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diff --git a/Help/policy/CMP0130.rst b/Help/policy/CMP0130.rst new file mode 100644 index 0000000..0dd5623 --- /dev/null +++ b/Help/policy/CMP0130.rst @@ -0,0 +1,32 @@ +CMP0130 +------- + +.. versionadded:: 3.24 + +:command:`while` diagnoses condition evaluation errors. + +CMake 3.23 and below accidentally tolerated errors encountered while +evaluating the condition passed to the :command:`while` command +(but not the :command:`if` command). For example, the code + +.. code-block:: cmake + + set(paren "(") + while(${paren}) + endwhile() + +creates an unbalanced parenthesis during condition evaluation. + +CMake 3.24 and above prefer to diagnose such errors. This policy +provides compatibility for projects that have not been updated to +fix their condition errors. + +The ``OLD`` behavior for this policy is to ignore errors in +:command:`while` conditions. The ``NEW`` behavior for this +policy is to diagnose errors in :command:`while` conditions. + +This policy was introduced in CMake version 3.24. 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 |