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CMAKE_POLICY_DEFAULT_CMP<NNNN>
------------------------------
Default for CMake Policy ``CMP<NNNN>`` when it is otherwise left unset.
Commands :command:`cmake_minimum_required(VERSION)` and
:command:`cmake_policy(VERSION)` by default leave policies introduced after
the given version unset. Set ``CMAKE_POLICY_DEFAULT_CMP<NNNN>`` to ``OLD``
or ``NEW`` to specify the default for policy ``CMP<NNNN>``, where ``<NNNN>``
is the policy number.
This variable should not be set by a project in CMake code as a way to
set its own policies; use :command:`cmake_policy(SET)` instead. This
variable is meant to externally set policies for which a project has
not itself been updated:
* Users running CMake may set this variable in the cache
(e.g. ``-DCMAKE_POLICY_DEFAULT_CMP<NNNN>=<OLD|NEW>``). Set it to ``OLD``
to quiet a policy warning while using old behavior or to ``NEW`` to
try building the project with new behavior.
* Projects may set this variable before a call to :command:`add_subdirectory`
that adds a third-party project in order to set its policies without
modifying third-party code.
|
