bug#33771: 27.0.50; Error building Harfbuzz branch on Debian testing

[Eli Zaretskii]

> From: Philipp Stephani <p.stephani2@gmail.com>
> Date: Mon, 17 Dec 2018 21:34:52 +0100
> Cc: Mike Kupfer <mkupfer@alum.berkeley.edu>, 33771@debbugs.gnu.org, 
>       far.nasiri.m@gmail.com
> 
> > >   CC       ftfont.o
> > > ftfont.c:2819:1: warning: ‘ftfont_shape_by_hb’ defined but not used
> > > [-Wunused-function]
> > >  ftfont_shape_by_hb (Lisp_Object lgstring, FT_Face ft_face, hb_font_t 
> > > *hb_font,
> > >  ^~~~~~~~~~~~~~~~~~
> > > ftfont.c:482:1: warning: ‘ftfont_get_hb_font’ defined but not used
> > > [-Wunused-function]
> > >  ftfont_get_hb_font (struct ftfont_info *ftfont_info)
> > >  ^~~~~~~~~~~~~~~~~~
> >
> > I tried to fix that, please test.
> 
> Sure, now I get two different warnings:
> 
>   CC       ftfont.o
> ftfont.c:2804:1: warning: ‘get_hb_unicode_funcs’ defined but not used
> [-Wunused-function]
>  get_hb_unicode_funcs (void)
>  ^~~~~~~~~~~~~~~~~~~~
> ftfont.c:482:1: warning: ‘ftfont_get_hb_font’ defined but not used
> [-Wunused-function]
>  ftfont_get_hb_font (struct ftfont_info *ftfont_info)
>  ^~~~~~~~~~~~~~~~~~

Any improvement now?