QT Creator使用cmake调用QT5自带的QSerialPort

我不是女神ヾ 2022-06-01 03:40 346阅读 0赞

QT5 自带的有 QSerialPort ,使用 QT Creator 默认的编译方式 GCC 编译的话比较容易,只需要在工程的`.pro`文件中添加下列语句即可.

QT += serialport

由于工程需要,我要使用 cmake 编译,但是一直报错,链接库失败,错误消息类似于如下:

error: undefined reference to `QSerialPortInfo:::availablePorts()

或者类似于这样

undefined reference to `QSerialPort::QSerialPort(QObject*)'
    undefined reference to `QSerialPort::~QSerialPort()'
    undefined reference to `QSerialPort::~QSerialPort()'

这个时候需要在 CMakeList.txt 中间添加如下语句

find_package(Qt5Core COMPONENTS Qt5SerialPort REQUIRED)

添加后完整 CMakeList.txt 如下

cmake_minimum_required(VERSION 3.3)
    project(untitled1)
    
    set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -std=c++11")
    
    find_package(Qt5Core  COMPONENTS Qt5SerialPort REQUIRED)
    
    set(SOURCE_FILES main.cpp)
    add_executable(untitled1 ${SOURCE_FILES})
    qt5_use_modules(untitled1 Core)

或者像这样

cmake_minimum_required(VERSION 2.8.11)
    
    project(pcl_visualizer)
    
    # init_qt: Let's do the CMake job for us
    set(CMAKE_AUTOMOC ON) # For meta object compiler
    set(CMAKE_AUTORCC ON) # Resource files
    set(CMAKE_AUTOUIC ON) # UI files
    
    # Find includes in corresponding build directories
    set(CMAKE_INCLUDE_CURRENT_DIR ON)
    
    # Find the QtWidgets library
    find_package(Qt5 REQUIRED Widgets)
    
    find_package(VTK REQUIRED)
    find_package(PCL 1.7.1 REQUIRED)
    
    # Fix a compilation bug under ubuntu 16.04 (Xenial)
    list(REMOVE_ITEM PCL_LIBRARIES "vtkproj4")
    
    include_directories(${PCL_INCLUDE_DIRS})
    add_definitions(${PCL_DEFINITIONS})
    
    set(project_SOURCES main.cpp pclviewer.cpp)
    
    add_executable(${PROJECT_NAME} ${project_SOURCES})
    
    target_link_libraries(${PROJECT_NAME} ${PCL_LIBRARIES} serial)
    
    qt5_use_modules(${PROJECT_NAME} Widgets SerialPort)