* lib/Automake/Variable.pm (@EXPORT): Remove traverse_variable_recursively and require_variables_for_variable. (require_variables_for_variable, traverse_variable_recursively) (_traverse_variable_recursively_worker): Convert to Automake::Variable methods, remove support for being invoked with variable names, and rename to ... (requires_variables, traverse_recursively) (_do_recursive_traversal): ... these. (_value_as_list_recursive_worker, transform_variable_recursively): Update to reflect changes. * automake.in (handle_LIBOBJS, handle_ALLOCA) (handle_libraries, handle_ltlibraries, am_primary_prefixes): Likewise. (define_objects_from_sources): Fix typo in comment.