-# getsubopt.m4 serial 2
-dnl Copyright (C) 2004 Free Software Foundation, Inc.
+# getsubopt.m4 serial 4
+dnl Copyright (C) 2004, 2007, 2009, 2010 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
+ HAVE_GETSUBOPT=0
+ AC_LIBOBJ([getsubopt])
gl_PREREQ_GETSUBOPT
fi
])