Meson has a nice feature for dependencies called "Wrap
downloads dependency source-code and builds it using Meson. This way, it
becomes easier to assume library support for some dependencies such as zlib,
libjpeg, libcheck and etc. natively on some platforms such as Windows.
If the dependency is found, then the build-system will get things from it. It
it is not found, then the subproject will be used.
This is being used to help with T8760.