c++ - 如何在CMake中分离头文件和源文件？

Question

我的项目结构如下:

--root: main.cpp CMakeLists.txt 

    --src: function.cpp CMakeLists.txt 

    --include: function.h

---

主要.cpp:

#include <iostream>
#include "function.h"
using namespace std;

int main(int argc, char *argv[])
{
    //call module in function.hpp
    return 0;
}

根目录下的CMakeLists.txt:

 project(t1)
 cmake_minimum_required(VERSION 2.8)
 add_subdirectory(src)               
 file(GLOB_RECURSE SOURCES
     include/function.h
     src/function.cpp)            
 add_executable(${PROJECT_NAME} ${SOURCES})

src目录下的CmakeLists.txt:

include_directories(${PROJECT_SOURCE_DIR}/include)

如何在根目录和src目录下编写CMakelists实现功能的分离实现？更进一步，如何在 main 中调用它们。 CMake not finding proper header/include files in include_directories 中可能的解决方案.但是还是不符合我的情况。

Answer 1

在根目录中:

project(t1)
cmake_minimum_required(VERSION 2.8)
include_directories(include)
add_subdirectory(src)               

在源代码中:

set(TARGET target_name)
add_executable(${TARGET} main.cpp function.cpp)