posix/posix-envs.def

   1 /* Handle POSIX compilation environments that may or may not be present.
   2    Copyright (C) 2012-2014 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 START_ENV_GROUP (V7)
  46
  47 #if _POSIX_V7_ILP32_OFF32 > 0
  48 KNOWN_PRESENT_ENVIRONMENT (V7, POSIX_V7, ILP32_OFF32)
  49 #elif defined _POSIX_V7_ILP32_OFF32
  50 KNOWN_ABSENT_ENVIRONMENT (V7, POSIX_V7, ILP32_OFF32)
  51 #else
  52 UNKNOWN_ENVIRONMENT (V7, POSIX_V7, ILP32_OFF32)
  53 #endif
  54
  55 #if _POSIX_V7_ILP32_OFFBIG > 0
  56 KNOWN_PRESENT_ENVIRONMENT (V7, POSIX_V7, ILP32_OFFBIG)
  57 #elif defined _POSIX_V7_ILP32_OFFBIG
  58 KNOWN_ABSENT_ENVIRONMENT (V7, POSIX_V7, ILP32_OFFBIG)
  59 #else
  60 UNKNOWN_ENVIRONMENT (V7, POSIX_V7, ILP32_OFFBIG)
  61 #endif
  62
  63 #if _POSIX_V7_LP64_OFF64 > 0
  64 KNOWN_PRESENT_ENVIRONMENT (V7, POSIX_V7, LP64_OFF64)
  65 #elif defined _POSIX_V7_LP64_OFF64
  66 KNOWN_ABSENT_ENVIRONMENT (V7, POSIX_V7, LP64_OFF64)
  67 #else
  68 UNKNOWN_ENVIRONMENT (V7, POSIX_V7, LP64_OFF64)
  69 #endif
  70
  71 #if _POSIX_V7_LPBIG_OFFBIG > 0
  72 KNOWN_PRESENT_ENVIRONMENT (V7, POSIX_V7, LPBIG_OFFBIG)
  73 #elif defined _POSIX_V7_LPBIG_OFFBIG
  74 KNOWN_ABSENT_ENVIRONMENT (V7, POSIX_V7, LPBIG_OFFBIG)
  75 #else
  76 UNKNOWN_ENVIRONMENT (V7, POSIX_V7, LPBIG_OFFBIG)
  77 #endif
  78
  79 END_ENV_GROUP (V7)
  80
  81 START_ENV_GROUP (V6)
  82
  83 #if _POSIX_V6_ILP32_OFF32 > 0
  84 KNOWN_PRESENT_ENVIRONMENT (V6, POSIX_V6, ILP32_OFF32)
  85 #elif defined _POSIX_V6_ILP32_OFF32
  86 KNOWN_ABSENT_ENVIRONMENT (V6, POSIX_V6, ILP32_OFF32)
  87 #else
  88 UNKNOWN_ENVIRONMENT (V6, POSIX_V6, ILP32_OFF32)
  89 #endif
  90
  91 #if _POSIX_V6_ILP32_OFFBIG > 0
  92 KNOWN_PRESENT_ENVIRONMENT (V6, POSIX_V6, ILP32_OFFBIG)
  93 #elif defined _POSIX_V6_ILP32_OFFBIG
  94 KNOWN_ABSENT_ENVIRONMENT (V6, POSIX_V6, ILP32_OFFBIG)
  95 #else
  96 UNKNOWN_ENVIRONMENT (V6, POSIX_V6, ILP32_OFFBIG)
  97 #endif
  98
  99 #if _POSIX_V6_LP64_OFF64 > 0
 100 KNOWN_PRESENT_ENVIRONMENT (V6, POSIX_V6, LP64_OFF64)
 101 #elif defined _POSIX_V6_LP64_OFF64
 102 KNOWN_ABSENT_ENVIRONMENT (V6, POSIX_V6, LP64_OFF64)
 103 #else
 104 UNKNOWN_ENVIRONMENT (V6, POSIX_V6, LP64_OFF64)
 105 #endif
 106
 107 #if _POSIX_V6_LPBIG_OFFBIG > 0
 108 KNOWN_PRESENT_ENVIRONMENT (V6, POSIX_V6, LPBIG_OFFBIG)
 109 #elif defined _POSIX_V6_LPBIG_OFFBIG
 110 KNOWN_ABSENT_ENVIRONMENT (V6, POSIX_V6, LPBIG_OFFBIG)
 111 #else
 112 UNKNOWN_ENVIRONMENT (V6, POSIX_V6, LPBIG_OFFBIG)
 113 #endif
 114
 115 END_ENV_GROUP (V6)
 116
 117 START_ENV_GROUP (V5)
 118
 119 #if _XBS5_ILP32_OFF32 > 0
 120 KNOWN_PRESENT_ENVIRONMENT (XBS5, XBS5, ILP32_OFF32)
 121 #elif defined _XBS5_ILP32_OFF32
 122 KNOWN_ABSENT_ENVIRONMENT (XBS5, XBS5, ILP32_OFF32)
 123 #else
 124 UNKNOWN_ENVIRONMENT (XBS5, XBS5, ILP32_OFF32)
 125 #endif
 126
 127 #if _XBS5_ILP32_OFFBIG > 0
 128 KNOWN_PRESENT_ENVIRONMENT (XBS5, XBS5, ILP32_OFFBIG)
 129 #elif defined _XBS5_ILP32_OFFBIG
 130 KNOWN_ABSENT_ENVIRONMENT (XBS5, XBS5, ILP32_OFFBIG)
 131 #else
 132 UNKNOWN_ENVIRONMENT (XBS5, XBS5, ILP32_OFFBIG)
 133 #endif
 134
 135 #if _XBS5_LP64_OFF64 > 0
 136 KNOWN_PRESENT_ENVIRONMENT (XBS5, XBS5, LP64_OFF64)
 137 #elif defined _XBS5_LP64_OFF64
 138 KNOWN_ABSENT_ENVIRONMENT (XBS5, XBS5, LP64_OFF64)
 139 #else
 140 UNKNOWN_ENVIRONMENT (XBS5, XBS5, LP64_OFF64)
 141 #endif
 142
 143 #if _XBS5_LPBIG_OFFBIG > 0
 144 KNOWN_PRESENT_ENVIRONMENT (XBS5, XBS5, LPBIG_OFFBIG)
 145 #elif defined _XBS5_LPBIG_OFFBIG
 146 KNOWN_ABSENT_ENVIRONMENT (XBS5, XBS5, LPBIG_OFFBIG)
 147 #else
 148 UNKNOWN_ENVIRONMENT (XBS5, XBS5, LPBIG_OFFBIG)
 149 #endif
 150
 151 END_ENV_GROUP (V5)