Utility targets may not have link dependencies.
CMake 2.8.12 and lower allowed using utility targets in the left hand side position of the
target_link_libraries() command. This is an indicator of a bug in user code.
OLD behavior for this policy is to ignore attempts to set the link libraries of utility targets. The
NEW behavior for this policy is to report an error if an attempt is made to set the link libraries of a utility target.
This policy was introduced in CMake version 3.0. CMake version 3.15.2 warns when the policy is not set and uses
OLD behavior. Use the
cmake_policy() command to set it to
OLD behavior of a policy is
deprecated by definition and may be removed in a future version of CMake.
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