* src/tests/test-suites/subdirs.mk: New.
	* src/tests/test-suites/Makefile.am: Use it.
	* src/tests/test-suites/generate-all.sh: Comment changes.
	* build-aux/move-if-change: New.
	* build-aux/vcsn.m4 (VCSN_TESTS): Remove.
	* build-aux/Makefile.am: New.
	* build-aux/find_tests.sh: Also create subdirs.mk.
	* Makefile.am, configure.ac: Process build-aux/Makefile.am.
	* doc/NEWS.txt: 0.8a.