^CMake Deprecation Warning at CMP0128WarnUnset-(C|CXX)\.cmake:[0-9]+ \(cmake_policy\):
  The OLD behavior for policy CMP0128 will be removed from a future version
  of CMake\.

  The cmake-policies\(7\) manual explains that the OLD behaviors of all
  policies are deprecated and that a policy should be set to OLD only under
  specific short-term circumstances\.  Projects should be ported to the NEW
  behavior and not rely on setting a policy to OLD\.
Call Stack \(most recent call first\):
  CMakeLists\.txt:[0-9]+ \(include\)
+
CMake Warning \(dev\) in CMakeLists\.txt:
  Policy CMP0128 is not set: Selection of language standard and extension
  flags improved\.  Run "cmake --help-policy CMP0128" for policy details\.  Use
  the cmake_policy command to set the policy and suppress this warning\.

  For compatibility with older versions of CMake, compiler extensions won't
  be @opposite@\.
This warning is for project developers\.  Use -Wno-dev to suppress it\.