Kannel, AT2 and Cygwin : blocking

On my test servers here I have to manually unblock the serial port
connection to each of my modems using Hyperterminal or the like each time I
reboot my system before Kannel is able to connect to the modems connected to
it.

I've read on the CygWin list that there is some potentially different
behaviour in the way that O_NONBLOCK works for serial devices which could
mean that the open fails when it shouldn't do so - has anyone else seen this
or worked around it?

Cheers

Alex

--
www.skywire.co.uk