* configure.in: Test for libintl.h.

[Phil Edwards]

> > how about this instead:
> > 
> >     if test $USE_NLS = yes; then
> >       AC_SEARCH_LIBS(gettext, intl)
> >     fi

This still isn't enough; it's still possible that gettext won't be found.
I forgot to add the bit that disables NLS entirely if the function remains
missing.  Patch in progress.

Phil

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