message: cmake: Bump minimum required version of CMake to 3.12
  This will allow use of `target_link_libraries` with object libraries.
diff: # accompanying file Copyright.txt for details.
  #------------------------------------------------------------------------------#
  -cmake_minimum_required(VERSION 3.6)
  +cmake_minimum_required(VERSION 3.12)
  # Fail immediately if not using an out-of-source build
  if(CMAKE_CURRENT_SOURCE_DIR STREQUAL CMAKE_CURRENT_BINARY_DIR)
  @@ -17,9 +17,6 @@ include(${CMAKE_CURRENT_LIST_DIR}/cmake/ADIOSFunctions.cmake)
  setup_version(2.5.0)
  project(ADIOS2 VERSION ${ADIOS2_VERSION})
  -if(POLICY CMP0074)
  - cmake_policy(SET CMP0074 NEW)
  -endif()
  #------------------------------------------------------------------------------#
  # Some boilerplate to setup nice output directories
  