1/*
2 * jconfig.txt
3 *
4 * Copyright (C) 1991-1994, Thomas G. Lane.
5 * Modified 2009-2013 by Guido Vollbeding.
6 * This file is part of the Independent JPEG Group's software.
7 * For conditions of distribution and use, see the accompanying README file.
8 *
9 * This file documents the configuration options that are required to
10 * customize the JPEG software for a particular system.
11 *
12 * The actual configuration options for a particular installation are stored
13 * in jconfig.h.  On many machines, jconfig.h can be generated automatically
14 * or copied from one of the "canned" jconfig files that we supply.  But if
15 * you need to generate a jconfig.h file by hand, this file tells you how.
16 *
17 * DO NOT EDIT THIS FILE --- IT WON'T ACCOMPLISH ANYTHING.
18 * EDIT A COPY NAMED JCONFIG.H.
19 */
20
21
22/*
23 * These symbols indicate the properties of your machine or compiler.
24 * #define the symbol if yes, #undef it if no.
25 */
26
27/* Does your compiler support function prototypes?
28 * (If not, you also need to use ansi2knr, see install.txt)
29 */
30#define HAVE_PROTOTYPES
31
32/* Does your compiler support the declaration "unsigned char" ?
33 * How about "unsigned short" ?
34 */
35#define HAVE_UNSIGNED_CHAR
36#define HAVE_UNSIGNED_SHORT
37
38/* Define "void" as "char" if your compiler doesn't know about type void.
39 * NOTE: be sure to define void such that "void *" represents the most general
40 * pointer type, e.g., that returned by malloc().
41 */
42/* #define void char */
43
44/* Define "const" as empty if your compiler doesn't know the "const" keyword.
45 */
46/* #define const */
47
48/* Define this if an ordinary "char" type is unsigned.
49 * If you're not sure, leaving it undefined will work at some cost in speed.
50 * If you defined HAVE_UNSIGNED_CHAR then the speed difference is minimal.
51 */
52#undef CHAR_IS_UNSIGNED
53
54/* Define this if your system has an ANSI-conforming <stddef.h> file.
55 */
56#define HAVE_STDDEF_H
57
58/* Define this if your system has an ANSI-conforming <stdlib.h> file.
59 */
60#define HAVE_STDLIB_H
61
62/* Define this if your system does not have an ANSI/SysV <string.h>,
63 * but does have a BSD-style <strings.h>.
64 */
65#undef NEED_BSD_STRINGS
66
67/* Define this if your system does not provide typedef size_t in any of the
68 * ANSI-standard places (stddef.h, stdlib.h, or stdio.h), but places it in
69 * <sys/types.h> instead.
70 */
71#undef NEED_SYS_TYPES_H
72
73/* For 80x86 machines, you need to define NEED_FAR_POINTERS,
74 * unless you are using a large-data memory model or 80386 flat-memory mode.
75 * On less brain-damaged CPUs this symbol must not be defined.
76 * (Defining this symbol causes large data structures to be referenced through
77 * "far" pointers and to be allocated with a special version of malloc.)
78 */
79#undef NEED_FAR_POINTERS
80
81/* Define this if your linker needs global names to be unique in less
82 * than the first 15 characters.
83 */
84#undef NEED_SHORT_EXTERNAL_NAMES
85
86/* Although a real ANSI C compiler can deal perfectly well with pointers to
87 * unspecified structures (see "incomplete types" in the spec), a few pre-ANSI
88 * and pseudo-ANSI compilers get confused.  To keep one of these bozos happy,
89 * define INCOMPLETE_TYPES_BROKEN.  This is not recommended unless you
90 * actually get "missing structure definition" warnings or errors while
91 * compiling the JPEG code.
92 */
93#undef INCOMPLETE_TYPES_BROKEN
94
95/* Define "boolean" as unsigned char, not enum, on Windows systems.
96 */
97#ifdef _WIN32
98#ifndef __RPCNDR_H__		/* don't conflict if rpcndr.h already read */
99typedef unsigned char boolean;
100#endif
101#ifndef FALSE			/* in case these macros already exist */
102#define FALSE	0		/* values of boolean */
103#endif
104#ifndef TRUE
105#define TRUE	1
106#endif
107#define HAVE_BOOLEAN		/* prevent jmorecfg.h from redefining it */
108#endif
109
110
111/*
112 * The following options affect code selection within the JPEG library,
113 * but they don't need to be visible to applications using the library.
114 * To minimize application namespace pollution, the symbols won't be
115 * defined unless JPEG_INTERNALS has been defined.
116 */
117
118#ifdef JPEG_INTERNALS
119
120/* Define this if your compiler implements ">>" on signed values as a logical
121 * (unsigned) shift; leave it undefined if ">>" is a signed (arithmetic) shift,
122 * which is the normal and rational definition.
123 */
124#undef RIGHT_SHIFT_IS_UNSIGNED
125
126
127#endif /* JPEG_INTERNALS */
128
129
130/*
131 * The remaining options do not affect the JPEG library proper,
132 * but only the sample applications cjpeg/djpeg (see cjpeg.c, djpeg.c).
133 * Other applications can ignore these.
134 */
135
136#ifdef JPEG_CJPEG_DJPEG
137
138/* These defines indicate which image (non-JPEG) file formats are allowed. */
139
140#define BMP_SUPPORTED		/* BMP image file format */
141#define GIF_SUPPORTED		/* GIF image file format */
142#define PPM_SUPPORTED		/* PBMPLUS PPM/PGM image file format */
143#undef RLE_SUPPORTED		/* Utah RLE image file format */
144#define TARGA_SUPPORTED		/* Targa image file format */
145
146/* Define this if you want to name both input and output files on the command
147 * line, rather than using stdout and optionally stdin.  You MUST do this if
148 * your system can't cope with binary I/O to stdin/stdout.  See comments at
149 * head of cjpeg.c or djpeg.c.
150 */
151#undef TWO_FILE_COMMANDLINE
152
153/* Define this if your system needs explicit cleanup of temporary files.
154 * This is crucial under MS-DOS, where the temporary "files" may be areas
155 * of extended memory; on most other systems it's not as important.
156 */
157#undef NEED_SIGNAL_CATCHER
158
159/* By default, we open image files with fopen(...,"rb") or fopen(...,"wb").
160 * This is necessary on systems that distinguish text files from binary files,
161 * and is harmless on most systems that don't.  If you have one of the rare
162 * systems that complains about the "b" spec, define this symbol.
163 */
164#undef DONT_USE_B_MODE
165
166/* Define this if you want percent-done progress reports from cjpeg/djpeg.
167 */
168#undef PROGRESS_REPORT
169
170
171#endif /* JPEG_CJPEG_DJPEG */
172