+#SWITCH_ON_IF_BUILD_ALL(BBTK_USE_KWWIDGETS)
+#-----------------------------------------------------------------------------
+
+#-----------------------------------------------------------------------------
+OPTION(BBTK_USE_QT "Build bbtk with QT ?" OFF)
+IF (BBTK_USE_QT)
+ SET(USE_QT4 ON CACHE BOOL "Use QT" FORCE)
+ELSE (BBTK_USE_QT)
+ SET(USE_QT4 OFF CACHE BOOL "Use QT" FORCE)
+ENDIF (BBTK_USE_QT)
+SWITCH_ON_IF_BUILD_ALL(BBTK_USE_QT)