text: /* Copyright (C) 1999-2018 Free Software Foundation, Inc.
     This file is part of the GNU C Library.
  
     The GNU C Library is free software; you can redistribute it and/or
     modify it under the terms of the GNU Lesser General Public
     License as published by the Free Software Foundation; either
     version 2.1 of the License, or (at your option) any later version.
  
     The GNU C Library is distributed in the hope that it will be useful,
     but WITHOUT ANY WARRANTY; without even the implied warranty of
     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
     Lesser General Public License for more details.
  
     You should have received a copy of the GNU Lesser General Public
     License along with the GNU C Library; if not, see
     <http://www.gnu.org/licenses/>.  */
  
  #ifndef _UNISTD_H
  #error "Never include this file directly.  Use <unistd.h> instead"
  #endif
  
  #include <bits/wordsize.h>
  
  /* This header should define the following symbols under the described
     situations.  A value `1' means that the model is always supported,
     `-1' means it is never supported.  Undefined means it cannot be
     statically decided.
  
     _POSIX_V7_ILP32_OFF32   32bit int, long, pointers, and off_t type
     _POSIX_V7_ILP32_OFFBIG  32bit int, long, and pointers and larger off_t type
  
     _POSIX_V7_LP64_OFF32	   64bit long and pointers and 32bit off_t type
     _POSIX_V7_LPBIG_OFFBIG  64bit long and pointers and large off_t type
  
     The macros _POSIX_V6_ILP32_OFF32, _POSIX_V6_ILP32_OFFBIG,
     _POSIX_V6_LP64_OFF32, _POSIX_V6_LPBIG_OFFBIG, _XBS5_ILP32_OFF32,
     _XBS5_ILP32_OFFBIG, _XBS5_LP64_OFF32, and _XBS5_LPBIG_OFFBIG were
     used in previous versions of the Unix standard and are available
     only for compatibility.
  */
  
  #if __WORDSIZE == 64
  
  /* Environments with 32-bit wide pointers are optionally provided.
     Therefore following macros aren't defined:
     # undef _POSIX_V7_ILP32_OFF32
     # undef _POSIX_V7_ILP32_OFFBIG
     # undef _POSIX_V6_ILP32_OFF32
     # undef _POSIX_V6_ILP32_OFFBIG
     # undef _XBS5_ILP32_OFF32
     # undef _XBS5_ILP32_OFFBIG
     and users need to check at runtime.  */
  
  /* We also have no use (for now) for an environment with bigger pointers
     and offsets.  */
  #define _POSIX_V7_LPBIG_OFFBIG -1
  #define _POSIX_V6_LPBIG_OFFBIG -1
  #define _XBS5_LPBIG_OFFBIG -1
  
  /* By default we have 64-bit wide `long int', pointers and `off_t'.  */
  #define _POSIX_V7_LP64_OFF64 1
  #define _POSIX_V6_LP64_OFF64 1
  #define _XBS5_LP64_OFF64 1
  
  #else /* __WORDSIZE == 32 */
  
  /* We have 32-bit wide `int', `long int' and pointers and all platforms
     support LFS.  -mx32 has 64-bit wide `off_t'.  */
  #define _POSIX_V7_ILP32_OFFBIG 1
  #define _POSIX_V6_ILP32_OFFBIG 1
  #define _XBS5_ILP32_OFFBIG 1
  
  #ifndef __x86_64__
  /* -m32 has 32-bit wide `off_t'.  */
  #define _POSIX_V7_ILP32_OFF32 1
  #define _POSIX_V6_ILP32_OFF32 1
  #define _XBS5_ILP32_OFF32 1
  #endif
  
  /* We optionally provide an environment with the above size but an 64-bit
     side `off_t'.  Therefore we don't define _POSIX_V7_ILP32_OFFBIG.  */
  
  /* Environments with 64-bit wide pointers can be provided,
     so these macros aren't defined:
     # undef _POSIX_V7_LP64_OFF64
     # undef _POSIX_V7_LPBIG_OFFBIG
     # undef _POSIX_V6_LP64_OFF64
     # undef _POSIX_V6_LPBIG_OFFBIG
     # undef _XBS5_LP64_OFF64
     # undef _XBS5_LPBIG_OFFBIG
     and sysconf tests for it at runtime.  */
  
  #endif /* __WORDSIZE == 32 */
  
  #define __ILP32_OFF32_CFLAGS "-m32"
  #define __ILP32_OFF32_LDFLAGS "-m32"
  #if defined __x86_64__ && defined __ILP32__
  #define __ILP32_OFFBIG_CFLAGS "-mx32"
  #define __ILP32_OFFBIG_LDFLAGS "-mx32"
  #else
  #define __ILP32_OFFBIG_CFLAGS "-m32 -D_LARGEFILE_SOURCE -D_FILE_OFFSET_BITS=64"
  #define __ILP32_OFFBIG_LDFLAGS "-m32"
  #endif
  #define __LP64_OFF64_CFLAGS "-m64"
  #define __LP64_OFF64_LDFLAGS "-m64"
  