Add (guix licenses).

* guix/licenses.scm: New file.
* Makefile.am (MODULES): Add it.

Makefile.am

@@ -28,6 +28,7 @@ MODULES =					\
   guix/derivations.scm				\
   guix/download.scm				\
   guix/gnu-maintenance.scm			\
+  guix/licenses.scm				\
   guix/build-system.scm				\
   guix/build-system/gnu.scm			\
   guix/build-system/trivial.scm			\

guix/licenses.scm

@@ -0,0 +1,171 @@
+;;; Guix --- Nix package management from Guile.         -*- coding: utf-8 -*-
+;;; Copyright (C) 2012 Ludovic Courtès <ludo@gnu.org>
+;;; 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 (guix licenses)
+  #:use-module (srfi srfi-9)
+  #:export (license? license-name license-uri license-comment
+            asl2.0
+            boost1.0
+            bsd-2 bsd-3 bsd-4
+            cddl1.0
+            cpl1.0
+            epl1.0
+            gpl2 gpl2+ gpl3 gpl3+
+            ijg
+            ibmpl1.0
+            lgpl2.1 lgpl2.1+ lgpl3 lgpl3+
+            mpl2.0
+            openssl
+            public-domain
+            x11
+            zlib))
+
+(define-record-type <license>
+  (license name uri comment)
+  license?
+  (name    license-name)
+  (uri     license-uri)
+  (comment license-comment))
+
+;;; Commentary:
+;;;
+;;; Available licenses.
+;;;
+;;; This list is based on these links:
+;;; https://github.com/NixOS/nixpkgs/blob/master/pkgs/lib/licenses.nix
+;;; https://www.gnu.org/licenses/license-list
+;;;
+;;; Code:
+
+(define asl2.0
+  (license "ASL 2.0"
+           "http://directory.fsf.org/wiki/License:Apache2.0"
+           "https://www.gnu.org/licenses/license-list#apache2"))
+
+(define boost1.0
+  (license "Boost 1.0"
+           "http://directory.fsf.org/wiki/License:Boost1.0"
+           "https://www.gnu.org/licenses/license-list#boost"))
+
+(define bsd-2
+  (license "FreeBSD"
+           "http://directory.fsf.org/wiki/License:FreeBSD"
+           "https://www.gnu.org/licenses/license-list#FreeBSD"))
+
+(define bsd-3
+  (license "Modified BSD"
+           "http://directory.fsf.org/wiki/License:BSD_3Clause"
+           "https://www.gnu.org/licenses/license-list#ModifiedBSD"))
+
+(define bsd-4
+  (license "Original BSD"
+           "http://directory.fsf.org/wiki/License:BSD_4Clause"
+           "https://www.gnu.org/licenses/license-list#OriginalBSD"))
+
+(define cddl1.0
+  (license "CDDL 1.0"
+           "http://directory.fsf.org/wiki/License:CDDLv1.0"
+           "https://www.gnu.org/licenses/license-list#CDDL"))
+
+(define cpl1.0
+  (license "CPL 1.0"
+           "http://directory.fsf.org/wiki/License:CPLv1.0"
+           "https://www.gnu.org/licenses/license-list#CommonPublicLicense10"))
+
+(define epl1.0
+  (license "EPL 1.0"
+           "http://directory.fsf.org/wiki/License:EPLv1.0"
+           "https://www.gnu.org/licenses/license-list#EPL"))
+
+(define gpl2
+  (license "GPL 2"
+           "https://www.gnu.org/licenses/old-licenses/gpl-2.0.html"
+           "https://www.gnu.org/licenses/license-list#GPLv2"))
+
+(define gpl2+
+  (license "GPL 2+"
+           "https://www.gnu.org/licenses/old-licenses/gpl-2.0.html"
+           "https://www.gnu.org/licenses/license-list#GPLv2"))
+
+(define gpl3
+  (license "GPL 3"
+           "https://www.gnu.org/licenses/gpl.html"
+           "https://www.gnu.org/licenses/license-list#GNUGPLv3"))
+
+(define gpl3+
+  (license "GPL 3+"
+           "https://www.gnu.org/licenses/gpl.html"
+           "https://www.gnu.org/licenses/license-list#GNUGPLv3"))
+
+(define ijg
+  (license "IJG"
+           "http://directory.fsf.org/wiki/License:JPEG"
+           "https://www.gnu.org/licenses/license-list#ijg"))
+
+(define ibmpl1.0
+  (license "IBMPL 1.0"
+           "http://directory.fsf.org/wiki/License:IBMPLv1.0"
+           "https://www.gnu.org/licenses/license-list#IBMPL"))
+
+(define lgpl2.1
+  (license "LGPL 2.1"
+           "https://www.gnu.org/licenses/old-licenses/lgpl-2.1.html"
+           "https://www.gnu.org/licenses/license-list#LGPLv2.1"))
+
+(define lgpl2.1+
+  (license "LGPL 2.1+"
+           "https://www.gnu.org/licenses/old-licenses/lgpl-2.1.html"
+           "https://www.gnu.org/licenses/license-list#LGPLv2.1"))
+
+(define lgpl3
+  (license "LGPL 3"
+           "https://www.gnu.org/licenses/lgpl.html"
+           "https://www.gnu.org/licenses/license-list#LGPLv3"))
+
+(define lgpl3+
+  (license "LGPL 3+"
+           "https://www.gnu.org/licenses/lgpl.html"
+           "https://www.gnu.org/licenses/license-list#LGPLv3"))
+
+(define mpl2.0
+  (license "MPL 2.0"
+           "http://directory.fsf.org/wiki/License:MPLv2.0"
+           "https://www.gnu.org/licenses/license-list#MPL-2.0"))
+
+(define openssl
+  (license "OpenSSL"
+           "http://directory.fsf.org/wiki/License:OpenSSL"
+           "https://www.gnu.org/licenses/license-list#OpenSSL"))
+
+(define public-domain
+  (license "Public Domain"
+           "http://directory.fsf.org/wiki/License:PublicDomain"
+           "https://www.gnu.org/licenses/license-list#PublicDomain"))
+
+(define x11
+  (license "X11"
+           "http://directory.fsf.org/wiki/License:X11"
+           "https://www.gnu.org/licenses/license-list#X11License"))
+
+(define zlib
+  (license "Zlib"
+           "http://www.gzip.org/zlib/zlib_license.html"
+           "https://www.gnu.org/licenses/license-list#ZLib"))
+
+;;; licenses.scm ends here