>>>>> On Fri, 13 Mar 2020 16:09:25 +0100, Robert Pluim <rpluim@gmail.com> said:
    Eli> ... this is not how we introduce terminal-dependent methods.  We don't
    Eli> define different versions of gui_SOMETHING functions in each
    Eli> terminal-specific back-end.  Instead, we add a member to 'struct
    Eli> redisplay_interface', and then assign a different value to it in each
    Eli> back-end.  See how x_redisplay_interface, w32_redisplay_interface,
    Eli> etc. are defined in the respective *term.[cm] files, and how they are
    Eli> used via the FRAME_RIF macro.

    Robert> OK, I can rework it using that.

The following has been compiled and tested on macOS, GNU/Linux, and
MSWindows. Itʼs against emacs-27, where Iʼd prefer to put it, since
people might start building that with Cairo enabled, which would make
this crash more likely, but I can put it in master if you wish.

Robert