diff --git a/.gitmodules b/.gitmodules
new file mode 100644
index 00000000..74a56b5c
--- /dev/null
+++ b/.gitmodules
@@ -0,0 +1,3 @@
+[submodule "support/nodeunit"]
+	path = support/nodeunit
+	url = https://github.com/caolan/nodeunit.git
diff --git a/Makefile b/Makefile
new file mode 100644
index 00000000..34c3b3e8
--- /dev/null
+++ b/Makefile
@@ -0,0 +1,4 @@
+
+check:
+	@./support/nodeunit/bin/nodeunit test/common_test.js
+
diff --git a/support/nodeunit b/support/nodeunit
new file mode 160000
index 00000000..b41facc8
--- /dev/null
+++ b/support/nodeunit
@@ -0,0 +1 @@
+Subproject commit b41facc8505e4516161452239a25711413711373