--- a/packages/net/bsd_tcpip/current/ChangeLog
+++ b/packages/net/bsd_tcpip/current/ChangeLog
@@ -1,3 +1,8 @@
+2008-02-01  Nick Garnett  <nickg@ecoscentric.com>
+
+	* include/sys/cdefs.h: Add this file so that sysctl.h can be
+	used.
+
 2008-01-06  Shaun Louie <sal@microplex.com>
 
 	* include/net/radix.h

new file mode 100644
--- /dev/null
+++ b/packages/net/bsd_tcpip/current/include/sys/cdefs.h
@@ -0,0 +1,231 @@
+//==========================================================================
+//
+//      include/sys/cdefs.h
+//
+//==========================================================================
+//####BSDCOPYRIGHTBEGIN####
+//
+// -------------------------------------------
+//
+// Portions of this software may have been derived from OpenBSD, 
+// FreeBSD or other sources, and are covered by the appropriate
+// copyright disclaimers included herein.
+//
+// -------------------------------------------
+//
+//####BSDCOPYRIGHTEND####
+//==========================================================================
+
+/*
+ * 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
+ * $FreeBSD: src/sys/sys/cdefs.h,v 1.28.2.4 2001/06/02 17:36:24 obrien Exp $
+ */
+
+#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 to use if it must work in non-ANSI
+ * mode -- there must be no spaces between its arguments, and for nested
+ * __CONCAT's, all the __CONCAT's must be at the left.  __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) */
+
+/*
+ * Compiler-dependent macros to help declare dead (non-returning) and
+ * pure (no side effects) functions, and unused variables.  They are
+ * null except for versions of gcc that are known to support the features
+ * properly (old versions of gcc-2 supported the dead and pure features
+ * in a different (wrong) way).
+ */
+#if __GNUC__ < 2 || __GNUC__ == 2 && __GNUC_MINOR__ < 5
+#define __dead2
+#define __pure2
+#define __unused
+#endif
+#if __GNUC__ == 2 && __GNUC_MINOR__ >= 5 && __GNUC_MINOR__ < 7
+#define __dead2		__attribute__((__noreturn__))
+#define __pure2		__attribute__((__const__))
+#define __unused
+#endif
+#if __GNUC__ == 2 && __GNUC_MINOR__ >= 7 || __GNUC__ == 3
+#define __dead2		__attribute__((__noreturn__))
+#define __pure2		__attribute__((__const__))
+#define __unused	__attribute__((__unused__))
+#endif
+
+/*
+ * Compiler-dependent macros to declare that functions take printf-like
+ * or scanf-like arguments.  They are null except for versions of gcc
+ * that are known to support the features properly (old versions of gcc-2
+ * didn't permit keeping the keywords out of the application namespace).
+ */
+#if __GNUC__ < 2 || __GNUC__ == 2 && __GNUC_MINOR__ < 7
+#define	__printflike(fmtarg, firstvararg)
+#define	__scanflike(fmtarg, firstvararg)
+#else
+#define	__printflike(fmtarg, firstvararg) \
+	    __attribute__((__format__ (__printf__, fmtarg, firstvararg)))
+#define	__scanflike(fmtarg, firstvararg) \
+	    __attribute__((__format__ (__scanf__, fmtarg, firstvararg)))
+#endif
+
+/* Compiler-dependent macros that rely on FreeBSD-specific extensions. */
+#if __FreeBSD_cc_version >= 300001
+#define	__printf0like(fmtarg, firstvararg) \
+	    __attribute__((__format__ (__printf0__, fmtarg, firstvararg)))
+#else
+#define	__printf0like(fmtarg, firstvararg)
+#endif
+
+#ifdef __GNUC__
+#define __strong_reference(sym,aliassym)	\
+	extern __typeof (sym) aliassym __attribute__ ((__alias__ (#sym)));
+#ifdef __ELF__
+#ifdef __STDC__
+#define	__weak_reference(sym,alias)	\
+	__asm__(".weak " #alias);	\
+	__asm__(".equ "  #alias ", " #sym)
+#define	__warn_references(sym,msg)	\
+	__asm__(".section .gnu.warning." #sym);	\
+	__asm__(".asciz \"" msg "\"");	\
+	__asm__(".previous")
+#else
+#define	__weak_reference(sym,alias)	\
+	__asm__(".weak alias");		\
+	__asm__(".equ alias, sym")
+#define	__warn_references(sym,msg)	\
+	__asm__(".section .gnu.warning.sym"); \
+	__asm__(".asciz \"msg\"");	\
+	__asm__(".previous")
+#endif	/* __STDC__ */
+#else	/* !__ELF__ */
+#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	/* __STDC__ */
+#endif	/* __ELF__ */
+#endif	/* __GNUC__ */
+
+#if defined(__GNUC__) && defined(__ELF__)
+#define	__IDSTRING(name,string)	__asm__(".ident\t\"" string "\"")
+#else
+#define	__IDSTRING(name,string)	static const char name[] __unused = string
+#endif
+
+#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_ */