--- /dev/null
+++ Libc/Libc-583/include/stddef.h
@@ -0,0 +1,130 @@
+/*
+ * Copyright (c) 2000 Apple Computer, Inc. All rights reserved.
+ *
+ * @APPLE_LICENSE_HEADER_START@
+ * 
+ * This file contains Original Code and/or Modifications of Original Code
+ * as defined in and that are subject to the Apple Public Source License
+ * Version 2.0 (the 'License'). You may not use this file except in
+ * compliance with the License. Please obtain a copy of the License at
+ * http://www.opensource.apple.com/apsl/ and read it before using this
+ * file.
+ * 
+ * The Original Code and all software distributed under the License are
+ * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
+ * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
+ * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
+ * Please see the License for the specific language governing rights and
+ * limitations under the License.
+ * 
+ * @APPLE_LICENSE_HEADER_END@
+ */
+/*	$OpenBSD: stddef.h,v 1.2 1997/09/21 10:45:52 niklas Exp $	*/
+/*	$NetBSD: stddef.h,v 1.4 1994/10/26 00:56:26 cgd Exp $	*/
+
+/*-
+ * Copyright (c) 1990 The Regents of the University of California.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. All advertising materials mentioning features or use of this software
+ *    must display the following acknowledgement:
+ *	This product includes software developed by the University of
+ *	California, Berkeley and its contributors.
+ * 4. Neither the name of the University nor the names of its contributors
+ *    may be used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ *
+ *	@(#)stddef.h	5.5 (Berkeley) 4/3/91
+ */
+
+#if !defined(__STDDEF_H__)
+
+#if !defined(__need_wchar_t) && !defined(__need_size_t) \
+    && !defined(__need_ptrdiff_t) && !defined(__need_NULL) \
+    && !defined(__need_wint_t)
+#define __STDDEF_H__
+#endif /* none of __need_* defined */
+
+#include <_types.h>
+
+#if defined(__STDDEF_H__) || defined(__need_ptrdiff_t)
+#ifndef _PTRDIFF_T
+#define _PTRDIFF_T
+typedef	__darwin_ptrdiff_t	ptrdiff_t;
+#endif /* _PTRDIFF_T */
+#endif /* __STDDEF_H__ || __need_ptrdiff_t */
+
+#if defined(__STDDEF_H__) || defined(__need_size_t)
+#ifndef	_SIZE_T
+#define	_SIZE_T
+/* DO NOT REMOVE THIS COMMENT: fixincludes needs to see:
+ * _GCC_SIZE_T */
+typedef	__darwin_size_t		size_t;
+#endif /* _SIZE_T */
+#endif /* __STDDEF_H__ || __need_size_t */
+
+#if defined(__STDDEF_H__) || defined(__need_wchar_t)
+#ifndef	__cplusplus
+#ifndef	_WCHAR_T
+#define	_WCHAR_T
+typedef	__darwin_wchar_t	wchar_t;
+#endif	/* _WCHAR_T */
+#endif	/* __cplusplus */
+#endif /* __STDDEF_H__ || __need_wchar_t */
+
+#if (defined(__STDDEF_H__) && !defined(_ANSI_SOURCE) && (!defined(_POSIX_C_SOURCE) || defined(_DARWIN_C_SOURCE))) \
+    || defined(__need_wint_t)
+#ifndef	_WINT_T
+#define	_WINT_T
+typedef	__darwin_wint_t		wint_t;
+#endif	/* _WINT_T */
+#endif /* __STDDEF_H__ && !_ANSI_SOURCE && (!_POSIX_C_SOURCE || _DARWIN_C_SOURCE) || __need_wchar_t */
+
+#if defined(__STDDEF_H__) || defined(__need_NULL)
+#ifndef NULL
+#define NULL __DARWIN_NULL
+#endif /* ! NULL */
+#endif /* __STDDEF_H__ || __need_NULL */
+
+#ifdef __STDDEF_H__
+#if defined(__GNUC__) && (__GNUC__ == 3 && __GNUC_MINOR__ >= 5 || __GNUC__ > 3)
+#ifndef __offsetof	/* Deprecated: for source compatability only */
+#define __offsetof(type, field) __builtin_offsetof(type, field)
+#endif
+#define offsetof(type, field) __builtin_offsetof(type, field)
+#else /* ! (gcc >= 3.5) */
+#ifndef __offsetof	/* Deprecated: for source compatability only */
+#define __offsetof(type, field) ((size_t)(&((type *)0)->field))
+#endif
+#define offsetof(type, field) ((size_t)(&((type *)0)->field))
+#endif /* (gcc >= 3.5) */
+#endif /* __STDDEF_H__ */
+
+#endif /* __STDDEF_H__ */
+
+#undef __need_ptrdiff_t
+#undef __need_size_t
+#undef __need_wchar_t
+#undef __need_wint_t
+#undef __need_NULL