Return an error code when extra files are found in filecheck:

	rm test-place/*~; \

	for f in $(EXTRA_DIST); do \

	  if test -f "$(top_srcdir)/tests/data/$$f"; then \

	    rm -f test-place/$$f; \

	    rm -f "test-place/$$f"; \

	  else \

	    echo "$$f is listed but missing!"; \

	  fi \

	done; \

	echo "Local files not present in EXTRA_DIST:" ; \

	ls test-place; \

	rm -rf test-place

	! ls test-place | grep . >/dev/null ; \

	RC=$$? ; \

	rm -rf test-place ; \

	exit $$RC