[PATCH v2 1/2] *: add modern gettext support

[Bruno Haible]

Hi Arsen,
> >   2015-08-24 "Missing parts of fixes for in-tree libiconv" (cfe101c6a82)
> ...
> Bruno, should these modifications just be restored, or do you think
> there's some preferable way to add sibling libiconv discovery?  I am
> fine with either.

As libiconv does not have a 'uninstalled-config.sh.in' script like
gettext-runtime has, the simplest solution is to just restore the modifications
(i.e. upgrade to the gnulib iconv.m4 + said modifications).

Bruno