Book Image

CMake Cookbook

By : Radovan Bast, Roberto Di Remigio
Book Image

CMake Cookbook

By: Radovan Bast, Roberto Di Remigio

Overview of this book

CMake is cross-platform, open-source software for managing the build process in a portable fashion. This book features a collection of recipes and building blocks with tips and techniques for working with CMake, CTest, CPack, and CDash. CMake Cookbook includes real-world examples in the form of recipes that cover different ways to structure, configure, build, and test small- to large-scale code projects. You will learn to use CMake's command-line tools and master modern CMake practices for configuring, building, and testing binaries and libraries. With this book, you will be able to work with external libraries and structure your own projects in a modular and reusable way. You will be well-equipped to generate native build scripts for Linux, MacOS, and Windows, simplify and refactor projects using CMake, and port projects to CMake.
Table of Contents (18 chapters)

Running a custom command at build time: I. Using add_custom_command

The code for this recipe is available at 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.

Build targets for your projects might depend on the results of commands that can only be executed at build time, after the build system generation has been completed. CMake offers three options to execute custom commands at build time:

  1. Using add_custom_command to generate output files to be compiled within a target.
  2. Using add_custom_target to execute commands with no output.
  3. Using add_custom_command to execute commands with no output, before or after a target has been built.

These three options enforce specific semantics and are not interchangeable. The next three...