CMake Warning \(dev\) at CMP0072-WARN.cmake:3 \(if\):
  Policy CMP0072 is not set: if\(EXISTS\) checks for existence but not
  readability.  Run "cmake --help-policy CMP0072" for policy details.  Use
  the cmake_policy command to set the policy and suppress this warning.

  The path

    .*/broken-symlink

  does not exist according to the old behavior of if\(EXISTS\), but it does
  exist by the new behavior.  The old behavior checked if the path is
  readable whereas the new behavior checks if any file exists with the path.
  If the old behavior is wanted, CMake 3.10 offers file\(READ LIMIT 0
  RESULT_VARIABLE res\).
Call Stack \(most recent call first\):
  CMakeLists.txt:12 \(include\)
This warning is for project developers.  Use -Wno-dev to suppress it.
