message: Build fix for collective_nccl_reducer_test_gpu for non-CUDA builds.
diff: @@ -12,6 +12,9 @@ WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  See the License for the specific language governing permissions and
  limitations under the License.
  ==============================================================================*/
  +
  +#ifdef GOOGLE_CUDA
  +
  #include "tensorflow/core/kernels/collective_nccl_reducer.h"
  #include <algorithm>
  @@ -34,8 +37,6 @@ limitations under the License.
  #include "tensorflow/core/public/session_options.h"
  #include "tensorflow/core/public/version.h"
  -#ifdef GOOGLE_CUDA
  -
  namespace tensorflow {
  static constexpr int kStepId = 10;
  