gnu: Add ruby-rake-compiler.

* gnu/packages/ruby.scm (ruby-rake-compiler): New variable.

gnu/packages/ruby.scm

@@ -177,6 +177,36 @@ announcement.")
     (home-page "http://www.zenspider.com/projects/hoe.html")
     (license license:expat)))
 
+(define-public ruby-rake-compiler
+  (package
+    (name "ruby-rake-compiler")
+    (version "0.9.5")
+    (source (origin
+              (method url-fetch)
+              (uri (string-append
+                    "https://github.com/rake-compiler/rake-compiler/archive/v"
+                    version ".tar.gz"))
+              (file-name (string-append name "-" version ".tar.gz"))
+              (sha256
+               (base32
+                "07lk1vl0jqcaqwjjhmg0qshqwcxdyr5kscc9xxm13m03835xgpf3"))))
+    (build-system ruby-build-system)
+    (arguments
+     '(#:tests? #f ; needs cucumber
+       #:phases (modify-phases %standard-phases
+                  (add-before 'build 'remove-cucumber-rake-task
+                    (lambda _
+                      ;; Remove cucumber test file because the
+                      ;; dependencies are not available right now.
+                      (delete-file "tasks/cucumber.rake")))
+                  (replace 'build
+                    (lambda _ (zero? (system* "rake" "gem")))))))
+    (synopsis "Building and packaging helper for Ruby native extensions")
+    (description "Rake-compiler proivides a framework for building and
+packaging native C and Java extensions in Ruby.")
+    (home-page "https://github.com/rake-compiler/rake-compiler")
+    (license license:expat)))
+
 (define-public ruby-i18n
   (package
     (name "ruby-i18n")