On Wed, Oct 24, 2018 at 06:06:13PM +0300, Eli Zaretskii wrote:
> > Date: Wed, 24 Oct 2018 12:17:36 +0100
> > From: Alan Third <alan@idiocy.org>
> > Cc: 33126@debbugs.gnu.org
> > 
> > Confirmed. I found this in image.c:
> > 
> > /* XPM support functions for NS where libxpm is not available.
> >    Only XPM version 3 (without any extensions) is supported.  */
> > 
> > I suppose to get xpm2 support you’ll have to find a version of libxpm
> > somewhere.
> > 
> > There is an error logged in *Messages*, perhaps it should specify XPM3
> > per the attached patch.
> 
> Yes.  In addition, I'd add an entry about this in PROBLEMS.

Done. I created a subsection for macOS, although I’m not sure if this
is actually a macOS specific issue, or general to systems lacking X11
libraries (MS Windows?).
-- 
Alan Third