/usr/include/GNUstep/GNUstepBase/GSVersionMacros.h is in libgnustep-base-dev 1.25.1-2ubuntu3.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
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Copyright (C) 2006-2014 Free Software Foundation, Inc.
Written by: Richard Frith-Macdonald <rfm@gnu.org>
Date: Oct, October 2006
This file is part of GNUstep.
This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2 of the License, or (at your option) any later version.
This library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Library General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with this library; if not, write to the Free
Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
Boston, MA 02110-1301, USA.
*/
#ifndef __GNUSTEP_GSVERSIONMACROS_H_INCLUDED_
#define __GNUSTEP_GSVERSIONMACROS_H_INCLUDED_
/* By default we defined NO_GNUSTEP to 0 so that we will include extensions.
*/
#if !defined(NO_GNUSTEP)
# define NO_GNUSTEP 0
#endif
/* Check consistency of definitions for system compatibility.
*/
#if defined(STRICT_OPENSTEP)
# define GS_OPENSTEP_V 10000
# undef NO_GNUSTEP
# define NO_GNUSTEP 1
#elif defined(STRICT_MACOS_X)
# define GS_OPENSTEP_V 100600
# undef NO_GNUSTEP
# define NO_GNUSTEP 1
#endif
/* Define the GS_OSX_ADJUST() macro to adjust OSX style version macros
* to GNUstep style version macros.
*/
#define GS_OSX_ADJUST(V) ((V) >= 10000 ? (V) : ((V)/100*10000 + (V)%100*10))
/* Define OSX compatibility version macros if necessary.
*/
#if !defined(MAC_OS_X_VERSION_10_0)
#define MAC_OS_X_VERSION_10_0 1000
#define MAC_OS_X_VERSION_10_1 1010
#define MAC_OS_X_VERSION_10_2 1020
#define MAC_OS_X_VERSION_10_3 1030
#define MAC_OS_X_VERSION_10_4 1040
#define MAC_OS_X_VERSION_10_5 1050
#define MAC_OS_X_VERSION_10_6 1060
#define MAC_OS_X_VERSION_10_7 1070
#define MAC_OS_X_VERSION_10_8 1080
#define MAC_OS_X_VERSION_10_9 1090
#define MAC_OS_X_VERSION_10_10 1100
#define MAC_OS_X_VERSION_10_11 1110
#endif /* MAC_OS_X_VERSION_10_0 */
/* Allow MAC_OS_X_VERSION_MAX_ALLOWED to be used in place of GS_OPENSTEP_V
* if GS_OPENSTEP_V is not defined.
*/
#ifndef GS_OPENSTEP_V
#ifdef MAC_OS_X_VERSION_MAX_ALLOWED
#define GS_OPENSTEP_V GS_OSX_ADJUST(MAC_OS_X_VERSION_MAX_ALLOWED)
#endif /* MAC_OS_X_VERSION_MAX_ALLOWED */
#endif /* GS_OPENSTEP_V */
/*
* NB. The version values below must be integers ... by convention these are
* made up of two digits each for major, minor and subminor version numbers
* (ie each is in the range 00 to 99 though a leading zero in the major
* number is not permitted).
* So for a MacOS-X 10.3.9 release the version number would be 100309
*
* You may define GS_GNUSTEP_V or GS_OPENSTEP_V to ensure that your
* program only 'sees' the specified varsion of the API.
*/
/**
* <p>Macro to check a defined GNUstep version number (GS_GNUSTEP_V) against
* the supplied arguments. Returns true if no GNUstep version is specified,
* or if ADD <= version < REM, where ADD is the version
* number at which a feature guarded by the macro was introduced and
* REM is the version number at which it was removed.
* </p>
* <p>The version number arguments are six digit integers where the first
* two digits are the major version number, the second two are the minor
* version number and the last two are the subminor number (all left padded
* with a zero where necessary). However, for convenience you can also
* use the predefined constants ...
* <ref type="macro" id="GS_API_NONE">GS_API_NONE</ref>,
* <ref type="macro" id="GS_API_LATEST">GS_API_LATEST</ref>,
* </p>
* <p>Also see <ref type="macro" id="OS_API_VERSION">OS_API_VERSION</ref>
* </p>
* <p>NB. If you are changing the API (eg adding a new feature) you need
* to control the visibility io the new header file code using<br />
* <code>#if GS_API_VERSION(ADD,GS_API_LATEST)</code><br />
* where <code>ADD</code> is the version number of the next minor
* release after the most recent one.<br />
* As a general principle you should <em>not</em> change the API with
* changing subminor version numbers ... as that tends to confuse
* people (though Apple has sometimes done it).
