release/src-rt-6.x.4708/tools/misc/xz/src/common/tuklib_common.h

   1 ///////////////////////////////////////////////////////////////////////////////
   2 //
   3 /// \file       tuklib_common.h
   4 /// \brief      Common definitions for tuklib modules
   5 //
   6 //  Author:     Lasse Collin
   7 //
   8 //  This file has been put into the public domain.
   9 //  You can do whatever you want with this file.
  10 //
  11 ///////////////////////////////////////////////////////////////////////////////
  12
  13 #ifndef TUKLIB_COMMON_H
  14 #define TUKLIB_COMMON_H
  15
  16 // The config file may be replaced by a package-specific file.
  17 // It should include at least stddef.h, inttypes.h, and limits.h.
  18 #include "tuklib_config.h"
  19
  20 // TUKLIB_SYMBOL_PREFIX is prefixed to all symbols exported by
  21 // the tuklib modules. If you use a tuklib module in a library,
  22 // you should use TUKLIB_SYMBOL_PREFIX to make sure that there
  23 // are no symbol conflicts in case someone links your library
  24 // into application that also uses the same tuklib module.
  25 #ifndef TUKLIB_SYMBOL_PREFIX
  26 #       define TUKLIB_SYMBOL_PREFIX
  27 #endif
  28
  29 #define TUKLIB_CAT_X(a, b) a ## b
  30 #define TUKLIB_CAT(a, b) TUKLIB_CAT_X(a, b)
  31
  32 #ifndef TUKLIB_SYMBOL
  33 #       define TUKLIB_SYMBOL(sym) TUKLIB_CAT(TUKLIB_SYMBOL_PREFIX, sym)
  34 #endif
  35
  36 #ifndef TUKLIB_DECLS_BEGIN
  37 #       ifdef __cplusplus
  38 #               define TUKLIB_DECLS_BEGIN extern "C" {
  39 #       else
  40 #               define TUKLIB_DECLS_BEGIN
  41 #       endif
  42 #endif
  43
  44 #ifndef TUKLIB_DECLS_END
  45 #       ifdef __cplusplus
  46 #               define TUKLIB_DECLS_END }
  47 #       else
  48 #               define TUKLIB_DECLS_END
  49 #       endif
  50 #endif
  51
  52 #if defined(__GNUC__) && defined(__GNUC_MINOR__)
  53 #       define TUKLIB_GNUC_REQ(major, minor) \
  54                 ((__GNUC__ == (major) && __GNUC_MINOR__ >= (minor)) \
  55                         || __GNUC__ > (major))
  56 #else
  57 #       define TUKLIB_GNUC_REQ(major, minor) 0
  58 #endif
  59
  60 #if TUKLIB_GNUC_REQ(2, 5)
  61 #       define tuklib_attr_noreturn __attribute__((__noreturn__))
  62 #else
  63 #       define tuklib_attr_noreturn
  64 #endif
  65
  66 #if (defined(_WIN32) && !defined(__CYGWIN__)) \
  67                 || defined(__OS2__) || defined(__MSDOS__)
  68 #       define TUKLIB_DOSLIKE 1
  69 #endif
  70
  71 #endif