C++ cmake-未找到共享库的头文件_C++_Cmake_Shared Libraries_Header Files

C++ cmake-未找到共享库的头文件

c++ cmake

C++ cmake-未找到共享库的头文件,c++,cmake,shared-libraries,header-files,C++,Cmake,Shared Libraries,Header Files,我正在制作一个自定义库，希望可以为用户安装。但是，当我尝试在cmake可执行文件中使用我自己的库时，我得到一个生成错误，表示找不到库头库CMakeLists.txt： cmake_minimum_required(VERSION 3.16) project(mylibrary) include(GNUInstallDirs) set(CMAKE_CXX_STANDARD 14) # Register a library - This will created lib[xxx].so ad

我正在制作一个自定义库，希望可以为用户安装。但是，当我尝试在cmake可执行文件中使用我自己的库时，我得到一个生成错误，表示找不到库头

库
CMakeLists.txt
：

cmake_minimum_required(VERSION 3.16)
project(mylibrary)

include(GNUInstallDirs)

set(CMAKE_CXX_STANDARD 14)

# Register a library - This will created lib[xxx].so
add_library(mylibrary SHARED src/library.cpp)

configure_file(mylibrary.pc.in mylibrary.pc @ONLY)

# List the /include directory
target_include_directories(mylibrary PUBLIC
        $<BUILD_INTERFACE:${CMAKE_CURRENT_SOURCE_DIR}/include>  
        $<INSTALL_INTERFACE:include>)

install(TARGETS mylibrary
        EXPORT mylibraryConfig
        LIBRARY DESTINATION ${CMAKE_INSTALL_LIBDIR})

export(TARGETS mylibrary
        FILE "${CMAKE_CURRENT_BINARY_DIR}/mylibraryConfig.cmake")

install(EXPORT mylibraryConfig
        DESTINATION "${CMAKE_INSTALL_LIBDIR}/mylibrary/cmake"
        NAMESPACE mylibraryConfig::)

install(
        DIRECTORY include
        DESTINATION ${CMAKE_INSTALL_PREFIX})

install(FILES ${CMAKE_BINARY_DIR}/mylibrary.pc
    DESTINATION ${CMAKE_INSTALL_DATAROOTDIR}/pkgconfig)

cmake_minimum_required(VERSION 3.16)
project(myexecutable)

set(CMAKE_CXX_STANDARD 14)

find_package(mylibrary REQUIRED)

add_executable(myexecutable src/main.cpp)

target_link_libraries(myexecutable PUBLIC mylibrary)

target_include_directories(myexecutable PUBLIC ${CMAKE_CURRENT_SOURCE_DIR}/include)

可执行文件
CMakeLists.txt
：

cmake_minimum_required(VERSION 3.16)
project(mylibrary)

include(GNUInstallDirs)

set(CMAKE_CXX_STANDARD 14)

# Register a library - This will created lib[xxx].so
add_library(mylibrary SHARED src/library.cpp)

configure_file(mylibrary.pc.in mylibrary.pc @ONLY)

# List the /include directory
target_include_directories(mylibrary PUBLIC
        $<BUILD_INTERFACE:${CMAKE_CURRENT_SOURCE_DIR}/include>  
        $<INSTALL_INTERFACE:include>)

install(TARGETS mylibrary
        EXPORT mylibraryConfig
        LIBRARY DESTINATION ${CMAKE_INSTALL_LIBDIR})

export(TARGETS mylibrary
        FILE "${CMAKE_CURRENT_BINARY_DIR}/mylibraryConfig.cmake")

install(EXPORT mylibraryConfig
        DESTINATION "${CMAKE_INSTALL_LIBDIR}/mylibrary/cmake"
        NAMESPACE mylibraryConfig::)

install(
        DIRECTORY include
        DESTINATION ${CMAKE_INSTALL_PREFIX})

install(FILES ${CMAKE_BINARY_DIR}/mylibrary.pc
    DESTINATION ${CMAKE_INSTALL_DATAROOTDIR}/pkgconfig)

cmake_minimum_required(VERSION 3.16)
project(myexecutable)

set(CMAKE_CXX_STANDARD 14)

find_package(mylibrary REQUIRED)

add_executable(myexecutable src/main.cpp)

target_link_libraries(myexecutable PUBLIC mylibrary)

target_include_directories(myexecutable PUBLIC ${CMAKE_CURRENT_SOURCE_DIR}/include)

