+
−/* Emulate getpagesize on systems that lack it.  */
+
−
+
−#ifndef HAVE_GETPAGESIZE
+
−
+
−#ifdef HAVE_UNISTD_H
+
−# include <unistd.h>
+
−#endif
+
−
+
−#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
+
−
+
−#ifndef getpagesize
+
−# 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 */