Rev all the header files to sync things with glibc 2.2.4

1 files changed, 286 insertions, 70 deletions

diff --git a/include/features.h b/include/features.h
index f86788fa4..05afff6d8 100644
--- a/include/features.h
+++ b/include/features.h
@@ -1,6 +1,250 @@
-#ifndef __FEATURES_H
-#define __FEATURES_H
+/* Copyright (C) 1991,92,93,95,96,97,98,99,2000,2001 Free Software Foundation, Inc.
+   This file is part of the GNU C Library.
 
+   The GNU C Library is free software; you can redistribute it and/or
+   modify it under the terms of the GNU Lesser General Public
+   License as published by the Free Software Foundation; either
+   version 2.1 of the License, or (at your option) any later version.
+
+   The GNU C Library is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+   Lesser General Public License for more details.
+
+   You should have received a copy of the GNU Lesser General Public
+   License along with the GNU C Library; if not, write to the Free
+   Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
+   02111-1307 USA.  */
+
+#ifndef	_FEATURES_H
+#define	_FEATURES_H	1
+
+/* These are defined by the user (or the compiler)
+   to specify the desired environment:
+
+   __STRICT_ANSI__	ISO Standard C.
+   _ISOC99_SOURCE	Extensions to ISO C89 from ISO C99.
+   _POSIX_SOURCE	IEEE Std 1003.1.
+   _POSIX_C_SOURCE	If ==1, like _POSIX_SOURCE; if >=2 add IEEE Std 1003.2;
+			if >=199309L, add IEEE Std 1003.1b-1993;
+			if >=199506L, add IEEE Std 1003.1c-1995
+   _XOPEN_SOURCE	Includes POSIX and XPG things.  Set to 500 if
+			Single Unix conformance is wanted, to 600 for the
+			upcoming sixth revision.
+   _XOPEN_SOURCE_EXTENDED XPG things and X/Open Unix extensions.
+   _LARGEFILE_SOURCE	Some more functions for correct standard I/O.
+   _LARGEFILE64_SOURCE	Additional functionality from LFS for large files.
+   _FILE_OFFSET_BITS=N	Select default filesystem interface.
+   _BSD_SOURCE		ISO C, POSIX, and 4.3BSD things.
+   _SVID_SOURCE		ISO C, POSIX, and SVID things.
+   _GNU_SOURCE		All of the above, plus GNU extensions.
+   _REENTRANT		Select additionally reentrant object.
+   _THREAD_SAFE		Same as _REENTRANT, often used by other systems.
+
+   The `-ansi' switch to the GNU C compiler defines __STRICT_ANSI__.
+   If none of these are defined, the default is to have _SVID_SOURCE,
+   _BSD_SOURCE, and _POSIX_SOURCE set to one and _POSIX_C_SOURCE set to
+   199506L.  If more than one of these are defined, they accumulate.
+   For example __STRICT_ANSI__, _POSIX_SOURCE and _POSIX_C_SOURCE
+   together give you ISO C, 1003.1, and 1003.2, but nothing else.
+
+   These are defined by this file and are used by the
+   header files to decide what to declare or define:
+
+   __USE_ISOC99		Define ISO C99 things.
+   __USE_POSIX		Define IEEE Std 1003.1 things.
+   __USE_POSIX2		Define IEEE Std 1003.2 things.
+   __USE_POSIX199309	Define IEEE Std 1003.1, and .1b things.
+   __USE_POSIX199506	Define IEEE Std 1003.1, .1b, .1c and .1i things.
+   __USE_XOPEN		Define XPG things.
+   __USE_XOPEN_EXTENDED	Define X/Open Unix things.
+   __USE_UNIX98		Define Single Unix V2 things.
+   __USE_XOPEN2K        Define XPG6 things.
+   __USE_LARGEFILE	Define correct standard I/O things.
+   __USE_LARGEFILE64	Define LFS things with separate names.
+   __USE_FILE_OFFSET64	Define 64bit interface as default.
+   __USE_BSD		Define 4.3BSD things.
+   __USE_SVID		Define SVID things.
+   __USE_MISC		Define things common to BSD and System V Unix.
+   __USE_GNU		Define GNU extensions.
+   __USE_REENTRANT	Define reentrant/thread-safe *_r functions.
+   __FAVOR_BSD		Favor 4.3BSD things in cases of conflict.
+
+   The macros `__GNU_LIBRARY__', `__GLIBC__', and `__GLIBC_MINOR__' are
+   defined by this file unconditionally.  `__GNU_LIBRARY__' is provided
+   only for compatibility.  All new code should use the other symbols
+   to test for features.
+
+   All macros listed above as possibly being defined by this file are
+   explicitly undefined if they are not explicitly defined.
+   Feature-test macros that are not defined by the user or compiler
+   but are implied by the other feature-test macros defined (or by the
+   lack of any definitions) are defined by the file.  */
+
+
+/* Undefine everything, so we get a clean slate.  */
+#undef	__USE_ISOC99
+#undef	__USE_POSIX
