CHECK_EQ in utils/EMD/cuda/emd_kernel.cu is undefined

[SagacityPuppy]

Hi, thanks for your wonderful work.

When I compile the EMD library, there raising a ERROR of the undefined CHECK_EQ method

Then I find that CHECK_INPUT, CHECK_CUDA, CHECK_CONTIGUOUS in the emd_kernel.cu (line 20-22) file are all well-defined but except CHECK_EQ (such as line 182-184).

I would appreciate it if you could provide the code snippet about the correct definition of CHECK_EQ, or point out the mistakes I made in the process.