Howdy on GPU

[Ameen-Sha-Cheerangan]

• Found cuDNN: /usr/lib/x86_64-linux-gnu/libcudnn.so -- Building a CUDA test project to see if your compiler is compatible with CUDA... -- Checking if you have the right version of cuDNN installed. -- Found cuDNN, but it looks like the wrong version so dlib will not use it. -- Dlib requires cuDNN V5.0 OR GREATER. Since cuDNN is not found DLIB WILL NOT USE CUDA. -- If you have cuDNN then set CMAKE_PREFIX_PATH to include cuDNN's folder. -- Disabling CUDA support for dlib. DLIB WILL NOT USE CUDA

how to fix this 
I have CUDA 11.6 with CUDNN 8.
It is working fine on sample programs.

[Ameen-Sha-Cheerangan]

This is the content in /usr/include/x86_64-linux-gnu/cudnn_version_v8.h `

ifndef CUDNN_VERSIONH

define CUDNN_VERSIONH

define CUDNN_MAJOR 8

define CUDNN_MINOR 4

define CUDNN_PATCHLEVEL 0

define CUDNN_VERSION (CUDNN_MAJOR 1000 + CUDNN_MINOR 100 + CUDNN_PATCHLEVEL)

endif / CUDNN_VERSION_H /`