The functions ecvt, fcvt, gcvt, getw, putw are no longer in POSIX and
the glibc manual pretty much recommends against them. How about if we
drop Gnulib support for them? This would speed up 'configure' a bit,
among other things. As far as I know nobody uses them.
- Drop Gnulib support for ecvt, fcvt, gcvt, getw, putw? Paul Eggert