1/* zconf.h -- configuration of the zlib compression library
2 * Copyright (C) 1995-2002 Jean-loup Gailly.
3 * For conditions of distribution and use, see copyright notice in zlib.h
4 */
5
6/* @(#) $Id$ */
7
8#ifndef _ZCONF_H
9#define _ZCONF_H
10
11/*
12 * If you *really* need a unique prefix for all types and library functions,
13 * compile with -DZ_PREFIX. The "standard" zlib should be compiled without it.
14 */
15#ifdef Z_PREFIX
16#  define deflateInit_         z_deflateInit_
17#  define deflate              z_deflate
18#  define deflateEnd           z_deflateEnd
19#  define inflateInit_         z_inflateInit_
20#  define inflate              z_inflate
21#  define inflateEnd           z_inflateEnd
22#  define deflateInit2_        z_deflateInit2_
23#  define deflateSetDictionary z_deflateSetDictionary
24#  define deflateCopy          z_deflateCopy
25#  define deflateReset         z_deflateReset
26#  define deflateParams        z_deflateParams
27#  define inflateInit2_        z_inflateInit2_
28#  define inflateSetDictionary z_inflateSetDictionary
29#  define inflateSync          z_inflateSync
30#  define inflateSyncPoint     z_inflateSyncPoint
31#  define inflateReset         z_inflateReset
32#  define compress             z_compress
33#  define compress2            z_compress2
34#  define uncompress           z_uncompress
35#  define adler32              z_adler32
36#  define crc32                z_crc32
37#  define get_crc_table        z_get_crc_table
38
39#  define Byte   z_Byte
40#  define uInt   z_uInt
41#  define uLong  z_uLong
42#  define Bytef  z_Bytef
43#  define charf  z_charf
44#  define intf   z_intf
45#  define uIntf  z_uIntf
46#  define uLongf z_uLongf
47#  define voidpf z_voidpf
48#  define voidp  z_voidp
49#endif
50
51#if (defined(_WIN32) || defined(__WIN32__)) && !defined(WIN32)
52#  define WIN32
53#endif
54#if defined(__GNUC__) || defined(WIN32) || defined(__386__) || defined(i386)
55#  ifndef __32BIT__
56#    define __32BIT__
57#  endif
58#endif
59#if defined(__MSDOS__) && !defined(MSDOS)
60#  define MSDOS
61#endif
62
63/* WinCE doesn't have errno.h */
64#ifdef _WIN32_WCE
65#  define NO_ERRNO_H
66#endif
67
68
69/*
70 * Compile with -DMAXSEG_64K if the alloc function cannot allocate more
71 * than 64k bytes at a time (needed on systems with 16-bit int).
72 */
73#if defined(MSDOS) && !defined(__32BIT__)
74#  define MAXSEG_64K
75#endif
76#ifdef MSDOS
77#  define UNALIGNED_OK
78#endif
79
80#if (defined(MSDOS) || defined(_WINDOWS) || defined(WIN32))  && !defined(STDC)
81#  define STDC
82#endif
83#if defined(__STDC__) || defined(__cplusplus) || defined(__OS2__)
84#  ifndef STDC
85#    define STDC
86#  endif
87#endif
88
89#ifndef STDC
90#  ifndef const /* cannot use !defined(STDC) && !defined(const) on Mac */
91#    define const
92#  endif
93#endif
94
95/* Some Mac compilers merge all .h files incorrectly: */
96#if defined(__MWERKS__) || defined(applec) ||defined(THINK_C) ||defined(__SC__)
97#  define NO_DUMMY_DECL
98#endif
99
100/* Old Borland C and LCC incorrectly complains about missing returns: */
101#if defined(__BORLANDC__) && (__BORLANDC__ < 0x500)
102#  define NEED_DUMMY_RETURN
103#endif
104
105#if defined(__LCC__)
106#  define  NEED_DUMMY_RETURN
107#endif
108
109/* Maximum value for memLevel in deflateInit2 */
110#ifndef MAX_MEM_LEVEL
111#  ifdef MAXSEG_64K
112#    define MAX_MEM_LEVEL 8
113#  else
114#    define MAX_MEM_LEVEL 9
115#  endif
116#endif
117
118/* Maximum value for windowBits in deflateInit2 and inflateInit2.
119 * WARNING: reducing MAX_WBITS makes minigzip unable to extract .gz files
120 * created by gzip. (Files created by minigzip can still be extracted by
121 * gzip.)
122 */
123#ifndef MAX_WBITS
124#  define MAX_WBITS   15 /* 32K LZ77 window */
125#endif
126
127/* The memory requirements for deflate are (in bytes):
128            (1 << (windowBits+2)) +  (1 << (memLevel+9))
129 that is: 128K for windowBits=15  +  128K for memLevel = 8  (default values)
130 plus a few kilobytes for small objects. For example, if you want to reduce
131 the default memory requirements from 256K to 128K, compile with
132     make CFLAGS="-O -DMAX_WBITS=14 -DMAX_MEM_LEVEL=7"
133 Of course this will generally degrade compression (there's no free lunch).
134
135   The memory requirements for inflate are (in bytes) 1 << windowBits
136 that is, 32K for windowBits=15 (default value) plus a few kilobytes
137 for small objects.
