[Bug-XBoard] xboard 4.6.2 + crafty with zippy code

[John Summerfield]

I built with these options:
./configure --prefix=/home/john/xboard --disable-nls --enable-xpm 
--enable-ptys --enable-zippy --with-x
on CentOS 6.

I start xboard with this command:
xboard -ics -icshost freechess.org -zp -firstChessProgram \
  /usr/local/bin/crafty -firstDirectory /home/john/ficsdir/

and find myself talking first to crafty then to crafty and FICS both 
concurrently.

It's not very useful, and if I mange to get a seek command to FICS, the 
acceptor does not get to talk to crafty and so the game aborts.