gnu: Add postgresql.

* gnu/packages/postgresql.scm: New file.
* gnu-system.am (GNU_SYSTEM_MODULES): Add it.

gnu-system.am

@@ -199,6 +199,7 @@ GNU_SYSTEM_MODULES =				\
   gnu/packages/pkg-config.scm			\
   gnu/packages/plotutils.scm			\
   gnu/packages/popt.scm				\
+  gnu/packages/postgresql.scm			\
   gnu/packages/pth.scm				\
   gnu/packages/pulseaudio.scm			\
   gnu/packages/pretty-print.scm			\

gnu/packages/postgresql.scm

@@ -0,0 +1,52 @@
+;;; GNU Guix --- Functional package management for GNU
+;;; Copyright © 2014 David Thompson <davet@gnu.org>
+;;;
+;;; This file is part of GNU Guix.
+;;;
+;;; GNU Guix is free software; you can redistribute it and/or modify it
+;;; under the terms of the GNU General Public License as published by
+;;; the Free Software Foundation; either version 3 of the License, or (at
+;;; your option) any later version.
+;;;
+;;; GNU Guix is distributed in the hope that it will be useful, but
+;;; WITHOUT ANY WARRANTY; without even the implied warranty of
+;;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+;;; GNU General Public License for more details.
+;;;
+;;; You should have received a copy of the GNU General Public License
+;;; along with GNU Guix.  If not, see <http://www.gnu.org/licenses/>.
+
+(define-module (gnu packages postgresql)
+  #:use-module ((guix licenses) #:select (x11-style))
+  #:use-module (guix packages)
+  #:use-module (guix download)
+  #:use-module (guix build-system gnu)
+  #:use-module (gnu packages)
+  #:use-module (gnu packages compression)
+  #:use-module (gnu packages readline))
+
+(define-public postgresql
+  (package
+   (name "postgresql")
+   (version "9.3.5")
+   (source (origin
+            (method url-fetch)
+            (uri (string-append "http://ftp.postgresql.org/pub/source/v"
+                                version "/postgresql-" version ".tar.gz"))
+            (sha256
+             (base32
+              "08kga00izykgvnx7hn995wc4zjqslspapaa8z63045p1ya14mr4g"))))
+   (build-system gnu-build-system)
+   (inputs
+    `(("readline" ,readline)
+      ("zlib" ,zlib)))
+   (home-page "http://www.postgresql.org/")
+   (synopsis "Powerful object-relational database system")
+   (description
+    "PostgreSQL is a powerful object-relational database system.  It is fully
+ACID compliant, has full support for foreign keys, joins, views, triggers, and
+stored procedures (in multiple languages).  It includes most SQL:2008 data
+types, including INTEGER, NUMERIC, BOOLEAN, CHAR, VARCHAR, DATE, INTERVAL, and
+TIMESTAMP.  It also supports storage of binary large objects, including
+pictures, sounds, or video.")
+   (license (x11-style "file://COPYRIGHT"))))