-# setenv.m4 serial 5
-dnl Copyright (C) 2001-2004 Free Software Foundation, Inc.
-dnl This file is free software, distributed under the terms of the GNU
-dnl General Public License. As a special exception to the GNU General
-dnl Public License, this file may be distributed as part of a program
-dnl that contains a configuration script generated by Autoconf, under
-dnl the same distribution terms as the rest of that program.
+# setenv.m4 serial 8
+dnl Copyright (C) 2001-2004, 2006-2007 Free Software Foundation, Inc.
+dnl This file is free software; the Free Software Foundation
+dnl gives unlimited permission to copy and/or distribute it,
+dnl with or without modifications, as long as this notice is preserved.
-AC_DEFUN([gt_FUNC_SETENV],
+AC_DEFUN([gl_FUNC_SETENV],
[
- AC_REPLACE_FUNCS(setenv unsetenv)
+ AC_CHECK_FUNCS_ONCE([setenv])
if test $ac_cv_func_setenv = no; then
+ AC_LIBOBJ([setenv])
gl_PREREQ_SETENV
fi
+])
+
+# Like gl_FUNC_SETENV, except prepare for separate compilation (no AC_LIBOBJ).
+AC_DEFUN([gl_FUNC_SETENV_SEPARATE],
+[
+ AC_CHECK_FUNCS_ONCE([setenv])
+ gl_PREREQ_SETENV
+])
+
+AC_DEFUN([gl_FUNC_UNSETENV],
+[
+ AC_CHECK_FUNCS([unsetenv])
if test $ac_cv_func_unsetenv = no; then
+ AC_LIBOBJ([unsetenv])
gl_PREREQ_UNSETENV
else
AC_CACHE_CHECK([for unsetenv() return type], gt_cv_func_unsetenv_ret,
AC_CHECK_HEADERS_ONCE(unistd.h)
AC_CHECK_HEADERS(search.h)
AC_CHECK_FUNCS(tsearch)
- gt_CHECK_VAR_DECL([#include <errno.h>], errno)
gt_CHECK_VAR_DECL([#include <unistd.h>], environ)
])
AC_DEFUN([gl_PREREQ_UNSETENV],
[
AC_CHECK_HEADERS_ONCE(unistd.h)
- gt_CHECK_VAR_DECL([#include <errno.h>], errno)
gt_CHECK_VAR_DECL([#include <unistd.h>], environ)
])