Index: trunk/libc/include/sys/bsd/cdefs.h
===================================================================
--- trunk/libc/include/sys/bsd/cdefs.h	(revision 3824)
+++ trunk/libc/include/sys/bsd/cdefs.h	(revision 3824)
@@ -0,0 +1,690 @@
+/* $Id: $ */
+/** @file
+ * FreeBSD 9.1.0
+ *
+ * @changed bird: Toolkit compatibility (_CDEFS_H_ and __TCPROTO()).
+ * @changed bird: Check if stuff is defined before accessing it in #if. Stops -Wundef
+ *                from bitching.
+ * @changed bird: __offsetof__ was apparently introduced in gcc 3.4.x.
+ */
+ 
+/*-
+ * 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.
+ * 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
+ * $FreeBSD$
+ */
+
+#ifndef	_SYS_CDEFS_H_
+#define	_SYS_CDEFS_H_
+#define _CDEFS_H_ /* bird: compatability */
+
+#if defined(__cplusplus)
+#define	__BEGIN_DECLS	extern "C" {
+#define	__END_DECLS	}
+#else
+#define	__BEGIN_DECLS
+#define	__END_DECLS
+#endif
+
+/*
+ * This code has been put in place to help reduce the addition of
+ * compiler specific defines in FreeBSD code.  It helps to aid in
+ * having a compiler-agnostic source tree.
+ */
+
+#if defined(__GNUC__) || defined(__INTEL_COMPILER)
+
+#if __GNUC__ >= 3 || defined(__INTEL_COMPILER)
+#define __GNUCLIKE_ASM 3
+#define __GNUCLIKE_MATH_BUILTIN_CONSTANTS
+#else
+#define __GNUCLIKE_ASM 2
+#endif
+#define __GNUCLIKE___TYPEOF 1
+#define __GNUCLIKE___OFFSETOF 1
+#define __GNUCLIKE___SECTION 1
+
+#ifndef __INTEL_COMPILER
+# define __GNUCLIKE_CTOR_SECTION_HANDLING 1
+#endif
+
+#define __GNUCLIKE_BUILTIN_CONSTANT_P 1
+# if defined(__INTEL_COMPILER) && defined(__cplusplus) \
+    && __INTEL_COMPILER < 800
+#  undef __GNUCLIKE_BUILTIN_CONSTANT_P
+# endif
+
+#if (__GNUC_MINOR__ > 95 || __GNUC__ >= 3) && !defined(__INTEL_COMPILER)
+# define __GNUCLIKE_BUILTIN_VARARGS 1
+# define __GNUCLIKE_BUILTIN_STDARG 1
+# define __GNUCLIKE_BUILTIN_VAALIST 1
+#endif
+
+#if defined(__GNUC__)
+# define __GNUC_VA_LIST_COMPATIBILITY 1
+#endif
+
+#ifndef __INTEL_COMPILER
+# define __GNUCLIKE_BUILTIN_NEXT_ARG 1
+# define __GNUCLIKE_MATH_BUILTIN_RELOPS
+#endif
+
+#define __GNUCLIKE_BUILTIN_MEMCPY 1
+
+/* XXX: if __GNUC__ >= 2: not tested everywhere originally, where replaced */
+#define __CC_SUPPORTS_INLINE 1
+#define __CC_SUPPORTS___INLINE 1
+#define __CC_SUPPORTS___INLINE__ 1
+
+#define __CC_SUPPORTS___FUNC__ 1
+#define __CC_SUPPORTS_WARNING 1
+
+#define __CC_SUPPORTS_VARADIC_XXX 1 /* see varargs.h */
+
+#define __CC_SUPPORTS_DYNAMIC_ARRAY_INIT 1
+
+#endif /* __GNUC__ || __INTEL_COMPILER */
+
+/*
+ * Macro to test if we're using a specific version of gcc or later.
+ */
+#if defined(__GNUC__) && !defined(__INTEL_COMPILER)
+#define	__GNUC_PREREQ__(ma, mi)	\
+	(__GNUC__ > (ma) || __GNUC__ == (ma) && __GNUC_MINOR__ >= (mi))
+#else
+#define	__GNUC_PREREQ__(ma, mi)	0
+#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
+#if !(defined(__CC_SUPPORTS___INLINE))
+#define	__inline			/* delete GCC keyword */
+#endif /* ! __CC_SUPPORTS___INLINE */
+#endif /* !__cplusplus */
+
+#else	/* !(__STDC__ || __cplusplus) */
+#define	__P(protos)	()		/* traditional C preprocessor */
+#define	__CONCAT(x,y)	x/**/y
+#define	__STRING(x)	"x"
+
+#if !defined(__CC_SUPPORTS___INLINE)
+#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	/* !__CC_SUPPORTS___INLINE */
+#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 we do not provide an implementation
+ * for a given compiler, let the compile fail if it is told to use
+ * a feature that we cannot live without.
+ */
+#ifdef lint
+#define	__dead2
+#define	__pure2
+#define	__unused
+#define	__packed
+#define	__aligned(x)
+#define	__section(x)
+#else
+#if !__GNUC_PREREQ__(2, 5) && !defined(__INTEL_COMPILER)
+#define	__dead2
+#define	__pure2
+#define	__unused
+#endif
+#if __GNUC__ == 2 && __GNUC_MINOR__ >= 5 && __GNUC_MINOR__ < 7 && !defined(__INTEL_COMPILER)
+#define	__dead2		__attribute__((__noreturn__))
+#define	__pure2		__attribute__((__const__))
+#define	__unused
+/* XXX Find out what to do for __packed, __aligned and __section */
+#endif
+#if __GNUC_PREREQ__(2, 7)
+#define	__dead2		__attribute__((__noreturn__))
+#define	__pure2		__attribute__((__const__))
+#define	__unused	__attribute__((__unused__))
+#define	__used		__attribute__((__used__))
+#define	__packed	__attribute__((__packed__))
+#define	__aligned(x)	__attribute__((__aligned__(x)))
+#define	__section(x)	__attribute__((__section__(x)))
+#endif
+#if defined(__INTEL_COMPILER)
+#define __dead2		__attribute__((__noreturn__))
+#define __pure2		__attribute__((__const__))
+#define __unused	__attribute__((__unused__))
+#define __used		__attribute__((__used__))
+#define __packed	__attribute__((__packed__))
+#define __aligned(x)	__attribute__((__aligned__(x)))
+#define __section(x)	__attribute__((__section__(x)))
+#endif
+#endif
+
+#if !__GNUC_PREREQ__(2, 95)
+#define	__alignof(x)	__offsetof(struct { char __a; x __b; }, __b)
+#endif
+
+/*
+ * Keywords added in C11.
