[Spambayes] fcntl not available on Windows

[Miguel Vargas]

I am running Win98 but portalocker.py only works on NT, it fails on 
Win98 with error: (120, 'LockFileEx', 'This function is only valid in 
Win32 mode.').

I found an example of Win98 file locking in this thread 
http://mail.python.org/pipermail/python-win32/2001-August/000123.html. 
It uses Win32's LockFile instead of LockFileEx, but it can't set the 
exclusive flag.  I don't know enough to try to fix your patch, so I'm 
giving up :(

I think I need a better OS, I wonder where my RedHat CD is at ...