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/* Check which version of the API and ABI are appropriate for the target.
Copyright (C) 2010, 2011 Free Software Foundation, Inc.
Contributed by Iain Sandoe <iains@gcc.gnu.org>
This file is part of GCC.
GCC is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 3, or (at your option)
any later version.
GCC 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 General Public License for more details.
You should have received a copy of the GNU General Public License
along with GCC; see the file COPYING3. If not see
<http://www.gnu.org/licenses/>. */
#ifndef _OBJC_NEXT_ABI_H_
#define _OBJC_NEXT_ABI_H_
/* Produce a define that allows us to figure out what facilities are
available for this gcc and OS combination.
*/
/* By default we do nothing - therefore ifdef NEXT_OBJC_USE_NEW_INTERFACE
* is reliable for detecting versions of the target that require either
* API=2, or both API & ABI = 2 (m64 code).
*
* This applies for versions of OSX >= 10.5 (darwin9).
*
* A compiler capable of producing ObjC V2 ABI should define __OBJC2__
*/
#undef NEXT_OBJC_ABI_VERSION
#undef NEXT_OBJC_USE_NEW_INTERFACE
#ifdef __NEXT_RUNTIME__
# if (__ENVIRONMENT_MAC_OS_X_VERSION_MIN_REQUIRED__ >= 1050 || __OBJC2__)
/* We have to use an updated interface for 32bit NeXT to avoid
* 'deprecated' warnings.
* For 64bit NeXT the ABI is different (and the interfaces 'deprecated'
* for 32bit have been removed).
*/
# define NEXT_OBJC_USE_NEW_INTERFACE 1
# if __OBJC2__ || __LP64__
/* We have OBJC v2 ABI compiler,
(or, at least, the available NeXT runtime requires one) */
# define NEXT_OBJC_ABI_VERSION 2
# else
/* We leave it open to define ABI 1 if and when we implement those
* extensions.
*/
# define NEXT_OBJC_ABI_VERSION 0
# endif
# else
/* Pre-OSX 10.5 all is ABI 0. */
# define NEXT_OBJC_ABI_VERSION 0
# endif /* MAC_OS_X_VERSION_MIN_REQUIRED > 10.5 or OBJC2 */
#endif /* __NEXT_RUNTIME__ */
#endif /* _OBJC_NEXT_ABI_H_ */
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