+ */
+#if defined(__cplusplus) && __cplusplus >= 201103L
+#define	_Alignas(e)		alignas(e)
+#define	_Alignof(e)		alignof(e)
+#define	_Noreturn		[[noreturn]]
+#define	_Static_assert(e, s)	static_assert(e, s)
+/* FIXME: change this to thread_local when clang in base supports it */
+#define	_Thread_local		__thread
+#elif defined(__STDC_VERSION__) && __STDC_VERSION__ >= 201112L
+/* Do nothing.  They are language keywords. */
+#else
+/* Not supported.  Implement them using our versions. */
+#define	_Alignas(x)		__aligned(x)
+#define	_Alignof(x)		__alignof(x)
+#define	_Noreturn		__dead2
+#define	_Thread_local		__thread
+#ifdef __COUNTER__
+#define	_Static_assert(x, y)	__Static_assert(x, __COUNTER__)
+#define	__Static_assert(x, y)	___Static_assert(x, y)
+#define	___Static_assert(x, y)	typedef char __assert_ ## y[(x) ? 1 : -1]
+#else
+#define	_Static_assert(x, y)	struct __hack
+#endif
+#endif
+
+/*
+ * Emulation of C11 _Generic().  Unlike the previously defined C11
+ * keywords, it is not possible to implement this using exactly the same
+ * syntax.  Therefore implement something similar under the name
+ * __generic().  Unlike _Generic(), this macro can only distinguish
+ * between a single type, so it requires nested invocations to
+ * distinguish multiple cases.
+ */
+
+#if defined(__STDC_VERSION__) && __STDC_VERSION__ >= 201112L
+#define	__generic(expr, t, yes, no)					\
+	_Generic(expr, t: yes, default: no)
+#elif __GNUC_PREREQ__(3, 1) && !defined(__cplusplus)
+#define	__generic(expr, t, yes, no)					\
+	__builtin_choose_expr(						\
+	    __builtin_types_compatible_p(__typeof(expr), t), yes, no)
+#endif
+
+#if __GNUC_PREREQ__(2, 96)
+#define	__malloc_like	__attribute__((__malloc__))
+#define	__pure		__attribute__((__pure__))
+#else
+#define	__malloc_like
+#define	__pure
+#endif
+
+#if __GNUC_PREREQ__(3, 1) || (defined(__INTEL_COMPILER) && __INTEL_COMPILER >= 800)
+#define	__always_inline	__attribute__((__always_inline__))
+#else
+#define	__always_inline
+#endif
+
+#if __GNUC_PREREQ__(3, 1)
+#define	__noinline	__attribute__ ((__noinline__))
+#else
+#define	__noinline
+#endif
+
+#if __GNUC_PREREQ__(3, 3)
+#define __nonnull(x)	__attribute__((__nonnull__(x)))
+#else
+#define __nonnull(x)
+#endif
+
+#if __GNUC_PREREQ__(3, 4)
+#define	__fastcall	__attribute__((__fastcall__))
+#else
+#define	__fastcall
+#endif
+
+#if __GNUC_PREREQ__(4, 1)
+#define	__returns_twice	__attribute__((__returns_twice__))
+#else
+#define	__returns_twice
+#endif
+
+/* XXX: should use `#if __STDC_VERSION__ < 199901'. */
+#if !__GNUC_PREREQ__(2, 7) && !defined(__INTEL_COMPILER) && !defined(__WATCOMC__) /* bird: Watcom */
+#define	__func__	NULL
+#endif
+
+#if (defined(__INTEL_COMPILER) || (defined(__GNUC__) && __GNUC__ >= 2)) && !defined(__STRICT_ANSI__) || __STDC_VERSION__ >= 199901
+#define	__LONG_LONG_SUPPORTED
+#endif
+
+/* C++11 exposes a load of C99 stuff */
+#if defined(__cplusplus) && __cplusplus >= 201103L
+#define	__LONG_LONG_SUPPORTED
+#ifndef	__STDC_LIMIT_MACROS
+#define	__STDC_LIMIT_MACROS
+#endif
+#ifndef	__STDC_CONSTANT_MACROS
+#define	__STDC_CONSTANT_MACROS
+#endif
+#endif
+
+/*
+ * GCC 2.95 provides `__restrict' as an extension to C90 to support the
+ * C99-specific `restrict' type qualifier.  We happen to use `__restrict' as
+ * a way to define the `restrict' type qualifier without disturbing older
+ * software that is unaware of C99 keywords.
+ */
+#if !(__GNUC__ == 2 && __GNUC_MINOR__ == 95)
+#if !defined(__STDC_VERSION__) || __STDC_VERSION__ < 199901 || defined(lint)
+#define	__restrict
+#else
+#define	__restrict	restrict
+#endif
+#endif
+
+/*
+ * GNU C version 2.96 adds explicit branch prediction so that
+ * the CPU back-end can hint the processor and also so that
+ * code blocks can be reordered such that the predicted path
+ * sees a more linear flow, thus improving cache behavior, etc.
+ *
+ * The following two macros provide us with a way to utilize this
+ * compiler feature.  Use __predict_true() if you expect the expression
+ * to evaluate to true, and __predict_false() if you expect the
+ * expression to evaluate to false.
+ *
+ * A few notes about usage:
+ *
+ *	* Generally, __predict_false() error condition checks (unless
+ *	  you have some _strong_ reason to do otherwise, in which case
+ *	  document it), and/or __predict_true() `no-error' condition
+ *	  checks, assuming you want to optimize for the no-error case.
+ *
+ *	* Other than that, if you don't know the likelihood of a test
+ *	  succeeding from empirical or other `hard' evidence, don't
+ *	  make predictions.
+ *
+ *	* These are meant to be used in places that are run `a lot'.
+ *	  It is wasteful to make predictions in code that is run
+ *	  seldomly (e.g. at subsystem initialization time) as the
+ *	  basic block reordering that this affects can often generate
+ *	  larger code.
+ */
+#if __GNUC_PREREQ__(2, 96)
+#define __predict_true(exp)     __builtin_expect((exp), 1)
+#define __predict_false(exp)    __builtin_expect((exp), 0)
+#else
+#define __predict_true(exp)     (exp)
+#define __predict_false(exp)    (exp)
+#endif
+
+#if __GNUC_PREREQ__(4, 2)
+#define	__hidden	__attribute__((__visibility__("hidden")))
+#define	__exported	__attribute__((__visibility__("default")))
+#else
+#define	__hidden
+#define	__exported
+#endif
+
+/*
+ * We define this here since <stddef.h>, <sys/queue.h>, and <sys/types.h>
+ * require it.
