distro: Change the module name space to (gnu ...).

* distro: Rename to...
* gnu: ... this.  Update module names accordingly.
* Makefile.am: Adjust accordingly.
* po/POTFILES.in: Likewise.
* distro.scm: Search for files under /gnu/packages instead of
  /distro/packages.
* gnu/packages/base.scm (ld-wrapper-boot3): Likewise.

gnu/packages/libjpeg.scm

@@ -0,0 +1,57 @@
+;;; GNU Guix --- Functional package management for GNU
+;;; Copyright © 2013 Andreas Enge <andreas@enge.fr>
+;;;
+;;; 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 libjpeg)
+  #:use-module (distro)
+  #:use-module (guix licenses)
+  #:use-module (guix packages)
+  #:use-module (guix download)
+  #:use-module (guix build-system gnu))
+
+(define-public libjpeg
+  (package
+   (name "libjpeg")
+   (version "9")
+   (source (origin
+            (method url-fetch)
+            (uri (string-append "http://www.ijg.org/files/jpegsrc.v"
+                   version ".tar.gz"))
+            (sha256 (base32
+                     "0dg5wxcx3cw0hal9gvivj97vid9z0s5sb1yvg55hpxmafn9rxqn4"))))
+   (build-system gnu-build-system)
+   (synopsis "Libjpeg, a library for handling JPEG files")
+   (description
+    "Libjpeg implements JPEG image encoding, decoding, and transcoding.
+JPEG is a standardized compression method for full-color and gray-scale
+images.
+The included programs provide conversion between the JPEG format and
+image files in PBMPLUS PPM/PGM, GIF, BMP, and Targa file formats.")
+   (license ijg)
+   (home-page "http://www.ijg.org/")))
+
+(define-public libjpeg-8
+  (package (inherit libjpeg)
+   (name "libjpeg-8")
+   (version "8d")
+   (source (origin
+            (method url-fetch)
+            (uri (string-append "http://www.ijg.org/files/jpegsrc.v"
+                   version ".tar.gz"))
+            (sha256 (base32
+                     "1cz0dy05mgxqdgjf52p54yxpyy95rgl30cnazdrfmw7hfca9n0h0"))))))
+