| CMP0000 |
| ------- |
| |
| A minimum required CMake version must be specified. |
| |
| CMake requires that projects specify the version of CMake to which |
| they have been written. This policy has been put in place so users |
| trying to build the project may be told when they need to update their |
| CMake. Specifying a version also helps the project build with CMake |
| versions newer than that specified. Use the :command:`cmake_minimum_required` |
| command at the top of your main ``CMakeLists.txt`` file: |
| |
| :: |
| |
| cmake_minimum_required(VERSION <major>.<minor>) |
| |
| where ``<major>.<minor>`` is the version of CMake you want to support |
| (such as ``3.14``). The command will ensure that at least the given |
| version of CMake is running and help newer versions be compatible with |
| the project. See documentation of :command:`cmake_minimum_required` for |
| details. |
| |
| Note that the command invocation must appear in the ``CMakeLists.txt`` |
| file itself; a call in an included file is not sufficient. However, |
| the :command:`cmake_policy` command may be called to set policy ``CMP0000`` |
| to ``OLD`` or ``NEW`` behavior explicitly. The ``OLD`` behavior is to |
| silently ignore the missing invocation. The ``NEW`` behavior is to issue |
| an error instead of a warning. An included file may set ``CMP0000`` |
| explicitly to affect how this policy is enforced for the main |
| ``CMakeLists.txt`` file. |
| |
| This policy was introduced in CMake version 2.6.0. |
| |
| .. include:: DEPRECATED.txt |