+ */
+#if __GNUC_PREREQ__(4, 1)
+#define __offsetof(type, field)	 __builtin_offsetof(type, field)
+#else
+#if !defined(__cplusplus) || !__GNUC_PREREQ__(3,4) /* bird: __offsetof__ was introduced in 3.4.x.  */
+#define	__offsetof(type, field)	\
+	((__size_t)(__uintptr_t)((const volatile void *)&((type *)0)->field))
+#else
+#define __offsetof(type, field)					\
+  (__offsetof__ (reinterpret_cast <__size_t>			\
+                 (&reinterpret_cast <const volatile char &>	\
+                  (static_cast<type *> (0)->field))))
+#endif
+#endif
+#define	__rangeof(type, start, end) \
+	(__offsetof(type, end) - __offsetof(type, start))
+
+/*
+ * 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_PREREQ__(2, 7) && !defined(__INTEL_COMPILER)
+#define	__printflike(fmtarg, firstvararg)
+#define	__scanflike(fmtarg, firstvararg)
+#define	__format_arg(fmtarg)
+#define	__strfmonlike(fmtarg, firstvararg)
+#define	__strftimelike(fmtarg, firstvararg)
+#else
+#define	__printflike(fmtarg, firstvararg) \
+	    __attribute__((__format__ (__printf__, fmtarg, firstvararg)))
+#define	__scanflike(fmtarg, firstvararg) \
+	    __attribute__((__format__ (__scanf__, fmtarg, firstvararg)))
+#define	__format_arg(fmtarg)	__attribute__((__format_arg__ (fmtarg)))
+#define	__strfmonlike(fmtarg, firstvararg) \
+	    __attribute__((__format__ (__strfmon__, fmtarg, firstvararg)))
+#define	__strftimelike(fmtarg, firstvararg) \
+	    __attribute__((__format__ (__strftime__, fmtarg, firstvararg)))
+#endif
+
+/* Compiler-dependent macros that rely on FreeBSD-specific extensions. */
+#ifdef __FreeBSD_cc_version                 /* bird */
+#if __FreeBSD_cc_version >= 300001 && defined(__GNUC__) && !defined(__INTEL_COMPILER)
+#define	__printf0like(fmtarg, firstvararg) \
+	    __attribute__((__format__ (__printf0__, fmtarg, firstvararg)))
+#else
+#define	__printf0like(fmtarg, firstvararg)
+#endif
+#else                                       /* bird */
+#define	__printf0like(fmtarg, firstvararg)  /* bird */
+#endif                                      /* bird */
+
+#if 0 /* bird - mostly ELF specific, so skip it. */
+#if defined(__GNUC__) || defined(__INTEL_COMPILER)
+#ifndef __INTEL_COMPILER
+#define	__strong_reference(sym,aliassym)	\
+	extern __typeof (sym) aliassym __attribute__ ((__alias__ (#sym)))
+#endif
+#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")
+#define	__sym_compat(sym,impl,verid)	\
+	__asm__(".symver " #impl ", " #sym "@" #verid)
+#define	__sym_default(sym,impl,verid)	\
+	__asm__(".symver " #impl ", " #sym "@@" #verid)
+#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")
+#define	__sym_compat(sym,impl,verid)	\
+	__asm__(".symver impl, sym@verid")
+#define	__sym_default(impl,sym,verid)	\
+	__asm__(".symver impl, sym@@verid")
+#endif	/* __STDC__ */
+#endif	/* __GNUC__ || __INTEL_COMPILER */
+#else                                                                       /* bird */
+#define	__strong_reference(sym,aliassym)	\
+	extern __typeof (sym) aliassym __attribute__ ((__alias__ (#sym)));  /* bird */
+#endif                                                                      /* bird */
+
+#define	__GLOBL1(sym)	__asm__(".globl " #sym)
+#define	__GLOBL(sym)	__GLOBL1(sym)
+
+#if 0 /* defined(__GNUC__) || defined(__INTEL_COMPILER) - bird: ELF specific. */
+#define	__IDSTRING(name,string)	__asm__(".ident\t\"" string "\"")
+#else
+/*
+ * The following definition might not work well if used in header files,
+ * but it should be better than nothing.  If you want a "do nothing"
+ * version, then it should generate some harmless declaration, such as:
+ *    #define __IDSTRING(name,string)	struct __hack
+ */
+#define	__IDSTRING(name,string)	static const char name[] __unused = string
+#endif
+
+/*
+ * Embed the rcs id of a source file in the resulting library.  Note that in
+ * more recent ELF binutils, we use .ident allowing the ID to be stripped.
+ * Usage:
+ *	__FBSDID("$FreeBSD$");
+ */
+#ifndef	__FBSDID
+#if !defined(lint) && !defined(STRIP_FBSDID)
+#define	__FBSDID(s)	__IDSTRING(__CONCAT(__rcsid_,__LINE__),s)
+#else
+#define	__FBSDID(s)	struct __hack
+#endif
+#endif
+
+#ifndef	__RCSID
+#ifndef	NO__RCSID
+#define	__RCSID(s)	__IDSTRING(__CONCAT(__rcsid_,__LINE__),s)
+#else
+#define	__RCSID(s)	struct __hack
+#endif
+#endif
+
+#ifndef	__RCSID_SOURCE
+#ifndef	NO__RCSID_SOURCE
+#define	__RCSID_SOURCE(s)	__IDSTRING(__CONCAT(__rcsid_source_,__LINE__),s)
+#else
+#define	__RCSID_SOURCE(s)	struct __hack
+#endif
+#endif
+
+#ifndef	__SCCSID
+#ifndef	NO__SCCSID
+#define	__SCCSID(s)	__IDSTRING(__CONCAT(__sccsid_,__LINE__),s)
+#else
+#define	__SCCSID(s)	struct __hack
+#endif
+#endif
+
+#ifndef	__COPYRIGHT
+#ifndef	NO__COPYRIGHT
+#define	__COPYRIGHT(s)	__IDSTRING(__CONCAT(__copyright_,__LINE__),s)
+#else
+#define	__COPYRIGHT(s)	struct __hack
+#endif
+#endif
+
+#ifndef	__DECONST
+#define	__DECONST(type, var)	((type)(__uintptr_t)(const void *)(var))
+#endif
+
+#ifndef	__DEVOLATILE
+#define	__DEVOLATILE(type, var)	((type)(__uintptr_t)(volatile void *)(var))
+#endif
+
+#ifndef	__DEQUALIFY
+#define	__DEQUALIFY(type, var)	((type)(__uintptr_t)(const volatile void *)(var))
+#endif
+
+/*-
+ * The following definitions are an extension of the behavior originally
+ * implemented in <sys/_posix.h>, but with a different level of granularity.
+ * POSIX.1 requires that the macros we test be defined before any standard
+ * header file is included.
