Minimal patches for PostgreSQL 7.0b3 on NetBSD/alpha 1.4.1....

Here are minimal patches to get 7.0 beta 3 limping along on NetBSD/alpha
release 1.4.1. 

There are lots of problems with the oid handling, and I can't get it
to successfully even begin to do a make runcheck, make runtest, or
make bigtest. 

The results of a maketest are:
=============== Notes...                              =================
postmaster must already be running for the regression tests to succeed.
The time zone is set to PST8PDT for these tests by the client frontend.
Please report any apparent problems to ports@postgresql.org
See regress/README for more information.

=============== dropping old regression database...   =================
ERROR:  typeidTypeRelid: Invalid type - oid = 0
dropdb: database removal failed
=============== creating new regression database...   =================
ERROR:  createdb: database 'regression' already exists
createdb: database creation failed
createdb failed

Minimal patches are attached. They are enough to get 7.0 beta 3 up
and able to do minimal SQL queries. They are also required to get
it to build at all.
-- 
Kevin P. Neal                                http://www.pobox.com/~kpn/

"You're a slacker if you only give 90% 'cause you are afraid of the \
  other 10%."    -- Ross Smith               Apr 22 1999 2:29am