The code for this recipe is available at https://github.com/dev-cafe/cmake-cookbook/tree/v1.0/chapter-12/recipe-01, and includes a C++ example. The recipe is valid with CMake version 3.5 (and higher) and has been tested on GNU/Linux, macOS, and Windows.
Doxygen (http://www.doxygen.nl) is a very popular source code documentation tool. You can add documentation tags as comments in your code. Running Doxygen will extract these comments and create the documentation in a format defined in the Doxyfile configuration file. Doxygen can output HTML, XML, and even LaTeX or PDF. This recipe will show you how to use CMake to build your Doxygen documentation.