+ *
+ * Here's a quick run-down of the versions:
+ *  defined(_POSIX_SOURCE)		1003.1-1988
+ *  _POSIX_C_SOURCE == 1		1003.1-1990
+ *  _POSIX_C_SOURCE == 2		1003.2-1992 C Language Binding Option
+ *  _POSIX_C_SOURCE == 199309		1003.1b-1993
+ *  _POSIX_C_SOURCE == 199506		1003.1c-1995, 1003.1i-1995,
+ *					and the omnibus ISO/IEC 9945-1: 1996
+ *  _POSIX_C_SOURCE == 200112		1003.1-2001
+ *  _POSIX_C_SOURCE == 200809		1003.1-2008
+ *
+ * In addition, the X/Open Portability Guide, which is now the Single UNIX
+ * Specification, defines a feature-test macro which indicates the version of
+ * that specification, and which subsumes _POSIX_C_SOURCE.
+ *
+ * Our macros begin with two underscores to avoid namespace screwage.
+ */
+
+/* Deal with IEEE Std. 1003.1-1990, in which _POSIX_C_SOURCE == 1. */
+#if defined(_POSIX_C_SOURCE) && _POSIX_C_SOURCE == 1
+#undef _POSIX_C_SOURCE		/* Probably illegal, but beyond caring now. */
+#define	_POSIX_C_SOURCE		199009
+#endif
+
+/* Deal with IEEE Std. 1003.2-1992, in which _POSIX_C_SOURCE == 2. */
+#if defined(_POSIX_C_SOURCE) && _POSIX_C_SOURCE == 2
+#undef _POSIX_C_SOURCE
+#define	_POSIX_C_SOURCE		199209
+#endif
+
+/* Deal with various X/Open Portability Guides and Single UNIX Spec. */
+#ifdef _XOPEN_SOURCE
+#if _XOPEN_SOURCE - 0 >= 700
+#define	__XSI_VISIBLE		700
+#undef _POSIX_C_SOURCE
+#define	_POSIX_C_SOURCE		200809
+#elif _XOPEN_SOURCE - 0 >= 600
+#define	__XSI_VISIBLE		600
+#undef _POSIX_C_SOURCE
+#define	_POSIX_C_SOURCE		200112
+#elif _XOPEN_SOURCE - 0 >= 500
+#define	__XSI_VISIBLE		500
+#undef _POSIX_C_SOURCE
+#define	_POSIX_C_SOURCE		199506
+#endif
+#endif
+
+/*
+ * Deal with all versions of POSIX.  The ordering relative to the tests above is
+ * important.
+ */
+#if defined(_POSIX_SOURCE) && !defined(_POSIX_C_SOURCE)
+#define	_POSIX_C_SOURCE		198808
+#endif
+#ifdef _POSIX_C_SOURCE
+#if _POSIX_C_SOURCE >= 200809
+#define	__POSIX_VISIBLE		200809
+#define	__ISO_C_VISIBLE		1999
+#elif _POSIX_C_SOURCE >= 200112
+#define	__POSIX_VISIBLE		200112
+#define	__ISO_C_VISIBLE		1999
+#elif _POSIX_C_SOURCE >= 199506
+#define	__POSIX_VISIBLE		199506
+#define	__ISO_C_VISIBLE		1990
+#elif _POSIX_C_SOURCE >= 199309
+#define	__POSIX_VISIBLE		199309
+#define	__ISO_C_VISIBLE		1990
+#elif _POSIX_C_SOURCE >= 199209
+#define	__POSIX_VISIBLE		199209
+#define	__ISO_C_VISIBLE		1990
+#elif _POSIX_C_SOURCE >= 199009
+#define	__POSIX_VISIBLE		199009
+#define	__ISO_C_VISIBLE		1990
+#else
+#define	__POSIX_VISIBLE		198808
+#define	__ISO_C_VISIBLE		0
+#endif /* _POSIX_C_SOURCE */
+#else
+/*-
+ * Deal with _ANSI_SOURCE:
+ * If it is defined, and no other compilation environment is explicitly
+ * requested, then define our internal feature-test macros to zero.  This
+ * makes no difference to the preprocessor (undefined symbols in preprocessing
+ * expressions are defined to have value zero), but makes it more convenient for
+ * a test program to print out the values.
+ *
+ * If a program mistakenly defines _ANSI_SOURCE and some other macro such as
+ * _POSIX_C_SOURCE, we will assume that it wants the broader compilation
+ * environment (and in fact we will never get here).
+ */
+#if defined(_ANSI_SOURCE)	/* Hide almost everything. */
+#define	__POSIX_VISIBLE		0
+#define	__XSI_VISIBLE		0
+#define	__BSD_VISIBLE		0
+#define	__ISO_C_VISIBLE		1990
+#elif defined(_C99_SOURCE)	/* Localism to specify strict C99 env. */
+#define	__POSIX_VISIBLE		0
+#define	__XSI_VISIBLE		0
+#define	__BSD_VISIBLE		0
+#define	__ISO_C_VISIBLE		1999
+#else				/* Default environment: show everything. */
+#define	__POSIX_VISIBLE		200809
+#define	__XSI_VISIBLE		700
+#define	__BSD_VISIBLE		1
+#define	__ISO_C_VISIBLE		1999
+#endif
+#endif
+
+#ifndef	__has_feature
+#define	__has_feature(x) 0
+#endif
+#ifndef	__has_include
+#define	__has_include(x) 0
+#endif
+#ifndef	__has_builtin
+#define	__has_builtin(x) 0
+#endif
+
+#if defined(__mips) || defined(__powerpc64__) || defined(__arm__)
+#define __NO_TLS 1
+#endif
+
+#endif /* !_SYS_CDEFS_H_ */
Index: trunk/libc/include/sys/cdefs.h
===================================================================
--- trunk/libc/include/sys/cdefs.h	(revision 3823)
+++ 	(revision )
@@ -1,763 +1,0 @@
-/* $Id: $ */
-/** @file
- * FreeBSD 9.1.0
- *
- * @changed bird: Toolkit compatibility (_CDEFS_H_ and __TCPROTO()).
- * @changed bird: Check if stuff is defined before accessing it in #if. Stops -Wundef
- *                from bitching.
- * @changed bird: __offsetof__ was apparently introduced in gcc 3.4.x.
- */
- 
-/*-
- * 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.
- * 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
- * $FreeBSD$
- */
-
-#ifndef	_SYS_CDEFS_H_
-#define	_SYS_CDEFS_H_
-#define _CDEFS_H_ /* bird: compatability */
-
-#if defined(__cplusplus)
-#define	__BEGIN_DECLS	extern "C" {
-#define	__END_DECLS	}
-#else
-#define	__BEGIN_DECLS
-#define	__END_DECLS
-#endif
-
-/*
- * This code has been put in place to help reduce the addition of
- * compiler specific defines in FreeBSD code.  It helps to aid in
- * having a compiler-agnostic source tree.
