When I try to install IO::Tty in cygwin environment, it gets stuck at "trying to open /dev/tty?..." each time.

The first time I tried it got stuck at:

"trying to open /dev/tty1...".
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When I aborted, and retried, it got stuck at:

"trying to open /dev/tty2..."
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Each time I abort and retry the tty number goes up - tty3, tty4 etc.

(see log snippet at the end)

Given my limited knowledge of unix, I tried this:

ln -s /dev/stdout /dev/tty5
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where 5 was the next tty number that it would get hung at duing the next attempt. It still got hung at tty5. In other words the symbolic link did not help.

I am running the latest version of cygwin v1.7.9. I need to install IO::Tty so that perl module Expect can be installed.

I'm really out of ideas. Your help will be much appreciated.

:
Writing IO::Tty::Constant.pm...
DEFINE = -DHAVE_CYGWIN -DHAVE_DEV_PTMX -DHAVE_GRANTPT -DHAVE_OPENPTY -
+DHAVE_POSIX_OPENPT -DHAVE_PTSNAME -DHAVE_PTY_H -DHAVE_SIGACTION -DHAV
+E_STRLCPY -DHAVE_TERMIOS_H -DHAVE_TERMIO_H -DHAVE_TTYNAME -DHAVE_UNLO
+CKPT
Checking if your kit is complete...
Looks good
Writing Makefile for IO::Tty
cp Tty.pm blib/lib/IO/Tty.pm
cp Tty/Constant.pm blib/lib/IO/Tty/Constant.pm
cp Pty.pm blib/lib/IO/Pty.pm
/usr/bin/perl.exe /usr/lib/perl5/5.10/ExtUtils/xsubpp  -typemap /usr/l
+ib/perl5/5.10/ExtUtils/typemap  Tty.xs > Tty.xsc && mv Tty.xsc Tty.c
gcc -c   -DPERL_USE_SAFE_PUTENV -U__STRICT_ANSI__ -fno-strict-aliasing
+ -pipe -fstack-protector -I/usr/local/include -DUSEIMPORTLIB -O3   -D
+VERSION=\"1.08\" -DXS_VERSION=\"1.08\"  "-I/usr/lib/perl5/5.10/i686-c
+ygwin/CORE"  -DHAVE_CYGWIN -DHAVE_DEV_PTMX -DHAVE_GRANTPT -DHAVE_OPEN
+PTY -DHAVE_POSIX_OPENPT -DHAVE_PTSNAME -DHAVE_PTY_H -DHAVE_SIGACTION 
+-DHAVE_STRLCPY -DHAVE_TERMIOS_H -DHAVE_TERMIO_H -DHAVE_TTYNAME -DHAVE
+_UNLOCKPT Tty.c
rm -f blib/arch/auto/IO/Tty/Tty.dll
g++  --shared  -Wl,--enable-auto-import -Wl,--export-all-symbols -Wl,-
+-stack,8388608 -Wl,--enable-auto-image-base -L/usr/local/lib -fstack-
+protector Tty.o  -o blib/arch/auto/IO/Tty/Tty.dll     \
      /usr/lib/perl5/5.10/i686-cygwin/CORE/cygperl5_10.dll -lutil     
+ \
      
chmod 755 blib/arch/auto/IO/Tty/Tty.dll
test -s Tty.bs && cp Tty.bs blib/arch/auto/IO/Tty/Tty.bs && \
      chmod 644 blib/arch/auto/IO/Tty/Tty.bs
Manifying blib/man3/IO.Tty.Constant.3pm
Manifying blib/man3/IO.Tty.3pm
Manifying blib/man3/IO.Pty.3pm
  RGIERSIG/IO-Tty-1.08.tar.gz
  make -- OK
Running make test
PERL_DL_NONLAZY=1 /usr/bin/perl.exe "-Iblib/lib" "-Iblib/arch" test.pl
1..4
Configuration: -DHAVE_CYGWIN -DHAVE_DEV_PTMX -DHAVE_GRANTPT -DHAVE_OPE
+NPTY -DHAVE_POSIX_OPENPT -DHAVE_PTSNAME -DHAVE_PTY_H -DHAVE_SIGACTION
+ -DHAVE_STRLCPY -DHAVE_TERMIOS_H -DHAVE_TERMIO_H -DHAVE_TTYNAME -DHAV
+E_UNLOCKPT
Checking for appropriate ioctls: 
Checking that returned fd's don't clash with stdin/out/err...
trying posix_openpt()...
trying grantpt()...
trying unlockpt()...
trying ptsname()...
trying to open /dev/tty4...
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