELEASE_DIR)
@$(AR) -rc $@ $(C_OBJS) $(CPP_OBJS)
@$(RANLIB) $@

@echo $(OUTPUT_DIR_A)
@echo $(INTERFACE_DIR)
@echo $(ROOTDIR)

cp $(RETAILTARGET) $(OUTPUT_DIR_A)/ -f
cp $(INTERFACE_DIR)/camera_lib_interface.h $(ROOTDIR)/app/include/ -f

%.o:%.c
@echo "Compling $@"
$(CC) $(CFLAGS) -c $^ -o $@

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

clean :
find ./ -name "libcamera.a" | xargs rm -f
find ./ -name "*.o" | xargs rm -f

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