- */
-
-#if defined(__GNUC__) || defined(__INTEL_COMPILER)
-
-#if __GNUC__ >= 3 || defined(__INTEL_COMPILER)
-#define __GNUCLIKE_ASM 3
-#define __GNUCLIKE_MATH_BUILTIN_CONSTANTS
-#else
-#define __GNUCLIKE_ASM 2
-#endif
-#define __GNUCLIKE___TYPEOF 1
-#define __GNUCLIKE___OFFSETOF 1
-#define __GNUCLIKE___SECTION 1
-
-#ifndef __INTEL_COMPILER
-# define __GNUCLIKE_CTOR_SECTION_HANDLING 1
-#endif
-
-#define __GNUCLIKE_BUILTIN_CONSTANT_P 1
-# if defined(__INTEL_COMPILER) && defined(__cplusplus) \
-    && __INTEL_COMPILER < 800
-#  undef __GNUCLIKE_BUILTIN_CONSTANT_P
-# endif
-
-#if (__GNUC_MINOR__ > 95 || __GNUC__ >= 3) && !defined(__INTEL_COMPILER)
-# define __GNUCLIKE_BUILTIN_VARARGS 1
-# define __GNUCLIKE_BUILTIN_STDARG 1
-# define __GNUCLIKE_BUILTIN_VAALIST 1
-#endif
-
-#if defined(__GNUC__)
-# define __GNUC_VA_LIST_COMPATIBILITY 1
-#endif
-
-#ifndef __INTEL_COMPILER
-# define __GNUCLIKE_BUILTIN_NEXT_ARG 1
-# define __GNUCLIKE_MATH_BUILTIN_RELOPS
-#endif
-
-#define __GNUCLIKE_BUILTIN_MEMCPY 1
-
-/* XXX: if __GNUC__ >= 2: not tested everywhere originally, where replaced */
-#define __CC_SUPPORTS_INLINE 1
-#define __CC_SUPPORTS___INLINE 1
-#define __CC_SUPPORTS___INLINE__ 1
-
-#define __CC_SUPPORTS___FUNC__ 1
-#define __CC_SUPPORTS_WARNING 1
-
-#define __CC_SUPPORTS_VARADIC_XXX 1 /* see varargs.h */
-
-#define __CC_SUPPORTS_DYNAMIC_ARRAY_INIT 1
-
-#endif /* __GNUC__ || __INTEL_COMPILER */
-
-/*
- * Macro to test if we're using a specific version of gcc or later.
- */
-#if defined(__GNUC__) && !defined(__INTEL_COMPILER)
-#define	__GNUC_PREREQ__(ma, mi)	\
-	(__GNUC__ > (ma) || __GNUC__ == (ma) && __GNUC_MINOR__ >= (mi))
-#else
-#define	__GNUC_PREREQ__(ma, mi)	0
-#endif
-
-/*
- * Compiler checks for MSC and OpenWatcom. (bird)
- */
-#ifdef __WATCOMC__
-# define __KLIBC_WATCOM_PREREQ(ma, mi)  (__WATCOMC__ >= (ma)*10 + (mi))
-#else
-# define __KLIBC_WATCOM_PREREQ(ma, mi)  0
-#endif
-
-#ifdef __WATCOMC__
-# define __KLIBC_WATCOM_C99_PREREQ(ma, mi) (__KLIBC_WATCOM_PREREQ(ma, mi) && __STDC_VERSION__ >= 199901L)
-#else
-# define __KLIBC_WATCOM_C99_PREREQ(ma, mi)  0
-#endif
-
-#ifdef _MSC_VER
-# define __KLIBC_MSVC_PREREQ(ma, mi)    (_MSC_VER >= (ma)*100 + (mi)*10)
-#else
-# define __KLIBC_MSVC_PREREQ(ma, mi)    0
-#endif
-/* bird - end: Compiler checks for MSC and OpenWatcom. */
-
-/*
- * 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
-#if !(defined(__CC_SUPPORTS___INLINE))
-#define	__inline			/* delete GCC keyword */
-#endif /* ! __CC_SUPPORTS___INLINE */
-#endif /* !__cplusplus */
-
-#else	/* !(__STDC__ || __cplusplus) */
-#define	__P(protos)	()		/* traditional C preprocessor */
-#define	__CONCAT(x,y)	x/**/y
-#define	__STRING(x)	"x"
-
-#if !defined(__CC_SUPPORTS___INLINE)
-#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	/* !__CC_SUPPORTS___INLINE */
-#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 we do not provide an implementation
- * for a given compiler, let the compile fail if it is told to use
- * a feature that we cannot live without.
- */
-#ifdef lint
-#define	__dead2
-#define	__pure2
-#define	__unused
-#define	__packed
-#define	__aligned(x)
-#define	__section(x)
-#else
-#if !__GNUC_PREREQ__(2, 5) && !defined(__INTEL_COMPILER)
-#define	__dead2
-#define	__pure2
-#define	__unused
-#endif
-#if __GNUC__ == 2 && __GNUC_MINOR__ >= 5 && __GNUC_MINOR__ < 7 && !defined(__INTEL_COMPILER)
-#define	__dead2		__attribute__((__noreturn__))
-#define	__pure2		__attribute__((__const__))
-#define	__unused
-/* XXX Find out what to do for __packed, __aligned and __section */
-#endif
-#if __GNUC_PREREQ__(2, 7)
-#define	__dead2		__attribute__((__noreturn__))
-#define	__pure2		__attribute__((__const__))
-#define	__unused	__attribute__((__unused__))
-#define	__used		__attribute__((__used__))
-#define	__packed	__attribute__((__packed__))
-#define	__aligned(x)	__attribute__((__aligned__(x)))
-#define	__section(x)	__attribute__((__section__(x)))
-#endif
-#if defined(__INTEL_COMPILER)
-#define __dead2		__attribute__((__noreturn__))
-#define __pure2		__attribute__((__const__))
-#define __unused	__attribute__((__unused__))
-#define __used		__attribute__((__used__))
-#define __packed	__attribute__((__packed__))
-#define __aligned(x)	__attribute__((__aligned__(x)))
-#define __section(x)	__attribute__((__section__(x)))
-#endif
-#endif
-
-#if !__GNUC_PREREQ__(2, 95)
-#define	__alignof(x)	__offsetof(struct { char __a; x __b; }, __b)
-#endif
-
-/*
- * Keywords added in C11.
