Index: lib/CMakeLists.txt
===================================================================
--- lib/CMakeLists.txt
+++ lib/CMakeLists.txt
@@ -27,5 +27,7 @@
 add_subdirectory(TextAPI)
 add_subdirectory(ToolDrivers)
 add_subdirectory(XRay)
-add_subdirectory(Testing)
+if (${LLVM_INCLUDE_TESTING})
+  add_subdirectory(Testing)
+endif()
 add_subdirectory(WindowsManifest)