[bugfix] compiler complains fileno is not declared but used in lex.yy.c.
[bugfix] compiler complains fileno is not declared but used in lex.yy.c.

leavesbnw/picrin,koba-e964/picrin,picrin-scheme/picrin,ktakashi/picrin,picrin-scheme/picrin,koba-e964/picrin,leavesbnw/picrin,ktakashi/picrin,dcurrie/picrin,leavesbnw/picrin,omasanori/picrin,omasanori/picrin,ktakashi/picrin,koba-e964/picrin,dcurrie/picrin