gettext.m4 from gnulib uses a macro gt_INTL_MACOSX, but running gnulib-tool --add-import doesn't cause this macro to be defined in the produced configure script.
There is a definition in intlmacosx.m4 but this file is not pulled in. I have a backup of this file intlmacosx.m4~ which was probably created by gnulib-tool when I updated the gnulib files. My guess is that the dependencies for the gettext module have changed so it is not pulling in the definition of this macro. Originally reported here: http://lists.gnu.org/archive/html/bug-texinfo/2017-07/msg00026.html
