gnu: Add lua.

* gnu/packages/lua.scm: New file.
* Makefile.am: add it.

Makefile.am

@@ -118,6 +118,7 @@ MODULES =					\
   gnu/packages/lout.scm				\
   gnu/packages/lsh.scm				\
   gnu/packages/lsof.scm				\
+  gnu/packages/lua.scm				\
   gnu/packages/m4.scm				\
   gnu/packages/mailutils.scm			\
   gnu/packages/make-bootstrap.scm		\

gnu/packages/lua.scm

@@ -0,0 +1,63 @@
+;;; GNU Guix --- Functional package management for GNU
+;;; Copyright © 2013 Cyril Roelandt <tipecaml@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 lua)
+  #:use-module (guix licenses)
+  #:use-module (guix packages)
+  #:use-module (guix download)
+  #:use-module (guix build-system gnu)
+  #:use-module (gnu packages)
+  #:use-module (gnu packages readline))
+
+(define-public lua
+  (package
+    (name "lua")
+    (version "5.2.1")
+    (source (origin
+             (method url-fetch)
+             (uri (string-append "http://www.lua.org/ftp/lua-"
+                                 version ".tar.gz"))
+             (sha256
+              (base32 "1rbv2ysq5fdksz7xg07dnrkl8i0gnx855hg4z6b324vng6l4sc34"))))
+    (build-system gnu-build-system)
+    (inputs `(("readline", readline)))
+    (arguments
+     '(#:modules ((guix build gnu-build-system)
+                    (guix build utils)
+                    (srfi srfi-1))
+       #:test-target "test"
+       #:phases (alist-replace
+                 'build
+                 (lambda _ (zero? (system* "make" "linux"))) ; XXX: Other OS.
+                 (alist-replace
+                  'install
+                  (lambda* (#:key outputs #:allow-other-keys)
+                    (let ((out (assoc-ref outputs "out")))
+                      (zero? (system
+                              (string-append "make install INSTALL_TOP=" out)))))
+                  (alist-delete 'configure %standard-phases)))))
+    (home-page "http://www.lua.org/")
+    (synopsis "An embeddable scripting language.")
+    (description
+     "Lua is a powerful, fast, lightweight, embeddable scripting language.  Lua
+combines simple procedural syntax with powerful data description constructs
+based on associative arrays and extensible semantics. Lua is dynamically typed,
+runs by interpreting bytecode for a register-based virtual machine, and has
+automatic memory management with incremental garbage collection, making it ideal
+for configuration, scripting, and rapid prototyping.")
+    (license x11)))