--- /dev/null
+# usage: tests/using-intree make -f tests/Makefile
+# (optionally setting TESTSCRIPTS='tests/tests/foo tests/tests/bar')
+
+TESTSCRIPTS ?= $(shell run-parts --list tests/tests)
+TESTNAMES := $(notdir $(TESTSCRIPTS))
+
+all: $(foreach t,$(TESTNAMES),tests/tmp/$t.ok)
+ @echo "ALL PASSED"
+
+tests/tmp:
+ mkdir -p $@
+
+tests/tmp/%.ok: tests/tmp
+ tests/tests/$* >tests/tmp/$*.log 2>&1