distro: Add GNU Less.

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

Makefile.am

@@ -60,6 +60,7 @@ MODULES =					\
   distro/packages/guile.scm			\
   distro/packages/help2man.scm			\
   distro/packages/ld-wrapper.scm		\
+  distro/packages/less.scm			\
   distro/packages/libffi.scm			\
   distro/packages/libsigsegv.scm		\
   distro/packages/libunistring.scm		\

distro/packages/less.scm

@@ -0,0 +1,50 @@
+;;; Guix --- Nix package management from Guile.         -*- coding: utf-8 -*-
+;;; Copyright (C) 2012 Nikita Karetnikov <nikita@karetnikov.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 less)
+  #:use-module (distro packages ncurses)
+  #:use-module (guix packages)
+  #:use-module (guix download)
+  #:use-module (guix build-system gnu))
+
+(define-public less
+  (package
+    (name "less")
+    (version "451")
+    (source
+     (origin
+      (method url-fetch)
+      (uri (string-append "mirror://gnu/less/less-"
+                          version ".tar.gz"))
+      (sha256
+       (base32
+        "0mszdd9m1dsbg59pav62swg9f87xmjpfspcw2jsazzksciy2is4z"))))
+    (build-system gnu-build-system)
+    (inputs `(("ncurses" ,ncurses)))
+    (home-page "https://www.gnu.org/software/less/")
+    (synopsis
+     "GNU less is a program similar to more, but which allows backward
+movement in the file as well as forward movement")
+    (description
+     "GNU less is a program similar to more, but which allows backward
+movement in the file as well as forward movement. Also, less does not
+have to read the entire input file before starting, so with large input
+files it starts up faster than text editors like vi. Less uses
+termcap (or terminfo on some systems), so it can run on a variety of
+terminals. There is even limited support for hardcopy terminals.")
+    (license "GPLv3+"))) ; some files are under GPLv2+