Re: emacs 22.1 on hp-ux 11.11 core dumps when DISPLAY not set

[Richard Stallman <rms@gnu.org>]

    According to the internet, it was released in 2000 and is 3 or 4
    versions old.

That's good.  I think it is ok to desupport versions older than that.

So what about USG systems.  There is no problem with USG 5.4.
Are the USG 5.3 derivatives totally gone now?

However, given this information

    I looked for non-file scope statics in src/*.c. I think there are only
    a handful that aren't definitely in Windows, Mac, or VMS specific code:

    alloca.c      find_stack_direction
    fringe.c      init_fringe_bitmap
    gtkutil.c     menu_grab_callback, xg_separator_p
    image.c       our_memory_fill_input_buffer, gif_load
    xselect.c     x_reply_selection_request

I think we may as well fix the last four, unless that is hard.  Can
you fix them?

alloca.c is not an issue.  It checks for #define static and gives an
error.  It is also surely obsolete since 15 years ago; let's delete it
and its whole support mechanism in Emacs 23.