--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/druntime/import/core/sys/posix/sys/ipc.d	Tue Jun 02 17:43:06 2009 +0100
@@ -0,0 +1,104 @@
+/**
+ * D header file for POSIX.
+ *
+ * Copyright: Copyright Sean Kelly 2005 - 2009.
+ * License:   <a href="http://www.boost.org/LICENSE_1_0.txt>Boost License 1.0</a>.
+ * Authors:   Sean Kelly
+ * Standards: The Open Group Base Specifications Issue 6, IEEE Std 1003.1, 2004 Edition
+ *
+ *          Copyright Sean Kelly 2005 - 2009.
+ * Distributed under the Boost Software License, Version 1.0.
+ *    (See accompanying file LICENSE_1_0.txt or copy at
+ *          http://www.boost.org/LICENSE_1_0.txt)
+ */
+module core.sys.posix.sys.ipc;
+
+private import core.sys.posix.config;
+public import core.sys.posix.sys.types; // for uid_t, gid_t, mode_t, key_t
+
+extern (C):
+
+//
+// XOpen (XSI)
+//
+/*
+struct ipc_perm
+{
+    uid_t    uid;
+    gid_t    gid;
+    uid_t    cuid;
+    gid_t    cgid;
+    mode_t   mode;
+}
+
+IPC_CREAT
+IPC_EXCL
+IPC_NOWAIT
+
+IPC_PRIVATE
+
+IPC_RMID
+IPC_SET
+IPC_STAT
+
+key_t ftok(in char*, int);
+*/
+
+version( linux )
+{
+    struct ipc_perm
+    {
+        key_t   __key;
+        uid_t   uid;
+        gid_t   gid;
+        uid_t   cuid;
+        gid_t   cgid;
+        ushort  mode;
+        ushort  __pad1;
+        ushort  __seq;
+        ushort  __pad2;
+        c_ulong __unused1;
+        c_ulong __unused2;
+    }
+
+    enum IPC_CREAT      = 01000;
+    enum IPC_EXCL       = 02000;
+    enum IPC_NOWAIT     = 04000;
+
+    enum key_t IPC_PRIVATE = 0;
+
+    enum IPC_RMID       = 0;
+    enum IPC_SET        = 1;
+    enum IPC_STAT       = 2;
+
+    key_t ftok(in char*, int);
+}
+else version( OSX )
+{
+
+}
+else version( freebsd )
+{
+    struct ipc_perm
+    {
+        ushort cuid;
+        ushort cguid;
+        ushort uid;
+        ushort gid;
+        ushort mode;
+        ushort seq;
+        key_t key;
+    }
+
+    enum IPC_CREAT      = 01000;
+    enum IPC_EXCL       = 02000;
+    enum IPC_NOWAIT     = 04000;
+
+    enum key_t IPC_PRIVATE = 0;
+
+    enum IPC_RMID       = 0;
+    enum IPC_SET        = 1;
+    enum IPC_STAT       = 2;
+
+    key_t ftok(in char*, int);
+}