* </p>
*/
#define GS_API_VERSION(ADD,REM) \
(!defined(GS_GNUSTEP_V) || (GS_GNUSTEP_V >= ADD && GS_GNUSTEP_V < REM))
/**
* <p>Macro to check a defined OpenStep/OPENSTEP/MacOS-X version against the
* supplied arguments. Returns true if no version is specified, or if
* ADD <= version < REM, where ADD is the version
* number at which a feature guarded by the macro was introduced and
* REM is the version number at which it was removed.
* </p>
* <p>The version number arguments are six digit integers where the first
* two digits are the major version number, the second two are the minor
* version number and the last two are the subminor number (all left padded
* with a zero where necessary). However, for convenience you can also
* use any of several predefined constants ...
* <ref type="macro" id="GS_API_NONE">GS_API_NONE</ref>,
* <ref type="macro" id="GS_API_LATEST">GS_API_LATEST</ref>,
* <ref type="macro" id="GS_API_OSSPEC">GS_API_OSSPEC</ref>,
* <ref type="macro" id="GS_API_OPENSTEP">GS_API_OPENSTEP</ref>,
* <ref type="macro" id="GS_API_MACOSX">GS_API_MACOSX</ref>
* </p>
* <p>Also see <ref type="macro" id="GS_API_VERSION">GS_API_VERSION</ref>
* </p>
* <p>For OSX compatibility, this macro also supports the use of Apple's
* symbolic constants for version numbering. Their contants are currently
* four digit values (two digits for the major version, one for the minor,
* and one for the subminor).
* </p>
* <p>The Apple compatibility version macros are currently:
* <ref type="macro" id="MAC_OS_X_VERSION_10_0">MAC_OS_X_VERSION_10_0</ref>,
* <ref type="macro" id="MAC_OS_X_VERSION_10_1">MAC_OS_X_VERSION_10_1</ref>,
* <ref type="macro" id="MAC_OS_X_VERSION_10_2">MAC_OS_X_VERSION_10_2</ref>,
* <ref type="macro" id="MAC_OS_X_VERSION_10_3">MAC_OS_X_VERSION_10_3</ref>,
* <ref type="macro" id="MAC_OS_X_VERSION_10_4">MAC_OS_X_VERSION_10_4</ref>,
* <ref type="macro" id="MAC_OS_X_VERSION_10_5">MAC_OS_X_VERSION_10_5</ref>,
* <ref type="macro" id="MAC_OS_X_VERSION_10_6">MAC_OS_X_VERSION_10_6</ref>,
* <ref type="macro" id="MAC_OS_X_VERSION_10_7">MAC_OS_X_VERSION_10_7</ref>,
* <ref type="macro" id="MAC_OS_X_VERSION_10_8">MAC_OS_X_VERSION_10_8</ref>
* <ref type="macro" id="MAC_OS_X_VERSION_10_9">MAC_OS_X_VERSION_10_9</ref>
* </p>
*/
#define OS_API_VERSION(ADD,REM) \
(!defined(GS_OPENSTEP_V) \
|| (GS_OPENSTEP_V>=GS_OSX_ADJUST(ADD) && GS_OPENSTEP_V<GS_OSX_ADJUST(REM)))
/**
* A constant which is the lowest possible version number (0) so that
* when used as the removal version (second argument of the GS_API_VERSION
* or OS_API_VERSION macro) represents a feature which is not present in
* any version.<br />
* eg.<br />
* #if <ref type="macro" id="OS_API_VERSION">OS_API_VERSION</ref>
* (GS_API_NONE, GS_API_NONE)<br />
* denotes code not present in OpenStep/OPENSTEP/MacOS-X
*/
#define GS_API_NONE 0
/**
* A constant to represent a feature which is still present in the latest
* version. This is the highest possible version number.<br />
* eg.<br />
* #if <ref type="macro" id="OS_API_VERSION">OS_API_VERSION</ref>
* (GS_API_MACOSX, GS_API_LATEST)<br />
* denotes code present from the initial MacOS-X version onwards.
*/
#define GS_API_LATEST 999999
/**
* The version number of the initial OpenStep specification.<br />
* eg.<br />
* #if <ref type="macro" id="OS_API_VERSION">OS_API_VERSION</ref>
* (GS_API_OSSPEC, GS_API_LATEST)<br />
* denotes code present from the OpenStep specification onwards.
