1CMAKE_HOST_SYSTEM
2-----------------
3
4Composite Name of OS CMake is being run on.
5
6This variable is the composite of :variable:`CMAKE_HOST_SYSTEM_NAME` and
7:variable:`CMAKE_HOST_SYSTEM_VERSION`, e.g.
8``${CMAKE_HOST_SYSTEM_NAME}-${CMAKE_HOST_SYSTEM_VERSION}``.  If
9:variable:`CMAKE_HOST_SYSTEM_VERSION` is not set, then this variable is
10the same as :variable:`CMAKE_HOST_SYSTEM_NAME`.
11