科技前沿 • 2025-05-06 23:23 • 阅读 50

大家好，我是讯享网，很高兴认识大家。

前言

很多大工程由不同动态库和程序构成，并表现为多级目录和子工程的样式。

一，目录结构

├── CMakeLists.txt  ——————–>[1]
├── subbinary
│           ├── CMakeLists.txt———–>[2]
│           └── main.cpp
├── sublibrary1
│           ├── CMakeLists.txt————>[3]
│           ├── include
│           │          └── sublib1
│           │                       └── sublib1.h
│           └── src
│                    └── sublib1.cpp
└── sublibrary2
              ├── CMakeLists.txt————>[4]
              └── include
                      └── sublib2
                              └── sublib2.h

* link:CMakeLists.txt[] - Top level CMakeLists.txt
* link:subbinary/CMakeLists.txt[] - to make the executable
* link:subbinary/main.cpp[] - source for the executable
* link:sublibrary1/CMakeLists.txt[] - to make a static library
* link:sublibrary1/include/sublib1/sublib1.h[]
* link:sublibrary1/src/sublib2.cpp[]
* link:sublibrary2/CMakeLists.txt[] - to setup header only library
* link:sublibrary2/include/sublib2/sublib2.h[]

二，cmake脚本

├── CMakeLists.txt  ——————–>[1]

cmake_minimum_required (VERSION 3.5)

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project(subprojects)

# 添加子目录
add_subdirectory(sublibrary1)
add_subdirectory(sublibrary2)
add_subdirectory(subbinary)

├── CMakeLists.txt———–>[2]

project(subbinary)

# 创建可执行程序
add_executable(\({PROJECT_NAME} main.cpp) #  使用别名 sub::lib1 链接subproject1下的静态库  # 使用别名 sub::lib2 链接subproject2下的库文件 target_link_libraries(\){PROJECT_NAME}
sub::lib1
sub::lib2
)

├── CMakeLists.txt————>[3]

project (sublibrary1)

# 添加工程源文件到库，设置库别名

add_library(\({PROJECT_NAME} src/sublib1.cpp) add_library(sub::lib1 ALIAS \){PROJECT_NAME})

# 包含相关的头文件

target_include_directories( \({PROJECT_NAME} PUBLIC \){PROJECT_SOURCE_DIR}/include
)

├── CMakeLists.txt————>[4]

project (sublibrary2)

add_library(\({PROJECT_NAME} INTERFACE) add_library(sub::lib2 ALIAS \){PROJECT_NAME})

target_include_directories(\({PROJECT_NAME} INTERFACE \){PROJECT_SOURCE_DIR}/include
)

cmake多级目录（cmake 多目录）

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