Am 02.05.2014 08:56, schrieb Ulrike Fischer:
> Am Thu, 1 May 2014 02:20:36 +0200 schrieb Heiko Oberdiek:
>> Thus inputenc is updated to version 2014/04/30 v1.2b, which only
>> prints a warning for encodings utf8, utf8x, ascii, x-ascii for
>> LuaTeX/XeTeX.
> I just remembered. Couldn't one add this need extension to utf8:
> inputenc:

not for this release due to timing if not for anything else.

I think improving on the error message is
certainly helpful, however a solution would need to work in all cases
and should not draw on packages that may or may not be available.