Copy one more header from RosBE-Windows' include directory to the source tree.

This should fix building of "rostests" under Unix-based hosts.

svn path=/trunk/; revision=30202

reactos/include/crt/sys/locking.h

@@ -0,0 +1,31 @@
+/*
+ * locking.h
+ * This file has no copyright assigned and is placed in the Public Domain.
+ * This file is a part of the mingw-runtime package.
+ * No warranty is given; refer to the file DISCLAIMER within the package.
+ *
+ * Constants for the mode parameter of the locking function.
+ *
+ */
+
+#ifndef	_LOCKING_H_
+#define	_LOCKING_H_
+
+/* All the headers include this file. */
+#include <_mingw.h>
+
+#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 */
+
+#ifndef	NO_OLDNAMES
+#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	/* Not NO_OLDNAMES */
+
+#endif	/* Not _LOCKING_H_ */