cups/versioning.h

   1 /*
   2  * API versioning definitions for CUPS.
   3  *
   4  * Copyright 2007-2016 by Apple Inc.
   5  *
   6  * These coded instructions, statements, and computer programs are the
   7  * property of Apple Inc. and are protected by Federal copyright
   8  * law.  Distribution and use rights are outlined in the file "LICENSE.txt"
   9  * which should have been included with this file.  If this file is
  10  * file is missing or damaged, see the license at "http://www.cups.org/".
  11  *
  12  * This file is subject to the Apple OS-Developed Software exception.
  13  */
  14
  15 #ifndef _CUPS_VERSIONING_H_
  16 #  define _CUPS_VERSIONING_H_
  17
  18 /*
  19  * This header defines several constants - _CUPS_DEPRECATED,
  20  * _CUPS_DEPRECATED_MSG, _CUPS_INTERNAL_MSG, _CUPS_API_1_1, _CUPS_API_1_1_19,
  21  * _CUPS_API_1_1_20, _CUPS_API_1_1_21, _CUPS_API_1_2, _CUPS_API_1_3,
  22  * _CUPS_API_1_4, _CUPS_API_1_5, _CUPS_API_1_6, _CUPS_API_1_7, and
  23  * _CUPS_API_2_0 - which add compiler-specific attributes that flag functions
  24  * that are deprecated, added in particular releases, or internal to CUPS.
  25  *
  26  * On OS X, the _CUPS_API_* constants are defined based on the values of
  27  * the MAC_OS_X_VERSION_MIN_ALLOWED and MAC_OS_X_VERSION_MAX_ALLOWED constants
  28  * provided by the compiler.
  29  */
  30
  31 #  if defined(__APPLE__) && !defined(_CUPS_SOURCE) && !TARGET_OS_IOS
  32 #    include <AvailabilityMacros.h>
  33 #    ifndef AVAILABLE_MAC_OS_X_VERSION_10_3_AND_LATER
  34 #      define AVAILABLE_MAC_OS_X_VERSION_10_3_AND_LATER __attribute__((unavailable))
  35 #    endif /* !AVAILABLE_MAC_OS_X_VERSION_10_3_AND_LATER */
  36 #    ifndef AVAILABLE_MAC_OS_X_VERSION_10_4_AND_LATER
  37 #      define AVAILABLE_MAC_OS_X_VERSION_10_4_AND_LATER __attribute__((unavailable))
  38 #    endif /* !AVAILABLE_MAC_OS_X_VERSION_10_4_AND_LATER */
  39 #    ifndef AVAILABLE_MAC_OS_X_VERSION_10_5_AND_LATER
  40 #      define AVAILABLE_MAC_OS_X_VERSION_10_5_AND_LATER __attribute__((unavailable))
  41 #    endif /* !AVAILABLE_MAC_OS_X_VERSION_10_5_AND_LATER */
  42 #    ifndef AVAILABLE_MAC_OS_X_VERSION_10_6_AND_LATER
  43 #      define AVAILABLE_MAC_OS_X_VERSION_10_6_AND_LATER __attribute__((unavailable))
  44 #    endif /* !AVAILABLE_MAC_OS_X_VERSION_10_6_AND_LATER */
  45 #    ifndef AVAILABLE_MAC_OS_X_VERSION_10_7_AND_LATER
  46 #      define AVAILABLE_MAC_OS_X_VERSION_10_7_AND_LATER __attribute__((unavailable))
  47 #    endif /* !AVAILABLE_MAC_OS_X_VERSION_10_7_AND_LATER */
  48 #    ifndef AVAILABLE_MAC_OS_X_VERSION_10_8_AND_LATER
  49 #      define AVAILABLE_MAC_OS_X_VERSION_10_8_AND_LATER __attribute__((unavailable))
  50 #    endif /* !AVAILABLE_MAC_OS_X_VERSION_10_8_AND_LATER */
  51 #    ifndef AVAILABLE_MAC_OS_X_VERSION_10_9_AND_LATER
  52 #      define AVAILABLE_MAC_OS_X_VERSION_10_9_AND_LATER __attribute__((unavailable))
