+#ifdef WIN32
+#define _LK_UNLCK 0 /* Unlock */
+#define _LK_LOCK 1 /* Lock */
+#define _LK_NBLCK 2 /* Non-blocking lock */
+#define _LK_RLCK 3 /* Lock for read only */
+#define _LK_NBRLCK 4 /* Non-blocking lock for read only */
+
+
+#define LK_UNLCK _LK_UNLCK
+#define LK_LOCK _LK_LOCK
+#define LK_NBLCK _LK_NBLCK
+#define LK_RLCK _LK_RLCK
+#define LK_NBRLCK _LK_NBRLCK
+#endif
+