haiku/headers/compatibility/bsd/features.h

/*
 * Copyright 2019 Haiku, Inc. All rights reserved.
 * Distributed under the terms of the MIT License.
 */
#ifndef _FEATURES_H
#define _FEATURES_H


#if defined(_BSD_SOURCE) \
	|| (!defined(__STRICT_ANSI__) && !defined(_POSIX_C_SOURCE))
	#define _DEFAULT_SOURCE
#endif


#if defined(__STDC_VERSION__) && __STDC_VERSION__ >= 201112L
	#define _ISOC11_SOURCE
#endif


#endif // _FEATURES_H
Add a features.h to auto enable _DEFAULT_SOURCE Unless __STRICT_ANSI__ is defined (as it is when running the compiler in --std=c89 or --std=c99, but not when running it without any specific args), we can enable these by default and behave like most other systems. I don't know why no one has done this yet despite suggesting it multiple times and people prefer to #define _BSD_SOURCE manually everywhere. Remove all places in our Jamfiles and sources where it had been defined. _DEFAULT_SOURCE is now enabled by default for all sources of Haiku, since we let the compiler use GNU extensions (no strict C standard specified on command line) Use _DEFAULT_SOURCE as the define name to match current versions of glibc. Enable it if _BSD_SOURCE is #defined in compiler flags, for backward compatibility. Change-Id: I6db04da5f6db437723cdfba3478f5094a69d7727 Reviewed-on: https://review.haiku-os.org/c/1633 Reviewed-by: Jérôme Duval <jerome.duval@gmail.com> 2019-07-20 13:02:02 +03:00			`/*`
			`* Copyright 2019 Haiku, Inc. All rights reserved.`
			`* Distributed under the terms of the MIT License.`
			`*/`
			`#ifndef _FEATURES_H`
			`#define _FEATURES_H`


			`#if defined(_BSD_SOURCE) \`
			`\|\| (!defined(__STRICT_ANSI__) && !defined(_POSIX_C_SOURCE))`
			`#define _DEFAULT_SOURCE`
			`#endif`


C11: add aligned_alloc() Change-Id: If648c0e27ed946874d393e8e33a4548b70c8ecdb Reviewed-on: https://review.haiku-os.org/c/haiku/+/3377 Reviewed-by: Adrien Destugues <pulkomandy@gmail.com> 2020-10-31 22:34:20 +03:00			`#if defined(__STDC_VERSION__) && __STDC_VERSION__ >= 201112L`
			`#define _ISOC11_SOURCE`
			`#endif`


Add a features.h to auto enable _DEFAULT_SOURCE Unless __STRICT_ANSI__ is defined (as it is when running the compiler in --std=c89 or --std=c99, but not when running it without any specific args), we can enable these by default and behave like most other systems. I don't know why no one has done this yet despite suggesting it multiple times and people prefer to #define _BSD_SOURCE manually everywhere. Remove all places in our Jamfiles and sources where it had been defined. _DEFAULT_SOURCE is now enabled by default for all sources of Haiku, since we let the compiler use GNU extensions (no strict C standard specified on command line) Use _DEFAULT_SOURCE as the define name to match current versions of glibc. Enable it if _BSD_SOURCE is #defined in compiler flags, for backward compatibility. Change-Id: I6db04da5f6db437723cdfba3478f5094a69d7727 Reviewed-on: https://review.haiku-os.org/c/1633 Reviewed-by: Jérôme Duval <jerome.duval@gmail.com> 2019-07-20 13:02:02 +03:00			`#endif // _FEATURES_H`