makefile 编译C++，opencv， qt5模板

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本文介绍两种适用于C++项目的Makefile配置方案，包括单一目录下的C/C++混合编程及多级目录结构下的项目组织方式。通过详细示例展示了如何设置编译参数、链接库依赖等，帮助开发者快速构建项目。

摘要生成于 C知道，由 DeepSeek-R1 满血版支持，前往体验 >

CC := g++
TARGET := QtChart
INCLUDE := -I./ `pkg-config --cflags opencv`
LIBS := -lpthread `pkg-config --libs opencv`

# C++语言编译参数
CXXFLAGS := -std=c++11 -g -Wall

# C预处理参数
# CPPFLAGS := 

OBJECTS := DaHuaGEVCam.o mainwidget.o callout.o chartview.o CubicSplineInterpolation.o BeamCalibration.o beamCore.o main.o

$(TARGET): $(OBJECTS) 
	$(CC) -o $(TARGET) $(OBJECTS) $(LIBS) 

# $@自动化变量，表示目前规则中所有的所有目标集合
%.o:%.cpp 
	$(CC) -c $(CXXFLAGS) $(INCLUDE) $< -o $@ 

.PHONY : clean
clean: 
	-rm -f $(OBJECTS) $(TARGET)

C, C++混合编程通用Makefile模版

第一个模版：所有.c, .cpp, *.h文件都在同一个目录下，没有分层。

######################################
#
######################################
#source file
SOURCE  := $(wildcard *.c) $(wildcard *.cpp)
#源文件中的.cpp文件和.c文件用.o替代
OBJS    := $(patsubst %.c,%.o,$(patsubst %.cpp,%.o,$(SOURCE)))

#target you can change test to what you want
TARGET  := host_send 

#compile and lib parameter
CC      := gcc
CXX     := g++

LIBS    := -lusb-1.0 -luvc -lopencv_highgui -lreadline -lopencv_imgcodecs -lopencv_imgproc -lc -lopencv_calib3d  -lopencv_core
#LIBS    := -lusb-1.0 -luvc
LDFLAGS := -L/usr/libx86_64-linux-gnu/  -L/usr/lib/x86_64-linux-gnu -L/usr/local/lib -L.
DEFINES := -fpic -Wl,-rpath=.
INCLUDE := -I. -I./include -I/usr/include/libusb-1.0 -I/usr/local/include
CFLAGS  := -g -Wall -O3 $(DEFINES) $(INCLUDE)
CXXFLAGS:= $(CFLAGS)


#i think you should do anything here
.PHONY : everything objs clean veryclean rebuild

everything : $(TARGET)

all : $(TARGET)

objs : $(OBJS)

rebuild: veryclean everything


clean :
    rm -rf *.o
    rm $(TARGET)

veryclean : clean
    rm -rf $(TARGET)

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

第二个模版：.c和.cpp文件在src目录，文件结构更清晰。

BINFILE = test

ifdef VERBOSE
        Q =
        E = @true 
else
        Q = @
        E = @echo 
endif


CFILES := $(shell find src -mindepth 1 -maxdepth 4 -name "*.c")
CXXFILES := $(shell find src -mindepth 1 -maxdepth 4 -name "*.cpp")

INFILES := $(CFILES) $(CXXFILES)

OBJFILES := $(CXXFILES:src/%.cpp=%) $(CFILES:src/%.c=%)
DEPFILES := $(CXXFILES:src/%.cpp=%) $(CFILES:src/%.c=%)
OFILES := $(OBJFILES:%=obj/%.o)


COMMONFLAGS := -Wall -Wextra -pedantic -O3 
DEFINES := -fpic -Wl,-rpath=.
INCLUDE := -I. -I./include -I/usr/include/libusb-1.0 -I/usr/local/include
LDFLAGS := -L/usr/libx86_64-linux-gnu/  -L/usr/lib/x86_64-linux-gnu -L/usr/local/lib -L.
LIBS    := -lusb-1.0 -lopencv_core -lopencv_highgui -lreadline -lopencv_calib3d -lopencv_imgcodecs -lc -lopencv_imgproc

ifdef DEBUG
        COMMONFLAGS := $(COMMONFLAGS) -g
endif
CFLAGS := $(COMMONFLAGS) --std=c99 $(DEFINES) $(INCLUDE)
CXXFLAGS := $(COMMONFLAGS) --std=c++0x $(DEFINES) $(INCLUDE)
DEPDIR := deps

all: $(BINFILE)
ifeq ($(MAKECMDGOALS),)
-include Makefile.dep
endif
ifneq ($(filter-out clean, $(MAKECMDGOALS)),)
-include Makefile.dep
endif

CC = gcc
CXX = g++


-include Makefile.local

.PHONY: clean all depend
.SUFFIXES:
obj/%.o: src/%.c
    $(E)C-compiling $<
    $(Q)if [ ! -d `dirname $@` ]; then mkdir -p `dirname $@`; fi
    $(Q)$(CC) -o $@ -c $< $(CFLAGS)
obj/%.o: src/%.cpp
    $(E)C++-compiling $<
    $(Q)if [ ! -d `dirname $@` ]; then mkdir -p `dirname $@`; fi
    $(Q)$(CXX) -o $@ -c $< $(CXXFLAGS)
Makefile.dep: $(CFILES) $(CXXFILES)
    $(E)Depend
    $(Q)for i in $(^); do $(CXX) $(CXXFLAGS) -MM "$${i}" -MT obj/`basename $${i%.*}`.o; done > $@


$(BINFILE): $(OFILES)
    $(E)Linking $@
    $(Q)$(CXX) -o $@ $(OFILES) $(LDFLAGS) $(LIBS)
clean:
    $(E)Removing files
    $(Q)rm -f $(BINFILE) obj/* Makefile.dep