I was under the impression that the following .m4 files, list from gnulib/config/srclist.txt, were still maintained in gnulib, and therefore should be kept in sync with the latest gettext release, and not updated in gnulib. (While the other .m4 files in gettext-runtime are indeed maintained in gnulib.)
They all got 2016 added to their copyright years a couple days ago. Daiki, Paul? # Although gettext-runtime/m4 has other .m4 files, they are maintained # in gnulib. $GETTEXT/gettext-runtime/m4/codeset.m4 m4 $GETTEXT/gettext-runtime/m4/gettext.m4 m4 $GETTEXT/gettext-runtime/m4/iconv.m4 m4 $GETTEXT/gettext-runtime/m4/intl.m4 m4 $GETTEXT/gettext-runtime/m4/intldir.m4 m4 $GETTEXT/gettext-runtime/m4/intlmacosx.m4 m4 $GETTEXT/gettext-runtime/m4/lcmessage.m4 m4 $GETTEXT/gettext-runtime/m4/nls.m4 m4 $GETTEXT/gettext-runtime/m4/po.m4 m4
