* configure.ac: New file.
	* Makefile.am: New file.
	* config/xt-rules.mk: New file.
	* config/ccview.sh: Moved from `etc'.
	* config/depcomp: New file.
	* config/Makefile.am: New file.
	* config/mkinstalldirs: New file.
	* config/missing: New file.
	* config/install-sh: New file.
	* configure.ac: New file.
	* test/Makefile.am: New file.
	* src/Makefile.am: New file.
	* src/grammar/Makefile.am: New file.
	* src/disambiguate/Makefile.am: New file.
	* lib/Makefile.am: New file.
	* etc: Renamed to `config'.
	* etc/disambiguate-check: Deleted (now generated).
	* etc/sdf-check: Likewise.
	* config/sdf-check.in: New file.
	* config/sdf-check.in: New file.