c++ - 无法使用 makefile 编译

Question

我在 ubuntu 上有一些 opencv c++ 代码，其文件夹结构是:

|-- bin
|   |-- camera-calib.o
|   `-- frontalize.o
|-- docs
|   `-- notes.md
|-- LICENSE.md
|-- Makefile
|-- README.md
|-- shape_predictor_68_face_landmarks.dat
`-- src
    |-- calib
    |   |-- calib.cpp
    |   |-- calib.h
    |   |-- POSIT.cpp
    |   |-- POSIT.h
    |   |-- pro
    |   |   |-- calib.o
    |   |   |-- Makefile
    |   |   |-- POSIT.o
    |   |   |-- pro
    |   |   |-- pro.pro
    |   |   |-- pro.pro~
    |   |   `-- util.o
    |   `-- util
    |       |-- calib_util.cpp
    |       `-- calib_util.h
    |-- camera-calib.cpp
    |-- camera-calib.h
    |-- check_resources.h
    |-- fatialfeaturedetect.cpp
    |-- frontalization-models
    |   |-- DataAlign2LFWa.mat
    |   |-- eyemask.mat
    |   `-- model3Ddlib.mat
    |-- frontalize.cpp
    |-- frontalize.h
    `-- main.cpp

我使用的 Makefile 是:

EXE = face_frontalization
OBJ_DIR = bin
CFLAGS = -g -w

dummy_build_folder := $(shell mkdir -p $(OBJ_DIR))

 # c++ source files of the project
CXXFILES = $(shell find src -maxdepth 3 -type f -name '*.cpp')
CXXOBJ = $(patsubst src/%.cpp,bin/%.o,$(CXXFILES))

INCLUDE = -I/usr/include/dlib-18.18
LIBS = `pkg-config --libs opencv`
CXXFLAGS = `pkg-config --cflags opencv` -w -Wall -Wextra -g -std=c++0x
CFLAGS = `pkg-config --cflags opencv` -g -w

ifdef V
MUTE =
VTAG = -v
else
MUTE = @
endif

all: $(EXE)
    # build successful

$(EXE): $(CXXOBJ)
    $(CXX) $(CXXOBJ) -o $(EXE) $(LIBS)

$(OBJ_DIR)/%.o: src/%.cpp
    $(CXX) $(CXXFLAGS) $(INCLUDE) $< -c -o $@
    $(BUILD)

$(OBJ_DIR)/%.o: src/%.c
    $(CC) $(CFLAGS) $(INCLUDE) $< -c -o $@

run: all
    ./$(EXE)

clean:
    # Cleaning...
    -rm -f $(EXE) $(CXXOBJ)
    rmdir bin/

现在我收到这个错误:

6 of 7
g++ `pkg-config --cflags opencv` -w -Wall -Wextra -g -std=c++0x -I/usr/include/dlib-18.18 src/calib/util/calib_util.cpp -c -o bin/calib/util/calib_util.o
Assembler messages:
Fatal error: can't create bin/calib/util/calib_util.o: No such file or directory
make: *** [bin/calib/util/calib_util.o] Error 1

我以前没有遇到过这个错误，所以不知道为什么会出现。该文件存在于目录中。我该怎么办？

Answer 1

看起来你的目录结构有点不对。

can't create bin/calib/util/calib_util.o: No such file or directory

根据您的层次结构，bin 下没有目录calib/util。尝试创建它并再次运行 make。