gnu: Add lftp.

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

gnu-system.am

@@ -72,6 +72,7 @@ GNU_SYSTEM_MODULES =				\
   gnu/packages/fonts.scm			\
   gnu/packages/fontutils.scm			\
   gnu/packages/freeipmi.scm			\
+  gnu/packages/ftp.scm				\
   gnu/packages/games.scm			\
   gnu/packages/gawk.scm				\
   gnu/packages/gcal.scm				\

gnu/packages/ftp.scm

@@ -0,0 +1,56 @@
+;;; GNU Guix --- Functional package management for GNU
+;;; Copyright © 2014 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 (gnu packages ftp)
+  #:use-module ((guix licenses) #:select (gpl3+))
+  #:use-module (guix packages)
+  #:use-module (guix download)
+  #:use-module (guix build-system gnu)
+  #:use-module (gnu packages ncurses)
+  #:use-module (gnu packages readline)
+  #:use-module (gnu packages pkg-config)
+  #:use-module (gnu packages gnutls)
+  #:use-module (gnu packages compression))
+
+(define-public lftp
+  (package
+    (name "lftp")
+    (version "4.4.15")
+    (source (origin
+              (method url-fetch)
+              (uri (string-append "http://lftp.yar.ru/ftp/lftp-"
+                                  version ".tar.xz"))
+              (sha256
+               (base32
+                "0s38vc2ij869dwx3i1c7sk96mqv0hknf3cqf86av59rqnix0px3m"))))
+    (build-system gnu-build-system)
+    (native-inputs
+     `(("pkg-config" ,pkg-config)))
+    (inputs
+     `(("zlib" ,zlib)
+       ("readline" ,readline)
+       ("gnutls" ,gnutls)))
+    (home-page "http://lftp.yar.ru/")
+    (synopsis "Command-line file transfer program")
+    (description
+     "LFTP is a sophisticated FTP/HTTP client, and a file transfer program
+supporting a number of network protocols.  Like Bash, it has job control and
+uses the Readline library for input.  It has bookmarks, a built-in mirror
+command, and can transfer several files in parallel.  It was designed with
+reliability in mind.")
+    (license gpl3+)))