On Wed, Jun 15, 2016 at 10:50 AM, Eli Zaretskii <eliz@gnu.org> wrote:

>
> >  > (if (not (display-graphic-p))
> >  > ;; Installation of Hyperbole requires a non-dumb terminal
> >  > ;; instance of Emacs, i.e. under a window system.
>
> Why do you need that?  IOW, what doesn't work on a TTY frame?  I don't
> expect to see any real problems, since in a modern Emacs version most
> features "just work" on TTY frames.  Colors, menus, dialogs, mouse,
> everything.  There could be some old code you have that fails because
> it uses low-level or obsolescent APIs, but that's about all I'd
> expect.
>
> So please tell why you needed to enforce display-graphic-p.
>

----
Good news with recent updates to Hyperbole, it builds just fine under a
tty-based Emacs (V25.0.94), as I just tested it.
So I will remove that conditional from the installation instructions.

Bob