X-Git-Url: http://erislabs.net/gitweb/?a=blobdiff_plain;f=lib%2Fgetpagesize.h;h=8863336666e9ae633102a628037e93457226e365;hb=ccd54782ae73477aa3f3987ab04db9e6fde025d6;hp=4e513c31adeb08b93ecb7e01f5496544ca62f5bb;hpb=3dba1682f1b6f9a19fc9df51cae3ea9c3c273951;p=gnulib.git

diff --git a/lib/getpagesize.h b/lib/getpagesize.h
index 4e513c31a..886333666 100644
--- a/lib/getpagesize.h
+++ b/lib/getpagesize.h
@@ -1,35 +1,68 @@
-/* Emulate getpagesize on systems that lack it.  */
+/* 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 2, 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, write to the Free Software
+   Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301,
+   USA.  */
 
 #ifndef HAVE_GETPAGESIZE
 
-#ifdef VMS
-#define getpagesize() 512
+#include <unistd.h>
+
+#if !defined getpagesize && defined _SC_PAGESIZE
+# if ! (defined __VMS && __VMS_VER < 70000000)
+#  define getpagesize() sysconf (_SC_PAGESIZE)
+# endif
 #endif
 
-#ifdef HAVE_UNISTD_H
-#include <unistd.h>
+#if !defined getpagesize && defined __VMS
+# ifdef __ALPHA
+#  define getpagesize() 8192
+# else
+#  define getpagesize() 512
+# endif
 #endif
 
-#ifdef _SC_PAGESIZE
-#define getpagesize() sysconf(_SC_PAGESIZE)
-#else
-
-#include <sys/param.h>
-
-#ifdef EXEC_PAGESIZE
-#define getpagesize() EXEC_PAGESIZE
-#else
-#ifdef NBPG
-#define getpagesize() NBPG * CLSIZE
-#ifndef CLSIZE
-#define CLSIZE 1
-#endif /* no CLSIZE */
-#else /* no NBPG */
-#ifdef NBPC
-#define getpagesize() NBPC
-#endif /* NBPC */
-#endif /* no NBPG */
-#endif /* no EXEC_PAGESIZE */
-#endif /* no _SC_PAGESIZE */
+/* 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 */