diff --git a/CMakeLists.txt b/CMakeLists.txt
index 2f63516..65babf9 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -1,5 +1,8 @@
 cmake_minimum_required(VERSION 3.3.0)
 project(arduino_midi_library)
 
+set(ROOT_SOURCE_DIR ${PROJECT_SOURCE_DIR})
+include_directories(${ROOT_SOURCE_DIR})
+
 add_subdirectory(src)
 add_subdirectory(test)
diff --git a/test/runner/test-runner_Main.cpp b/test/runner/test-runner_Main.cpp
index fe960a7..d5cfa6b 100644
--- a/test/runner/test-runner_Main.cpp
+++ b/test/runner/test-runner_Main.cpp
@@ -2,9 +2,14 @@
 
 BEGIN_TEST_RUNNER_NAMESPACE
 
+bool run()
+{
+    return false;
+}
+
 END_TEST_RUNNER_NAMESPACE
 
 int main()
 {
-    return 0;
+    return TEST_RUNNER_NAMESPACE::run() ? 0 : 1;
 }
diff --git a/test/runner/test-runner_Main.h b/test/runner/test-runner_Main.h
index 826c393..690391c 100644
--- a/test/runner/test-runner_Main.h
+++ b/test/runner/test-runner_Main.h
@@ -5,3 +5,5 @@
 BEGIN_TEST_RUNNER_NAMESPACE
 
 END_TEST_RUNNER_NAMESPACE
+
+int main();