duplication of cpp_definitions

There is a duplication of the function in checkfortranpreprocessor.cmake

function(cpp_definitions defName value cacheString)
  option(CMAKE_${defName} ${cacheString} ${value})
  if (CMAKE_${defName})
    add_compile_definitions(${defName})
  endif()
endfunction()

and in utils.cmake

function(cpp_definitions defName defCMakeName value cacheString)
	set(${defCMakeName} "${value}" CACHE STRING "${cacheString}")
	if (${defCMakeName})
		add_definitions("${defName}")
	endif()
endfunction()

I think the first one is more precise but am not really an expert on this. Why is it called cpp_definitions?