message: dnn: fix tests build with disabled OpenCL
diff: @@ -246,19 +246,23 @@ static testing::internal::ParamGenerator<tuple<Backend, Target> > dnnBackendsAnd
  if (withHalide)
  {
  targets.push_back(make_tuple(DNN_BACKEND_HALIDE, DNN_TARGET_CPU));
  +#ifdef HAVE_OPENCL
  if (cv::ocl::useOpenCL())
  targets.push_back(make_tuple(DNN_BACKEND_HALIDE, DNN_TARGET_OPENCL));
  +#endif
  }
  #endif
  #ifdef HAVE_INF_ENGINE
  if (withInferenceEngine)
  {
  targets.push_back(make_tuple(DNN_BACKEND_INFERENCE_ENGINE, DNN_TARGET_CPU));
  +#ifdef HAVE_OPENCL
  if (cv::ocl::useOpenCL())
  {
  targets.push_back(make_tuple(DNN_BACKEND_INFERENCE_ENGINE, DNN_TARGET_OPENCL));
  targets.push_back(make_tuple(DNN_BACKEND_INFERENCE_ENGINE, DNN_TARGET_OPENCL_FP16));
  }
  +#endif
  if (checkMyriadTarget())
  targets.push_back(make_tuple(DNN_BACKEND_INFERENCE_ENGINE, DNN_TARGET_MYRIAD));
  }
  