--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/misc/monkeypatches.rb	Fri Aug 15 15:43:38 2008 +0000
@@ -0,0 +1,71 @@
+### Monkeypatch to work around the broken Rakefile generated by Mkrf <= 0.2.3
+
+# This fixes:
+# * Some weird unnecessary string interpolation
+# * The :install task doesn't work unless you have RUBYARCHDIR in your environment, instead of
+#   falling back to CONFIG['sitearchdir'].
+# * The :install task created the target install directory every time instead of just
+#   declaring a dependency on a directory task
+
+require 'mkrf/generator'
+
+class Mkrf::Generator
+
+    def rakefile_contents # :nodoc:
+      objext = CONFIG['OBJEXT']
+
+      <<-END_RAKEFILE
+# Generated by mkrf
+require 'rake/clean'
+require 'rbconfig'
+
+include Config
+
+SRC = FileList[#{sources.join(',')}]
+OBJ = SRC.ext('#{objext}')
+CC = '#{@cc}'
+
+ADDITIONAL_OBJECTS = '#{objects}'
+
+LDSHARED = "#{@available.ldshared_string} #{ldshared}"
+
+LIBPATH =  "#{library_path(CONFIG['libdir'])} #{@available.library_paths_compile_string}"
+
+INCLUDES = "#{@available.includes_compile_string}"
+
+LIBS = "#{@available.library_compile_string}"
+
+CFLAGS = "#{cflags} #{defines_compile_string}"
+
+RUBYARCHDIR = ENV["RUBYARCHDIR"] || CONFIG['sitearchdir']
+LIBRUBYARG_SHARED = "#{CONFIG['LIBRUBYARG_SHARED']}"
+EXT = '#{@extension_name}'
+
+CLEAN.include( EXT, '*.#{objext}' )
+CLOBBER.include( 'mkrf.log' )
+
+task :default => EXT
+
+rule '.#{objext}' => '.#{@source_extension}' do |t|
+  sh "\#{CC} \#{CFLAGS} \#{INCLUDES} -c \#{t.source}"
+end
+
+desc "Build this extension"
+file EXT => OBJ do
+  sh "\#{LDSHARED} \#{LIBPATH} #{@available.ld_outfile(@extension_name)} \#{OBJ} \#{ADDITIONAL_OBJECTS} \#{LIBS} \#{LIBRUBYARG_SHARED}"
+end
+
+
+directory RUBYARCHDIR
+
+desc "Install this extension"
+task :install => [EXT, RUBYARCHDIR] do
+  install EXT, RUBYARCHDIR, :verbose => true
+end
+
+#{additional_code}
+      END_RAKEFILE
+    end
+
+end
+