I have been trying to build FreedroidRPG, but it seems to think that i have a scroll wheel. It says SDL_BUTTON_WHEELUP and SDL_BUTTON_WHEELDOWN are undeclared variables, but i am on a laptop so i am guessing that the mouse wheel was not built when i made SDL. The problem starts on line 397 of takeover.c and i cant find a way of fixing it myself (but im not a great programer) can someone please look there and help me find out how to fix it?