CMP0085 ------- .. versionadded:: 3.14 ``$`` handles empty list items. In CMake 3.13 and lower, the ``$`` generator expression always returned ``0`` if the first argument was empty, even if the list contained an empty item. This behavior is inconsistent with the ``IN_LIST`` behavior of :command:`if`, which this generator expression is meant to emulate. CMake 3.14 and later handles this case correctly. The ``OLD`` behavior of this policy is for ``$`` to always return ``0`` if the first argument is empty. The ``NEW`` behavior is to return ``1`` if the first argument is empty and the list contains an empty item. This policy was introduced in CMake version 3.14. 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. .. include:: DEPRECATED.txt