for redirecting the gcc toolchain used by nvcc (and,
if necessary, directly compiled CC/C++ code) for
compatibility with CUDA. This class can be inherited
by recipes that need to compile CUDA-compatible code
but do not need the CUDA toolkit dependencies.
The class sets variables CC_FOR_CUDA and CXX_FOR_CUDA.
Recipes needing to use this version of the compiler
must set CC and/or CXX to point to these variables.
Signed-off-by: Matt Madison <matt@madison.systems>
