CMake Warning (policy) in CMakeLists\.txt:
  Policy CMP0087 is not set: Install CODE|SCRIPT allow the use of generator
  expressions\.  Run "cmake --help-policy CMP0087" for policy details\.  Use
  the cmake_policy command to set the policy and suppress this warning\.
This warning is for project developers\.  Use -Wno-author or -Wno-policy to
suppress it\.
