u-tools/apps/tar/gnu/stddef.in.h

   1 /* -*- buffer-read-only: t -*- vi: set ro: */
   2 /* DO NOT EDIT! GENERATED AUTOMATICALLY! */
   3 /* A substitute for POSIX 2008 <stddef.h>, for platforms that have issues.
   4
   5    Copyright (C) 2009-2011 Free Software Foundation, Inc.
   6
   7    This program is free software; you can redistribute it and/or modify
   8    it under the terms of the GNU General Public License as published by
   9    the Free Software Foundation; either version 3, or (at your option)
  10    any later version.
  11
  12    This program is distributed in the hope that it will be useful,
  13    but WITHOUT ANY WARRANTY; without even the implied warranty of
  14    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  15    GNU General Public License for more details.
  16
  17    You should have received a copy of the GNU General Public License
  18    along with this program; if not, write to the Free Software Foundation,
  19    Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.  */
  20
  21 /* Written by Eric Blake.  */
  22
  23 /*
  24  * POSIX 2008 <stddef.h> for platforms that have issues.
  25  * <http://www.opengroup.org/susv3xbd/stddef.h.html>
  26  */
  27
  28 #if __GNUC__ >= 3
  29 @PRAGMA_SYSTEM_HEADER@
  30 #endif
  31 @PRAGMA_COLUMNS@
  32
  33 #if defined __need_wchar_t || defined __need_size_t  \
  34   || defined __need_ptrdiff_t || defined __need_NULL \
  35   || defined __need_wint_t
  36 /* Special invocation convention inside gcc header files.  In
  37    particular, gcc provides a version of <stddef.h> that blindly
  38    redefines NULL even when __need_wint_t was defined, even though
  39    wint_t is not normally provided by <stddef.h>.  Hence, we must
  40    remember if special invocation has ever been used to obtain wint_t,
  41    in which case we need to clean up NULL yet again.  */
  42
  43 # if !(defined _GL_STDDEF_H && defined _GL_STDDEF_WINT_T)
  44 #  ifdef __need_wint_t
  45 #   undef _GL_STDDEF_H
  46 #   define _GL_STDDEF_WINT_T
  47 #  endif
  48 #  @INCLUDE_NEXT@ @NEXT_STDDEF_H@
  49 # endif
  50
  51 #else
  52 /* Normal invocation convention.  */
  53
  54 # ifndef _GL_STDDEF_H
  55
  56 /* The include_next requires a split double-inclusion guard.  */
  57
  58 #  @INCLUDE_NEXT@ @NEXT_STDDEF_H@
  59
  60 #  ifndef _GL_STDDEF_H
  61 #   define _GL_STDDEF_H
  62
  63 /* On NetBSD 5.0, the definition of NULL lacks proper parentheses.  */
  64 #if @REPLACE_NULL@
  65 # undef NULL
  66 # ifdef __cplusplus
  67    /* ISO C++ says that the macro NULL must expand to an integer constant
  68       expression, hence '((void *) 0)' is not allowed in C++.  */
  69 #  if __GNUG__ >= 3
  70     /* GNU C++ has a __null macro that behaves like an integer ('int' or
  71        'long') but has the same size as a pointer.  Use that, to avoid
  72        warnings.  */
  73 #   define NULL __null
  74 #  else
  75 #   define NULL 0L
  76 #  endif
  77 # else
  78 #  define NULL ((void *) 0)
  79 # endif
  80 #endif
  81
  82 /* Some platforms lack wchar_t.  */
  83 #if !@HAVE_WCHAR_T@
  84 # define wchar_t int
  85 #endif
  86
  87 #  endif /* _GL_STDDEF_H */
  88 # endif /* _GL_STDDEF_H */
  89 #endif /* __need_XXX */