DGraph - Update CMakeLists so that DGraph depends only on QtCore

Utilities/DGraph/CMakeLists.txt

@@ -30,9 +30,9 @@ PROJECT(DGraph)
 
 SET(CTK_SOURCE_DIR ${CMAKE_CURRENT_SOURCE_DIR}/../../)
 
-# QT is required
-INCLUDE(${CTK_SOURCE_DIR}/CMake/ctkMacroSetupQt.cmake)
-ctkMacroSetupQt()
+SET(QT_DONT_USE_QTGUI TRUE)
+FIND_PACKAGE(Qt4 4.6 REQUIRED)
+INCLUDE(${QT_USE_FILE})
 
 INCLUDE_DIRECTORIES(
   ${CMAKE_CURRENT_SOURCE_DIR}