我可以为该项目准备cmake：

$ cmake .. -DCMAKE_PREFIX_PATH=~/libraries/local # Use non-standard location

然而，构建它失败了：

$ make
fatal error: mylibrary/library.h: No such file or directory
    2 | #include <mylibrary/library.h>

$make
致命错误：mylibrary/library.h:没有这样的文件或目录
2 |#包括

据我所知，库的位置（二进制文件和头文件）嵌入在已安装的包中。通过

find_package（）

检索到的信息，为什么在这里不起作用

类似问题：

cmake_minimum_required(VERSION 3.16)
project(mylibrary)

include(GNUInstallDirs)

set(CMAKE_CXX_STANDARD 14)

# Register a library - This will created lib[xxx].so
add_library(mylibrary SHARED src/library.cpp)

configure_file(mylibrary.pc.in mylibrary.pc @ONLY)

# List the /include directory
target_include_directories(mylibrary PUBLIC
        $<BUILD_INTERFACE:${CMAKE_CURRENT_SOURCE_DIR}/include>  
        $<INSTALL_INTERFACE:include>)

install(TARGETS mylibrary
        EXPORT mylibraryConfig
        LIBRARY DESTINATION ${CMAKE_INSTALL_LIBDIR})

export(TARGETS mylibrary
        FILE "${CMAKE_CURRENT_BINARY_DIR}/mylibraryConfig.cmake")

install(EXPORT mylibraryConfig
        DESTINATION "${CMAKE_INSTALL_LIBDIR}/mylibrary/cmake"
        NAMESPACE mylibraryConfig::)

install(
        DIRECTORY include
        DESTINATION ${CMAKE_INSTALL_PREFIX})

install(FILES ${CMAKE_BINARY_DIR}/mylibrary.pc
    DESTINATION ${CMAKE_INSTALL_DATAROOTDIR}/pkgconfig)

cmake_minimum_required(VERSION 3.16)
project(myexecutable)

set(CMAKE_CXX_STANDARD 14)

find_package(mylibrary REQUIRED)

add_executable(myexecutable src/main.cpp)

target_link_libraries(myexecutable PUBLIC mylibrary)

target_include_directories(myexecutable PUBLIC ${CMAKE_CURRENT_SOURCE_DIR}/include)

我的库cmake主要基于：
同样的问题，但我已经在使用
```
target\u include\u目录
```
：

如果配置文件中有共享库目标的名称空间，则在使用

查找包时，需要在下游包中引用其全名，即需要使用
target_link_libraries(myexecutable PUBLIC mylibraryConfig::mylibrary)

或者，通过替换从安装中删除命名空间
install(EXPORT mylibraryConfig
        DESTINATION "${CMAKE_INSTALL_LIBDIR}/mylibrary/cmake"
        NAMESPACE mylibraryConfig::)

…与：
install(EXPORT mylibraryConfig
        DESTINATION "${CMAKE_INSTALL_LIBDIR}/mylibrary/cmake")

据我所知，find_package（）
可能不会成功，甚至不会报告任何关于此的消息：。如果我为程序运行cmake..
（没有DCMAKE_PREFIX_PATH
），我会收到一个整洁的错误，如“找不到包mylibrary”。因此，我倾向于认为这一部分是有效的。当您在配置文件中命名共享库目标时，您需要在使用find\u package
时使用它的全名，即在target\u link\u libraries
命令中使用mylibraryConfig:：mylibrary
。是的，就是这样！我刚刚删除了名称空间
位。如果你把这个作为答案贴出来，我会接受的。或者我自己稍后再发。