C++ 使用cmake安装动态库

我有自己编写的

C++/Qt

库。我知道，对于其发行版，cmake必须安装.dll

dll

（或

.so

用于Linux）文件和头文件。因此，我编写了以下

CMakeLists.txt

：

cmake_minimum_required(VERSION 3.16)
project(my_project)

set(CMAKE_CXX_STANDARD 14)
set(CMAKE_AUTOMOC ON)
set(CMAKE_AUTORCC ON)
set(CMAKE_AUTOUIC ON)

find_package(Qt5 COMPONENTS Core Network Sql REQUIRED)

set(HEADERS some_class.h)
set(SOURCES some_class.cpp)

add_library(${PROJECT_NAME} SHARED ${HEADERS} ${SOURCES})

target_link_libraries(${PROJECT_NAME} Qt5::Core Qt5::Network Qt5::Sql)

install(TARGETS ${PROJECT_NAME} ARCHIVE DESTINATION "lib"
                                RUNTIME DESTINATION "bin"
                                COMPONENT library)
install(FILES ${HEADERS} DESTINATION "include")

cmake_minimum_required(VERSION 3.16)
project(some_project VERSION 1.0 LANGUAGES CXX)

# Parameters initialization
set(CMAKE_CXX_STANDARD 14)
set(CMAKE_AUTOMOC ON)
set(CMAKE_AUTORCC ON)
set(CMAKE_AUTOUIC ON)

# Search for required libraries
find_package(Qt5 COMPONENTS Core Network Sql REQUIRED)

# Project files
set(HEADERS some_class.h)
set(SOURCES some_class.cpp)

# Building the library
add_library(${PROJECT_NAME} SHARED ${HEADERS} ${SOURCES})

# Linking the necessary libraries
target_link_libraries(${PROJECT_NAME} Qt5::Core Qt5::Network Qt5::Sql)

# Setting which header files should be supplied with the library
set_target_properties(${PROJECT_NAME} PROPERTIES PUBLIC_HEADER "${HEADERS}")

# Installing the library
install(TARGETS ${PROJECT_NAME}
        EXPORT "${PROJECT_NAME}-config"
        RUNTIME DESTINATION "${CMAKE_INSTALL_BINDIR}"
        LIBRARY DESTINATION "${CMAKE_INSTALL_LIBDIR}/${PROJECT_NAME}"
        ARCHIVE DESTINATION "${CMAKE_INSTALL_LIBDIR}/${PROJECT_NAME}"
        PUBLIC_HEADER DESTINATION "${CMAKE_INSTALL_INCLUDEDIR}/${PROJECT_NAME}"
        PRIVATE_HEADER DESTINATION "${CMAKE_INSTALL_INCLUDEDIR}/${PROJECT_NAME}"
        INCLUDES DESTINATION "${CMAKE_INSTALL_INCLUDEDIR}/${PROJECT_NAME}")

install(EXPORT "${PROJECT_NAME}-config" DESTINATION "${CMAKE_INSTALL_LIBDIR}/cmake/${PROJECT_NAME}")

export(TARGETS ${PROJECT_NAME} FILE "${PROJECT_NAME}-exports.cmake")

我得到了想要放在目录

C:\ProgramFiles（x86）\my\u project

中的文件：

-- lib/libmy_project.dll.a
-- bin/libmy_project.dll
-- include/some_class.h

但是，一旦我尝试使用测试程序偷偷链接我的库：

find_package(my_project REQUIRED)
# ....
target_link_libraries(${PROJECT_NAME} my_project) 

我有一个错误：

By not providing "Findmy_project.cmake" in CMAKE_MODULE_PATH this
  project has asked CMake to find a package configuration file provided by
  "my_project", but CMake did not find one.

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

    my_projectConfig.cmake
    my_project-config.cmake

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

---

也就是说，他不知道去哪里找他。据我所知，CMake为我的项目提供了一个配置文件，我的库的CMakeLists.txt应该以某种方式安装它。然而，我在互联网上找到的关于这个账户的信息非常陡峭，没有解释和例子（没有吗？）。不过，如何以及在何处为库编写这些配置文件？

我还没有最终理解，但我知道了要编写什么才能正确导出库

CMakeLists.txt

：

cmake_minimum_required(VERSION 3.16)
project(my_project)

set(CMAKE_CXX_STANDARD 14)
set(CMAKE_AUTOMOC ON)
set(CMAKE_AUTORCC ON)
set(CMAKE_AUTOUIC ON)

find_package(Qt5 COMPONENTS Core Network Sql REQUIRED)

set(HEADERS some_class.h)
set(SOURCES some_class.cpp)

add_library(${PROJECT_NAME} SHARED ${HEADERS} ${SOURCES})

target_link_libraries(${PROJECT_NAME} Qt5::Core Qt5::Network Qt5::Sql)

install(TARGETS ${PROJECT_NAME} ARCHIVE DESTINATION "lib"
                                RUNTIME DESTINATION "bin"
                                COMPONENT library)
install(FILES ${HEADERS} DESTINATION "include")

cmake_minimum_required(VERSION 3.16)
project(some_project VERSION 1.0 LANGUAGES CXX)

# Parameters initialization
set(CMAKE_CXX_STANDARD 14)
set(CMAKE_AUTOMOC ON)
set(CMAKE_AUTORCC ON)
set(CMAKE_AUTOUIC ON)

# Search for required libraries
find_package(Qt5 COMPONENTS Core Network Sql REQUIRED)

# Project files
set(HEADERS some_class.h)
set(SOURCES some_class.cpp)

# Building the library
add_library(${PROJECT_NAME} SHARED ${HEADERS} ${SOURCES})

# Linking the necessary libraries
target_link_libraries(${PROJECT_NAME} Qt5::Core Qt5::Network Qt5::Sql)

# Setting which header files should be supplied with the library
set_target_properties(${PROJECT_NAME} PROPERTIES PUBLIC_HEADER "${HEADERS}")

# Installing the library
install(TARGETS ${PROJECT_NAME}
        EXPORT "${PROJECT_NAME}-config"
        RUNTIME DESTINATION "${CMAKE_INSTALL_BINDIR}"
        LIBRARY DESTINATION "${CMAKE_INSTALL_LIBDIR}/${PROJECT_NAME}"
        ARCHIVE DESTINATION "${CMAKE_INSTALL_LIBDIR}/${PROJECT_NAME}"
        PUBLIC_HEADER DESTINATION "${CMAKE_INSTALL_INCLUDEDIR}/${PROJECT_NAME}"
        PRIVATE_HEADER DESTINATION "${CMAKE_INSTALL_INCLUDEDIR}/${PROJECT_NAME}"
        INCLUDES DESTINATION "${CMAKE_INSTALL_INCLUDEDIR}/${PROJECT_NAME}")

install(EXPORT "${PROJECT_NAME}-config" DESTINATION "${CMAKE_INSTALL_LIBDIR}/cmake/${PROJECT_NAME}")

export(TARGETS ${PROJECT_NAME} FILE "${PROJECT_NAME}-exports.cmake")

安装时有一个“导出”选项，可以为您生成这样的配置文件，请参阅