First snapshot of FIO for Windows

Signed-off-by: Jens Axboe <jaxboe@fusionio.com>
diff --git a/engines/posixaio.c b/engines/posixaio.c
index f27ad8c..061812e 100644
--- a/engines/posixaio.c
+++ b/engines/posixaio.c
@@ -152,7 +152,7 @@
 	return pd->aio_events[event];
 }
 
-static int fio_posixaio_queue(struct thread_data fio_unused *td,
+static int fio_posixaio_queue(struct thread_data *td,
 			      struct io_u *io_u)
 {
 	struct posixaio_data *pd = td->io_ops->data;