CMP0038ΒΆ
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().
Targets may not link directly to themselves.
CMake 2.8.12 and lower allowed a build target to link to itself directly with
a target_link_libraries() call. This is an indicator of a bug in
user code.
The OLD behavior for this policy is to ignore targets which list themselves
in their own link implementation. The NEW behavior for this policy is to
report an error if a target attempts to link to itself.
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.