New in version 3.8.

This is a CMake Environment Variable. Its initial value is taken from the calling process environment.

Default compilation flags to be used when compiling CUDA files. Will only be used by CMake on the first configuration to determine CUDA default compilation flags, after which the value for CUDAFLAGS is stored in the cache as CMAKE_CUDA_FLAGS. For any configuration run (including the first), the environment variable will be ignored if the CMAKE_CUDA_FLAGS variable is defined.