+#undef	__USE_POSIX2
+#undef	__USE_POSIX199309
+#undef	__USE_POSIX199506
+#undef	__USE_XOPEN
+#undef	__USE_XOPEN_EXTENDED
+#undef	__USE_UNIX98
+#undef	__USE_XOPEN2K
+#undef	__USE_LARGEFILE
+#undef	__USE_LARGEFILE64
+#undef	__USE_FILE_OFFSET64
+#undef	__USE_BSD
+#undef	__USE_SVID
+#undef	__USE_MISC
+#undef	__USE_GNU
+#undef	__USE_REENTRANT
+#undef	__FAVOR_BSD
+#undef	__KERNEL_STRICT_NAMES
+
+/* Suppress kernel-name space pollution unless user expressedly asks
+   for it.  */
+#ifndef _LOOSE_KERNEL_NAMES
+# define __KERNEL_STRICT_NAMES
+#endif
+
+/* Always use ISO C things.  */
+#define	__USE_ANSI	1
+
+
+/* If _BSD_SOURCE was defined by the user, favor BSD over POSIX.  */
+#if defined _BSD_SOURCE && \
+    !(defined _POSIX_SOURCE || defined _POSIX_C_SOURCE || \
+      defined _XOPEN_SOURCE || defined _XOPEN_SOURCE_EXTENDED || \
+      defined _GNU_SOURCE || defined _SVID_SOURCE)
+# define __FAVOR_BSD	1
+#endif
+
+/* If _GNU_SOURCE was defined by the user, turn on all the other features.  */
+#ifdef _GNU_SOURCE
+# undef  _ISOC99_SOURCE
+# define _ISOC99_SOURCE	1
+# undef  _POSIX_SOURCE
+# define _POSIX_SOURCE	1
+# undef  _POSIX_C_SOURCE
+# define _POSIX_C_SOURCE	199506L
+# undef  _XOPEN_SOURCE
+# define _XOPEN_SOURCE	600
+# undef  _XOPEN_SOURCE_EXTENDED
+# define _XOPEN_SOURCE_EXTENDED	1
+# undef	 _LARGEFILE64_SOURCE
+# define _LARGEFILE64_SOURCE	1
+# undef  _BSD_SOURCE
+# define _BSD_SOURCE	1
+# undef  _SVID_SOURCE
+# define _SVID_SOURCE	1
+#endif
+
+/* If nothing (other than _GNU_SOURCE) is defined,
+   define _BSD_SOURCE and _SVID_SOURCE.  */
+#if (!defined __STRICT_ANSI__ && !defined _ISOC99_SOURCE && \
+     !defined _POSIX_SOURCE && !defined _POSIX_C_SOURCE && \
+     !defined _XOPEN_SOURCE && !defined _XOPEN_SOURCE_EXTENDED && \
+     !defined _BSD_SOURCE && !defined _SVID_SOURCE)
+# define _BSD_SOURCE	1
+# define _SVID_SOURCE	1
+#endif
+
+/* This is to enable the ISO C99 extension.  Also recognize the old macro
+   which was used prior to the standard acceptance.  This macro will
+   eventually go away and the features enabled by default once the ISO C99
+   standard is widely adopted.  */
+#if (defined _ISOC99_SOURCE || defined _ISOC9X_SOURCE \
+     || (defined __STDC_VERSION__ && __STDC_VERSION__ >= 199901L))
+# define __USE_ISOC99	1
+#endif
+
+/* If none of the ANSI/POSIX macros are defined, use POSIX.1 and POSIX.2
+   (and IEEE Std 1003.1b-1993 unless _XOPEN_SOURCE is defined).  */
+#if (!defined __STRICT_ANSI__ && !defined _POSIX_SOURCE && \
+     !defined _POSIX_C_SOURCE)
+# define _POSIX_SOURCE	1
+# if defined _XOPEN_SOURCE && (_XOPEN_SOURCE - 0) < 500
+#  define _POSIX_C_SOURCE	2
+# else
+#  define _POSIX_C_SOURCE	199506L
+# endif
+#endif
+
+#if defined _POSIX_SOURCE || _POSIX_C_SOURCE >= 1 || defined _XOPEN_SOURCE
+# define __USE_POSIX	1
+#endif
+
+#if defined _POSIX_C_SOURCE && _POSIX_C_SOURCE >= 2 || defined _XOPEN_SOURCE
+# define __USE_POSIX2	1
+#endif
+
+#if (_POSIX_C_SOURCE - 0) >= 199309L
+# define __USE_POSIX199309	1
+#endif
+
+#if (_POSIX_C_SOURCE - 0) >= 199506L
+# define __USE_POSIX199506	1
+#endif
+
+#ifdef	_XOPEN_SOURCE
+# define __USE_XOPEN	1
+# if (_XOPEN_SOURCE - 0) >= 500
+#  define __USE_XOPEN_EXTENDED	1
+#  define __USE_UNIX98	1
+#  undef _LARGEFILE_SOURCE
+#  define _LARGEFILE_SOURCE	1
+#  if (_XOPEN_SOURCE - 0) >= 600
+#   define __USE_XOPEN2K	1
+#   undef __USE_ISOC99
+#   define __USE_ISOC99		1
+#  endif
+# else
+#  ifdef _XOPEN_SOURCE_EXTENDED
+#   define __USE_XOPEN_EXTENDED	1
+#  endif
+# endif
+#endif
+
+#ifdef _LARGEFILE_SOURCE
+# define __USE_LARGEFILE	1
+#endif
+
+#ifdef _LARGEFILE64_SOURCE
+# define __USE_LARGEFILE64	1
+#endif
+
+#if defined _FILE_OFFSET_BITS && _FILE_OFFSET_BITS == 64
+# define __USE_FILE_OFFSET64	1
+#endif
+
+#if defined _BSD_SOURCE || defined _SVID_SOURCE
+# define __USE_MISC	1
+#endif
+
+#ifdef	_BSD_SOURCE
+# define __USE_BSD	1
+#endif
+
+#ifdef	_SVID_SOURCE
+# define __USE_SVID	1
+#endif
+
+#ifdef	_GNU_SOURCE
+# define __USE_GNU	1
+#endif
+
+#if defined _REENTRANT || defined _THREAD_SAFE
+# define __USE_REENTRANT	1
+#endif
+
+/* We do support the IEC 559 math functionality, real and complex.  */
+#define __STDC_IEC_559__		1
+#define __STDC_IEC_559_COMPLEX__	1
+
+/* wchar_t uses ISO 10646-1 (2nd ed., published 2000-09-15) / Unicode 3.0.  */
+#define __STDC_ISO_10646__		200009L
 