*/
#define GS_API_OSSPEC 10000
/**
* The version number of the first OPENSTEP implementation.<br />
* eg.<br />
* #if <ref type="macro" id="OS_API_VERSION">OS_API_VERSION</ref>
* (GS_API_OPENSTEP, GS_API_LATEST)<br />
* denotes code present from the initial OPENSTEP version onwards.
*/
#define GS_API_OPENSTEP 40000
/**
* The version number of the first MacOS-X implementation.<br />
* eg.<br />
* #if <ref type="macro" id="OS_API_VERSION">OS_API_VERSION</ref>
* (GS_API_MACOSX, GS_API_LATEST)<br />
* denotes code present from the initial MacOS-X version onwards.
*/
#define GS_API_MACOSX 100000
/* Allow OSX code comparing MAC_OS_X_VERSION_MAX_ALLOWED with a specific
* version to see if that version is allowed, to always have it allowed
* on GNUstep.
*/
#ifndef MAC_OS_X_VERSION_MAX_ALLOWED
#define MAC_OS_X_VERSION_MAX_ALLOWED GS_API_LATEST
#endif /* MAC_OS_X_VERSION_MAX_ALLOWED */
#if defined(GNUSTEP_BASE_INTERNAL)
#include "GNUstepBase/GSConfig.h"
#else
#include <GNUstepBase/GSConfig.h>
#endif
#if defined(__GNUC__) && defined(__GNUC_MINOR__) && !defined(__clang__)
# define GS_GCC_MINREQ(maj, min) \
((__GNUC__ << 16) + __GNUC_MINOR__ >= ((maj) << 16) + (min))
#else
# define GS_GCC_MINREQ(maj, min) 0
#endif
#if defined(__clang__)
# define GS_CLANG_MINREQ(maj, min) \
((__clang_major__ << 16) + __clang_minor__ >= ((maj) << 16) + (min))
#else
# define GS_CLANG_MINREQ(maj, min) 0
#endif
/* Attribute definitions for attributes which may or may not be supported
* depending on the compiler being used.
* NB we currently expect gcc to be version 4 or later.
*
* The definition should be of the form GS_XXX_CONTEXT where XXX is the
* name of the attribute and CONTEXT is one of FUNC, METH, or IVAR
* depending on where the attribute can be applied.
*/
#if defined(__clang__) || GS_GCC_MINREQ(3,1)
# define GS_DEPRECATED_FUNC __attribute__ ((deprecated))
#else
# define GS_DEPRECATED_FUNC
#endif
#define GS_UNUSED_ARG __attribute__((unused))
#define GS_UNUSED_FUNC __attribute__((unused))
// FIXME ... what version of gcc?
#if __clang__
# define GS_UNUSED_IVAR __attribute__((unused))
#else
# define GS_UNUSED_IVAR
#endif
#ifndef __has_feature
#define __has_feature(x) 0
#endif
/* The following is for deciding whether private instance variables
* should be visible ... if we are building with a compiler which
* does not define __has_feature then we know we don't have non-fragile
* ivar support.
* In the header we bracket instance variable declarations in a
* '#if GS_EXPOSE(classname) ... #endif' sequence, so that the variables
* will not be visible to code which uses the library.
* In the source file we define EXPOSE_classname_IVARS to be 1
* before including the header, so that the ivars are always available
* in the class source itsself
*/
#if GS_MIXEDABI
# undef GS_NONFRAGILE
# define GS_NONFRAGILE 0 /* Mixed is treated as fragile */
#else
# if (__has_feature(objc_nonfragile_abi))
# if !GS_NONFRAGILE
# if defined(GNUSTEP_BASE_INTERNAL)
# error "You are building gnustep-base using the objc-nonfragile-abi but your gnustep-base was not configured to use it."
