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152 lines
4.8 KiB
Modula-2
152 lines
4.8 KiB
Modula-2
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/* Handle POSIX compilation environments that may or may not be present.
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Copyright (C) 2012 Free Software Foundation, Inc.
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This file is part of the GNU C Library.
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The GNU C Library is free software; you can redistribute it and/or
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modify it under the terms of the GNU Lesser General Public
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License as published by the Free Software Foundation; either
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version 2.1 of the License, or (at your option) any later version.
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The GNU C Library is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public
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License along with the GNU C Library; if not, see
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<http://www.gnu.org/licenses/>. */
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/* Before including this file, the including file must have included
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<bits/environments.h> (generally via <unistd.h>) and must have
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defined the following macros, exactly one of which will be called
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for each POSIX environment:
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KNOWN_PRESENT_ENVIRONMENT, for POSIX environments that are known to
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be supported in this libc.
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KNOWN_ABSENT_ENVIRONMENT, for POSIX environments that are known not
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to be supported on this system.
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UNKNOWN_ENVIRONMENT, for POSIX environments not supported in this
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libc but possibly supported by another libc on the same system,
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that can be selected using the same compiler but different
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compilation options.
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Each macro has arguments (SC_PREFIX, ENV_PREFIX, SUFFIX). The
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corresponding argument to sysconf is _SC_##SC_PREFIX##_##SUFFIX.
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The environment name, as used with getconf, is
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ENV_PREFIX##_##SUFFIX, and the corresponding macro is the same with
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a leading "_".
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In addition, the macros START_ENV_GROUP and END_ENV_GROUP must be
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defined. These are called with arguments V5, V6, V7 before and
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after the relevant groups of environments. */
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START_ENV_GROUP (V7)
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#if _POSIX_V7_ILP32_OFF32 > 0
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KNOWN_PRESENT_ENVIRONMENT (V7, POSIX_V7, ILP32_OFF32)
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#elif defined _POSIX_V7_ILP32_OFF32
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KNOWN_ABSENT_ENVIRONMENT (V7, POSIX_V7, ILP32_OFF32)
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#else
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UNKNOWN_ENVIRONMENT (V7, POSIX_V7, ILP32_OFF32)
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#endif
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#if _POSIX_V7_ILP32_OFFBIG > 0
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KNOWN_PRESENT_ENVIRONMENT (V7, POSIX_V7, ILP32_OFFBIG)
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#elif defined _POSIX_V7_ILP32_OFFBIG
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KNOWN_ABSENT_ENVIRONMENT (V7, POSIX_V7, ILP32_OFFBIG)
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#else
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UNKNOWN_ENVIRONMENT (V7, POSIX_V7, ILP32_OFFBIG)
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#endif
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#if _POSIX_V7_LP64_OFF64 > 0
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KNOWN_PRESENT_ENVIRONMENT (V7, POSIX_V7, LP64_OFF64)
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#elif defined _POSIX_V7_LP64_OFF64
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KNOWN_ABSENT_ENVIRONMENT (V7, POSIX_V7, LP64_OFF64)
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#else
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UNKNOWN_ENVIRONMENT (V7, POSIX_V7, LP64_OFF64)
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#endif
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#if _POSIX_V7_LPBIG_OFFBIG > 0
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KNOWN_PRESENT_ENVIRONMENT (V7, POSIX_V7, LPBIG_OFFBIG)
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#elif defined _POSIX_V7_LPBIG_OFFBIG
