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/* Emulate getpagesize on systems that lack it.
Copyright (C) 1999, 2000, 2004, 2005 Free Software Foundation, Inc.
This program 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 3 of the License, or
(at your option) any later version.
This program 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, see <http://www.gnu.org/licenses/>. */
#ifndef HAVE_GETPAGESIZE
#include <unistd.h>
#if !defined getpagesize && defined _SC_PAGESIZE
# if ! (defined __VMS && __VMS_VER < 70000000)
# define getpagesize() sysconf (_SC_PAGESIZE)
# endif
#endif
#if !defined getpagesize && defined __VMS
# ifdef __ALPHA
# define getpagesize() 8192
# else
# define getpagesize() 512
# endif
#endif
/* This is for BeOS. */
#if !defined getpagesize && HAVE_OS_H
# include <OS.h>
# if defined B_PAGE_SIZE
# define getpagesize() B_PAGE_SIZE
# endif
#endif
/* This is for AmigaOS4.0. */
#if !defined getpagesize && defined __amigaos4__
# define getpagesize() 2048
#endif
#if !defined getpagesize && HAVE_SYS_PARAM_H
# include <sys/param.h>
# ifdef EXEC_PAGESIZE
# define getpagesize() EXEC_PAGESIZE
# else
# ifdef NBPG
# ifndef CLSIZE
# define CLSIZE 1
# endif
# define getpagesize() (NBPG * CLSIZE)
# else
# ifdef NBPC
# define getpagesize() NBPC
# endif
# endif
# endif
#endif
#endif /* not HAVE_GETPAGESIZE */
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