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diff --git a/unix/hlib/libc/stdarg-freebsd.h b/unix/hlib/libc/stdarg-freebsd.h
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+/*-
+ * Copyright (c) 2002 David E. O'Brien.  All rights reserved.
+ * Copyright (c) 1991, 1993
+ *	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.
+ *
+ *	@(#)stdarg.h	8.1 (Berkeley) 6/10/93
+ * $FreeBSD: src/sys/i386/include/stdarg.h,v 1.20 2005/03/02 21:33:26 joerg Exp $
+ */
+
+#ifndef _MACHINE_STDARG_H_
+#define	_MACHINE_STDARG_H_
+
+#include <sys/cdefs.h>
+#include <sys/_types.h>
+
+#ifndef _VA_LIST_DECLARED
+#define	_VA_LIST_DECLARED
+typedef	__va_list	va_list;
+#endif
+
+#ifdef __GNUCLIKE_BUILTIN_STDARG
+
+#define	va_start(ap, last) \
+	__builtin_stdarg_start((ap), (last))
+
+#define	va_arg(ap, type) \
+	__builtin_va_arg((ap), type)
+
+#if __ISO_C_VISIBLE >= 1999
+#define	va_copy(dest, src) \
+	__builtin_va_copy((dest), (src))
+#endif
+
+#define	va_end(ap) \
+	__builtin_va_end(ap)
+
+#else	/* !__GNUCLIKE_BUILTIN_STDARG */
+
+#define	__va_size(type) \
+	(((sizeof(type) + sizeof(int) - 1) / sizeof(int)) * sizeof(int))
+
+#ifdef __GNUCLIKE_BUILTIN_NEXT_ARG
+#define va_start(ap, last) \
+	((ap) = (va_list)__builtin_next_arg(last))
+#else	/* !__GNUCLIKE_BUILTIN_NEXT_ARG */
+#define	va_start(ap, last) \
+	((ap) = (va_list)&(last) + __va_size(last))
+#endif	/* __GNUCLIKE_BUILTIN_NEXT_ARG */
+
+#define	va_arg(ap, type) \
+	(*(type *)((ap) += __va_size(type), (ap) - __va_size(type)))
+
+#if __ISO_C_VISIBLE >= 1999
+#define	va_copy(dest, src) \
+	((dest) = (src))
+#endif
+
+#define	va_end(ap)
+
+#endif /* __GNUCLIKE_BUILTIN_STDARG */
+
+#endif /* !_MACHINE_STDARG_H_ */