Excerpts from mail: 19-Jun-95 Assming char == signed char?
s.k.stevens@ic.ac.uk (1827)

> Any chance of telling us where your example came from ;-)

Perhaphs I should have written it `(char)(-1)'.  Still going by the
ongoing exchange the below was close enough.  Oh and I couldn't exactly
miss it, the compiler gave a warning ...

What are you going to do with the ones you found?  I suspect that they
could be useful to others.

			regards, Andrew

(Just don't mention the rugby^D^D^D^D^Dwar ... :-)

*** nbsd/sys/kern/SRC/tty_compat.c	Tue Nov 22 09:45:50 1994
--- nbsd/sys/kern/tty_compat.c	Sat Jun 17 00:09:33 1995
***************
*** 154,160 ****
  		cc[VSTOP] = tc->t_stopc;
  		cc[VEOF] = tc->t_eofc;
  		cc[VEOL] = tc->t_brkc;
! 		if (tc->t_brkc == -1)
  			cc[VEOL2] = _POSIX_VDISABLE;
  		break;
  	}
--- 154,160 ----
  		cc[VSTOP] = tc->t_stopc;
  		cc[VEOF] = tc->t_eofc;
  		cc[VEOL] = tc->t_brkc;
! 		if (tc->t_brkc == (char)-1)
  			cc[VEOL2] = _POSIX_VDISABLE;
  		break;
  	}