1 /* zconf.h -- configuration of the zlib compression library 2 * Copyright (C) 1995-1998 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 #if defined(__GNUC__) || defined(__386__) || defined(i386) 12 # ifndef __32BIT__ 13 # define __32BIT__ 14 # endif 15 #endif 16 17 #if defined(__STDC__) || defined(__cplusplus) 18 # ifndef STDC 19 # define STDC 20 # endif 21 #endif 22 23 /* The memory requirements for deflate are (in bytes): 24 (1 << (windowBits+2)) + (1 << (memLevel+9)) 25 that is: 128K for windowBits=15 + 128K for memLevel = 8 (default values) 26 plus a few kilobytes for small objects. For example, if you want to reduce 27 the default memory requirements from 256K to 128K, compile with 28 make CFLAGS="-O -DMAX_WBITS=14 -DMAX_MEM_LEVEL=7" 29 Of course this will generally degrade compression (there's no free lunch). 30 31 The memory requirements for inflate are (in bytes) 1 << windowBits 32 that is, 32K for windowBits=15 (default value) plus a few kilobytes 33 for small objects. 34 */ 35 36 /* Maximum value for memLevel in deflateInit2 */ 37 #ifndef MAX_MEM_LEVEL 38 # define MAX_MEM_LEVEL 9 39 #endif 40 41 /* Maximum value for windowBits in deflateInit2 and inflateInit2. 42 * WARNING: reducing MAX_WBITS makes minigzip unable to extract .gz files 43 * created by gzip. (Files created by minigzip can still be extracted by 44 * gzip.) 45 */ 46 #ifndef MAX_WBITS 47 # define MAX_WBITS 15 /* 32K LZ77 window */ 48 #endif 49 50 /* Type declarations */ 51 52 #ifndef OF /* function prototypes */ 53 # ifdef STDC 54 # define OF(args) args 55 # else 56 # define OF(args) () 57 # endif 58 #endif 59 60 #ifndef ZEXPORT 61 # define ZEXPORT 62 #endif 63 #ifndef ZEXPORTVA 64 # define ZEXPORTVA 65 #endif 66 #ifndef ZEXTERN 67 # define ZEXTERN extern 68 #endif 69 #ifndef FAR 70 # define FAR 71 #endif 72 73 typedef unsigned char Byte; /* 8 bits */ 74 typedef unsigned int uInt; /* 16 bits or more */ 75 typedef unsigned long uLong; /* 32 bits or more */ 76 77 typedef Byte FAR Bytef; 78 typedef char FAR charf; 79 typedef int FAR intf; 80 typedef uInt FAR uIntf; 81 typedef uLong FAR uLongf; 82 83 typedef void FAR *voidpf; 84 typedef void *voidp; 85 86 #include <linux/types.h> /* for off_t */ 87 #include <linux/unistd.h> /* for SEEK_* and off_t */ 88 #define z_off_t off_t 89 90 #endif /* _ZCONF_H */ 91