diff --git a/headers/posix/sys/ipc.h b/headers/posix/sys/ipc.h
new file mode 100644
index 0000000000..454d729f2e
--- /dev/null
+++ b/headers/posix/sys/ipc.h
@@ -0,0 +1,47 @@
+/*
+ * Copyright 2008, Haiku Inc. All Rights Reserved.
+ * Distributed under the terms of the MIT License.
+ */
+#ifndef _SYS_IPC_H
+#define _SYS_IPC_H
+
+
+#include <sys/types.h>
+#error functionality has not yet been implemented
+
+
+/* Mode bits for msgget(), semget(), and shmget() */
+#define IPC_CREAT	01000	/* create key */
+#define IPC_EXCL	02000	/* fail if key exists */
+#define IPC_NOWAIT	04000	/* do not block */
+
+/* Control commands for msgctl(), semctl(), and shmctl() */
+#define IPC_RMID	0		/* remove identifier */
+#define IPC_SET		1
+#define IPC_STAT	2
+
+/* Private key */
+#define IPC_PRIVATE	0
+
+
+struct ipc_perm {
+	key_t	key;
+	uid_t	uid;			/* owner's user ID */
+	gid_t	gid;			/* owner's group ID */
+	uid_t	cuid;			/* creator's user ID */
+	gid_t	cgid;			/* creator's group ID */
+	mode_t	mode;			/* Read/write permission */
+};
+
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+key_t ftok(const char *path, int id);
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif	/* _SYS_IPC_H */