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Diffstat (limited to 'Help/policy/CMP0000.rst')
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diff --git a/Help/policy/CMP0000.rst b/Help/policy/CMP0000.rst new file mode 100644 index 0000000..9fbf842 --- /dev/null +++ b/Help/policy/CMP0000.rst @@ -0,0 +1,30 @@ +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 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 "2.6"). 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 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 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. |