cmake学习（CMakeLists.txt写法）

cmake学习

经典的CMakeLists.txt写法：

cmake_minimum_required(VERSION 3.10)

# specify the C++ standard
set(CMAKE_CXX_STANDARD 11)
set(CMAKE_CXX_STANDARD_REQUIRED True)

# set the project name
project(Tutorial)

# add the executable
add_executable(Tutorial tutorial.cxx)

cmake --build . 即compile/link the project

脚本自动化生成

cd debug
cmake -DCMAKE_BUILD_TYPE=Debug ..
cmake --build .
cd ../release
cmake -DCMAKE_BUILD_TYPE=Release ..
cmake --build .

设置debug的后缀

set(CMAKE_DEBUG_POSTFIX _d)
set_target_properties(Tutorial 
    PROPERTIES 
    DEBUG_POSTFIX ${CMAKE_DEBUG_POSTFIX})

# specify the C++ standard
set(CMAKE_CXX_STANDARD 11)
set(CMAKE_CXX_STANDARD_REQUIRED True)

install(TARGETS ${installable_libs}
        DESTINATION lib
        EXPORT MathFunctionsTargets)
install(FILES MathFunctions.h DESTINATION include)

# define the symbol stating we are using the declspec(dllexport) when
# building on windows
target_compile_definitions(MathFunctions PRIVATE "EXPORTING_MYMATH")

cmake是一个buildsystem

cmake的项目是由target定义的，生成目标有可执行程序和库两种，分别用 add_executable() 和 add_library()

cmake --open .