distro: Add Expat.

* distro/packages/xml.scm: New file.
* Makefile.am (MODULES): Add it.

Makefile.am

@@ -112,6 +112,7 @@ MODULES =					\
   distro/packages/time.scm			\
   distro/packages/wget.scm			\
   distro/packages/which.scm			\
+  distro/packages/xml.scm			\
   distro/packages/zile.scm
 
 

distro/packages/xml.scm

@@ -0,0 +1,44 @@
+;;; GNU Guix --- Functional package management for GNU
+;;; Copyright © 2013 Ludovic Courtès <ludo@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 (distro packages xml)
+  #:use-module ((guix licenses)
+                #:renamer (symbol-prefix-proc 'license:))
+  #:use-module (guix packages)
+  #:use-module (guix download)
+  #:use-module (guix build-system gnu))
+
+(define-public expat
+  (package
+    (name "expat")
+    (version "2.1.0")
+    (source (origin
+             (method url-fetch)
+             (uri (string-append "mirror://sourceforge/expat/expat/"
+                                 version "/expat-" version ".tar.gz"))
+             (sha256
+              (base32
+               "11pblz61zyxh68s5pdcbhc30ha1b2vfjd83aiwfg4vc15x3hadw2"))))
+    (build-system gnu-build-system)
+    (home-page "http://www.libexpat.org/")
+    (synopsis "A stream-oriented XML parser library written in C")
+    (description
+     "Expat is an XML parser library written in C.  It is a
+stream-oriented parser in which an application registers handlers for
+things the parser might find in the XML document (like start tags).")
+    (license license:expat)))