- */
-#if defined(__cplusplus) && __cplusplus >= 201103L
-#define	_Alignas(e)		alignas(e)
-#define	_Alignof(e)		alignof(e)
-#define	_Noreturn		[[noreturn]]
-#define	_Static_assert(e, s)	static_assert(e, s)
-/* FIXME: change this to thread_local when clang in base supports it */
-#define	_Thread_local		__thread
-#elif defined(__STDC_VERSION__) && __STDC_VERSION__ >= 201112L
-/* Do nothing.  They are language keywords. */
-#else
-/* Not supported.  Implement them using our versions. */
-#define	_Alignas(x)		__aligned(x)
-#define	_Alignof(x)		__alignof(x)
-#define	_Noreturn		__dead2
-#define	_Thread_local		__thread
-#ifdef __COUNTER__
-#define	_Static_assert(x, y)	__Static_assert(x, __COUNTER__)
-#define	__Static_assert(x, y)	___Static_assert(x, y)
-#define	___Static_assert(x, y)	typedef char __assert_ ## y[(x) ? 1 : -1]
-#else
-#define	_Static_assert(x, y)	struct __hack
-#endif
-#endif
-
-/*
- * Emulation of C11 _Generic().  Unlike the previously defined C11
- * keywords, it is not possible to implement this using exactly the same
- * syntax.  Therefore implement something similar under the name
- * __generic().  Unlike _Generic(), this macro can only distinguish
- * between a single type, so it requires nested invocations to
- * distinguish multiple cases.
- */
-
-#if defined(__STDC_VERSION__) && __STDC_VERSION__ >= 201112L
-#define	__generic(expr, t, yes, no)					\
-	_Generic(expr, t: yes, default: no)
-#elif __GNUC_PREREQ__(3, 1) && !defined(__cplusplus)
-#define	__generic(expr, t, yes, no)					\
-	__builtin_choose_expr(						\
-	    __builtin_types_compatible_p(__typeof(expr), t), yes, no)
-#endif
-
-#if __GNUC_PREREQ__(2, 96)
-#define	__malloc_like	__attribute__((__malloc__))
-#define	__pure		__attribute__((__pure__))
-#else
-#define	__malloc_like
-#define	__pure
-#endif
-
-#if __GNUC_PREREQ__(3, 1) || (defined(__INTEL_COMPILER) && __INTEL_COMPILER >= 800)
-#define	__always_inline	__attribute__((__always_inline__))
-#else
-#define	__always_inline
-#endif
-
-#if __GNUC_PREREQ__(3, 1)
-#define	__noinline	__attribute__ ((__noinline__))
-#else
-#define	__noinline
-#endif
-
-#if __GNUC_PREREQ__(3, 3)
-#define __nonnull(x)	__attribute__((__nonnull__(x)))
-#else
-#define __nonnull(x)
-#endif
-
-#if __GNUC_PREREQ__(3, 4)
-#define	__fastcall	__attribute__((__fastcall__))
-#else
-#define	__fastcall
-#endif
-
-#if __GNUC_PREREQ__(4, 1)
-#define	__returns_twice	__attribute__((__returns_twice__))
-#else
-#define	__returns_twice
-#endif
-
-/* XXX: should use `#if __STDC_VERSION__ < 199901'. */
-#if !__GNUC_PREREQ__(2, 7) && !defined(__INTEL_COMPILER) && !defined(__WATCOMC__) /* bird: Watcom */
-#define	__func__	NULL
-#endif
-
-#if (defined(__INTEL_COMPILER) || (defined(__GNUC__) && __GNUC__ >= 2)) && !defined(__STRICT_ANSI__) || __STDC_VERSION__ >= 199901
-#define	__LONG_LONG_SUPPORTED
-#endif
-
-/* C++11 exposes a load of C99 stuff */
-#if defined(__cplusplus) && __cplusplus >= 201103L
-#define	__LONG_LONG_SUPPORTED
-#ifndef	__STDC_LIMIT_MACROS
-#define	__STDC_LIMIT_MACROS
-#endif
-#ifndef	__STDC_CONSTANT_MACROS
-#define	__STDC_CONSTANT_MACROS
-#endif
-#endif
-
-/*
- * GCC 2.95 provides `__restrict' as an extension to C90 to support the
- * C99-specific `restrict' type qualifier.  We happen to use `__restrict' as
- * a way to define the `restrict' type qualifier without disturbing older
- * software that is unaware of C99 keywords.
- */
-#if !(__GNUC__ == 2 && __GNUC_MINOR__ == 95)
-#if !defined(__STDC_VERSION__) || __STDC_VERSION__ < 199901 || defined(lint)
-#define	__restrict
-#else
-#define	__restrict	restrict
-#endif
-#endif
-
-/*
- * GNU C version 2.96 adds explicit branch prediction so that
- * the CPU back-end can hint the processor and also so that
- * code blocks can be reordered such that the predicted path
- * sees a more linear flow, thus improving cache behavior, etc.
- *
- * The following two macros provide us with a way to utilize this
- * compiler feature.  Use __predict_true() if you expect the expression
- * to evaluate to true, and __predict_false() if you expect the
- * expression to evaluate to false.
- *
- * A few notes about usage:
- *
- *	* Generally, __predict_false() error condition checks (unless
- *	  you have some _strong_ reason to do otherwise, in which case
- *	  document it), and/or __predict_true() `no-error' condition
- *	  checks, assuming you want to optimize for the no-error case.
- *
- *	* Other than that, if you don't know the likelihood of a test
- *	  succeeding from empirical or other `hard' evidence, don't
- *	  make predictions.
- *
- *	* These are meant to be used in places that are run `a lot'.
- *	  It is wasteful to make predictions in code that is run
- *	  seldomly (e.g. at subsystem initialization time) as the
- *	  basic block reordering that this affects can often generate
- *	  larger code.
- */
-#if __GNUC_PREREQ__(2, 96)
-#define __predict_true(exp)     __builtin_expect((exp), 1)
-#define __predict_false(exp)    __builtin_expect((exp), 0)
-#else
-#define __predict_true(exp)     (exp)
-#define __predict_false(exp)    (exp)
-#endif
-
-#if __GNUC_PREREQ__(4, 2)
-#define	__hidden	__attribute__((__visibility__("hidden")))
-#define	__exported	__attribute__((__visibility__("default")))
-#else
-#define	__hidden
-#define	__exported
-#endif
-
-/*
- * We define this here since <stddef.h>, <sys/queue.h>, and <sys/types.h>
- * require it.
