first commit

nghttp2/third-party/mruby/mrblib/mrblib.rake

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+MRuby.each_target do
+  current_dir = File.dirname(__FILE__)
+  relative_from_root = File.dirname(__FILE__).relative_path_from(MRUBY_ROOT)
+  current_build_dir = "#{build_dir}/#{relative_from_root}"
+
+  self.libmruby_objs << objfile("#{current_build_dir}/mrblib")
+
+  file objfile("#{current_build_dir}/mrblib") => "#{current_build_dir}/mrblib.c"
+  file "#{current_build_dir}/mrblib.c" => [mrbcfile, __FILE__] + Dir.glob("#{current_dir}/*.rb").sort do |t|
+    _, _, *rbfiles = t.prerequisites
+    mkdir_p File.dirname(t.name)
+    open(t.name, 'w') do |f|
+      _pp "GEN", "*.rb", "#{t.name.relative_path}"
+      f.puts File.read("#{current_dir}/init_mrblib.c")
+      mrbc.run f, rbfiles, 'mrblib_irep'
+    end
+  end
+end