🚀 go-pugleaf

The emacs built from the fresh-out-of-the-box 18.57 distribution under
RTU 4.0A gets a
	Fatal error (3).Quit (core dumped)
when you type a ^G.  The problem is in init_keyboard().  Masscrap RTU has
termio, but s-rtu.h doesn't define USG, so a signal handler is never set
for SIGQUIT.  The following fixes the problem (though I'm not sure if
it's appropriate for other systems.)



*** keyboard.c.old	Tue Jan  8 20:40:31 1991
--- keyboard.c	Thu Jun 27 19:08:07 1991
***************
*** 2098,2108 ****
    if (!noninteractive)
      {
        signal (SIGINT, interrupt_signal);
! #ifdef USG
!       /* On USG systems, C-g is set up for both SIGINT and SIGQUIT
! 	 and we can't tell which one it will give us.  */
        signal (SIGQUIT, interrupt_signal);
! #endif /* USG */
  /* Note SIGIO has been undef'd if FIONREAD is missing.  */
  #ifdef SIGIO
        signal (SIGIO, input_available_signal);
--- 2098,2108 ----
    if (!noninteractive)
      {
        signal (SIGINT, interrupt_signal);
! #ifdef HAVE_TERMIO
!       /* For systems with SysV TERMIO, C-g is set up for both SIGINT and
! 	 SIGQUIT and we can't tell which one it will give us.  */
        signal (SIGQUIT, interrupt_signal);
! #endif /* HAVE_TERMIO */
  /* Note SIGIO has been undef'd if FIONREAD is missing.  */
  #ifdef SIGIO
        signal (SIGIO, input_available_signal);


There are also serious problems with the X11 handling under RTU.  When
xemacs is run without -nw, it does not respond to keyboard or mouse input.
The only way to stop it is with kill, which terminates the process but
leaves the window on the screen.

I'd tackle this problem as well, if only the RTU debugger weren't so utterly
hopeless.  I can live without the X features.


chris ross   <cjross@bbn.com>   BBN Advanced Simulations   (617) 873-3272
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