  53 #    endif /* !AVAILABLE_MAC_OS_X_VERSION_10_9_AND_LATER */
  54 #    ifndef AVAILABLE_MAC_OS_X_VERSION_10_10_AND_LATER
  55 #      define AVAILABLE_MAC_OS_X_VERSION_10_10_AND_LATER __attribute__((unavailable))
  56 #    endif /* !AVAILABLE_MAC_OS_X_VERSION_10_10_AND_LATER */
  57 #    define _CUPS_API_1_1_19 AVAILABLE_MAC_OS_X_VERSION_10_3_AND_LATER
  58 #    define _CUPS_API_1_1_20 AVAILABLE_MAC_OS_X_VERSION_10_4_AND_LATER
  59 #    define _CUPS_API_1_1_21 AVAILABLE_MAC_OS_X_VERSION_10_4_AND_LATER
  60 #    define _CUPS_API_1_2 AVAILABLE_MAC_OS_X_VERSION_10_5_AND_LATER
  61 #    define _CUPS_API_1_3 AVAILABLE_MAC_OS_X_VERSION_10_5_AND_LATER
  62 #    define _CUPS_API_1_4 AVAILABLE_MAC_OS_X_VERSION_10_6_AND_LATER
  63 #    define _CUPS_API_1_5 AVAILABLE_MAC_OS_X_VERSION_10_7_AND_LATER
  64 #    define _CUPS_API_1_6 AVAILABLE_MAC_OS_X_VERSION_10_8_AND_LATER
  65 #    define _CUPS_API_1_7 AVAILABLE_MAC_OS_X_VERSION_10_9_AND_LATER
  66 #    define _CUPS_API_2_0 AVAILABLE_MAC_OS_X_VERSION_10_10_AND_LATER
  67 #    define _CUPS_API_2_2
  68 #  else
  69 #    define _CUPS_API_1_1_19
  70 #    define _CUPS_API_1_1_20
  71 #    define _CUPS_API_1_1_21
  72 #    define _CUPS_API_1_2
  73 #    define _CUPS_API_1_3
  74 #    define _CUPS_API_1_4
  75 #    define _CUPS_API_1_5
  76 #    define _CUPS_API_1_6
  77 #    define _CUPS_API_1_7
  78 #    define _CUPS_API_2_0
  79 #    define _CUPS_API_2_2
  80 #  endif /* __APPLE__ && !_CUPS_SOURCE */
  81
  82 /*
  83  * With GCC and Clang we can mark old APIs as "deprecated" or "unavailable" with
  84  * messages so you get warnings/errors are compile-time...
  85  */
  86
  87 #  ifdef __has_extension                /* Clang */
  88 #    define _CUPS_HAS_DEPRECATED
  89 #    if __has_extension(attribute_deprecated_with_message)
  90 #      define _CUPS_HAS_DEPRECATED_WITH_MESSAGE
  91 #    endif
  92 #    if __has_extension(attribute_unavailable_with_message)
  93 #      define _CUPS_HAS_UNAVAILABLE_WITH_MESSAGE
  94 #    endif
  95 #  elif defined(__GNUC__)               /* GCC and compatible */
  96 #    if __GNUC__ >= 3                   /* GCC 3.0 or higher */
  97 #      define _CUPS_HAS_DEPRECATED
  98 #    endif /* __GNUC__ >= 3 */
  99 #    if __GNUC__ >= 5                   /* GCC 5.x */
 100 #      define _CUPS_HAS_DEPRECATED_WITH_MESSAGE
 101 #    elif __GNUC__ == 4 && __GNUC_MINOR__ >= 5
 102                                         /* GCC 4.5 or higher */
 103 #      define _CUPS_HAS_DEPRECATED_WITH_MESSAGE
 104 #    endif /* __GNUC__ >= 5 */
 105 #  endif /* __has_extension */
 106
 107 #  if !defined(_CUPS_HAS_DEPRECATED) || (defined(_CUPS_SOURCE) && !defined(_CUPS_NO_DEPRECATED))
 108     /*
 109      * Don't mark functions deprecated if the compiler doesn't support it
 110      * or we are building CUPS source that doesn't care.
