* automake.in (handle_multilib): Register all-multi.

* automake.in (handle_multilib): Register all-multi.
(file_contents_internal): Insert n when concatenating actions
from "factored" rules.
* lib/config-ml.in: New file, from GCC, including a patch
from Ralf Corsepius (see GCC's PR 11526).
* lib/symlink-tree.in: New file, from GCC.
* lib/Makefile.am (dist_script_DATA): Add config-ml.in and
symlink-tree.
* lib/am/clean.am (distclean-generic): Do not delete Makefile here...
(distclean, maintainer-clean): ... do it here.
* lib/am/depend.am (distclean-depend): Likewise, replace by
(distclean, maintainer-clean): ... these.
* lib/am/multilib.am (all-recursive, install-recursive,
mostlyclean-recursive, clean-recursive, distclean-recursive,
maintainer-clean-recursive): Remove these rules.
(mostlyclean-am, clean-am, distclean-am, maintainer-clean-am): Replace
by ...
(mostlyclean, clean, distclean, maintainer-clean): ... these.
(all-am): Remove, done in handle_multilib.
(install-am): Replace by ...
(install-exec-am): ... this.
* tests/Makefile.am (TESTS): Add multlib.test.
* tests/multlib.test: New file, based on a test case by
Ralf Corsepius