/usr/include/shark/LinAlg/BLAS/ is in libshark-dev 3.1.3+ds1-2.
This file is owned by root:root, with mode 0o755.
..
/usr/include/shark/LinAlg/BLAS/assignment.hpp
/usr/include/shark/LinAlg/BLAS/blas.h
/usr/include/shark/LinAlg/BLAS/detail/
/usr/include/shark/LinAlg/BLAS/detail/functional.hpp
/usr/include/shark/LinAlg/BLAS/detail/iterator.hpp
/usr/include/shark/LinAlg/BLAS/detail/returntype_deduction.hpp
/usr/include/shark/LinAlg/BLAS/detail/traits.hpp
/usr/include/shark/LinAlg/BLAS/expression_types.hpp
/usr/include/shark/LinAlg/BLAS/fwd.hpp
/usr/include/shark/LinAlg/BLAS/io.hpp
/usr/include/shark/LinAlg/BLAS/kernels/
/usr/include/shark/LinAlg/BLAS/kernels/atlas/
/usr/include/shark/LinAlg/BLAS/kernels/atlas/potrf.hpp
/usr/include/shark/LinAlg/BLAS/kernels/cblas/
/usr/include/shark/LinAlg/BLAS/kernels/cblas/cblas_inc.hpp
/usr/include/shark/LinAlg/BLAS/kernels/cblas/dot.hpp
/usr/include/shark/LinAlg/BLAS/kernels/cblas/gemm.hpp
/usr/include/shark/LinAlg/BLAS/kernels/cblas/gemv.hpp
/usr/include/shark/LinAlg/BLAS/kernels/cblas/tpmv.hpp
/usr/include/shark/LinAlg/BLAS/kernels/cblas/trmm.hpp
/usr/include/shark/LinAlg/BLAS/kernels/cblas/trmv.hpp
/usr/include/shark/LinAlg/BLAS/kernels/cblas/trsm.hpp
/usr/include/shark/LinAlg/BLAS/kernels/cblas/trsv.hpp
/usr/include/shark/LinAlg/BLAS/kernels/default/
/usr/include/shark/LinAlg/BLAS/kernels/default/dot.hpp
/usr/include/shark/LinAlg/BLAS/kernels/default/gemm.hpp
/usr/include/shark/LinAlg/BLAS/kernels/default/gemv.hpp
/usr/include/shark/LinAlg/BLAS/kernels/default/potrf.hpp
/usr/include/shark/LinAlg/BLAS/kernels/default/syev.hpp
/usr/include/shark/LinAlg/BLAS/kernels/default/tpmv.hpp
/usr/include/shark/LinAlg/BLAS/kernels/default/trmm.hpp
/usr/include/shark/LinAlg/BLAS/kernels/default/trmv.hpp
/usr/include/shark/LinAlg/BLAS/kernels/default/trsm.hpp
/usr/include/shark/LinAlg/BLAS/kernels/default/trsv.hpp
/usr/include/shark/LinAlg/BLAS/kernels/dot.hpp
/usr/include/shark/LinAlg/BLAS/kernels/gemm.hpp
/usr/include/shark/LinAlg/BLAS/kernels/gemv.hpp
/usr/include/shark/LinAlg/BLAS/kernels/lapack/
/usr/include/shark/LinAlg/BLAS/kernels/lapack/fortran.hpp
/usr/include/shark/LinAlg/BLAS/kernels/lapack/syev.hpp
/usr/include/shark/LinAlg/BLAS/kernels/matrix_assign.hpp
/usr/include/shark/LinAlg/BLAS/kernels/potrf.hpp
/usr/include/shark/LinAlg/BLAS/kernels/syev.hpp
/usr/include/shark/LinAlg/BLAS/kernels/tpmv.hpp
/usr/include/shark/LinAlg/BLAS/kernels/traits.hpp
/usr/include/shark/LinAlg/BLAS/kernels/trmm.hpp
/usr/include/shark/LinAlg/BLAS/kernels/trmv.hpp
/usr/include/shark/LinAlg/BLAS/kernels/trsm.hpp
/usr/include/shark/LinAlg/BLAS/kernels/trsv.hpp
/usr/include/shark/LinAlg/BLAS/kernels/vector_assign.hpp
/usr/include/shark/LinAlg/BLAS/lu.hpp
/usr/include/shark/LinAlg/BLAS/matrix.hpp
/usr/include/shark/LinAlg/BLAS/matrix_expression.hpp
/usr/include/shark/LinAlg/BLAS/matrix_proxy.hpp
/usr/include/shark/LinAlg/BLAS/matrix_set.hpp
/usr/include/shark/LinAlg/BLAS/matrix_sparse.hpp
/usr/include/shark/LinAlg/BLAS/operation.hpp
/usr/include/shark/LinAlg/BLAS/permutation.hpp
/usr/include/shark/LinAlg/BLAS/triangular_matrix.hpp
/usr/include/shark/LinAlg/BLAS/vector.hpp
/usr/include/shark/LinAlg/BLAS/vector_expression.hpp
/usr/include/shark/LinAlg/BLAS/vector_proxy.hpp
/usr/include/shark/LinAlg/BLAS/vector_sparse.hpp