7.4Beta1 "failed to create socket: Address family not supported by protocol"

I'm receiving the following error during startup:

Aug 10 14:11:27 thunder postgres[18613]: [1-1] LOG: failed to create
socket: Address family not supported by protocol

Aug 10 14:11:27 thunder postgres[18619]: [2-1] LOG: database system was
shut down at 2003-08-10 14:11:11 MDT

Aug 10 14:11:27 thunder postgres[18619]: [3-1] LOG: checkpoint record is
at 4/E28389B4

Aug 10 14:11:27 thunder postgres[18619]: [4-1] LOG: redo record is at
4/E28389B4; undo record is at 0/0; shutdown TRUE

Aug 10 14:11:27 thunder postgres[18619]: [5-1] LOG: next transaction
id: 80139; next oid: 35014046

Aug 10 14:11:27 thunder postgres[18619]: [6-1] LOG: database system is
ready

And yet everything appears to be working fine. Something I've done
wrong in the build/configure?

tassiv=# select version();
version

-----------------------------------------------------------------------
------------------------------------ PostgreSQL 7.4beta1 on
i686-pc-linux-gnu, compiled by GCC gcc (GCC) 3.2.2 (Mandrake Linux 9.1
3.2.2-3mdk)

Cheers,
Rob

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