 111      */
 112 #    define _CUPS_DEPRECATED
 113 #    define _CUPS_DEPRECATED_MSG(m)
 114 #    define _CUPS_DEPRECATED_1_6_MSG(m)
 115 #    define _CUPS_DEPRECATED_1_7_MSG(m)
 116 #    define _CUPS_INTERNAL_MSG(m)
 117 #  elif defined(_CUPS_HAS_UNAVAILABLE_WITH_MESSAGE) && defined(_CUPS_NO_DEPRECATED)
 118     /*
 119      * Compiler supports the unavailable attribute, so use it when the code
 120      * wants to exclude the use of deprecated API.
 121      */
 122 #    define _CUPS_DEPRECATED __attribute__ ((unavailable))
 123 #    define _CUPS_DEPRECATED_MSG(m) __attribute__ ((unavailable(m)))
 124 #    define _CUPS_DEPRECATED_1_6_MSG(m) __attribute__ ((unavailable(m)))
 125 #    define _CUPS_DEPRECATED_1_7_MSG(m) __attribute__ ((unavailable(m)))
 126 #    define _CUPS_INTERNAL_MSG(m) __attribute__ ((unavailable(m)))
 127 #  else
 128     /*
 129      * Compiler supports the deprecated attribute, so use it.
 130      */
 131 #    define _CUPS_DEPRECATED __attribute__ ((deprecated))
 132 #    ifdef _CUPS_HAS_DEPRECATED_WITH_MESSAGE
 133 #      define _CUPS_DEPRECATED_MSG(m) __attribute__ ((deprecated(m)))
 134 #    else
 135 #      define _CUPS_DEPRECATED_MSG(m) __attribute__ ((deprecated))
 136 #    endif /* _CUPS_HAS_DEPRECATED_WITH_MESSAGE */
 137 #    if defined(MAC_OS_X_VERSION_10_8) && MAC_OS_X_VERSION_MIN_REQUIRED >= MAC_OS_X_VERSION_10_8
 138 #      define _CUPS_DEPRECATED_1_6_MSG(m) _CUPS_DEPRECATED_MSG(m)
 139 #    else
 140 #      define _CUPS_DEPRECATED_1_6_MSG(m)
 141 #    endif /* MAC_OS_X_VERSION_MIN_REQUIRED > MAC_OS_X_VERSION_10_8 */
 142 #    if defined(MAC_OS_X_VERSION_10_9) && MAC_OS_X_VERSION_MIN_REQUIRED >= MAC_OS_X_VERSION_10_9
 143 #      define _CUPS_DEPRECATED_1_7_MSG(m) _CUPS_DEPRECATED_MSG(m)
 144 #    else
 145 #      define _CUPS_DEPRECATED_1_7_MSG(m)
 146 #    endif /* MAC_OS_X_VERSION_MIN_REQUIRED > MAC_OS_X_VERSION_10_9 */
 147 #    ifdef _CUPS_SOURCE
 148 #      define _CUPS_INTERNAL_MSG(m)
 149 #    elif defined(_CUPS_HAS_UNAVAILABLE_WITH_MESSAGE)
 150 #      define _CUPS_INTERNAL_MSG(m) __attribute__ ((unavailable(m)))
 151 #    elif defined(_CUPS_HAS_DEPRECATED_WITH_MESSAGE)
 152 #      define _CUPS_INTERNAL_MSG(m) __attribute__ ((deprecated(m)))
 153 #    else
 154 #      define _CUPS_INTERNAL_MSG(m) __attribute__ ((deprecated))
 155 #    endif /* _CUPS_SOURCE */
 156 #  endif /* !_CUPS_HAS_DEPRECATED || (_CUPS_SOURCE && !_CUPS_NO_DEPRECATED) */
 157
 158 #  ifndef __GNUC__
 159 #    define __attribute__(x)
 160 #  endif /* !__GNUC__ */
 161
 162 #endif /* !_CUPS_VERSIONING_H_ */