gnu: Add node.

* gnu-system.am (GNU_SYSTEM_MODULES): Add new package.
* gnu/packages/node.scm: New file.

Signed-off-by: Ludovic Courtès <ludo@gnu.org>

gnu-system.am

@@ -171,6 +171,7 @@ GNU_SYSTEM_MODULES =				\
   gnu/packages/ncurses.scm			\
   gnu/packages/netpbm.scm			\
   gnu/packages/nettle.scm			\
+  gnu/packages/node.scm				\
   gnu/packages/noweb.scm			\
   gnu/packages/ocaml.scm			\
   gnu/packages/ocrad.scm			\

gnu/packages/node.scm

@@ -0,0 +1,77 @@
+;;; GNU Guix --- Functional package management for GNU
+;;; Copyright © 2014 Cyrill Schenkel <cyrill.schenkel@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 node)
+  #:use-module ((guix licenses)
+                #:select (expat))
+  #:use-module (gnu packages)
+  #:use-module (gnu packages perl)
+  #:use-module (gnu packages python)
+  #:use-module (gnu packages gcc)
+  #:use-module (gnu packages linux)
+  #:use-module (guix packages)
+  #:use-module (guix derivations)
+  #:use-module (guix download)
+  #:use-module (guix build gnu-build-system)
+  #:use-module (guix build-system gnu))
+
+(define-public node
+  (package
+    (name "node")
+    (version "0.10.29")
+    (source (origin
+              (method url-fetch)
+              (uri (string-append "http://nodejs.org/dist/v" version
+                                  "/node-v" version ".tar.gz"))
+              (sha256
+               (base32
+                "0pdib215ldypc149ad03wlfj0i8fwdfydd4q2hd7ry35yw0rsds7"))))
+    (native-inputs `(("python" ,python-2)
+                     ("perl" ,perl)
+                     ("gcc" ,gcc-4.9)
+                     ("util-linux" ,util-linux)))
+    (build-system gnu-build-system)
+    (arguments
+     `(#:phases
+       (alist-replace
+        'configure
+        ;; Node's configure script is actually a python script, so we can't
+        ;; run it with bash.
+        (lambda* (#:key outputs (configure-flags '()) inputs
+                        #:allow-other-keys)
+          (let* ((prefix (assoc-ref outputs "out"))
+                 (flags `(,(string-append "--prefix=" prefix)
+                          ,@configure-flags)))
+            (format #t "build directory: ~s~%" (getcwd))
+            (format #t "configure flags: ~s~%" flags)
+            ;; Node's configure script expects the CC environment variable to
+            ;; be set.
+            (setenv "CC" (string-append (assoc-ref inputs "gcc") "/bin/gcc"))
+            (zero? (apply system*
+                          (string-append (assoc-ref inputs "python")
+                                         "/bin/python")
+                          "./configure" flags))))
+        %standard-phases)))
+    (synopsis "Evented I/O for V8 javascript")
+    (description "Node.js is a platform built on Chrome's JavaScript runtime
+for easily building fast, scalable network applications.  Node.js uses an
+event-driven, non-blocking I/O model that makes it lightweight and efficient,
+perfect for data-intensive real-time applications that run across distributed
+devices.")
+    (license expat)
+    (home-page "http://nodejs.org/")))