libtorch cmake 配置提示 Failed to compute shorthash for libnvrtc.so

根据官方 issue 的内容，原因为 CMake 配置文件没有正确调用 Python 解释器。打开 libtorch 目录下的 ./share/cmake/Caffe2/public/cuda.cmake 文件并作如下修改。

# find lbnvrtc.so
set(CUDA_NVRTC_LIB "${CUDA_nvrtc_LIBRARY}" CACHE FILEPATH "")
if(CUDA_NVRTC_LIB AND NOT CUDA_NVRTC_SHORTHASH)find_package(Python COMPONENTS Interpreter)execute_process(COMMAND Python::Interpreter -c  <-- 对该处进行更改"import hashlib;hash=hashlib.sha256();hash.update(open('${CUDA_NVRTC_LIB}','rb').read());print(hash.hexdigest()[:8])"RESULT_VARIABLE _retvalOUTPUT_VARIABLE CUDA_NVRTC_SHORTHASH)if(NOT _retval EQUAL 0)message(WARNING "Failed to compute shorthash for libnvrtc.so")set(CUDA_NVRTC_SHORTHASH "XXXXXXXX")else()string(STRIP "${CUDA_NVRTC_SHORTHASH}" CUDA_NVRTC_SHORTHASH)message(STATUS "${CUDA_NVRTC_LIB} shorthash is ${CUDA_NVRTC_SHORTHASH}")endif()
endif()

将 COMMAND Python::Interpreter -c 修改为 COMMAND ${Python_EXECUTABLE} -c，该更改在一份 2 个月前的 PR 中已被官方采纳，但合并失败，后续应该会合入此项更改。