1For each toolset that comes with this version of Visual Studio, there are 2variants that are themselves compiled for 32-bit (``x86``) and 364-bit (``x64``) hosts (independent of the architecture they target). 4|VS_TOOLSET_HOST_ARCH_DEFAULT| 5One may explicitly request use of either the 32-bit or 64-bit host tools 6by adding either ``host=x86`` or ``host=x64`` to the toolset specification. 7See the :variable:`CMAKE_GENERATOR_TOOLSET` variable for details. 8