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/*
* attributes.h
* Copyright (C) 1999-2000 Aaron Holtzman <aholtzma@ess.engr.uvic.ca>
* Copyright (C) 2001-2008 xine developers
*
* This file was originally part of mpeg2dec, a free MPEG-2 video stream
* decoder.
*
* mpeg2dec 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 2 of the License, or
* (at your option) any later version.
*
* mpeg2dec 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 this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110, USA
*/
/* use gcc attribs to align critical data structures */
#ifndef ATTRIBUTE_H_
#define ATTRIBUTE_H_
#ifdef ATTRIBUTE_ALIGNED_MAX
#define ATTR_ALIGN(align) __attribute__ ((__aligned__ ((ATTRIBUTE_ALIGNED_MAX < align) ? ATTRIBUTE_ALIGNED_MAX : align)))
#else
#define ATTR_ALIGN(align)
#endif
#ifdef XINE_COMPILE
# include "configure.h"
#else
# if __GNUC__ > 2 || (__GNUC__ == 2 && __GNUC_MINOR__ >= 95 )
# define SUPPORT_ATTRIBUTE_PACKED 1
# endif
# if __GNUC__ > 3 || (__GNUC__ == 3 && __GNUC_MINOR__ >= 3 )
# define SUPPORT_ATTRIBUTE_DEPRECATED 1
# define SUPPORT_ATTRIBUTE_FORMAT 1
# define SUPPORT_ATTRIBUTE_FORMAT_ARG 1
# define SUPPORT_ATTRIBUTE_MALLOC 1
# define SUPPORT_ATTRIBUTE_UNUSED 1
# define SUPPORT_ATTRIBUTE_CONST 1
# endif
# if __GNUC__ >= 4
# define SUPPORT_ATTRIBUTE_VISIBILITY_DEFAULT 1
# if __ELF__
# define SUPPORT_ATTRIBUTE_VISIBILITY_PROTECTED 1
# endif
# define SUPPORT_ATTRIBUTE_SENTINEL 1
# endif
#endif
/* Export protected only for libxine functions */
#if defined(XINE_LIBRARY_COMPILE) && defined(SUPPORT_ATTRIBUTE_VISIBILITY_PROTECTED)
# define XINE_PROTECTED __attribute__((__visibility__("protected")))
#elif defined(XINE_LIBRARY_COMPILE) && defined(SUPPORT_ATTRIBUTE_VISIBILITY_DEFAULT)
# define XINE_PROTECTED __attribute__((__visibility__("default")))
#else
# define XINE_PROTECTED
#endif
#ifdef SUPPORT_ATTRIBUTE_SENTINEL
# define XINE_SENTINEL __attribute__((__sentinel__))
#else
# define XINE_SENTINEL
#endif
#if defined(SUPPORT_ATTRIBUTE_DEPRECATED) && !defined(XINE_COMPILE)
# define XINE_DEPRECATED __attribute__((__deprecated__))
#else
# define XINE_DEPRECATED
#endif
#ifndef __attr_unused
# ifdef SUPPORT_ATTRIBUTE_UNUSED
# define __attr_unused __attribute__((__unused__))
# else
# define __attr_unused
# endif
#endif
/* Format attributes */
#ifdef SUPPORT_ATTRIBUTE_FORMAT
# define XINE_FORMAT_PRINTF(fmt,var) __attribute__((__format__(__printf__, fmt, var)))
# define XINE_FORMAT_SCANF(fmt,var) __attribute__((__format__(__scanf__, fmt, var)))
#else
# define XINE_FORMAT_PRINTF(fmt,var)
# define XINE_FORMAT_SCANF(fmt,var)
#endif
#ifdef SUPPORT_ATTRIBUTE_FORMAT_ARG
# define XINE_FORMAT_PRINTF_ARG(fmt) __attribute__((__format_arg__(fmt)))
#else
# define XINE_FORMAT_PRINTF_ARG(fmt)
#endif
#ifdef SUPPORT_ATTRIBUTE_MALLOC
# define XINE_MALLOC __attribute__((__malloc__))
#else
# define XINE_MALLOC
#endif
#ifdef SUPPORT_ATTRIBUTE_PACKED
# define XINE_PACKED __attribute__((__packed__))
#else
# define XINE_PACKED
#endif
#ifdef SUPPORT_ATTRIBUTE_CONST
# define XINE_CONST __attribute__((__const__))
#else
# define XINE_CONST
#endif
#endif /* ATTRIBUTE_H_ */
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