* automake.in (ac_config_files_location): Declare as a hash.

* automake.in (ac_config_files_location): Declare as a hash.
(handle_configure): Rewrite the computation of AC_CONFIG_FILES
dependencies; make sure we don't use $(srcdir) or $(top_srcdir)
for inputs which are also outputs, and do not check inputs
relatively to the current directory.
(scan_autoconf_config_files): Take $where as argument, and
fill $ac_config_files_location.
* tests/output8.test, tests/output9.test: New files.
* tests/Makefile.am (TESTS): Add output8.test and output9.test.
Report from Bruno Haible.