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531f1ae0 | 1 | /* Handle POSIX compilation environments that may or may not be present. |
bfff8b1b | 2 | Copyright (C) 2012-2017 Free Software Foundation, Inc. |
531f1ae0 JM |
3 | This file is part of the GNU C Library. |
4 | ||
5 | The GNU C Library is free software; you can redistribute it and/or | |
6 | modify it under the terms of the GNU Lesser General Public | |
7 | License as published by the Free Software Foundation; either | |
8 | version 2.1 of the License, or (at your option) any later version. | |
9 | ||
10 | The GNU C Library 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 GNU | |
13 | Lesser General Public License for more details. | |
14 | ||
15 | You should have received a copy of the GNU Lesser General Public | |
16 | License along with the GNU C Library; if not, see | |
17 | <http://www.gnu.org/licenses/>. */ | |
18 | ||
19 | /* Before including this file, the including file must have included | |
20 | <bits/environments.h> (generally via <unistd.h>) and must have | |
21 | defined the following macros, exactly one of which will be called | |
22 | for each POSIX environment: | |
23 | ||
24 | KNOWN_PRESENT_ENVIRONMENT, for POSIX environments that are known to | |
25 | be supported in this libc. | |
26 | ||
27 | KNOWN_ABSENT_ENVIRONMENT, for POSIX environments that are known not | |
28 | to be supported on this system. | |
29 | ||
30 | UNKNOWN_ENVIRONMENT, for POSIX environments not supported in this | |
31 | libc but possibly supported by another libc on the same system, | |
32 | that can be selected using the same compiler but different | |
33 | compilation options. | |
34 | ||
35 | Each macro has arguments (SC_PREFIX, ENV_PREFIX, SUFFIX). The | |
36 | corresponding argument to sysconf is _SC_##SC_PREFIX##_##SUFFIX. | |
37 | The environment name, as used with getconf, is | |
38 | ENV_PREFIX##_##SUFFIX, and the corresponding macro is the same with | |
39 | a leading "_". | |
40 | ||
41 | In addition, the macros START_ENV_GROUP and END_ENV_GROUP must be | |
42 | defined. These are called with arguments V5, V6, V7 before and | |
43 | after the relevant groups of environments. */ | |
44 | ||
50cbbaa9 | 45 | #define NEED_SPEC_ARRAY 0 |
4a6aca7b SP |
46 | #include <posix-conf-vars.h> |
47 | ||
531f1ae0 JM |
48 | START_ENV_GROUP (V7) |
49 | ||
4a6aca7b | 50 | #if CONF_IS_DEFINED_SET (_POSIX_V7_ILP32_OFF32) |
531f1ae0 | 51 | KNOWN_PRESENT_ENVIRONMENT (V7, POSIX_V7, ILP32_OFF32) |
4a6aca7b | 52 | #elif CONF_IS_DEFINED (_POSIX_V7_ILP32_OFF32) |
531f1ae0 JM |
53 | KNOWN_ABSENT_ENVIRONMENT (V7, POSIX_V7, ILP32_OFF32) |
54 | #else | |
55 | UNKNOWN_ENVIRONMENT (V7, POSIX_V7, ILP32_OFF32) | |
56 | #endif | |
57 | ||
4a6aca7b | 58 | #if CONF_IS_DEFINED_SET (_POSIX_V7_ILP32_OFFBIG) |
531f1ae0 | 59 | KNOWN_PRESENT_ENVIRONMENT (V7, POSIX_V7, ILP32_OFFBIG) |
4a6aca7b | 60 | #elif CONF_IS_DEFINED (_POSIX_V7_ILP32_OFFBIG) |
531f1ae0 JM |
61 | KNOWN_ABSENT_ENVIRONMENT (V7, POSIX_V7, ILP32_OFFBIG) |
62 | #else | |
63 | UNKNOWN_ENVIRONMENT (V7, POSIX_V7, ILP32_OFFBIG) | |
64 | #endif | |
65 | ||
4a6aca7b | 66 | #if CONF_IS_DEFINED_SET (_POSIX_V7_LP64_OFF64) |
531f1ae0 | 67 | KNOWN_PRESENT_ENVIRONMENT (V7, POSIX_V7, LP64_OFF64) |
4a6aca7b | 68 | #elif CONF_IS_DEFINED (_POSIX_V7_LP64_OFF64) |
531f1ae0 JM |
69 | KNOWN_ABSENT_ENVIRONMENT (V7, POSIX_V7, LP64_OFF64) |
70 | #else | |
71 | UNKNOWN_ENVIRONMENT (V7, POSIX_V7, LP64_OFF64) | |
72 | #endif | |
73 | ||
