source: grub-pc/trunk/fuentes/grub-core/gnulib/stddef.in.h @ 22

Last change on this file since 22 was 22, checked in by mabarracus, 4 years ago

updated version and apply net.ifnames=0 into debian/rules

File size: 2.7 KB
Line 
1/* A substitute for POSIX 2008 <stddef.h>, for platforms that have issues.
2
3   Copyright (C) 2009-2013 Free Software Foundation, Inc.
4
5   This program is free software; you can redistribute it and/or modify
6   it under the terms of the GNU General Public License as published by
7   the Free Software Foundation; either version 3, or (at your option)
8   any later version.
9
10   This program is distributed in the hope that it will be useful,
11   but WITHOUT ANY WARRANTY; without even the implied warranty of
12   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
13   GNU General Public License for more details.
14
15   You should have received a copy of the GNU General Public License
16   along with this program; if not, see <http://www.gnu.org/licenses/>.  */
17
18/* Written by Eric Blake.  */
19
20/*
21 * POSIX 2008 <stddef.h> for platforms that have issues.
22 * <http://www.opengroup.org/susv3xbd/stddef.h.html>
23 */
24
25#if __GNUC__ >= 3
26@PRAGMA_SYSTEM_HEADER@
27#endif
28@PRAGMA_COLUMNS@
29
30#if defined __need_wchar_t || defined __need_size_t  \
31  || defined __need_ptrdiff_t || defined __need_NULL \
32  || defined __need_wint_t
33/* Special invocation convention inside gcc header files.  In
34   particular, gcc provides a version of <stddef.h> that blindly
35   redefines NULL even when __need_wint_t was defined, even though
36   wint_t is not normally provided by <stddef.h>.  Hence, we must
37   remember if special invocation has ever been used to obtain wint_t,
38   in which case we need to clean up NULL yet again.  */
39
40# if !(defined _@GUARD_PREFIX@_STDDEF_H && defined _GL_STDDEF_WINT_T)
41#  ifdef __need_wint_t
42#   undef _@GUARD_PREFIX@_STDDEF_H
43#   define _GL_STDDEF_WINT_T
44#  endif
45#  @INCLUDE_NEXT@ @NEXT_STDDEF_H@
46# endif
47
48#else
49/* Normal invocation convention.  */
50
51# ifndef _@GUARD_PREFIX@_STDDEF_H
52
53/* The include_next requires a split double-inclusion guard.  */
54
55#  @INCLUDE_NEXT@ @NEXT_STDDEF_H@
56
57#  ifndef _@GUARD_PREFIX@_STDDEF_H
58#   define _@GUARD_PREFIX@_STDDEF_H
59
60/* On NetBSD 5.0, the definition of NULL lacks proper parentheses.  */
61#if @REPLACE_NULL@
62# undef NULL
63# ifdef __cplusplus
64   /* ISO C++ says that the macro NULL must expand to an integer constant
65      expression, hence '((void *) 0)' is not allowed in C++.  */
66#  if __GNUG__ >= 3
67    /* GNU C++ has a __null macro that behaves like an integer ('int' or
68       'long') but has the same size as a pointer.  Use that, to avoid
69       warnings.  */
70#   define NULL __null
71#  else
72#   define NULL 0L
73#  endif
74# else
75#  define NULL ((void *) 0)
76# endif
77#endif
78
79/* Some platforms lack wchar_t.  */
80#if !@HAVE_WCHAR_T@
81# define wchar_t int
82#endif
83
84#  endif /* _@GUARD_PREFIX@_STDDEF_H */
85# endif /* _@GUARD_PREFIX@_STDDEF_H */
86#endif /* __need_XXX */
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