使用CMake和C+处理共享库依赖关系+；我有一个C++项目，它使用共享库，其中有些库有自己的依赖关系。但是，我被迫在main.cpp文件中包含共享库依赖项的头文件。我假设这是我如何组织我的项目的一个问题，但我不确定_C++_Cmake_Compiler Errors

使用CMake和C+处理共享库依赖关系+；我有一个C++项目，它使用共享库，其中有些库有自己的依赖关系。但是，我被迫在main.cpp文件中包含共享库依赖项的头文件。我假设这是我如何组织我的项目的一个问题，但我不确定

c++ cmake compiler-errors

使用CMake和C+处理共享库依赖关系+；我有一个C++项目，它使用共享库，其中有些库有自己的依赖关系。但是，我被迫在main.cpp文件中包含共享库依赖项的头文件。我假设这是我如何组织我的项目的一个问题，但我不确定,c++,cmake,compiler-errors,C++,Cmake,Compiler Errors,项目结构： - myproject |-> foo1 |-> include |-> foo1_stuff.hpp |-> src |-> main.cpp |-> build |-> CMakeLists.txt |-> foo2 |-> include |-> foo2_stuff.hpp |-> src |-> main.cpp |-> build

项目结构：

- myproject
|-> foo1
  |-> include
    |-> foo1_stuff.hpp
  |-> src
    |-> main.cpp
  |-> build
  |-> CMakeLists.txt
|-> foo2
  |-> include
    |-> foo2_stuff.hpp
  |-> src
    |-> main.cpp
  |-> build
  |-> CMakeLists.txt
|-> lib
  |-> bar
    |-> include
      |-> bar.hpp
    |-> src
      |-> bar.cpp
  |-> bar_tool
    |-> include
      |-> bar_tool.hpp
    |-> src
      |-> bar_tool.cpp
  |-> CmakeLists.txt

foo1的main.cpp：

#include <bar_tool.hpp>

int main()
{
    bar_tool tool;
    tool.doStuff();

    return 0;
}

Foo1 CMakeLists：

cmake_minimum_required(VERSION 3.10.2)
project(foo)

set(PROJECT_ROOT ~/myproject/)
set(
    CMAKE_RUNTIME_OUTPUT_DIRECTORY ${PROJECT_ROOT}/bin/
)

link_directories(
    /usr/local/lib
    /usr/lib
    ${PROJECT_ROOT}/lib
)

include_directories(
    include
    ${PROJECT_ROOT}/lib/bar_tool/include
)

file(GLOB SOURCES "src/*.cpp")

add_executable(${PROJECT_NAME} ${SOURCES})
target_link_libraries(
    ${PROJECT_NAME}
    bar_tool
)

cmake_minimum_required(VERSION 3.10.2)
project(myproject)

set(PROJECT_ROOT ~/myproject/)
set(
    CMAKE_LIBRARY_OUTPUT_DIRECTORY
    ${PROJECT_ROOT}/lib/
)

link_directories(
    /usr/local/lib
    /usr/lib
    ${PROJECT_ROOT}/lib
)

include_directories(
    include
    ${PROJECT_ROOT}/lib/bar/include
    ${PROJECT_ROOT}/lib/bar_tool/include
)

# bar library
set(LIB_NAME "bar")
file(GLOB LIB_SRC "${LIB_NAME}/src/*.cpp")
add_library(${LIB_NAME} SHARED ${LIB_SRC})

# bar_tool library
set(LIB_NAME "bar_tool")
file(GLOB LIB_SRC "${LIB_NAME}/src/*.cpp")
add_library(${LIB_NAME} SHARED ${LIB_SRC})
target_link_libraries(
    ${LIB_NAME}
        bar
)

cmake_minimum_required(VERSION 3.10.2)
project(myproject)

set(PROJECT_ROOT ~/myproject/)
set(
    CMAKE_LIBRARY_OUTPUT_DIRECTORY
    ${PROJECT_ROOT}/lib/
)

# bar library
set(LIB_NAME "bar")
file(GLOB LIB_SRC "${LIB_NAME}/src/*.cpp")
add_library(${LIB_NAME} SHARED ${LIB_SRC})
target_include_directories(
    ${LIB_NAME} PUBLIC
    ${PROJECT_ROOT}/lib/bar/include
)

