[Dev-luatex] Did somebody compile luaexpat into LuaTeX yet?

luaexpat would appear to be part of the Kepler project, similar to some existing LuaTeX modules. My first naive attempts to drop luaexpat into the LuaTeX tree were not overly successful. It is not quite clear to me what parts of the build structure (from Kepler and/or Luaforge?) are actually being used in the existing library modules of LuaTeX. Could someone give a brief summary what files I would be expected to change in order to drop this into the tree? Thanks, -- David Kastrup