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| 2 | pj | 1 | /* Copyright (C) 1999 Free Software Foundation, Inc. |
| 2 | This file is part of the GNU C Library. |
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| 3 | |||
| 4 | The GNU C Library is free software; you can redistribute it and/or |
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| 5 | modify it under the terms of the GNU Library General Public License as |
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| 6 | published by the Free Software Foundation; either version 2 of the |
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| 7 | License, or (at your option) any later version. |
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| 8 | |||
| 9 | The GNU C Library is distributed in the hope that it will be useful, |
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| 10 | but WITHOUT ANY WARRANTY; without even the implied warranty of |
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| 11 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
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| 12 | Library General Public License for more details. |
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| 13 | |||
| 14 | You should have received a copy of the GNU Library General Public |
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| 15 | License along with the GNU C Library; see the file COPYING.LIB. If not, |
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| 16 | write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330, |
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| 17 | Boston, MA 02111-1307, USA. */ |
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| 18 | |||
| 19 | #ifndef _UNISTD_H |
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| 20 | # error "Never include this file directly. Use <unistd.h> instead" |
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| 21 | #endif |
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| 22 | |||
| 23 | #include <bits/wordsize.h> |
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| 24 | |||
| 25 | /* This header should define the following symbols under the described |
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| 26 | situations. A value `1' means that the model is always supported, |
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| 27 | `-1' means it is never supported. Undefined means it cannot be |
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| 28 | statically decided. |
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| 29 | |||
| 30 | _XBS5_ILP32_OFF32 32bit int, long, pointers, and off_t type |
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| 31 | _XBS5_ILP32_OFFBIG 32bit int, long, and pointers and larger off_t type |
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| 32 | |||
| 33 | _XBS5_LP64_OFF32 64bit long and pointers and 32bit off_t type |
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| 34 | _XBS5_LPBIG_OFFBIG 64bit long and pointers and large off_t type |
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| 35 | */ |
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| 36 | |||
| 37 | #if __WORDSIZE == 64 |
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| 38 | |||
| 39 | /* We can never provide environments with 32-bit wide pointers. */ |
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| 40 | # define _XBS5_ILP32_OFF32 -1 |
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| 41 | # define _XBS5_ILP32_OFFBIG -1 |
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| 42 | |||
| 43 | /* By default we have 64-bit wide `long int', pointers and `off_t'. */ |
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| 44 | # define _XBS5_LP64_OFF32 1 |
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| 45 | # define _XBS5_LPBIG_OFFBIG 1 |
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| 46 | |||
| 47 | #else /* __WORDSIZE == 32 */ |
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| 48 | |||
| 49 | /* By default we have 32-bit wide `int', `long int', pointers and `off_t'. */ |
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| 50 | # define _XBS5_ILP32_OFF32 1 |
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| 51 | |||
| 52 | /* We optionally provide an environment with the above size but an 64-bit |
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| 53 | side `off_t'. Therefore we don't define _XBS5_ILP32_OFFBIG. */ |
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| 54 | |||
| 55 | /* We can never provide environments with 64-bit wide pointers. */ |
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| 56 | # define _XBS5_LP64_OFF64 -1 |
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| 57 | # define _XBS5_LPBIG_OFFBIG -1 |
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| 58 | |||
| 59 | #endif /* __WORDSIZE == 32 */ |