| 1 | /* System dependent declarations.
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| 2 |
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| 3 | Copyright (C) 1988, 1989, 1992, 1993, 1994, 1995, 1998, 2001, 2002
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| 4 | Free Software Foundation, Inc.
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| 5 |
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| 6 | This file is part of GNU DIFF.
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| 7 |
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| 8 | GNU DIFF is free software; you can redistribute it and/or modify
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| 9 | it under the terms of the GNU General Public License as published by
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| 10 | the Free Software Foundation; either version 2, or (at your option)
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| 11 | any later version.
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| 12 |
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| 13 | GNU DIFF is distributed in the hope that it will be useful,
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| 14 | but WITHOUT ANY WARRANTY; without even the implied warranty of
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| 15 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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| 16 | GNU General Public License for more details.
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| 17 |
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| 18 | You should have received a copy of the GNU General Public License
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| 19 | along with this program; see the file COPYING.
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| 20 | If not, write to the Free Software Foundation,
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| 21 | 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */
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| 22 |
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| 23 | #include <config.h>
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| 24 |
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| 25 | /* Don't bother to support K&R C compilers any more; it's not worth
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| 26 | the trouble. These macros prevent some library modules from being
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| 27 | compiled in K&R C mode. */
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| 28 | #define PARAMS(Args) Args
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| 29 | #define PROTOTYPES 1
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| 30 |
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| 31 | /* Define `__attribute__' and `volatile' first
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| 32 | so that they're used consistently in all system includes. */
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| 33 | #if __GNUC__ < 2 || (__GNUC__ == 2 && __GNUC_MINOR__ < 6) || __STRICT_ANSI__
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| 34 | # define __attribute__(x)
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| 35 | #endif
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| 36 | #if defined const && !defined volatile
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| 37 | # define volatile
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| 38 | #endif
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| 39 |
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| 40 | /* Verify a requirement at compile-time (unlike assert, which is runtime). */
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| 41 | #define verify(name, assertion) struct name { char a[(assertion) ? 1 : -1]; }
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| 42 |
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| 43 |
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| 44 | /* Determine whether an integer type is signed, and its bounds.
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| 45 | This code assumes two's (or one's!) complement with no holes. */
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| 46 |
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| 47 | /* The extra casts work around common compiler bugs,
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| 48 | e.g. Cray C 5.0.3.0 when t == time_t. */
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| 49 | #ifndef TYPE_SIGNED
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| 50 | # define TYPE_SIGNED(t) (! ((t) 0 < (t) -1))
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| 51 | #endif
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| 52 | #ifndef TYPE_MINIMUM
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| 53 | # define TYPE_MINIMUM(t) ((t) (TYPE_SIGNED (t) \
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| 54 | ? ~ (t) 0 << (sizeof (t) * CHAR_BIT - 1) \
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| 55 | : (t) 0))
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| 56 | #endif
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| 57 | #ifndef TYPE_MAXIMUM
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| 58 | # define TYPE_MAXIMUM(t) ((t) (~ (t) 0 - TYPE_MINIMUM (t)))
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| 59 | #endif
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| 60 |
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| 61 | #include <sys/types.h>
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| 62 | #include <sys/stat.h>
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| 63 |
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| 64 | #if STAT_MACROS_BROKEN
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| 65 | # undef S_ISBLK
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