# bar_tool library
set(LIB_NAME "bar_tool")
file(GLOB LIB_SRC "${LIB_NAME}/src/*.cpp")
add_library(${LIB_NAME} SHARED ${LIB_SRC})
target_include_directories(
    ${LIB_NAME} PUBLIC
    ${PROJECT_ROOT}/lib/bar_tool/include
)
target_link_libraries(
    ${LIB_NAME} PUBLIC
    bar
)

cmake_minimum_required(VERSION 3.10.2)
project(foo)

set(PROJECT_ROOT /home/mrd/Development/compile_test)
set(
    CMAKE_RUNTIME_OUTPUT_DIRECTORY ${PROJECT_ROOT}/bin/
)

add_subdirectory(${PROJECT_ROOT}/lib/ bin)

file(GLOB SOURCES "src/*.cpp")

add_executable(${PROJECT_NAME} ${SOURCES})
target_link_libraries(
    ${PROJECT_NAME}
    bar_tool
)

共享库CMakeLists：

cmake_minimum_required(VERSION 3.10.2)
project(foo)

set(PROJECT_ROOT ~/myproject/)
set(
    CMAKE_RUNTIME_OUTPUT_DIRECTORY ${PROJECT_ROOT}/bin/
)

link_directories(
    /usr/local/lib
    /usr/lib
    ${PROJECT_ROOT}/lib
)

include_directories(
    include
    ${PROJECT_ROOT}/lib/bar_tool/include
)

file(GLOB SOURCES "src/*.cpp")

add_executable(${PROJECT_NAME} ${SOURCES})
target_link_libraries(
    ${PROJECT_NAME}
    bar_tool
)

cmake_minimum_required(VERSION 3.10.2)
project(myproject)

set(PROJECT_ROOT ~/myproject/)
set(
    CMAKE_LIBRARY_OUTPUT_DIRECTORY
    ${PROJECT_ROOT}/lib/
)

link_directories(
    /usr/local/lib
    /usr/lib
    ${PROJECT_ROOT}/lib
)

include_directories(
    include
    ${PROJECT_ROOT}/lib/bar/include
    ${PROJECT_ROOT}/lib/bar_tool/include
)

# bar library
set(LIB_NAME "bar")
file(GLOB LIB_SRC "${LIB_NAME}/src/*.cpp")
add_library(${LIB_NAME} SHARED ${LIB_SRC})

# bar_tool library
set(LIB_NAME "bar_tool")
file(GLOB LIB_SRC "${LIB_NAME}/src/*.cpp")
add_library(${LIB_NAME} SHARED ${LIB_SRC})
target_link_libraries(
    ${LIB_NAME}
        bar
)

cmake_minimum_required(VERSION 3.10.2)
project(myproject)

set(PROJECT_ROOT ~/myproject/)
set(
    CMAKE_LIBRARY_OUTPUT_DIRECTORY
    ${PROJECT_ROOT}/lib/
)

# bar library
set(LIB_NAME "bar")
file(GLOB LIB_SRC "${LIB_NAME}/src/*.cpp")
add_library(${LIB_NAME} SHARED ${LIB_SRC})
target_include_directories(
    ${LIB_NAME} PUBLIC
    ${PROJECT_ROOT}/lib/bar/include
)

# bar_tool library
set(LIB_NAME "bar_tool")
file(GLOB LIB_SRC "${LIB_NAME}/src/*.cpp")
add_library(${LIB_NAME} SHARED ${LIB_SRC})
target_include_directories(
    ${LIB_NAME} PUBLIC
    ${PROJECT_ROOT}/lib/bar_tool/include
)
target_link_libraries(
    ${LIB_NAME} PUBLIC
    bar
)

cmake_minimum_required(VERSION 3.10.2)
project(foo)

set(PROJECT_ROOT /home/mrd/Development/compile_test)
set(
    CMAKE_RUNTIME_OUTPUT_DIRECTORY ${PROJECT_ROOT}/bin/
)

add_subdirectory(${PROJECT_ROOT}/lib/ bin)

file(GLOB SOURCES "src/*.cpp")

add_executable(${PROJECT_NAME} ${SOURCES})
target_link_libraries(
    ${PROJECT_NAME}
    bar_tool
)

我希望使用编译的bar_工具共享库（

libbar_工具.so

）不需要在foo1的CMakeLists的

include_目录

部分包含

bar.hpp

）。但是，如果不这样做，则会出现以下错误：

In file included from /home/mrd/Development/compile_test/foo/src/main.cpp:1:0:
/home/mrd/Development/compile_test/lib/bar_tool/include/bar_tool.hpp:1:10: fatal error: bar.hpp: No such file or directory
 #include <bar.hpp>
          ^~~~~~~~~
compilation terminated.

