message: Werr -Wall for AD code
  no warnings=errors using clang on OSX; this might be different for gcc4.9
diff: # * provided "as is" without express or implied warranty. *
  # **************************************************************************
  +set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -Wall -Werror")
  +
  add_subdirectory(ADbase)
  add_subdirectory(ADrec)
  add_subdirectory(ADsim)
  