luaL_newmetatable 6932 host/minilua.c luaL_newmetatable(L,"FILE*");
luaL_newmetatable   49 lauxlib.h      LUALIB_API int   (luaL_newmetatable) (lua_State *L, const char *tname);
luaL_newmetatable  570 lib_package.c    luaL_newmetatable(L, "_LOADLIB");