MacOS Sierra - cmake以qt5失败

Question

我正在尝试使用cmake构建cpp/qt5项目,但编译返回有关QT5的错误.

我用Homebrew安装了QT5,

当我做 :

brew --prefix qt5

我明白了

 /usr/local/Cellar/qt5/5.6.0

---

所以我在build我项目的文件夹中,我这样做:

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

给我这个错误:

    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.

CMakelist.txt中的错误行:

    ## 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-DQt5_DIR=$(brew --prefix qt5)在命令中添加一个相同的结果.

---

有任何想法吗 ？谢谢

Answer 1

尝试:

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

请注意,您可以在使用时指定多个属性set_target_properties,并在使用时指定PUBLIC多个值的范围target_link_libraries:

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
)