# CMP0139

Added in version 3.24.

The `if()` command supports path comparisons using `PATH_EQUAL` operator.

The `OLD` behavior for this policy is to ignore the `PATH_EQUAL` operator. The `NEW` behavior is to interpret the `PATH_EQUAL` operator.

This policy was introduced in CMake version 3.24. 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.