Fix the problems caused by the fixes to the previous problems caused by the original fix

add_lib_ppl/startup/.__add_lib_ppl.lua

@@ -6,7 +6,11 @@ local function loader(mn)
 		at=shell.dir().."/lib/"..mn..".lua"
 	end
 	if at then
-		return function() return os.run(_ENV,at) end
+		local e=getfenv(1)
+		if e.package and #e.package.loaders==2 then
+			table.insert(e.package.loaders,loader)
+		end
+		return loadfile(at,nil,e)
 	end
 	return false,"\t\tno file '/lib/"..mn..".lua\n\t\tno file '"..shell.dir().."/lib/"..mn..".lua"
 end