 /* Major and minor version number of the uClibc library package.  Use
    these macros to test for features in specific releases.  */
@@ -18,93 +262,67 @@
 #if !defined _LIBC || defined __FORCE_GLIBC__ 
 #   define __GNU_LIBRARY__ 6
 #   define __GLIBC__       2
-#   define __GLIBC_MINOR__ 1
+#   define __GLIBC_MINOR__ 2
 #endif	
 
-/* Make a half-hearted attempt to accomodate non-gcc compilers */
-#ifndef __GNUC__
-#define __attribute(foo)  /* Ignore */
-#endif
-
-/* Convenience macro to test the version of gcc.
- * Use it like this:
- * #if __GNUC_PREREQ (2,8)
- * ... code requiring gcc 2.8 or later ...
- * #endif
- * Note - they won't work for gcc1, since the _MINOR macros
- * were not defined then. */
+/* Convenience macros to test the versions of glibc and gcc.
+   Use them like this:
+   #if __GNUC_PREREQ (2,8)
+   ... code requiring gcc 2.8 or later ...
+   #endif
+   Note - they won't work for gcc1 or glibc1, since the _MINOR macros
+   were not defined then.  */
 #if defined __GNUC__ && defined __GNUC_MINOR__
-#define __GNUC_PREREQ(maj, min) \
+# define __GNUC_PREREQ(maj, min) \
 	((__GNUC__ << 16) + __GNUC_MINOR__ >= ((maj) << 16) + (min))
 #else
-#define __GNUC_PREREQ(maj,min) 0
+# define __GNUC_PREREQ(maj, min) 0
 #endif
 
