Minor errors on boot

[Evan Hunt]

> When my 64-bit Centos5 machine boots up, I see the following messages:
> process `rndc' is using obsolete setsockopt SO_BSDCOMPAT
> process `named' is using obsolete setsockopt SO_BSDCOMPAT

This is an unfortunate linuxism.  The kernel people put this warning
in, but left SO_BSDCOMPAT defined in their header files, so you can't
get around it by using #ifdef SO_BSDCOMPAT.

BIND 9 has a linux kernel version check that's supposed to prevent it from
setting that socket option on kernels that don't need it... but I guess
it doesn't work on CentOS5, I've no idea why not.

The proper fix would be for the linux people to stop issuing this
warning in production kernels.  In the meantime, you can shut it up by
editing lib/isc/unix/socket.c and changing the function clear_bsdcompat()
so it always sets bsdcompat to ISC_FALSE.

--
Evan Hunt -- evan_hunt at isc.org
Internet Systems Consortium, Inc.