cmake_policy(SET CMP0009 NEW)
message(STATUS "Running CMake on GLOB-CONFIGURE_DEPENDS-CMP0009-RerunCMake")
file(GLOB_RECURSE
  CONTENT_LIST
  CONFIGURE_DEPENDS
  LIST_DIRECTORIES false
  RELATIVE "${CMAKE_CURRENT_BINARY_DIR}"
  "${CMAKE_CURRENT_BINARY_DIR}/test2/*"
  )
add_custom_target(CONTENT_ECHO ALL ${CMAKE_COMMAND} -E echo ${CONTENT_LIST})