posix/posix-envs.def

   1 /* Handle POSIX compilation environments that may or may not be present.
   2    Copyright (C) 2012-2021 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    <https://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)