cmake生成so包并调用(C++project，build,cmake)_cmake生成so文件并使用-CSDN博客

本文链接：https://blog.csdn.net/Darlingqiang/article/details/121991453

本文介绍了一个使用CMake进行项目构建的实际案例，包括了如何设置编译选项、添加头文件路径、源文件及链接库等关键步骤，并展示了不同模块间的依赖管理和编译配置。

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1. 目录结构

2 . downloads

2.1

build
module
process
CMakeLists.txt
====>


cmake_minimum_required(VERSION 3.5)

if(CMAKE_COMPILER_IS_GNUCC)
    message("COMPILER IS GNUCC")
        ADD_DEFINITIONS ( -std=c++11 )
endif(CMAKE_COMPILER_IS_GNUCC)

SET(CMAKE_CXX_FLAGS_DEBUG "$ENV{CXXFLAGS} -O0 -Wall -ggdb3")
SET(CMAKE_CXX_FLAGS_RELEASE "$ENV{CXXFLAGS} -O3 -Wall")

ADD_SUBDIRECTORY(${CMAKE_SOURCE_DIR}/module)
ADD_SUBDIRECTORY(${CMAKE_SOURCE_DIR}/process)

2. 2 module

include/utikls.h
src/utils.cpp
CMakeLists.txt
====>


cmake_minimum_required(VERSION 3.5)

project(module)

if(CMAKE_COMPILER_IS_GNUCC)
    message("COMPILER IS GNUCC")
        ADD_DEFINITIONS ( -std=c++11 )
endif(CMAKE_COMPILER_IS_GNUCC)

SET(CMAKE_CXX_FLAGS_DEBUG "$ENV{CXXFLAGS} -O0 -Wall -ggdb3")
SET(CMAKE_CXX_FLAGS_RELEASE "$ENV{CXXFLAGS} -O3 -Wall")
# 3. opencv
#link_directories("/usr/local/lib")
#include_directories("/usr/local/include/opencv4")

# 5. 添加头文件路径
include_directories(${CMAKE_CURRENT_SOURCE_DIR}/include/utils)
# 6. 添加源文件
FILE(GLOB_RECURSE SOURCE_FILES ${CMAKE_CURRENT_SOURCE_DIR}/src/*.cpp)
message(${CMAKE_CURRENT_SOURCE_DIR})
message(${SOURCE_FILES})
# 7. 添加链接库
#LINK_LIBRARIES(opencv_core opencv_highgui)

# 9. 设置环境变量，编译用到的源文件全部都要放到这里，否则编译能够通过，
#但是执行的时候会出现各种问题，比如"symbol lookup error xxxxx , undefined symbol"
SET(ALL_SRCS ${SOURCE_FILES})
message(${ALL_SRCS})

# 生成so包
ADD_LIBRARY(${PROJECT_NAME} SHARED ${ALL_SRCS})

# 10.add executable file，添加要编译的可执行文件
#ADD_EXECUTABLE(${PROJECT_NAME} ${ALL_SRCS})

2. 3 process

include
src/main.cpp
CMakeLists.txt
====>

cmake_minimum_required(VERSION 3.5)

project(hello)

if(CMAKE_COMPILER_IS_GNUCC)
    message("COMPILER IS GNUCC")
        ADD_DEFINITIONS ( -std=c++11 )
endif(CMAKE_COMPILER_IS_GNUCC)

#SET(CMAKE_CXX_FLAGS_DEBUG "$ENV{CXXFLAGS} -O0 -Wall -ggdb3")
SET(CMAKE_CXX_FLAGS_RELEASE "$ENV{CXXFLAGS} -O3 -Wall")

# 5. 添加头文件路径
include_directories(${CMAKE_CURRENT_SOURCE_DIR}/include)
include_directories(${CMAKE_SOURCE_DIR}/module/include/utils)
# 6. 添加源文件
FILE(GLOB_RECURSE SOURCE_FILES ${CMAKE_CURRENT_SOURCE_DIR}/src/*.cpp)
message(${CMAKE_CURRENT_SOURCE_DIR})
message(${SOURCE_FILES})
# 7. 添加链接库

LINK_DIRECTORIES(${CMAKE_BINARY_DIR}/module)
LINK_LIBRARIES(module)


# 9. 设置环境变量，编译用到的源文件全部都要放到这里，否则编译能够通过，
#但是执行的时候会出现各种问题，比如"symbol lookup error xxxxx , undefined symbol"
SET(ALL_SRCS ${SOURCE_FILES})
message(${ALL_SRCS})

# 10.add executable file，添加要编译的可执行文件
ADD_EXECUTABLE(${PROJECT_NAME} ${ALL_SRCS})

# 不可以
#TARGET_LINK_LIBRARIES(${CMAKE_BINARY_DIR}/module/libmodule.so)