# CMP0046

Warning

The `OLD` behavior of this policy was removed in CMake version 4.0. This policy must be set to `NEW` by a call to `cmake_minimum_required()` or `cmake_policy()`.

Error on non-existent dependency in add_dependencies.

CMake 2.8.12 and lower silently ignored non-existent dependencies listed in the `add_dependencies()` command.

The `OLD` behavior for this policy is to silently ignore non-existent dependencies. The `NEW` behavior for this policy is to report an error if non-existent dependencies are listed in the `add_dependencies()` command.

This policy was introduced in CMake version 3.0. Prior to removal in CMake version 4.0, it could be set by `cmake_policy()` or `cmake_minimum_required()`. If it was not set, CMake warned, and used `OLD` behavior.