Fix VTK/Chemistry compilation error with OpenQube/Qt

This fixes a compilation error in which the Qt headers
required by the OpenQube headers could not be found
because the Qt include directories were not setup when
compiling VTK/Chemistry.

Change-Id: I60a38ca2d95b62571955c6498421eeeceb6aa3b8

Chemistry/CMakeLists.txt

@@ -40,11 +40,13 @@ SET(KIT_JAVA_DEPS)
 FIND_PACKAGE(OpenQube QUIET)
 IF(OpenQube_FOUND)
   FIND_PACKAGE(Eigen2 QUIET)
+  FIND_PACKAGE(Qt4 COMPONENTS QtCore REQUIRED QUIET)
 ENDIF(OpenQube_FOUND)
 VTK_DEPENDENT_OPTION(VTK_USE_OPENQUBE
                      "Compile OpenQube support into vtkChemistry."
                      ON "OpenQube_FOUND;EIGEN2_FOUND" OFF)
 IF(VTK_USE_OPENQUBE)
+  INCLUDE(${QT_USE_FILE})
   INCLUDE_DIRECTORIES(${OpenQube_INCLUDE_DIRS} ${EIGEN2_INCLUDE_DIR})
   SET(KIT_LIBS ${KIT_LIBS} OpenQube)
   SET(Kit_SRCS

Chemistry/Testing/Cxx/CMakeLists.txt

@@ -26,6 +26,7 @@ IF (VTK_USE_RENDERING AND VTK_USE_CHEMISTRY)
       TestCMLMoleculeReader.cxx
       )
     IF(VTK_USE_OPENQUBE)
+      INCLUDE(${QT_USE_FILE})
       # Add Eigen to the include path for the OpenQube headers
       INCLUDE_DIRECTORIES(${EIGEN2_INCLUDE_DIR})
       SET(MyTests