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+/* System dependent declarations.
+
+ Modified for KDiff3 by Joachim Eibl 2003.
+ The original file was part of GNU DIFF.
+
+ Copyright (C) 1988, 1989, 1992, 1993, 1994, 1995, 1998, 2001, 2002
+ Free Software Foundation, Inc.
+
+ GNU DIFF is free software; you can redistribute it and/or modify
+ it under the terms of the GNU General Public License as published by
+ the Free Software Foundation; either version 2, or (at your option)
+ any later version.
+
+ GNU DIFF 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 General Public License for more details.
+
+ You should have received a copy of the GNU General Public License
+ along with this program; see the file COPYING.
+ If not, write to the Free Software Foundation,
+ 51 Franklin Steet, Fifth Floor, Boston, MA 02110-1301, USA. */
+
+#ifndef GNUDIFF_SYSTEM_H
+#define GNUDIFF_SYSTEM_H
+
+//#include <config.h>
+
+
+
+/* Don't bother to support K&R C compilers any more; it's not worth
+ the trouble. These macros prevent some library modules from being
+ compiled in K&R C mode. */
+#define PARAMS(Args) Args
+#define PROTOTYPES 1
+
+/* Verify a requirement at compile-time (unlike assert, which is runtime). */
+#define verify(name, assertion) struct name { char a[(assertion) ? 1 : -1]; }
+
+
+/* Determine whether an integer type is signed, and its bounds.
+ This code assumes two's (or one's!) complement with no holes. */
+
+/* The extra casts work around common compiler bugs,
+ e.g. Cray C 5.0.3.0 when t == time_t. */
+#ifndef TYPE_SIGNED
+# define TYPE_SIGNED(t) (! ((t) 0 < (t) -1))
+#endif
+#ifndef TYPE_MINIMUM
+# define TYPE_MINIMUM(t) ((t) (TYPE_SIGNED (t) \
+ ? ~ (t) 0 << (sizeof (t) * CHAR_BIT - 1) \
+ : (t) 0))
+#endif
+#ifndef TYPE_MAXIMUM
+# define TYPE_MAXIMUM(t) ((t) (~ (t) 0 - TYPE_MINIMUM (t)))
+#endif
+
+#include <sys/types.h>
+#include <sys/stat.h>
+
+
+# include <stdlib.h>
+#ifndef EXIT_SUCCESS
+# define EXIT_SUCCESS 0
+#endif
+#if !EXIT_FAILURE
+# undef EXIT_FAILURE /* Sony NEWS-OS 4.0C defines EXIT_FAILURE to 0. */
+# define EXIT_FAILURE 1
+#endif
+#define EXIT_TROUBLE 2
+
+#include <limits.h>
+#ifndef SSIZE_MAX
+# define SSIZE_MAX TYPE_MAXIMUM (ssize_t)
+#endif
+
+#ifndef PTRDIFF_MAX
+# define PTRDIFF_MAX TYPE_MAXIMUM (ptrdiff_t)
+#endif
+#ifndef SIZE_MAX
+# define SIZE_MAX TYPE_MAXIMUM (size_t)
+#endif
+#ifndef UINTMAX_MAX
+# define UINTMAX_MAX TYPE_MAXIMUM (uintmax_t)
+#endif
+
+#include <stddef.h>
+#include <string.h>
+#include <ctype.h>
+
+/* CTYPE_DOMAIN (C) is nonzero if the unsigned char C can safely be given
+ as an argument to <ctype.h> macros like `isspace'. */
+# define CTYPE_DOMAIN(c) 1
+#define ISPRINT(c) (CTYPE_DOMAIN (c) && isprint (c))
+#define ISSPACE(c) (CTYPE_DOMAIN (c) && isspace (c))
+
+# define TOLOWER(c) tolower (c)
+
+/* ISDIGIT differs from isdigit, as follows:
+ - Its arg may be any int or unsigned int; it need not be an unsigned char.
+ - It's guaranteed to evaluate its argument exactly once.
+ - It's typically faster.
+ POSIX 1003.1-2001 says that only '0' through '9' are digits.
+ Prefer ISDIGIT to isdigit unless it's important to use the locale's
+ definition of `digit' even when the host does not conform to POSIX. */
+#define ISDIGIT(c) ((unsigned int) (c) - '0' <= 9)
+
+#undef MIN
+#undef MAX
+#define MIN(a, b) ((a) <= (b) ? (a) : (b))
+#define MAX(a, b) ((a) >= (b) ? (a) : (b))
+
+
+/* The integer type of a line number. Since files are read into main
+ memory, ptrdiff_t should be wide enough. */
+
+typedef ptrdiff_t lin;
+#define LIN_MAX PTRDIFF_MAX
+verify (lin_is_signed, TYPE_SIGNED (lin));
+verify (lin_is_wide_enough, sizeof (ptrdiff_t) <= sizeof (lin));
+verify (lin_is_printable_as_long, sizeof (lin) <= sizeof (long));
+
+#endif