- */
-#if __GNUC_PREREQ__(4, 1)
-#define __offsetof(type, field)	 __builtin_offsetof(type, field)
-#else
-#if !defined(__cplusplus) || !__GNUC_PREREQ__(3,4) /* bird: __offsetof__ was introduced in 3.4.x.  */
-#define	__offsetof(type, field)	\
-	((__size_t)(__uintptr_t)((const volatile void *)&((type *)0)->field))
-#else
-#define __offsetof(type, field)					\
-  (__offsetof__ (reinterpret_cast <__size_t>			\
-                 (&reinterpret_cast <const volatile char &>	\
-                  (static_cast<type *> (0)->field))))
-#endif
-#endif
-#define	__rangeof(type, start, end) \
-	(__offsetof(type, end) - __offsetof(type, start))
-
-/*
- * 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_PREREQ__(2, 7) && !defined(__INTEL_COMPILER)
-#define	__printflike(fmtarg, firstvararg)
-#define	__scanflike(fmtarg, firstvararg)
-#define	__format_arg(fmtarg)
-#define	__strfmonlike(fmtarg, firstvararg)
-#define	__strftimelike(fmtarg, firstvararg)
-#else
-#define	__printflike(fmtarg, firstvararg) \
-	    __attribute__((__format__ (__printf__, fmtarg, firstvararg)))
-#define	__scanflike(fmtarg, firstvararg) \
-	    __attribute__((__format__ (__scanf__, fmtarg, firstvararg)))
-#define	__format_arg(fmtarg)	__attribute__((__format_arg__ (fmtarg)))
-#define	__strfmonlike(fmtarg, firstvararg) \
-	    __attribute__((__format__ (__strfmon__, fmtarg, firstvararg)))
-#define	__strftimelike(fmtarg, firstvararg) \
-	    __attribute__((__format__ (__strftime__, fmtarg, firstvararg)))
-#endif
-
-/* Compiler-dependent macros that rely on FreeBSD-specific extensions. */
-#ifdef __FreeBSD_cc_version                 /* bird */
-#if __FreeBSD_cc_version >= 300001 && defined(__GNUC__) && !defined(__INTEL_COMPILER)
-#define	__printf0like(fmtarg, firstvararg) \
-	    __attribute__((__format__ (__printf0__, fmtarg, firstvararg)))
-#else
-#define	__printf0like(fmtarg, firstvararg)
-#endif
-#else                                       /* bird */
-#define	__printf0like(fmtarg, firstvararg)  /* bird */
-#endif                                      /* bird */
-
-#if 0 /* bird - mostly ELF specific, so skip it. */
-#if defined(__GNUC__) || defined(__INTEL_COMPILER)
-#ifndef __INTEL_COMPILER
-#define	__strong_reference(sym,aliassym)	\
-	extern __typeof (sym) aliassym __attribute__ ((__alias__ (#sym)))
-#endif
-#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")
-#define	__sym_compat(sym,impl,verid)	\
-	__asm__(".symver " #impl ", " #sym "@" #verid)
-#define	__sym_default(sym,impl,verid)	\
-	__asm__(".symver " #impl ", " #sym "@@" #verid)
-#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")
-#define	__sym_compat(sym,impl,verid)	\
-	__asm__(".symver impl, sym@verid")
-#define	__sym_default(impl,sym,verid)	\
-	__asm__(".symver impl, sym@@verid")
-#endif	/* __STDC__ */
-#endif	/* __GNUC__ || __INTEL_COMPILER */
-#else                                                                       /* bird */
-#define	__strong_reference(sym,aliassym)	\
-	extern __typeof (sym) aliassym __attribute__ ((__alias__ (#sym)));  /* bird */
-#endif                                                                      /* bird */
-
-#define	__GLOBL1(sym)	__asm__(".globl " #sym)
-#define	__GLOBL(sym)	__GLOBL1(sym)
-
-#if 0 /* defined(__GNUC__) || defined(__INTEL_COMPILER) - bird: ELF specific. */
-#define	__IDSTRING(name,string)	__asm__(".ident\t\"" string "\"")
-#else
-/*
- * The following definition might not work well if used in header files,
- * but it should be better than nothing.  If you want a "do nothing"
- * version, then it should generate some harmless declaration, such as:
- *    #define __IDSTRING(name,string)	struct __hack
- */
-#define	__IDSTRING(name,string)	static const char name[] __unused = string
-#endif
-
-/*
- * Embed the rcs id of a source file in the resulting library.  Note that in
- * more recent ELF binutils, we use .ident allowing the ID to be stripped.
- * Usage:
- *	__FBSDID("$FreeBSD$");
- */
-#ifndef	__FBSDID
-#if !defined(lint) && !defined(STRIP_FBSDID)
-#define	__FBSDID(s)	__IDSTRING(__CONCAT(__rcsid_,__LINE__),s)
-#else
-#define	__FBSDID(s)	struct __hack
-#endif
-#endif
-
-#ifndef	__RCSID
-#ifndef	NO__RCSID
-#define	__RCSID(s)	__IDSTRING(__CONCAT(__rcsid_,__LINE__),s)
-#else
-#define	__RCSID(s)	struct __hack
-#endif
-#endif
-
-#ifndef	__RCSID_SOURCE
-#ifndef	NO__RCSID_SOURCE
-#define	__RCSID_SOURCE(s)	__IDSTRING(__CONCAT(__rcsid_source_,__LINE__),s)
-#else
-#define	__RCSID_SOURCE(s)	struct __hack
-#endif
-#endif
-
-#ifndef	__SCCSID
-#ifndef	NO__SCCSID
-#define	__SCCSID(s)	__IDSTRING(__CONCAT(__sccsid_,__LINE__),s)
-#else
-#define	__SCCSID(s)	struct __hack
-#endif
-#endif
-
-#ifndef	__COPYRIGHT
-#ifndef	NO__COPYRIGHT
-#define	__COPYRIGHT(s)	__IDSTRING(__CONCAT(__copyright_,__LINE__),s)
-#else
-#define	__COPYRIGHT(s)	struct __hack
-#endif
-#endif
-
-#ifndef	__DECONST
-#define	__DECONST(type, var)	((type)(__uintptr_t)(const void *)(var))
-#endif
-
-#ifndef	__DEVOLATILE
-#define	__DEVOLATILE(type, var)	((type)(__uintptr_t)(volatile void *)(var))
-#endif
-
-#ifndef	__DEQUALIFY
-#define	__DEQUALIFY(type, var)	((type)(__uintptr_t)(const volatile void *)(var))
-#endif
-
-/*-
- * The following definitions are an extension of the behavior originally
- * implemented in <sys/_posix.h>, but with a different level of granularity.
- * POSIX.1 requires that the macros we test be defined before any standard
- * header file is included.
- *
- * Here's a quick run-down of the versions:
- *  defined(_POSIX_SOURCE)		1003.1-1988
- *  _POSIX_C_SOURCE == 1		1003.1-1990
- *  _POSIX_C_SOURCE == 2		1003.2-1992 C Language Binding Option
- *  _POSIX_C_SOURCE == 199309		1003.1b-1993
- *  _POSIX_C_SOURCE == 199506		1003.1c-1995, 1003.1i-1995,
- *					and the omnibus ISO/IEC 9945-1: 1996
- *  _POSIX_C_SOURCE == 200112		1003.1-2001
- *  _POSIX_C_SOURCE == 200809		1003.1-2008
- *
- * In addition, the X/Open Portability Guide, which is now the Single UNIX
- * Specification, defines a feature-test macro which indicates the version of
- * that specification, and which subsumes _POSIX_C_SOURCE.
