if minetest.get_modpath("default") then	
	minetest.override_item("default:sign_wall", {
		on_receive_fields = function(pos, formname, fields, sender)
			--print("Sign at "..minetest.pos_to_string(pos).." got "..dump(fields))
			if not fields.text then return end
			local player_name = sender:get_player_name()
			if minetest.is_protected(pos, player_name) then
				minetest.record_protection_violation(pos, player_name)
				return
			end
			local meta = minetest.get_meta(pos)
			minetest.log("action", (player_name or "") .. " wrote \"" ..
				fields.text .. "\" to sign at " .. minetest.pos_to_string(pos))
			meta:set_string("text", fields.text)
			meta:set_string("infotext", '"' .. fields.text .. '"')
		end,
	})
end