Workaround for #363: do not set CUDA_HOST_COMPILER for the CUDA test

dlib/CMakeLists.txt

@@ -531,7 +531,7 @@ if (NOT TARGET dlib)
                            CMAKE_FLAGS "-DCMAKE_PREFIX_PATH=${CMAKE_PREFIX_PATH}"
                                        "-DCMAKE_INCLUDE_PATH=${CMAKE_INCLUDE_PATH}"
                                        "-DCMAKE_LIBRARY_PATH=${CMAKE_LIBRARY_PATH}"
-                                       "-DCUDA_HOST_COMPILER=${CUDA_HOST_COMPILER}"
+                                       #"-DCUDA_HOST_COMPILER=${CUDA_HOST_COMPILER}"
                            )
                if (NOT cuda_test_compile_worked)
                   message(STATUS "*** CUDA was found but your compiler failed to compile a simple CUDA program so dlib isn't going to use CUDA. ***")