--- src/async/CMakeLists.txt.orig	2018-03-04 18:59:29 UTC
+++ src/async/CMakeLists.txt
@@ -1,7 +1,9 @@
+if(NOT QT_ONLY)
 add_subdirectory(core)
-add_subdirectory(cpp)
 add_subdirectory(audio)
+add_subdirectory(cpp)
+add_subdirectory(demo)
+endif(NOT QT_ONLY)
 if(USE_QT)
   add_subdirectory(qt)
 endif(USE_QT)
-add_subdirectory(demo)