https://github.com/Kitware/CMake
Tip revision: ff7a2e37bfff23ce1751a93b3eba179fbf32a9b6 authored by Brad King on 14 July 2021, 14:10:23 UTC
CMake 3.21.0
CMake 3.21.0
Tip revision: ff7a2e3
CMP0001.rst
CMP0001
-------
``CMAKE_BACKWARDS_COMPATIBILITY`` should no longer be used.
The behavior is to check ``CMAKE_BACKWARDS_COMPATIBILITY`` and present
it to the user. The ``NEW`` behavior is to ignore
CMAKE_BACKWARDS_COMPATIBILITY completely.
In CMake 2.4 and below the variable ``CMAKE_BACKWARDS_COMPATIBILITY`` was
used to request compatibility with earlier versions of CMake. In
CMake 2.6 and above all compatibility issues are handled by policies
and the :command:`cmake_policy` command. However, CMake must still check
``CMAKE_BACKWARDS_COMPATIBILITY`` for projects written for CMake 2.4 and
below.
This policy was introduced in CMake version 2.6.0. 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