138*/
139
140                        /* Type declarations */
141
142#ifndef OF /* function prototypes */
143#  ifdef STDC
144#    define OF(args)  args
145#  else
146#    define OF(args)  ()
147#  endif
148#endif
149
150/* The following definitions for FAR are needed only for MSDOS mixed
151 * model programming (small or medium model with some far allocations).
152 * This was tested only with MSC; for other MSDOS compilers you may have
153 * to define NO_MEMCPY in zutil.h.  If you don't need the mixed model,
154 * just define FAR to be empty.
155 */
156#if (defined(M_I86SM) || defined(M_I86MM)) && !defined(__32BIT__)
157   /* MSC small or medium model */
158#  define SMALL_MEDIUM
159#  ifdef _MSC_VER
160#    define FAR _far
161#  else
162#    define FAR far
163#  endif
164#endif
165#if defined(__BORLANDC__) && (defined(__SMALL__) || defined(__MEDIUM__))
166#  ifndef __32BIT__
167#    define SMALL_MEDIUM
168#    define FAR _far
169#  endif
170#endif
171
172/* Compile with -DZLIB_DLL for Windows DLL support */
173#if defined(ZLIB_DLL)
174#  if defined(_WINDOWS) || defined(WINDOWS)
175#    ifdef FAR
176#      undef FAR
177#    endif
178#    include <windows.h>
179#    define ZEXPORT(x)  x WINAPI
180#    ifdef WIN32
181#      define ZEXPORTVA(x)  x WINAPIV
182#    else
183#      define ZEXPORTVA(x)  x FAR _cdecl _export
184#    endif
185#  endif
186#  if defined (__BORLANDC__)
187#    if (__BORLANDC__ >= 0x0500) && defined (WIN32)
188#      include <windows.h>
189#      define ZEXPORT(x) x __declspec(dllexport) WINAPI
190#      define ZEXPORTRVA(x)  x __declspec(dllexport) WINAPIV
191#    else
192#      if defined (_Windows) && defined (__DLL__)
193#        define ZEXPORT(x) x _export
194#        define ZEXPORTVA(x) x _export
195#      endif
196#    endif
197#  endif
198#endif
199
200
201#ifndef ZEXPORT
202#  define ZEXPORT(x)   static x
203#endif
204#ifndef ZEXPORTVA
205#  define ZEXPORTVA(x)   static x
206#endif
207#ifndef ZEXTERN
208#  define ZEXTERN(x) static x
209#endif
210#ifndef ZEXTERNDEF
211#  define ZEXTERNDEF(x)  static x
212#endif
213
214#ifndef FAR
215#   define FAR
216#endif
217
218#if !defined(MACOS) && !defined(TARGET_OS_MAC)
219typedef unsigned char  Byte;  /* 8 bits */
220#endif
221typedef unsigned int   uInt;  /* 16 bits or more */
222typedef unsigned long  uLong; /* 32 bits or more */
223
224#ifdef SMALL_MEDIUM
225   /* Borland C/C++ and some old MSC versions ignore FAR inside typedef */
226#  define Bytef Byte FAR
227#else
228   typedef Byte  FAR Bytef;
229#endif
230typedef char  FAR charf;
231typedef int   FAR intf;
232typedef uInt  FAR uIntf;
233typedef uLong FAR uLongf;
234
235#ifdef STDC
236   typedef void FAR *voidpf;
237   typedef void     *voidp;
238#else
239   typedef Byte FAR *voidpf;
240   typedef Byte     *voidp;
241#endif
242
243#ifdef HAVE_UNISTD_H
244#  include <sys/types.h> /* for off_t */
245#  include <unistd.h>    /* for SEEK_* and off_t */
246#  define z_off_t  off_t
247#endif
248#ifndef SEEK_SET
249#  define SEEK_SET        0       /* Seek from beginning of file.  */
250#  define SEEK_CUR        1       /* Seek from current position.  */
251#  define SEEK_END        2       /* Set file pointer to EOF plus "offset" */
252#endif
253#ifndef z_off_t
254#  define  z_off_t long
255#endif
256
257/* MVS linker does not support external names larger than 8 bytes */
258#if defined(__MVS__)
259#   pragma map(deflateInit_,"DEIN")
260#   pragma map(deflateInit2_,"DEIN2")
261#   pragma map(deflateEnd,"DEEND")
262#   pragma map(inflateInit_,"ININ")
263#   pragma map(inflateInit2_,"ININ2")
264#   pragma map(inflateEnd,"INEND")
265#   pragma map(inflateSync,"INSY")
266#   pragma map(inflateSetDictionary,"INSEDI")
267#   pragma map(inflate_blocks,"INBL")
268#   pragma map(inflate_blocks_new,"INBLNE")
269#   pragma map(inflate_blocks_free,"INBLFR")
270#   pragma map(inflate_blocks_reset,"INBLRE")
271#   pragma map(inflate_codes_free,"INCOFR")
272#   pragma map(inflate_codes,"INCO")
273#   pragma map(inflate_fast,"INFA")
274#   pragma map(inflate_flush,"INFLU")
275#   pragma map(inflate_mask,"INMA")
276#   pragma map(inflate_set_dictionary,"INSEDI2")
277#   pragma map(inflate_copyright,"INCOPY")
278#   pragma map(inflate_trees_bits,"INTRBI")
279#   pragma map(inflate_trees_dynamic,"INTRDY")
280#   pragma map(inflate_trees_fixed,"INTRFI")
281#   pragma map(inflate_trees_free,"INTRFR")
282#endif
283
284#endif /* _ZCONF_H */
285