/usr/include/vxl/v3p/netlib/eispack/ is in libvxl1-dev 1.17.0.dfsg2-4.
This file is owned by root:root, with mode 0o755.
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/usr/include/vxl/v3p/netlib/eispack/balanc.h
/usr/include/vxl/v3p/netlib/eispack/balbak.h
/usr/include/vxl/v3p/netlib/eispack/cdiv.h
/usr/include/vxl/v3p/netlib/eispack/elmhes.h
/usr/include/vxl/v3p/netlib/eispack/eltran.h
/usr/include/vxl/v3p/netlib/eispack/epslon.h
/usr/include/vxl/v3p/netlib/eispack/hqr.h
/usr/include/vxl/v3p/netlib/eispack/hqr2.h
/usr/include/vxl/v3p/netlib/eispack/otqlrat.h
/usr/include/vxl/v3p/netlib/eispack/pythag.h
/usr/include/vxl/v3p/netlib/eispack/rebak.h
/usr/include/vxl/v3p/netlib/eispack/reduc.h
/usr/include/vxl/v3p/netlib/eispack/rg.h
/usr/include/vxl/v3p/netlib/eispack/rs.h
/usr/include/vxl/v3p/netlib/eispack/rsg.h
/usr/include/vxl/v3p/netlib/eispack/tql1.h
/usr/include/vxl/v3p/netlib/eispack/tql2.h
/usr/include/vxl/v3p/netlib/eispack/tred1.h
/usr/include/vxl/v3p/netlib/eispack/tred2.h