CMP0055 — CMake 3.30.1 Documentation

# CMP0055

Added in version 3.2.

Strict checking for the `break()` command.

CMake 3.1 and lower allowed calls to the `break()` command outside of a loop context and also ignored any given arguments. This was undefined behavior.

The `OLD` behavior for this policy is to allow `break()` to be placed outside of loop contexts and ignores any arguments. The `NEW` behavior for this policy is to issue an error if a misplaced break or any arguments are found.

This policy was introduced in CMake version 3.2. It may be set by `cmake_policy()` or `cmake_minimum_required()`. If it is not set, CMake warns, and uses `OLD` behavior.

Note

The `OLD` behavior of a policy is `deprecated by definition` and may be removed in a future version of CMake.