HCoop / bpt / emacs.git / blame
| Commit | Line | Data |
|---|---|---|
| b3ae7a0a GM |
1 | /* Emulate getpagesize on systems that lack it. |
| 2 | Copyright (C) 1986, 1992, 1995, 2001 Free Software Foundation, Inc. | |
| 3 | ||
| 4 | This file is part of GNU Emacs. | |
| 5 | ||
| 6 | GNU Emacs is free software; you can redistribute it and/or modify | |
| 7 | it under the terms of the GNU General Public License as published by | |
| 8 | the Free Software Foundation; either version 2, or (at your option) | |
| 9 | any later version. | |
| 10 | ||
| 11 | GNU Emacs is distributed in the hope that it will be useful, | |
| 12 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
| 13 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
| 14 | GNU General Public License for more details. | |
| 15 | ||
| 16 | You should have received a copy of the GNU General Public License | |
| 17 | along with GNU Emacs; see the file COPYING. If not, write to | |
| 18 | the Free Software Foundation, Inc., 59 Temple Place - Suite 330, | |
| 19 | Boston, MA 02111-1307, USA. */ | |
| bac7913a RM |
20 | |
| 21 | #ifndef HAVE_GETPAGESIZE | |
| 22 | ||
| eb93fe6a DM |
23 | # ifdef VMS |
| 24 | # define getpagesize() 512 | |
| 25 | # endif | |
| bac7913a | 26 | |
| eb93fe6a DM |
27 | # ifdef HAVE_UNISTD_H |
| 28 | # include <unistd.h> | |
| 29 | # endif | |
| bac7913a | 30 | |
| eb93fe6a DM |
31 | # ifdef _SC_PAGESIZE |
| 32 | # define getpagesize() sysconf(_SC_PAGESIZE) | |
| 4b45d671 DM |
33 | # else /* no _SC_PAGESIZE */ |
| 34 | # ifdef HAVE_SYS_PARAM_H | |
| 35 | # include <sys/param.h> | |
| 36 | # ifdef EXEC_PAGESIZE | |
| 37 | # define getpagesize() EXEC_PAGESIZE | |
| 38 | # else /* no EXEC_PAGESIZE */ | |
| 39 | # ifdef NBPG | |
| 40 | # define getpagesize() NBPG * CLSIZE | |
| 41 | # ifndef CLSIZE | |
| 42 | # define CLSIZE 1 | |
| 43 | # endif /* no CLSIZE */ | |
| 44 | # else /* no NBPG */ | |
| 45 | # ifdef NBPC | |
| 46 | # define getpagesize() NBPC | |
| 47 | # else /* no NBPC */ | |
| 48 | # ifdef PAGESIZE | |
| 49 | # define getpagesize() PAGESIZE | |
| 50 | # endif /* PAGESIZE */ | |
| 51 | # endif /* no NBPC */ | |
| 52 | # endif /* no NBPG */ | |
| 53 | # endif /* no EXEC_PAGESIZE */ | |
| 54 | # else /* no HAVE_SYS_PARAM_H */ | |
| 55 | # define getpagesize() 8192 /* punt totally */ | |
| 56 | # endif /* no HAVE_SYS_PARAM_H */ | |
| eb93fe6a | 57 | # endif /* no _SC_PAGESIZE */ |
| bac7913a | 58 | |
| eb93fe6a | 59 | #endif /* no HAVE_GETPAGESIZE */ |