Index: uspace/lib/cpp/include/internal/test/array.hpp
===================================================================
--- uspace/lib/cpp/include/internal/test/array.hpp	(revision 11e2adfb002068158dd9903e8ab44eee177df4f1)
+++ uspace/lib/cpp/include/internal/test/array.hpp	(revision b946b052fccd6c42cda54b3077e1e5c74d524625)
@@ -27,4 +27,7 @@
  */
 
+#ifndef LIBCPP_TEST_ARRAY
+#define LIBCPP_TEST_ARRAY
+
 #include <internal/test/test.hpp>
 
@@ -41,2 +44,4 @@
     };
 }
+
+#endif
Index: uspace/lib/cpp/include/internal/test/test.hpp
===================================================================
--- uspace/lib/cpp/include/internal/test/test.hpp	(revision 11e2adfb002068158dd9903e8ab44eee177df4f1)
+++ uspace/lib/cpp/include/internal/test/test.hpp	(revision b946b052fccd6c42cda54b3077e1e5c74d524625)
@@ -26,4 +26,7 @@
  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  */
+
+#ifndef LIBCPP_TEST_TEST
+#define LIBCPP_TEST_TEST
 
 #include <utility>
@@ -74,2 +77,4 @@
     };
 }
+
+#endif