+
+/*
+ * Define _CUPS_INTERNAL, _CUPS_PRIVATE, and _CUPS_PUBLIC visibilty macros for
+ * internal/private/public functions...
+ */
+
+# ifdef _CUPS_HAS_VISIBILITY
+# define _CUPS_INTERNAL __attribute__ ((visibility("hidden")))
+# define _CUPS_PRIVATE __attribute__ ((visibility("default")))
+# define _CUPS_PUBLIC __attribute__ ((visibility("default")))
+# elif defined(_WIN32) && defined(LIBCUPS2_EXPORTS) && 0
+# define _CUPS_INTERNAL
+# define _CUPS_PRIVATE __declspec(dllexport)
+# define _CUPS_PUBLIC __declspec(dllexport)
+# else
+# define _CUPS_INTERNAL
+# define _CUPS_PRIVATE
+# define _CUPS_PUBLIC
+# endif /* _CUPS_HAS_VISIBILITY */
+
+
+/*
+ * Define _CUPS_API_major_minor[_patch] availability macros for CUPS.
+ *
+ * Note: Using any of the _CUPS_API macros automatically adds _CUPS_PUBLIC.
+ */
+
+# if defined(__APPLE__) && !defined(_CUPS_SOURCE) && TARGET_OS_OSX
+/*
+ * On Apple operating systems, the _CUPS_API_* constants are defined using the
+ * API_ macros in <os/availability.h>.
+ *
+ * On iOS, we don't actually have libcups available directly, but the supplied
+ * libcups_static target in the Xcode project supports building on iOS 11.0 and
+ * later.
+ */
+# define _CUPS_API_1_1_19 API_AVAILABLE(macos(10.3), ios(11.0)) _CUPS_PUBLIC
+# define _CUPS_API_1_1_20 API_AVAILABLE(macos(10.4), ios(11.0)) _CUPS_PUBLIC
+# define _CUPS_API_1_1_21 API_AVAILABLE(macos(10.4), ios(11.0)) _CUPS_PUBLIC
+# define _CUPS_API_1_2 API_AVAILABLE(macos(10.5), ios(11.0)) _CUPS_PUBLIC
+# define _CUPS_API_1_3 API_AVAILABLE(macos(10.5), ios(11.0)) _CUPS_PUBLIC
+# define _CUPS_API_1_4 API_AVAILABLE(macos(10.6), ios(11.0)) _CUPS_PUBLIC
+# define _CUPS_API_1_5 API_AVAILABLE(macos(10.7), ios(11.0)) _CUPS_PUBLIC
+# define _CUPS_API_1_6 API_AVAILABLE(macos(10.8), ios(11.0)) _CUPS_PUBLIC
+# define _CUPS_API_1_7 API_AVAILABLE(macos(10.9), ios(11.0)) _CUPS_PUBLIC
+# define _CUPS_API_2_0 API_AVAILABLE(macos(10.10), ios(11.0)) _CUPS_PUBLIC
+# define _CUPS_API_2_2 API_AVAILABLE(macos(10.12), ios(11.0)) _CUPS_PUBLIC
+# define _CUPS_API_2_2_4 API_AVAILABLE(macos(10.13), ios(12.0)) _CUPS_PUBLIC
+# define _CUPS_API_2_2_7 API_AVAILABLE(macos(10.14), ios(13.0)) _CUPS_PUBLIC
+# define _CUPS_API_2_3 API_AVAILABLE(macos(10.14), ios(13.0)) _CUPS_PUBLIC
+# else
+# define _CUPS_API_1_1_19 _CUPS_PUBLIC
+# define _CUPS_API_1_1_20 _CUPS_PUBLIC
+# define _CUPS_API_1_1_21 _CUPS_PUBLIC
+# define _CUPS_API_1_2 _CUPS_PUBLIC
+# define _CUPS_API_1_3 _CUPS_PUBLIC
+# define _CUPS_API_1_4 _CUPS_PUBLIC
+# define _CUPS_API_1_5 _CUPS_PUBLIC
+# define _CUPS_API_1_6 _CUPS_PUBLIC
+# define _CUPS_API_1_7 _CUPS_PUBLIC
+# define _CUPS_API_2_0 _CUPS_PUBLIC
+# define _CUPS_API_2_2 _CUPS_PUBLIC
+# define _CUPS_API_2_2_4 _CUPS_PUBLIC
+# define _CUPS_API_2_2_7 _CUPS_PUBLIC
+# define _CUPS_API_2_3 _CUPS_PUBLIC
+# endif /* __APPLE__ && !_CUPS_SOURCE */
+
+
+/*
+ * Define _CUPS_DEPRECATED and _CUPS_INTERNAL macros to mark old APIs as
+ * "deprecated" or "unavailable" with messages so you get warnings/errors are
+ * compile-time...
+ *
+ * Note: Using any of the _CUPS_DEPRECATED macros automatically adds
+ * _CUPS_PUBLIC.
+ */
+