cups/versioning.h

   1 /*
   2  * API versioning definitions for CUPS.
   3  *
   4  * Copyright 2007-2017 by Apple Inc.
   5  *
   6  * Licensed under Apache License v2.0.  See the file "LICENSE" for more information.
   7  */
   8
   9 #ifndef _CUPS_VERSIONING_H_
  10 #  define _CUPS_VERSIONING_H_
  11
  12 /*
  13  * This header defines several constants - _CUPS_DEPRECATED,
  14  * _CUPS_DEPRECATED_MSG, _CUPS_INTERNAL_MSG, _CUPS_API_major_minor, and
  15  * _CUPS_API_major_minor_patch - which add compiler-specific attributes that
  16  * flag functions that are deprecated, added in particular releases, or internal
  17  * to CUPS.
  18  *
  19  * On macOS, the _CUPS_API_* constants are defined based on the values of
  20  * the MAC_OS_X_VERSION_MIN_ALLOWED and MAC_OS_X_VERSION_MAX_ALLOWED constants
  21  * provided by the compiler.
  22  */
  23
  24 #  if defined(__APPLE__) && !defined(_CUPS_SOURCE) && !TARGET_OS_IOS
  25 #    include <AvailabilityMacros.h>
  26 #    ifndef AVAILABLE_MAC_OS_X_VERSION_10_3_AND_LATER
  27 #      define AVAILABLE_MAC_OS_X_VERSION_10_3_AND_LATER __attribute__((unavailable))
  28 #    endif /* !AVAILABLE_MAC_OS_X_VERSION_10_3_AND_LATER */
  29 #    ifndef AVAILABLE_MAC_OS_X_VERSION_10_4_AND_LATER
  30 #      define AVAILABLE_MAC_OS_X_VERSION_10_4_AND_LATER __attribute__((unavailable))
  31 #    endif /* !AVAILABLE_MAC_OS_X_VERSION_10_4_AND_LATER */
  32 #    ifndef AVAILABLE_MAC_OS_X_VERSION_10_5_AND_LATER
  33 #      define AVAILABLE_MAC_OS_X_VERSION_10_5_AND_LATER __attribute__((unavailable))
  34 #    endif /* !AVAILABLE_MAC_OS_X_VERSION_10_5_AND_LATER */
  35 #    ifndef AVAILABLE_MAC_OS_X_VERSION_10_6_AND_LATER
  36 #      define AVAILABLE_MAC_OS_X_VERSION_10_6_AND_LATER __attribute__((unavailable))
  37 #    endif /* !AVAILABLE_MAC_OS_X_VERSION_10_6_AND_LATER */
  38 #    ifndef AVAILABLE_MAC_OS_X_VERSION_10_7_AND_LATER
  39 #      define AVAILABLE_MAC_OS_X_VERSION_10_7_AND_LATER __attribute__((unavailable))
  40 #    endif /* !AVAILABLE_MAC_OS_X_VERSION_10_7_AND_LATER */
  41 #    ifndef AVAILABLE_MAC_OS_X_VERSION_10_8_AND_LATER
  42 #      define AVAILABLE_MAC_OS_X_VERSION_10_8_AND_LATER __attribute__((unavailable))
  43 #    endif /* !AVAILABLE_MAC_OS_X_VERSION_10_8_AND_LATER */
  44 #    ifndef AVAILABLE_MAC_OS_X_VERSION_10_9_AND_LATER
  45 #      define AVAILABLE_MAC_OS_X_VERSION_10_9_AND_LATER __attribute__((unavailable))
  46 #    endif /* !AVAILABLE_MAC_OS_X_VERSION_10_9_AND_LATER */
  47 #    ifndef AVAILABLE_MAC_OS_X_VERSION_10_10_AND_LATER
  48 #      define AVAILABLE_MAC_OS_X_VERSION_10_10_AND_LATER __attribute__((unavailable))
  49 #    endif /* !AVAILABLE_MAC_OS_X_VERSION_10_10_AND_LATER */
  50 #    ifndef AVAILABLE_MAC_OS_X_VERSION_10_12_AND_LATER
  51 #      define AVAILABLE_MAC_OS_X_VERSION_10_12_AND_LATER __attribute__((unavailable))
  52 #    endif /* !AVAILABLE_MAC_OS_X_VERSION_10_12_AND_LATER */
  53 #    ifndef AVAILABLE_MAC_OS_X_VERSION_10_13_AND_LATER
