gnu: Add ruby.

Co-authored-by: David Thompson <davet@gnu.org>

* gnu/packages/ruby.scm: New file.
* gnu-system.am (GNU_SYSTEM_MODULES): Add it.
* guix/licenses.scm (ruby): New variable.

gnu-system.am

@@ -214,6 +214,7 @@ GNU_SYSTEM_MODULES =				\
   gnu/packages/readline.scm			\
   gnu/packages/rrdtool.scm			\
   gnu/packages/rsync.scm			\
+  gnu/packages/ruby.scm				\
   gnu/packages/rush.scm				\
   gnu/packages/samba.scm			\
   gnu/packages/scheme.scm			\

gnu/packages/ruby.scm

@@ -0,0 +1,90 @@
+;;; GNU Guix --- Functional package management for GNU
+;;; Copyright © 2014 Pjotr Prins <pjotr.guix@thebird.nl>
+;;; Copyright © 2014 Ludovic Courtès <ludo@gnu.org>
+;;;
+;;; 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 ruby)
+  #:use-module ((guix licenses) #:prefix license:)
+  #:use-module (gnu packages)
+  #:use-module (gnu packages compression)
+  #:use-module (gnu packages readline)
+  #:use-module (gnu packages openssl)
+  #:use-module (gnu packages autotools)
+  #:use-module (gnu packages libffi)
+  #:use-module (gnu packages gdbm)
+  #:use-module (guix packages)
+  #:use-module (guix download)
+  #:use-module (guix utils)
+  #:use-module (guix build-system gnu))
+
+(define-public ruby
+  (package
+    (name "ruby")
+    (version "2.1.3")
+    (source
+     (origin
+       (method url-fetch)
+       (uri (string-append "http://cache.ruby-lang.org/pub/ruby/2.1/ruby-"
+                           version ".tar.gz"))
+       (sha256
+        (base32
+         "00bz6jcbxgnllplk4b9lnyc3w8yd3pz5rn11rmca1s8cn6vvw608"))))
+    (build-system gnu-build-system)
+    (arguments
+     `(#:test-target "test"
+       #:parallel-tests? #f
+       #:phases
+       (alist-cons-after
+        ;; Minor patch:
+        ;; https://bugs.ruby-lang.org/projects/ruby-trunk/repository/revisions/45225/diff/
+        'unpack 'patch-readline
+        (lambda _
+          (substitute* '("ext/readline/readline.c")
+            (("Function ") "rl_hook_func_t ")))
+        (alist-cons-before
+         'configure 'replace-bin-sh
+         (lambda _
+           (substitute* '("Makefile.in"
+                          "ext/pty/pty.c"
+                          "io.c"
+                          "lib/mkmf.rb"
+                          "process.c"
+                          "test/rubygems/test_gem_ext_configure_builder.rb"
+                          "test/rdoc/test_rdoc_parser.rb"
+                          "test/ruby/test_rubyoptions.rb"
+                          "test/ruby/test_process.rb"
+                          "test/ruby/test_system.rb"
+                          "tool/rbinstall.rb")
+             (("/bin/sh") (which "sh"))))
+         %standard-phases))))
+    (inputs
+     `(("readline" ,readline)
+       ("autoconf" ,autoconf)
+       ("openssl" ,openssl)
+       ("libffi" ,libffi)
+       ("gdbm" ,gdbm)
+       ("zlib" ,zlib)))
+    (native-search-paths
+     (list (search-path-specification
+            (variable "GEM_PATH")
+            (directories '("lib/ruby/gems/2.1.3")))))
+    (synopsis "Ruby programming language interpreter")
+    (description "Ruby is a dynamic object-oriented programming language with
+a focus on simplicity and productivity.")
+    (home-page "https://ruby-lang.org")
+    (license license:ruby)))
+

guix/licenses.scm

@@ -42,6 +42,7 @@ (define-module (guix licenses)
             openldap2.8 openssl
             psfl public-domain
             qpl
+            ruby
             vim
             x11 x11-style
             zlib
@@ -255,6 +256,11 @@ (define qpl
            "http://directory.fsf.org/wiki/License:QPLv1.0"
            "http://www.gnu.org/licenses/license-list.html#QPL"))
 
+(define ruby
+  (license "Ruby License"
+           "http://directory.fsf.org/wiki/License:Ruby"
+           "https://www.ruby-lang.org/en/about/license.txt"))
+
 (define vim
   (license "Vim"
            "http://directory.fsf.org/wiki/License:Vim7.2"