/* zconf.h -- configuration of the zlib compression library * Copyright (C) 1995-2024 Jean-loup Gailly, Mark Adler * For conditions of distribution and use, see copyright notice in zlib.h */ #ifndef ZCONF_H #define ZCONF_H #include "zlib_name_mangling.h" #if !defined(_WIN32) && defined(__WIN32__) # define _WIN32 #endif /* Clang macro for detecting declspec support * https://clang.llvm.org/docs/LanguageExtensions.html#has-declspec-attribute */ #ifndef __has_declspec_attribute # define __has_declspec_attribute(x) 0 #endif #if defined(ZLIB_CONST) && !defined(z_const) # define z_const const #else # define z_const #endif /* Maximum value for memLevel in deflateInit2 */ #ifndef MAX_MEM_LEVEL # define MAX_MEM_LEVEL 9 #endif /* Maximum value for windowBits in deflateInit2 and inflateInit2. * WARNING: reducing MAX_WBITS makes minigzip unable to extract .gz files * created by gzip. (Files created by minigzip can still be extracted by * gzip.) */ #ifndef MIN_WBITS # define MIN_WBITS 8 /* 256 LZ77 window */ #endif #ifndef MAX_WBITS # define MAX_WBITS 15 /* 32K LZ77 window */ #endif /* The memory requirements for deflate are (in bytes): (1 << (windowBits+2)) + (1 << (memLevel+9)) that is: 128K for windowBits=15 + 128K for memLevel = 8 (default values) plus a few kilobytes for small objects. For example, if you want to reduce the default memory requirements from 256K to 128K, compile with make CFLAGS="-O -DMAX_WBITS=14 -DMAX_MEM_LEVEL=7" Of course this will generally degrade compression (there's no free lunch). The memory requirements for inflate are (in bytes) 1 << windowBits that is, 32K for windowBits=15 (default value) plus about 7 kilobytes for small objects. */ /* Type declarations */ #ifndef OF /* function prototypes */ # define OF(args) args #endif #ifdef ZLIB_INTERNAL # define Z_INTERNAL ZLIB_INTERNAL #endif /* If building or using zlib as a DLL, define ZLIB_DLL. * This is not mandatory, but it offers a little performance increase. */ #if defined(ZLIB_DLL) && (defined(_WIN32) || (__has_declspec_attribute(dllexport) && __has_declspec_attribute(dllimport))) # ifdef Z_INTERNAL # define Z_EXTERN extern __declspec(dllexport) # else # define Z_EXTERN extern __declspec(dllimport) # endif #endif /* If building or using zlib with the WINAPI/WINAPIV calling convention, * define ZLIB_WINAPI. * Caution: the standard ZLIB1.DLL is NOT compiled using ZLIB_WINAPI. */ #if defined(ZLIB_WINAPI) && defined(_WIN32) # ifndef WIN32_LEAN_AND_MEAN # define WIN32_LEAN_AND_MEAN # endif # include /* No need for _export, use ZLIB.DEF instead. */ /* For complete Windows compatibility, use WINAPI, not __stdcall. */ # define Z_EXPORT WINAPI # define Z_EXPORTVA WINAPIV #endif #ifndef Z_EXTERN # define Z_EXTERN extern #endif #ifndef Z_EXPORT # define Z_EXPORT #endif #ifndef Z_EXPORTVA # define Z_EXPORTVA #endif /* Conditional exports */ #define ZNG_CONDEXPORT Z_INTERNAL /* For backwards compatibility */ #ifndef ZEXTERN # define ZEXTERN Z_EXTERN #endif #ifndef ZEXPORT # define ZEXPORT Z_EXPORT #endif #ifndef ZEXPORTVA # define ZEXPORTVA Z_EXPORTVA #endif #ifndef FAR # define FAR #endif /* Legacy zlib typedefs for backwards compatibility. Don't assume stdint.h is defined. */ typedef unsigned char Byte; typedef Byte Bytef; typedef unsigned int uInt; /* 16 bits or more */ typedef unsigned long uLong; /* 32 bits or more */ typedef char charf; typedef int intf; typedef uInt uIntf; typedef uLong uLongf; typedef void const *voidpc; typedef void *voidpf; typedef void *voidp; typedef unsigned int z_crc_t; #ifdef HAVE_UNISTD_H /* may be set to #if 1 by configure/cmake/etc */ # define Z_HAVE_UNISTD_H #endif #ifdef NEED_PTRDIFF_T /* may be set to #if 1 by configure/cmake/etc */ typedef PTRDIFF_TYPE ptrdiff_t; #endif #include /* for off_t */ #include /* for wchar_t and NULL */ /* a little trick to accommodate both "#define _LARGEFILE64_SOURCE" and * "#define _LARGEFILE64_SOURCE 1" as requesting 64-bit operations, (even * though the former does not conform to the LFS document), but considering * both "#undef _LARGEFILE64_SOURCE" and "#define _LARGEFILE64_SOURCE 0" as * equivalently requesting no 64-bit operations */ #if defined(_LARGEFILE64_SOURCE) && -_LARGEFILE64_SOURCE - -1 == 1 # undef _LARGEFILE64_SOURCE #endif #if defined(Z_HAVE_UNISTD_H) || defined(_LARGEFILE64_SOURCE) # include /* for SEEK_*, off_t, and _LFS64_LARGEFILE */ # ifndef z_off_t # define z_off_t off_t # endif #endif #if defined(_LFS64_LARGEFILE) && _LFS64_LARGEFILE-0 # define Z_LFS64 #endif #if defined(_LARGEFILE64_SOURCE) && defined(Z_LFS64) # define Z_LARGE64 #endif #if defined(_FILE_OFFSET_BITS) && _FILE_OFFSET_BITS-0 == 64 && defined(Z_LFS64) # define Z_WANT64 #endif #if !defined(SEEK_SET) # define SEEK_SET 0 /* Seek from beginning of file. */ # define SEEK_CUR 1 /* Seek from current position. */ # define SEEK_END 2 /* Set file pointer to EOF plus "offset" */ #endif #ifndef z_off_t # define z_off_t long #endif #if !defined(_WIN32) && defined(Z_LARGE64) # define z_off64_t off64_t #else # if defined(__MSYS__) # define z_off64_t _off64_t # elif defined(_WIN32) && !defined(__GNUC__) # define z_off64_t __int64 # else # define z_off64_t z_off_t # endif #endif typedef size_t z_size_t; #endif /* ZCONF_H */