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Diffstat (limited to 'share/cmake-3.17/Help/policy/CMP0000.rst')
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diff --git a/share/cmake-3.17/Help/policy/CMP0000.rst b/share/cmake-3.17/Help/policy/CMP0000.rst new file mode 100644 index 0000000..aecfa71 --- /dev/null +++ b/share/cmake-3.17/Help/policy/CMP0000.rst @@ -0,0 +1,34 @@ +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 |