* lib/Automake/Variable.pm (loc_and_value_as_list_recursive,

* lib/Automake/Variable.pm (loc_and_value_as_list_recursive,
_value_as_list_recursive_worker): Merge into ...
(value_as_list_recursive): ... this function.  Pass options
as a hash argument, and use the `location' option to trigger
the behavior of loc_and_value_as_list_recursive.
(traverse_recursively, transform_variable_recursively): Take
options as a %options argument.
(_do_recursive_traversal): Perform expansion of inner variables
(as in `$(FILE).ext') on request.
* automake.in (handle_options, check_libobjs_sources)
(handle_source_transform, handle_LIBOBJS, handle_ltlibraries)
(handle_ltlibraries, handle_man_pages, handle_dist)
(handle_gettext, am_install_var): Adjust usage of
value_as_list_recursive.
(handle_texinfo_helper): Pass inner_expand to
value_as_list_recursive.
* tests/txinfo28.test: New file.
* tests/Makefile.am (TESTS): Add txinfo28.test.
Report from Ralf Corsepius.