Merge topic 'LINUX-host'

caffb15d09 LINUX: Set CMAKE_HOST_LINUX variable when running on a Linux host

Acked-by: Kitware Robot <kwrobot@kitware.com>
Acked-by: buildbot <buildbot@kitware.com>
Acked-by: hinell <al.neodim@gmail.com>
Merge-request: !7661