This commit was manufactured by cvs2svn to create branch 'chise-r21-4-18'.

[chise/xemacs-chise.git-] / src / getpagesize.h

diff --git a/src/getpagesize.h b/src/getpagesize.h
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+/* This file is part of XEmacs.
+
+XEmacs 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.
+
+XEmacs 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 XEmacs; see the file COPYING.  If not, write to
+the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+Boston, MA 02111-1307, USA.  */
+
+/* Synched up with: FSF 19.30. */
+
+#ifndef INCLUDED_getpagesize_h_
+#define INCLUDED_getpagesize_h_
+
+/* Emulate getpagesize on systems that lack it.  */
+
+#if 0
+#ifdef __hpux
+#include <sys/types.h>
+static size_t getpagesize() { return( 4096 ); }
+#define HAVE_GETPAGESIZE
+#endif
+#endif
+
+#ifndef HAVE_GETPAGESIZE
+
+#ifdef HAVE_UNISTD_H
+#include <unistd.h>
+#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 */
+#if (defined (sparc) && defined (USG)) || defined (SOLARIS2)
+#define getpagesize() PAGESIZE
+#else /* not Solaris 2 */
+#ifdef NBPC
+#define getpagesize() NBPC
+#else /* no NBPC */
+#ifdef PAGESIZE
+#define getpagesize() PAGESIZE
+#endif
+#endif /* NBPC */
+#endif /* not Solaris 2 */
+#endif /* no NBPG */
+#endif /* no EXEC_PAGESIZE */
+#endif /* _SC_PAGESIZE */
+#endif /* not HAVE_GETPAGESIZE */
+
+#endif /* INCLUDED_getpagesize_h_ */