cmake 没有包的简单方法

示例

构建可执行文件(编辑器)并将其链接到库的示例(突出显示)。项目结构简单明了,每个子项目都需要一个主CMakeLists和一个目录:

CMakeLists.txt
editor/
    CMakeLists.txt
    src/
        editor.cpp
highlight/
    CMakeLists.txt
    include/
        highlight.h
    src/
        highlight.cpp

母版CMakeLists.txt包含全局定义,并add_subdirectory针对每个子项目进行调用:

cmake_minimum_required(VERSION 3.0)
project(Example)

add_subdirectory(highlight)
add_subdirectory(editor)

库的CMakeLists.txt分配源并包括目录。通过使用target_include_directories()而不是include_directories()include,目录将传播到库用户:

cmake_minimum_required(VERSION 3.0)
project(highlight)

add_library(${PROJECT_NAME} src/highlight.cpp)
target_include_directories(${PROJECT_NAME} PUBLIC include)

该应用程序的CMakeLists.txt分配源并链接突出显示库。指向hightlighter的二进制文件及其包含的路径由cmake自动处理:

cmake_minimum_required(VERSION 3.0)
project(editor)

add_executable(${PROJECT_NAME} src/editor.cpp)
target_link_libraries(${PROJECT_NAME} PUBLIC highlight)