  54 #      define AVAILABLE_MAC_OS_X_VERSION_10_13_AND_LATER __attribute__((unavailable))
  55 #    endif /* !AVAILABLE_MAC_OS_X_VERSION_10_13_AND_LATER */
  56 #    define _CUPS_API_1_1_19 AVAILABLE_MAC_OS_X_VERSION_10_3_AND_LATER
  57 #    define _CUPS_API_1_1_20 AVAILABLE_MAC_OS_X_VERSION_10_4_AND_LATER
  58 #    define _CUPS_API_1_1_21 AVAILABLE_MAC_OS_X_VERSION_10_4_AND_LATER
  59 #    define _CUPS_API_1_2 AVAILABLE_MAC_OS_X_VERSION_10_5_AND_LATER
  60 #    define _CUPS_API_1_3 AVAILABLE_MAC_OS_X_VERSION_10_5_AND_LATER
  61 #    define _CUPS_API_1_4 AVAILABLE_MAC_OS_X_VERSION_10_6_AND_LATER
  62 #    define _CUPS_API_1_5 AVAILABLE_MAC_OS_X_VERSION_10_7_AND_LATER
  63 #    define _CUPS_API_1_6 AVAILABLE_MAC_OS_X_VERSION_10_8_AND_LATER
  64 #    define _CUPS_API_1_7 AVAILABLE_MAC_OS_X_VERSION_10_9_AND_LATER
  65 #    define _CUPS_API_2_0 AVAILABLE_MAC_OS_X_VERSION_10_10_AND_LATER
  66 #    define _CUPS_API_2_2 AVAILABLE_MAC_OS_X_VERSION_10_12_AND_LATER
  67 #    define _CUPS_API_2_2_4 AVAILABLE_MAC_OS_X_VERSION_10_13_AND_LATER
  68 #    define _CUPS_API_2_3
  69 #  else
  70 #    define _CUPS_API_1_1_19
  71 #    define _CUPS_API_1_1_20
  72 #    define _CUPS_API_1_1_21
  73 #    define _CUPS_API_1_2
  74 #    define _CUPS_API_1_3
  75 #    define _CUPS_API_1_4
  76 #    define _CUPS_API_1_5
  77 #    define _CUPS_API_1_6
  78 #    define _CUPS_API_1_7
  79 #    define _CUPS_API_2_0
  80 #    define _CUPS_API_2_2
  81 #    define _CUPS_API_2_2_4
  82 #    define _CUPS_API_2_3
  83 #  endif /* __APPLE__ && !_CUPS_SOURCE */
  84
  85 /*
  86  * With GCC and Clang we can mark old APIs as "deprecated" or "unavailable" with
  87  * messages so you get warnings/errors are compile-time...
  88  */
  89
  90 #  ifdef __has_extension                /* Clang */
  91 #    define _CUPS_HAS_DEPRECATED
  92 #    if __has_extension(attribute_deprecated_with_message)
  93 #      define _CUPS_HAS_DEPRECATED_WITH_MESSAGE
  94 #    endif
  95 #    if __has_extension(attribute_unavailable_with_message)
  96 #      define _CUPS_HAS_UNAVAILABLE_WITH_MESSAGE
  97 #    endif
  98 #  elif defined(__GNUC__)               /* GCC and compatible */
  99 #    if __GNUC__ >= 3                   /* GCC 3.0 or higher */
 100 #      define _CUPS_HAS_DEPRECATED
 101 #    endif /* __GNUC__ >= 3 */
 102 #    if __GNUC__ >= 5                   /* GCC 5.x */
 103 #      define _CUPS_HAS_DEPRECATED_WITH_MESSAGE
 104 #    elif __GNUC__ == 4 && __GNUC_MINOR__ >= 5
 105                                         /* GCC 4.5 or higher */
 106 #      define _CUPS_HAS_DEPRECATED_WITH_MESSAGE
 107 #    endif /* __GNUC__ >= 5 */
 108 #  endif /* __has_extension */
 109
 110 #  if !defined(_CUPS_HAS_DEPRECATED) || (defined(_CUPS_SOURCE) && !defined(_CUPS_NO_DEPRECATED))
 111     /*
 112      * Don't mark functions deprecated if the compiler doesn't support it
 113      * or we are building CUPS source that doesn't care.
