diff --git a/CMakeLists.txt b/CMakeLists.txt
index bf517d4..ee24a0b 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -23,6 +23,7 @@ set(INCLUDE_DIRS
 )
 
 add_executable(${EXECUTABLE_NAME} ${SRC_FILES})
+include_directories(${INCLUDE_DIRS})
 target_include_directories(${EXECUTABLE_NAME} PRIVATE ${INCLUDE_DIRS})
 target_link_libraries(${EXECUTABLE_NAME} PRIVATE
         ${CMAKE_CURRENT_LIST_DIR}/${OS_NAME}/libgamematrix.a
diff --git a/hello_world.c b/hello_world.c
new file mode 100644
index 0000000..f8de7a1
--- /dev/null
+++ b/hello_world.c
@@ -0,0 +1,8 @@
+#include <iostream>
+
+int main()
+{
+    std::cout << "Hello world." << std::endl;
+
+    return 0;
+}
\ No newline at end of file