/* Substitute for and wrapper around <unistd.h>.
- Copyright (C) 2004-2007 Free Software Foundation, Inc.
+ Copyright (C) 2004-2008 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)
+ the Free Software Foundation; either version 3, or (at your option)
any later version.
This program is distributed in the hope that it will be useful,
#endif
+#if @GNULIB_ENVIRON@
+# if !@HAVE_DECL_ENVIRON@
+/* Set of environment variables and values. An array of strings of the form
+ "VARIABLE=VALUE", terminated with a NULL. */
+# if defined __APPLE__ && defined __MACH__
+# include <crt_externs.h>
+# define environ (*_NSGetEnviron ())
+# else
+extern char **environ;
+# endif
+# endif
+#elif defined GNULIB_POSIXCHECK
+# undef environ
+# define environ \
+ (GL_LINK_WARNING ("environ is unportable - " \
+ "use gnulib module environ for portability"), \
+ environ)
+#endif
+
+
#if @GNULIB_FCHDIR@
# if @REPLACE_FCHDIR@
#endif
+#if @GNULIB_GETPAGESIZE@
+# if @REPLACE_GETPAGESIZE@
+# define getpagesize rpl_getpagesize
+extern int getpagesize (void);
+# elif !@HAVE_GETPAGESIZE@
+/* This is for POSIX systems. */
+# if !defined getpagesize && defined _SC_PAGESIZE
+# if ! (defined __VMS && __VMS_VER < 70000000)
+# define getpagesize() sysconf (_SC_PAGESIZE)
+# endif
+# endif
+/* This is for older VMS. */
+# 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
+/* This is for AmigaOS4.0. */
+# if !defined getpagesize && defined __amigaos4__
+# define getpagesize() 2048
+# endif
+/* This is for older Unix systems. */
+# 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
+#elif defined GNULIB_POSIXCHECK
+# undef getpagesize
+# define getpagesize() \
+ (GL_LINK_WARNING ("getpagesize is unportable - " \
+ "use gnulib module getpagesize for portability"), \
+ getpagesize ())
+#endif
+
+
#if @GNULIB_LCHOWN@
# if @REPLACE_LCHOWN@
/* Change the owner of FILE to UID (if UID is not -1) and the group of FILE