CUDA: Support nvcc symlinking to ccache
Invoke nvcc -v foo to find the real CUDA bin directory. This is needed if nvcc is a symlink to ccache or colornvcc.
@trxcllnt @keith.j.kraus @brad.king
Fixes: #21177 (closed)
Topic-rename: cuda-nvcc-ccache-symlink
Edited by Rong Ou