CMP0057ΒΆ
Support new if()
IN_LIST operator.
CMake 3.3 adds support for the new IN_LIST operator.
The OLD
behavior for this policy is to ignore the IN_LIST operator.
The NEW
behavior is to interpret the IN_LIST operator.
This policy was introduced in CMake version 3.3.
CMake version 3.14.7 warns when the policy is not set and uses
OLD
behavior. Use the cmake_policy()
command to set
it to OLD
or NEW
explicitly.
Note
The OLD
behavior of a policy is
deprecated by definition
and may be removed in a future version of CMake.