/usr/lib/ is in libvtk7-qt-dev 7.1.1+dfsg1-2.
This file is owned by root:root, with mode 0o755.
..
/usr/lib/cmake/
/usr/lib/cmake/vtk-7.1/
/usr/lib/cmake/vtk-7.1/Modules/
/usr/lib/cmake/vtk-7.1/Modules/vtkGUISupportQt.cmake
/usr/lib/cmake/vtk-7.1/Modules/vtkGUISupportQtOpenGL.cmake
/usr/lib/cmake/vtk-7.1/Modules/vtkGUISupportQtSQL.cmake
/usr/lib/cmake/vtk-7.1/Modules/vtkGUISupportQtWebkit.cmake
/usr/lib/cmake/vtk-7.1/Modules/vtkRenderingQt.cmake
/usr/lib/cmake/vtk-7.1/Modules/vtkRenderingQtHierarchy.txt
/usr/lib/cmake/vtk-7.1/Modules/vtkViewsQt.cmake
/usr/lib/x86_64-linux-gnu/
/usr/lib/x86_64-linux-gnu/libvtkGUISupportQt-7.1.so
/usr/lib/x86_64-linux-gnu/libvtkGUISupportQtOpenGL-7.1.so
/usr/lib/x86_64-linux-gnu/libvtkGUISupportQtSQL-7.1.so
/usr/lib/x86_64-linux-gnu/libvtkGUISupportQtWebkit-7.1.so
/usr/lib/x86_64-linux-gnu/libvtkRenderingQt-7.1.so
/usr/lib/x86_64-linux-gnu/libvtkRenderingQtPython36D-7.1.so
/usr/lib/x86_64-linux-gnu/libvtkRenderingQtTCL-7.1.so
/usr/lib/x86_64-linux-gnu/libvtkViewsQt-7.1.so