Cuda support/headers?

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Hello I installed OpenCV 3.1 from source and I'm trying to run some examples that use CUDA but I seem to not have the required headers.

#include <opencv2/cudaimgproc.hpp>
#include <opencv2/cudabgsegm.hpp>
#include <opencv2/cudawarping.hpp>

I used WITH_CUDA=ON CUDA_GENERATION=Auto CUDA_FAST_MATH=1 WITH_CUBLAS=1. Btw my system is Debian 8.