1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
|
/* System definitions for code taken from the GNU C Library
Copyright 2017-2021 Free Software Foundation, Inc.
This program is free software; you can redistribute it and/or
modify it under the terms of the GNU General Public
License as published by the Free Software Foundation; either
version 3 of the License, or (at your option) any later version.
This program 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
General Public License for more details.
You should have received a copy of the GNU General Public
License along with this program; if not, see
<https://www.gnu.org/licenses/>. */
/* Written by Paul Eggert. */
/* This is intended to be a good-enough substitute for glibc system
macros like those defined in <sys/cdefs.h>, so that Gnulib code
shared with glibc can do this as the first #include:
#ifndef _LIBC
# include <libc-config.h>
#endif
When compiled as part of glibc this is a no-op; when compiled as
part of Gnulib this includes Gnulib's <config.h> and defines macros
that glibc library code would normally assume. */
#include <config.h>
/* On glibc this includes <features.h> and <sys/cdefs.h> and #defines
_FEATURES_H, __WORDSIZE, and __set_errno. On FreeBSD 11 and
DragonFlyBSD 5.9 it includes <sys/cdefs.h> which defines __nonnull.
Elsewhere it is harmless. */
#include <errno.h>
/* From glibc <errno.h>. */
#ifndef __set_errno
# define __set_errno(val) (errno = (val))
#endif
/* From glibc <features.h>. */
#ifndef __GNUC_PREREQ
# if defined __GNUC__ && defined __GNUC_MINOR__
# define __GNUC_PREREQ(maj, min) ((maj) < __GNUC__ + ((min) <= __GNUC_MINOR__))
# else
# define __GNUC_PREREQ(maj, min) 0
# endif
#endif
#ifndef __glibc_clang_prereq
# if defined __clang_major__ && defined __clang_minor__
# ifdef __apple_build_version__
/* Apple for some reason renumbers __clang_major__ and __clang_minor__.
Gnulib code uses only __glibc_clang_prereq (3, 5); map it to
6000000 <= __apple_build_version__. Support for other calls to
__glibc_clang_prereq can be added here as needed. */
# define __glibc_clang_prereq(maj, min) \
((maj) == 3 && (min) == 5 ? 6000000 <= __apple_build_version__ : 0)
# else
# define __glibc_clang_prereq(maj, min) \
((maj) < __clang_major__ + ((min) <= __clang_minor__))
# endif
# else
# define __glibc_clang_prereq(maj, min) 0
# endif
#endif
#ifndef __attribute_nonnull__
/* <sys/cdefs.h> either does not exist, or is too old for Gnulib.
Prepare to include <cdefs.h>, which is Gnulib's version of a
more-recent glibc <sys/cdefs.h>. */
/* Define _FEATURES_H so that <cdefs.h> does not include <features.h>. */
# ifndef _FEATURES_H
# define _FEATURES_H 1
# endif
/* Define __GNULIB_CDEFS so that <cdefs.h> does not attempt to include
nonexistent files. */
# define __GNULIB_CDEFS
/* Undef the macros unconditionally defined by our copy of glibc
<sys/cdefs.h>, so that they do not clash with any system-defined
versions. */
# undef _SYS_CDEFS_H
# undef __ASMNAME
# undef __ASMNAME2
# undef __BEGIN_DECLS
# undef __CONCAT
# undef __END_DECLS
# undef __HAVE_GENERIC_SELECTION
# undef __LDBL_COMPAT
# undef __LDBL_REDIR
# undef __LDBL_REDIR1
# undef __LDBL_REDIR1_DECL
# undef __LDBL_REDIR1_NTH
# undef __LDBL_REDIR2_DECL
# undef __LDBL_REDIR_DECL
# undef __LDBL_REDIR_NTH
# undef __LEAF
# undef __LEAF_ATTR
# undef __NTH
# undef __NTHNL
# undef __REDIRECT
# undef __REDIRECT_LDBL
# undef __REDIRECT_NTH
# undef __REDIRECT_NTHNL
# undef __REDIRECT_NTH_LDBL
# undef __STRING
# undef __THROW
# undef __THROWNL
# undef __attr_access
# undef __attribute__
# undef __attribute_alloc_size__
# undef __attribute_artificial__
# undef __attribute_const__
# undef __attribute_deprecated__
# undef __attribute_deprecated_msg__
# undef __attribute_format_arg__
# undef __attribute_format_strfmon__
# undef __attribute_malloc__
# undef __attribute_noinline__
# undef __attribute_nonstring__
# undef __attribute_pure__
# undef __attribute_returns_twice__
# undef __attribute_used__
# undef __attribute_warn_unused_result__
# undef __bos
# undef __bos0
# undef __errordecl
# undef __extension__
# undef __extern_always_inline
# undef __extern_inline
# undef __flexarr
# undef __fortify_function
# undef __glibc_c99_flexarr_available
# undef __glibc_has_attribute
# undef __glibc_has_builtin
# undef __glibc_has_extension
# undef __glibc_macro_warning
# undef __glibc_macro_warning1
# undef __glibc_objsize
# undef __glibc_objsize0
# undef __glibc_unlikely
# undef __inline
# undef __ptr_t
# undef __restrict
# undef __restrict_arr
# undef __va_arg_pack
# undef __va_arg_pack_len
# undef __warnattr
/* Include our copy of glibc <sys/cdefs.h>. */
# include <cdefs.h>
/* <cdefs.h> __inline is too pessimistic for non-GCC. */
# undef __inline
# ifndef HAVE___INLINE
# if 199901 <= __STDC_VERSION__ || defined inline
# define __inline inline
# else
# define __inline
# endif
# endif
#endif /* defined __glibc_likely */
/* A substitute for glibc <libc-symbols.h>, good enough for Gnulib. */
#define attribute_hidden
#define libc_hidden_proto(name)
#define libc_hidden_def(name)
#define libc_hidden_weak(name)
#define libc_hidden_ver(local, name)
#define strong_alias(name, aliasname)
#define weak_alias(name, aliasname)
/* A substitute for glibc <shlib-compat.h>, good enough for Gnulib. */
#define SHLIB_COMPAT(lib, introduced, obsoleted) 0
#define compat_symbol(lib, local, symbol, version) extern int dummy
#define versioned_symbol(lib, local, symbol, version) extern int dummy
|
