/usr/include/vtk-5.8/TclTk/internals/tk8.5/ is in libvtk5-dev 5.8.0-5.
This file is owned by root:root, with mode 0o755.
..
/usr/include/vtk-5.8/TclTk/internals/tk8.5/default.h
/usr/include/vtk-5.8/TclTk/internals/tk8.5/tclInt.h
/usr/include/vtk-5.8/TclTk/internals/tk8.5/tclIntDecls.h
/usr/include/vtk-5.8/TclTk/internals/tk8.5/tclIntPlatDecls.h
/usr/include/vtk-5.8/TclTk/internals/tk8.5/tclPort.h
/usr/include/vtk-5.8/TclTk/internals/tk8.5/tclUnixPort.h
/usr/include/vtk-5.8/TclTk/internals/tk8.5/tclWinPort.h
/usr/include/vtk-5.8/TclTk/internals/tk8.5/tkInt.h
/usr/include/vtk-5.8/TclTk/internals/tk8.5/tkIntDecls.h
/usr/include/vtk-5.8/TclTk/internals/tk8.5/tkIntPlatDecls.h
/usr/include/vtk-5.8/TclTk/internals/tk8.5/tkMacOSXDefault.h
/usr/include/vtk-5.8/TclTk/internals/tk8.5/tkMacOSXInt.h
/usr/include/vtk-5.8/TclTk/internals/tk8.5/tkMacOSXPort.h
/usr/include/vtk-5.8/TclTk/internals/tk8.5/tkPlatDecls.h
/usr/include/vtk-5.8/TclTk/internals/tk8.5/tkPort.h
/usr/include/vtk-5.8/TclTk/internals/tk8.5/tkUnixDefault.h
/usr/include/vtk-5.8/TclTk/internals/tk8.5/tkUnixPort.h
/usr/include/vtk-5.8/TclTk/internals/tk8.5/tkWin.h
/usr/include/vtk-5.8/TclTk/internals/tk8.5/tkWinDefault.h
/usr/include/vtk-5.8/TclTk/internals/tk8.5/tkWinInt.h
/usr/include/vtk-5.8/TclTk/internals/tk8.5/tkWinPort.h