 114      */
 115 #    define _CUPS_DEPRECATED
 116 #    define _CUPS_DEPRECATED_MSG(m)
 117 #    define _CUPS_DEPRECATED_1_6_MSG(m)
 118 #    define _CUPS_DEPRECATED_1_7_MSG(m)
 119 #    define _CUPS_INTERNAL_MSG(m)
 120 #  elif defined(_CUPS_HAS_UNAVAILABLE_WITH_MESSAGE) && defined(_CUPS_NO_DEPRECATED)
 121     /*
 122      * Compiler supports the unavailable attribute, so use it when the code
 123      * wants to exclude the use of deprecated API.
 124      */
 125 #    define _CUPS_DEPRECATED __attribute__ ((unavailable))
 126 #    define _CUPS_DEPRECATED_MSG(m) __attribute__ ((unavailable(m)))
 127 #    define _CUPS_DEPRECATED_1_6_MSG(m) __attribute__ ((unavailable(m)))
 128 #    define _CUPS_DEPRECATED_1_7_MSG(m) __attribute__ ((unavailable(m)))
 129 #    define _CUPS_INTERNAL_MSG(m) __attribute__ ((unavailable(m)))
 130 #  else
 131     /*
 132      * Compiler supports the deprecated attribute, so use it.
 133      */
 134 #    define _CUPS_DEPRECATED __attribute__ ((deprecated))
 135 #    ifdef _CUPS_HAS_DEPRECATED_WITH_MESSAGE
 136 #      define _CUPS_DEPRECATED_MSG(m) __attribute__ ((deprecated(m)))
 137 #    else
 138 #      define _CUPS_DEPRECATED_MSG(m) __attribute__ ((deprecated))
 139 #    endif /* _CUPS_HAS_DEPRECATED_WITH_MESSAGE */
 140 #    if defined(MAC_OS_X_VERSION_10_8) && MAC_OS_X_VERSION_MIN_REQUIRED >= MAC_OS_X_VERSION_10_8
 141 #      define _CUPS_DEPRECATED_1_6_MSG(m) _CUPS_DEPRECATED_MSG(m)
 142 #    else
 143 #      define _CUPS_DEPRECATED_1_6_MSG(m)
 144 #    endif /* MAC_OS_X_VERSION_MIN_REQUIRED > MAC_OS_X_VERSION_10_8 */
 145 #    if defined(MAC_OS_X_VERSION_10_9) && MAC_OS_X_VERSION_MIN_REQUIRED >= MAC_OS_X_VERSION_10_9
 146 #      define _CUPS_DEPRECATED_1_7_MSG(m) _CUPS_DEPRECATED_MSG(m)
 147 #    else
 148 #      define _CUPS_DEPRECATED_1_7_MSG(m)
 149 #    endif /* MAC_OS_X_VERSION_MIN_REQUIRED > MAC_OS_X_VERSION_10_9 */
 150 #    ifdef _CUPS_SOURCE
 151 #      define _CUPS_INTERNAL_MSG(m)
 152 #    elif defined(_CUPS_HAS_UNAVAILABLE_WITH_MESSAGE)
 153 #      define _CUPS_INTERNAL_MSG(m) __attribute__ ((unavailable(m)))
 154 #    elif defined(_CUPS_HAS_DEPRECATED_WITH_MESSAGE)
 155 #      define _CUPS_INTERNAL_MSG(m) __attribute__ ((deprecated(m)))
 156 #    else
 157 #      define _CUPS_INTERNAL_MSG(m) __attribute__ ((deprecated))
 158 #    endif /* _CUPS_SOURCE */
 159 #  endif /* !_CUPS_HAS_DEPRECATED || (_CUPS_SOURCE && !_CUPS_NO_DEPRECATED) */
 160
 161 #  ifndef __GNUC__
 162 #    define __attribute__(x)
 163 #  endif /* !__GNUC__ */
 164
 165 #endif /* !_CUPS_VERSIONING_H_ */