-/* __restrict is known in EGCS 1.2 and above. */
-#if !defined __GNUC__ || __GNUC__ < 2 || (__GNUC__ == 2 && __GNUC_MINOR__ < 92)
-# define __restrict     /* Ignore */
-#endif
+#define __GLIBC_PREREQ(maj, min) \
+	((__GLIBC__ << 16) + __GLIBC_MINOR__ >= ((maj) << 16) + (min))
 
-/* __extension__ is known in gcc 2.8 above. */
-#if !defined __GNUC__ || __GNUC__ < 2 || (__GNUC__ == 2 && __GNUC_MINOR__ < 8)
-# define __extension__     /* Ignore */
+/* This is here only because every header file already includes this one.  */
+#ifndef __ASSEMBLER__
+#ifndef _SYS_CDEFS_H
+# include <sys/cdefs.h>
 #endif
 
-#ifdef __STDC__
+/* If we don't have __REDIRECT, prototypes will be missing if
+   __USE_FILE_OFFSET64 but not __USE_LARGEFILE[64]. */
+# if defined __USE_FILE_OFFSET64 && !defined __REDIRECT
+#  define __USE_LARGEFILE	1
+#  define __USE_LARGEFILE64	1
+# endif
 
-#define __P(x)	    x
-#define __PMT(x)    x
-#ifndef __const
-#define __const const
-#endif
+#endif	/* !ASSEMBLER */
 
-/* Almost ansi */
-#if __STDC__ != 1
-#ifndef const
-#define const
-#endif
-#define volatile
+/* Decide whether we can define 'extern inline' functions in headers.  */
+#if __GNUC_PREREQ (2, 7) && defined __OPTIMIZE__ \
+    && !defined __OPTIMIZE_SIZE__ && !defined __NO_INLINE__
+# define __USE_EXTERN_INLINES	1
 #endif
 
-#else /* K&R */
+/* This is here only because every header file already includes this one.  */
+#if 0
+//#ifndef _LIBC
+/* Get the definitions of all the appropriate `__stub_FUNCTION' symbols.
+   <gnu/stubs.h> contains `#define __stub_FUNCTION' when FUNCTION is a stub
+   which will always return failure (and set errno to ENOSYS).
 
-#define __P(x) ()
-#ifndef __const
-#define __const
-#endif
-#ifndef const
-#define const
-#endif
-#define volatile
+   We avoid including <gnu/stubs.h> when compiling the C library itself to
+   avoid a dependency loop.  stubs.h depends on every object file.  If
+   this #include were done for the library source code, then every object
+   file would depend on stubs.h.  */
 
+# include <gnu/stubs.h>
 #endif
 
-/* GNUish things */
-#define __CONSTVALUE
-#define __CONSTVALUE2
-
-#define __USE_BSD
-#define __USE_MISC
-#define __USE_POSIX
-#define __USE_POSIX2
-#define __USE_XOPEN
-
-#undef  __KERNEL_STRICT_NAMES
-#ifndef _LOOSE_KERNEL_NAMES
-# define __KERNEL_STRICT_NAMES
-#endif
-
-#ifdef  _GNU_SOURCE
-# define __USE_GNU      1
-#endif
-
-#include <sys/cdefs.h>
-
+/* Load up the current set of uClibc supported features */
 #define __need_uClibc_config_h
 #include <bits/uClibc_config.h>
 #undef __need_uClibc_config_h
 
-
 /* Some nice features only work properly with ELF */
 #if defined HAVE_ELF	
 #   define link_warning(symbol, msg) \
@@ -121,6 +339,4 @@
 	__asm__(".global alias\n.set alias,original");
 #endif
 
-
-#endif
-
+#endif	/* features.h  */