/* Copyright (C) 1999, 2001 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, write to the Free Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA. */ #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_V6_ILP32_OFF32 32bit int, long, pointers, and off_t type _POSIX_V6_ILP32_OFFBIG 32bit int, long, and pointers and larger off_t type _POSIX_V6_LP64_OFF32 64bit long and pointers and 32bit off_t type _POSIX_V6_LPBIG_OFFBIG 64bit long and pointers and large off_t type The macros _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 /* We can never provide environments with 32-bit wide pointers. */ # define _POSIX_V6_ILP32_OFF32 -1 # define _POSIX_V6_ILP32_OFFBIG -1 # define _XBS5_ILP32_OFF32 -1 # define _XBS5_ILP32_OFFBIG -1 /* We also have no use (for now) for an environment with bigger pointers and offsets. */ # 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_V6_LP64_OFF64 1 # define _XBS5_LP64_OFF64 1 #else /* __WORDSIZE == 32 */ /* By default we have 32-bit wide `int', `long int', pointers and `off_t' and all platforms support LFS. */ # define _POSIX_V6_ILP32_OFF32 1 # define _POSIX_V6_ILP32_OFFBIG 1 # define _XBS5_ILP32_OFF32 1 # define _XBS5_ILP32_OFFBIG 1 /* We optionally provide an environment with the above size but an 64-bit side `off_t'. Therefore we don't define _XBS5_ILP32_OFFBIG. */ /* We can never provide environments with 64-bit wide pointers. */ # define _POSIX_V6_LP64_OFF64 -1 # define _POSIX_V6_LPBIG_OFFBIG -1 # define _XBS5_LP64_OFF64 -1 # define _XBS5_LPBIG_OFFBIG -1 #endif /* __WORDSIZE == 32 */