1 /* Emulate getpagesize on systems that lack it.
2 Copyright (C) 1999, 2000, 2004, 2005 Free Software Foundation, Inc.
4 This program is free software; you can redistribute it and/or modify
5 it under the terms of the GNU General Public License as published by
6 the Free Software Foundation; either version 2, or (at your option)
9 This program is distributed in the hope that it will be useful,
10 but WITHOUT ANY WARRANTY; without even the implied warranty of
11 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
12 GNU General Public License for more details.
14 You should have received a copy of the GNU General Public License
15 along with this program; if not, write to the Free Software
16 Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301,
19 #ifndef HAVE_GETPAGESIZE
23 #if !defined getpagesize && defined _SC_PAGESIZE
24 # if !(defined VMS && __VMS_VER < 70000000)
25 # define getpagesize() sysconf (_SC_PAGESIZE)
29 #if !defined getpagesize && defined VMS
31 # define getpagesize() 8192
33 # define getpagesize() 512
37 /* This is for BeOS. */
38 #if !defined getpagesize && HAVE_OS_H
40 # if defined B_PAGE_SIZE
41 # define getpagesize() B_PAGE_SIZE
45 #if !defined getpagesize && HAVE_SYS_PARAM_H
46 # include <sys/param.h>
48 # define getpagesize() EXEC_PAGESIZE
54 # define getpagesize() (NBPG * CLSIZE)
57 # define getpagesize() NBPC
63 #endif /* not HAVE_GETPAGESIZE */