The code for this recipe is available at https://github.com/dev-cafe/cmake-cookbook/tree/v1.0/chapter-07/recipe-07 and has a C++ example. The recipe is valid with CMake version 3.5 (and higher) and has been tested on GNU/Linux, macOS, and Windows.
In the remaining recipes of this chapter, we will discuss strategies to structure projects and limit the scope of variables and side effects with the goal to lower code complexity and simplify the maintenance of the project. In this recipe, we will split a project into several CMakeLists.txt files with limited scope, which will be processed using the add_subdirectory command.
