xf.li | bdd93d5 | 2023-05-12 07:10:14 -0700 | [diff] [blame] | 1 | /* Handle POSIX compilation environments that may or may not be present. |
| 2 | Copyright (C) 2012-2016 Free Software Foundation, Inc. |
| 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 | |
| 45 | #define NEED_SPEC_ARRAY 0 |
| 46 | #include <posix-conf-vars.h> |
| 47 | |
| 48 | START_ENV_GROUP (V7) |
| 49 | |
| 50 | #if CONF_IS_DEFINED_SET (_POSIX_V7_ILP32_OFF32) |
| 51 | KNOWN_PRESENT_ENVIRONMENT (V7, POSIX_V7, ILP32_OFF32) |
| 52 | #elif CONF_IS_DEFINED (_POSIX_V7_ILP32_OFF32) |
| 53 | KNOWN_ABSENT_ENVIRONMENT (V7, POSIX_V7, ILP32_OFF32) |
| 54 | #else |
| 55 | UNKNOWN_ENVIRONMENT (V7, POSIX_V7, ILP32_OFF32) |
| 56 | #endif |
| 57 | |
| 58 | #if CONF_IS_DEFINED_SET (_POSIX_V7_ILP32_OFFBIG) |
| 59 | KNOWN_PRESENT_ENVIRONMENT (V7, POSIX_V7, ILP32_OFFBIG) |
| 60 | #elif CONF_IS_DEFINED (_POSIX_V7_ILP32_OFFBIG) |
| 61 | KNOWN_ABSENT_ENVIRONMENT (V7, POSIX_V7, ILP32_OFFBIG) |
| 62 | #else |
| 63 | UNKNOWN_ENVIRONMENT (V7, POSIX_V7, ILP32_OFFBIG) |
| 64 | #endif |
| 65 | |
| 66 | #if CONF_IS_DEFINED_SET (_POSIX_V7_LP64_OFF64) |
| 67 | KNOWN_PRESENT_ENVIRONMENT (V7, POSIX_V7, LP64_OFF64) |
| 68 | #elif CONF_IS_DEFINED (_POSIX_V7_LP64_OFF64) |
| 69 | KNOWN_ABSENT_ENVIRONMENT (V7, POSIX_V7, LP64_OFF64) |
| 70 | #else |
| 71 | UNKNOWN_ENVIRONMENT (V7, POSIX_V7, LP64_OFF64) |
| 72 | #endif |
| 73 | |
| 74 | #if CONF_IS_DEFINED_SET (_POSIX_V7_LPBIG_OFFBIG) |
| 75 | KNOWN_PRESENT_ENVIRONMENT (V7, POSIX_V7, LPBIG_OFFBIG) |
| 76 | #elif CONF_IS_DEFINED (_POSIX_V7_LPBIG_OFFBIG) |
| 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 | |
| 86 | #if CONF_IS_DEFINED_SET (_POSIX_V6_ILP32_OFF32) |
| 87 | KNOWN_PRESENT_ENVIRONMENT (V6, POSIX_V6, ILP32_OFF32) |
| 88 | #elif CONF_IS_DEFINED (_POSIX_V6_ILP32_OFF32) |
| 89 | KNOWN_ABSENT_ENVIRONMENT (V6, POSIX_V6, ILP32_OFF32) |
| 90 | #else |
| 91 | UNKNOWN_ENVIRONMENT (V6, POSIX_V6, ILP32_OFF32) |
| 92 | #endif |
| 93 | |
| 94 | #if CONF_IS_DEFINED_SET (_POSIX_V6_ILP32_OFFBIG) |
| 95 | KNOWN_PRESENT_ENVIRONMENT (V6, POSIX_V6, ILP32_OFFBIG) |
| 96 | #elif CONF_IS_DEFINED (_POSIX_V6_ILP32_OFFBIG) |
| 97 | KNOWN_ABSENT_ENVIRONMENT (V6, POSIX_V6, ILP32_OFFBIG) |
| 98 | #else |
| 99 | UNKNOWN_ENVIRONMENT (V6, POSIX_V6, ILP32_OFFBIG) |
| 100 | #endif |
| 101 | |
| 102 | #if CONF_IS_DEFINED_SET (_POSIX_V6_LP64_OFF64) |
| 103 | KNOWN_PRESENT_ENVIRONMENT (V6, POSIX_V6, LP64_OFF64) |
| 104 | #elif CONF_IS_DEFINED (_POSIX_V6_LP64_OFF64) |
| 105 | KNOWN_ABSENT_ENVIRONMENT (V6, POSIX_V6, LP64_OFF64) |
| 106 | #else |
| 107 | UNKNOWN_ENVIRONMENT (V6, POSIX_V6, LP64_OFF64) |
| 108 | #endif |
| 109 | |
| 110 | #if CONF_IS_DEFINED_SET (_POSIX_V6_LPBIG_OFFBIG) |
| 111 | KNOWN_PRESENT_ENVIRONMENT (V6, POSIX_V6, LPBIG_OFFBIG) |
| 112 | #elif CONF_IS_DEFINED (_POSIX_V6_LPBIG_OFFBIG) |
| 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 | |
| 122 | #if CONF_IS_DEFINED_SET (_XBS5_ILP32_OFF32) |
| 123 | KNOWN_PRESENT_ENVIRONMENT (XBS5, XBS5, ILP32_OFF32) |
| 124 | #elif CONF_IS_DEFINED (_XBS5_ILP32_OFF32) |
| 125 | KNOWN_ABSENT_ENVIRONMENT (XBS5, XBS5, ILP32_OFF32) |
| 126 | #else |
| 127 | UNKNOWN_ENVIRONMENT (XBS5, XBS5, ILP32_OFF32) |
| 128 | #endif |
| 129 | |
| 130 | #if CONF_IS_DEFINED_SET (_XBS5_ILP32_OFFBIG) |
| 131 | KNOWN_PRESENT_ENVIRONMENT (XBS5, XBS5, ILP32_OFFBIG) |
| 132 | #elif CONF_IS_DEFINED (_XBS5_ILP32_OFFBIG) |
| 133 | KNOWN_ABSENT_ENVIRONMENT (XBS5, XBS5, ILP32_OFFBIG) |
| 134 | #else |
| 135 | UNKNOWN_ENVIRONMENT (XBS5, XBS5, ILP32_OFFBIG) |
| 136 | #endif |
| 137 | |
| 138 | #if CONF_IS_DEFINED_SET (_XBS5_LP64_OFF64) |
| 139 | KNOWN_PRESENT_ENVIRONMENT (XBS5, XBS5, LP64_OFF64) |
| 140 | #elif CONF_IS_DEFINED (_XBS5_LP64_OFF64) |
| 141 | KNOWN_ABSENT_ENVIRONMENT (XBS5, XBS5, LP64_OFF64) |
| 142 | #else |
| 143 | UNKNOWN_ENVIRONMENT (XBS5, XBS5, LP64_OFF64) |
| 144 | #endif |
| 145 | |
| 146 | #if CONF_IS_DEFINED_SET (_XBS5_LPBIG_OFFBIG) |
| 147 | KNOWN_PRESENT_ENVIRONMENT (XBS5, XBS5, LPBIG_OFFBIG) |
| 148 | #elif CONF_IS_DEFINED (_XBS5_LPBIG_OFFBIG) |
| 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) |