gnu: Add lxappearance.

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

gnu-system.am

@@ -193,6 +193,7 @@ GNU_SYSTEM_MODULES =				\
   gnu/packages/lsh.scm				\
   gnu/packages/lsof.scm				\
   gnu/packages/lua.scm				\
+  gnu/packages/lxde.scm				\
   gnu/packages/lxqt.scm				\
   gnu/packages/lynx.scm				\
   gnu/packages/m4.scm				\

gnu/packages/lxde.scm

@@ -0,0 +1,49 @@
+;;; GNU Guix --- Functional package management for GNU
+;;; Copyright © 2015 Mathieu Lirzin <mthl@openmailbox.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 lxde)
+  #:use-module (gnu packages glib)
+  #:use-module (gnu packages gtk)
+  #:use-module (gnu packages pkg-config)
+  #:use-module (guix build-system gnu)
+  #:use-module (guix download)
+  #:use-module ((guix licenses) #:prefix license:)
+  #:use-module (guix packages))
+
+(define-public lxappearance
+  (package
+    (name "lxappearance")
+    (version "0.6.1")
+    (source (origin
+              (method url-fetch)
+              (uri (string-append "mirror://sourceforge/project/lxde"
+                                  "LXAppearance/" name "-" version ".tar.xz"))
+              (sha256
+               (base32
+                "1phnv1b2jdj2vlibjyc9z01izcf3k5zxj8glsaf0i3vh77zqmqq9"))))
+    (build-system gnu-build-system)
+    (inputs `(("gtk+" ,gtk+-2)))
+    (native-inputs `(("intltool"   ,intltool)
+                     ("pkg-config" ,pkg-config)))
+    (synopsis "LXDE GTK+ theme switcher")
+    (description "LXAppearance is a desktop-independent GTK+ theme switcher
+able to change themes, icons, and fonts used by GTK+ applications.")
+    (home-page "http://lxde.org")
+    (license license:gpl2+)))
+
+;;; lxde.scm ends here