# include <bstring.h>
# endif /* HAVE_BSTRING_H */
-# if defined(WIN32) && !defined(__CUPS_SSIZE_T_DEFINED)
+# if defined(_WIN32) && !defined(__CUPS_SSIZE_T_DEFINED)
# define __CUPS_SSIZE_T_DEFINED
# include <stddef.h>
/* Windows does not support the ssize_t type, so map it to long... */
typedef long ssize_t; /* @private@ */
-# endif /* WIN32 && !__CUPS_SSIZE_T_DEFINED */
+# endif /* _WIN32 && !__CUPS_SSIZE_T_DEFINED */
/*