cmake 找不到 qt 5.1.1

cmake does not find qt 5.1.1(cmake 找不到 qt 5.1.1)

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问题描述

我刚刚为 Windows 32 位(MinGW 4.8,OpenGL)安装了 Qt 5.1.1,并尝试将其添加到我的 cmake 中.但 CMake 只是不想找到它,我不知道为什么.我错过了什么?我需要设置环境变量还是什么?

I just installed the Qt 5.1.1 for Windows 32-bit (MinGW 4.8, OpenGL) and tried to add it to my cmake. But CMake just does not want to find it and i dont know why. What am i missing? Do i need to set an environment variable or something?

这是我的 cmake :

Here is my cmake :

cmake_minimum_required( VERSION 2.8.11 )
PROJECT(Blemmer)
# Find includes in corresponding build directories
set(CMAKE_INCLUDE_CURRENT_DIR ON)
# Instruct CMake to run moc automatically when needed.
set(CMAKE_AUTOMOC ON)
# Detect and add SFML
set(CMAKE_MODULE_PATH "${CMAKE_SOURCE_DIR}/cmake/Modules" ${CMAKE_MODULE_PATH})

set( CMAKE_RUNTIME_OUTPUT_DIRECTORY ${CMAKE_BINARY_DIR}/bin )
set( CMAKE_LIBRARY_OUTPUT_DIRECTORY ${CMAKE_BINARY_DIR}/lib )
find_package(SFML REQUIRED system window graphics network audio)
# The QUIET option disables messages if the package cannot be found. 
FIND_PACKAGE(Qt5Widgets) 
add_subdirectory(Entity)
add_subdirectory(Engine)
add_subdirectory(Game)
add_executable(Blemmer main.cpp)

include_directories(${SFML_INCLUDE_DIR} ${PROJECT_SOURCE_DIR})
target_link_libraries(Blemmer ${SFML_LIBRARIES} Game Engine Qt5::Widgets)

这是 cmake-gui 的输出:

and this is the output of cmake-gui :

CMake Warning at CMakeLists.txt:14 (FIND_PACKAGE):
  By not providing "FindQt5Widgets.cmake" in CMAKE_MODULE_PATH this project
  has asked CMake to find a package configuration file provided by
  "Qt5Widgets", but CMake did not find one.

  Could not find a package configuration file provided by "Qt5Widgets" with
  any of the following names:

    Qt5WidgetsConfig.cmake
    qt5widgets-config.cmake

  Add the installation prefix of "Qt5Widgets" to CMAKE_PREFIX_PATH or set
  "Qt5Widgets_DIR" to a directory containing one of the above files.  If
  "Qt5Widgets" provides a separate development package or SDK, be sure it has
  been installed.

推荐答案

Qt安装需要设置CMAKE_PREFIX_PATH.

You need to set the CMAKE_PREFIX_PATH to the Qt installation.

见http://doc.qt.io/qt-5/cmake-manual.html

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