# include <fcntl.h>
# include <unistd.h>
-# if (defined _WIN32 || defined __WIN32__) && ! defined __CYGWIN__
+# if defined _WIN32 && ! defined __CYGWIN__
/* Get declarations of the native Windows API functions. */
# define WIN32_LEAN_AND_MEAN
# include <windows.h>
static int
is_open (int fd)
{
-# if (defined _WIN32 || defined __WIN32__) && ! defined __CYGWIN__
+# if defined _WIN32 && ! defined __CYGWIN__
/* On native Windows: The initial state of unassigned standard file
descriptors is that they are open but point to an INVALID_HANDLE_VALUE.
There is no fcntl, and the gnulib replacement fcntl does not support