CMake >= |disallowed_version| prefer that this command never be called. The ``OLD`` behavior for this policy is to allow the command to be called. The ``NEW`` behavior for this policy is to issue a ``FATAL_ERROR`` when the command is called. This policy was introduced in CMake version |disallowed_version|. CMake version |release| warns when the policy is not set and uses ``OLD`` behavior. Use the :command:`cmake_policy` command to set it to ``OLD`` or ``NEW`` explicitly.