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Doug Currie wrote:
> - use lua_replace(L, LUA_ENVIRONINDEX) followed by luaL_register()
> and then, if you are paranoid about leaking your environment, as I am,
> use lua_pushnil(L); lua_replace(L, LUA_ENVIRONINDEX) to hide it

Wrong. The environment must be a valid table. You're storing
random data this way. Turn on assertions for the C API and it'll
complain in lua_replace at api_check(L, ttistable(L->top - 1)).