ton of warnings, was mentioned by splint

うー，splint先生が厳し過ぎます．
CFLAGS="-O3 -Wall -Werror"で警告無しでもバカスカ怒られる． :(
日々，是精進也． :P
[Umm, splint so buzzes my stupid code.
That code has no warnings w/ CFLAGS="-O3 -Wall -Werror", though.
All I can do is to do code, anyway. :P]