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diff --git a/c/src/exec/libcsupport/include/sys/cdefs.h b/c/src/exec/libcsupport/include/sys/cdefs.h
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+/*
+ * Copyright (c) 1991, 1993
+ * The Regents of the University of California. All rights reserved.
+ *
+ * This code is derived from software contributed to Berkeley by
+ * Berkeley Software Design, Inc.
+ *
+ * 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.
+ *
+ * @(#)cdefs.h 8.8 (Berkeley) 1/9/95
+ * $Id$
+ */
+
+#ifndef _SYS_CDEFS_H_
+#define _SYS_CDEFS_H_
+
+#if defined(__cplusplus)
+#define __BEGIN_DECLS extern "C" {
+#define __END_DECLS };
+#else
+#define __BEGIN_DECLS
+#define __END_DECLS
+#endif
+
+/*
+ * The __CONCAT macro is used to concatenate parts of symbol names, e.g.
+ * with "#define OLD(foo) __CONCAT(old,foo)", OLD(foo) produces oldfoo.
+ * The __CONCAT macro is a bit tricky -- make sure you don't put spaces
+ * in between its arguments. __CONCAT can also concatenate double-quoted
+ * strings produced by the __STRING macro, but this only works with ANSI C.
+ *
+ * __XSTRING is like __STRING, but it expands any macros in its argument
+ * first. It is only available with ANSI C.
+ */
+#if defined(__STDC__) || defined(__cplusplus)
+#define __P(protos) protos /* full-blown ANSI C */
+#define __CONCAT1(x,y) x ## y
+#define __CONCAT(x,y) __CONCAT1(x,y)
+#define __STRING(x) #x /* stringify without expanding x */
+#define __XSTRING(x) __STRING(x) /* expand x, then stringify */
+
+#define __const const /* define reserved names to standard */
+#define __signed signed
+#define __volatile volatile
+#if defined(__cplusplus)
+#define __inline inline /* convert to C++ keyword */
+#else
+#ifndef __GNUC__
+#define __inline /* delete GCC keyword */
+#endif /* !__GNUC__ */
+#endif /* !__cplusplus */
+
+#else /* !(__STDC__ || __cplusplus) */
+#define __P(protos) () /* traditional C preprocessor */
+#define __CONCAT(x,y) x/**/y
+#define __STRING(x) "x"
+
+#ifndef __GNUC__
+#define __const /* delete pseudo-ANSI C keywords */
+#define __inline
+#define __signed
+#define __volatile
+/*
+ * In non-ANSI C environments, new programs will want ANSI-only C keywords
+ * deleted from the program and old programs will want them left alone.
+ * When using a compiler other than gcc, programs using the ANSI C keywords
+ * const, inline etc. as normal identifiers should define -DNO_ANSI_KEYWORDS.
+ * When using "gcc -traditional", we assume that this is the intent; if
+ * __GNUC__ is defined but __STDC__ is not, we leave the new keywords alone.
+ */
+#ifndef NO_ANSI_KEYWORDS
+#define const /* delete ANSI C keywords */
+#define inline
+#define signed
+#define volatile
+#endif /* !NO_ANSI_KEYWORDS */
+#endif /* !__GNUC__ */
+#endif /* !(__STDC__ || __cplusplus) */
+
+/*
+ * GCC1 and some versions of GCC2 declare dead (non-returning) and
+ * pure (no side effects) functions using "volatile" and "const";
+ * unfortunately, these then cause warnings under "-ansi -pedantic".
+ * GCC2.5 uses a new, peculiar __attribute__((attrs)) style. All of
+ * these work for GNU C++ (modulo a slight glitch in the C++ grammar
+ * in the distribution version of 2.5.5).
+ */
+#if __GNUC__ < 2
+#define __dead
+#define __dead2
+#define __pure
+#define __pure2
+#define __unused
+#define __attribute__(x)
+#endif
+#if __GNUC__ == 2 && __GNUC_MINOR__ < 5
+#define __dead __volatile
+#define __dead2
+#define __pure __const
+#define __pure2
+#define __unused
+#endif
+#if __GNUC__ == 2 && __GNUC_MINOR__ >= 5 && __GNUC_MINOR__ < 7
+#define __dead
+#define __dead2 __attribute__((__noreturn__))
+#define __pure
+#define __pure2 __attribute__((__const__))
+#define __unused
+#endif
+#if __GNUC__ == 2 && __GNUC_MINOR__ >= 7 || __GNUC__ >= 3
+#define __dead
+#define __dead2 __attribute__((__noreturn__))
+#define __pure
+#define __pure2 __attribute__((__const__))
+#define __unused __attribute__((__unused__))
+#endif
+
+#ifdef __GNUC__
+#ifdef __STDC__
+#define __weak_reference(sym,alias) \
+ __asm__(".stabs \"_" #alias "\",11,0,0,0"); \
+ __asm__(".stabs \"_" #sym "\",1,0,0,0")
+#define __warn_references(sym,msg) \
+ __asm__(".stabs \"" msg "\",30,0,0,0"); \
+ __asm__(".stabs \"_" #sym "\",1,0,0,0")
+#else
+#define __weak_reference(sym,alias) \
+ __asm__(".stabs \"_/**/alias\",11,0,0,0"); \
+ __asm__(".stabs \"_/**/sym\",1,0,0,0")
+#define __warn_references(sym,msg) \
+ __asm__(".stabs msg,30,0,0,0"); \
+ __asm__(".stabs \"_/**/sym\",1,0,0,0")
+#endif
+#endif
+
+#define __IDSTRING(name,string) \
+ static const char name[] __attribute__((__unused__)) = string
+
+#ifndef __RCSID
+#define __RCSID(s) __IDSTRING(rcsid,s)
+#endif
+
+#ifndef __RCSID_SOURCE
+#define __RCSID_SOURCE(s) __IDSTRING(rcsid_source,s)
+#endif
+
+#ifndef __COPYRIGHT
+#define __COPYRIGHT(s) __IDSTRING(copyright,s)
+#endif
+
+#endif /* !_SYS_CDEFS_H_ */