Tests assume nothing is already listening on port 9999

Hi!
Tests in chanio, httpold, and io fail for me when running "make test" in the "unix" subdirectory of the tcl8.5.11 sources. I suspect the failures are related. (If not, I'll be happy to file separate bugs.)

The abbreviated output is below, I've attached the complete output of "make test" for all the details. Please let me know if there's any more information I can provide.

Thank you!

==== chan-io-53.10 Bug 1350564, multi-directional fcopy FAILED
---- Result was:
{PANIC[04/15 21:32:15] LVCBase.cxx:426 t:0x2af110b46f10 Error opening config file: } {PANIC[04/15 21:32:15] LVCBase.cxx:426 t:0x2b89ebcb4f10 Error opening config file: }
---- Result should have been (exact matching):
AB BA

==== httpold-4.12 httpEvent FAILED
---- Result was:
ok ok
---- Result should have been (exact matching):
timeout ok

==== io-53.10 Bug 1350564, multi-directional fcopy FAILED
---- Result was:
{PANIC[04/15 21:33:41] LVCBase.cxx:426 t:0x2b7d304a0f10 Error opening config file: } {PANIC[04/15 21:33:41] LVCBase.cxx:426 t:0x2b4800204f10 Error opening config file: }
---- Result should have been (exact matching):
AB BA

$ uname -a
Linux mybox 2.6.18-308.1.1.el5 #1 SMP Fri Feb 17 16:51:01 EST 2012 x86_64 x86_64 x86_64 GNU/Linux

$ cat /etc/redhat-release
Red Hat Enterprise Linux Server release 5.8 (Tikanga)

This is all I did to reproduce:
unzip tcl8511-src.zip
cd tcl8.5.11/unix
./configure --prefix=/home/user/daxelrod/local-sw
make
make test