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)
219 typedef unsigned char  Byte;  /* 8 bits */
220 #endif
221 typedef unsigned int   uInt;  /* 16 bits or more */
222 typedef 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
230 typedef char  FAR charf;
231 typedef int   FAR intf;
232 typedef uInt  FAR uIntf;
233 typedef 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