sortix--sortix/libc/include/features.h

/*******************************************************************************

	Copyright(C) Jonas 'Sortie' Termansen 2011.

	This file is part of the Sortix C Library.

	The Sortix C Library is free software: you can redistribute it and/or modify
	it under the terms of the GNU Lesser General Public License as published by
	the Free Software Foundation, either version 3 of the License, or (at your
	option) any later version.

	The Sortix C Library 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 Lesser General Public
	License for more details.

	You should have received a copy of the GNU Lesser General Public License
	along with the Sortix C Library. If not, see <http://www.gnu.org/licenses/>.

	features.h
	Various things for various systems, programs, compabillity, and whatnot.

*******************************************************************************/

#ifndef	_FEATURES_H
#define	_FEATURES_H	1

/* C++ needs to know that types and declarations are C, not C++. */
#ifdef	__cplusplus
	#define __BEGIN_DECLS	extern "C" {
	#define __END_DECLS		}
#else
	#define __BEGIN_DECLS
	#define __END_DECLS
#endif

/* Sortix system components implicitly use the native API. */
#if defined(LIBC_LIBRARY) || defined(SORTIX_KERNEL)
#define _SORTIX_SOURCE 1
#endif

/* By default, assume the source is compiled using the native API. */
#if !defined(_SORTIX_SOURCE) && \
    !defined(_POSIX_SOURCE) && !defined(_POSIX_C_SOURCE) && \
    !defined(_BSD_SOURCE) && \
    !defined(_SVID_SOURCE) && \
    !defined(_XOPEN_SOURCE) && !defined(_XOPEN_SOURCE_EXTENDED) && \
    !defined(_GNU_SOURCE) && \
    1
	#define _SORTIX_SOURCE 1
#endif

/* Whether to override some "standard" functions with Sortix alternatives. */
#if !defined(__SORTIX_STDLIB_REDIRECTS)
	#if defined(_SORTIX_SOURCE)
		#define __SORTIX_STDLIB_REDIRECTS 1
	#else
		#define __SORTIX_STDLIB_REDIRECTS 0
	#endif
#endif

#define restrict

/* TODO: Improve these declarations, perhaps like they are in glibc. */
#define __POSIX_NO_OBSOLETE

#ifdef __POSIX_NO_OBSOLETE
	#define __POSIX_OBSOLETE 999999L
#else
	#define __POSIX_OBSOLETE 200112L
#endif

/* Don't provide things from standard headers that is not implemented. */
/*#define __SORTIX_SHOW_UNIMPLEMENTED*/

#include <sortix/bits.h>


#endif