--- CMakeLists.txt.orig	2019-01-29 23:00:07 UTC
+++ CMakeLists.txt
@@ -350,9 +350,15 @@ add_custom_target(install-thrust
 )
 
 # add examples, testing and performance testing targets
-add_subdirectory(examples)
-add_subdirectory(testing)
-add_subdirectory(performance)
+if (ENABLE_EXAMPLES)
+  add_subdirectory(examples)
+endif()
+if (ENABLE_TESTING)
+  add_subdirectory(testing)
+endif()
+if (ENABLE_PERFORMANCE)
+  add_subdirectory(performance)
+endif()
 
 ### make zip acrhive