Enable embedded perl in urxvt.

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

Formula/rxvt-unicode.rb

@@ -9,14 +9,14 @@ class RxvtUnicode < Formula
 
   def patches
     # Add 256 color support
-    {:p1 => "doc/urxvt-8.2-256color.patch"}
+    {:p1 => ["doc/urxvt-8.2-256color.patch", DATA]}
   end
 
   def install
     system "./configure",
            "--prefix=#{prefix}",
            "--disable-afterimage",
-           "--disable-perl",
+           "--enable-perl",
            "--enable-256-color",
            "--with-term=rxvt-256color",
            "--disable-dependency-tracking"
@@ -27,8 +27,34 @@ class RxvtUnicode < Formula
 
     system "make install"
   end
-  
+
   def caveats
     "This software runs under X11."
   end
 end
+
+__END__
+--- a/configure	2009-12-30 07:13:23.000000000 +0100
++++ b/configure	2010-07-12 20:36:58.000000000 +0200
+@@ -11810,8 +11810,8 @@
+ 
+      save_CXXFLAGS="$CXXFLAGS"
+      save_LIBS="$LIBS"
+-     CXXFLAGS="$CXXFLAGS `$PERL -MExtUtils::Embed -e ccopts`"
+-     LIBS="$LIBS `$PERL -MExtUtils::Embed -e ldopts`"
++     CXXFLAGS="$CXXFLAGS `$PERL -MExtUtils::Embed -e ccopts|sed -E 's/ -arch [^ ]+//g'`"
++     LIBS="$LIBS `$PERL -MExtUtils::Embed -e ldopts|sed -E 's/ -arch [^ ]+//g'`"
+      cat >conftest.$ac_ext <<_ACEOF
+ /* confdefs.h.  */
+ _ACEOF
+@@ -11874,8 +11874,8 @@
+ 
+         IF_PERL=
+         PERL_O=rxvtperl.o
+-        PERLFLAGS="`$PERL -MExtUtils::Embed -e ccopts`"
+-        PERLLIB="`$PERL -MExtUtils::Embed -e ldopts`"
++        PERLFLAGS="`$PERL -MExtUtils::Embed -e ccopts|sed -E 's/ -arch [^ ]+//g'`"
++        PERLLIB="`$PERL -MExtUtils::Embed -e ldopts|sed -E 's/ -arch [^ ]+//g'`"
+         PERLPRIVLIBEXP="`$PERL -MConfig -e 'print $Config{privlibexp}'`"
+      else
+         { { echo "$as_me:$LINENO: error: no, unable to link" >&5