不确定这是否有任何影响，但我也改变了这一点：

更新了Foo1 CmakeList：

cmake_minimum_required(VERSION 3.10.2)
project(foo)

set(PROJECT_ROOT ~/myproject/)
set(
    CMAKE_RUNTIME_OUTPUT_DIRECTORY ${PROJECT_ROOT}/bin/
)

link_directories(
    /usr/local/lib
    /usr/lib
    ${PROJECT_ROOT}/lib
)

include_directories(
    include
    ${PROJECT_ROOT}/lib/bar_tool/include
)

file(GLOB SOURCES "src/*.cpp")

add_executable(${PROJECT_NAME} ${SOURCES})
target_link_libraries(
    ${PROJECT_NAME}
    bar_tool
)

cmake_minimum_required(VERSION 3.10.2)
project(myproject)

set(PROJECT_ROOT ~/myproject/)
set(
    CMAKE_LIBRARY_OUTPUT_DIRECTORY
    ${PROJECT_ROOT}/lib/
)

link_directories(
    /usr/local/lib
    /usr/lib
    ${PROJECT_ROOT}/lib
)

include_directories(
    include
    ${PROJECT_ROOT}/lib/bar/include
    ${PROJECT_ROOT}/lib/bar_tool/include
)

# bar library
set(LIB_NAME "bar")
file(GLOB LIB_SRC "${LIB_NAME}/src/*.cpp")
add_library(${LIB_NAME} SHARED ${LIB_SRC})

# bar_tool library
set(LIB_NAME "bar_tool")
file(GLOB LIB_SRC "${LIB_NAME}/src/*.cpp")
add_library(${LIB_NAME} SHARED ${LIB_SRC})
target_link_libraries(
    ${LIB_NAME}
        bar
)

cmake_minimum_required(VERSION 3.10.2)
project(myproject)

set(PROJECT_ROOT ~/myproject/)
set(
    CMAKE_LIBRARY_OUTPUT_DIRECTORY
    ${PROJECT_ROOT}/lib/
)

# bar library
set(LIB_NAME "bar")
file(GLOB LIB_SRC "${LIB_NAME}/src/*.cpp")
add_library(${LIB_NAME} SHARED ${LIB_SRC})
target_include_directories(
    ${LIB_NAME} PUBLIC
    ${PROJECT_ROOT}/lib/bar/include
)

# bar_tool library
set(LIB_NAME "bar_tool")
file(GLOB LIB_SRC "${LIB_NAME}/src/*.cpp")
add_library(${LIB_NAME} SHARED ${LIB_SRC})
target_include_directories(
    ${LIB_NAME} PUBLIC
    ${PROJECT_ROOT}/lib/bar_tool/include
)
target_link_libraries(
    ${LIB_NAME} PUBLIC
    bar
)

cmake_minimum_required(VERSION 3.10.2)
project(foo)

set(PROJECT_ROOT /home/mrd/Development/compile_test)
set(
    CMAKE_RUNTIME_OUTPUT_DIRECTORY ${PROJECT_ROOT}/bin/
)

add_subdirectory(${PROJECT_ROOT}/lib/ bin)

file(GLOB SOURCES "src/*.cpp")

add_executable(${PROJECT_NAME} ${SOURCES})
target_link_libraries(
    ${PROJECT_NAME}
    bar_tool
)

欢迎提出任何其他建议

由于您拥有已编译的库，因此不需要添加源文件的路径。所有函数调用、外部变量访问等都将链接到此预编译库

然而，当您包含头文件时，情况并非如此。 Make在编译之前创建一个依赖项列表，试图在其中定位所有的头。

因此，必须提供直接或间接包含的所有标题的路径。

在您的共享库<代码> cMaKelist.txt < /Cord>文件中，考虑添加关键字，以确保传递依赖关系（即<代码> bar <代码>库）可以传播到最终目标。此外，现代CMake鼓励使用而不是

包含目录（）

。同样，您也应该在此处添加

PUBLIC

关键字：

target_include_directories(bar PUBLIC
    ${PROJECT_ROOT}/lib/bar/include
)
target_include_directories(bar_tool PUBLIC
    ${PROJECT_ROOT}/lib/bar_tool/include
)

target_link_libraries(
    ${LIB_NAME} PUBLIC
        bar
)

您能否解释一下，为了在不包含头文件的情况下使用预编译库，需要更改哪些内容？我添加了

PUBLIC

，如图所示，但这并没有解决问题problem@user3489620更新了我的答案。希望这有帮助！是的，谢谢！我更新了帖子以显示这些变化。