or download this
.IMPORT: PATH
PATH += ;build
.EXPORT: PATH
test_dynamic :: subdirs-test_dynamic
$(FULLPERLRUN) "-MExtUtils::Command::MM" "-MTest::Harness" "-e" "u
+ndef *Test::Harness::Switches; test_harness($(TEST_VERBOSE), '$(INST_
+LIB)', '$(INST_ARCHLIB)')" $(TEST_FILES)