found on legacy C compilers of HP-UX, IRIX and Tru64. (Reported by roadkill, Richard Townsend, Maik Hertha and Minsik Kim)
and installed layouts to make maintenance simple and easy. And it also adds four new codecs; big5hkscs, euc-jis-2004, shift-jis-2004 and iso2022-jp-2004.