CMake Warning \(dev\) at CMP0063-WARN-obj.cmake:[0-9]+ \(add_library\):
  Policy CMP0063 is not set: Honor visibility properties for all target
  types.  Run "cmake --help-policy CMP0063" for policy details.  Use the
  cmake_policy command to set the policy and suppress this warning.

  Target "myobject" of type "OBJECT_LIBRARY" has the following visibility
  properties set for CXX:

    CXX_VISIBILITY_PRESET
    VISIBILITY_INLINES_HIDDEN

  For compatibility CMake is not honoring them for this target.
Call Stack \(most recent call first\):
  CMakeLists.txt:[0-9]+ \(include\)
This warning is for project developers.  Use -Wno-dev to suppress it.