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jeremybenn |
/* Check which version of the API and ABI are appropriate for the target.
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Copyright (C) 2010, 2011 Free Software Foundation, Inc.
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Contributed by Iain Sandoe <iains@gcc.gnu.org>
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This file is part of GCC.
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GCC is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 3, or (at your option)
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any later version.
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GCC is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with GCC; see the file COPYING3. If not see
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<http://www.gnu.org/licenses/>. */
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#ifndef _OBJC_NEXT_ABI_H_
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#define _OBJC_NEXT_ABI_H_
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/* Produce a define that allows us to figure out what facilities are
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available for this gcc and OS combination.
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*/
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/* By default we do nothing - therefore ifdef NEXT_OBJC_USE_NEW_INTERFACE
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* is reliable for detecting versions of the target that require either
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* API=2, or both API & ABI = 2 (m64 code).
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*
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* This applies for versions of OSX >= 10.5 (darwin9).
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*
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* A compiler capable of producing ObjC V2 ABI should define __OBJC2__
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*/
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#undef NEXT_OBJC_ABI_VERSION
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#undef NEXT_OBJC_USE_NEW_INTERFACE
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#ifdef __NEXT_RUNTIME__
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# if (__ENVIRONMENT_MAC_OS_X_VERSION_MIN_REQUIRED__ >= 1050 || __OBJC2__)
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/* We have to use an updated interface for 32bit NeXT to avoid
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* 'deprecated' warnings.
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* For 64bit NeXT the ABI is different (and the interfaces 'deprecated'
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* for 32bit have been removed).
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*/
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# define NEXT_OBJC_USE_NEW_INTERFACE 1
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# if __OBJC2__ || __LP64__
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/* We have OBJC v2 ABI compiler,
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(or, at least, the available NeXT runtime requires one) */
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# define NEXT_OBJC_ABI_VERSION 2
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# else
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/* We leave it open to define ABI 1 if and when we implement those
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* extensions.
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*/
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# define NEXT_OBJC_ABI_VERSION 0
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# endif
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# else
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/* Pre-OSX 10.5 all is ABI 0. */
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# define NEXT_OBJC_ABI_VERSION 0
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# endif /* MAC_OS_X_VERSION_MIN_REQUIRED > 10.5 or OBJC2 */
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#endif /* __NEXT_RUNTIME__ */
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#endif /* _OBJC_NEXT_ABI_H_ */
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