MacOS Sierra - cmake失败，qt5

我想用cmake构建一个cpp/qt5项目，但是编译返回一个关于QT5的错误。MacOS Sierra - cmake失败，qt5

我和自制安装QT5，

当我这样做：

brew --prefix qt5

我得到

/usr/local/Cellar/qt5/5.6.0

所以我在我的项目的build文件夹，我这样做：

cmake .. -DCMAKE_PREFIX_PATH=$(brew --prefix qt5) -G Xcode -DBUILD_TESTS=ON -DBUILD_TESTS_COVERAGE=off

回到我这个错误：

CMake Error at CMakeLists.txt:124 (find_package): 
    By not providing "FindQt5.cmake" in CMAKE_MODULE_PATH this project has 
    asked CMake to find a package configuration file provided by "Qt5", but 
    CMake did not find one. 

    Could not find a package configuration file provided by "Qt5" with any of 
    the following names: 

    Qt5Config.cmake 
    qt5-config.cmake 

    Add the installation prefix of "Qt5" to CMAKE_PREFIX_PATH or set "Qt5_DIR" 
    to a directory containing one of the above files. If "Qt5" provides a 
    separate development package or SDK, be sure it has been installed.

错误在CMakelist.txt行：

## QT5 ## 

find_package(Qt5 COMPONENTS Core Gui Widgets Concurrent Qml Quick REQUIRED) 

set_target_properties(${BIN_NAME} PROPERTIES AUTOMOC ON) 
set_target_properties(${BIN_NAME} PROPERTIES AUTOUIC ON) 
target_link_libraries(${BIN_NAME} PUBLIC Qt5::Core PUBLIC Qt5::Widgets PUBLIC Qt5::Gui PUBLIC Qt5::Qml PUBLIC Qt5::Quick PUBLIC Qt5::Concurrent) 

#########

我也尝试将-DQt5_DIR=$(brew --prefix qt5)添加到命令，同结果。

任何想法？感谢

来源

2016-10-17 F4Ke

进行文件'Qt5Config.cmake'存在于你的QT5安装中？ – Tsyvarev

如何验证？ – F4Ke

我不熟悉brew，但它肯定应该能够提供已安装软件包的文件列表。但在特定情况下，在'/ usr/local/Cellar/qt5/5.6.0'下搜索给定的文件就足够了：变量'CMAKE_PREFIX_PATH'只是为搜索内容添加新的*前缀*。至于变量'Qt5_DIR'，为了产生效果，这个目录应该直接包含所需的文件。 – Tsyvarev

尝试：

-DQt5_DIR=$(brew --prefix qt5)/lib/cmake/Qt5

注意事项使用set_target_properties在使用target_link_libraries时可以指定多个属性，并指定PUBLIC范围为多个值：

set_target_properties(${BIN_NAME} 
    PROPERTIES 
    AUTOMOC ON 
    AUTOUIC ON 
) 
target_link_libraries(${BIN_NAME} 
    PUBLIC 
    Qt5::Core 
    Qt5::Widgets 
    Qt5::Gui 
    Qt5::Qml 
    Qt5::Quick 
    Qt5::Concurrent 
)

来源

2016-10-17 08:39:38 wasthishelpful

MacOS Sierra - cmake失败，qt5

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