Samba 3.5.2 with/out aio on FreeBSD 7.2

[Gabor Radnai]

Hi,

I have a FreeBSD 7.2/amd64 machine with Samba 3.4.5 with aio support
enabled. If I try to upgrade to Samba 3.5.2 from source aio support compiles
but I receive "Abnormal server exit: Failed to setup RT_SIGNAL_AIO handler"
fatal error from smbd. Without aio 3.5.2 too works nice.

Did somebody successfully compiled and run Samba 3.5.2 with aio enabled?
What special compile/runtime option would be required to enable aio?

Thanks.