# endif
# endif
# else
# if GS_NONFRAGILE
# error "Your gnustep-base was configured for the objc-nonfragile-abi but you are not using it now."
# endif
# endif
#endif
#define GS_EXPOSE(X) (!GS_NONFRAGILE || defined(EXPOSE_##X##_IVARS))
/* Static analyser macros: Provide annotations to help the analyser */
#ifdef __clang__
# define GS_NORETURN_METHOD __attribute__((__noreturn__))
#else
# define GS_NORETURN_METHOD
#endif
#ifndef NS_RETURNS_RETAINED
# if __has_feature(attribute_ns_returns_retained)
# define NS_RETURNS_RETAINED __attribute__((ns_returns_retained))
# else
# define NS_RETURNS_RETAINED
# endif
#endif
#ifndef NS_RETURNS_NOT_RETAINED
# if __has_feature(attribute_ns_returns_not_retained)
# define NS_RETURNS_NOT_RETAINED __attribute__((ns_returns_not_retained))
# else
# define NS_RETURNS_NOT_RETAINED
# endif
#endif
#ifndef NS_CONSUMED
# if __has_feature(attribute_ns_consumed)
# define NS_CONSUMED __attribute__((ns_consumed))
# else
# define NS_CONSUMED
# endif
#endif
#ifndef NS_CONSUMES_SELF
# if __has_feature(attribute_ns_consumes_self)
# define NS_CONSUMES_SELF __attribute__((ns_consumes_self))
# else
# define NS_CONSUMES_SELF
# endif
#endif
#if defined(__clang__) && defined(__OBJC__)
static inline void gs_consumed(id NS_CONSUMED o) GS_UNUSED_FUNC;
static inline void gs_consumed(id NS_CONSUMED GS_UNUSED_ARG o) { return; }
#define GS_CONSUMED(O) gs_consumed(O);
#else
#define GS_CONSUMED(O)
#endif
/* Include the appropriate header for ObjC2 blocks support if it is in use.
*
* FIXME: "OBJC2RUNTIME" is set to "1" if the runtime supports the ObjC2
* runtime API, which is unrelated to whether the compiler has blocks
* support or not.
*/
#if __has_feature(blocks)
# if OBJC2RUNTIME
# if defined(__APPLE__)
# include <Block.h>
# else
# include <objc/blocks_runtime.h>
# endif
# else
# include <ObjectiveC2/blocks_runtime.h>
# endif
#endif
/* Attribute definition for root classes, annotates the interface declaration
* of the class.
*/
#ifndef GS_ROOT_CLASS
# if GS_HAVE_OBJC_ROOT_CLASS_ATTR || __has_feature(attribute_objc_root_class)
# define GS_ROOT_CLASS __attribute__((objc_root_class))
# else
# define GS_ROOT_CLASS
# endif
#endif
#if defined(GNUSTEP_WITH_DLL)
#if BUILD_libgnustep_base_DLL
#
# if defined(__MINGW__)
/* On Mingw, the compiler will export all symbols automatically, so
* __declspec(dllexport) is not needed.
*/
# define GS_EXPORT extern
# define GS_DECLARE
# else
# define GS_EXPORT __declspec(dllexport)
# define GS_DECLARE __declspec(dllexport)
# endif
#else
# define GS_EXPORT extern __declspec(dllimport)
# define GS_DECLARE __declspec(dllimport)
#endif
#else /* GNUSTEP_WITH[OUT]_DLL */
# define GS_EXPORT extern
# define GS_DECLARE
#endif
/* Attribute macros compatible with Apple.
*/
#ifndef NS_FORMAT_ARGUMENT
#if defined(__clang__) || GS_GCC_MINREQ(4,2)
# define NS_FORMAT_ARGUMENT(A) __attribute__((format_arg(A)))
#else
# define NS_FORMAT_ARGUMENT(F,A)
#endif
#endif
// FIXME ... what version of gcc?
#ifndef NS_FORMAT_FUNCTION
#if __clang__
# define NS_FORMAT_FUNCTION(F,A) __attribute__((format(__NSString__, F, A)))
#else
# define NS_FORMAT_FUNCTION(F,A)
#endif
#endif
#ifndef NS_REQUIRES_NIL_TERMINATION
#define NS_REQUIRES_NIL_TERMINATION __attribute__((sentinel))
#endif
// FIXME ... what exact version of clang and gcc?
#ifndef UNAVAILABLE_ATTRIBUTE
#if defined(__clang__) || GS_GCC_MINREQ(4,0)
# define UNAVAILABLE_ATTRIBUTE __attribute__((unavailable))
#else
# define UNAVAILABLE_ATTRIBUTE
#endif
#endif
/* Check if compiler supports @optional in protocols
*/
#if defined(__clang__) || GS_GCC_MINREQ(4,6)
# define GS_PROTOCOLS_HAVE_OPTIONAL 1
#else
# define GS_PROTOCOLS_HAVE_OPTIONAL 0
#endif
/* Check if compiler supports declared properties
*/
#if defined(__clang__) || GS_GCC_MINREQ(4,6)
# define GS_HAS_DECLARED_PROPERTIES 1
#else
# define GS_HAS_DECLARED_PROPERTIES 0
#endif
#endif /* __GNUSTEP_GSVERSIONMACROS_H_INCLUDED_ */
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