diff --git a/CMakeLists.txt b/CMakeLists.txt
index 336bbdbc..4b9e8c88 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -736,12 +737,12 @@ endif()
 #
 # Auxiliary build and test utils.
 #
-add_subdirectory(utils)
+#add_subdirectory(utils)
 
 #
 # Auxiliary tools.
 #
-add_subdirectory(tools)
+#add_subdirectory(tools)
 
 #
 # Test and runtime targets. Note that enable_testing() is order-sensitive!