if(QT4_FOUND AND QT4_USABLE)
   include(${QT_USE_FILE})
   include_directories(${CMAKE_CURRENT_BINARY_DIR})
   qt4_generate_moc(main.h moc_main.cpp)
   qt4_generate_moc(mandel.h moc_mandel.cpp)

   set(SOURCES main.cpp ${CMAKE_CURRENT_BINARY_DIR}/moc_main.cpp mandel.cpp
      ${CMAKE_CURRENT_BINARY_DIR}/moc_mandel.cpp)

   build_example(mandelbrot ${SOURCES} LIBS ${QT_LIBRARIES})

   # It is an interesting test if we can compare against the autovect
   # capabilities of Open64 and ICC, so we try to find those and compile extra
   # binaries with them
   find_program(O64_CXX openCC HINTS /opt/x86_open64-4.2.4/bin /opt/open64/bin)
   find_program(ICC_CXX icpc HINTS
      /opt/intel/bin
      $ENV{HOME}/intel/Compiler/11.1/072/bin/intel64)

   if(FALSE AND O64_CXX)
      add_custom_command(OUTPUT mandelbrot_open64
         COMMAND ${O64_CXX} -O3 -Wall -msse3
         -o ${CMAKE_CURRENT_BINARY_DIR}/mandelbrot_open64
         -I ${CMAKE_CURRENT_BINARY_DIR} -I ${QT_INCLUDE_DIR}
         -I ${QT_QTCORE_INCLUDE_DIR} -I ${QT_QTGUI_INCLUDE_DIR}
         -I ${CMAKE_SOURCE_DIR} -I ${CMAKE_SOURCE_DIR}/include
         -L ${QT_LIBRARY_DIR} -lQtGui ${SOURCES}
         -DVC_IMPL=Scalar
         DEPENDS ${SOURCES} Vc
         WORKING_DIRECTORY ${CMAKE_CURRENT_SOURCE_DIR}
         COMMENT "Bulding mandelbrot_open64"
         VERBATIM)
      add_custom_target(build_mandelbrot_open64 ALL DEPENDS mandelbrot_open64)
      add_target_property(build_mandelbrot_open64 LABELS "other")
      add_dependencies(other build_mandelbrot_open64)
   endif()

   if(FALSE AND ICC_CXX)
      get_target_property(VcLocation Vc LOCATION)
      add_custom_command(OUTPUT mandelbrot_icc
         COMMAND ${ICC_CXX} -O3 -xSSE3
         -o ${CMAKE_CURRENT_BINARY_DIR}/mandelbrot_icc
         -I ${CMAKE_CURRENT_BINARY_DIR} -I ${QT_INCLUDE_DIR}
         -I ${QT_QTCORE_INCLUDE_DIR} -I ${QT_QTGUI_INCLUDE_DIR}
         -I ${CMAKE_SOURCE_DIR} -I ${CMAKE_SOURCE_DIR}/include
         -L ${QT_LIBRARY_DIR} -lQtGui ${SOURCES} ${VcLocation}
         -DVC_IMPL=Scalar
         DEPENDS ${SOURCES} Vc
         WORKING_DIRECTORY ${CMAKE_CURRENT_SOURCE_DIR}
         COMMENT "Bulding mandelbrot_icc"
         VERBATIM)
      add_custom_target(build_mandelbrot_icc ALL DEPENDS mandelbrot_icc)
      add_target_property(build_mandelbrot_icc LABELS "other")
      add_dependencies(other build_mandelbrot_icc)
   endif()
endif()