CMP0016ΒΆ
target_link_libraries() reports error if its only argument
is not a target.
In CMake 2.8.2 and lower the target_link_libraries() command silently
ignored if it was called with only one argument, and this argument
wasn't a valid target. In CMake 2.8.3 and above it reports an error
in this case.
This policy was introduced in CMake version 2.8.3.
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.