yamlcpp policy?

[ng0]

I picked up my supercollider package again.
At the very beginning of the cmake build (configure) I can see this:

-- Found YAMLCPP: 
/gnu/store/d54zy49pbzsyfviqhjlwdsavgg6mx3w7-yaml-cpp-0.5.3/include  
CMake Warning (dev) at external_libraries/hidapi/CMakeLists.txt:3 (project):
  Policy CMP0048 is not set: project() command manages VERSION variables.
  Run "cmake --help-policy CMP0048" for policy details.  Use the cmake_policy
  command to set the policy and suppress this warning.

  The following variable(s) would be set to empty:

    PROJECT_VERSION
    PROJECT_VERSION_MAJOR
    PROJECT_VERSION_MINOR
    PROJECT_VERSION_PATCH
This warning is for project developers.  Use -Wno-dev to suppress it.


Is this our intention for yamlcpp, or do we just have no other way to
specify it other than setting the variables ourselves in packages?
-- 
ng0
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