CMake is a widely-used software build system designed primarily for C++ development, boasting over 2 million downloads monthly. It provides a robust framework for managing the software build process across various platforms, from mobile to high-performance systems. CMake simplifies complex build configurations with a single set of input files, enabling developers to streamline their workflow effectively. The tool supports accurate dependency tracking and ensures minimal rebuilds by only recompiling changed code.

In addition to its core capabilities, CMake offers out-of-source builds, allowing for multiple build trees from a single source tree. Its target-centric approach organizes builds around specific targets, such as executables and libraries, while managing dependencies efficiently. The system introspection feature captures build environments via a cache file, which includes system variables, paths, and build flags. CMake also provides user-friendly GUIs for cache file editing, enhancing usability and flexibility.