4a6aca7b | 74 | #if CONF_IS_DEFINED_SET (_POSIX_V7_LPBIG_OFFBIG) |
531f1ae0 | 75 | KNOWN_PRESENT_ENVIRONMENT (V7, POSIX_V7, LPBIG_OFFBIG) |
4a6aca7b | 76 | #elif CONF_IS_DEFINED (_POSIX_V7_LPBIG_OFFBIG) |
531f1ae0 JM |
77 | KNOWN_ABSENT_ENVIRONMENT (V7, POSIX_V7, LPBIG_OFFBIG) |
78 | #else | |
79 | UNKNOWN_ENVIRONMENT (V7, POSIX_V7, LPBIG_OFFBIG) | |
80 | #endif | |
81 | ||
82 | END_ENV_GROUP (V7) | |
83 | ||
84 | START_ENV_GROUP (V6) | |
85 | ||
4a6aca7b | 86 | #if CONF_IS_DEFINED_SET (_POSIX_V6_ILP32_OFF32) |
531f1ae0 | 87 | KNOWN_PRESENT_ENVIRONMENT (V6, POSIX_V6, ILP32_OFF32) |
4a6aca7b | 88 | #elif CONF_IS_DEFINED (_POSIX_V6_ILP32_OFF32) |
531f1ae0 JM |
89 | KNOWN_ABSENT_ENVIRONMENT (V6, POSIX_V6, ILP32_OFF32) |
90 | #else | |
91 | UNKNOWN_ENVIRONMENT (V6, POSIX_V6, ILP32_OFF32) | |
92 | #endif | |
93 | ||
4a6aca7b | 94 | #if CONF_IS_DEFINED_SET (_POSIX_V6_ILP32_OFFBIG) |
531f1ae0 | 95 | KNOWN_PRESENT_ENVIRONMENT (V6, POSIX_V6, ILP32_OFFBIG) |
4a6aca7b | 96 | #elif CONF_IS_DEFINED (_POSIX_V6_ILP32_OFFBIG) |
531f1ae0 JM |
97 | KNOWN_ABSENT_ENVIRONMENT (V6, POSIX_V6, ILP32_OFFBIG) |
98 | #else | |
99 | UNKNOWN_ENVIRONMENT (V6, POSIX_V6, ILP32_OFFBIG) | |
100 | #endif | |
101 | ||
4a6aca7b | 102 | #if CONF_IS_DEFINED_SET (_POSIX_V6_LP64_OFF64) |
531f1ae0 | 103 | KNOWN_PRESENT_ENVIRONMENT (V6, POSIX_V6, LP64_OFF64) |
4a6aca7b | 104 | #elif CONF_IS_DEFINED (_POSIX_V6_LP64_OFF64) |
531f1ae0 JM |
105 | KNOWN_ABSENT_ENVIRONMENT (V6, POSIX_V6, LP64_OFF64) |
106 | #else | |
107 | UNKNOWN_ENVIRONMENT (V6, POSIX_V6, LP64_OFF64) | |
108 | #endif | |
109 | ||
4a6aca7b | 110 | #if CONF_IS_DEFINED_SET (_POSIX_V6_LPBIG_OFFBIG) |
531f1ae0 | 111 | KNOWN_PRESENT_ENVIRONMENT (V6, POSIX_V6, LPBIG_OFFBIG) |
4a6aca7b | 112 | #elif CONF_IS_DEFINED (_POSIX_V6_LPBIG_OFFBIG) |
531f1ae0 JM |
113 | KNOWN_ABSENT_ENVIRONMENT (V6, POSIX_V6, LPBIG_OFFBIG) |
114 | #else | |
115 | UNKNOWN_ENVIRONMENT (V6, POSIX_V6, LPBIG_OFFBIG) | |
116 | #endif | |
117 | ||
118 | END_ENV_GROUP (V6) | |
119 | ||
120 | START_ENV_GROUP (V5) | |
121 | ||
4a6aca7b | 122 | #if CONF_IS_DEFINED_SET (_XBS5_ILP32_OFF32) |
531f1ae0 | 123 | KNOWN_PRESENT_ENVIRONMENT (XBS5, XBS5, ILP32_OFF32) |
4a6aca7b | 124 | #elif CONF_IS_DEFINED (_XBS5_ILP32_OFF32) |
531f1ae0 JM |
125 | KNOWN_ABSENT_ENVIRONMENT (XBS5, XBS5, ILP32_OFF32) |
126 | #else | |
127 | UNKNOWN_ENVIRONMENT (XBS5, XBS5, ILP32_OFF32) | |
128 | #endif | |
129 | ||
4a6aca7b | 130 | #if CONF_IS_DEFINED_SET (_XBS5_ILP32_OFFBIG) |
531f1ae0 | 131 | KNOWN_PRESENT_ENVIRONMENT (XBS5, XBS5, ILP32_OFFBIG) |
4a6aca7b | 132 | #elif CONF_IS_DEFINED (_XBS5_ILP32_OFFBIG) |
531f1ae0 JM |
133 | KNOWN_ABSENT_ENVIRONMENT (XBS5, XBS5, ILP32_OFFBIG) |
134 | #else | |
135 | UNKNOWN_ENVIRONMENT (XBS5, XBS5, ILP32_OFFBIG) | |
136 | #endif | |
137 | ||
4a6aca7b | 138 | #if CONF_IS_DEFINED_SET (_XBS5_LP64_OFF64) |
531f1ae0 | 139 | KNOWN_PRESENT_ENVIRONMENT (XBS5, XBS5, LP64_OFF64) |
4a6aca7b | 140 | #elif CONF_IS_DEFINED (_XBS5_LP64_OFF64) |
531f1ae0 JM |
141 | KNOWN_ABSENT_ENVIRONMENT (XBS5, XBS5, LP64_OFF64) |
142 | #else | |
143 | UNKNOWN_ENVIRONMENT (XBS5, XBS5, LP64_OFF64) | |
144 | #endif | |
145 | ||
4a6aca7b | 146 | #if CONF_IS_DEFINED_SET (_XBS5_LPBIG_OFFBIG) |
531f1ae0 | 147 | KNOWN_PRESENT_ENVIRONMENT (XBS5, XBS5, LPBIG_OFFBIG) |
4a6aca7b | 148 | #elif CONF_IS_DEFINED (_XBS5_LPBIG_OFFBIG) |
531f1ae0 JM |
149 | KNOWN_ABSENT_ENVIRONMENT (XBS5, XBS5, LPBIG_OFFBIG) |
150 | #else | |
151 | UNKNOWN_ENVIRONMENT (XBS5, XBS5, LPBIG_OFFBIG) | |
152 | #endif | |
153 | ||
154 | END_ENV_GROUP (V5) |