Update rrdtool to 1.4.4 and fix Ruby bindings

* Ruby bindings (may) now work against the system Ruby.

Formula/rrdtool.rb

@@ -1,13 +1,13 @@
 require 'formula'
 
 class Rrdtool <Formula
-  url 'http://oss.oetiker.ch/rrdtool/pub/rrdtool-1.4.3.tar.gz'
+  url 'http://oss.oetiker.ch/rrdtool/pub/rrdtool-1.4.4.tar.gz'
   homepage 'http://oss.oetiker.ch/rrdtool/index.en.html'
-  md5 '492cf946c72f85987238faa2c311b7bb'
+  md5 '93ad2fc2e9ddcd7d99c611fe30284a54'
 
   depends_on 'pkg-config'
-  depends_on 'glib'
   depends_on 'gettext'
+  depends_on 'glib'
   depends_on 'libxml2'
   depends_on 'expat'
   depends_on 'pango'
@@ -15,23 +15,64 @@ class Rrdtool <Formula
   depends_on 'intltool'
 
   # Can use lua if it is found, but don't force users to install
-  # depends_on 'lua' => :optional
+  depends_on 'lua' => :optional if ARGV.include? "--lua"
+
+  def patches
+    DATA # Ha-ha, but sleeping is annoying when running configure a lot
+  end
 
   def install
-    system "./configure", "--disable-dependency-tracking",
-                          "--prefix=#{prefix}",
-                          "--enable-perl-site-install",
-                          "--enable-ruby-site-install",
-                          # Installing directly into Homebrew's Python's site-packages
-                          # can break things, so we disable this for now.
-                          # TODO: how to build Python support w/o installing it.
-                          "--disable-python"
+    which_perl = `/usr/bin/which perl`.chomp
+    which_ruby = `/usr/bin/which ruby`.chomp
+
+    opoo "Using system Ruby. RRD module will be installed to /Library/Ruby/..." if which_ruby == "/usr/bin/ruby"
+    opoo "Using system Perl. RRD module will be installed to /Library/Perl/..." if which_perl == "/usr/bin/perl"
+
+    args = ["--disable-dependency-tracking", "--prefix=#{prefix}"]
+    args << "--enable-perl-site-install" if which_perl == "/usr/bin/perl"
+    args << "--enable-ruby-site-install" if which_ruby == "/usr/bin/ruby"
+
+    system "./configure", *args
+
+    # Needed to build proper Ruby bundle
+    if Hardware.is_64_bit? and MACOS_VERSION >= 10.6
+      ENV["ARCHFLAGS"] = "-arch x86_64"
+    else
+      ENV["ARCHFLAGS"] = "-arch i386"
+    end
 
     system "make install"
+    prefix.install "bindings/ruby/test.rb"
   end
 
   def test
-    # Test ruby support; currently fails.
-    system "ruby", "-e", "require 'RRD'"
+    system "ruby", prefix+"test.rb"
+    system "open test.png"
+    puts "You may want to `rm test.{rrd,png}`"
   end
 end
+
+__END__
+diff --git a/configure b/configure
+index 7487ad2..e7b85c1 100755
+--- a/configure
++++ b/configure
+@@ -31663,18 +31663,6 @@ $as_echo_n "checking in... " >&6; }
+ { $as_echo "$as_me:$LINENO: result: and out again" >&5
+ $as_echo "and out again" >&6; }
+ 
+-echo $ECHO_N "ordering CD from http://tobi.oetiker.ch/wish $ECHO_C" 1>&6
+-sleep 1
+-echo $ECHO_N ".$ECHO_C" 1>&6
+-sleep 1
+-echo $ECHO_N ".$ECHO_C" 1>&6
+-sleep 1
+-echo $ECHO_N ".$ECHO_C" 1>&6
+-sleep 1
+-echo $ECHO_N ".$ECHO_C" 1>&6
+-sleep 1
+-{ $as_echo "$as_me:$LINENO: result:  just kidding ;-)" >&5
+-$as_echo " just kidding ;-)" >&6; }
+ echo
+ echo "----------------------------------------------------------------"
+ echo "Config is DONE!"