Meson has a selection of modules to make common requirements easy to use. Modules can be thought of like the standard library of a programming language. Currently Meson provides the following modules. * [Gnome](Gnome-module.md) * [i18n](i18n-module.md) * [Qt4](Qt4-module.md) * [Qt5](Qt5-module.md) * [Pkgconfig](Pkgconfig-module.md) * [Python3](Python-3-module.md) * [RPM](RPM-module.md) * [Windows](Windows-module.md) In addition there are unstable modules. These are meant for testing new functionality but note that they do *not* provide a stable API. It can change in arbitrary ways between releases. The modules might also be removed without warning in future releases. * [SIMD](Simd-module.md)