The code for this recipe is available at https://github.com/dev-cafe/cmake-cookbook/tree/v1.0/chapter-07/recipe-08 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 this recipe, we will discuss an alternative approach to the previous recipe and assemble the different CMakeLists.txt files without using add_subdirectory, but using module includes. This approach is inspired by https://crascit.com/2016/01/31/enhanced-source-file-handling-with-target_sources/ and allows us to use target_link_libraries to link to targets defined outside of the current directory.
