CMake warning about Policy CMP0011 with cmake 3.0.2

[blattms]

Not sure whether this known, but I regularly get:

CMake Warning (dev) at CMakeLists.txt:93 (include):
  Policy CMP0011 is not set: Included scripts do automatic cmake_policy PUSH
  and POP.  Run "cmake --help-policy CMP0011" for policy details.  Use the
  cmake_policy command to set the policy and suppress this warning.

  The included script

    /home/mblatt/DUNE-test/opm-common/cmake/Modules/OpmLibMain.cmake

  affects policy settings.  CMake is implying the NO_POLICY_SCOPE option for
  compatibility, so the effects are applied to the including context.
This warning is for project developers.  Use -Wno-dev to suppress it.

[akva2]

it's known as such, i just haven't found time to prioritize it.

the easy solution is to set it to OLD and be done with it. but i would much prefer to sanity check everything and then set it to NEW because the OLD policy is insane.