This patch fix the Makefiles in contrib/{pginterface, spi,
miscutil, int8, ip_and_mac, sequence, soundex, string, userlock,
array, datetime} to install their modules in one directory(lib/modules/).
implementation that's in contrib/ip_and_mac/. This one works right
with 6.3, avoids the problems I ran into earlier with LIKE, and
includes a bit of extra functionality.
From: Tom I Helbekkmo <tih@Hamartun.Priv.NO>
PostgreSQL type extensions for IP and MAC addresses.
I needed to record IP and MAC level ethernet addresses in a data
base, and I really didn't want to store them as plain strings, with
no enforced error checking, so I put together the accompanying code
as my first experiment with adding a data type to PostgreSQL. I
then thought that this might be useful to others, both directly and
as a very simple example of how to do this sort of thing, so here
it is, in the hope that it will be useful.
