使用CMakeLists.txt设置Qt5 -文件未发现错误

Setting up Qt5 with CMakeLists.txt - file not found errors

本文关键字：文件 未发现 错误 Qt5 CMakeLists txt 设置 使用      更新时间：2023-10-16

我正在尝试在OS x上设置一个cmake项目。我几乎已经编译了它，但我在获得Qt5工作时遇到了一点麻烦。

当我尝试编译时，我得到:

fatal error: 'QtCore/QDir' file not found
fatal error: 'QtCore/QDate' file not found

当我检查我的代码时，IDE用红色突出显示QtCore和QtWidgets，表明没有找到它们。

你们知道我错过了什么吗?

我的CMakeLists.txt如下:

cmake_minimum_required(VERSION 3.3)
project(miniLogbook)
subdirs(sources headers lib other)
#For a basic project, you should probably only need to edit these    variables
#Base QT directory
set(QT_PATH "/Users/rwardrup/Qt")
#Build output path of your QT Creator project
set(QT_BIN "./ml_debug")
#QT Version used, e.g. Probably found in ${QT_PATH}
set(QT_VERSION "5.7")
#Libraries to link to
set(QT_LIBRARIES Qt5::Core Qt5::Widgets Qt5::Gui)
#Libraries required. Probably the same as above minus the '::'.     find_package() will be called on these
set(QT_LIBRARIES_REQUIRED Qt5Core Qt5Widgets Qt5Gui)
#################################################################
#Pull needed header files generated by QT first
set(QT_GENERATED qtGenerated)
add_custom_target(${QT_GENERATED})
#Get all header files in the directory
file(GLOB QT_GEN_HEADERS ${QT_BIN}/*.h)
#Copy them to the project dir
foreach(QT_GEN_HEADERS ${QT_GEN_HEADERS})
    add_custom_command(TARGET ${QT_GENERATED} PRE_BUILD COMMAND
            ${CMAKE_COMMAND} -E copy_if_different
            ${QT_GEN_HEADERS} ${CMAKE_SOURCE_DIR})
endforeach()
#Build tool paths
set(CMAKE_CXX_COMPILER "/usr/bin/g++")
set(CMAKE_AR "/usr/bin/ar")
set(CMAKE_LINKER "/usr/bin/g++")
#find packages
foreach(QT_LIBRARIES_REQUIRED ${QT_LIBRARIES_REQUIRED})
    find_package( ${QT_LIBRARIES_REQUIRED} REQUIRED )
endforeach()
file(GLOB QT_CPP_GENERATED ${QT_BIN}/*.cpp)
set(SOURCES sources/main.cpp sources/mainwindow.cpp     headers/mainwindow.h ${QT_GEN_HEADERS} ${QT_CPP_GENERATED})
set(Boost_USE_STATIC_LIBS OFF)
set(Boost_USE_MULTITHREADED ON)
set(Boost_USE_STATIC_RUNTIME OFF)
find_package(Boost 1.59.0 COMPONENTS filesystem)
if(Boost_FOUND)
    include_directories(${Boost_INCLUDE_DIRS})
    add_executable(miniLogbook ${SOURCES})
    add_dependencies(${PROJECT_NAME} ${QT_GENERATED})
    target_link_libraries(${PROJECT_NAME} ${QT_LIBRARIES}     ${Boost_LIBRARIES})
endif()

你的foreach循环有bug

在这两种情况下，都是用第一个元素覆盖要循环遍历的值列表。

它们应该按照以下模式阅读:

foreach(_loop_var ${list_of_values})
  # do stuff with ${_loop_var}
endforeach(_loop_var)

我相信你所面临的问题只是CMake没有搜索所有你想要搜索的Qt5模块的症状。你可能需要重新检查CMake缓存和日志输出。

旁注:将系统组件的绝对路径硬编码到CMake文件中是非常糟糕的做法。这使得CMake(几乎)毫无用处。如果你不想给CMake很多命令行参数来指定特定的位置，请阅读工具链文件。

如果这个CMakeLists文件是来自某个地方的示例模板，我建议不要使用CMake相关建议的源代码

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