pytorch

dbbb2fc9 - Remove the linkage to CUDA libraries when ROCM is used. (#29009)

Remove the linkage to CUDA libraries when ROCM is used. (#29009) Summary: Currently when ROCM is used, CUDA libraries are still linked. There has been no error because USE_CUDA is set to OFF upon a preliminary check in tools/setup_helper/cuda.py, and no CUDA variable is set. Hence, these lines can pass simply because those variables are always undefined, and thus expanded to empty strings. But this cannot be safely relied on, and is causing https://github.com/pytorch/pytorch/issues/28617 to fail. Pull Request resolved: https://github.com/pytorch/pytorch/pull/29009 Differential Revision: D18273472 Pulled By: ezyang fbshipit-source-id: b8b6580e8a44d874ac678ed9073412d4d2e393ee