Convert to use buildlink2.mk for postgress dependency.
===========================================
Mon Jan 6 2003 version 0.7.1
* async_exec: remove check of PQisBusy.
patch supplied byd <m_seki@mva.biglobe.ne.jp>
Wed Oct 16 2002 version 0.7.0
* rename README.jp -> README.ja.
Thu Oct 10 2002
* get_notify: bug fix Deletes of unnecessary "free(notify);"
debian bug report.
Wed Oct 9 2002
* query: add pgresult_clear.
patch supplied by "Shirai,Kaoru" <shirai@p1jp.com>
Sat Sep 28 2002
* PGconn: add methods escape, quote, escape_bytes.
patch supplied by MoonWolf <moonwolf@moonwolf.com>
Tue Aug 20 2002
* extconf.rb add dir_config('postgres')
patch supplied by Nate Haggard <nate@wordplace.com>
Mon Jun 3 2002 version 0.7.0-pre2
* not to use fe_getauthname().
patch supplied by Neil Conway <nconway@klamath.dyndns.org>
Thu May 30 2002 version 0.7.0-pre1
* Fix to insert_table so that nil values in Ruby are inserted
back into the database as nulls.
patch supplied by Jeremy Henty <jeremy@chaos.org.uk>
* Fix to insert_table to protect characters that Postgres would
otherwise interpret specially.
patch supplied by Jeremy Henty <jeremy@chaos.org.uk>
Wed Apr 24 2002
* Removed unused variables.
* Improve notification code.
* Add a missing "return Qnil" statement in a function
declared to return VALUE.
* Fix an minor error in pgconn_loopen().
patch supplied by Neil Conway <nconway@klamath.dyndns.org>
Tue Mar 5 2002
* fix pglarge_write return.
patch supplied by Noboru Matui <silicon@mx1.freemail.ne.jp>
Mon Jan 7 2002
* refer to POSTGRES_INCLUDE and POSTGTRES_LIB
environmental variables.
patch supplied by Neil Conway <nconway@klamath.dyndns.org>
Sun Dec 16 2001
* add methods "getisnull".
patch supplied by Jeremy Henty <jeremy@chaos.org.uk>
Tue Nov 27 2001
* convert NULL => nil .
patch supplied by "Shirai,Kaoru" <shirai@p1jp.com>
