added rubinius 1.0.0

Signed-off-by: Adam Vandenberg <flangy@gmail.com>

* Don't need ENV.gcc_4_2 if clearing all the flags anyway
* Add --mandir (though no manpages are currently installed)
* Show config.rb on debug or verbose (to help with bug reports)
* Removing j1 doesn't seem to break anything; compiles a bit faster on Mac Pro
* Tweak formatting

Formula/rubinius.rb

@@ -0,0 +1,33 @@
+require 'formula'
+
+class Rubinius < Formula
+  url 'http://asset.rubini.us/rubinius-1.0.0-20100514.tar.gz'
+  version '1.0.0'
+  homepage 'http://rubini.us/'
+  md5 'b05f4e791d3712c5a50b3d210dac6eb0'
+  head 'git://github.com/evanphx/rubinius.git'
+
+  aka "rbx"
+
+  # Do not strip binaries, or else it fails to run.
+  def skip_clean?(path); true end
+
+  def install
+    # Let Rubinius define its own flags; messing with these causes build breaks.
+    %w{CC CXX LD CFLAGS CXXFLAGS CPPFLAGS LDFLAGS}.each { |e| ENV.delete(e) }
+
+    ENV['RELEASE'] = "#{version}" # to fix issues with "path already exists"
+
+    # "--skip-system" means to use the included LLVM
+    system "./configure", "--skip-system",
+                          "--prefix", "#{prefix}",
+                          "--includedir", "#{include}/rubinius",
+                          "--libdir", lib,
+                          "--mandir", man, # For completeness; no manpages exist yet.
+                          "--gemsdir", "#{lib}/rubinius/gems"
+
+    ohai "config.rb", File.open('config.rb').to_a if ARGV.debug? or ARGV.verbose?
+
+    system "/usr/bin/ruby", "-S", "rake", "install"
+  end
+end