The traditional Autotools become essentials in any Free and Open Source Software (FOSS) project with a compiled language base and a multiplatform attitude, but the difficulty to comprehend architecture of Autotools and the lack of many features make it a poor maintainable choice for projects like PHP that want to compile in not FOOS platforms. CMake is a new and exciting alternative to Autotools that provided many interesting feature for a big project like php (modular config, simple syntax, testing framework, easy manages of libraries, Windows uniformity, and so on). That's why it's a good option to migrate to CMake and do the developer's life easier and more productive.