--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/src/osdep/unix/flockcyg.h	Mon Sep 14 15:17:45 2009 +0900
@@ -0,0 +1,50 @@
+/* ========================================================================
+ * Copyright 1988-2006 University of Washington
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * 
+ * ========================================================================
+ */
+
+/*
+ * Program:	flock() emulation via fcntl() locking
+ *
+ * Author:	Mark Crispin
+ *		Networks and Distributed Computing
+ *		Computing & Communications
+ *		University of Washington
+ *		Administration Building, AG-44
+ *		Seattle, WA  98195
+ *		Internet: MRC@CAC.Washington.EDU
+ *
+ * Date:	10 April 2001
+ * Last Edited:	30 August 2006
+ */
+
+/* Cygwin does not seem to have the design flaw in fcntl() locking that
+ * most other systems do (see flocksim.c for details).  If some cretin
+ * decides to implement that design flaw, then Cygwin will have to use
+ * flocksim.  Also, we don't test NFS either
+ */
+
+
+#define flock flocksim		/* use ours instead of theirs */
+
+#undef LOCK_SH
+#define LOCK_SH 1		/* shared lock */
+#undef LOCK_EX
+#define LOCK_EX 2		/* exclusive lock */
+#undef LOCK_NB
+#define LOCK_NB 4		/* no blocking */
+#undef LOCK_UN
+#define LOCK_UN 8		/* unlock */
+
+
+/* Function prototypes */
+
+int flocksim (int fd,int operation);