自用cmakelists.txt
cmake_minimum_required(VERSION 3.16)
# 设置项目名
project(demo)
set(CMAKE_CXX_STANDARD 14)
# 设置C++标准为C++11
set(CMAKE_CXX_FLAGS "-std=c++11")
# 后期可以用多线程加速替代openmp
set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -fopenmp")
set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -fopenmp")
# 添加头文件目录
include_directories(${CMAKE_SOURCE_DIR})
include_directories(${CMAKE_SOURCE_DIR}/include)
include_directories(${CMAKE_SOURCE_DIR}/include/Camera)
include_directories(${CMAKE_SOURCE_DIR}/include/MNN)
include_directories(${CMAKE_SOURCE_DIR}/include/ncnn)
# 查找包
find_package(OpenCV REQUIRED)
include_directories(${OpenCV_INCLUDE_DIRS})
# 添加动态库
# add_library(libmvs SHARED IMPORTED) 表示在CMake项目中添加一个名为 libmvs 的动态库,
# 使用SHARED 关键字指定该库为动态库,
# IMPORTED 关键字告诉CMake该库不是在当前项目中生成的,而是外部已经生成好的库。
add_library(libmvs SHARED IMPORTED)
add_library(libmnn SHARED IMPORTED)
add_library(libncnn SHARED IMPORTED)
add_library(libzbar SHARED IMPORTED)
# 指定链接动态库或静态库
set_target_properties(libmvs PROPERTIES IMPORTED_LOCATION ${CMAKE_SOURCE_DIR}/lib/libMvCameraControl.so)
set_target_properties(libmnn PROPERTIES IMPORTED_LOCATION ${CMAKE_SOURCE_DIR}/lib/libMNN.so)
set_target_properties(libncnn PROPERTIES IMPORTED_LOCATION ${CMAKE_SOURCE_DIR}/lib/libncnn.a)
# 搜索当前目录下的所有.cpp文件
aux_source_directory(${CMAKE_SOURCE_DIR}/src SRC_LIST)
# 生成可执行文件
add_executable(demo main.cpp ${SRC_LIST})
# 设置需要链接的库
target_link_libraries(demo ${OpenCV_LIBS} -lpthread
libmvs
libmnn
libncnn)
预定义变量
PROJECT_SOURCE_DIR: 工程的根目录
PROJECT_BINARY_DIR: 运行 cmake 命令的目录,通常是 ${PROJECT_SOURCE_DIR}/build
PROJECT_NAME: 返回通过 project 命令定义的项目名称
CMAKE_CURRENT_SOURCE_DIR: 当前处理的 CMakeLists.txt 所在的路径
CMAKE_CURRENT_BINARY_DIR: target 编译目录
CMAKE_CURRENT_LIST_DIR: CMakeLists.txt 的完整路径
CMAKE_CURRENT_LIST_LINE: 当前所在的行
CMAKE_MODULE_PATH: 定义自己的 cmake 模块所在的路径,SET(CMAKE_MODULE_PATH ${PROJECT_SOURCE_DIR}/cmake),然后可以用INCLUDE命令来调用自己的模块
EXECUTABLE_OUTPUT_PATH: 重新定义目标二进制可执行文件的存放位置
LIBRARY_OUTPUT_PATH: 重新定义目标链接库文件的存放位置