message: Make sure math constants are defined for cwise ops.
diff: @@ -17,6 +17,8 @@ limitations under the License.
  #define TENSORFLOW_CORE_KERNELS_CWISE_OPS_COMMON_H_
  // See docs in ../ops/math_ops.cc.
  +#define _USE_MATH_DEFINES
  +#include <cmath>
  #define EIGEN_USE_THREADS
  