4.4BSD snapshot (revision 8.1); add 1993 to copyright
use paths.h name
don't use CIGNORE, just OR in TCSASOFT
Add include files to get prototype declarations, and fix bugs found.
TCSADFLUSH -> TCSAFLUSH
new copyright notice
ignore TSTP , termios
increase buffer to 128
from scratch; write to /dev/tty if possible, block interrupts
added LIBC_SCCS condition for sccs ids
Add copyright
inline expand gtty() and stty().
allow for prompts with % and flush stderr
date and time created 80/12/21 16:50:35 by wnj