Initial revision

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diff --git a/libtiff/tiffcomp.h b/libtiff/tiffcomp.h
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+/* $Header: /cvs/maptools/cvsroot/libtiff/libtiff/Attic/tiffcomp.h,v 1.1 1999-07-27 21:50:27 mike Exp $ */
+
+/*
+ * Copyright (c) 1990-1997 Sam Leffler
+ * Copyright (c) 1991-1997 Silicon Graphics, Inc.
+ *
+ * Permission to use, copy, modify, distribute, and sell this software and 
+ * its documentation for any purpose is hereby granted without fee, provided
+ * that (i) the above copyright notices and this permission notice appear in
+ * all copies of the software and related documentation, and (ii) the names of
+ * Sam Leffler and Silicon Graphics may not be used in any advertising or
+ * publicity relating to the software without the specific, prior written
+ * permission of Sam Leffler and Silicon Graphics.
+ * 
+ * THE SOFTWARE IS PROVIDED "AS-IS" AND WITHOUT WARRANTY OF ANY KIND, 
+ * EXPRESS, IMPLIED OR OTHERWISE, INCLUDING WITHOUT LIMITATION, ANY 
+ * WARRANTY OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE.  
+ * 
+ * IN NO EVENT SHALL SAM LEFFLER OR SILICON GRAPHICS BE LIABLE FOR
+ * ANY SPECIAL, INCIDENTAL, INDIRECT OR CONSEQUENTIAL DAMAGES OF ANY KIND,
+ * OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS,
+ * WHETHER OR NOT ADVISED OF THE POSSIBILITY OF DAMAGE, AND ON ANY THEORY OF 
+ * LIABILITY, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE 
+ * OF THIS SOFTWARE.
+ */
+
+#ifndef _COMPAT_
+#define	_COMPAT_
+/*
+ * This file contains a hodgepodge of definitions and
+ * declarations that are needed to provide compatibility
+ * between the native system and the base implementation
+ * that the library assumes.
+ *
+ * NB: This file is a mess.
+ */
+
+/*
+ * Setup basic type definitions and function declaratations.
+ */
+
+/*
+ * Simplify Acorn RISC OS identifier (to avoid confusion with Acorn RISC iX
+ * and with defunct Unix Risc OS)
+ * No need to specify __arm - hey, Acorn might port the OS, no problem here!
+ */
+#ifdef __acornriscos
+#undef __acornriscos
+#endif
+#if defined(__acorn) && defined(__riscos)
+#define __acornriscos
+#endif
+
+#if defined(__MWERKS__) || defined(THINK_C)
+#include <unix.h>
+#include <math.h>
+#endif
+
+#include <stdio.h>
+
+#if defined(__PPCC__) || defined(__SC__) || defined(__MRC__)
+#include <types.h>
+#elif !defined(__MWERKS__) && !defined(THINK_C) && !defined(__acornriscos) && !defined(applec)
+#include <sys/types.h>
+#endif
+
+#if defined(VMS)
+#include <file.h>
+#include <unixio.h>
+#elif !defined(__acornriscos)
+#include <fcntl.h>
+#endif
+
+/*
+ * This maze of checks controls defines or not the
+ * target system has BSD-style typdedefs declared in
+ * an include file and/or whether or not to include
+ * <unistd.h> to get the SEEK_* definitions.  Some
+ * additional includes are also done to pull in the
+ * appropriate definitions we're looking for.
+ */
+#if defined(__MWERKS__) || defined(THINK_C) || defined(__PPCC__) || defined(__SC__) || defined(__MRC__)
+#include <stdlib.h>
+#define	BSDTYPES
+#define	HAVE_UNISTD_H	0
+#elif defined(_WINDOWS) || defined(__WIN32__) || defined(_Windows)
+#define	BSDTYPES
+#elif defined(OS2_16) || defined(OS2_32)
+#define	BSDTYPES
+#elif defined(__acornriscos)
+#include <stdlib.h>
+#define	BSDTYPES
+#define	HAVE_UNISTD_H	0
+#elif defined(VMS)
+#define	HAVE_UNISTD_H	0
+#else
+#define	HAVE_UNISTD_H	1
+#endif
+
+/*
+ * The library uses the ANSI C/POSIX SEEK_*
+ * definitions that should be defined in unistd.h
+ * (except on system where they are in stdio.h and
+ * there is no unistd.h).
