| For each toolset that comes with this version of Visual Studio, there are | |
| variants that are themselves compiled for 32-bit (``x86``) and | |
| 64-bit (``x64``) hosts (independent of the architecture they target). | |
| |VS_TOOLSET_HOST_ARCH_DEFAULT| | |
| One may explicitly request use of either the 32-bit or 64-bit host tools | |
| by adding either ``host=x86`` or ``host=x64`` to the toolset specification. | |
| See the :variable:`CMAKE_GENERATOR_TOOLSET` variable for details. |