--testlist="$(srcdir)/selftest/tests.sh|" \
--exclude=$(srcdir)/selftest/skip \
--socket-wrapper $(TESTS) | \
- $(PERL) $(selftestdir)/filter-subunit.pl \
+ $(PYTHON) $(selftestdir)/filter-subunit \
--expected-failures=$(srcdir)/selftest/knownfail | \
$(PYTHON) $(selftestdir)/format-subunit --immediate