一个简单的例子

这是一个简单、完整并且合理的 CMakeLists.txt 的例子。对于这个程序，我们有一个带有头文件与源文件的库文件（ MyLibExample ），以及一个带有源文件的应用程序（ MyExample ）。

# Almost all CMake files should start with this# You should always specify a range with the newest# and oldest tested versions of CMake. This will ensure# you pick up the best policies.cmake_minimum_required(VERSION 3.1...3.21)# This is your project statement. You should always list languages;# Listing the version is nice here since it sets lots of useful variablesproject(  ModernCMakeExample  VERSION 1.0  LANGUAGES CXX)# If you set any CMAKE_ variables, that can go here.# (But usually don't do this, except maybe for C++ standard)# Find packages go here.# You should usually split this into folders, but this is a simple example# This is a "default" library, and will match the *** variable setting.# Other common choices are STATIC, SHARED, and MODULE# Including header files here helps IDEs but is not required.# Output libname matches target name, with the usual extensions on your systemadd_library(MyLibExample simple_lib.cpp simple_lib.hpp)# Link each target with other targets or add options, etc.# Adding something we can run - Output name matches target nameadd_executable(MyExample simple_example.cpp)# Make sure you link your targets with this command. It can also link libraries and# even flags, so linking a target that does not exist will not give a configure-time error.target_link_libraries(MyExample PRIVATE MyLibExample)

完整的例子可以在此查看 examples folder.

一个更大，并且包含多文件的例子可在此查看 also available.