- *
- * Our macros begin with two underscores to avoid namespace screwage.
- */
-
-/* Deal with IEEE Std. 1003.1-1990, in which _POSIX_C_SOURCE == 1. */
-#if defined(_POSIX_C_SOURCE) && _POSIX_C_SOURCE == 1
-#undef _POSIX_C_SOURCE		/* Probably illegal, but beyond caring now. */
-#define	_POSIX_C_SOURCE		199009
-#endif
-
-/* Deal with IEEE Std. 1003.2-1992, in which _POSIX_C_SOURCE == 2. */
-#if defined(_POSIX_C_SOURCE) && _POSIX_C_SOURCE == 2
-#undef _POSIX_C_SOURCE
-#define	_POSIX_C_SOURCE		199209
-#endif
-
-/* Deal with various X/Open Portability Guides and Single UNIX Spec. */
-#ifdef _XOPEN_SOURCE
-#if _XOPEN_SOURCE - 0 >= 700
-#define	__XSI_VISIBLE		700
-#undef _POSIX_C_SOURCE
-#define	_POSIX_C_SOURCE		200809
-#elif _XOPEN_SOURCE - 0 >= 600
-#define	__XSI_VISIBLE		600
-#undef _POSIX_C_SOURCE
-#define	_POSIX_C_SOURCE		200112
-#elif _XOPEN_SOURCE - 0 >= 500
-#define	__XSI_VISIBLE		500
-#undef _POSIX_C_SOURCE
-#define	_POSIX_C_SOURCE		199506
-#endif
-#endif
-
-/*
- * Deal with all versions of POSIX.  The ordering relative to the tests above is
- * important.
- */
-#if defined(_POSIX_SOURCE) && !defined(_POSIX_C_SOURCE)
-#define	_POSIX_C_SOURCE		198808
-#endif
-#ifdef _POSIX_C_SOURCE
-#if _POSIX_C_SOURCE >= 200809
-#define	__POSIX_VISIBLE		200809
-#define	__ISO_C_VISIBLE		1999
-#elif _POSIX_C_SOURCE >= 200112
-#define	__POSIX_VISIBLE		200112
-#define	__ISO_C_VISIBLE		1999
-#elif _POSIX_C_SOURCE >= 199506
-#define	__POSIX_VISIBLE		199506
-#define	__ISO_C_VISIBLE		1990
-#elif _POSIX_C_SOURCE >= 199309
-#define	__POSIX_VISIBLE		199309
-#define	__ISO_C_VISIBLE		1990
-#elif _POSIX_C_SOURCE >= 199209
-#define	__POSIX_VISIBLE		199209
-#define	__ISO_C_VISIBLE		1990
-#elif _POSIX_C_SOURCE >= 199009
-#define	__POSIX_VISIBLE		199009
-#define	__ISO_C_VISIBLE		1990
-#else
-#define	__POSIX_VISIBLE		198808
-#define	__ISO_C_VISIBLE		0
-#endif /* _POSIX_C_SOURCE */
-#else
-/*-
- * Deal with _ANSI_SOURCE:
- * If it is defined, and no other compilation environment is explicitly
- * requested, then define our internal feature-test macros to zero.  This
- * makes no difference to the preprocessor (undefined symbols in preprocessing
- * expressions are defined to have value zero), but makes it more convenient for
- * a test program to print out the values.
- *
- * If a program mistakenly defines _ANSI_SOURCE and some other macro such as
- * _POSIX_C_SOURCE, we will assume that it wants the broader compilation
- * environment (and in fact we will never get here).
- */
-#if defined(_ANSI_SOURCE)	/* Hide almost everything. */
-#define	__POSIX_VISIBLE		0
-#define	__XSI_VISIBLE		0
-#define	__BSD_VISIBLE		0
-#define	__ISO_C_VISIBLE		1990
-#elif defined(_C99_SOURCE)	/* Localism to specify strict C99 env. */
-#define	__POSIX_VISIBLE		0
-#define	__XSI_VISIBLE		0
-#define	__BSD_VISIBLE		0
-#define	__ISO_C_VISIBLE		1999
-#else				/* Default environment: show everything. */
-#define	__POSIX_VISIBLE		200809
-#define	__XSI_VISIBLE		700
-#define	__BSD_VISIBLE		1
-#define	__ISO_C_VISIBLE		1999
-#endif
-#endif
-
-#ifndef	__has_feature
-#define	__has_feature(x) 0
-#endif
-#ifndef	__has_include
-#define	__has_include(x) 0
-#endif
-#ifndef	__has_builtin
-#define	__has_builtin(x) 0
-#endif
-
-#if defined(__mips) || defined(__powerpc64__) || defined(__arm__)
-#define __NO_TLS 1
-#endif
-
-/*-
- * There are two strict backwards compatibility modes:
- *      TCPV40HDRS - BSD 4.3 based stack. TCP/IP versions prior to 4.1.
- *      TCPV41HDRS - BSD 4.4 based stack. TCP/IP versions 4.1 and higher.
- *
- * __USE_LIBC_TCPIP will add additional features for better compatability
- * with the current BSD stack. It can be defined together with the two
- * strict modes, but will have little effect in TCPV40HDRS mode.
- *
- * The default mode non-strict with __USE_LIBC_TCPIP defined.
- */
-#if !defined(__USE_LIBC_TCPIP) && !defined(TCPV40HDRS) && !defined(TCPV41HDRS)
-# define __USE_LIBC_TCPIP
-#endif
-#if defined(TCPV40HDRS) && defined(TCPV41HDRS)
-# error Cannot define both TCPV40HDRS and TCPV41HDRS. Make up your mind!
-#endif
-
-/* bird: toolkit pollution */
-#define __TCPPROTO(args) __P(args)
-#ifndef TCPCALL
-# ifdef __USE_LIBC_TCPIP
-#  define TCPCALL
-# else
-#  define TCPCALL _System
-# endif
-#endif
-
-/*
- * Smooth things out for other compilers.
- */
-#if defined(__WATCOMC__) || defined(_MSC_VER)
-# define __volatile__   volatile
-# define __const__      const
-# define __dead2
-# define __pure2
-# define __unused
-# ifdef __cplusplus
-#  define __inline__    inline
-# elif defined(_MSC_VER)
-#  define __inline__    _inline
-# else
-#  define __inline__    _inline
-# endif
-#endif
-
-
-/* bird: include the GNU sys/cdefs.h (which fortunately have another
-         blocker, _SYS_CDEFS_H). */
-#include <sys/gnu/cdefs.h>
-
-#endif /* !_SYS_CDEFS_H_ */
