/* Which POSIX version to conform to, for utilities.
- Copyright (C) 2002 Free Software Foundation, Inc.
+ Copyright (C) 2002-2006, 2009-2013 Free Software Foundation, Inc.
- This program is free software; you can redistribute it and/or modify
+ 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.
+ the Free Software Foundation; either version 3 of the License, 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., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */
+ You should have received a copy of the GNU General Public License
+ along with this program. If not, see <http://www.gnu.org/licenses/>. */
/* Written by Paul Eggert. */
-#if HAVE_CONFIG_H
-# include <config.h>
-#endif
+#include <config.h>
-#include <limits.h>
+#include "posixver.h"
+#include <limits.h>
#include <stdlib.h>
-#if !HAVE_DECL_GETENV && !defined getenv
-char *getenv ();
-#endif
-#if HAVE_UNISTD_H
-# include <unistd.h>
-#endif
+#include <unistd.h>
#ifndef _POSIX2_VERSION
# define _POSIX2_VERSION 0
#endif
+#ifndef DEFAULT_POSIX2_VERSION
+# define DEFAULT_POSIX2_VERSION _POSIX2_VERSION
+#endif
+
/* The POSIX version that utilities should conform to. The default is
specified by the system. */
int
posix2_version (void)
{
- long int v = _POSIX2_VERSION;
+ long int v = DEFAULT_POSIX2_VERSION;
char const *s = getenv ("_POSIX2_VERSION");
if (s && *s)
char *e;
long int i = strtol (s, &e, 10);
if (! *e)
- v = i;
+ v = i;
}
return v < INT_MIN ? INT_MIN : v < INT_MAX ? v : INT_MAX;