-# getsubopt.m4 serial 1
-dnl Copyright (C) 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.
+# getsubopt.m4 serial 5
+dnl Copyright (C) 2004, 2007, 2009-2013 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([gl_FUNC_GETSUBOPT],
[
dnl Persuade glibc <stdlib.h> to declare getsubopt().
- AC_REQUIRE([AC_GNU_SOURCE])
+ AC_REQUIRE([AC_USE_SYSTEM_EXTENSIONS])
- AC_REPLACE_FUNCS(getsubopt)
+ AC_REQUIRE([gl_STDLIB_H_DEFAULTS])
+ AC_CHECK_FUNCS_ONCE([getsubopt])
if test $ac_cv_func_getsubopt = no; then
- gl_PREREQ_GETSUBOPT
+ HAVE_GETSUBOPT=0
fi
])