I want to get the data of a tensor, and  ld throw an error while using ATen library:
Undefined symbols for architecture x86_64: "long* at::Tensor::data<long>() const"

However,   Tensor::data<int64_t>, Tensor::data<int> and Tensor::data<long long>  work well. Does anyone know why the fundamental type long failed?
Environment:

MacOS 10.14.2
clang 4.2.1
torch 0.4.0 (installed by pip3.6)
c++ 17