| CMAKE_VS_PLATFORM_TOOLSET_HOST_ARCHITECTURE | |
| ------------------------------------------- | |
| Visual Studio preferred tool architecture. | |
| The :ref:`Visual Studio Generators` for VS 2013 and above support using | |
| either the 32-bit or 64-bit host toolchains by specifying a ``host=x86`` | |
| or ``host=x64`` value in the :variable:`CMAKE_GENERATOR_TOOLSET` option. | |
| CMake provides the selected toolchain architecture preference in this | |
| variable (``x86``, ``x64``, or empty). |