diff --git a/3rdparty/o2/CMakeLists.txt b/3rdparty/o2/CMakeLists.txt
new file mode 100644
index 0000000000000000000000000000000000000000..b5c22538afead5134921f9f66052e158b1a9064d
--- /dev/null
+++ b/3rdparty/o2/CMakeLists.txt
@@ -0,0 +1,7 @@
+cmake_minimum_required(VERSION 2.8.11)
+
+add_subdirectory(src)
+
+if(BUILD_EXAMPLES)
+  add_subdirectory(examples)
+endif(BUILD_EXAMPLES)