don't let virvo search for Qt 5

Author: aumuell

src/3rdparty/CMakeLists.txt

@@ -20,7 +20,7 @@ set(CMAKE_ARCHIVE_OUTPUT_DIRECTORY_MINSIZEREL "${COVISEDIR}/${DBG_ARCHSUFFIX}opt
 
 SET(DESKVOX_USE_VISIONARAY ${COVISE_USE_VISIONARAY} CACHE BOOL "Visionaray for Virvo" FORCE)
 SET(DESKVOX_USE_CUDA ${COVISE_USE_CUDA} CACHE BOOL "CUDA for Virvo" FORCE)
-SET(DESKVOX_USE_QT4 OFF CACHE BOOL "Qt4 for Virvo" FORCE)
+SET(DESKVOX_USE_QT5 ${COVISE_USE_QT5} CACHE BOOL "Qt5 for Virvo" FORCE)
 SET(DESKVOX_BUILD_VOX_DESK OFF CACHE BOOL "Qt GUI for Deskvox" FORCE)
 SET(DESKVOX_USE_RAYREND_BSPLINE OFF)
 SET(DESKVOX_USE_RAYREND_CSPLINE OFF)