+ */
+#if !defined(SEEK_SET) && HAVE_UNISTD_H
+#include <unistd.h>
+#endif
+
+/*
+ * The library uses memset, memcpy, and memcmp.
+ * ANSI C and System V define these in string.h.
+ */
+#include <string.h>
+
+/*
+ * The BSD typedefs are used throughout the library.
+ * If your system doesn't have them in <sys/types.h>,
+ * then define BSDTYPES in your Makefile.
+ */
+#if defined(BSDTYPES)
+typedef	unsigned char u_char;
+typedef	unsigned short u_short;
+typedef	unsigned int u_int;
+typedef	unsigned long u_long;
+#endif
+
+/*
+ * dblparam_t is the type that a double precision
+ * floating point value will have on the parameter
+ * stack (when coerced by the compiler).
+ */
+/* Note: on MacPowerPC "extended" is undefined. So only use it for 68K-Macs */
+#if defined(__SC__) || defined(THINK_C)
+typedef extended dblparam_t;
+#else
+typedef double dblparam_t;
+#endif
+
+/*
+ * If your compiler supports inline functions, then
+ * set INLINE appropriately to get the known hotspots
+ * in the library expanded inline.
+ */
+#if defined(__GNUC__)
+#if defined(__STRICT_ANSI__)
+#define	INLINE	__inline__
+#else
+#define	INLINE	inline
+#endif
+#else /* !__GNUC__ */
+#define	INLINE
+#endif
+
+/*
+ * GLOBALDATA is a macro that is used to define global variables
+ * private to the library.  We use this indirection to hide
+ * brain-damage in VAXC (and GCC) under VAX/VMS.  In these
+ * environments the macro places the variable in a non-shareable
+ * program section, which ought to be done by default (sigh!)
+ *
+ * Apparently DEC are aware of the problem as this behaviour is the
+ * default under VMS on AXP.
+ *
+ * The GNU C variant is untested.
+ */
+#if defined(VAX) && defined(VMS)
+#if defined(VAXC)
+#define GLOBALDATA(TYPE,NAME)	extern noshare TYPE NAME
+#endif
+#if defined(__GNUC__)
+#define GLOBALDATA(TYPE,NAME)	extern TYPE NAME \
+	asm("_$$PsectAttributes_NOSHR$$" #NAME)
+#endif
+#else	/* !VAX/VMS */
+#define GLOBALDATA(TYPE,NAME)	extern TYPE NAME
+#endif
+
+#if defined(__acornriscos)
+/*
+ * osfcn.h is part of C++Lib on Acorn C/C++, and as such can't be used
+ * on C alone. For that reason, the relevant functions are
+ * implemented in tif_acorn.c, and the elements from the header
+ * file are included here.
+ */
+#if defined(__cplusplus)
+#include <osfcn.h>
+#else
+#define	O_RDONLY	0
+#define	O_WRONLY	1
+#define	O_RDWR		2
+#define	O_APPEND	8
+#define	O_CREAT		0x200
+#define	O_TRUNC		0x400
+typedef long off_t;
+extern int open(const char *name, int flags, int mode);
+extern int close(int fd);
+extern int write(int fd, const char *buf, int nbytes);
+extern int read(int fd, char *buf, int nbytes);
+extern off_t lseek(int fd, off_t offset, int whence);
+extern int creat(const char *path, int mode);
+#endif /* __cplusplus */
+#endif /* __acornriscos */
+
+/* Bit and byte order, the default is MSB to LSB */
+#ifdef VMS
+#undef HOST_FILLORDER
+#undef HOST_BIGENDIAN
+#define HOST_FILLORDER FILLORDER_LSB2MSB
+#define HOST_BIGENDIAN	0
+#endif
+
+
+#endif /* _COMPAT_ */