/*

 * jconfig.doc

 *

 * Copyright (C) 1991-1994, Thomas G. Lane.

 * This file is part of the Independent JPEG Group's software.

 * For conditions of distribution and use, see the accompanying README file.

 *

 * This file documents the configuration options that are required to

 * customize the JPEG software for a particular system.

 *

 * The actual configuration options for a particular installation are stored

 * in jconfig.h.  On many machines, jconfig.h can be generated automatically

 * or copied from one of the "canned" jconfig files that we supply.  But if

 * you need to generate a jconfig.h file by hand, this file tells you how.

 *

 * DO NOT EDIT THIS FILE --- IT WON'T ACCOMPLISH ANYTHING.

 * EDIT A COPY NAMED JCONFIG.H.

 */

/*

 * These symbols indicate the properties of your machine or compiler.

 * #define the symbol if yes, #undef it if no.

 */

/* Does your compiler support function prototypes?

 * (If not, you also need to use ansi2knr, see install.doc)

 */

#define HAVE_PROTOTYPES

/* Does your compiler support the declaration "unsigned char" ?

 * How about "unsigned short" ?

 */

#define HAVE_UNSIGNED_CHAR

#define HAVE_UNSIGNED_SHORT

/* Define "void" as "char" if your compiler doesn't know about type void.

 * NOTE: be sure to define void such that "void *" represents the most general

 * pointer type, e.g., that returned by malloc().

 */

/* #define void char */

/* Define "const" as empty if your compiler doesn't know the "const" keyword.

 */

/* #define const */

/* Define this if an ordinary "char" type is unsigned.

 * If you're not sure, leaving it undefined will work at some cost in speed.

 * If you defined HAVE_UNSIGNED_CHAR then the speed difference is minimal.

 */

#undef CHAR_IS_UNSIGNED

/* Define this if your system has an ANSI-conforming <stddef.h> file.

 */

#define HAVE_STDDEF_H

/* Define this if your system has an ANSI-conforming <stdlib.h> file.

 */

#define HAVE_STDLIB_H

/* Define this if your system does not have an ANSI/SysV <string.h>,

 * but does have a BSD-style <strings.h>.

 */

#undef NEED_BSD_STRINGS

/* Define this if your system does not provide typedef size_t in any of the

 * ANSI-standard places (stddef.h, stdlib.h, or stdio.h), but places it in

 * <sys/types.h> instead.

 */

#undef NEED_SYS_TYPES_H

/* For 80x86 machines, you need to define NEED_FAR_POINTERS,

 * unless you are using a large-data memory model or 80386 flat-memory mode.

 * On less brain-damaged CPUs this symbol must not be defined.

 * (Defining this symbol causes large data structures to be referenced through

 * "far" pointers and to be allocated with a special version of malloc.)

 */

#undef NEED_FAR_POINTERS

/* Define this if your linker needs global names to be unique in less

 * than the first 15 characters.

 */

#undef NEED_SHORT_EXTERNAL_NAMES

/* Although a real ANSI C compiler can deal perfectly well with pointers to

 * unspecified structures (see "incomplete types" in the spec), a few pre-ANSI

 * and pseudo-ANSI compilers get confused.  To keep one of these bozos happy,

 * define INCOMPLETE_TYPES_BROKEN.  This is not recommended unless you

 * actually get "missing structure definition" warnings or errors while

 * compiling the JPEG code.

 */

#undef INCOMPLETE_TYPES_BROKEN

/*

 * The following options affect code selection within the JPEG library,

 * but they don't need to be visible to applications using the library.

 * To minimize application namespace pollution, the symbols won't be

 * defined unless JPEG_INTERNALS has been defined.

 */

#ifdef JPEG_INTERNALS

/* Define this if your compiler implements ">>" on signed values as a logical

 * (unsigned) shift; leave it undefined if ">>" is a signed (arithmetic) shift,

 * which is the normal and rational definition.

 */

#undef RIGHT_SHIFT_IS_UNSIGNED

#endif /* JPEG_INTERNALS */

/*

 * The remaining options do not affect the JPEG library proper,

 * but only the sample applications cjpeg/djpeg (see cjpeg.c, djpeg.c).

 * Other applications can ignore these.

 */

#ifdef JPEG_CJPEG_DJPEG

/* These defines indicate which image (non-JPEG) file formats are allowed. */

#define BMP_SUPPORTED		/* BMP image file format */

#define GIF_SUPPORTED		/* GIF image file format */

#define PPM_SUPPORTED		/* PBMPLUS PPM/PGM image file format */

#undef RLE_SUPPORTED		/* Utah RLE image file format */

#define TARGA_SUPPORTED		/* Targa image file format */

/* Define this if you want to name both input and output files on the command

 * line, rather than using stdout and optionally stdin.  You MUST do this if

 * your system can't cope with binary I/O to stdin/stdout.  See comments at

 * head of cjpeg.c or djpeg.c.

 */

#undef TWO_FILE_COMMANDLINE

/* Define this if your system needs explicit cleanup of temporary files.

 * This is crucial under MS-DOS, where the temporary "files" may be areas

 * of extended memory; on most other systems it's not as important.

 */

#undef NEED_SIGNAL_CATCHER

/* By default, we open image files with fopen(...,"rb") or fopen(...,"wb").

 * This is necessary on systems that distinguish text files from binary files,

 * and is harmless on most systems that don't.  If you have one of the rare

 * systems that complains about the "b" spec, define this symbol.

 */

#undef DONT_USE_B_MODE

/* Define this if you want percent-done progress reports from cjpeg/djpeg.

 */

#undef PROGRESS_REPORT

#endif /* JPEG_CJPEG_DJPEG */