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KNOWN_ABSENT_ENVIRONMENT (V7, POSIX_V7, LPBIG_OFFBIG)
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#else
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UNKNOWN_ENVIRONMENT (V7, POSIX_V7, LPBIG_OFFBIG)
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#endif
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END_ENV_GROUP (V7)
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START_ENV_GROUP (V6)
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#if _POSIX_V6_ILP32_OFF32 > 0
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KNOWN_PRESENT_ENVIRONMENT (V6, POSIX_V6, ILP32_OFF32)
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#elif defined _POSIX_V6_ILP32_OFF32
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KNOWN_ABSENT_ENVIRONMENT (V6, POSIX_V6, ILP32_OFF32)
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#else
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UNKNOWN_ENVIRONMENT (V6, POSIX_V6, ILP32_OFF32)
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#endif
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#if _POSIX_V6_ILP32_OFFBIG > 0
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KNOWN_PRESENT_ENVIRONMENT (V6, POSIX_V6, ILP32_OFFBIG)
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#elif defined _POSIX_V6_ILP32_OFFBIG
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KNOWN_ABSENT_ENVIRONMENT (V6, POSIX_V6, ILP32_OFFBIG)
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#else
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UNKNOWN_ENVIRONMENT (V6, POSIX_V6, ILP32_OFFBIG)
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#endif
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#if _POSIX_V6_LP64_OFF64 > 0
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KNOWN_PRESENT_ENVIRONMENT (V6, POSIX_V6, LP64_OFF64)
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#elif defined _POSIX_V6_LP64_OFF64
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KNOWN_ABSENT_ENVIRONMENT (V6, POSIX_V6, LP64_OFF64)
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#else
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UNKNOWN_ENVIRONMENT (V6, POSIX_V6, LP64_OFF64)
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#endif
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#if _POSIX_V6_LPBIG_OFFBIG > 0
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KNOWN_PRESENT_ENVIRONMENT (V6, POSIX_V6, LPBIG_OFFBIG)
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#elif defined _POSIX_V6_LPBIG_OFFBIG
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KNOWN_ABSENT_ENVIRONMENT (V6, POSIX_V6, LPBIG_OFFBIG)
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#else
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UNKNOWN_ENVIRONMENT (V6, POSIX_V6, LPBIG_OFFBIG)
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#endif
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END_ENV_GROUP (V6)
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START_ENV_GROUP (V5)
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#if _XBS5_ILP32_OFF32 > 0
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KNOWN_PRESENT_ENVIRONMENT (XBS5, XBS5, ILP32_OFF32)
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#elif defined _XBS5_ILP32_OFF32
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KNOWN_ABSENT_ENVIRONMENT (XBS5, XBS5, ILP32_OFF32)
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#else
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UNKNOWN_ENVIRONMENT (XBS5, XBS5, ILP32_OFF32)
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#endif
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#if _XBS5_ILP32_OFFBIG > 0
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KNOWN_PRESENT_ENVIRONMENT (XBS5, XBS5, ILP32_OFFBIG)
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#elif defined _XBS5_ILP32_OFFBIG
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KNOWN_ABSENT_ENVIRONMENT (XBS5, XBS5, ILP32_OFFBIG)
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#else
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UNKNOWN_ENVIRONMENT (XBS5, XBS5, ILP32_OFFBIG)
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#endif
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#if _XBS5_LP64_OFF64 > 0
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KNOWN_PRESENT_ENVIRONMENT (XBS5, XBS5, LP64_OFF64)
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#elif defined _XBS5_LP64_OFF64
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KNOWN_ABSENT_ENVIRONMENT (XBS5, XBS5, LP64_OFF64)
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#else
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UNKNOWN_ENVIRONMENT (XBS5, XBS5, LP64_OFF64)
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#endif
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#if _XBS5_LPBIG_OFFBIG > 0
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KNOWN_PRESENT_ENVIRONMENT (XBS5, XBS5, LPBIG_OFFBIG)
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#elif defined _XBS5_LPBIG_OFFBIG
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KNOWN_ABSENT_ENVIRONMENT (XBS5, XBS5, LPBIG_OFFBIG)
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#else
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UNKNOWN_ENVIRONMENT (XBS5, XBS5, LPBIG_OFFBIG)
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#endif
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END_ENV_GROUP (V5)
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