Set `CUDA_PROPAGATE_HOST_FLAGS=OFF` in FindCUDA.cmake to avoid duplicate flag errors in nvcc that can occur when host flag forwarding is enabled and `-std=c++11` is set in `CMAKE_CXX_FLAGS` in the operative toolchain.
```
# Override the FindCUDA.cmake setting to avoid duplication of host flags if using a toolchain:
option(CUDA_PROPAGATE_HOST_FLAGS "Propage C/CXX_FLAGS and friends to the host compiler via -Xcompile" OFF)
```