This is a CMake Environment Variable. Its initial value is taken from the calling process environment.
Preferred executable for compiling host code when compiling
CUDA language files. Will only be used by CMake on the first configuration to determine
CUDA host compiler, after which the value for
CUDAHOSTCXX is stored in the cache as
CMAKE_CUDA_HOST_COMPILER. For any configuration run (including the first), the environment variable will be ignored if the
CMAKE_CUDA_HOST_COMPILER variable is defined.
This environment variable is primarily meant for use with projects that enable
CUDA as a first-class language. The
FindCUDA module will also use it to initialize its
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