blob: c06d3c1d0d0ca205d58d3e47c38752cfa30e57c9 [file] [log] [blame] [edit]
/*
* Copyright (c) 2015 Dmitry V. Levin <ldv@altlinux.org>
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. The name of the author may not be used to endorse or promote products
* derived from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#ifndef GCC_COMPAT_H_
#define GCC_COMPAT_H_
#if defined __GNUC__ && defined __GNUC_MINOR__
# define GNUC_PREREQ(maj, min) \
((__GNUC__ << 16) + __GNUC_MINOR__ >= ((maj) << 16) + (min))
#else
# define __attribute__(x) /* empty */
# define GNUC_PREREQ(maj, min) 0
#endif
#if GNUC_PREREQ(2, 5)
# define ATTRIBUTE_NORETURN __attribute__((__noreturn__))
#else
# define ATTRIBUTE_NORETURN /* empty */
#endif
#if GNUC_PREREQ(2, 7)
# define ATTRIBUTE_FORMAT(args) __attribute__((__format__ args))
# define ATTRIBUTE_ALIGNED(arg) __attribute__((__aligned__(arg)))
# define ATTRIBUTE_PACKED __attribute__((__packed__))
#else
# define ATTRIBUTE_FORMAT(args) /* empty */
# define ATTRIBUTE_ALIGNED(arg) /* empty */
# define ATTRIBUTE_PACKED /* empty */
#endif
#if GNUC_PREREQ(3, 0)
# define ATTRIBUTE_MALLOC __attribute__((__malloc__))
#else
# define ATTRIBUTE_MALLOC /* empty */
#endif
#if GNUC_PREREQ(3, 1)
# define ATTRIBUTE_NOINLINE __attribute__((__noinline__))
#else
# define ATTRIBUTE_NOINLINE /* empty */
#endif
#if GNUC_PREREQ(4, 0)
# define ATTRIBUTE_SENTINEL __attribute__((__sentinel__))
#else
# define ATTRIBUTE_SENTINEL /* empty */
#endif
#if GNUC_PREREQ(4, 3)
# define ATTRIBUTE_ALLOC_SIZE(args) __attribute__((__alloc_size__ args))
#else
# define ATTRIBUTE_ALLOC_SIZE(args) /* empty */
#endif
#endif