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diff --git a/sysvipc/sys/shm.h b/sysvipc/sys/shm.h
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+/* Copyright (C) 1995 Free Software Foundation, Inc.
+This file is part of the GNU C Library.
+Contributed by Ulrich Drepper <drepper@gnu.ai.mit.edu>, August 1995.
+
+The GNU C Library is free software; you can redistribute it and/or
+modify it under the terms of the GNU Library General Public License as
+published by the Free Software Foundation; either version 2 of the
+License, or (at your option) any later version.
+
+The GNU C Library is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+Library General Public License for more details.
+
+You should have received a copy of the GNU Library General Public
+License along with the GNU C Library; see the file COPYING.LIB.  If
+not, write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+Boston, MA 02111-1307, USA.  */
+
+#ifndef _SYS_SHM_H
+#define _SYS_SHM_H
+
+#include <features.h>
+#include <unistd.h>		/* for `getpagesize' declaration */
+#include <sys/types.h>
+
+/* Get common definition of System V style IPC.  */
+#include <sys/ipc.h>
+
+/* Get system dependent definition of `struct shmid_ds' and more.  */
+#include <sys/shm_buf.h>
+
+
+/* Segment low boundary address multiple.  */
+#define SHMLBA		getpagesize ()
+
+__BEGIN_DECLS
+
+/* The following System V style IPC functions implement a shared memory
+   facility.  The definition is found in XPG2.  */
+
+/* Shared memory control operation.  */
+extern int shmctl __P ((int __shmid, int __cmd, struct shmid_ds *__buf));
+
+/* Get shared memory segment.  */
+extern int shmget __P ((key_t __key, int __size, int __shmflg));
+
+/* Attach shared memory segment.  */
+extern int shmat __P ((int __shmid, char *__shmaddr, int __shmflg));
+
+/* Detach shared memory segment.  */
+extern int shmdt __P ((char *__shmaddr));
+
+__END_DECLS
+
+#endif /* sys/shm.h */