gnu: Add sxiv.

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

gnu-system.am

@@ -252,6 +252,7 @@ GNU_SYSTEM_MODULES =				\
   gnu/packages/ssh.scm				\
   gnu/packages/stalonetray.scm			\
   gnu/packages/swig.scm				\
+  gnu/packages/sxiv.scm				\
   gnu/packages/synergy.scm			\
   gnu/packages/tcl.scm				\
   gnu/packages/tcsh.scm				\

gnu/packages/sxiv.scm

@@ -0,0 +1,61 @@
+;;; GNU Guix --- Functional package management for GNU
+;;; Copyright © 2015 Alex Kost <alezost@gmail.com>
+;;;
+;;; 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 sxiv)
+  #:use-module (guix packages)
+  #:use-module (guix download)
+  #:use-module (guix build-system gnu)
+  #:use-module ((guix licenses) #:prefix license:)
+  #:use-module (gnu packages xorg)
+  #:use-module (gnu packages image)
+  #:use-module (gnu packages photo))
+
+(define-public sxiv
+  (package
+    (name "sxiv")
+    (version "1.3.1")
+    (source (origin
+              (method url-fetch)
+              (uri (string-append
+                    "https://github.com/muennich/sxiv/archive/v"
+                    version ".tar.gz"))
+              (sha256
+               (base32
+                "03hxy5ff7xbs15rhlbpgx8xmvmpjlffp0m4528975hg16sqa2c4s"))))
+    (build-system gnu-build-system)
+    (arguments
+     '(#:tests? #f                      ; no check target
+       #:make-flags (list (string-append "PREFIX=" %output)
+                          "CC=gcc")
+       #:phases (alist-delete
+                 'configure             ; no configure phase
+                 %standard-phases)))
+    (inputs
+     `(("libx11" ,libx11)
+       ("imlib2" ,imlib2)
+       ("giflib" ,giflib)
+       ("libexif" ,libexif)))
+    (home-page "https://github.com/muennich/sxiv")
+    (synopsis "Simple X Image Viewer")
+    (description
+     "sxiv is an alternative to feh and qiv.  Its primary goal is to
+provide the most basic features required for fast image viewing.  It has
+vi key bindings and works nicely with tiling window managers.  Its code
+base should be kept small and clean to make it easy for you to dig into
+it and customize it for your needs.")
+    (license license:gpl2+)))