Fixed compile warning.
--- a/src/audio/SDL_audiodev.c Mon Jul 12 22:08:50 2010 -0700
+++ b/src/audio/SDL_audiodev.c Tue Jul 13 22:22:43 2010 -0700
@@ -28,6 +28,7 @@
#include <fcntl.h>
#include <sys/types.h>
#include <sys/stat.h>
+#include <unistd.h> /* For close() */
#include "SDL_stdinc.h"
#include "SDL_audiodev_c.h"