The CMake format generates CMakeLists.txt and CMakePresets.json files for building Rice C++ bindings.
Rice supports building extensions with either extconf.rb or CMake. While extconf.rb works for simple bindings, CMake is vastly superior for anything more complex — it provides better cross-platform support, dependency management, and build configuration.
Important: CMake generation must run after Rice generation because it scans the output directory for *-rb.cpp files. If no Rice output exists, the generated CMake source lists will be empty.
See Getting Started for a step-by-step guide.
See Output for details on the generated files.
See Filtering for how to exclude files from the generated CMake build.