distro: Add Attr.

* distro/packages/attr.scm: New file.  Dependency on Perl and
  `patch-shebang' added by Ludovic.
* Makefile.am (MODULES): Add it.

Makefile.am

@@ -42,6 +42,7 @@ MODULES =					\
   guix/snix.scm					\
   guix.scm					\
   distro.scm					\
+  distro/packages/attr.scm			\
   distro/packages/autotools.scm			\
   distro/packages/base.scm			\
   distro/packages/bash.scm			\

distro/packages/attr.scm

@@ -0,0 +1,68 @@
+;;; Guix --- Nix package management from Guile.         -*- coding: utf-8 -*-
+;;; Copyright (C) 2012 Nikita Karetnikov <nikita@karetnikov.org>
+;;; Copyright (C) 2012 Ludovic Courtès <ludo@gnu.org>
+;;;
+;;; This file is part of Guix.
+;;;
+;;; 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.
+;;;
+;;; 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 Guix.  If not, see <http://www.gnu.org/licenses/>.
+
+(define-module (distro packages attr)
+  #:use-module (distro packages perl)
+  #:use-module ((distro packages gettext)
+                #:renamer (symbol-prefix-proc 'guix:))
+  #:use-module (guix packages)
+  #:use-module (guix download)
+  #:use-module (guix build-system gnu))
+
+(define-public attr
+  (package
+    (name "attr")
+    (version "2.4.46")
+    (source
+     (origin
+      (method url-fetch)
+      (uri (string-append "mirror://savannah/attr/attr-"
+                          version ".src.tar.gz"))
+      (sha256
+       (base32
+        "07qf6kb2zk512az481bbnsk9jycn477xpva1a726n5pzlzf9pmnw"))))
+    (build-system gnu-build-system)
+    (arguments
+     `(#:phases
+       (alist-replace 'install
+                      (lambda _
+                        (zero? (system* "make"
+                                        "install"
+                                        "install-lib"
+                                        "install-dev")))
+                      (alist-replace 'check
+                                     (lambda _
+                                       (for-each patch-shebang
+                                                 (find-files "test" ".*"))
+                                       (system* "make" "tests" "-C" "test")
+
+                                       ;; XXX: Ignore the test result since
+                                       ;; this is dependent on the underlying
+                                       ;; file system.
+                                       #t)
+                                     %standard-phases))))
+    (inputs `(("perl" ,perl)
+              ("gettext" ,guix:gettext)))
+    (home-page
+     "http://savannah.nongnu.org/projects/attr/")
+    (synopsis
+     "Library and tools for manipulating extended attributes")
+    (description
+     "Portable library and tools for manipulating extended attributes.")
+    (license '("GPLv2+" "LGPLv2.1+"))))