/* Copyright (C) 1992 Free Software Foundation, Inc.
This file is part of the GNU C Library.

The GNU C Library is free software; you can redistribute it and/or
modify it under the terms of the GNU Library General Public License as
published by the Free Software Foundation; either version 2 of the
License, or (at your option) any later version.

The GNU 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
Library General Public License for more details.

You should have received a copy of the GNU Library General Public
License along with the GNU C Library; see the file COPYING.LIB.  If
not, write to the, 1992 Free Software Foundation, Inc., 675 Mass Ave,
Cambridge, MA 02139, USA.  */

#ifndef	_ALLOCA_H
#define	_ALLOCA_H	1
#include <features.h>

#define	__need_size_t
#include <stddef.h>

__BEGIN_DECLS

/* Remove any previous definitions.  */
#undef	__alloca
#undef	alloca

/* Allocate a block that will be freed when the calling function exits.  */
extern __ptr_t __alloca __P ((size_t __size));

/* `alloca' is a built-in function for gcc 2.x. */
#if defined(__STDC__) || __GNUC__ < 2
extern __ptr_t alloca __P ((size_t __size));
#endif

#ifdef	__GNUC__
#define	__alloca(size)	__builtin_alloca(size)
#endif /* GCC.  */

#define	alloca(size)	__alloca(size)

__END_DECLS

#endif /* alloca.h */
